Self-light emitting display device for improving light extraction efficiency and increasing life span
US10825872B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2019 |
| Grant date | Nov 3, 2020 |
| Priority date | — |
| Expiry date | Sep 28, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/331
Abstract
A self-light emitting display device comprises at least one pixel comprising a first region, a second region and a third region; a blue light emitting diode disposed in the at least one pixel and configured to emit blue light; partitions disposed over the blue light emitting diode and spaced apart from one another, the partitions defining the first region, the second region and the third region; a color conversion pattern disposed over the blue light emitting diode and including a red color converting unit disposed between the partitions in the first region and configured to convert the blue light into red light and a green color converting unit disposed between the partitions in the second region and configured to convert the blue light into green light; and a selective transmission layer configured to transmit the blue light and to reflect the green light and the red light and comprising a first selective transmission region corresponding to the first and second regions, wherein the first selective transmission region includes a first bottom portion disposed between the color conversion pattern and the blue light emitting diode, and a first wall portion disposed between the color…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.