Sight line detector, display unit, view finder and unit and camera with the same display unit
US5873003A · kind A · utility
50Cited by
13References
73Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1997 |
| Grant date | Feb 16, 1999 |
| Priority date | — |
| Expiry date | Oct 21, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2213/025
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a liquid crystal unit having an on-chip photodetector. On a transparent substrate are laid down a metallic wiring, an n-type a-Si, an a-SiGe, and a p-type a-Si successively, an insulating film is formed, and then a transparent electrode is formed to have a light detection region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.