Aligning-assembling method for color wheel
US7218464B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2005 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | May 24, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B7/006
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A coating method for a color filter, including the steps of: coating a first photoresist layer on a substrate; forming at least a aligning pattern and a first color film pattern on the first photoresist layer by exposure and development; coating a first dye on the aligning pattern and the first color film pattern; stripping the first photoresist layer; coating a second photoresist layer on the substrate, wherein the aligning pattern and the first color film pattern are formed on the substrate; aligning position by using the aligning pattern of the substrate; forming a second color film pattern on the second photoresist layer by exposure and development; coating a second dye on the second color film pattern; and stripping the second photoresist layer. The invention also discloses an aligning-assembling method for a color wheel, which includes the color filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.