Transflective liquid crystal display device with asymmetry reflective electrode having a transparent portion facing a main viewing angle
US6380995B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1999 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Aug 5, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133555
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A semitransparent reflective type liquid crystal display device is disclosed which comprises: first and second substrates facing to each other and sandwiching a liquid crystal layer therebeween; a backlight on an outer surface of the first substrate; an uneven layer being on an inner surface of the first substrate and having an uneven surface; a reflecting electrode being along the uneven surface and having a transparent portion substantially facing in a main viewing angle direction which is defined as a direction where the user's eye is mainly positioned. The transparent portion is in the inclined surface facing in the main viewing angle direction. Accordingly, when operating as a reflective type LCD, the quantity of the main external light which is incident on the transparent portion is decreased to improve the light reflectance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.