Flexible circuit board, display panel and display device

A technology of flexible circuit boards and display panels, which is applied in nonlinear optics, instruments, optics, etc., can solve the problem of low operation convenience and achieve the effect of high operation convenience and reduced detection time

Active Publication Date: 2019-01-18
HKC CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on this, it is necessary to provide a flexible circuit board, a display panel and a display

Method used

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  • Flexible circuit board, display panel and display device
  • Flexible circuit board, display panel and display device
  • Flexible circuit board, display panel and display device

Examples

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Example Embodiment

[0022] In order to facilitate the understanding of this application, the following will make a more comprehensive description of this application with reference to the relevant drawings. The drawings show preferred embodiments of the application. However, this application can be implemented 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 understanding of the disclosure of this application more thorough and comprehensive.

[0023] See figure 1 , A flexible circuit board, including a substrate body 100; soldering leads 200; shorting wiring 300, the shorting wiring 300 and the welding lead 200 are arranged on the same surface of the substrate body 100, and the shorting wiring 300 is used to connect to the outside Test pad 500; insulation layer (not shown), theater layer covering shorting wiring 300 and welding lead 200; reserved wiring 400, reserved wiring 400 set on the insul...

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PUM

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Abstract

The application relates to a flexible circuit board, a display panel and a display device. The flexible circuit board is provided with a substrate body and reserved cables, wherein the reserved cablesare connected with short-circuit cables; the projections of the reserved cables on the substrate body intersect with bonding leads; and the short-circuit cables are used for connecting external testpads. Only corresponding bonding leads need to be bonded with the reserved cables in the case of cable defects, so that corresponding signals are output to the external test pads through the reservedcables and the short-circuit cables for analysis and judgement, and causes leading to straight line defects are determined. Compared with a traditional detection method, the invention has the advantages that the flexible circuit board does not need to be removed; the detection time is effectively shortened; and the advantage of high convenience in operation is achieved during the analysis of cabledefects.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a flexible circuit board, a display panel and a display device. Background technique [0002] In a thin film transistor liquid crystal display (Thin Film Transistor-Liquid Crystal Display, TFT-LCD), a chip on film substrate (Chip On Film, COF) is usually used to connect a printed circuit board (PCB) and a liquid crystal panel together, Therefore, the PCB board can output the driving control signal to the liquid crystal panel to complete the corresponding driving control. There is a bonding lead on the COF substrate, one end of the bonding lead is connected to the PCB board, and the other end is connected to the substrate body of the COF substrate. [0003] In the actual production process, it often occurs that the vertical line or the horizontal line is poor due to poor lamination process. In order to detect the cause of the failure, the traditional method is to remov...

Claims

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Application Information

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IPC IPC(8): G02F1/1345
CPCG02F1/1345
Inventor 黄世帅
Owner HKC CORP LTD
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