Gradation control device, optical display device, gradation control program, optical display device control program, method of controlling gradation and method of controlling optical display device
US7683919B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2005 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Jan 6, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0235
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a projection-type display device 1, a display control device 2 that controls a first DMD 50 and a second DMD 70 is composed by comprising an interface circuit 2a, a mirror device drive circuit 2b for controlling the driving of the micromirrors of second DMD 50, a mirror device drive circuit 2c for controlling the driving of the micromirrors of second DMD 70, a CPU 2d that controls computations and the entire system based on a control program, a ROM 2e that contains the control program of CPU 2d and so forth in a predefined area, and a RAM 2f for containing data read from ROM 2e and so forth and computation results required for the computation process of CPU 2d.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.