Electro-optical device and electronic device
US6689492B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2000 |
| Grant date | Feb 10, 2004 |
| Priority date | — |
| Expiry date | Jun 2, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
An object of the present invention is to provide an EL display device, which has a high operating performance and reliability. A third passivation film 45 is disposed under an EL element 203 which comprises a pixel electrode (anode) 46, and EL layer 47 and a cathode 48, to make a structure in which heat generated by the EL element 203 is radiated. Further, the third passivation film 45 prevents alkali metals within the EL element 203 from diffusing into the TFTs side, and prevents moisture and oxygen of the TFTs side from penetrating into the EL element 203. More preferably, heat radiating effect is given to a fourth passivation film 50 to make the EL element 203 to be enclosed by heat radiating layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.