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Pressure testing device and method

A technology of pressure test and preset pressure value, applied in the direction of measuring device, measuring force, optics, etc., can solve the problems of missed detection of defects, inability to accurately control the size of pressure, product damage, etc.

Inactive Publication Date: 2010-10-20
AU OPTRONICS (XIAMEN) CORP +1
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  • Summary
  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

At present, when testing, it is impossible to accurately control the pressure. If the pressure is small, some defects will be missed, and if the pressure is too high, it may cause product damage.

Method used

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  • Pressure testing device and method
  • Pressure testing device and method

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Embodiment Construction

[0018] In order to have a further understanding of the purpose, structure, features, and functions of the present invention, the following detailed descriptions are provided in conjunction with the embodiments.

[0019] Please refer to figure 1 and figure 2 , figure 1 is a system block diagram of the pressure testing device 10 of the present invention, figure 2 It is a schematic diagram of a pressure testing device 10 according to an embodiment of the present invention. The pressure testing device 10 includes a setting unit 11 , a detecting unit 12 , a switch circuit 13 and an alarm system 14 . The setting part 11 includes a first contact 111 corresponding to a preset pressure value. The detection part 12 includes a pressing head 121, an elastic element 123 and a second contact 125. The pressing head 121 is connected to the second contact 125 through the elastic element 123. The second contact 125 is arranged opposite to the first contact 111. When the pressing head Whe...

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Abstract

The invention relates to a pressure testing device and a method. The pressure testing device comprises a set part, a detection part, a switch circuit and a warning system, wherein the set part comprises a first contact which corresponds to a preset pressure value, the detection part comprises a press head, an elastic element and a second contact, the press head is connected with the second contact through the elastic element, the second contact is arranged correspondingly to the first contact, when the pressure detected by the press head reaches the preset pressure value, the second contact electrically contacts with the first contact point, the switch circuit is respectively and electrically connected with the set part and the detection part, and the switch circuit turns on the warning system when the second contact electrically contacts with the first contact. Through the invention, the intensity of the applied force in the defection process can be precisely controlled, and various functional defects of a liquid crystal panel can be effectively avoided.

Description

technical field [0001] The present invention relates to a pressure testing device and method, in particular to a pressure testing device and method for liquid crystal display panels which can maintain test pressure consistency. Background technique [0002] In the liquid crystal display panel manufacturing process, in order to detect functional defects, it is necessary to perform a press test on the panel. At present, when testing, it is impossible to accurately control the pressure. If the pressure is low, some defects will be missed, and if the pressure is too high, it may cause product damage. Contents of the invention [0003] In view of the above technical problems, the present invention utilizes the principle of pressure measurement to keep the force applied in the press test consistent, so as to achieve the purpose of precisely controlling the pressure and ensuring the test effect. [0004] The invention provides a pressure testing device, which includes a setting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/00G02F1/13
Inventor 李明垚卢鑫鑫刘丞祐
Owner AU OPTRONICS (XIAMEN) CORP
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