Organic light-emitting display apparatus having cavity between protection layer and edge of pixel electrode
US12150334B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2021 |
| Grant date | Nov 19, 2024 |
| Priority date | — |
| Expiry date | Feb 6, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/80515
Abstract
A thin film transistor is disposed on a substrate. A via insulating layer having a via hole covers the thin film transistor. A pixel electrode is disposed on the via insulating layer and electrically connected to the thin film transistor through the via hole. A first protection layer surrounds the pixel electrode. A pixel-defining layer covers an edge region of the pixel electrode and at least a portion of the first protection layer. The pixel-defining layer includes an opening through which an upper surface of the pixel electrode is exposed. An opposite electrode faces the pixel electrode. An intermediate layer is disposed between the pixel electrode and the opposite electrode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.