Organic light emitting device and manufacturing method thereof
US9536931B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 13, 2012 |
| Grant date | Jan 3, 2017 |
| Priority date | — |
| Expiry date | Dec 4, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/3026
Abstract
An organic light emitting diode (OLED) display with an improved light efficiency and a method of manufacturing the OLED display are disclosed. The OLED display includes a substrate, an insulation layer on the substrate and having concave portions, first electrodes on the insulation layer, pixel defining layers (PDLs) on the insulation layer and configured to define the first electrodes into pixels, organic light emitting layers on the first electrodes as defined by the pixels, and a second electrode on the organic light emitting layers. Each of the concave portions includes a bottom surface and inclined parts. Each of the first electrodes is on the bottom surface and the inclined parts of one of the concave portions. Embossings are on a part of a surface of the PDLs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.