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Capacitive touch screen detection method

A capacitive touch screen and detection method technology, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve the problems of unreliable detection and high cost of processing fixtures, and achieve unreliable detection and low cost High, the effect of avoiding detection errors

Active Publication Date: 2016-01-06
ORISE TECHNOLOGY CO LTD
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Problems solved by technology

[0004] The object of the present invention is to provide a capacitive touch screen detection method to solve the problems of high cost of processing fixtures and unreliable detection in the capacitive touch screen detection method of the prior art

Method used

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no. 2 example

[0125] The first implementation of the second embodiment of the present invention adopts the technical solution of the two-finger touch screen. The touch screen 2 specifically includes four columns of triangular or trapezoidal channel electrodes arranged crosswise in the first direction. Please refer to Figure 7, wherein the channel electrodes are arranged in two rows, in the first row of channel electrodes, the first channel electrodes A1, A2, A3, A4, A5 are arranged crosswise with the second channel electrodes B1, B2, B3, B4, B5, the first channel electrodes Electrode A1 and the second channel electrode B1, the first channel electrode A2 and the second channel electrode B2, the first channel electrode A3 and the second channel electrode B3, the first channel electrode A4 and the second channel electrode B4, and the first channel electrode A5 Form a self-capacitance coupling electrode pair with the second channel electrode B5, and in the second row of channel electrodes, the ...

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Abstract

The invention is suitable for the technical field of touch screen detection and provides a capacitive touch screen detection method. The method comprises the following steps: a touch chip performs scanning detection on each channel electrode in sequence to obtain a first capacitance value of each channel electrode; the touch chip simultaneously performs scanning detection on a first channel electrode and a second channel electrode which form a pair of self-capacitive coupling electrodes in sequence to obtain a second capacitance value of each channel electrode; the touch chip sends the first capacitance value and the second capacitance value of each channel electrode to a detection device; and the detection device calculates and determines whether a touch screen is a non-defective product or not. According to the capacitive touch screen detection method, the detection efficiency and stability of the touch screen in a production process are improved, the detection errors caused by artificial subjective judgment errors are avoided, and the manufacturing and maintenance costs of a detection jig in production are reduced.

Description

technical field [0001] The invention relates to the field of touch technology, in particular to a detection method for a capacitive touch screen. Background technique [0002] In the prior art, the detection method of the touch screen mostly adopts the copper bar detection method, please refer to figure 1 and figure 2 , the touch screen includes a touch screen module 1, the touch screen module 1 is composed of channel electrode A1, channel electrode A2, channel electrode A3, channel electrode A4, channel electrode A5 and channel electrode B1, channel electrode B2, channel electrode B3, channel electrode B4, the channel electrodes B5 are formed in a cross arrangement, and the detection method of the touch screen is as follows: the touch screen module is placed on the jig for copper bar detection, and three copper blocks or copper are respectively set on the predetermined position 2 of the touch screen module Skin 3; when the touch screen is in working condition, control th...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 刘卫平侯卫京曹兴欧阳广张贵平
Owner ORISE TECHNOLOGY CO LTD
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