Chiplet display with optical control
US8081177B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2009 |
| Grant date | Dec 20, 2011 |
| Priority date | — |
| Expiry date | Aug 7, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2370/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display device having a display substrate defining an optical waveguide for transporting light carrying pixel information; a chiplet disposed over the display substrate, having a chiplet substrate separate from the display substrate, a photosensor responsive to light from the optical waveguide at the selected control wavelength for providing the pixel information, a selection circuit responsive to the pixel information for providing a control signal, and a drive circuit responsive to the control signal, wherein the chiplet is adapted to receive the transported light; an optical transmitter for transmitting the pixel information from the controller as light at the selected control wavelength into the optical waveguide, and a display optical element located in or over the display area responsive to the drive circuit for providing light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.