Liquid crystal display with patterned retardation films
US5499126A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 1993 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Dec 2, 2013 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/07
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A multi-colored pixel for a twisted nematic liquid crystal display including red, green, and blue subpixels, wherein each subpixel includes a pair of substrates, a pair of polarizers, opposing electrodes, and a color personalized retardation film which compensates for the different wavelength of each color. The personalized retardation films of the different color subpixels results in elimination of the multi-gap approach and substantially eliminates the problem of different color leakages at different viewing angles, including normal. Also, one polymer based element, preferably a polyimide, functions as both a color filter and a retardation film in certain embodiments of this invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.