Color display device having white sub-pixels and embedded light reflective layers
US8237360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 2009 |
| Grant date | Aug 7, 2012 |
| Priority date | — |
| Expiry date | Jan 2, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/38
Abstract
Disclosed is a color display device containing plural pixels on a substrate, each pixel is composed of plural sub-pixels which emit lights different in wavelength in the visible range and a white sub-pixel, the plural sub-pixels and the white sub-pixel each have a white organic electroluminescence layer interposed between an optically semitransparent reflection layer and a light reflection layer, the optical distance between the optically semitransparent reflection layer and the light reflection layer in each of the plural sub-pixels forms a resonator having a distance for resonating emitted light, and the optical distance between the optically semitransparent reflection layer and the light reflection layer in the white sub-pixel is longer than the maximum optical distance between the optically semitransparent reflection layer and the light reflection layer in each of the plural sub-pixels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.