Method and device for detecting display substrate
US11594162B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 6, 2021 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Jan 6, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/029
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present disclosure provides a method for detecting a display substrate and a device for detecting a display substrate. The method includes: exciting a threshold voltage of a driving transistor in each pixel driving circuit in the display substrate, so that the threshold voltage of the driving transistor with a shifted threshold voltage is further shifted; inputting a detection signal to each pixel driving circuit in the display substrate, where the detection signal is a signal enabling the pixel driving circuit to operate normally; and judging whether the display substrate is normal or not according to the voltage output by each pixel driving circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.