Mask of display device and display device fabricated with the mask
US9709842B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2015 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Oct 16, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13625
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A mask of a display device for forming a light shielding unit, which includes a first column spacer, a second column spacer, a light shielding layer, and a first groove, is capable of reducing the number of tones therein, the mask including: a first portion corresponding to the first column spacer; a second portion having substantially a same light transmittance as that of the first portion and corresponding to the second column spacer; a third portion corresponding to the light shielding layer; a fourth portion corresponding to a pixel region; and a fifth portion disposed between the first portion and the third portion to correspond to the first groove and having a light transmittance substantially the same as that of the fourth portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.