Display device having a colored layer disposed between a displacement transmitting section and an optical waveguide plate
US6028978A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1997 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Dec 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S385/901
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Disclosed is a display device comprising an optical waveguide plate for introducing light thereinto, and a driving section provided opposingly to the back surface of the optical waveguide plate and including a number of actuator elements arranged corresponding to a large number of picture elements, for displaying, on the optical waveguide plate, a picture image corresponding to an image signal by controlling leakage light at a predetermined portion of the optical waveguide plate by controlling displacement action of each of the actuator elements in a direction to make contact or separation with respect to the optical waveguide plate in accordance with an attribute of the image signal to be inputted; the display device further comprising a displacement-transmitting section for transmitting the displacement action of the actuator element to the optical waveguide plate, wherein a plate member of the displacement-transmitting section is constructed by a white scattering element, and a color filter is formed at a position corresponding to each of the actuator elements, on the back surface of the optical waveguide plate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.