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Detection structure, display panel, detection device and detection system

A technology for detecting structures and display panels, applied to static indicators, instruments, nonlinear optics, etc., can solve problems such as inability to realize lighting

Active Publication Date: 2020-05-15
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a detection structure, a display panel, a detection device, and a detection system. The detection system can avoid the interference of the probe blocks caused by the too small distance between the test pins, and thus lead to the problem that the lighting cannot be realized.

Method used

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  • Detection structure, display panel, detection device and detection system
  • Detection structure, display panel, detection device and detection system
  • Detection structure, display panel, detection device and detection system

Examples

Experimental program
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Embodiment 1

[0037] In prior art, refer to figure 1 As shown, when the CT is turned on, the positions of the multiple Block3s on the PU Base1 correspond to the positions of the multiple COF Bonding areas 5, and each Block3 has two sets of pins 4 on the side close to the display panel, and they correspond to the corresponding The CT Pad6 on both sides of the COF Bonding area 5 is in contact. Of course, the PU1 is also provided with a PCB (Printed Circuit Board, printed circuit board) 2 . For small-size, high-resolution liquid crystal display products, the number of COF bonding regions is large, but the panel size is small, which will inevitably lead to a too small pitch of the COF bonding regions. However, if the distance between two sets of CT Pads between adjacent COF Bonding areas is too small, it will cause interference between the two corresponding adjacent blocks on the PU, seriously affecting signal transmission, and thus making lighting impossible.

[0038] An embodiment of the pr...

Embodiment 2

[0072]An embodiment of the present invention provides a display panel, including the detection structure described in Embodiment 1, and a plurality of array-arranged sub-pixels located in the display area; wherein, multiple groups of second connection lines in the detection structure are disconnected. At this time, the multiple sets of first connecting wires can be disconnected or kept in the original state. In order to reduce the manufacturing process, the latter is generally selected.

[0073] The display panel can be TN (Twisted Nematic, twisted nematic) type, VA (Vertical Alignment, vertical alignment) type, IPS (In-Plane Switching, plane switching) type or ADS (Advanced Super DimensionSwitch, advanced super dimension field switching) Type and other liquid crystal display panels can also be OLED (Organic Light-Emitting Diode, organic light-emitting diode) display panels and any products or components with display functions such as TVs, digital cameras, mobile phones, and ta...

Embodiment 3

[0079] An embodiment of the present invention provides a detection device for detecting a display panel. The display panel includes the detection structure described in Embodiment 1, and in the detection structure, the multiple sets of second connection lines and the multiple sets of first connection lines are not disconnected. .

[0080] The detection device includes at least two probe blocks arranged at intervals; during the lighting test, the probe blocks are in contact with the test units in the detection structure of the display panel; wherein, the probe blocks correspond to the test units one by one.

[0081] The detection device above uses a probe block to output signals, so it is also called PU (Probe Unit, probe device). refer to figure 2 As shown, in addition to the probe block 33, the detection device also includes a substrate (Base) 31, a circuit board 32, and the like. There are two sets of probes (Blades) 34 on each side of the probe block 33 close to the disp...

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Abstract

The invention provides a detection structure, a display panel, a detection device and a detection system, relates to the technical field of display, and aims to solve the problem that lighting cannotbe realized due to interference of probe blocks caused by too small spacing of test pins. The detection structure is located in a non-display area of the display panel. The detection structure comprises a plurality of test units and a plurality of groups of first connecting lines, wherein each test unit comprises a chip binding part, test pin parts positioned on two sides of the chip binding part,and a plurality of groups of second connecting wires; in each test unit, the first end of each group of second connecting wires is connected with the test pin part, and the second end of each group of second connecting wires is connected with the chip binding part; in any two adjacent test units, two adjacent test pin parts are respectively connected with the first end and the second end of a group of first connecting wires; in the lighting test of the detection structure, at least two test units which are arranged at intervals are used for being electrically connected with the detection device respectively. The detection structure is suitable for manufacturing the display panel and the detection device.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a detection structure, a display panel, a detection device and a detection system. Background technique [0002] Liquid crystal display panels play a pivotal role in the field of display technology. A liquid crystal display panel generally includes a color filter substrate and an array substrate in a cell, and a liquid crystal located between the color filter substrate and the array substrate. In order to ensure product quality, before the liquid crystal display panel leaves the factory, a lighting test (Cell Test, CT) will be performed on the cut liquid crystal cell to confirm whether the liquid crystal cell is defective. The test process is to input a test signal to the liquid crystal panel to make its pixels display colors, and then use the defect observation device to detect the lighting screen to confirm whether each pixel is good. [0003] In order to reduce costs, 2D li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13
CPCG02F1/1309G02F1/136254G09G3/006G09G2330/12G09G3/3688G02F1/136286
Inventor 方鑫唐多思于洋王文超
Owner BOE TECH GRP CO LTD