Light-to-light conversion method, display unit using the same, and light-to-light conversion element incorporated therein
US5299042A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 30, 1991 |
| Grant date | Mar 29, 1994 |
| Priority date | — |
| Expiry date | May 30, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/134336
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A display unit which can be used with various sources of information includes a light-to-light conversion element composed of first and second stripe electrodes arranged to jointly form a matrix electrode, and a photoconductive layer and a light modulation layer disposed between the first and second stripe electrodes, the impedance of the photoconductive layer changes with information written to the light-to-light conversion element. The photoconductive layer is irradiated with a linear light beam deflected in a direction to intersect first stripe electrode, while at the same time successive pieces of information to be inputted to corresponding picture elements are supplied to respective stripe electrode elements of the first stripe electrode. With the use of the matrix electrode, information can be written to and read out from the light-to-light conversion element at a higher response rate with high resolution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.