Liquid crystal display (LCD) test fixture and test method thereof

Abstract

The invention relates to a liquid crystal display (LCD) test fixture and a test method thereof. The LCD test fixture comprises a test bench, a test circuit board arranged on the test bench and a clamping mechanism rotatably arranged on the test bench; and in the test process, an electric connection test is realized by overturning the clamping mechanism to clamp an LCD to be tested and the test circuit board. The test method of the LCD test fixture comprises the following steps: 1, overturning and opening the clamp plate of the clamping mechanism on the test bench; 2, placing the LCD to be tested on the test bench, and placing the circuit board of the LCD to be tested on the test circuit board correspondingly so that contacts on the circuit board of the LCD to be tested are in one-to-one correspondence with the test points on the test circuit board; 3, overturning the clamp plate, then covering the clamp plate on the test bench, pressing the clamp plate above the circuit board of the LCD to be tested and the test circuit board; and 4, utilizing the clamp plate to clamp the contacts on the circuit board of the LCD to be tested and the test points on the test circuit board so as to enable the contacts to be contacted and conducted with the test points, and carrying out test signal transmission, thus realizing test operations.

Description

technical field [0001] The invention relates to a test fixture, in particular to an LCD screen test fixture and a test method thereof. Background technique [0002] With the continuous development of flat panel display technology, LCD is widely used in various Electronic products, such as mobile phones, MP3, digital cameras, notebook computers and so on. Usually, before the packaging process, the LCD screen will be tested for lighting and other tests, and the test signal will be generated by the test fixture and sent to the LCD screen to check the quality of the LCD screen. Existing LCD screen test fixtures mainly use flat pressure contact conduction for testing. However, the pressing force of the existing flat pressing method is not easy to control. If the pressing force is too small, it is easy to make the contact incomplete during the test. If the test is inaccurate, if it is too large, the risk of damage will easily occur; and the existing test fixture has a relatively...

AI Technical Summary

Problems solved by technology

Existing LCD screen test fixtures mainly use the flat pressure method to conduct the test. However, the pressing force of the existing flat pressing method is not easy to control, and the pressing force is too small to make the contact incomplete during the test. The test is inaccurate, and if it is too large, it is easy to cause damage risk; and the existing test fixture structure is relatively complicated, and the operability is not good

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