Method for manufacturing optical element for backlight unit and optical element and optical element array manufactured by method
US9559268B2 · kind B2 · utility
2Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2015 |
| Grant date | Jan 31, 2017 |
| Priority date | — |
| Expiry date | Jun 11, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49117
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing an optical device for a back light unit includes forming a metal ingot by adhering insulating layers between metal plates. The metal ingot is cut in a vertical direction to create original substrates each with insulating layer portions in parallel with intervals therebetween. Solder resist is deposited on at least one of a top surface and bottom surface of an original substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.