Display panel and display device
US10985224B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 27, 2019 |
| Grant date | Apr 20, 2021 |
| Priority date | — |
| Expiry date | Dec 27, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided is a display panel having a display area including a first display area and a second display area. The display panel includes: a substrate; an array layer; a display layer including light-emitting elements each including an anode, a light-emitting layer and a cathode that are sequentially stacked; the light-emitting elements comprises first light-emitting elements and second light-emitting elements; a state switching layer located at a side of the display layer facing away from a display surface of the display panel and located in the first display area, wherein in a direction perpendicular to the display panel, the state switching layer overlaps the first light-emitting elements; the state switching layer is switchable between a first state and a second state, and the state switching layer has a smaller light transmittance in the first state than in the second state; and an optical element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.