plane switching liquid crystal display (IPSLCD) with touch control function

Abstract

The invention relates to aplane switching liquid crystal display (IPSLCD) with a touch control function, which mainly comprises a liquid crystal layer, an active matrix transistor base plate, a color filter (CF) base plate and an electrode sensing layer, wherein the active matrix transistor base plate is provided with an electrode pair; the electrode sensing layer can be arranged at the upper part or the lower part of the CF base plate; and the electrode sensing layer can be also divided into two parts to be respectively arranged at the upper part and the lower part of the CF base plate.

Description

technical field [0001] The invention relates to a touch panel, in particular to a plane switching liquid crystal display with a touch function. Background technique [0002] Touch panels or touch screens are increasingly used in electronic devices, especially portable or handheld electronic devices, such as personal digital assistants (PDAs) or mobile phones. The touch panel is an application technology that combines touch technology (such as resistive, capacitive, and optical touch technology) with a display panel. Due to the mature development of liquid crystal display (LCD) panel technology in recent years, it has become a trend to combine touch technology with liquid crystal display panels (ie, liquid crystal touch panels). [0003] figure 1 Display structure 9 of a traditional liquid crystal touch panel, as disclosed in US Patent No. 6,259,490 entitled "Liquid Crystal Display Device"; or as disclosed in US Patent Publication No. 20070242054A1, entitled "Light Transmis...

AI Technical Summary

Problems solved by technology

For this kind of conventional liquid crystal touch panel structure 9, since its counter electrode layer 3 and sensing electrode layer 6 are all located above the liquid crystal layer 2, the background capacitance (background capacitance) caused by it is very high, which will affect the sensing. Measuring electrode layer 6 causes interference, which reduces the touch performance and accuracy of the liquid crystal touch panel

Furthermore, for the traditional liquid crystal touch panel structure 9, the electric field in the liquid crystal layer 12 will also affect the touch performance and precision of the sensing electrode layer 6

[0004] In view of the fact that the performance and precision of traditional LCD touch panels cannot be improved, there is an urgent need to propose a novel LCD touch panel to improve touch performance and precision

[0005] This shows that above-mentioned existing liquid crystal display obviously still has inconvenience and defect in structure and use, and demands urgently further improving

In order to solve the above-mentioned problems, the relevant manufacturers have tried their best to find a solution, but for a long time no suitable design has been developed, and the general product has no suitable structure to solve the above-mentioned problems. This is obviously the relevant industry. Urgent problem

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