Display device
US11852854B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 6, 2021 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Oct 6, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/40
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An embodiment of a display device includes a substrate, a first light-emitting element, and a light control layer. The substrate includes a display area and a peripheral area adjacent to the display area, and the display area includes a light-emitting area and a light-blocking area. The first light-emitting element is disposed in the light-emitting area on the substrate and emits a first light having a first wavelength range. The light control layer is disposed on the first light-emitting element, and defines an opening exposing a portion of the light-emitting area. The light control layer includes a photochromic material such that in operation a second light having a second wavelength range different from the first wavelength range applied to the light control layer discolors the light control layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.