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Capacitive incell touch panel and display device

A touch screen, capacitive technology, applied in the direction of electrical digital data processing, optics, instruments, etc., can solve problems such as unfavorable production efficiency and increased production costs, improve picture quality and touch accuracy, save production costs, and reduce interaction interference effect

Active Publication Date: 2013-02-27
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

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, resulting in the need to add a new process when manufacturing the TFT array substrate, which increases the production cost and is not conducive to improving production efficiency.

Method used

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  • Capacitive incell touch panel and display device
  • Capacitive incell touch panel and display device
  • Capacitive incell touch panel and display device

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Embodiment Construction

[0020] At present, the liquid crystal display technologies that can realize wide viewing angles mainly include In-Plane Switch (IPS, In-PlaneSwitch) technology and Advanced Super Dimension Switch (ADS, Advanced Super Dimension Switch) technology; among them, ADS technology uses slit electrodes in the same plane The electric field generated by the edge 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 working efficiency of the liquid crystal. And increase the light transmission efficiency. Advanced ultra-dimensional field conversion technology can improve the picture quality of TFT-LCD products, and has the advantages of high resolution, high transmittance, low power consumption, wide viewing angle, high aperture ratio, low...

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Abstract

The invention discloses a capacitive incell touch panel and a display device. An integrally connected common electrode layer in a TFT (thin film transistor) array substrate is divided to form touch control induction electrodes and touch control drive electrodes that are insulated from one another. The TFT array substrate is provided with metal drive electrodes and metal induction electrodes that are electrically connected with the corresponding touch control drive electrodes and touch control induction electrodes respectively, so that the resistance of the touch control drive electrodes and the resistance of the touch control induction electrodes are decreased. The touch control drive electrodes and the touch control induction electrodes are driven in a time-sharing manner, so that a touch control function and a display function are realized. According to the touch panel, a structure of the common electrode layer is changed to realize the touch control function. The touch panel can be manufactured without additional processes on the basis of the existing TFT array substrate preparation process. The production cost is saved, and the production efficiency is improved. In addition, as the time-sharing drive touch control and display functions are adopted, the mutual interference can be reduced, and the image quality and touch control 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 InCell 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. , The module is thicker 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 co...

Claims

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Application Information

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IPC IPC(8): G06F3/044G02F1/1333
Inventor 任涛董学王海生丁小梁刘红娟
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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