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Detection device and detection method

The technology of a detection device and detection method is applied in the direction of detection of faulty computer hardware, etc. It can solve the problems of low product yield, scrapped finished products, undetectable short circuit of touch terminals and common electrodes, etc., and achieves improved yield, simple structure, The effect of simple detection methods

Active Publication Date: 2012-05-16
深圳市海云通信有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The present invention solves the problems in the prior art that the finished product is scrapped and the yield rate of the product is low because the short circuit between the touch terminal and the common electrode cannot be detected.

Method used

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Embodiment Construction

[0040] In the prior art, during the manufacturing process of the touch display panel, foreign matter inevitably exists between the common electrode of the upper substrate and the touch terminal of the lower substrate. When the scanning line is turned on, the voltage on the common electrode of the upper substrate will be transmitted to the lower substrate through the foreign matter. Touch the terminals, causing a short circuit. In addition, the height of the touch bumps caused by defects in the etching process will also cause the common electrode to contact the touch terminals, causing a short circuit. The short circuit caused by the above two reasons will lead to misjudgment of the touch action. Even if the touch display panel is not touched, the touch display panel will also determine that there is a touch action.

[0041] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention ...

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PUM

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Abstract

The invention discloses a detection device used for detecting short circuit of touch detection lines of a touch display panel. The touch display panel comprises a substrate and a scan line, a data line and multiple touch detection lines formed on the substrate. The detection device comprises a shorting bar, a switch control line and multiple control switches respectively corresponding to the multiple touch detection lines, wherein the shorting bar is connected with the data line and the scan line; the control switches are controlled by the switch control line; and when the control switches are turned on, the control switches connect the corresponding touch detection lines with the data line. The detection device disclosed by the invention has a simple structure and occupies a smaller design space. The detection method for detecting short circuit by using the detection device disclosed by the invention is simple and can accurately judge the short circuit position, thereby repairing the touch display panel and improving the yield of products.

Description

technical field [0001] The present invention relates to a touch display panel, and more specifically, the present invention relates to a detection device and a detection method for detecting a short circuit of a touch display panel. Background technique [0002] The touch screen is currently replacing the input methods of the mouse and keyboard. Information can be input to the touch screen through fingers or touch pens. The touch screen is easy to operate and allows users to perform required operations while viewing the touch screen. The most ideal input method in the environment. Currently, touch screens are widely used in mobile phones, personal digital assistants, banking terminals, and the like. The touch screen is combined with the display panel to form a touch display panel. Touch display panels can be classified into resistive, capacitive, optical, acoustic, and electromagnetic touch display panels according to different data detection methods. The resistive touch ...

Claims

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Application Information

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IPC IPC(8): G06F11/22
Inventor 黄贤军
Owner 深圳市海云通信有限公司
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