Liquid crystal display driver including test pattern generating circuit
US7567092B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 28, 2007 |
| Grant date | Jul 28, 2009 |
| Priority date | — |
| Expiry date | May 25, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2360/18
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A liquid crystal display (LCD) driver including a normal mode circuit, a test pattern generating circuit, a selection circuit, and a timing controller. The normal mode circuit generates a normal mode signal related to a normal image data writing operation of an LCD. The test pattern generating circuit generates a test mode signal related to a test image data writing operation of the LCD. The selection circuit selects one of the normal mode signal and the test mode signal. The timing controller includes a memory storing image data that constructs a normal image pattern or a test image pattern displayed on an LCD panel of the LCD in response to an output signal of the selection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.