LED transfer device comprising mask and LED transferring method using the same
US11222797B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 31, 2019 |
| Grant date | Jan 11, 2022 |
| Priority date | — |
| Expiry date | Dec 31, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/0364
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light-emitting diode (LED) transfer device is provided. The LED transfer device includes a transfer assembly configured to move a first substrate, on which a plurality of LEDs are provided, above a second substrate, a laser light source configured to emit a laser beam toward the first substrate, a mask that is disposed between the first substrate and the laser light source and has a plurality of openings that are configured to be selectively exposed and blocked and a processor configured to control the transfer assembly to move the first substrate to a predetermined position and selectively rotate the first substrate, and control the mask to expose and block the plurality of openings corresponding to the plurality of LEDs to be transferred from the first substrate to the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.