Pixel unit and method of manufacturing the same, light emitting device and display device
US9911795B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2015 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Oct 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/1201
Abstract
The present invention discloses a pixel unit, which comprises a pixel defining layer defining a pixel region, a first electrode within a central area of the pixel region, an organic-light-emitting-display-device functional layer formed within the pixel region and on the first electrode, and a second electrode formed on the organic-light-emitting-display-device functional layer, an area of a bottom plane of the organic-light-emitting-display-device functional layer being larger than that of an upper surface of the first electrode. The pixel defining layer comprises first and second pixel defining portions having ring-shaped structures, the first pixel defining portion has an inner side surface defining the pixel region, and the second pixel defining portion has an outer side surface in contact with the inner side surface of the first pixel defining portion, and is disposed around the first electrode. The first pixel defining portion has a thickness greater than the second pixel defining portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.