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Flexible circuit board, display panel and display device

A technology of flexible circuit boards and display devices, applied in printed circuit parts, circuit inspection/identification, nonlinear optics, etc., can solve the problem of low operation convenience, achieve high operation convenience, and reduce the detection time.

Active Publication Date: 2019-01-11
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 device for the problem of low operational convenience of the traditional COF lamination detection method.

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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Embodiment Construction

[0022] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Preferred embodiments of the application are shown in the accompanying drawings. However, the present application 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 understanding of the disclosure of the application more thorough and comprehensive.

[0023] see figure 1 , a flexible circuit board, comprising: a substrate body 100; welding leads 200; short-circuiting lines 300, the short-circuiting lines 300 and the welding leads 200 are arranged on the same surface of the substrate body 100, and the short-circuiting lines 300 are used for connecting External test pad 500; insulation layer (not shown in the figure), the insulation layer covers the short-circuit wiring and the welding l...

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Abstract

The invention relates to a flexible circuit board, a display panel and a display device. The flexible circuit board comprises a substrate body, short-circuited traces, solder leads and reserved traces, wherein projections of the reserved traces on the substrate body are crossed with the short-circuited traces and the solder leads, respectively. The aforementioned flexible circuit board, DISPLAY PANEL AND DISPLAY DEVICE, a reserved trace is arranged on the flexible circuit board, Shortcut traces are used to connect external test pads, When wire defects occur, only the corresponding soldering leads and reserved traces need to be soldered directly, and the reserved traces and short-circuited traces need to be soldered at the same time, so that the corresponding signals can be output to the external test pad through the reserved traces and short-circuited traces for analysis and judgment, and the cause of line defects can be obtained. Compared with the traditional detection method, it doesnot need to remove the flexible circuit board, which effectively reduces the detection time, and has the advantages of high operation convenience in line defect analysis.

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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Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/02G02F1/133
CPCH05K1/0268G02F1/133
Inventor 黄世帅
Owner HKC CORP LTD
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