Color filter structures for electronic devices with color displays
US9645436B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2014 |
| Grant date | May 9, 2017 |
| Priority date | — |
| Expiry date | Jan 5, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/32
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display may have a color filter layer and a thin-film transistor layer. A liquid crystal layer may be located between the color filter layer and the thin-film transistor layer. The color filter layer may have an array of color filter elements on a transparent substrate. The array of color filter elements may include more than three colors. Colored photoimageable polymer layers may be combined to form some of the color filter elements. The color filter may have cyan, magenta, and yellow color filter elements each formed from a respective single layer of cyan, magenta, and yellow polymer and may have blue elements formed by overlapping cyan and magenta polymer, green elements formed by overlapping cyan and yellow polymer, and red elements formed by overlapping magenta and yellow polymer. Filters with white elements may also be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.