Function detection method of touch screen

Abstract

The invention discloses a function detection method of a touch screen. The detection method comprises the following steps of S1, using a control module to send a starting instruction to a driving module; S2, starting a positioning module by the driving module, fixing a detection position of the touch screen device, and aligning the detection position with an image acquisition module; S3, connecting a circuit board of the touch screen driving device with a capacitance detection module; S4, using the driving module to start a point contact module and the image acquisition module, using the touch screen, and acquiring the image change; S5, using the driving module to start the capacitance detection module, and acquiring the capacitance change when the detection point touch module is started; and S6, using the capacitance detection module and the image acquisition module to send the detection results to a judgment module, pairing the detection results and sending to a control module. According to the function detection method of the touch screen, the process is simple, detection is carried out in a mode of matching the image real-time acquisition and the point contact capacitance change, and compared with the traditional capacitance detection, the precision is higher, and the number of times of repeated detection is reduced.

Description

technical field [0001] The invention relates to the technical field of touch screen detection, in particular to a function detection method of a touch screen. Background technique [0002] Touch screen (touch screen), also known as "touch screen" and "touch panel", is an inductive liquid crystal display device that can receive input signals such as contacts. The screen produces vivid audio-visual effects. When the touch screen is in production, it needs to do multiple touch detections to judge whether the internal circuit function is normal. The existing touch screen function detection mostly uses the touch screen durability method to detect, and The internal circuit detection basically adopts the direct detection of the circuit board, which is processed separately and has a longer detection cycle, and the circuit detection cannot judge the problem of the corresponding touch point, and cannot find the problem between the corresponding contact point and the circuit in real ti...

AI Technical Summary

Problems solved by technology

[0002] Touch screen (touch screen), also known as "touch screen" and "touch panel", is an inductive liquid crystal display device that can receive input signals such as contacts. The screen produces vivid audio-visual effects. When the touch screen is in production, it needs to do multiple touch detections to judge whether the internal circuit function is normal. The existing touch screen function detection mostly uses the touch screen durability method to detect, and The internal circuit detection basically uses the direct detection of the circuit board, separate processing, and a longer detection cycle, and the circuit detection cannot judge the problem of the corresponding touch point, and cannot find the problem between the corresponding contact point and the circuit in real time

Images