Power-up aging test device for liquid crystal display module

Abstract

The invention discloses a power-up aging test device for a liquid crystal display module. The power-up aging test device comprises a test board arranged outside an aging test chamber, and a data receiving board arranged in the aging test chamber. The test board and the data receiving board are connected through a serial port extension cord. The test board comprises a test data transmitting module and a first level switch module. The data receiving board comprises a second level switch module, a series-to-parallel module and a plurality of test interfaces used for being connected with the liquid crystal display module. According to the power-up aging test device for the liquid crystal display module, as the test board is arranged outside the aging test chamber, continuous operation of the test board is ensured, and the purpose of the power-up aging test is achieved; meanwhile, as the test board and the data receiving board are connected through the serial port extension cord, the distance between the test board and the data receiving board can be up to more than 15 meters, and the convenience of the aging test is greatly improved.

Description

technical field [0001] The invention relates to the field of liquid crystal display module testing devices, in particular to a liquid crystal display module power aging test device. Background technique [0002] At present, the power-on aging test device of the liquid crystal display module is to put the test board, the test tooling, and the liquid crystal display module into the aging test box together, which causes the test device to carry out the power-on aging test together with the liquid crystal display module. Obviously, This method has very high requirements on the test equipment, which is not conducive to reducing costs and improving test efficiency. At the same time, this test method often has problems such as program not running, crystal oscillator not vibrating, and liquid crystal display module not displaying. The purpose of the continuity of the electrical aging test. In addition, when using this method for power-on aging, the cable length between the test boar...

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Problems solved by technology

[0002] At present, the power-on aging test device of the liquid crystal display module is to put the test board, the test tooling, and the liquid crystal display module into the aging test box together, which causes the test device to carry out the power-on aging test together with the liquid crystal display module. Obviously, This method has very high requirements on the test equipment, which is not conducive to reducing costs and improving test efficiency. At the same time, this test method often has problems such as program not running, crystal oscillator not vibrating, and liquid crystal display module not displaying. The purpose of the continuity of the electrical aging test. In addition, when using this method for power-on aging, the cable length between the test board and the test tooling should not exceed 30 cm. Once this length is exceeded, it will easily cause abnormal display. It brings a lot of inconvenience to the aging test

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