Continuous domain in-plane switching liquid crystal display
US7414689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2005 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Apr 27, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/122
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An IPS liquid crystal display (200) of a preferred embodiment of the present invention includes a first substrate (201), a second substrate (202), and liquid crystal molecules interposed therebetween. A plurality of gate lines (211) and data lines (212) are formed at the first substrate, thereby defining a plurality of pixel regions. A pixel electrode (233), a common electrode (243) and a TFT (220) are provided in each pixel region, the pixel electrode and the common electrode having a same curved shape. Because the pixel and common electrodes of have a same curved shape with smooth bends, when a voltage is applied, disclination of the liquid crystal molecules does not occur, and the contrast ratio of the IPS LCD is unimpaired. Furthermore, the electric field generated by them is a smooth continuum of multiple domains, and the IPS LCD provides equally fine visual performance at various different viewing angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.