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Capacitive embedded touch screen panel and display device

A touch screen, capacitive technology, applied in electrical digital data processing, optics, instruments, etc., can solve the problems of high cost, increased production cost, complex structure of TFT array substrate, etc., to save production cost, improve production efficiency, and improve the picture. The effect of quality and touch accuracy

Active Publication Date: 2013-03-06
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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Problems solved by technology

[0004] The structural design of the above-mentioned capacitive embedded touch screen needs to add a new film layer on the existing TFT array substrate, which makes the structure of the TFT array substrate relatively complicated, and also needs to add a new process when manufacturing the TFT array substrate, which reduces the production cost. increase; and the structural design of the above-mentioned capacitive embedded touch screen needs to use two driver chips (IC) to realize touch driving and display driving respectively, and the cost is also high

Method used

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  • Capacitive embedded touch screen panel and display device
  • Capacitive embedded touch screen panel and display device

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Embodiment Construction

[0020] At present, liquid crystal display technologies capable of realizing wide viewing angles mainly include In-Plane Switch (IPS, In-Plane Switch) technology and Advanced Super Dimension Switch (ADS, Advanced Super Dimension Switch) technology; among them, ADS technology passes through slits in the same plane. The electric field generated by the edge of the electrode and the electric field generated between the slit electrode layer and the plate electrode layer form a multi-dimensional electric field, so that all oriented liquid crystal molecules between the slit electrodes in the liquid crystal cell and directly above the electrodes can be rotated, thereby improving the operation of the liquid crystal. efficiency and increased light transmission efficiency. Advanced ultra-dimensional field conversion technology can improve the picture quality of TFT-LCD products, with high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low co...

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Abstract

The invention discloses a capacitive embedded touch screen panel and a display device. Touch induction electrodes are configured on a color film substrate, a whole-face-connected common electrode layer in a TFT (Thin Film Transistor) array substrate is divided into strips which are taken as touch driving electrodes, and the touch driving electrodes are driven in a time-share manner to realize a touch function and a display function. According to the touch screen panel provided by the embodiment of the invention, the structure of the common electrode layer of the TFT array substrate is changed to form the touch driving electrodes, and an additional process is not needed on the basis of a preparation process of the existing TFT array substrate, therefore, the production cost is saved, and the production efficiency is improved. Furthermore, as the touch function and the display function are implemented in the time-share driving manner, on one hand, chips for display driving and touch driving can be integrated, and thus the production cost is further lowered, on the other hand, the mutual interference of display and touch can be further decreased by the time-share driving manner, and thus the image quality and touch accuracy are improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a capacitive embedded touch screen and a display device. Background technique [0002] With the rapid development of display technology, touch screen panels (Touch Screen Panels) have gradually spread throughout people's lives. At present, touch screens can be divided into three types according to their structure: Add on Mode Touch Panel, On Cell Touch Panel, and In Cell Touch Panel. Among them, the plug-in touch screen is produced separately from the touch screen and Liquid Crystal Display (LCD), and then bonded together to form a touch-enabled LCD screen. The plug-in touch screen has high production costs and low light transmittance. Low, thick modules and other shortcomings. The embedded touch screen embeds the touch electrodes of the touch screen inside the liquid crystal display, which can reduce the overall thickness of the module and greatly reduce the production cost o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/0412G06F3/044G06F3/0445G06F3/0446G02F1/13338
Inventor 王海生董学丁小梁杨盛际刘红娟赵卫杰刘英明任涛
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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