Method and apparatus for inspecting display device
US11769430B2 · kind B2 · utility
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1References
15Claims
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Key dates
| Filing date | Jun 2, 2022 |
| Grant date | Sep 26, 2023 |
| Priority date | — |
| Expiry date | Jun 2, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/10
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for inspecting a display device (which includes a pixel electrode and a touch sensor overlapping the pixel electrode) includes: adjusting an impedance value of a variable impedance circuit of an inspection apparatus according to a model of the display device; driving a power source generator of the inspection apparatus; supplying a pixel voltage to the pixel electrode through an output terminal connected to the variable impedance circuit; driving the touch sensor; and detecting a defect related to the pixel electrode based on sensing signals output from the touch sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.