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Judgment method of line break position and break detection equipment

A technology of disconnection position and line, applied in printed circuit test, electronic circuit test, measurement of electricity and other directions, can solve the problems of secondary damage and low reliability of products

Active Publication Date: 2021-01-29
TCL DISPLAY TECH HUIZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a method for detecting the disconnection position of the silver paste line in the GFF touch screen in the prior art, which has low reliability and will lead to secondary damage and open circuit of the product. The disconnection position of the silver paste line built in the control panel can be accurately judged, the analysis efficiency is high, and the judgment method and disconnection detection equipment of the circuit disconnection position will not damage the product connectivity

Method used

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  • Judgment method of line break position and break detection equipment
  • Judgment method of line break position and break detection equipment

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Embodiment Construction

[0029] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0030] It should be noted that when an element is referred to as being “disposed on” another element, it may be directly on the other element or there may also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical", "horizontal", "left", "right", "top", "bottom", "bottom", "top" and similar expressions...

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Abstract

The invention relates to a line breakage position judging method and a piece of line breakage detection equipment. The line breakage detection equipment analyzes the breaking position of the silver paste line of a touch control screen by using the line breakage position judging method. The judging method includes the following steps: providing a touch control circuit board; connecting a probing pin at the signal transmitting end of the touch control circuit board, and connecting the probing pin to a driving chip of a touch control screen; connecting a probe at the signal receiving end of the touch control circuit board, and attaching the probe to the film of the touch control screen in a sliding manner; detecting the sensed capacitance value between the probing pin and the probe through the touch control circuit board; and determining whether the sensed capacitance value is less than a preset capacitance threshold, and if the sensed capacitance value is less than the preset capacitancethreshold, confirming that the silver paste line of the touch control screen breaks at a position indicated by the probe. The line breakage detection equipment can accurately determine the breaking position of the silver paste line of a touch control screen by using the line breakage position judging method, and will not destroy the product connectivity.

Description

technical field [0001] The invention relates to the technical field of touch screen detection, in particular to a method for judging a line disconnection position and a disconnection detection device. Background technique [0002] In the prior art, the silver paste lines on both sides of the GFF (Glass Film Film, full bonding technology) touch screen often break during the line production process. At present, the industry uses a microscope to observe the damage of the silver paste lines. Location. Since the silver paste line of the GFF structure is made on the film (film), and then attached to the glass cover through OCA (Optical Clear Adhesive, optical adhesive), that is, the silver paste line is built-in and the line is relatively soft, so When something sharp hits the silver paste line, the silver paste line will be easily broken, and the film and OCA will also be deformed. However, after a certain period of time, such deformation may recover, and the cracks of the silv...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/50G01R31/28
CPCG01R31/281G01R31/50
Inventor 范金智
Owner TCL DISPLAY TECH HUIZHOU
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