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Embedded touch screen, display device and production method

An embedded touch screen and display device technology, applied in static indicators, instruments, electrical digital data processing, etc., can solve the problems of low signal-to-noise ratio, small inductive capacitance, low sensitivity and accuracy of touch judgment, and achieve The effect of increased sensing capacitance, increased mutual capacitance, and improved sensitivity and accuracy

Active Publication Date: 2015-07-22
HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD +1
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The finger needs to penetrate the liquid crystal layer when touching, the sensing capacitance is small, and the signal-to-noise ratio is low, resulting in low sensitivity and accuracy of touch judgment

Method used

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  • Embedded touch screen, display device and production method
  • Embedded touch screen, display device and production method
  • Embedded touch screen, display device and production method

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Embodiment Construction

[0042] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0043] figure 2 It is a schematic structural diagram of an embedded touch screen provided by an embodiment of the present invention. see figure 2 , the in-cell touch screen includes: CF (Color Filter, color filter) substrate 21 and Array (array) substrate 22, columnar spacers 23, touch electrodes 24, OC (Optical Compensation, optical compensation) layer 25, PVX26, LCD 27. Wherein, the touch electrodes 24 include touch driving electrodes 241 and touch sensing electrodes 242 .

[0044] Among them, the columnar spacers 23 are formed on the side of the Array substrate 22 . see figure 2 , columnar spacers 23 are disposed on the PVX 26 on the side of the Array substrate 22 . That is, when manufacturing the in-cell touch screen, afte...

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PUM

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Abstract

The invention discloses an embedded touch screen, a display device and a production method, and belongs to the technical field of the display. The embedded touch screen comprises touch electrodes and a columnar spacer which is formed at the side of an array substrate; the touch electrodes are laid on the top surface, a first side surface and a second side surface of the columnar spacer, and the first side surface is opposite to the second side surface. The touch electrodes are laid on the columnar spacer, so that the surface area of the touch electrodes can be increased, the mutual capacitance between a touch driving electrode and a touch induction electrode can be increased, the induction capacitance produced when the screen is touched by fingers also can be increased, the influence of a liquid crystal layer on the touch can be alleviated, the signal-to-noise ratio can be increased, and the sensitivity and accuracy for touch judgment can be improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an embedded touch screen, a display device and a manufacturing method. Background technique [0002] With the continuous development of display technology, touch screens have gradually entered the public's field of vision. At present, touch screens can be divided into external touch screens and built-in touch screens. Among them, the display module and the touch module of the external touch screen are two relatively independent devices, and the two devices are integrated through the back-end bonding process. The embedded touch screen embeds the touch module into the display module, so that the two modules are integrated instead of two relatively independent devices, which can not only reduce the overall thickness of the module, but also greatly reduce the production cost of the touch screen , so the embedded touch screen is favored by major manufacturers. [0003] The in-cell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0412G06F3/0418G09G3/3648G06F3/0443G09G2300/0426
Inventor 操彬彬黄寅虎
Owner HEFEI XINSHENG OPTOELECTRONICS TECH CO LTD
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