Color filter and color reflective display device with the same
US8130437B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 26, 2009 |
| Grant date | Mar 6, 2012 |
| Priority date | — |
| Expiry date | Sep 12, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color filter including a substrate, a plurality of pixel units and a transparent electrode layer is provided. The substrate has a plurality of pixel regions. Each pixel region has a plurality of first sub-pixel regions and a second sub-pixel region. Each pixel unit is disposed in one of the pixel regions corresponding thereto and includes a plurality of and a white filter film. Each color filter film is disposed in one of the first sub-pixel regions corresponding thereto and the white filter film is disposed in the second sub-pixel region. Since the area of the white filter film is larger than the area of each color filter film, the color filter has high light-transmittance. The transparent electrode layer is disposed on the pixel units. Furthermore, a color reflective display device with the color filter is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.