Array substrate and display apparatus
US9898964B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 29, 2014 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | May 4, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/13
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There are provided an array substrate and a display apparatus. The array substrate comprises a voltage driving circuit (1) for driving display pixels to display images, a current sensing circuit (2), and further comprises test pixels (3), a current comparison circuit (4), and a voltage compensation circuit (5), wherein the current sensing circuit (2) is connected to the test pixels (3) and the current comparison circuit (4), and the current comparison circuit (4) is connected to the voltage compensation circuit (5); the current comparison circuit (4) compares the current value of the current sensed by the current sensing circuit and flowing through the test pixels (3) with a set threshold, and outputs the comparison result to the voltage compensation circuit (5); and the voltage compensation circuit (5) compensates for the driving voltage of the voltage driving circuit (1) when the current value is smaller than the set threshold. The array substrate can compensate for the current of the display pixels to avoid occurrence of the pixel degradation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.