Test circuit adapted in a display panel of an electronic device
US8138781B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Dec 31, 2008 |
| Grant date | Mar 20, 2012 |
| Priority date | — |
| Expiry date | Sep 14, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A test circuit adapted in a display panel of an electronic device is provided. The test circuit is to test the pixel array function of the display panel, wherein the test circuit comprises: a plurality of test signal lines, a plurality of test signal transmitters, a plurality of gate lines and at least one static electricity protection device. The test signal lines receive a plurality of corresponding test signals respectively. The test signal transmitters comprises a plurality test signal transmitter groups comprising at least one transmitter, wherein each transmitter group corresponds to a test signal line and connects the test signal line and the to pixel array. Each gate line connects to the gate of the at least one transmitter. The static electricity protection device is placed between two of the gate lines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.