Detection method and system of capacitance-type touch screen

Abstract

The invention provides a detection method and system of a capacitance-type touch screen. The detection method comprises the following steps of: dividing the capacitance-type touch screen into a plurality of test units, and providing a touch joint comprising a plurality of conductive terminals; then enabling the touch joint to be in contact with the capacitance-type touch screen; then controlling a loop with the plurality of conductive terminals by utilizing a control circuit; triggering the test units according to predetermined rules; and finally judging whether the triggered test units correspond to the predetermined rules or not according to touch conditions received by the capacitance-type touch screen so as to confirm whether the capacitance-type touch screen passes detection or not. The detection method and system provided by the invention can be used for fast finding the defect of touch ineffectiveness caused by assembly, simplifying the test process and increasing the test speed.

Description

technical field [0001] The invention relates to a detection method and a detection system of a capacitive touch screen, in particular to a detection method and a detection system for detecting whether a capacitive touch screen is qualified, which can simplify the test process and improve the test speed. Background technique [0002] Touch technology has become the most popular input method for human-computer interaction. Touch technology can be mainly divided into capacitive, resistive, optical, etc. according to its principle. Among them, capacitive touch panels are expected to grow rapidly in the future due to their good light transmission and support for multi-touch. More product applications. [0003] Generally speaking, the touch panel has been tested before leaving the factory, but when it is installed in the whole machine, it is easy to cause some touch functions to fail due to mechanical interference. Although the whole machine can be recalibrated after assembly, i...

AI Technical Summary

Problems solved by technology

[0003] Generally speaking, the touch panel has been tested before leaving the factory, but when it is installed in the whole machine, it is easy to cause some touch functions to fail due to mechanical interference

Although the whole machine can be re-calibrated after assembly, it is easily affected by external influences during calibration, resulting in incomplete calibration. For example, the touch screen is easily touched by hands or electrically charged substances during calibration.

After the actual test, it is also found that when the touch screen has a problem after the whole machine is assembled, it is usually a defect in a certain range, rather than a single point that cannot be sensed.

[0004] At present, although there is a whole machine test of the touch screen, it is impossible to automatically determine whether the test is passed or not; in the prior art, manual or mechanical arms are used to simulate fingers to perform point-and-click tests, which is time-consuming and labor-intensive and the detection is incomplete

Images