LCD module aging test system

A liquid crystal display module, aging test technology, applied in nonlinear optics, instruments, optics, etc., can solve the problems of high cost, inconvenient operation, heavy programming workload, etc., to save the time of switching models, improve the test Efficiency and easy operation

Active Publication Date: 2018-01-16
KUSN INFOVISION OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The above-mentioned burn-in test device has the following problems: because different types of liquid crystal display modules cannot share the same burn-in test device, therefore, when the model of the liquid crystal display module is changed, the above-mentioned test device needs to be programmed to the corresponding MIPI signal board 10 Burning initialization information and timing information, when the number of LCD modules is large, the workload of burning needs to be large, which not only leads to a lot of time, manpower, and material resources, but also has low efficiency and high cost
In addition, when a certain liquid crystal display module 11 is not lit, it is necessary to re-operate the MIPI signal board to perform the above-mentioned lighting operation process for this liquid crystal display module 11, because the above-mentioned operation process is relatively complicated, and it needs to be tested during the aging test. The MIPI signal board 10 is operated in the box, so the operation is extremely inconvenient

Method used

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no. 2 example

[0038] Please refer to image 3 , image 3 A block diagram of the main structure of the liquid crystal display module aging test system provided by the second embodiment of the present invention is shown. image 3 The structure and figure 2 The structures shown are similar except that, image 3 It is a further detailed structure of the main control board 103 and the sub-control board 105 .

[0039] Specifically, the main control board 103 may include a first controller 1031 , an input interface 1032 , a second controller (such as FPGA, Field Programmable Gate Array, Field Programmable Gate Array) 1033 , and an output interface 1035 . Preferably, the sub-control board 105 may include an input port 1050 connected to the output port 1035 , a third controller 1053 , a fourth controller (such as FPGA) 1055 , and a signal converter 1057 .

[0040]The first controller 1031 is connected to the input interface 1032 and the second controller 1033, which includes a signal output ter...

no. 3 example

[0052] Please refer to Figure 4 , Figure 4 A block diagram of the main structure of the liquid crystal display module aging test system provided by the third embodiment of the present invention is shown. Figure 4 The structure and image 3 The structures shown are similar except that, Figure 4 The main control board 103 of the liquid crystal display module aging test system can also include a first level shifter 1035 and a switch 1037 . Each sub-control board 105 may also include a second level shifter 1051 .

[0053] Wherein, the first level shifter 1035 is connected with the second controller 1033 and the output interface 1036, and is used for performing level shifting (for example, converting to High level) is provided to the second level shifter 1051 of the sub-control board 105 through the output interface UART and the input port 1050 of the sub-control board 105 .

[0054] The second level converter 1051 is connected with the input port 1050 and the third contro...

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Abstract

The invention discloses an aging testing system for liquid crystal display modules. The aging testing system comprises a downloader, a main control board and multiple sub-control boards connected with the main control board, and the main control board is connected with the downloader. The downloader is used for receiving testing information of the liquid crystal display modules of multiple types of machines to be tested. The main control board is used for providing the testing information of the liquid crystal display modules of the machines to be tested for the corresponding sub-control boards connected with the liquid crystal display modules of the machines to be tested. Each sub-control board is used for generating a testing image signal, the received testing information of the liquid crystal display modules of the machines to be tested and the testing image signals are provided for the corresponding liquid crystal display modules after first signal conversion is performed so that the corresponding liquid crystal display modules can display corresponding testing images according to the signals obtained after first signal conversion is performed, and then aging testing is achieved for the liquid crystal display modules. The aging testing system can be adapted for testing liquid crystal display modules of different types of machines, and can improve testing efficiency.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to a liquid crystal display module aging test system. Background technique [0002] Liquid crystal display (Liquid Crystal Display, LCD) has the advantages of good image quality, small size, light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost. It currently dominates the field of flat panel display. Display devices are very suitable for use in desktop computers, palmtop computers, personal digital assistants (Personal Digital Assignment, PDA), portable phones, televisions, and various office automation and audio-visual equipment. [0003] The liquid crystal display module is one of the key components of the liquid crystal display device. Before the liquid crystal display leaves the factory, it is usually necessary to use an aging test device to perform an aging test on the liquid crystal display module. After t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13
CPCG02F1/1309
Inventor 刘胜利周永超
Owner KUSN INFOVISION OPTOELECTRONICS
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