Display substrate and display device including the same comprising first and second column spacers that protrude directly from a black matrix pattern
US8873018B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2011 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Nov 30, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/136236
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A display substrate includes a substrate on which a first pixel area including a first light-blocking region, and a second pixel area adjacent to the first pixel area and including a second light-blocking region are defined, an insulating layer in the first and second light-blocking regions, a black matrix pattern layer on the insulating layer, a first column spacer in the first light-blocking region and protruding from the black matrix pattern layer, and a second column spacer in the second light-blocking region and protruding from the black matrix pattern layer. A height of a top surface of the first column spacer is different from a height of a top surface of the second column spacer, where the heights are taken with respect to the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.