Liquid crystal panel, liquid crystal module and method for clarifying reasons resulting in poor screen images thereof

Abstract

The invention discloses a liquid crystal panel which comprises a pixel area and a test short-circuiting bar area arranged at the periphery of the pixel area, wherein the short-circuiting bar area is provided with a plurality of first switch circuits, a plurality of scanning signal test points, a public electrode test point, a plurality of first unidirectional circuits or second switch circuits, and a plurality of data signal test points; scanning signal lines are connected with the scanning signal test points by the first switch circuits; data signal lines are connected with the data signal test points by the first unidirectional circuits or second switch circuits; and a public electrode is connected with a public electrode test point. The invention also discloses a method for clarifying reasons resulting in poor screen images of a liquid crystal module. Through the way, by using the liquid crystal panel disclosed by the invention, an effect of saving cutting equipment and a process of cutting a test lead of the short-circuiting bar area in the manufacturing process of assembly can be achieved, so that in the subsequent production stages after the manufacturing process of assembly, the test lead of the short-circuiting bar area can continue to be used for carrying out screen image detection, thereby improving the test accuracy of screen images.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a liquid crystal panel, a liquid crystal module and a method for clarifying the cause of its defective picture. Background technique [0002] Due to the advantages of low radiation, low power consumption and light weight of liquid crystal displays, more and more electronic products use liquid crystal displays as their display panels, such as mobile phones, computers and televisions. Wherein, a TFT (Thin Film Transistor, Thin Film Field Effect Transistor) liquid crystal display is one of the liquid crystal displays. [0003] The working principle of the thin film field effect transistor liquid crystal display is: through the appropriate voltage loading on the liquid crystal layer combined with the array glass substrate and the color filter glass substrate, the liquid crystal molecules in the liquid crystal layer are deflected under the action of voltage, and controlled by dif...

AI Technical Summary

Problems solved by technology

When the product screen is found to be defective, it is necessary to clarify whether the cause of the defect is caused by the Cell process or the Module process.

However, the test lead of the shorting bar has been cut off in the laser machine during the Cell process, and the test lead of the shorting bar in the Cell process cannot be used again to test the picture, so it is difficult to clarify the cause of the bad picture in the Module process. affect product production

On the other hand, since the test lead for the screen test has been cut by laser in the Cell process, it is impossible to check the screen of the Cell process process during the reliability assurance test of the follow-up operation, so that the quality of the product cannot be guaranteed.

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