Video memory device for color-sequential-type displays
US5710604A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 9, 1996 |
| Grant date | Jan 20, 1998 |
| Priority date | — |
| Expiry date | Feb 9, 2016 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N5/907
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A field emission device (10) includes a video memory device (12) that receives video data in parallel for each of three colors red, green, and blue. The video memory device (12) provides the video data in color sequential manner to a controller (14). The controller (14) provides appropriate control and data signals in response to the video data to drive a field emission device display (22). The video memory device has a first storage area (30) for a first color (red), a second storage area (32) for a second color (green), and a third storage area for a third color (blue). The second storage area (32) has capacity to store all of the second color of a frame, the first storage area (30) is two-thirds the size of the second storage area (32), and the third storage area (34) is one-third larger than the second storage area (32). The different sizes of the respective storage areas allows for 100% use of memory space without waste. Simultaneous writing into and reading from each storage area is performed in such a manner as to not lose any of the video data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.