Multi-point touch grapheme capacitive touch screen and production method thereof

A capacitive touch screen and graphene technology, applied in the direction of electrical digital data processing, instruments, data processing input/output process, etc., can solve the problems of inability to realize multi-touch and achieve excellent performance

Inactive Publication Date: 2013-08-07
无锡力合光电石墨烯应用研发中心有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the deficiencies of the prior art, the present invention provides a graphene capacitive touch screen and a p

Method used

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  • Multi-point touch grapheme capacitive touch screen and production method thereof
  • Multi-point touch grapheme capacitive touch screen and production method thereof
  • Multi-point touch grapheme capacitive touch screen and production method thereof

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preparation example Construction

[0088] In addition, the present invention also discloses a preparation method of the capacitive touch screen, comprising the following steps:

[0089] (1) providing two substrates 123;

[0090] (2) Prepare a graphene transparent conductive film 124, and transfer the graphene transparent conductive film 124 to the substrate 123, so that the entire plate on the substrate 123 is covered with the graphene transparent conductive film 124;

[0091] (3) Depositing the metal thin film 125 on the lead electrode area 220 on the substrate obtained in step (2);

[0092] (4) patterning the two substrates obtained in step (3) on which the graphene transparent conductive film 124 and the metal film 125 are deposited sequentially, to obtain the induction plate (121, 122); wherein, the pattern extends along the first direction is the first sensing plate 121, and the pattern extending along the second direction is the second sensing plate 122;

[0093] (5) Bond the first sensing board 121 and...

Embodiment 1

[0097] A capacitive touch screen capable of multi-touch operation based on graphene transparent conductive film, including from bottom to top:

[0098] The substrate 1223 of the second induction board 122, the graphene transparent conductive film 1224 of the second induction board 122, the metal film 1225 of the lead electrode area of ​​the second induction board 122;

[0099] OCA optical glue 130;

[0100] The substrate 1213 of the first induction board 121, the graphene transparent conductive film 1214 of the first induction board 121, the metal film 1215 of the lead electrode area of ​​the first induction board 121;

[0101] OCA optical glue 130;

[0102] and a glass cover 110;

[0103] Wherein, the leads of the lead electrode regions 220 of the first sensing board 121 and the second sensing board 122 are connected to the IC chip 140 through the flexible circuit board 150 .

[0104] Figure 5 It is a schematic cross-sectional structure diagram of the capacitive touch sc...

Embodiment 2

[0113] A capacitive touch screen capable of multi-touch operation based on a graphene transparent conductive film, the difference from Embodiment 1 is that the order of the second sensing board and the first sensing board is reversed, and the capacitive touch screen is composed of the following Supreme includes, in order:

[0114] The substrate 1213 of the first induction board 121, the graphene transparent conductive film 1214 of the first induction board 121, the metal film 1215 of the lead electrode area of ​​the first induction board 121;

[0115] OCA optical glue 130;

[0116] The substrate 1223 of the second induction board 122, the graphene transparent conductive film 1224 of the second induction board 122, the metal film 1225 of the lead electrode area of ​​the second induction board 122;

[0117] OCA optical glue 130;

[0118] and a glass cover 110;

[0119] Wherein, the lead wires of the lead electrode areas of the first sensing board 121 and the second sensing bo...

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Abstract

The invention relates to a grapheme capacitive touch screen, wherein a transparent conductive film of the touch screen is formed by two layers of grapheme films with different pattern directions in an attachment mode. The grapheme capacitive touch screen achieves a multi-point touch function; remarkably reduces production cost of the touch screen; avoids damage caused by polyethylene terephthalate (PET) base material bending during processing; and eliminates the complex and high-cost yellow light manufacturing process, and is fast, convenient and efficient in the production process due to the fact that only laser direct writing etching or metal mask and reactive ion etching is adopted in the forming process of sensing electrode patterns in a window touch area.

Description

technical field [0001] The present invention relates to a capacitive touch screen and a preparation method thereof, in particular to a graphene film-based capacitive touch screen capable of multi-touch function and a preparation method thereof, and further relates to a graphene transparent conductive film as an electrode A multi-touch capacitive touch screen made of materials and a preparation method thereof belong to the technical field of touch screens. Background technique [0002] The touch screen is an input device that can facilitate the interaction between people and computers and other portable mobile devices. The multi-touch technology can form a touch screen (screen, desktop, wall, etc.) or touch panel, and accept human-computer interaction operations from multiple points on the screen at the same time. Users can perform single-point touch with both hands, or touch the screen with different gestures such as single-click, double-click, pan, press, scroll, and rotat...

Claims

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Application Information

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IPC IPC(8): G06F3/044
Inventor 刘志斌杨晓晖黄海东赵斌吴勇金晓
Owner 无锡力合光电石墨烯应用研发中心有限公司
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