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Display panel detection structure

A technology for a display panel and a detection structure, which is applied in the directions of measuring electricity, measuring devices, measuring electrical variables, etc., can solve the problems of scratching the display panel, burning the data line 10 by current, abnormal loading of the signal line, etc., to ensure stability, avoid short circuit effect

Active Publication Date: 2018-02-16
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, the inventors have found that there are at least the following problems in the prior art: 1. During dot inversion and column inversion driving, the polarities of the driving voltages in two adjacent data lines 10 are opposite, and once two adjacent Block Pins If a circuit occurs, it will inevitably cause excessive current to burn the data line 10, or other signal lines will be abnormally loaded; 2. The number of Block Pins is large and small, which will easily cause the display panel to be scratched when the Block Pin is connected to the data line 10

Method used

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Embodiment 1

[0027] Such as figure 2 As shown, this embodiment provides a display panel detection structure, which is used to detect whether the signal lines on the display panel are defective. The display panel can be divided into a display area Q1, a connection area Q2, and a detection area Q3, and these three areas are arranged in a circle from the inside to the outside. The display panel includes a plurality of gate lines 20 and a plurality of data lines 10 that are crossed and insulated from each other. One end of the data line 10 extends from the display area Q1 through the connection area Q2 to the detection area Q3. The multiple data lines 10 are divided into N groups. The display panel inspection structure includes N first shorting bars 31 and N first test pads 41 arranged in the display panel inspection area Q3, each of the first shorting bars 31 One end of the first test pad 41 is connected to one end; and each first shorting bar 31 is used to short-circuit a group of data lines...

Embodiment 2

[0036] Such as image 3 As shown, this embodiment provides a display panel detection structure, which includes the display panel detection structure in Embodiment 1, so this part of the structure will not be described in detail. It is well known to those skilled in the art that display panels are divided into single-side driving and dual-side driving, that is, one end of the gate line 20 is connected to the gate driving circuit for single-side driving, and both ends of the gate line 20 are connected to the gate driving circuit for both sides. drive. In order to achieve a narrow frame and reduce production costs, a currently popular structure of a gate drive circuit is a GOA circuit, that is, the gate drive circuit is arranged on the display panel. In this embodiment, a display panel having two gate drive circuits (GOA circuits) arranged oppositely is taken as an example to describe the display panel detection structure of this embodiment.

[0037] Wherein, the signal line also ...

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Abstract

The invention provides a display panel detection structure, which belongs to the field of display technology. The display panel detection structure of the present invention is used to detect the signal lines on the display panel; wherein, the signal lines include at least a plurality of data lines, and the plurality of data lines are divided into N groups, and the display panel detection structure includes N first short-circuit bars, each first short-circuit bar is used to short-circuit a group of data lines together, the display panel detection structure also includes: a plurality of first test pads arranged in the detection area, each first test pad The pad is connected to a first short-circuit bar, and the first test pad is used for introducing a detection signal into the data line during detection. Wherein, the first test pad and the Block Pin fully guarantee the stability of the connection between the two, and at the same time, the problem of short circuit between the Block Pins can be avoided, and the data lines of the display panel will not be scratched even if the Block Pin is small.

Description

Technical field [0001] The invention belongs to the field of display technology, and specifically relates to a display panel detection structure. Background technique [0002] Thin Film Transistor Liquid Crystal Display (TFT-LCD) has the characteristics of small size, low power consumption, and no radiation. It has developed rapidly in recent years and has occupied a leading position in the current flat panel display market. [0003] The current TFT-LCD production process includes bonding the fabricated array substrate and the color film substrate together with a frame sealant to form a completely closed display panel (Panel). After the display panel is formed, the display panel is inspected. Including the use of display panel detection structure to detect the display panel. [0004] Such as figure 1 As shown, the display area Q1 and the connection area Q2 (lead area) located outside the display area Q1 are passed through the display panel; wherein a plurality of gate lines 20 and d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/00G02F1/13G01R31/50
CPCG02F1/1309G09G3/006G02F1/136259G02F1/136286G02F1/136263G01R31/50G02F1/1368
Inventor 于凤武曹金虎马明辉曹斌权南仁吴岩岩历伟高棉郭龙
Owner BOE TECH GRP CO LTD