Display device
US11871608B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2019 |
| Grant date | Jan 9, 2024 |
| Priority date | — |
| Expiry date | Nov 17, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/879
Abstract
A display device having an improved light-extraction efficiency and a reduced color sense variation according to a viewing angle includes a pixel electrode on a substrate, an insulating layer defining an emission area via an opening that covers edges of the pixel electrode and exposes a center portion of the pixel electrode, a first light extraction pattern on the pixel electrode, the first light extraction pattern having a side surface inclined at a first angle, and a second light extraction pattern surrounding the first light extraction pattern on an outer portion of the first light extraction pattern, the second light extraction pattern having a side surface inclined at a second angle that is less than the first angle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.