Image display
US7088058B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2004 |
| Grant date | Aug 8, 2006 |
| Priority date | — |
| Expiry date | Jun 1, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0646
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An image display device which has a display element that optically modulates an incident light for displaying an image. A lamp is a light source of the incident light to the display element. A lamp driver drives the lamp. A lamp power level calculator calculates a driving power level of the lamp corresponding to a level of an input video signal. A lamp temperature controller controls a lamp temperature depending on changes in the input signal from the lamp power level calculator so as to change the lamp temperature within a predetermined range in response to fluctuations of the input video signal. This image display device can further include a projection lens for projecting and displaying images formed in the display element on a screen.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.