Jig for inspecting color developing abnormity of LCD screen

Abstract

The invention discloses a jig for inspecting color developing abnormity of an LCD screen. The jig comprises a pedestal, a carrier plate, a jig plate and a pushing jig. The bottom of the jig plate sleeves a plurality of positioning columns at the surface of the pedestal by using a plurality of positioning sleeves. The carrier plate and the pushing jig respectively cross the pedestal. The inside of the carrier plate is provided with a first window. The pushing jig is connected with a pressing plate by using a push rod. The inside of the pressing plate is provided with a second window directly facing the first window. An LCD panel is disposed among positioning blocks of the carrier plate and loaded on the surface of the jig plate, the push rod drives the pressing plate to press downwardly, the periphery of the preset LCD panel is downwardly pressed by the carrier plate and upwardly supported by the jig plate, so that the preset LCD panel is bended, the state of the LCD panel is tested under the pressed condition, and defects after the LCD panel is installed are prevented.

Description

technical field [0001] The invention relates to a test fixture, especially a test fixture for abnormal color rendering of a liquid crystal screen capable of bending a liquid crystal panel to facilitate detection of defects. Background technique [0002] Before LCD panels are manufactured and sent to mid-stream and downstream assembly equipment factories, although LCD panel manufacturers will first conduct a pass rate test, they are often subject to vibrations generated by handling, repeated disassembly and assembly, and contact with the liquid crystal panel during transportation. Dust in the air, etc., lead to a decline in the actual product qualification rate of LCD panels when they are delivered to midstream and downstream manufacturers. Therefore, midstream and downstream manufacturers must still inspect the LCD panels for defects. At present, the production lines of relevant manufacturers are inspected manually, that is, using reflected or transmitted light sources to al...

AI Technical Summary

Problems solved by technology

[0002] Before LCD panels are manufactured and sent to mid-stream and downstream assembly equipment factories, although LCD panel manufacturers will first conduct a pass rate test, they are often subject to vibrations generated by handling, repeated disassembly and assembly, and contact with the liquid crystal panel during transportation. Dust in the air, etc., lead to a decline in the actual product qualification rate of LCD panels when they are delivered to midstream and downstream manufacturers. Therefore, midstream and downstream manufacturers must still inspect the LCD panels for defects.

At present, the production lines of relevant manufacturers are inspected manually, that is, using reflected or transmitted light sources to allow operators to visually detect product defects and pollutants. However, this manual inspection method often suffers from long-term repetitiveness Many human factors such as fatigue, lack of energy, emotions, etc., affect the detection efficiency; moreover, human is inevitably subjective in judgment, and has its limit in measurement accuracy, which affects the quality of detection

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