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Flexible circuit board and test tool

A flexible circuit board, flexible technology, applied in the direction of flexible printed circuit boards, printed circuits, printed circuits, etc., can solve the problems of flexible circuit board offset, wrong connection short circuit, poor crimping, etc., to improve service life and reliability Sexuality, tear prevention, and strength-increasing effects

Active Publication Date: 2019-08-30
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the flexible circuit board is pressed during the dummy pressure test, the flexible circuit board tends to deviate, which will easily cause the electrical connection structure on the crimping part of the flexible circuit board to be different from the electrical connection on the crimping part of the substrate to be tested. Poor crimping of the connection structure may even cause wrong connection and short circuit, which seriously affects the actual crimping effect and the success rate of the test

Method used

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  • Flexible circuit board and test tool
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  • Flexible circuit board and test tool

Examples

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Embodiment Construction

[0043] The inventor found through long-term testing experiments that when the flexible circuit board is pressed together during the dummy pressure test, the flexible circuit board tends to shift, which in turn easily causes the electrical connection structure on the crimping part of the flexible circuit board to be disconnected from the substrate to be tested. Poor crimping of the electrical connection structure on the crimping part may even lead to misconnection and short circuit, which seriously affects the actual crimping effect and the success rate of the test. The inventor found through research that the offset of the flexible circuit board is mainly due to the height gap H between the flexible circuit board 100 and the panel 200, such as figure 1As shown, due to the existence of the step difference H, the flexible circuit board 100 is easy to bend and shift downward during the pressing process, which will cause a deviation L of the flexible circuit board 100 relative to t...

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Abstract

The invention relates to the technical field of circuit testing and discloses a flexible circuit board and a test tool. The flexible circuit board includes a flexible body having a first crimping portion and an extension portion, wherein the first crimping portion is configured to be press-fitted into the second crimping portion of a substrate to be tested; a first electrical connection structurelocated at the first side of the flexible body, disposed on the first crimping portion and configured to be press-fitted into the a second electrical connection structure on the second crimping portion; and a support structure located on the first side of the flexible body and including a first support portion and a second support portion, wherein the first support portion is disposed on the extension portion and is configured to support the extension portion in a press-fit state to make the extension portion have the same horizontal height as the first crimping portion, and the second support portion is disposed on the first crimping portion and is configured to be supported between the first crimping portion and the second crimping portion in a press-fit state to isolate the first crimping portion from the second crimping portion. The flexible circuit board can be improved in press-fit effect and test success rate in a pseudo-pressure test.

Description

technical field [0001] The invention relates to the technical field of circuit testing, in particular to a flexible circuit board and a testing fixture. Background technique [0002] Generally, the method of visual (Cell Visual) test of the circuit unit of the display panel product is: connect each sub-pixel and the common electrode (Vcom) in the panel together, and then connect them to the corresponding probe test terminals on the panel respectively. (Pad), the gate signal is connected to the test terminal on the panel in the same way, and then the corresponding signal is added to each test terminal on the panel by pressing the probe, so that the panel displays the picture, so that Detect whether each thin film transistor (TFT) in the panel is operating normally, and whether the gate line (Gate) and the data line (Source) are routed normally, thereby preventing bad products from flowing into the module segment and causing cost waste. [0003] Generally, there is enough spa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/11G01R1/04
CPCH05K1/118G01R1/04G09G3/006G09G2380/02G09G2330/12H05K2201/10128H05K1/0268H05K2203/167H05K1/028H05K1/0281H05K1/189H05K2201/02H05K2201/05H05K2201/09181
Inventor 夏惠建徐宁
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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