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Graphene capacitive screen and manufacturing method thereof

A production method and graphene technology, which are applied in the input/output process of electrical digital data processing, instruments, and data processing, etc., can solve the problems affecting the application of capacitive screens, insufficient flexibility, high and low temperature resistance, ozone resistance, ultraviolet resistance, and radiation resistance. Poor performance, etc.

Inactive Publication Date: 2015-02-18
2D CARBON CHANGZHOU TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The graphene film in the current graphene capacitive screen is transferred to a material similar to PET, which is not flexible enough. At the same time, it has poor performance in high and low temperature resistance, ozone resistance, ultraviolet resistance, and radiation resistance, which affects the capacitive screen. Applications

Method used

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  • Graphene capacitive screen and manufacturing method thereof
  • Graphene capacitive screen and manufacturing method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] See figure 1 , the graphene capacitive screen in this embodiment is a capacitive screen with a layer of graphene circuit, and a graphene capacitive touch screen with a single-touch function. like figure 1 As shown, it includes a silicon base layer 1, a first graphene circuit layer 2, a first OCA adhesive layer 3 and a cover plate 6 arranged in sequence; and is connected to the first graphene circuit layer 2 by a first conductive double-sided adhesive layer 4 The FPC5. The thickness of the silica gel base layer 1 is 0.1 mm to 3 mm, and the composition of the silica gel can be changed to control the hardness and transparency as required; the thickness of the first OCA adhesive layer 3 is 0.025 mm to 0.175 mm; the thickness of the first conductive double-sided adhesive layer 4 is 0.03- 0.3mm. The cover plate 5 is one of silica gel, PET, PC, glass and PMMA. Different cover plate materials can meet different needs. Silicone cover plate: it is used to make an all-silicone ...

Embodiment 2

[0040] See figure 2 , which shows a graphene capacitive screen with two-layer graphene circuit layer and dual-touch function. Based on the principle of embodiment 1, it also includes a second graphene circuit layer 7, a second OCA adhesive layer 8 and a second conductive double-sided adhesive layer 9; the adjacent first OCA adhesive layer 3 and the second graphene circuit layer 7 A silica gel layer is arranged between them; the FPC4 is connected with two layers of graphene circuit layers through two layers of conductive double-sided adhesive layers.

[0041] By analogy, a graphene capacitive screen with a multi-touch function including multi-layer graphene circuit layers can also be obtained.

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Abstract

The invention discloses a graphene capacitive screen and a manufacturing method thereof. The capacitive screen comprises a silica gel basal layer, a first graphene circuit layer, and a first OCA layer which are arranged in sequence, and further comprises an FPC which is connected with the first graphene circuit layer through a first conductive double faced adhesive layer. According to the invention, the silica gel is selected and used as the substrate of the graphene, and adopted as an ultrathin structure to form a thin film of which the transparency is greater than 80%; the thin film is taken as a base material; the graphene material is transferred on the base material; a microcircuit is manufactured through a laser etching technique; the FPC is bound by utilizing conductive adhesive to form the capacitive touch screen provided with super soft characteristic.

Description

technical field [0001] The invention relates to a graphene capacitive screen and a manufacturing method thereof. Background technique [0002] Due to the excellent performance of graphene, the research of graphene capacitive screen is the focus of graphene application field. The graphene film in the current graphene capacitive screen is transferred to a material similar to PET, which is not flexible enough. At the same time, it has poor performance in high and low temperature resistance, ozone resistance, ultraviolet resistance, and radiation resistance, which affects the capacitive screen. Applications. Contents of the invention [0003] The first object of the present invention is to provide a flexible graphene capacitive screen. [0004] The technical solution to realize the first purpose of the present invention is a graphene capacitive screen, comprising a silica gel base layer, a first graphene circuit layer and a first OCA adhesive layer arranged in sequence; and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
CPCG06F3/044
Inventor 金虎尉长虹陈亚
Owner 2D CARBON CHANGZHOU TECH INC
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