Display driver and electro-optical device
US7206004B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Aug 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0275
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A comb-tooth drive is realized by a display driver which drives data lines. The display driver includes a gray-scale bus to which gray-scale data is supplied corresponding to an arrangement order of the data lines, first and second clock lines to which a first or second shift clock is supplied, a first and second shift registers which shift signals in first and second shift directions based on first and second shift clocks, first and second data latches which latch the gray-scale data based on the shift output of the first and second shift registers, a data line driver circuit which drives the data lines based on latch data of each data latch, and a clock switch circuit which selectively outputs the first and second shift clocks based on a given mode setting signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.