Color filter for a liquid crystal display and a liquid crystal display using the same
US6759172B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 17, 2003 |
| Grant date | Jul 6, 2004 |
| Priority date | — |
| Expiry date | Jan 17, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/0007
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present invention relates to a color filter for a liquid crystal display and a liquid crystal display using the same, and more particularly to a color filter for a liquid crystal display comprising a pixel area, a black matrix, and a transparent overcoating film, wherein the transparent overcoating film comprises a thermosetting polymer obtained by mixing a) polyamic acid having siloxane terminal groups; and b) an epoxy compound having 1 to 4 epoxy groups, and a liquid crystal display using the same.The color filter for a liquid crystal display of the present invention comprises a transparent overcoating film having a wide pattern formation margin of a transparent electrode and superior heat resistance, light resistance, and transmissivity. When applied to a liquid crystal display, this color filter can offer a liquid crystal display, particularly ITO PVA mode liquid crystal display with good physical properties and is capable of realizing a wide view angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.