Test method and test device for touch screen

A technology of touch screen and test method, applied in static indicator, error detection/correction, input/output process of data processing, etc.
CN106782244BInactive Publication Date: 2020-11-13BOE TECH GRP CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
BOE TECH GRP CO LTD
Publication Date
2020-11-13
Estimated Expiration
Not applicable · inactive patent

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Abstract

A touch display screen testing method and a touch display screen testing device are provided. The method includes: applying a direct current signal to a gate driving circuit of the touch display screen to turn on gate electrodes of the touch display screen simultaneously, to detect a display defect of the touch display screen, in a first testing stage of an electric performance testing process at a Cell stage of a touch display screen.
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Description

technical field

[0001] The invention relates to the technical field of liquid crystal touch screens, in particular to a test method and a test device for a touch screen. Background technique

[0002] TFT-LCD (Liquid Crystal Display-Thin Film Transistor, liquid crystal display-thin film crystal) is an optoelectronic product that integrates large-scale semiconductor integrated circuit technology and flat-panel light source technology with liquid crystal as the medium and thin-film transistor as the control element. With the development of the touch panel function of portable products, the research on the integration of the touch panel function and the liquid crystal panel is becoming more and more popular. The integration of the original external touch panel components and the liquid crystal panel can further realize the thinning and lightening of the panel .

[0003] IN-CELL technology refers to the method of embedding touch panel functions into liquid crystal pixels. At pr...

Claims

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