Full color organic electroluminescence display device
US7833633B2 · kind B2 · utility
9Cited by
27References
16Claims
0Family size
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Key dates
| Filing date | Jul 29, 2004 |
| Grant date | Nov 16, 2010 |
| Priority date | — |
| Expiry date | May 22, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24479
Abstract
Disclosed is a full color organic electroluminescence display device, comprising a substrate; a first electrode; organic film layers including red, green and blue emission layers and an electron transporting layer; and a second electrode. The thickness of the electron transporting layer, which is preferably formed as a common layer, is different in the red and green emission regions from that in the blue emission region so that the device has an excellent purity of color and improved luminous efficiency of red and green colors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.