Display color of a display panel and display device having a color filter substrate with quantum dots and black matrix
US9971189B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 11, 2013 |
| Grant date | May 15, 2018 |
| Priority date | — |
| Expiry date | Jan 28, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2202/36
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The disclosure discloses a color filter substrate, a display panel and a display device. The display panel includes a plurality of pixels, each of which includes a plurality of sub-pixels of various colors. The color filter substrate includes a base substrate, a plurality of black matrixes formed on the base substrate, a plurality of opening regions disposed between the back matrixes and corresponding to the sub-pixels in a one-to-one correspondence relationship, and a color filter layer filled in each of the opening regions; the color filter layer is doped with quantum dots which can generate light after excited, color of which is the same as the color of the corresponding sub-pixels. The color filter substrate improves purity of light transmitted through the color filter layer and in turn improves display color gamut of the display device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.