Vertically aligned (VA) liquid crystal display device
US6724452B1 · kind B1 · utility
Assignee
Inventors
- Arihiro Takeda
- Katsufumi Ohmuro
- Yoshio Koike
- Shingo Kataoka
- Takahiro Sasaki
- Takashi Sasabayashi
- Hideaki Tsuda
- Hideo Chida
- Makoto Ohashi
- Kenji Okamoto
- Hisashi Yamaguchi
- Minoru Otani
- Makoto Morishige
- Noriaki Furukawa
- Tsuyoshi Kamada
- Yoshinori Tanaka
- Atuyuki Hoshino
- Shougo Hayashi
- Hideaki Takizawa
- Takeshi Kinjou
- Makoto Tachibanaki
- Keiji Imoto
- Tadashi Hasegawa
- Hidefumi Yoshida
- Hiroyasu Inoue
- Yoji Taniguchi
- Tetsuya Fujikawa
- Satoshi Murata
- Manabu Sawasaki
- Tomonori Tanose
Key dates
| Filing date | Jun 12, 1998 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jun 12, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/10
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A vertical alignment mode liquid crystal display device having an improved viewing angle characteristic is provided. The liquid crystal display device uses a liquid crystal having a negative anisotropic dielectric constant, and orientations of the liquid crystal are vertical to substrates when no voltage is applied, almost horizontal when a predetermined voltage is applied, and oblique when an intermediate voltage is applied. At least one of the substrates includes a structure as domain regulating means, and inclined surfaces of the structure operate as a trigger to regulate azimuths of the oblique orientations of the liquid crystal when the intermediate voltage is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.