Method and apparatus for coupling light-emitting elements with light-converting material
US9034674B2 · kind B2 · utility
2Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2012 |
| Grant date | May 19, 2015 |
| Priority date | — |
| Expiry date | Feb 27, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0361
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
Light-emitting elements such as LEDs are associated with light-converting material such as phosphor and/or other material. A donor substrate comprising the light-converting and/or other material is suitably placed relative to a target substrate associated with the light-emitting elements. A laser or other energy source is then used to transfer the light-converting and/or other material in a pattern via writing or masking from the donor substrate to the target substrate in accordance with the pattern. Addressability and targetability of the transfer process facilitates precise patterning of the target substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.