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Array substrate and method for forming same, touch detection method for touch display device

An array substrate and self-capacitive touch technology, applied in the fields of array substrate and its formation, touch detection, can solve the problems of decreased touch sensitivity, decreased touch resolution, etc., to achieve a good touch experience, reduce touch The effect of response time and high detection resolution

Active Publication Date: 2017-11-10
SHANGHAI AVIC OPTOELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Normally, if you want to increase the touch resolution, the touch sensitivity will decrease, and if you increase the touch sensitivity, the touch resolution will decrease

Method used

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  • Array substrate and method for forming same, touch detection method for touch display device
  • Array substrate and method for forming same, touch detection method for touch display device
  • Array substrate and method for forming same, touch detection method for touch display device

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Experimental program
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Embodiment Construction

[0020] The inventor analyzed the in-cell touch screen based on the self-capacitance principle in the prior art, and found that in the in-cell touch screen based on the self-capacitance principle, the size of each self-capacitance touch electrode on the array substrate is consistent. figure 1 is a schematic diagram of an existing array substrate, such as figure 1 As shown, a plurality of electrodes 101 with the same area are provided in the conventional array substrate, and the electrodes 101 are electrically connected to the chip 104 through wires 103 in one-to-one correspondence. Wherein, each trace 103 is electrically connected to a corresponding electrode 101 through a via hole 102 on an insulating layer (not shown).

[0021] In order to ensure higher touch sensitivity, the size of existing self-capacitance touch electrodes is usually relatively large. For example figure 1 In the electrode 101 in, the length of each side is about 4 mm. If a finger is used for touch, sinc...

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PUM

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Abstract

The disclosure provides an array substrate and a method for forming the same, a method for detecting a touch-control operation of a touch-control display apparatus. The array substrate includes: a self-capacitance touch-control layer, which also serves as a common electrode layer; the self-capacitance touch-control layer includes multiple first electrodes and multiple second electrodes, where the first electrodes are smaller in area than the second electrodes; the multiple first electrodes form multiple electrode groups each of which includes at least two of the first electrodes, where the electrode groups and the second electrodes are same in external shape. Accordingly, touch resolution and touch sensitivity of the array substrate may both reach a high level.

Description

technical field [0001] The present invention relates to the display field, in particular to an array substrate and a forming method thereof, and a touch detection method of a touch display device. Background technique [0002] Liquid crystal display (liquid crystal display, LCD) or organic light-emitting diode (Organic Light-Emitting Diode, OLED) display has the advantages of low radiation, small size and low power consumption, etc., and is widely used in notebook computers, personal digital assistants (Personal Digital Assistants). Assistant, PDA), flat-screen TV, or information products such as mobile phones. [0003] Display technology integrated with touch technology has gradually spread into people's lives. At present, touch screens can be divided into three types according to their composition structures: external touch screens, surface-covering touch screens, and built-in touch screens. Among them, the embedded touch screen embeds the touch electrodes of the touch s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/044G02F1/13338G06F3/0412G06F3/04164G06F3/04166G06F3/0443G06F3/0448G06F2203/04103
Inventor 金慧俊黄忠守叶松
Owner SHANGHAI AVIC OPTOELECTRONICS
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