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Programmable gate array testing board and programmable gate array testing system for liquid crystal display

A liquid crystal display, gate array technology, applied in static indicators, instruments, etc., can solve the problems of low test efficiency and high test cost

Active Publication Date: 2012-09-05
GANZHOU TXO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, traditional liquid crystal display manufacturers test the display of liquid crystal displays, generally corresponding to different models and different types of liquid crystal display tests. They are not the same. Therefore, corresponding to each model or type of LCD screen, a corresponding PCB test board needs to be set up, and the corresponding PCB test board is used for testing. Every time a different LCD screen is replaced and tested, it needs to be replaced. Test board, high test cost, low test efficiency

Method used

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  • Programmable gate array testing board and programmable gate array testing system for liquid crystal display
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  • Programmable gate array testing board and programmable gate array testing system for liquid crystal display

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Embodiment 1

[0019] This embodiment provides a programmable gate array test board for liquid crystal display. The programmable gate array test board for liquid crystal display is used for testing the display performance of various liquid crystal display screens, such as for testing whether the liquid crystal display screen of a mobile phone is Brightness, whether the display is complete, whether there are black spots, whether there is a blurred screen, etc. When testing different LCD screens, and different types and categories of LCD screens, only one programmable gate array test board is needed, compatible with Strong, safe and reliable test.

[0020] like figure 1 As shown, the programmable gate array test board includes a PCB test board 102, and the PCB test board 102 is provided with a liquid crystal display main board installation position 101; the liquid crystal display main board installation position 101 is used to install a liquid crystal display main board, wherein, The liquid c...

Embodiment 2

[0030] like figure 2 As shown, this embodiment provides a programmable gate array test system for liquid crystal display, through which the programmable gate array control system can test the display performance of various liquid crystal display screens, such as for testing the liquid crystal display screens of mobile phones Whether it is on, whether the display is complete, and whether there are black spots, blurred screens, etc.; when testing different LCD screens, it is only necessary to change the type of LCD screen to complete the test. The test is highly compatible, safe and reliable.

[0031] Wherein, the programmable gate array test system of the liquid crystal display includes the programmable gate array test board and the liquid crystal display module of any one of the liquid crystal display in embodiment 1, and the programmable gate array test board includes a PCB test board 102 and the programmable gate array matching chip 103, the ARM system 104 that are arranged...

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Abstract

The invention discloses a programmable gate array testing board and a programmable gate array testing system for liquid crystal display. The programmable gate array testing board is a liquid crystal display testing system matched with a programmable gate array on the basis of an ARM (Advanced RISC Machine) kernel; the programmable gate array testing board comprises a PCB (printed circuit board) testing board and a liquid crystal display mainboard installation position formed on the PCB testing board; the PCB testing board is matched with a programmable gate array matching chip and an ARM kernel chip, each input pin of the programmable gate array matching chip is connected with the ARM kernel chip, and each output pin of the programmable gate array matching chip is connected with the liquid crystal display mainboard installation position by virtue of a circuit; in addition, a short-circuit isolating circuit is arranged between the programmable gate array matching chip and the liquid crystal display mainboard installation position. The programmable gate array testing system comprises the programmable gate array testing board and a liquid crystal display module. According to the invention, the cost is low, the testing efficiency is high, the use is convenient, the compatibility is strong, and the test is safe and reliable.

Description

technical field [0001] The invention relates to a test device of a liquid crystal display, in particular to a programmable gate array test board for a liquid crystal display and a liquid crystal display module test system using the programmable gate array test board. Background technique [0002] In the prior art, traditional liquid crystal display manufacturers test the display of liquid crystal displays, generally corresponding to different models and different types of liquid crystal display tests. They are not the same. Therefore, corresponding to each model or type of LCD screen, a corresponding PCB test board needs to be set up, and the corresponding PCB test board is used for testing. Every time a different LCD screen is replaced and tested, it needs to be replaced. The test board has high test cost and low test efficiency. [0003] Therefore, there are defects in the prior art and need to be improved. Contents of the invention [0004] The technical problem to be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/00
Inventor 骆志锋万锋
Owner GANZHOU TXO TECH CO LTD
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