Color luminous device
US6844670B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 2002 |
| Grant date | Jan 18, 2005 |
| Priority date | — |
| Expiry date | Feb 11, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/35
Abstract
An organic EL element (100) emits light containing blue, green and red components. A blue color filter (420) transmits only the blue component. A green-converting member (340) converts the blue component to the green component, and a green color filter (440) transmits only the green component. A red-converting member (360) converts the blue component and the green component to the red component, and a red color filter (460) transmits only the red component. Since the respective color filters (420, 440 and 460) block unnecessary color components, the reproducibility of the respective color is improved. Since the luminescence of the organic EL element (100) contains the green component and the red component besides the blue component, white balance becomes good. It is therefore possible to provide a color luminous device from which improved light rays in the three primary colors can be emitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.