Displacement-designed color filter structure and method of forming the same
US7349045B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 24, 2004 |
| Grant date | Mar 25, 2008 |
| Priority date | — |
| Expiry date | Nov 18, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133784
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention provides a color filter structure and a forming the same method. The structure comprises a transparent substrate, a black matrix and a plurality of color regions separated by the black matrix. The black matrix grid is formed by a plurality of horizontal black matrix strips crossing a plurality of vertical black matrix strips. These color regions are formed by red, green or blue color resin forming in corresponding matrix grids. In each matrix grid, the resin is positioned to cover a larger area on an adjacent vertical black matrix strip than to cover an area of the other adjacent vertical black matrix strip. The structure can prevent the problem of corner image sticking in a frame of the liquid crystal display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.