Optoelectronics Soft-Matter Lab

Journal articles

Masahito Oh-e and Deng-Yun Zheng,
“Reversibly switching liquid crystals between three orthogonal orientation states for use in rapid-response THz phase shifters,”
Opt. Express, 31(5),8632–8640 (2023). DOI: 10.1364/OE.484171
Featured on Advances in Engineering
Masahito Oh-e, “Breaking the Speed Barrier: Three-State Switching Unleashes the Power of Terahertz Technology Beyond 5G,” Feature at Advances in Engineering, Aug. 15 (2023).
Masahito Oh-e,
“Novel switching of liquid crystals for use in rapid THz phase shifters discovered from the dimensional effects of electrodes,”
Proc. SPIE, 12442, 1244202 (2023). DOI: 10.1117/12.2648826
Meng-Hsiang Chang and Masahito Oh-e,
“Kinetic arrest during the drying of cellulose nanocrystal films from aqueous suspensions analogous to the freezing of thermal motions,”
Sci. Rep., 12, 21042 (2022). DOI: 10.1038/s41598-022-24926-8
Masahito Oh-e and Deng-Yun Zheng,
“Newly discovered dimensional effects of electrodes on liquid crystal THz phase shifters enable novel switching between in-plane and out-of-plane,”
Sci. Rep., 12, 5482 (2022). DOI: 10.1038/s41598-022-07832-x
Neeru Agarwal, Neeraj Agarwal, Chih-Wen Lu and Masahito Oh-e,
“A chopper-embedded BGR composite noise reduction circuit for clock generator,”
Electron., 10(18), 2257 (2021). DOI: 10.3390/electronics10182257
Masahito Oh-e and Akira Nagasawa,
“Unravelling the mysteries of deep-blue luminescence,”
Research Outreach, 124, 166–169 (2021). DOI: 10.32907/RO-124-1501675952
Neeraj Agarwal, Neeru Agarwal, Chih-Wen Lu, and Masahito Oh-e,
“A 33 MHz fast-locking PLL with programmable VCO and automatic band selection for clock generator application,”
Electron., 10(14), 1743 (2021). DOI: 10.3390/electronics10141743
Masahito Oh-e,
“Intriguing molecular discoveries in display materials,”
Scientia, 138, 70–73 (2021). DOI: 10.33548/SCIENTIA690
Deng-Yun Zheng, Meng-Hsiang Chang, Ci-Ling Pan, and Masahito Oh-e,
“Effects of O₂ plasma treatments on the photolithographic patterning of PEDOT:PSS,”
Coatings, 11(1), 31 (2021). DOI: 10.3390/coatings11010031
Masahito Oh-e and Akira Nagasawa,
“Interactions between hydrated cerium(III) cations and carboxylates in an aqueous solution: Anomalously strong complex formation with diglycolate, suggesting a chelate effect,”
ACS Omega, 5(49), 31880–31890 (2020). DOI: 10.1021/acsomega.0c04724
Masahito Oh-e and Akira Nagasawa,
“Advancing the a posteriori quest for deep-blue phosphorescence: Quantifying excitation-induced metal-to-ligand charge transfer as a guiding indicator,”
Organometallics, 39(22), 3951–3960 (2020). DOI: 10.1021/acs.organomet.0c00506
Hiroshi Nakano and Masahito Oh-e,
“Electronic-ground state analysis of Eu(II)-doped alkali-earth sulfide phosphors for photoluminescence properties,”
J. Appl. Phys., 125, 075101 (2019).; DOI: 10.1063/1.5059371 Selected as an Editor’s pick.
Masahito Oh-e, Hidenori Ogata, and Fumito Araoka,
“Randomization and constraint of molecular alignment and orientation: Temperature dependent anisotropy and phase transition in vapor-deposited thin films of organic cross-shaped molecules,”
ACS Omega, 4(1), 39–47 (2019). DOI: 10.1021/acsomega.8b02560
Fumito Araoka, Morio Isoda, Daigo Miyajima, Inseon Seo, Masahito Oh-e, Takuzo Aida, and Hideo Takezoe,
“Polar dynamics at a functional group level: Infrared-visible sum-frequency generation study on polar columnar liquid crystals,”
Adv. Electron. Mater., 3, 1600503 (2017). DOI:10.1002/aelm.201600503
David R. Evans, H. Shaun Kwak, David J. Giesen, Alexander Goldberg, Mathew D. Halls, and Masahito Oh-e,
“Estimation of charge carrier mobility in amorphous organic materials using percolation corrected random-walk model,”
Org. Electron., 29, 50–56 (2016). DOI: 10.1016/j.orgel.2015.11.021
Tetsuji Itoh, Shigeru Aomori, and Masahito Oh-e,
“Synthesis, properties and FET characteristics of oxygen-based heterocycle dimers 9,9’-bi(benzo[b]naphtha[2,1-d]furan),”
Synth. Met., 209, 355–360 (2015). DOI: 10.1016/j.synthmet.2015.08.008
Fumito Araoka, Morio Isoda, Masahito Oh-e, Daigo Miyajima, Takuzo Aida, and Hideo Takezoe,
“Liquid crystals for paintable ferroelectronics,”
SPIE Newsroom (Aug. 5, 2014). DOI: 10.1117/2.1201407.005536
Hirohiko Houjou, Masakazu Kamura, Yuta Nagano, Muneyuki Ito, Shigeru Aomori, and Masahito Oh-e,
“Striking effects of cobalt (III) nuclearity in fused salphen complexes on their electroconductivity and thin film transistor activity,”
Org. Electron., 14, 3472–3476 (2013). DOI: 10.1016/j.orgel.2013.09.022
Masahito Oh-e, Hidenori Ogata, Yoshimasa Fujita, and Mitsuhiro Koden,
“Anisotropy in amorphous films of cross-shaped molecules with an accompanying effect on carrier mobility: Ellipsometric and sum-frequency vibrational spectroscopic studies,”
Appl. Phys. Lett., 102, 101905 (2013). DOI: 10.1063/1.4792746
Featured on Advances in Engineering
Tetsuji Itoh, Shigeru Aomori, Masahito Oh-e, Mitsuhiro Koden, and Yasuhiko Arakawa,
“Improved stability in N-alkylated organic semiconductors for thin film transistors: Synthesis and characterization of N,N′-dialkylated dihydrodiazapentacene derivatives,”
Synth. Met., 162(13–14), 1264–1270 (2012). DOI: 10.1016/j.synthmet.2012.05.014
Taekyu Shim, Sunghyun Kim, Doseok Kim, and Masahito Oh-e,
“Fluorescence enhancement of dye-doped liquid crystal by dye-induced alignment effect,”
J. Appl. Phys., 110, 063532 (2011). DOI: 10.1063/1.3642960
Masahito Oh-e,
“Useful and practical essence of sum-frequency generation spectroscopy : A tool for analysis of molecular orientations at the surfaces and interfaces of liquid crystals and polymers,”
EKISHO, Vol. 15 (4), 327(59)–349(81) (2011).
Masahito Oh-e,
“Theoretical background of surface nonlinear optics: Aiming at useful tools to analyze surfaces/interfaces of liquid crystals and alignment layers,”
EKISHO, Vol. 15 (3), 245(91)–258(104) (2011).
Jin Seog Gwag, Jin Hyuk Kwon, Masahito Oh-e, Jun’ichi Niitsuma, Makoto Yoneya, and Hiroshi Yokoyama,
“Higher-order surface free energy in azimuthal nematic anchoring on nanopatterned grooves,”
Appl. Phys. Lett., 95, 103101 (2009). DOI: 10.1063/1.3225556
Jin Seog Gwag, Masahito Oh-e, Makoto Yoneya, and Hiroshi Yokoyama,
“A functionally separated nanoimprinting material tailored for homeotropic liquid crystal alignment,”
Nanotechnology, 19, 395301 (2008). DOI: 10.1088/0957-4484/19/39/395301
Taekyu Shim, Sunghyun Kim, Doseok Kim, and Masahito Oh-e,
“Comparison of the fluorescence characteristics of dye molecules in liquid crystal and conventional solvents,”
J. Korean Phys. Soc., 53(4), 2261–2264 (2008). DOI: 10.3938/jkps.53.2261
Masahiro Kawasaki, Shuji Imazeki, Masahiko Ando, and Masahito Oh-e,
“Reduction of contact resistance between organic semiconductor and electrodes with thiol-based self-assembled monolayer in low-density and lying-down phase,”
Jpn. J. Appl. Phys., 47(8), 6247–6250 (2008). DOI: 10.1143/JJAP.47.6247
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg Euan Hendry, and Mischa Bonn,
“Liquid crystal colloids studied by THz time-domain spectroscopy,”
Mol. Cryst. Liq. Cryst., 480, 21–28 (2008). DOI: 10.1080/15421400701821317
Masahito Oh-e,
“Probing surface and chirality of polymers and liquid crystals: Opportunities in sum-frequency vibrational spectroscopy,”
Proc. on 8^th Chitose International Forum on Photonics Science & Technology,
“Optical Materials and Devices New Stage” Ed. N. Tanio and H. Sasabe, pp. 47–52 (2008).
Jin Seog Gwag, Masahito Oh-e, Makoto Yoneya, and Hiroshi Yokoyama,
“Advanced nanoimprinting lithography using a graded functional imprinting material tailored for liquid crystal alignment,”
J. Appl. Phys., 102, 063501 (2007). DOI: 10.1063/1.2778742
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg Euan Hendry, and Mischa Bonn,
“THz time-domain spectroscopy of liquid crystal colloids,”
Proc. SPIE, 6487, 648706 (2007). DOI: 10.1117/12.712004
Masahito Oh-e and Hiroshi Yokoyama,
“Various surfaces of polymers for liquid crystal alignment,”
Conference: Society for Information Display – 10th Asian Symposium on Information Display 2007, ASID’07
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg Euan Hendry, and Mischa Bonn,
“Liquid crystal and liquid crystal colloid studied by THz time-domain spectroscopy,”
Conference: Optics InfoBase Conference Papers
Rajesh S. Pillai, Masahito Oh-e, Hiroshi Yokoyama, G. J. Brakenhoff, and Michiel Müller,
“Imaging colloidal particle induced topological defects in a nematic liquid crystal using third-harmonic generation microscopy,”
Opt. Express, 14(26), 12976–12983 (2006). DOI: 10.1364/OE.14.012976
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg Euan Hendry, and Mischa Bonn,
“High-frequency dielectric relaxation of liquid crystals: THz time-domain spectroscopy of liquid crystal colloids,”
Opt. Express, 14(23), 11433–11441 (2006). DOI: 10.1364/OE.14.011433
Masahito Oh-e, Hiroshi Yokoyama, Shinichi Yorozuya, Kazuo Akagi, M. A. Belkin, and Y. R. Shen,
“Chirality probed by sum-frequency vibrational spectroscopy for helically structured conjugated liquid crystalline polymers,”
Mol. Cryst. Liq. Cryst., 436, 73–81 (2005). DOI: 10.1080/15421400590954731
Yoonnam Jeon, Haesik Min, Doseok Kim, and Masahito Oh-e,
“Determination of the crystalline x-axis of quartz by second-harmonic phase measurement,”
J. Korean Phys. Soc., 46, S159–S162 (2005).
Masahito Oh-e, Hiroshi Yokoyama, Shinichi Yorozuya, Kazuo Akagi, M. A. Belkin, and Y. R. Shen,
“Sum-frequency vibrational spectroscopy of helically structured conjugated polymers,”
Phys. Rev. Lett., 93, 267402 (2004). DOI: 0.1103/PhysRevLett.93.267402
Masahito Oh-e, Hiroshi Yokoyama, and Doseok Kim,
“Mapping molecular orientation and conformation of polyimide surfaces for homeotropic liquid crystal alignment by nonlinear optical spectroscopy,”
Phys. Rev. E, 69, 051705 (2004). DOI: 10.1103/PhysRevE.69.051705
Jaeho Sung, Doseok Kim, C. N. Whang, Masahito Oh-e, and Hiroshi Yokoyama,
“Sum-frequency vibrational spectroscopic study of polyimide surfaces made by spin-coating and ionized cluster beam deposition,”
J. Phys. Chem. B, 108, 10991–10996 (2004). DOI: 10.1021/jp037762b
Masahito Oh-e, Hiroshi Yokoyama, and Steven Baldelli,
“Structure of the glycerol liquid/vapor interface studied by sum-frequency vibrational spectroscopy,”
Appl. Phys. Lett., 84, 4965–4967 (2004). DOI: 10.1063/1.1762699
Masahito Oh-e, Seok-Cheol Hong, and Y. R. Shen,
“Nonlinear optical spectroscopic studies of polymer surfaces for liquid crystal alignment : Photo-irradiated polyimide and rubbed polystyrene surfaces,”
Mol. Cryst. Liq. Cryst., 412, 339–349 (2004). DOI: 10.1080/15421400490440075
Masahito Oh-e,
“Sum-frequency vibrational spectroscopy: Application to polymer surfaces for liquid crystal alignment,”
Shinkuu, 47 (7), 522–528 (2004). DOI: 10.3131/jvsj.47.522
Masahito Oh-e, Yuka Tabe, and Hiroshi Yokoyama,
“Anisotropy of alkyl chains in an azobenzene monolayer at the air/water interface observed by sum-frequency vibrational spectroscopy,”
Phys, Rev. E, 68, 061602 (2003). DOI: 10.1103/PhysRevE.68.061602
Masahito Oh-e, Seok-Cheol Hong, and Y. R. Shen,
“Orientations of phenyl sidegroups and liquid crystal molecules on a rubbed polystyrene surface,”
Appl. Phys. Lett., 80 (5), 784–786 (2002). DOI: 10.1063/1.1435069
Masahito Oh-e, Tsuyosi Asahi, and Hiroshi Masuhara,
“Ultrafast charge separation & recombination dynamics in a nanometer thin film of polyimide observed by femtosecond transient absorption spectroscopy,”
J. Phys. Chem. B, 106, 5840–5844 (2002). DOI: 10.1021/jp013864v
Masahito Oh-e, Doseok Kim, and Y. R. Shen,
“Nonlinear optical spectroscopic studies of polyimide surfaces and LC adsorbates,”
Anal. Sci., 17S, i805–i808 (2001). DOI: 10.14891/analscisp.17icas.0.i805.0
Doseok Kim, Masahito Oh-e, and Y. R. Shen,
“Rubbed polyimide surface studied by sum-frequency vibrational spectroscopy,”
Macromolecules, 34, 9125–9129 (2001). DOI: 10.1021/ma0100908
Masahito Oh-e, Doseok Kim, and Y. R. Shen,
“Surface anisotropy from photo-induced bond breaking at polymer surfaces : A sum-frequency vibrational spectroscopic study of polyimide,”
J. Chem. Phys., 115 (12), 5582–5589 (2001). DOI: 10.1063/1.1391480
Seok-Cheol Hong, Masahito Oh-e, Y. R. Shen, Jason Ge, F. W. Harris, and S. Z. D. Cheng,
“Orientations of side chains and adsorbed liquid crystal molecules on a rubbed polyimide surface studied by optical second harmonic generation,”
Phys. Rev. E, 63 051706 (2001). DOI: 10.1103/PhysRevE.63.051706
Xing Wei, Doseok Kim, Masahito Oh-e, and Y. R. Shen,
“Nonlinear vibrational spectroscopy on rubbed polymer surfaces,”
Nonlinear Optics, 25, 13–22 (2001).
Masahito Oh-e, Alexander I. Lvovsky, Xing Wei, Doseok Kim, and Y. R. Shen,
“Nonlinear optical studies of surface structures of rubbed polyimides and adsorbed liquid crystal monolayers,”
Mol. Cryst. Liq. Cryst., 364, 427–434 (2001). DOI: 10.1080/10587250108025012
Masahito Oh-e,
“In-plane switching electro-optical effect of nematic liquid crystals,”
Liquid Crystals Today, 10 (2), pp. 6–10 (2001). DOI: 10.1080/14645180110074800
Masahito Oh-e, Alexander I. Lvovsky, Xing Wei, and Y. R. Shen,
“Sum-frequency generation (SFG) vibrational spectroscopy of side alkyl chain structures of polyimide surfaces,”
J. Chem. Phys., 113 (19), 8827–8832 (2000). DOI: 10.1063/1.1318199
Masahito Oh-e, Seok-Cheol Hong, and Y. R. Shen,
“Polar ordering at an interface between an LC monolayer and a rubbed polyimide,”
J. Phys. Chem. B, 104, 7455–7461 (2000). DOI: 10.1021/jp0011138
Masahito Oh-e and Katsumi Kondo,
“Advantage in voltage-holding ratio characteristics induced by in-plane electric fields and optimization concept of liquid crystal materials for in-plane switching electro-optical effect,”
Liq. Cryst., 25 (6), 699–709 (1998). DOI: 10.1080/026782998205714
Masahito Oh-e, Masuyuki Ohta, Sukekazu Aratani, and Katsumi Kondo,
“Voltage-holding ratio characteristics and optimization of liquid crystals in an in-plane switching electro-optical effect,”
Display & imaging, Vol. 7, pp. 137 (1998). (Japanese)
Masahito Oh-e and Katsumi Kondo,
“In-plane switching electro-optical effect of nematic liquid crystals,”
EKISHO, Vol. 2 (4), pp. 303-316 (1998). (Japanese)
Masahito Oh-e, Masayuki Ohta, and Katsumi Kondo,
“Physical behavior of nematic liquid crystals using in-plane switching mode,”
Mol. Cryst. Liq. Cryst., 299, 401–406 (1997). DOI: 10.1080/10587259708042020
Sukekazu Aratani, Hagen Klausmann, Masahito Oh-e, Masuyuki Ohta, Keiichiro Ashizawa, Kazuhiko Yanagawa, and Katsumi Kondo,
“Complete suppression of color shift in in-plane switching mode liquid crystal displays with a multidomain structure obtained by unidirectional rubbing,”
Jpn. J. Appl. Phys., 36, L27–L29 (1997). DOI: 10.1143/JJAP.36.L27
Makoto Yoneya, Masuyuki Ohta, Masahito Oh-e, and Katsumi Kondo,
“Performance optimization of in-plane switching AM-LCDs by using systematic device simulations,”
Proc. SPIE, 3014, 40-46 (1997). DOI: 10.1117/12.270298
Masahito Oh-e and Katsumi Kondo,
“Quantitative analysis of cell gap margin for uniform optical properties using in-plane switching of liquid crystals,”
Jpn. J. Appl. Phys., 36, 6798-6803 (1997). DOI: 10.1143/JJAP.36.6798
Masahito Oh-e, Yoshiyuki Umeda, Masuyuki Ohta, Sukekazu Aratani, and Katsumi Kondo,
“Unusual voltage-holding ratio characteristics using in-plane switching of nematic liquid crystals,”
Jpn. J. Appl. Phys., 36 (8A), L1025–L1028 (1997). DOI: 10.1143/JJAP.36.L1025
Masahito Oh-e, Makoto Yoneya, and Katsumi Kondo,
“Switching of negative and positive dielectro-anisotropic liquid crystals using the in-plane switching mode,”
J. Appl. Phys., 82 (2), 528–535 (1997). DOI: 10.1063/1.365611
Masahito Oh-e, Makoto Yonaya, Masuyuki Ohta, and Katsumi Kondo,
“Dependence of viewing angle characteristics on pretilt angle in the in-plane switching mode,”
Liq. Cryst., 22 (4), 391–400 (1997). DOI: 10.1080/026782997209108
Masahito Oh-e and Katsumi Kondo,
“The in-plane switching of homogeneously aligned nematic liquid crystals,”
Liq. Cryst., 22 (4), 379–390 (1997). DOI: 10.1080/026782997209090
Masuyuki Ohta, Katsumi Kondo, and Masahito Oh-e,
“Wide viewing-angle displays with in-plane switching mode of nematic LCs addressed by TFTs,”
IEICE Transactions on Electronics, E79-C (8), 1069–1075 (1996).
Masahito Oh-e and Katsumi Kondo,
“Erratum: ‘‘Response mechanism of nematic liquid crystals using the in‐plane switching mode’’ [Appl. Phys. Lett. 69, 623 (1996)],”
Appl. Phys. Lett., 69 (13), 1979 (1996). DOI: 10.1063/1.118153
Masahito Oh-e and Katsumi Kondo,
“Response mechanism of nematic liquid crystals using the in-plane switching mode,”
Appl. Phys. Lett., 69 (5), 623–625 (1996). DOI: 10.1063/1.117927
Katsumi Kondo, Masuyuki Ohta, and Masahito Oh-e,
“A large-size and high-resolution TFT-LCD with ultra-wide viewing angle characteristics comparable to CRT,”
Hitachi Hyoron, 78 (1), pp. 12 (1996). (Japanese)
Katsumi Kondo, Masahito Oh-e, and Masuyuki Ohta,
“An in-plane switching mode TFT-LCD,”
Display & Imaging, Vol. 5, pp. 11 (1996). (Japanese)
Masahito Oh-e and Katsumi Kondo,
“Electro-optical characteristics and switching behavior of the in-plane switching mode,”
Appl. Phys. Lett., 67 (26), 3895–3897 (1995). DOI: 10.1063/1.115309
Masahito Oh-e, Katsumi Kondo, and Yasuhiko Kando,
“Theoretical consideration of the drop in threshold voltage at low frequencies in nematic liquid crystals,”
Liq. Cryst., 17 (1), 95–107 (1994). DOI: 10.1080/02678299408036551
Masahito Oh-e, Katsumi Kondo, and Yasuhiko Kando,
“A permittive effect on the threshold behavior at low frequencies and the drift of charge carriers with a liquid-crystalline system of cyanophenylcyclohexanes,”
Mol. Cryst. Liq. Cryst., 250, 51–62 (1994). DOI: 10.1080/10587259408028192
Hisao Yokokura, Masahito Oh-e, Katsumi Kondo, and Shuichi Oh-hara,
“Alkylene polyimides for aligning nematic liquid crystals: Anomalous odd-even effect in tilt bias angles as a function of chain length of alkylenes,”
Mol. Cryst. Liq. Cryst., 225, 253–258 (1993). DOI: 10.1080/10587259308036231
Masahito Oh-e, Masato Isogai, and Teruo Kitamura,
“X-ray studies on layer structure and bistability in ferroelectric liquid crystals,”
Liq. Cryst., 11 (1), 101–109 (1992). DOI: 10.1080/02678299208028974
Masato Isogai and Masahito Oh-e, Teruo Kitamura and Akio Mukoh,
“Electrooptical switching of ferroelectric liquid crystals in electrically distorted chevron structure,”
Mol. Cryst. Liq. Cryst., 207, 87–96 (1991). DOI: 10.1080/10587259108032090

Conference papers

Chi-Yang Yen, Shailesh Rana, Kamlesh Awasthi, Nobuhiro Ohta, and Masahito Oh-e,
“Fluorescence properties of fluorescein-labeled cellulose: Anomalously reduced radiative decay,”
Optics & Photonics Taiwan International Conference (OPTIC 2023), Paper ID: 0019 (Tainan, Taiwan, Dec. 1‒3, 2023).
Masahito Oh-e,
“Novel switching of liquid crystals for use in THz phase shifters with rapid responses discovered from the dimensional effects of electrodes,”
SPIE Photonics West 2023, 12442-1 (San Francisco, CA, USA, Jan. 28‒Feb. 2, 2023). [Invited]
Meng-Hsiang Chang, Chi-Yang Yen, and Masahito Oh-e,
“Cellulose photonics: Kinetic arrest during the drying of cellulose nanocrystal films from aqueous suspensions,”
Optics & Photonics Taiwan International Conference (OPTIC 2022), Paper ID: 0769 (Zhongli (Chungli), Taiwan, Dec. 2‒4, 2022).
Masahito Oh-e,
“Intriguing molecular alignment in display materials,”
2^nd International Conference on Nanotechnology and Engineering, Nov. 15‒16, Bangkok, Thailand (2021).(Online) [Keynote]
Masahito Oh-e,
“Advancing the a posteriori quest for deep-blue phosphorescence,”
2^nd Advanced Materials Science World Congress 2021, (Berlin, Germany, June 14‒15, 2021). (Online) [Invited]
Deng-Yun Zheng, Meng-Hsiang Chang, Ci-Ling Pan, and Masahito Oh-e,
“Effects of O₂ plasma treatments on photolithographically patterning an organic conductive material,”
Optics & Photonics Taiwan International Conference (OPTIC 2020), Paper ID: 0688 (Taipei, Taiwan, Dec. 3‒5, 2020).
Deng-Yun Zheng, Meng-Hsiang Chang, Ci-Ling Pan, and Masahito Oh-e,
“Effects of O₂ plasma treatments on photolithography for patterning PEDOT:PSS,”
2^nd IEEE Eurasia Conference on IOT, T200185 Communication and Engineering 2020 (IEEE ECICE 2020), (Yunlin, Taiwan, Oct. 23–25, 2020).

Masahito Oh-e,
“Molecular alignment and orientation in LCDs and OLEDs,”
International Conference on Laser, Optics and Photonics (Optophotonics-2020) (Kuala Lumpur, Malaysia, July 13‒14, 2020; Canceled due to the coronavirus). [Plenary talk]
Masahito Oh-e,
“Randomization and constraint of molecular alignment and orientation in vapor-deposited thin films of an organic cross-shaped molecule,”
Collaborative Conference on Materials Science and Technology (CCMST2019), (Shanghai, China, Oct. 14‒18, 2019). [Invited]
Masahito Oh-e,
“Analysis of molecular orientations of vapor-deposited organic semiconductor molecules for OLEDs: Coexistence of randomization and constraint of molecular orientation”,
18^th International Union of Materials Research Societies International Conference in Asia (IUMRS‒ICA) (Taipei, Taiwan, Nov. 5‒9, 2017). [Invited]
Masahito Oh-e,
“Anisotropic molecular orientations of cross-shaped bulky molecules observed in the bulk of a thin film,”
3^rd Asian Conference on Liquid Crystals (ACLC 2017) (Tainan, Taiwan, Feb. 13–15, 2017).
David R. Evans, Masahito Oh-e, and Mathew D. Halls,
“Theoretical calculation of charge transport properties in amorphous organic semiconductor films,”
10^th International Conference on Electroluminescence & Organic Optoelectronics (Cologne, Germany, Aug. 31–Sep. 3, 2014).
Morio Isoda, Inseon Seo, Fumito Araoka, Masahito Oh-e, Daigo Miyajima, Takuzo Aida, and Hideo Takezoe,
“Sum-frequency generation spectroscopy for the ferroelectric columnar liquid crystal: Searching the polarization switching dynamics,”
1^st Asian Conference on Liquid Crystals (Fuji, Japan, Dec. 16–18, 2012).
Hidenori Ogata, Ken Okamoto, Ayataka Endo, Masakazu Kamura, Yoshimasa Fujita, Mitsuhiro Koden, and Masahito Oh-e,
“Anisotropy in the amorphous film of cross-shaped molecules with an accompanying effect on carrier mobility,”
9^th International Conference on Electroluminescence & Organic Optoelectronics (Fukuoka, Japan, Sep. 3–7, 2012).
Tetsuji Itoh, Shigeru Aomori, Masahito Oh-e, Mitsuhiro Koden, and Katsumi Kondo,
“New oxidation-resistant organic semiconductors for thin film transistors: Synthesis and characterizations of N,N’-dialkylated dihydrodiazapentacene derivatives,”
MRS Fall Meeting (Boston, MA, USA, Nov. 28–Dec 2, 2011).
Haesik Min, Hyeon Gi Shin, Sung Soo Kim, Hyeonsik Cheong, Masahito Oh-e, and Doseok Kim,
“The surface and bulk structures of poly-(L-lactic acid) films studied by vibrational sum-frequency generation spectroscopy,”
Workshop on Innovation Cluster for Bio-Fusion Industry based on Nano Technology, (Gyeongju, Republic of Korea, Feb 8–10, 2010).
Haesik Min, Hyeon Gi Shin, Sung Soo Kim, Hyeonsik Cheong, Masahito Oh-e, and Doseok Kim,
“The surface and bulk structures of poly-(L-lactic acid) films studied by vibrational sum-frequency generation spectroscopy,”
The 6th International Conference on Advanced Materials and Devices, (Jeju, Republic of Korea, Dec 9–11, 2009).
Hyeon Gi Shin, Haesik Min, Sung Soo Kim, Sanghoon Song, Hyeonsik Cheong, Hyunjung Kim, Masahito Oh-e, and Dseok Kim,
“Surface and bulk structures of poly-(L-lactic acid) films studied by sum-frequency generation spectroscopy,”
The Optical Society of Korea 20^th Anniversary Special Meeting, (Gwanju, Republic of Korea, Oct 20–21 2009).
Masahito Oh-e, Hiroshi Yokoyama, Rajesh S. Pillai, G. J. Brakenhoff, and Michiel Müller,
“Imaging colloidal particle induced topological defects in a nematic liquid crystal by using third-harmonic generation microscopy,”
Boulder International Workshop, Light-Controlled Liquid Crystal Complex Adaptive Materials – LC2CAM, (Boulder, CO, USA, Aug.6–10, 2008).
Jin Seog Gwag, Masahito Oh-e, Makoto Yoneya, Hiroshi Yokoyama, H. Satou, and S. Itami,
“Nanoimprinting material for homeotropic liquid crystal alignment at periodic surface relief,”
22^nd International Liquid Crystal Conference (ILCC 2008) (Jeju, Republic of Korea, June 29–July 4, 2008).
Takyu Shim, Sunghyum Kim, Doseok Kim, Masahito Oh-e,
“Fluorescence enhancement of dye-doped liquid crystal by dye-induced alignment effect,”
22^nd International Liquid Crystal Conference (ILCC 2008) (Jeju, Republic of Korea, June 29–July 4, 2008).
Masahito Oh-e, Hiroshi Yokoyama, Rajesh S. Pillai, G. J. Brakenhoff, and Michiel Müller,
“Imaging colloidal particle induced topological defects in a nematic liquid crystal,”
22^nd International Liquid Crystal Conference (ILCC 2008) (Jeju, Republic of Korea, June 29–July 4, 2008).
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg, Euan Hendry, and Mischa Bonn,
“THz time-domain spectroscopy of liquid crystal and liquid crystal colloid,”
235^th ACS National Meeting (New Orleans, LA, USA, Apr. 6–10, 2008).
Masahito Oh-e,
“Probing surface and chirality of polymers and liquid crystals: Opportunities in sum-frequency vibrational spectroscopy,”
8^th Chitose International Forum on Photonics Science & Technology (Chitose, Japan, Nov. 29–30, 2007). [Invited]
Jin Seog Gwag, Masahito Oh-e, Makoto Yoneya, and Hiroshi Yokoyama,
“Advanced nanoimprinting material for liquid crystal alignment,”
The 7^th International Meeting on Information Display and the International Display Manufacturing Conference (Daegu, Republic of Korea, Aug. 27–31, 2007).
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg, Euan Hendry, and Mischa Bonn,
“Liquid crystal and liquid crystal colloid studied by THz time-domain spectroscopy,”
The 7^th Pacific Rim Conference on Lasers and Electro-Optics (CLEO Pacific Rim 2007), Paper# FH2_5 (Seoul, Republic of Korea, Aug. 26–31, 2007).
Masahito Oh-e, Hiroshi Yokoyama,
“Various surfaces of polymers for liquid crystal alignment,”
The 10^th Asian Symposium on Information Display (ASID ’07) (Singapore, Aug. 2–3, 2007). [Invited]
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg, Euan Hendry, and Mischa Bonn,
“THz time-domain spectroscopy of liquid crystal colloids,”
SPIE Photonics West 2007 (San Jose, CA, USA, Jan. 20–25, 2007). [Invited]
Masahito Oh-e,
“Detection of chirality from a helically structured polymer thin film: Sum-frequency vibrational spectroscopic study,”
232^nd ACS National Meeting (San Francisco, CA, USA, Sep. 10–14, 2006). [Invited]
Masahito Oh-e,
“Molecular orientational surface structures of polymers for liquid crystal alignment,”
The 6^th International Meeting on Information Display and the International Display Manufacturing Conference (Daegu, Republic of Korea, Aug. 23–25, 2006). [Invited]
Masahito Oh-e, Hiroshi Yokoyama, Mattijs Koeberg, Euan Hendry, and Mischa Bonn,
“Liquid crystal colloids studied by THz time-domain spectroscopy,”
21^st International Liquid Crystal Conference (ILCC 2006) (Keystone, CO, USA, July 2–6, 2006).
Masahito Oh-e, Doseok Kim, and Hiroshi Yokoyama,
“Nonlinear optical spectroscopy of polyimide surface for homeotropic liquid crystal alignment,”
American Physical Society March Meeting (APS MAR05) (Los Angeles, CA, USA, Mar. 21–25, 2005). Bulletin of the American Physical Society March Meeting, 50, 276 (2005).
Masahito Oh-e, Hiroshi Yokoyama, Shinichi Yorozuya, Kazuo Akagi, and Y. R. Shen,
“Chirality probed by sum-frequency vibrational spectroscopy for helically structured conjugated polymer thin films,”
229^th ACS National Meeting (San Diego, CA, USA, Mar. 13–17, 2005).
Masahiro Kawasaki, Shuji Imazeki, Masahiko Ando, and Masahito Oh-e,
“Bottom contact organic thin-film transistors with thiol-based SAM treatment,”
206^th Meeting of The Electrochemical Society (Honolulu, HI, USA, Oct. 3–8, 2004).
Masahito Oh-e, Yuka Tabe, and Hiroshi Yokoyama,
“Anisotropy of alkyl chains by isomerization of azobenzene: A sum-frequency vibrational spectroscopic study,”
Nonlinear Optics: Materials, Fundamentals, and Applications (NLO2004), Paper# WD14 (Waikoloa, HI, USA, Aug. 2–6, 2004).
Masahito Oh-e, Hiroshi Yokoyama, Shinichi Yorozuya, Kazuo Akagi, and Y. R. Shen,
“Chirality probed by sum-frequency vibrational spectroscopy for helically structured conjugated liquid crystalline polymers,”
20^th International Liquid Crystal Conference (ILCC 2004) (Ljubljana, Slovenia, July 4–9, 2004).
Masahito Oh-e, Doseok Kim, and Hiroshi Yokoyama,
“Sum-frequency vibrational spectroscopy of polyimide surfaces,”
16^th International Vacuum Congress (IVC-16) (Venice, Italy, June 28–July 2, 2004).
Masahito Oh-e, Hiroshi Yokoyama, Shinichi Yrozuya, Kazuo Akagi, and Y. R. Shen,
“Sum-frequency vibrational spectroscopy of helically structured conjugated polymers,”
American Physical Society March Meeting (APS MAR04) (Montreal, Canada, Mar. 22–26, 2004). Bulletin of the American Physical Society March Meeting, 49, 1415 (2004)
Masahito Oh-e, Yuka Tabe and Hiroshi Yokoyama,
“Sum-frequency vibrational spectroscopic study of azobenzene molecules on water: Anisotropy of alkyl chains by isomerization of azobenzene,”
7^th International Conference on Atomically Controlled Surfaces, Interfaces, and Nanostructures (Nara, Japan, Nov. 16–20, 2003).
Masahito Oh-e and Y. R. Shen,
“Sum-frequency vibrational spectroscopy of polymer surfaces for LC alignment,”
2^nd International Symposium of Polymer Surface Characterization (Orlando, USA, Nov. 11–13, 2002).
Masahito Oh-e and Y. R. Shen,
“Nonlinear optical spectroscopic studies of polymer surfaces for LC alignment: A photo-irradiated polyimide surface,”
19^th International Liquid Crystal Conference (ILCC 2002) (Edinburgh, UK, June 30–July 5, 2002).
Masahito Oh-e, Doseok Kim and Y. R. Shen,
“Sum-frequency vibrational spectroscopic study of a rubbed polyimide surface”,
21^st International Display Research Conference (IDRC 2001) (Nagoya, Japan, Oct. 16–19, 2001).
Masahito Oh-e, Doseok Kim and Y. R. Shen,
“Nonlinear optical spectroscopic studies of polyimide surfaces and LC adsorbates,”
IUPAC 3^rd International Congress on Analytical Sciences (Tokyo, Japan, Aug. 6–10, 2001)
Masahito Oh-e, Doseok Kim and Y. R. Shen,
“Rubbing-induced alignment of polyimide surfaces studied by sum-frequency vibrational spectroscopy,”
6^th European Conference on Liquid Crystals (Halle (saale), Germany, Mar. 25–30, 2001)
Masahito Oh-e,
“In-plane switching electro-optical effect of nematic liquid crystals,”
(Glenn H. Brown Laureate Talk)18^th International Liquid Crystal Conference (ILCC 2000) (Sendai, Japan, July 24–28, 2000). [Invited]
Masahito Oh-e, Alexander I. Lvovsky, Xing Wei and Y. R. Shen,
“Nonlinear optical studies of surface structures of rubbed polyimides and adsorbed liquid crystal monolayers,”
18^th International Liquid Crystal Conference (ILCC 2000) (Sendai, Japan, July 24–28, 2000).
Seok-Cheol Hong, Masahito Oh-e, Y. R. Shen, Jason Ge, F. W. Harris and S. Z. D. Cheng,
“Second-harmonic generation study of the surface of a rubbed side-chain polymer and liquid crystal adsorbates,”
APS March Meeting 2000 (Minneapolis, MN, USA, Mar. 20–24, 2000).
Masuyuki Ohta, Masahito Oh-e, Shigeru Matsuyama, Nobutake Konishi, Hiroyuki Kagawa and Katsumi Kondo,
“18.0-in.-diagonal super-TFTs with a fast response speed of 25 msec,”
Society for Information Display International Symposium (San Jose, CA, USA, May 16–21, 1999).
Masahito Oh-e and Katsumi Kondo,
“Evaluation and optimization methods of liquid crystal materials for in-plane switching electro-optical effect,”
17^th International Liquid Crystal Conference (ILCC 1998) (Strasbourg, France, July 19–24, 1998).
Masahito Oh-e, Yoshiyuki Umeda, Masuyuki Ohta, Sukekazu Aratani and Katsumi Kondo,
“Advantageous voltage-holding ratio characteristics using in-plane switching of nematic liquid crystals,”
4^th International Display Workshops (IDW’07) (Nagoya, Japan, Nov. 1997).
Makoto Yoneya, Masuyuki Ohta, Masahito Oh-e and Katsumi Kondo,
“Performance optimization of in-plane switching AMLCDs with systematic device simulations,”
SPIE Active Matrix Liquid Crystal Displays Technology and Applications (San Jose, CA, USA, Feb. 1997).
Katsumi Kondo, Sukekazu Aratani, Masahito Oh-e, and Masuyuki Ohta,
“Pixel design concept for super TFT-LCDs,”
17^th Internatonal Display Research Conference (Toronto, Canada, Sep. 15–19, 1997).
Sukekazu Aratani, Hagen Klausmann, Masahito Oh-e, Masuyuki Ohta, Keiichiro Ashizawa, Kazuhiko Yanagawa and Katsumi Kondo,
“Complete suppression of color shift in in-plane switching mode liquid crystal displays with a multidomain structure obtained by unidirectional rubbing,”
The Pacific Rim Conference on Lasers and Electro-Optics (Chiba (Makuhari), Japan, July 14–18, 1997).
Masahito Oh-e, Masuyuki Ohta and Katsumi Kondo,
“Physical behavior of nematic liquid crystals using in-plane switching mode,”
16^th International Liquid Crystal Conference (ILCC 1996) (Kent, OH, USA, June 24–28, 1996).
Masahito Oh-e, Msuyuki Ohta and Katsumi Kondo,
“Switching and response principles of the in-plane switching mode,”
25^th Freiburg Liquid Crystal Conference (Freiburg, Germany, Mar. 1996). [Invited]
Masuyuki Ohta, Masahito Oh-e and Katsumi Kondo,
“Development of super-TFT-LCDs with in-plane switching display mode,”
15^th International Display Research Conference (Hamamatsu, Japan, Oct. 16–18, 1995).
Masahito Oh-e, Masuyuki Ohta, Sukekazu Aratani and Katsumi Kondo,
“Principles and characteristics of electro-optical behavior with in-plane switching mode,”
15^th International Display Research Conference (Hamamatsu, Japan, Oct. 16–18, 1995).
Masahito Oh-e, Masuyuki Ohta, Katsumi Kondo and Syuichi Oh-hara,
“Relationship between display quality and cell parameters in the in-plane switching mode of nematic liquid crystals,”
15^th International Liquid Crystal Conference (ILCC 1994) (Budapest, Hungary, July 3–8, 1994).
Masahito Oh-e, Masato Isogai, Katsumi Kondo and Teruo Kitamura,
“Layer structure and bistability of ferroelectric liquid crystals on various surface conditions,”
14^th International Liquid Crystal Conference (ILCC 1992) (Pisa, Italy, June 21–26, 1992).
Masato Isogai, Masahito Oh-e,
“Electrooptical switching of ferroelectric liquid crystals in electrically distorted chevron structure,”
5^th International Topical Meeting on Optics of Liquid Crystals (Cetraro, Italy, Oct. 1–5, 1990).

Domestic conferences

Masahito Oh-e, “In-plane switching technology─Looking back on the early days of research and development─,”
Annual Meeting of Taiwan Liquid Crystal Society (TLCS 2019), National Chiao Tung University (Hsinchu), Taiwan, Dec. 20, 2019. [Invited]
Anup Kumar Sahoo，Chan-Shan Yang，Chun-Ling Yen，Deng Yun Zheng，Hung Chun Lin，Yi-Hsin Lin，Osamu Wada，Masahito Oh-e, and Ci-Ling Pan，
“利用PEDOT: PSS電極之太赫茲液晶相位調製器(Liquid crystal based terahertz phase shifter using pristine PEDOT:PSS transparent conducting film,”
2019台湾物理年會，P1-OE-063, 台湾國立交通大学（新竹），Jan 17, 2019.
Masahito Oh-e (大江昌人)，
“Analytical studies on organic materials for next generation displays –targeting LCD & OLED –,”
2017年台北國際光電大展一台灣前瞻學術專區, 南港世貿展覽館（台北），June 14–16, 2017; 光連雙月刊2017年5月‧No.129, p. 47 (2017).
David R. Evans，Mathew D. Halls，梅田時由，遠藤礼隆，大江昌人，
“パーコレーション補正ランダムウォークモデルを用いたアモルファス膜中のキャリア移動度の計算,”
有機EL討論会　第21回例会，S4-3，九州大学伊都キャンパス，2016年11月12–13日．
David R. Evans1，Mathew D. Halls，Masahito Oh-e (大江昌人)，
“パーコレーション補正ランダムウォークモデルを用いたアモルファス膜中のキャリア移動度の計算,”
第9回分子科学討論会，4D09，東京工業大学，2015年9月16–19日．
中野博史，大江昌人，
“アルカリ土類硫化物蛍光体の発光特性―第一原理計算と配位子場理論による電子状態解析―,”
第62回応用物理学会春季学術講演会，12a-A25-3，東海大学湘南キャンパス，2015年3月11–14日．
荒岡史人，磯田盛夫，大江昌人，宮島大吾，相田卓三，竹添秀男,
“赤外―可視和周波発生スペクトロスコピーで見る強誘電性カラムナー液晶の分子ダイナミクス,”
2014年日本液晶学会討論会，1B12，くにびきメッセ（松江），2014年9月8–10日．
大江昌人，
“有機EL研究開発の現状: パネルディスカッションの前に話題提供,”
第24回ファインテックジャパン，東京ビックサイト(東京) ，2014年4月17日. [Invited]
中野博史，大江昌人，
“第一原理計算を用いたアルカリ土類カルコゲナイド蛍光体の電子状態と発光特性の研究,”
第61 回応用物理学会春季学術講演会，19p-E11-11，青山学院大学相模原キャンパス，2014年3月17–20日．
大江昌人,
“有機薄膜の分子配向解析: Sum-frequency generation spectroscopy－液晶・配向膜の表面/界面から有機EL薄膜まで－,”
有機EL討論会　第17回例会，S2-2，朱鷺メッセ：新潟コンベンションセンター（新潟），2013年11月18–19日．[Invited]
尾方秀謙，岡本健，遠藤礼隆，香村勝一，藤田悦昌，向殿充浩，大江昌人，
“十字状分子MADNからなるアモルファス薄膜における分子の異方的配向とホール輸送特性,”
有機EL討論会　第15回例会，S6-4，くにびきメッセ（松江），2012年11月21–22日．
伊藤哲二，青森繁，大江昌人，向殿充浩，荒川泰彦,
“新しいα-ブラザンあるいはベンゾキサンテン骨格から構成される二量体化合物の合成および物性とFET特性,”
第23回基礎有機化学討論会，C20，京都テルサ（京都），2012年9月19–21 日．
香村勝一，伊藤哲二，青森繁，大江昌人，北村雅季，荒川泰彦,
“化学結合で積層したオリゴチオフェン積層膜と同じ分子構造を有するLB膜の分子配向の比較,”
第72回応用物理学秋季学術講演会，30-a-V15，p12-015，山形大学小白川キャンパス（山形），2011年8月29–9月2日．
大江昌人,
“液晶と配向膜の表面/界面における分子配向解析― Nonlinear Opticsをツールとして ―,”
日本学術振興会142委員会，東京理科大学（東京），2011年3月10日．[Invited]
香村勝一，青森繁，葛本恭崇，伊藤哲二，大江昌人，北村雅季，荒川泰彦,
“化学反応により積層したオリゴチオフェン分子積層膜の分子配向,”
公開シンポジウム「ナノ量子情報エレクトロニクスの進展」，P-15，p.60，東京大学（東京），2010年12月22日．
大江昌人，横山浩，Rajesh S. Pillai, Michiel Müller,
“Third-harmonic generation (THG) microscopyを用いた液晶コロイドにおけるトポロジカル欠陥のイメージング,”
第1回分子科学討論会，2C20，東北大学（仙台），2007年9月17–20日．
大江昌人，横山浩，Rajesh S. Pillai，Michiel Müller，
“Third-harmonic generation (THG) microscopyによる液晶コロイドにおけるトポロジカル欠陥のイメージング,”
2007年日本液晶学会討論会，3pC04，東京工業大学大岡山キャンパス（東京），2007年9月12–14日．
大江昌人，
“SFGスペクトロスコピーの基礎,”
分子研研究会“和周波分光を拓く分子科学の新展開”第３回SFG研究会，岡崎，2006年12月5–6日．[Invited]
大江昌人，横山浩，Mattijs Koeberg, Euan Hendry, Mischa Bonn，
“液晶コロイドのTHz time-domain spectroscopy: ネマチック液晶の高周波数誘電特性,”
分子構造総合討論会，1A09 ，グランシップ（静岡），2006年9月20–23日．
大江昌人，横山浩，Mattijs Koeberg, Euan Hendry, Mischa Bonn，
“液晶コロイドのTHz time-domain spectroscopy: ネマチック液晶の高周波数誘電特性,”
2006年日本液晶学会討論会，3D12，秋田大学手形キャンパス（秋田），2006年9月13–15日．
大江昌人，
“Sum-frequency vibrational spectroscopy of probing surfaces and chirality,”
第２回SFG研究会（RCMSワークショップ），名古屋大学（名古屋），2005年3月22–23日．[Invited]
大江昌人，横山浩，萬谷慎一，多田直樹，赤木和夫，M. A. Belkin，Y. R. Shen，
“Sum-frequency vibrational spectroscopyによるカイラリティープロービング：らせん状共役系ポリマー膜のchiral信号の検出,”
分子構造総合討論会，3B14，広島国際会議場（広島），2004年9月27–30日．
大江昌人，横山浩，Doseok Kim，
“垂直配向ポリイミド膜の表面構造：A sum-frequency vibrational spectroscopic study,”
2004年日本液晶学会討論会，1D05，名古屋大学（名古屋），2004年9月26–28日．
大江昌人，横山浩，Y. R. Shen，
“Sum-frequency vibrational spectroscopyによるポリマー表面の構造,”
日本表面科学会東北支部講演会，O-1，東北大学（仙台），2004年3月4–5日．
大江昌人，横山浩，萬谷慎一，赤木和夫，
“らせん状共役系を有する液晶性ポリマーのカイラリティ－プロービング：A sum-frequency vibrational spectroscopic study (2),”
2003年日本液晶学会討論会，3A14，青森市文化会館（青森），2003年10月15–17日．
大江昌人，Seok-Cheol Hong，Y, R, Shen，
“Orientations of phenyl sidegroups and LC molecules on a rubbed polystyrene surface: A sum-frequency vibrational spectroscopic study (1),”
2003年日本液晶学会討論会，3A13，青森市文化会館（青森），2003年10月15–17日．
大江昌人，横山浩，萬谷慎一，赤木和夫，
“らせん状共役ポリマーのSum-Frequency Vibrational Spectroscopy,”
分子構造総合討論会，2Dp14，京都テルサ（京都），2003年9月24–27日．
大江昌人，
“Sum-frequency vibrational spectroscopy of polymer surfaces for liquid crystal alignment,”
第１回SFG研究会（名古屋大学物質科学国際研究センターワークショップ「和周波混合分光法」），名古屋大学（名古屋），2003年3月13–14日．[Invited]
大江昌人，
Y. R. Shen，“A sum-frequency vibrational spectroscopic study of polyimide: Photo-induced bond breaking at polymer surfaces,”
2002年日本液晶学会討論会，2A01，奈良県新公会堂，2002年10月9–11日．
大江昌人，Y. R. Shen，
“Sum-frequency vibrational spectroscopyを用いた光照射したポリイミド表面の解析,”
分子構造総合討論会，2C10，神戸国際会議場（神戸），2002年10月1–4日．
大江昌人，Y. R. Shen，
“Sum-frequency vibrational spectroscopy of polyimide: Surface anisotropy from photo-induced bond breaking at polymer surfaces,”
日本物理学会2002年秋季大会，9aSM-12，中部大学（名古屋），2002年9月6–9日．
大江昌人，Y. R. Shen，
“Rubbing-induced surface structures of polyimide and its interaction with an LC monolayer studied by sum-frequency vibrational spectroscopy: Orientations of imide CO & side alkyl chains,”
第6回日本化学液晶化学研究会シンポジウム，つくば，2002年6月11日．
大江昌人，Doseok Kim，Y. R. Shen，
“Rubbed polyimide surface studied by sum-frequency vibrational spectroscopy: Rubbing-induced anisotropy probed by imide CO stretch”，
第19回固体・表面光化学討論会，大阪，2001年11月．
大江昌人，Doseok Kim，Y. R. Shen，
“Rubbed polyimide surface studied by sum-frequency vibrational spectroscopy: Rubbing-induced anisotropy probed by imide CO Stretch and a rubbed polyimide,”
2001年日本液晶学会液晶討論会，3B01，大宮ソニックシティー（さいたま），2001年9月25–27日．
大江昌人，Doseok Kim，Y. R. Shen，
“Sum-frequency vibrational spectroscopy of a rubbed polyimide surface,”
分子構造総合討論会，札幌サンプラザ（北海道），1A14，2001年9月24–27日．
大江昌人，Seok-Cheol Hong，Y. R. Shen，
“Polar ordering at an interface between an LC monolayer and a rubbed polyimide,”
第18回固体・表面光化学討論会，三重，2000年11月．
大江昌人，Seok-Cheol Hong，Y. R. Shen，
“Polar ordering at an interface between an LC monolayer and a rubbed polyimide,”
2000年日本液晶学会液晶討論会，くにびきメッセ（島根），2000年10月25–27日．
米谷慎，岩崎紀四郎，冨岡安，大江昌人，近藤克己，
“IPS TFT-LCD の特性解析: セルギヤツプマージン拡大方法の検討,”
1998年日本液晶学会液晶討論会，2C14，千里ライフサイエンスセンター（大阪），1998年10月13–15日．
大江昌人，近藤克己，
“In-Plane Switching方式におけるセルギャップマージン解析,”
1998年日本液晶学会液晶討論会，3-5b，千里ライフサイエンスセンター（大阪），1998年10月13–15日．
大江昌人，
“In-Plane Switching方式液晶ディスプレイ,”
第29回有機デバイス研究会，静岡大学（静岡），1998年7月3日．[Invited]
大江昌人，梅田啓之，太田益幸，荒谷介和，近藤克己，
“In-Plane Switching方式における液晶の電圧保持特性,”
第23回液晶討論会，2AA08，東京工業大学，1997年9月25–27日．
米谷慎，太田益幸，大江昌人，近藤克己，
“IPS方式TFTーLCDのデバイスシミュレーション,”
第23回液晶討論会，2AA07，東京工業大学，1997年9月25–27日．
米谷慎，太田益幸，大江昌人，近藤克己，
“インプレーンスイッチングTFTーLCDのデバイスシミュレーション,”
応用物理学会応用電子物性分科会主催　応用電子分科会研究会，東京，1997年7月23日．
大江昌人，近藤克己，
“In-Plane Switching方式における液晶の駆動原理,”
第22回液晶討論会，3A14，九州大学，1996年10月5–7日．
近藤克己，太田益幸，大江昌人，
“インプレーンスイッチングモードを用いたTFTーLCDの構造と特性,”
第43回応用物理学会関係連合講演会，東洋大学朝霞校舎，1996年3月26–29日．
大江昌人，近藤克己，神藤保彦，
“ネマチック液晶の低周波におけるしきい値電圧降下の要因,”
第20回液晶討論会，1G506，名古屋大学，1994年10月1–3日．
大江昌人，近藤克己，神藤保彦，
“低周波数領域におけるしきい値電圧と液晶内の電荷輸送及び界面分極の関係,”
第19回液晶討論会，3D03，東京大学，1993年9月20–22日．
磯貝正人，大江昌人，北村輝夫，
“強誘電性液晶のスイッチング過程における層変形,”
第39回応用物理学会春季年会，日本大学理工学部習志野校舎，1992年3月28–31日．
磯貝正人，大江昌人，北村輝夫，
“強誘電性液晶の層構造と電界誘起変形,”
第52回応用物理学会秋季年会，岡山大学・岡山理科大学，1991年10月9–12日．
大江昌人，磯貝正人，北村輝夫，
”強誘電性液晶の電界誘起層構造,”
第17回液晶討論会，4F307，北海道大学，1991年9月23–25日．

Seminar presentations

Day 1: “Liquid crystals and displays” and Day 2: “Intriguing molecular alignment in display materials,” in the intensive course for graduate students organized by the Department of Power Mechanical Engineering, National Tsing Hua University (Hsinchu, Taiwan, Apr. 19 and 26, 2023).
“Quest for deep-blue phosphorescence for OLEDs,” in the summer course for graduate students in the 9th International Summer Course on Nano Material Discovery “Electronic Materials” organized by the Department of Applied Chemistry, National Yang Min Chiao Tung University, Online (Hsinchu, Taiwan, June 27‒29, 2022).
Day 1: “Liquid crystals and displays” and Day 2: “Intriguing molecular alignment in display materials,” in the intensive course for graduate students organized by the Department of Power Mechanical Engineering, National Tsing Hua University (Hsinchu, Taiwan, Apr. 20 and 27, 2022).
“Intriguing Molecular Alignment in Display Materials,” delivered at the DAC Colloquium of the Department of Applied Chemistry, National Yang Min Chiao Tung University (Hsinchu, Taiwan, Apr. 1, 2022).
“In-plane switching technology for liquid crystal displays: Electro-optical effect and its evolution and development,” in the seminar for graduate students in the 11th HiSEP Seminar of Saitama University, Online (Saitama, Japan, Jan. 14, 2021).
“In-plane switching technology—In-plane switching liquid crystal electro-optical effect and its evolution and development,” in the Topical Seminar of the Department of Photonics, National Chiao Tung University (Hsinchu, Taiwan, Nov. 22, 2019).
“In-plane switching technology—In-plane switching liquid crystal electro-optical effect and its evolution and development,” in the Department Seminar of the Department of Physics, National Chung Hsin University. (Taichung, Taiwan, Nov. 8, 2019).
“In-plane switching technology—In-plane switching liquid crystal electro-optical effect and its evolution and development,” Seminar for international students at National Tsing Hua University (Hsinchu, Taiwan, Oct. 4, 2018).
“Analysis of molecular alignment of vapor-deposited organic semiconductor molecules: Coexistence of randomization and constraint of molecular orientation,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, July 24, 2018).
“Analytical studies for development of liquid crystal displays and organic light-emitting diodes,” seminar at the Department of Physics, Academia Sinica (Taipei, Taiwan, July 19, 2017).
“Analytical studies for development of liquid crystal displays and organic light-emitting diodes,” Condensed Matter Seminar at the Department of Physics, National Tsing Hua University (Hsinchu, Taiwan, May 2, 2017).
“Analytical studies for development of organic optoelectronic devices—LCD & OLED—: Overview of my studies to date with research plan for the future,” seminar at the Display Technology Center, Industrial Technology Research Institute (Hsinchu, Taiwan, Jan. 18, 2017).
“Analytical studies for development of organic optoelectronic devices—LCD & OLED—,” Institute of Photonics Technologies Seminar at National Tsing Hua University (Hsinchu, Taiwan, Nov. 11, 2016).
“Rapid estimation of charge carrier mobility in amorphous organic materials using percolation corrected random-walk model,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, May 1, 2015).
“Luminescent properties of alkali-earth sulfide phosphors: Electronic state analysis by first principles calculation and ligand field theory,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, May 1, 2015).
“First principles calculation on electronic states and fluorescence properties of alkali-chalcogenide phosphors,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, May 3, 2014).
“Anisotropy in the amorphous film of cross-shaped molecules with an accompanying effect on carrier mobility,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, May 2, 2013).
“Theory and calculations on phosphorescent organometallic compounds: Aiming at deep-blue and highly efficient phosphorescence,” seminar at Sharp Laboratories of America (Camas, WA, USA, July 5, 2012).
“Theory and calculations on phosphorescent organometallic compounds: Aiming at deep-blue and highly efficient phosphorescence,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, May 4, 2012).
“Surfaces and interfaces for liquid crystals and alignment layers: Nonlinear optical spectroscopic studies,” and “R&D Strategies for innovative materials in Materials & Devices Technology Laboratories,” seminar at Sharp Laboratories of America (Camas, WA, USA, Dec. 5, 2011).
“Surface nonlinear opticsをツールとした分子配向解析の理論と実践—液晶と配向膜の表面/界面—,” 日産化学 (船橋、Dec. 2, 2011).
“Some studies on organic electronics,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, May 6, 2011).
“Imaging colloidal particle induced topological defects in a nematic liquid crystal by THG microscopy,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, May 1, 2010).
“Overview of recent studies: From LCDs to surfaces, chirality and colloids in liquid crystals,” Seminar at University of California, Berkeley (Berkeley, CA, USA, Sep. 4, 2009).
“Probing chirality from a helically structured polymer thin film by sum-frequency vibrational spectroscopic study,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, July 6, 2009).
“Overview of recent studies: From LCDs to surfaces and colloids in liquid crystals,” seminar at the Institute of Materials Research and Engineering (Singapore, Aug. 1, 2007).
“Overview of recent studies: From LCDs to surfaces and colloids in liquid crystals,” seminar at the Department of Photonics, National Chiao Tung University (Hsinchu, Taiwan, July 30, 2007).
“Overview of recent studies: From LCDs to surfaces and colloids in liquid crystals,” seminar at the Hong Kong University of Science and Technology (Hong Kong, July 27, 2007).
“LCD配向膜の表面構造,” チッソ石油化学 (五井，Dec. 13, 2006).
“THz time-domain spectroscopy of liquid crystal colloids: High-frequency dielectric relaxation of liquid crystals,” seminar at University of California, Berkeley (Berkeley, CA, USA, Sep. 8, 2006).
“Sum-frequency vibrational spectroscopy for probing chirality from a helically structured polymer thin film,” seminar at National Institute of Standard and Technology (Gaithersburg, MD, USA, Sep. 5, 2006).
“Probing chirality from a helically structured polymer thin film by sum-frequency vibrational spectroscopic study,” seminar at the Department of Physics, Sogang University (Seoul, Republic of Korea, Aug. 25, 2006).
“Nonlinear optical spectroscopy for polymers: Probing surface structures and chirality,” Philips Research Laboratory Seminar (Eindhoven, The Netherlands, Nov. 24, 2005).

Books

Deng-Yun Zheng, Meng-Hsiang Chang, Ci-Ling Pan and Masahito Oh-e,
“Effects of O₂ plasma treatments on the photolithographic patterning of PEDOT:PSS,”
In: Alessio Bosio, editor. Surfaces, Interfaces and Coatings Technology. Hyderabad, India: Vide Leaf. 2021 (April, 2021) DOI: 10.37247/SICT.1.2021.5.
Masahito Oh-e,
“In-plane switching technology,”
In: Shoichi Ishihara, Shunsuke Kobayashi, and Yasuhiro Ukai, editors. High-Quality liquid crystal displays and smart devices, Vol. I Chapter 2, pp.31–54. London, UK: The Institution of Engineering and Technology (March, 2019) DOI: 10.1049/pbcs068f_ch2.
Masahito Oh-e,
“Evaluation of liquid crystal displays from materials to devices,”
In: Akira Kinbara, editor. Handbook of Thin Film Characterization Technology, Vol.III Chapter 4, pp.521–544. Tokyo, Japan: Techno System (2012).

Patents

Among many filed patents, leading granted-patents are listed below:

Oh-e, Masahito (大江昌人), 鄭登云, “テラヘルツ電磁波に用いる液晶デバイスおよびシステム (Liquid crystal device and system for THz Electromagnetic Waves),” Japan Patent Application 2022-062220, filed Apr. 4, 2022, granted Sep. 4, 2023, and Japan Patent P7356187 issued Oct. 4, 2023.
Oh-e, Masahito (大江昌人), 鄭登云, “液晶装置 (Liquid crystal device),” Taiwan Patent Application 110147985, filed Dec. 21, 2021 and granted June 1, 2023, and Taiwan Patent I804124 issued June. 1, 2023.
Oh-e, Masahito (大江昌人), 鄭登云, “液晶装置 (Liquid crystal device),” China Patent Application 202210029246.6, filed Jan. 11, 2022
Oh-e, Masahito and Deng-Yun Zheng, “Liquid crystal device and system for THz electromagnetic waves,” US Patent Application 17/522,911, filed Nov. 10, 2021, granted Nov. 2, 2022, and US Patent 11,550,192 B1 issued Jan. 10, 2023.
Yoshimasa Fujita, Masahito Oh-e, and Tetsuji Itoh, “Transition metal complex and organic light-emitting element using same, color-converting light-emitting element, light-converting light-emitting element, organic laser diode light-emitting element, dye laser, display device, illumination device, and electronic equipment,” US Patent 9,640,107, filed Nov. 22, 2012, and issued May 2, 2017.
Masahito Oh-e, Yoshimasa Fujita, Yuki Kobayashi, Ken Okamoto, Hidenori Ogata, and Makoto Yamada, “Light-emitting element, display and display device,” US Patent 8,796,719, filed Sep. 01, 2011, and issued Aug. 5, 2014.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 8,704,988, filed March 5, 2013, and issued April 22, 2014.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 8,427,613, filed June 3, 2011, and issued Apr. 23, 2013.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 8,154,698, filed June 3, 2011, and issued Apr. 10, 2012.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani,and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions. US Patent 7,956,973, filed Dec. 30, 2009, and issued June 7, 2011.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,724,334, filed Mar. 12, 2008, and issued May 25, 2010.
Yuka Utsumi, Katsumi Kondo, Ikuo Hiyama, Osamu Itoh, Masahito Oh-e, Kazuhiko Yanagawa, and Keiichiro Ashizawa, “Active matrix type liquid crystal display apparatus,” US Patent 7,684,005, filed Oct. 2, 2008 and issued Mar. 23, 2010.
Yuka Utsumi, Katsumi Kondo, Ikuo Hiyama, Osamu Itoh, Masahito Oh-e, Kazuhiko Yanagawa, and Keiichiro Ashizawa, “Active matrix type liquid crystal display apparatus,” US Patent 7,433,012, filed Dec. 13, 2005 and issued Oct. 7, 2008.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,345,729, filed June 15, 2006, and issued Mar. 18, 2008.
Yuka Utsumi, Katsumi Kondo, Ikuo Hiyama, Osamu Itoh, Masahito Oh-e, Kazuhiko Yanagawa, and Keiichiro Ashizawa, “Active matrix type liquid crystal display apparatus,” US Patent 7,209,211, filed July 30, 2003 and issued Apr. 24, 2007.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,158,202, filed Mar. 28, 2003, and issued Jan. 2, 2007.
Masahito Oh-e, Katsumi Kondo, and Masuyuki Ohta, “Active matrix type liquid crystal display apparatus,” US Patent 7,112,355, filed Dec. 3, 2004 and issued Sep. 26, 2006.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,095,470, filed Mar. 28, 2003, and issued Aug. 22, 2006.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,088,414, filed Mar. 28, 2003, and issued Aug. 8, 2006.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,079,212, filed Mar. 28, 2003, and issued July 18, 2006.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,046,325, filed Aug. 11, 2003, and issued May 16, 2006.
Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 7,046,324, filed Sep. 10, 2002, and issued May 16, 2006.
Masahito Oh-e, Shigeru Matsuyama, Kenkichi Suzuki, and Masaaki Matsuda, “Polarized UV light irradiation method for liquid crystal display device,” US Patent 6,924,860, filed Apr. 15, 2004 and issued Aug. 2, 2005.
Masahito Oh-e, Katsumi Kondo, and Masuyuki Ohta, “Active matrix type liquid crystal display apparatus,” US Patent 6,849,309, filed May 15, 2003 and issued Feb. 1, 2005.
Masahito Oh-e and Katsumi Kondo, “Liquid crystal display device,” US Patent 6,844,907, filed Dec. 16, 2002 and issued Jan. 18, 2005.
Masahito Oh-e, Katsumi Kondo, and Masuyuki Ohta, “Active matrix liquid crystal display apparatus,” US Patent 6,830,787, filed July 14, 1999 and issued Dec. 14, 2004.
Yuka Utsumi, Katsumi Kondo, Ikuo Hiyama, Osamu Itoh, Masahito Oh-e, Kazuhiko Yanagawa, and Keiichiro Ashizawa, “Active matrix type liquid crystal display apparatus including liquid crystal layer having different thicknesses at portions where different colors of light are transmitted,” US Patent 6,621,538, filed May 18, 2000 and issued Sep. 16, 2003.

Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 6,545,658, filed Apr. 25, 2001, and issued Apr. 8, 2003.

Masahito Oh-e and Katsumi Kondo, “Liquid crystal display device,” US Patent 6,504,594, filed July 24, 2001 and issued Jan. 7, 2003.

Hidehiro Sonoda, Masahito Oh-e, Hiroaki Asuma, and Shigeru Matsuyama, “Liquid crystal display device having a spacer,” US Patent 6,433,852, filed Dec. 3, 1999 and issued Aug. 13, 2002.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with wide viewing angle characteristics,” US Patent 6,417,906, filed Dec. 12, 2000 and issued July 9, 2002.

Masahito Oh-e and Katsumi Kondo, “Liquid crystal display device with substantial elimination of residual image,” US Patent 6,300,994, filed June 21, 1999 and issued Oct. 9, 2001.

Masahito Oh-e, Shigeru Matsuyama, Kenkichi Suzuki, and Masaaki Matsuda, “Liquid crystal display device having orientation film oriented by light,” US Patent 6,295,110, filed Nov. 4, 1998 and issued Sep. 25, 2001.

Masuyuki Ohta, Kazuhiko Yanagawa, Kazuhiro Ogawa, Keiichiro Ashizawa, Masahiro Yanai, Nobutake Konishi, Katsumi Kondo, Masahito Oh-e, Sukekazu Aratani, and Hagen Klausmann, “In-plane field type liquid crystal display device comprising liquid crystal molecules with more than two kinds of reorientation directions,” US Patent 6,266,116, filed Sep. 26, 1996, and issued July 24, 2001.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with double-layered structure for gate line and/or data line,” US Patent 6,201,590, filed Nov. 19, 1999 and issued Mar. 13, 2001.

Yuka Utsumi, Katsumi Kondo, Ikuo Hiyama, Osamu Itoh, Masahito Oh-e, Kazuhiko Yanagawa, and Keiichiro Ashizawa, “Active matrix type liquid crystal display apparatus with light source color compensation,” US Patent 6,137,560, filed Oct. 23, 1996 and issued Oct. 24, 2000.

Masuyuki Ohta, Masahiko Ando, Katsumi Kondo, Masahito Oh-e, and Kazuhiko Yanagawa, “Parallel field liquid crystal display with counter electrodes connected to the scan lines,” US Patent 6,108,065, filed Oct. 28, 1998 and issued Aug. 22, 2000.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “LCD with parallel field having counter electrode(s) at least equal to 1/2 width of video signal line. US Patent 6,064,460, filed May 15, 1998 and issued May 16, 2000.

Masahito Oh-e, Katsumi Kondo, and Masuyuki Ohta, “Parallel field active matrix type liquid crystal display using liquid crystal having particular electrical properties,” US Patent 6,011,606, filed Mar. 17, 1995 and issued Jan. 4, 2000.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with wide viewing angle characteristics,” US Patent 5,978,059, filed May 15, 1998 and issued Nov. 2, 1999.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with parallel field having particular spacing and width,” US Patent 5,956,111, filed May 15, 1998 and issued Sep. 21, 1999.

Masahito Oh-e, Shigeru Matsuyama, and Masaaki Matsuda, “Active matrix liquid crystal display device method for checking the alignment ability of a photo-alignment layer,” US Patent 5,949,509, filed May 8, 1998 and issued Sep. 7, 1999.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with wide viewing angle characteristics,” US Patent 5,929,958, filed May 15, 1998 and issued July 27, 1999.

Masahito Oh-e and Katsumi Kondo, “Liquid crystal display device with at least one of insulating layer and orienting film,” US Patent 5,914,761, filed Dec. 19, 1996 and issued June 22, 1999.

Masahito Oh-e, Katsumi Kondo, Masuyuki Ohta, and Shuichi Ohara, “Active matrix type liquid crystal display apparatus,” US Patent 5,910,271, filed Aug. 16, 1996 and issued June 8, 1999.

Masuyuki Ohta, Masahiko Ando, Katsumi Kondo, Masahito Oh-e, Kazuhiko Yanagawa, “Parallel field liquid crystal display with counter electrodes connected to the scan lines,” US Patent 5,831,707, filed Aug. 24, 1995 and issued Nov. 3, 1998.

Masuyuki Ohta, Kazuhiko Yanagawa, Katsumi Kondo, and Masahito Oh-e, “Active matrix type LCD having light shield layers and counter electrodes made of the same material,” US Patent 5,781,261, filed July 8, 1996 and issued July 14, 1998.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with wide viewing angle characteristics,” US Patent 5,754,266, filed Mar. 4, 1996 and issued May 19, 1998.

Masahito Oh-e and Katsumi Kondo, “Liquid crystal display device having the electric field parallel to the substrates,” US Patent 5,600,464, filed Sep. 20, 1994 and issued Feb. 4, 1997.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with wide viewing angle characteristics,” European Patent EP1202108, filed Mar. 15, 1996 and issued July 7, 2010.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device with wide viewing angle characteristics,” European Patent EP0732612, filed Mar. 15, 1996 and issued Oct. 12, 2005.

Masahito Oh-e, Katsumi Kondo, and Masuyuki Ohta, “Active matrix type liquid crystal display apparatus,” European Patent EP0673986, filed Mar. 17, 1995 and issued May 26, 2004.

Masahito Oh-e, Katsumi Kondo, Masuyuki Ohta, and Shuichi Ohara, “Active matrix type liquid crystal display apparatus,” European patent EP0667555, filed February 13, 1995 and issued August 20, 2003.

Masahito Oh-e and Katsumi Kondo, “Liquid crystal display device having the electric field parallel to the substrates,” European Patent EP0644452, filed September 20, 1994 and issued July 30, 2003.

Masahito Oh-e, Shigeru Matsuyama, and Kenkichi Suzuki, “Liquid crystal display device and polarizing light irradiation method and device thereof,” China Patent CN1231432, filed Nov. 5, 1998 and issued Oct. 13, 1999.

Katsumi Kondo, Masuyuki Ohta, and Masahito Oh-e, “Liquid crystal display apparatus,” China Patent CN1168478, filed Sep. 10, 1996 and issued Dec. 24, 1997.

Masahito Oh-e, Katsumi Kondo,and Masuyuki Ohta, “Active matrix type liquid crystal display apparatus,” China Patent CN1126348, filed Mar. 17, 1995 and issued July 10, 1996.

Masahito Oh-e and Katsumi Kondo, “Liquid crystal display device,” China Patent CN1106544, filed Sep. 19, 1994 and issued Aug. 9, 1995.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device,” Korean Patent KR100413584, filed May 18, 2002 and issued Jan. 3, 2004.

Masuyuki Ohta, Kazuhiko Yanagawa, Keiichiro Ashizawa, Yasuyuki Mishima, Kazuhiro Ogawa, Masahito Oh-e, Masahiro Yanai, and Katsumi Kondo, “Liquid crystal display device having wide viewing angle characteristics,” Korean Patent KR100390283, filed May 2, 1998 and issued Oct. 17, 2003.