Method of manufacturing color filter
US6033813A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 12, 1998 |
| Grant date | Mar 7, 2000 |
| Priority date | — |
| Expiry date | Jun 12, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/201
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a method of manufacturing a color filter using a photoresist containing a dye in a large amount, which is capable of enhancing optical and mechanical characteristics of the color filter and improving the workability. The method includes the steps of: coating a surface of a base with a positive type photoresist containing a dye in an amount of 10 to 50 wt %, and processing the photoresist by pattern-exposure and development to form a dye containing photoresist layer having a specific pattern; and hardening the dye containing photoresist layer to form specific color filter elements; wherein the hardening step includes a step of heating the photoresist layer while letting the photoresist layer be irradiated with ultraviolet light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.