Liquid crystal display panel

By adding a split ITO conductive layer on the color film substrate of the liquid crystal display panel and a common electrode combined with the TFT array substrate to connect it into a sheet, the cost and performance problems of the FFS LCD panel when implementing the anti-peeping function is solved, the touch sensitivity and viewing angle controllability are improved, and the effective anti-peeping effect is achieved.

CN114217463BActive Publication Date: 2025-03-18FUJIAN HUAJIACAI CO LTD
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Patent Information

Application Number
CN202210111910.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-01-27
Publication Date
2025-03-18
Estimated Expiration
2042-01-27

AI Technical Summary

Technical Problem

When implementing anti-peeping function, existing FFS LCD panels have problems such as increasing cost, thickness, reducing contrast and brightness, uncontrollable viewing angles, and reducing touch sensitivity.

Method used

Add an ITO conductive layer to the color film substrate of the liquid crystal display panel, and divide it into multiple touch sensing points, connect it into pieces with the common electrodes of the TFT array substrate, remove the insulating layer, control the deflection direction of the liquid crystal through the voltage of the ITO conductive layer, and change the viewing angle range to achieve the anti-sight function.

Benefits of technology

It improves touch sensitivity, reduces production process and costs, realizes the controllability of the perspective, and effectively realizes the anti-sight function.

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Abstract

The present invention relates to a liquid crystal display panel, which comprises a color filter substrate, a TFT array substrate arranged opposite to the color filter substrate, and liquid crystal located between the color filter substrate and the TFT array substrate, wherein the color filter substrate comprises a base substrate and a black matrix layer and a color resistance layer sequentially formed on the base substrate; an ITO conductive layer is arranged on the side of the color resistance layer, and the ITO conductive layer is divided to form a plurality of touch sensing points; a touch line of the TFT array substrate passes through an array pixel area, is connected to the ITO conductive layer in a vertical direction of the substrate, and is connected to a common electrode to form a sheet, and the above technical solution can not only greatly reduce the influence of the coupling of electrodes on the TFT side on the touch point, but also make the distance to the gesture touch closer, the change of the induction capacitance more obvious, and enable the IC to feedback the touch position more accurately, and is less likely to have the problem of abnormal touch error.
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