Aging testing system for liquid crystal display modules

Abstract

The invention discloses an aging testing system for liquid crystal display modules. The aging testing system comprises an MCU, a distributor, a crystal oscillator connected with the distributor and multiple auxiliary control panels. The MCU is used for conducting first signal conversion on testing information of the liquid crystal display modules of multiple types to be tested; the crystal oscillator is used for providing clock signals; the distributor is used for generating enable signals, generating reset signals according to the enable signals and providing the generated enable signals, the reset signals and the clock signals provided by the crystal oscillator and the testing information provided by the MCU for the corresponding control panels connected with the liquid crystal display modules of the multiple types to be tested; each control panel is used for turning on the corresponding liquid crystal display module when receiving the testing information, provided by the distributor, of the liquid crystal display module of the corresponding type to be tested, the enable signals, the reset signals and the clock signals to realize aging testing on the corresponding liquid crystal display module. The aging testing system can be suitable for testing the liquid crystal display modules of different types 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 (LCD) has the advantages of good picture quality, small size, light weight, low driving voltage, low power consumption, no radiation and relatively low manufacturing cost, and currently occupies a dominant position in the field of flat panel display. It is very suitable for use in desktop computers, palmtop computers, personal digital assistants (PersonalDigitalAssignment, 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 the liquid crysta...

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Problems solved by technology

[0004] The above-mentioned burn-in test device has the following problems: since the initialization information adapted to each type of liquid crystal display module is different, it is impossible to share the same burn-in test device to light up different types of liquid crystal display modules, that is, when the liquid crystal After the model of the display module is changed, it is necessary to re-use a burn-in test device and burn the initialization information and timing information of the burn-in test device and perform the above process of lighting up the LCD module. When the number of LCD modules is large, it is necessary to There are many aging test devices and a large workload for burning, which not only causes a lot of time, manpower, and material resources, but also has low efficiency and high cost, and the TTL signal line 12 usually includes 28 lines, and the wiring harness is very large. complex

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