LED unit for display and display apparatus having the same
US11527513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Dec 13, 2022 |
| Priority date | — |
| Expiry date | Nov 4, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/851
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A light emitting device for a display including a plurality of pixel regions defined between at least one separation region disposed between the pixel regions, and a barrier disposed in the separation region, in which each of the pixel regions includes a first LED stack, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, and electrode pads electrically connected to the first, second, and third LED stacks, the electrode pads comprising a common electrode pad, a first electrode pad, a second electrode pad, and a third electrode pad, the common electrode pad is connected to the first, second, and third LED stacks, the first, second, and third electrode pads are connected to the first, second, and third LED stacks, respectively, and the first, second, and third LED stacks are configured to be independently driven using the electrode pads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.