Light emitting device with LED stack for display and display apparatus having the same
US11289461B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2020 |
| Grant date | Mar 29, 2022 |
| Priority date | — |
| Expiry date | Apr 4, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8586
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light emitting device for a display including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, electrode pads disposed below the first LED sub-unit, and a filler disposed between the electrode pads, in which the electrode pads include a common electrode pad electrically connected in common to the first, second, and third LED sub-units, and first, second, and third electrode pads connected to the first, second, and third LED sub-units, respectively, the first, second, and third LED sub-units are independently drivable, light generated in the first LED sub-unit is configured to be emitted to the outside of the light emitting device through the second and third LED sub-units, and light generated in the second LED sub-unit is configured to be emitted to the outside through the third LED sub-unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.