Detection device and detection method of a GOA circuit of a display panel
US10311764B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jul 17, 2015 |
| Grant date | Jun 4, 2019 |
| Priority date | — |
| Expiry date | Oct 25, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0267
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A detection device of a GOA circuit of a display panel includes a signal supply unit for supplying a test signal to the GOA circuit; an acquisition unit for determining whether each of the GOA units in the GOA unit group of the GOA circuit has an output signal, if there is an output signal, acquiring the output signal of each of the GOA units in the GOA unit group; wherein part of the GOA units in the GOA circuit constitute the GOA unit group, the GOA unit group at least includes an initial GOA unit and a distal GOA unit of the GOA circuit; a processing unit for determining whether the GOA circuit is abnormal based on the acquired output signal of each of the GOA units in the GOA unit group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.