Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof

A bridging wire, single-layer multi-point technology, which is applied in the field of single-layer multi-touch screen sensors and its molding process, can solve the problems of low yield rate and high difficulty of alignment and binding between sensors and FPC, and achieve high yield rate, Guaranteed width and line spacing, reduced area effect

Inactive Publication Date: 2013-05-22
来宾市永典木业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] One of the technical problems to be solved by the present invention is to provide a bridge lead sensor for a single-layer multi-touch screen, so as to overcome the high difficulty and low yield rate of the existing single-layer multi-touch screen sensor and FPC alignment binding The problem
[0006] The second technical problem to be solved by the present invention is to provide a single-layer multi-touch screen bridge lead sensor forming process, so that it can overcome the difficulty of aligning and binding the sensor and FPC of the existing single-layer multi-touch screen and the problem of low yield

Method used

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  • Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof
  • Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof
  • Bridging and wire-leading sensor of monolayer multi-point touch screen and forming process thereof

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Embodiment 1

[0038] Such as figure 1 As shown, the schematic diagram of the sensor according to Embodiment 1 of the present invention includes the pattern of the ITO sensing electrode, the distribution schematic diagram of the lead wire 20 and the contact point 21 .

[0039] The sensor structure of the present embodiment is as follows:

[0040] An insulating and transparent substrate 1, which is a thin film of PET material (ITO FILM), is distributed with ITO sensing electrodes on one side of the substrate 1, and the sensing electrodes have electrode patterns that can sense multi-point human touch; the scheme of this electrode pattern Many, the present embodiment uses the shape of the planar comb, the teeth of the comb are rectangular, including the X electrode 11 and the Y electrode 12, wherein, the Y electrode 12 extends vertically along the substrate 1, but the X electrode 11 extends along the The extension direction of the Y electrodes 12 is distributed, and the comb-shaped matching pa...

Embodiment 2

[0052] Such as figure 2 Shown is a schematic diagram of Embodiment 2 of the present invention.

[0053] Compared with the previous embodiment, the biggest difference is that the insulating layer 30 is divided into two independent regions A and B along with the bridging layer. Therefore, part of the bridging point 22 is located in the area B on one side where the contact 21 is located, and the other part is located in the area A on the other side opposite to the contact 21 on the periphery of the area where the sensing electrode is located. For the X electrode 11 on the side close to the contact 21 in the B area, part of the extended lead wire 20 is connected to the contact 21, and the end of the other part is a bridging point 22; the rest (A area) of the X electrode 11, its end is a bridging point point 22;

[0054] This form, which can be called "up and down bridging" form, has two bridging areas A and B, which is characterized by greatly reducing the single-layer distribu...

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Abstract

The invention discloses a bridging and wire-leading sensor of a monolayer multi-point touch screen and a forming process thereof. The forming process is characterized by comprising the following steps: firstly, providing an insulating and transparent substrate, and etching one surface of the substrate into an induction electrode and an indium tin oxide (ITO) leading wire which extends out, wherein contacting points and bridging points for bridging connection are arranged at the tail end of the leading wire, then, keeping on forming a transparent insulating layer on the surface of the substrate, wherein the insulating layer covers all bridging points in the plane and presetting through holes at positions of the bridging points, and at last, forming a bridging layer on the substrate, the insulating layer of which is processed, wherein the bridging layer is positioned on the surface of the insulating layer or comprises the surface of the substrate, the bridging layer is communicated with the bridging points through the through holes, and the bridging and wire-leading sensor is got. Due to the fact that bridging wires exist, the contacting points of the monolayer multi-point touch screen are distributed evenly, the phenomena that the contacting points are blocked and crossed by the leading wire are avoided, the widths of the contacting points and wire distance are enlarged, binding difficulty between the contacting points and flexible printed circuit (FPC) is reduced, and yield is increased.

Description

technical field [0001] The invention relates to a touch screen sensor and its manufacturing process, in particular to a sensor applied to a single-layer multi-point touch screen and its forming process. Background technique [0002] The inductive capacitive touch screen is an electrical input device that transforms the direct touch gesture of the human body into an input signal. It has the advantages of sensitive response, good reliability, and easy mass production. Moreover, its multi-touch performance advantages are brought into play on portable devices such as smart phones, tablet computers, and digital devices, and have been widely used and developed rapidly. [0003] This type of inductive capacitive touch screen uses transparent conductive glass (ITO) as the main material for its touch sensor. ITO uses printing, etching and other processes to form special sensing electrodes, which are distributed in the human body touch area of ​​the display screen. By monitoring the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 卢镇州
Owner 来宾市永典木业有限公司
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