Color filter and method for preparing the same, method for preparing alignment mark for spacer, and method for detecting position accuracy
US9946109B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 13, 2015 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Nov 13, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/133519
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The present application discloses a color filter, comprising: a substrate; a black matrix layer formed on the substrate; color film layers formed on at least one first sub-pixel opening area and a plurality of second sub-pixel opening areas on the substrate; wherein the size of the first sub-pixel opening area is smaller than the size of the second sub-pixel opening area; the size of the color film layer on the first sub-pixel opening area is smaller than the size of the color film layer on the second sub-pixel opening area; a flat layer formed on the color film layer; an alignment mark formed on the flat layer and located at a designated position around the first sub-pixel opening area; a spacer layer formed on the flat layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.