Light modulation device, exposing device and display unit
US6219170A · kind A · utility
7Cited by
2References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 1999 |
| Grant date | Apr 17, 2001 |
| Priority date | — |
| Expiry date | Jul 12, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/015
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A light modulation device incorporating: a semiconductor layer 3 formed on the upper surface of a lower transparent electrode 2 and made of an n-type semiconductor material; and an upper transparent electrode 5 formed on the upper surface of the semiconductor layer 3 through an insulating layer 4, wherein an electric field is applied vertically such that the upper transparent electrode 5 is negative and the lower transparent electrode 2 is positive to deplete carriers of the n-type semiconductor layer 3 so as to change at least either one of reflectance of light or adsorbance of light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.