Liquid crystal display device with orientation control window
US6590628B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 4, 2001 |
| Grant date | Jul 8, 2003 |
| Priority date | — |
| Expiry date | Feb 7, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/121
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The response speed of liquid crystal is enhanced by reducing a distance d between a longer side (42) of a display electrode and a linear portion (51) of an orientation control window (50). On the other hand, a larger orientation control window (50) (corresponding to a smaller distance d) results in undesirable decrease in contrast of the liquid crystal. Further, the effect of increase in response speed is diminished when the distance d is smaller than the range of 25 &mgr;m to 30 &mgr;m. Therefore, the distance d is preferably in the range of 25 &mgr;m to 30 &mgr;m, and the window (50) preferably has a width of 7 &mgr;m. An LCD configured to satisfy the above conditions allows improvement in contrast and response speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.