Color filter substrate for liquid crystal display device and method for fabricating the same
US7557893B2 · kind B2 · utility
3Cited by
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18Claims
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Key dates
| Filing date | Dec 29, 2006 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Aug 6, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13396
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color filter substrate includes a black matrix on a transparent insulating substrate, the blacking matrix defining a pixel area, color filters in the pixel area, an overcoating layer over the black matrix and the color filters, the overcoating layer having a plurality of grooves, a plurality of column spacers on the overcoating layer, and a plurality of ball spacers in the grooves of the overcoating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.