Display device including test circuit and electronic apparatus having the display device
US7570072B2 · kind B2 · utility
15Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2007 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/029
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
To provide a display device having a test circuit with high accuracy for testing in the step after a counter substrate is attached and before shipping, and to provide a display device having a correction circuit inside the display device, for the case where a defect occurs. A pixel circuit operated by a gate line and a source line, a first wiring formed at the same time as the gate line, a second wiring formed at the same time as the source line, and a test circuit of detecting a defect of the pixel circuit by using potentials of the first wiring and the second wiring are provided over a substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.