Color filter, display device having such color filter, electro-optic device having such color filter, electronic instrument having such color filter
US7755719B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2007 |
| Grant date | Jul 13, 2010 |
| Priority date | — |
| Expiry date | Sep 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133555
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color filter has a light-transmissive substrate, a reflecting layer formed on the back substrate and provided with openings, boundary layers and formed on the reflecting layer, and a plurality of coloring layers enclosed by the boundary layers. A transparent coat layer is provided between the reflecting layer and the boundary layers. A step is formed between the openings and the transparent coat layer. The coloring layers are formed by applying the droplets of colored fluid to the openings first, and then to the transparent coat layer. The difference in color saturation of the color filter in a reflective display mode and a transmissive display mode is reduced. Also, a liquid material is appropriately applied to the color filter, to enhance color balance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.