Wide-viewing-angle LCD controlled by a lateral electric field

Shin Tahata; Akira Tsumura; Masaya Mizunuma; Akira Tamatani; Yasuhiro Morii; Masayuki Fujii; Fumio Matsukawa

doi:10.1117/12.271388

11 April 1997 Wide-viewing-angle LCD controlled by a lateral electric field

Shin Tahata, Akira Tsumura, Masaya Mizunuma, Akira Tamatani, Yasuhiro Morii, Masayuki Fujii, Fumio Matsukawa

Proceedings Volume 3015, Liquid Crystal Materials, Devices, and Applications V; (1997) https://doi.org/10.1117/12.271388
Event: Electronic Imaging '97, 1997, San Jose, CA, United States

Abstract

With the aim of developing a wide viewing angle liquid crystal display (LCD), we are trying to apply in-plane switching (IPS) mode, in which liquid crystal molecules are switched by a lateral electric field, to TFT-LCD. We have studied the detailed relationship between the electro- optical properties and the various panel conditions. From these results, we specified the panel conditions, such as plus 10.4 dielectric anisotropy of liquid crystal material, 3.5 micrometer panel gap and 8 micrometer electrode spacing, to fabricate the IPS mode TFT panel. We have achieved the IPS mode TFT color panel that possessed not only wide viewing angle characteristics over 80 degrees with no reversed image but also a fast response time 50 ms, a low driving voltage compatible with ordinary twisted nematic (TN) mode TFT panel and a fine white balance, (x,y) equals 0.32, 0.34).

Citation Download Citation

Shin Tahata, Akira Tsumura, Masaya Mizunuma, Akira Tamatani, Yasuhiro Morii, Masayuki Fujii, and Fumio Matsukawa "Wide-viewing-angle LCD controlled by a lateral electric field", Proc. SPIE 3015, Liquid Crystal Materials, Devices, and Applications V, (11 April 1997); https://doi.org/10.1117/12.271388

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