Display panel
US11424429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2020 |
| Grant date | Aug 23, 2022 |
| Priority date | — |
| Expiry date | Nov 30, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
A display panel includes a plurality of display elements arranged in a display area, an opening, a multi-layer including a first layer and a second layer disposed on the first layer, and a groove. Each display element includes a pixel electrode, an emission layer disposed on the pixel electrode, and an opposite electrode disposed on the emission layer. The display area surrounds the opening. The groove is located between the opening and the display area. The groove has an undercut cross-section that is concave in a thickness direction of the multi-layer, the second layer includes a pair of tips that protrude toward a center of the groove, and a length of each tip is less than about 2μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.