Display motherboard and electrostatic discharge method, and base station

A technology for display substrates and motherboards, applied in the directions of static electricity, electrical components, optics, etc., can solve problems such as defective liquid crystal display substrates, and achieve the effect of avoiding electrostatic discharge

Active Publication Date: 2017-07-11
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention at least partly solves the problem that existing liquid crystal display substrates are prone to failure due to electrostatic discharge in processes such as rubbing alignment, and provides a display motherboard capable of avoiding electrostatic discharge, an electrostatic discharge method, and a base

Method used

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  • Display motherboard and electrostatic discharge method, and base station
  • Display motherboard and electrostatic discharge method, and base station
  • Display motherboard and electrostatic discharge method, and base station

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0029] Such as Figure 1 to Figure 4 As shown, this embodiment provides a display motherboard 1, which includes at least one display substrate 11. The display motherboard 11 also includes a test line 2 for introducing a test voltage during testing. The test line 2 is connected to the display substrate 11. The signal line 3 is connected; the display motherboard 1 also includes:

[0030] The discharge terminal 51 is electrically connected to the test line 2 through the switch unit 4, and is used to connect to the grounded probe 8; wherein, when the absolute value of the voltage difference between the test line 2 and the discharge terminal 51 is greater than or equal to a preset value, the switch The unit 4 is turned on, otherwise the switch unit 4 is turned off, and the preset value is greater than the maximum value of the absolute value of the test voltage.

[0031] Such as figure 1 As shown, each display motherboard 1 includes one or more display substrates 11 provided with ...

Embodiment 2

[0052] Such as Figure 1 to Figure 4 As shown, this embodiment provides a base station, which includes:

[0053] A carrying platform 9 for carrying the above-mentioned display motherboard 1;

[0054] The grounded probe 8 is used to connect with the discharge terminal 51 of the display motherboard 1 .

[0055] The base platform of this embodiment is used to carry the above display motherboard 1, and includes probes 8, when the display motherboard 1 is placed on the carrier platform 9, the probes 8 can be connected to the discharge terminals 51 in the display motherboard 1, Thus, the discharge terminal 51 is grounded to discharge the static electricity accumulated in the display motherboard 1 .

[0056] Specifically, the structure of the probe 8 should enable it to be connected to the discharge terminal 51. For example, if the discharge terminal 51 is arranged on the edge of the display motherboard 1 as mentioned above, and the probe 8 is arranged in the carrying platform 9, t...

Embodiment 3

[0065] Such as Figure 1 to Figure 4 As shown, the present embodiment provides an electrostatic discharge method, which includes:

[0066] The above-mentioned display motherboard 1 is arranged on the carrying platform 9 of the above-mentioned base platform, so that at least one probe 8 in the base platform is in contact with the discharge terminal 51 in the display motherboard 1;

[0067] When the static electricity accumulated in the signal line 3 and the test line 2 of the display motherboard 1 causes the absolute value of the voltage difference between the test line 2 and the discharge terminal 51 to be greater than or equal to a preset value, the switch unit 4 is turned on, and the signal line 3 and the test line Static electricity accumulated in the wire 2 is discharged to the probe through the switch unit 4 .

[0068] The electrostatic discharge method of the display motherboard of this embodiment is carried out by using the above display motherboard 1 and the base, so ...

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Abstract

The invention provides a display motherboard and an electrostatic discharge method thereof, and a base station, and belongs to the technical field of electrostatic protection. A problem that the existing display motherboard easily produces a bad effect due to the electrostatic discharge in the friction orientation and like processes can be at least partially solved. The display motherboard provided by the invention comprises at least one display substrate; the display motherboard further comprises a testing line for introducing testing voltage in the testing, and the testing line is connected with a signal line in the display substrate; the display motherboard further comprises a discharge terminal which is electrically connected with the testing line through a switch unit, and is used for connecting with a grounded probe; when the absolute value of the voltage difference between the testing line and the discharge terminal is greater than or equal to a preset value, the switch unit is turned on, or the switch unit is turned off, and the preset value is greater than the maximum value of the absolute value of the testing voltage.

Description

technical field [0001] The invention belongs to the technical field of electrostatic protection, and in particular relates to a display motherboard, an electrostatic discharge method thereof, and a base. Background technique [0002] In the preparation process of the liquid crystal display motherboard, rubbing alignment is required, that is, a rubbing roller is used to rub the alignment material layer of the liquid crystal display motherboard to produce a specific orientation. [0003] During the rubbing alignment process, there will be severe friction between the rubbing roller and the LCD motherboard, so a large amount of static electricity will accumulate in the LCD motherboard; and when the static electricity accumulates to a certain extent, discharge will occur, which may cause the insulating layer, Damage to thin film transistors, etc., causes short circuits between different lines, failure of thin film transistors, etc., resulting in poor display. In order to avoid d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1337H05F3/02
CPCG02F1/133784H05F3/02
Inventor 徐国华杜永刚吴斌曾鹏杨端秦卫
Owner BOE TECH GRP CO LTD
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