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

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...

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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

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