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Touch array substrate

A touch array and substrate technology, applied in optics, instruments, electrical digital data processing, etc., can solve the problems of metal wiring resistance, increased power consumption, insufficient charging of pixels, etc., to reduce parasitic capacitance and RC delay , Improve the effect of display quality

Inactive Publication Date: 2017-02-15
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, metal traces not only have resistance, but also have overlapping areas with other conductive layers. Generally, there is an insulating layer between the two conductors in the overlapping area, and there will be capacitance.
For LCD screens, a large RC constant will lead to insufficient charging of pixels, image differences, and poor image quality, which will also lead to increased power consumption and poor local heat dissipation of the display panel.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This embodiment improves the existing touch array substrate. like Figure 5 It is a schematic cross-sectional structure diagram of the touch array substrate of this embodiment, the second indium tin oxide layer 2 is located on the top layer of the touch array substrate, and the PV layer 8, IL layer 9, first indium tin oxide layer 1, and PLN are sequentially downward. layer 10 , ILD layer 11 , GI layer 12 , buffer layer 13 , and glass substrate 14 . A light-shielding layer (LS layer) 17 is embedded inside the buffer layer 13 , and the LS layer 17 is adjacent to the glass substrate 14 . The GI layer 12 is embedded with polyethylene, and there are a pair of positive and negative electrodes of N-type semiconductor material on both sides of the polyethylene, and the positive electrodes on each side are connected to the source and drain, and the source and drain pass through the ILD layer 11 and extends to PLN layer 10. A GE is provided between two drains in the ILD layer ...

Embodiment 2

[0039] like Figure 5 It is a schematic cross-sectional structure diagram of the touch array substrate of this embodiment, the second indium tin oxide layer 2 is located on the top layer of the touch array substrate, and the PV layer 8, IL layer 9, first indium tin oxide layer 1, and PLN are sequentially downward. layer 10 , ILD layer 11 , GI layer 12 , buffer layer 13 , and glass substrate 14 . A light-shielding layer (LS layer) 17 is embedded inside the buffer layer 13 , and the LS layer 17 is adjacent to the glass substrate 14 . The GI layer 12 is embedded with polyethylene, and there are a pair of positive and negative electrodes of N-type semiconductor material on both sides of the polyethylene, and the positive electrodes on each side are connected to the source and drain, and the source and drain pass through the ILD layer 11 and extends to PLN layer 10. A GE is provided between two drains in the ILD layer 11 . One of the drain electrodes is connected to the second i...

Embodiment 3

[0042] like Figure 5 It is a schematic cross-sectional structure diagram of the touch array substrate of this embodiment, the second indium tin oxide layer 2 is located on the top layer of the touch array substrate, and the PV layer 8, IL layer 9, first indium tin oxide layer 1, and PLN are sequentially downward. layer 10 , ILD layer 11 , GI layer 12 , buffer layer 13 , and glass substrate 14 . A light-shielding layer (LS layer) 17 is embedded inside the buffer layer 13 , and the LS layer 17 is adjacent to the glass substrate 14 . The GI layer 12 is embedded with polyethylene, and there are a pair of positive and negative electrodes of N-type semiconductor material on both sides of the polyethylene, and the positive electrodes on each side are connected to the source and drain, and the source and drain pass through the ILD layer 11 and extends to PLN layer 10. A GE is provided between two drains in the ILD layer 11 . One of the drain electrodes is connected to the second i...

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PUM

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Abstract

The invention provides a touch array substrate. According to the first structure, a groove is formed in a tin indium oxide layer in the routing direction of a sensing circuit, wherein the tin indium oxide layer is located below the sensing circuit, the groove width can be greater than the routing width of sensing circuit, and the bottom of the groove can be of a hollow structure; according to the second structure, a gap is formed in a tin indium oxide layer in the routing direction of a sensing circuit, the two sides of the gap are connected through a plurality of tin indium oxide connection parts, wherein the tin indium oxide layer is adjacent to the sensing circuit, the gap width can be greater than the routing width of the sensing circuit, the route of the sensing circuit can be located in the gap, the tin indium oxide connection parts are all located at the top of the gap, or a part of tin indium oxide connection parts can be located at the top of the gap and the other part of tin indium oxide connection parts can be located at the bottom of the gap. According to the touch array substrate, stray capacitance can be reduced obviously, the RC time delay of the circuit is reduced, the charging rate is improved, the TP working accuracy is increased and the image quality is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an LTPS-LCD touch screen with an In-cell structure. Background technique [0002] Liquid crystal display is currently the most widely used flat-panel display, and has gradually become a display device with high-resolution color screens widely used in various electronic devices such as mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or notebook computer screens. monitor. With the development and progress of liquid crystal display technology, people have put forward higher requirements for the display quality, appearance design, and human-machine interface of liquid crystal displays. Touch technology has become a hot spot for technological development because of its convenient operation and high integration. [0003] Touch Technology (Touch Technology) has developed rapidly in recent years, and a variety of touch technologies have been put int...

Claims

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Application Information

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IPC IPC(8): G02F1/1333G02F1/1362G06F3/041
CPCG02F1/13338G02F1/136286G06F3/0412
Inventor 张启沛
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD