Optical waveguide display with movable actuators which cause light leakage in waveguide at each display elements to provide gradation in a display image by temporal subfield modulation
US6323833A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1998 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Mar 23, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G3/2022
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a display-driving device for driving a display comprising an optical waveguide plate for introducing light thereinto, and a driving section provided opposingly to one plate 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-driving device comprising a row electrode-driving circuit for selecting the actuator elements at least in one row unit, a column electrode-driving circuit for outputting a data signal-to the selected row, and a signal control circuit for performing gradation control for the respective driving circuits in accordance with the temporal modulation system. Accordingly, it is possible to realize a simplified arrangement of a peripheral circuit system…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.