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Touch panel, manufacturing method thereof, and touch display device

A technology of a touch panel and a manufacturing method, which are applied in the fields of semiconductor/solid-state device manufacturing, instruments, electrical digital data processing, etc., can solve the problems of noise signals generated by readout transistors, reduce aperture ratio, etc., and achieve low leakage current and switching. The effect of fast, low-noise signals

Active Publication Date: 2017-11-28
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects in the prior art, the present invention provides a touch panel and its manufacturing method, and a touch display device, which can solve the problem that setting the readout transistor will generate noise signals and greatly reduce the aperture ratio

Method used

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  • Touch panel, manufacturing method thereof, and touch display device
  • Touch panel, manufacturing method thereof, and touch display device
  • Touch panel, manufacturing method thereof, and touch display device

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Embodiment Construction

[0044] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0045] An embodiment of the present invention provides a touch panel, including a substrate, on which a plurality of rows of scanning lines and a plurality of columns of data lines are formed, and a plurality of rows of scanning lines and a plurality of columns of data lines intersect to define a plurality of touch units on the substrate. It shoul...

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PUM

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Abstract

A touch panel, a method for fabricating the same and a touch display device are disclosed. The touch panel includes touch units, each of which includes: a capacitor having a first terminal connected to a first bias voltage; a first transistor having an amorphous silicon active layer, one of a source and a drain of the first transistor is connected to a third bias voltage and the other is connected to a second terminal of the capacitor; a second transistor having an oxide semiconductor active layer, a gate of the second transistor is connected to a scan line, one of a source and a drain of the second transistor is connected to the second terminal of the capacitor and the other is connected to a data line. The touch panel further includes a light-shielding layer; an aperture portion is disposed on a part of the light-shielding layer.

Description

technical field [0001] The present invention relates to the technical field of touch display, in particular to a touch panel, a manufacturing method thereof, and a touch display device. Background technique [0002] As an implementation of in-cell (In Cell) optical touch control, in the prior art, a photo sensor (Photo Sensor) arranged in a pixel is often used to realize external touch control by sensing light shading or light reflection of a finger. [0003] Specifically, in the photosensor circuit located in each pixel unit of the touch panel, a transistor whose gate is connected to a scanning line of the row of pixels (hereinafter referred to as "readout transistor") is often provided in the prior art. , while one of the source and the drain of the transistor is connected to a data line of the column of pixels, and the other is connected to a capacitor for storing touch signals. Therefore, the transistor can realize the scanning and reading of the touch signal of each pi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044H01L21/77G02F1/1333
CPCG02F1/13338G06F3/0421G06F2203/04103H01L27/1222H01L27/1225G06F3/0412G06F3/042H01L27/14678G06F2203/04107H01L31/02164H01L31/028H01L31/0296H01L31/1136H01L31/1828H01L31/202
Inventor 吴俊纬李重君王延峰徐晓光
Owner BOE TECH GRP CO LTD
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