Touch screen manufacturing method, touch screen and displaying device

A touch screen and touch electrode technology, which is applied to devices for coating liquid on surfaces, input/output processes of data processing, instruments, etc., can solve the problem of increasing the roughness and process difficulty of metal grid electrodes and affecting touch screen touch performance. , low adhesion and other problems, to achieve the effect of improving light transmittance, not easy to open circuit, and improving hydrophilicity

Inactive Publication Date: 2017-05-10
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although increasing the thickness of the metal line can reduce the square resistance of the metal grid electrode, it will increase the roughness and process difficulty of the metal grid electrode at the same time, so making the line width of the metal grid electrode thinner becomes a solution to the metal grid electrode penetration. One of the effective ways for rate and square resistance problems
In addition, the metal nanowire transparent electrode usually has low adhesion on the touch screen substrate. Under the bending stress of the flexible touch screen, the metal nanowire transparent electrode is easy to detach from the substrate, which will affect the touch performance of the touch screen to a certain extent.

Method used

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  • Touch screen manufacturing method, touch screen and displaying device
  • Touch screen manufacturing method, touch screen and displaying device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] This embodiment provides a method for manufacturing a touch screen, including:

[0046] Step S10: modifying the surface of the substrate to make the surface of the substrate hydrophilic.

[0047] This step specifically includes: Step S101: On the substrate 1 of polyurethane material (PET), coat the organic silicon anti-fog transparent coating 2 of hydrophilicity (such as figure 2 shown).

[0048] Wherein, the coating thickness of the hydrophilic silicone anti-fog transparent coating 2 is 1-3 μm. It should be noted that the substrate 1 can also be made of other polymer transparent and flexible materials, such as PMMA (polymethyl methacrylate) or PVC (polyvinyl chloride).

[0049] Step S102: Curing the hydrophilic silicone anti-fog transparent coating 2 at a temperature of 90° C. to 110° C.

[0050]The surface of the substrate 1 is modified by coating the hydrophilic silicone anti-fog transparent coating 2, which can increase the hydrophilicity of the surface of the o...

Embodiment 2

[0062] This embodiment provides a touch screen, which is prepared by the preparation method in Embodiment 1. like Figure 7 As shown, the substrate 1 and the touch electrodes 4 formed on the substrate 1 are included. The surface of the substrate 1 is hydrophilic; the touch electrodes 4 are made of graphene composite nano-silver material, and the touch electrodes 4 are grid-shaped.

[0063] Preferably, the substrate 1 is made of polyurethane material, the surface of the substrate 1 is formed with a hydrophilic silicone anti-fog transparent coating 2, and the line width of the touch electrode 4 is greater than or equal to 3 μm and less than or equal to 5 μm. The hydrophilic silicone anti-fog transparent coating 2 can make the hydrophobic substrate 1 have good hydrophilicity, so that the graphene composite nano-silver paste can be printed on the substrate by inkjet under the effect of "coffee ring" Lines with a thinner line width are formed on the substrate 1, which not only imp...

Embodiment 3

[0066] This embodiment provides a display device, including the touch screen in Embodiment 2.

[0067] By adopting the touch screen in Embodiment 2, not only the light transmittance of the display device is improved, but also the touch performance of the display device is improved.

[0068] The display device provided by the present invention can be any product or component with a display function, such as a liquid crystal panel, a liquid crystal TV, a monitor, a mobile phone, a navigator, and the like.

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Abstract

The invention provides a touch screen manufacturing method, a touch screen, and a displaying device. The touch screen manufacturing method includes: a step S10, modifying a substrate surface so as to allow the substrate surface to possess hydrophilic performance; and a step S11, adopting an ink-jet printing method to print graphene composite nano silver slurry on a substrate of the step S10 so as to form a latticed touch control electrode. The graphene composite nano silver touch control electrode acquired by the touch screen manufacturing method has a small wire width, has lower sheet resistance and excellent flexibility, and is low in manufacturing cost; the manufacturing precision of the touch control electrode is improved; a larger grid width can be acquired, and the higher light transmittance can be achieved; and in addition, the adhesive force of the graphene composite nano silver on the substrate surface is enhanced, the conductivity of the raphene composite nano silver touch control electrode is excellent, and circuit break can be avoided.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method for preparing a touch screen, a touch screen and a display device. Background technique [0002] The touch electrodes of traditional flexible touch screens usually use ITO (indium tin oxide) metal oxide film. The ITO film 5 has the brittleness of ceramics. When the strain is 2-3%, the ITO film 5 will crack and break. Under the conditions of the cyclic strain test, the microcracks on the surface of the ITO film 5 will continue to grow, resulting in a sharp decrease in the conductivity of the ITO film 5 . The ceramic brittleness of ITO film 5 greatly limits its application in flexible electronic devices. In addition, the surface of the ITO film 5 will have microcracks during production, transportation and assembly, and the touch electrode formed by the ITO film 5 has a large square resistance, which affects its electrical performance, which will also increase the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/041G06F2203/04102G06F2203/04103B05D5/00B05D5/04B05D5/12B05D2503/00B05D2518/12G06F2203/04112B05D3/007
Inventor 张绪杰张明郑启涛张贵玉田健王静
Owner BOE TECH GRP CO LTD
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