Display contrast
US9728692B2 · kind B2 · utility
2Cited by
0References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2016 |
| Grant date | Aug 8, 2017 |
| Priority date | — |
| Expiry date | Dec 12, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/854
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Display devices with improved display contrast and methods of manufacturing the display devices. Some embodiments include a method of manufacturing a light emitting diode (LED) array. The method includes forming two mesa areas on a substrate, where a trench is defined between the two mesa areas. A pixel and a N-bus formation is formed on each of the two mesa areas to create a first LED and a second LED separated by the trench between the two mesa areas. At least a portion of the trench is filled with a non-transparent or substantially non-transparent polymeric material that absorbs light emitted from the first and second LEDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.