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Proceedings Paper

Wide-viewing-angle LCD controlled by a lateral electric field
Author(s): Shin Tahata; Akira Tsumura; Masaya Mizunuma; Akira Tamatani; Yasuhiro Morii; Masayuki Fujii; Fumio Matsukawa
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Paper 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).

Paper Details

Date Published: 11 April 1997
PDF: 7 pages
Proc. SPIE 3015, Liquid Crystal Materials, Devices, and Applications V, (11 April 1997); doi: 10.1117/12.271388
Show Author Affiliations
Shin Tahata, Mitsubishi Electric Corp. (Japan)
Akira Tsumura, Mitsubishi Electric Corp. (Japan)
Masaya Mizunuma, Mitsubishi Electric Corp. (Japan)
Akira Tamatani, Mitsubishi Electric Corp. (Japan)
Yasuhiro Morii, Mitsubishi Electric Corp. (Japan)
Masayuki Fujii, Mitsubishi Electric Corp. (Japan)
Fumio Matsukawa, Mitsubishi Electric Corp. (Japan)

Published in SPIE Proceedings Vol. 3015:
Liquid Crystal Materials, Devices, and Applications V
Ranganathan Shashidhar, Editor(s)

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