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Capacitance-type embedded touch screen and display device

A touch screen, capacitive technology, applied in identification devices, electrical digital data processing, optics, etc., can solve the problem of high cost and achieve the effect of saving production costs

Active Publication Date: 2012-12-26
BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The structural design of the above-mentioned capacitive embedded touch screen needs to use two driving chips (IC) to realize touch driving and display driving respectively, and the cost is relatively high.

Method used

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  • Capacitance-type embedded touch screen and display device
  • Capacitance-type embedded touch screen and display device
  • Capacitance-type embedded touch screen and display device

Examples

Experimental program
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Embodiment Construction

[0019] The specific implementation manners of the capacitive in-cell touch screen and the display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0020] The thickness and shape of each layer of film in the drawings do not reflect the real proportion of the TFT array substrate or color filter substrate, and the purpose is only to illustrate the content of the present invention.

[0021] A capacitive embedded touch screen provided by an embodiment of the present invention, such as figure 1 As shown, it specifically includes: a color filter substrate 1, a TFT array substrate 2, and a liquid crystal layer 3 located between the color filter substrate 1 and the TFT array substrate 2, and a plurality of pixel units arranged in a matrix are arranged on the TFT array substrate 2 4. Also includes:

[0022] At least one touch driving electrode 5 located on the side of the TFT array substrate 2 f...

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PUM

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Abstract

The invention discloses a capacitance-type embedded touch screen and a display device. At least one touch-control sensing electrode is arranged on a color film substrate; at least one touch-control driving electrode is arranged on a TFT (thin film transistor) array substrate; and the touch-control driving electrodes are electrically connected with a grid line in the TFT array substrate, wherein each touch-control driving electrode is composed of a plurality of touch-control driving sub-electrodes which are arranged in the same row and arranged between pixel cells of adjacent columns. By using the grid line connected with the touch-control drive electrodes to input a display signal as a touch-control driving signal, the touch-control function is achieved, and additionally providing an IC (integrated circuit) used for the touch-control driving is avoided, so that the manufacturing cost is reduced.

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): G06F3/044G09F9/33
CPCG06F3/0412G06F3/044G02F1/13338G06F3/0443G06F3/0446
Inventor 王海生李成董学丁小梁陈东车春城薛海林
Owner BEIJING BOE OPTOELECTRONCIS TECH CO LTD
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