Display substrate, test method for the same and display device
US12223866B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 28, 2022 |
| Grant date | Feb 11, 2025 |
| Priority date | — |
| Expiry date | Sep 28, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2354/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A display substrate, a test method for the display substrate and a display device are provided. The display substrate includes a base substrate, a touch detection circuit layer and a pixel driving circuit layer. The display substrate includes a display region and a non-display region surrounding the display region. The touch detection circuit layer includes a driving signal line and a dummy electrode line arranged side by side in the display region and insulated from each other, and both the driving signal line and the dummy electrode line extend from the display region to the non-display region. The non-display region is provided with a plurality of test pads including a first pad electrically connected to the driving signal line and a second pad electrically connected to the dummy electrode line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.