Display driving circuit
US8699803B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2011 |
| Grant date | Apr 15, 2014 |
| Priority date | — |
| Expiry date | Jul 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/16
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The display driving circuit includes: an OD (OverDrive) calculation circuit operable to generate an OD driving signal for improving the response characteristic of a display device according to display image data; a drive-output circuit operable to supply an OD driving signal to the display device; and a compression circuit operable to store compressed display data in a memory. The compression circuit includes a DCT calculation module operable to execute DCT (Discrete Cosine Transform) of display image data, and an entropy coding module operable to execute variable length entropy coding of DCT conversion display data. Preferably, the display driving circuit further includes a decompression circuit operable to supply an OD calculation circuit with display data resulting from decompression of compressed display data read out the memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.