Driving circuit for detecting line short defects
US8248356B2 · kind B2 · utility
59Cited by
5References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 24, 2008 |
| Grant date | Aug 21, 2012 |
| Priority date | — |
| Expiry date | Jun 22, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/12
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
For detecting line short defects in a display panel, a driving circuit has a plurality of shift registers, a plurality of diode modules, and at least one power supply. Each shift register has an output port for outputting a driving signal sequentially. The diode modules are coupled to the output ports of the shift registers accordingly. The power supply is coupled to the diode modules and forward biases the diode modules to bypass the shift registers during at least a part of a period of detecting line short defects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.