Projection system based on self emitting display panel
US8845109B2 · kind B2 · utility
Inventor
Key dates
| Filing date | Nov 21, 2008 |
| Grant date | Sep 30, 2014 |
| Priority date | — |
| Expiry date | Mar 31, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/3138
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A projection system based on self emitting display panels is described, in which the projection technology involves organic/inorganic electroluminescent display panels with spatially separated color segments. The color pictures are shown in three spatially separate segments. A color combination mechanism, such as dichroic mirrors, are used to merge the three color pictures to a color picture. One of the advantages of the present invention is that only the on state pixel is driven to a bright state that uses energy. The off state pixel need not be driven to a bright state and therefore the energy consumption is virtually nothing. Another advantage is that the system does not require a separate light source and display panel. Therefore the projection system can be made very compact, which is extremely useful for portable projection systems.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.