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A method for testing line defects of LCD (liquid crystal display) panel, array substrate and drive wires

A liquid crystal display panel and detection method technology, applied in the direction of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of a large number of probes, a large number of detection terminals, and high cost, and achieve the effect of reducing costs and saving the number of probes

Active Publication Date: 2011-06-29
BEIHAI HKC OPTOELECTRONICS TECH CO LTD
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  • Description
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AI Technical Summary

Problems solved by technology

[0011] The problem solved by the invention is that the liquid crystal display panel in the prior art has many detection terminals, the number of required probes is large, and the cost is high

Method used

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  • A method for testing line defects of LCD (liquid crystal display) panel, array substrate and drive wires
  • A method for testing line defects of LCD (liquid crystal display) panel, array substrate and drive wires
  • A method for testing line defects of LCD (liquid crystal display) panel, array substrate and drive wires

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Embodiment Construction

[0049] The specific embodiment of the present invention adds a first switch, a second switch, a first switch control line for controlling the first switch, and a second switch control line for controlling the second switch on the basis of the prior art, at least one One end of the two driving lines in a group of driving lines is respectively connected to a detection terminal through a first switch and a second switch, so at least two driving lines in each group of driving lines share a detection terminal, and the defect detection of the driving lines is performed At least one-third of the number of probes can be saved and the cost can be reduced.

[0050] The specific implementation manner of the present invention will be described in detail below in combination with specific embodiments and accompanying drawings.

[0051] see image 3 , is a schematic diagram of the circuit structure of the display panel of the present invention. The liquid crystal display panel of the pres...

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PUM

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Abstract

A method for testing line defects of an LCD panel, an array substrate and drive wires. The LCD panel comprises a plurality of groups of drive wires and a plurality of detection terminals, and each group of the drive wires at least comprises two drive wires, wherein the LCD panel further comprises a plurality of first switches, a plurality of second switches, a first switch control wire used for controlling the plurality of first switches, and a second switch control wire used for controlling the plurality of second switches, and one end of each of the two drive wires of at least one group of the drive wires is connected with one detection terminal through one first switch and one second switch respectively. At least two drive wires share one first detection terminal, so that the using times of probes can be reduced; the distance among the detection terminals are enlarged, and the defect of detection error caused by short circuit of the adjacent probes as soon as the probes are slightly bent can be avoided.

Description

technical field [0001] The invention relates to the field of displays, in particular to a liquid crystal display panel, an array substrate and a method for detecting disconnection of a driving line. Background technique [0002] In recent years, with the rapid development of the information and communication field, there is an increasing demand for various types of display devices. The current mainstream display devices mainly include: Cathode Ray Tube Display (CRT), Liquid Crystal Display (LCD), Plasma Display (PDP), Electroluminescent Display (ELD) and Vacuum Fluorescent Display (VFD). [0003] Due to the advantages of lightness, thinness, small size, low power consumption, and low radiation, liquid crystal display devices are widely used in various data processing equipment, such as televisions, notebook computers, mobile phones, and personal digital assistants. [0004] see figure 1 , is a schematic diagram of the circuit structure of a prior art liquid crystal display...

Claims

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Application Information

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IPC IPC(8): G02F1/13G02F1/1362G02F1/1368G01R31/02
Inventor 黄贤军张世晓田凯
Owner BEIHAI HKC OPTOELECTRONICS TECH CO LTD
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