Processes for the production of electro-optic displays, and color filters for use therein
US9199441B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 2008 |
| Grant date | Dec 1, 2015 |
| Priority date | — |
| Expiry date | Sep 21, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24802
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Processes are provided for depositing multiple color filter materials on a substrate to form color filters. In a first process, the surface characteristic of a substrate is modified by radiation so that a flowable form of a first color filter material will be deposited on a first area, and converted to a non-flowable form. A second color filter material can then be deposited on a second area of the substrate. In a second process, first and second color filter materials are deposited on separate donor sheets and transferred by radiation to separate areas of the substrate. A third process uses flexographic printing to transfer the first and second color filter materials to the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.