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Flexible conductive film

A flexible conductive and thin-film technology, applied in carbon-silicon compound conductors, electrical digital data processing, instruments, etc., can solve the problems of hard surface treatment, low conductivity, and yellowish color of ITO, and achieve sensitive touch response and high conductivity. , the effect of high light transmittance

Active Publication Date: 2013-08-07
CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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Problems solved by technology

The main reasons are: the color of ITO is yellowish, the conductivity is low, brittle, chemically unstable, toxic, and the price is rising day by day due to the scarcity of indium.
[0004] In addition, the current ITO resistive touch screens on the market use the principle of pressure-sensing control. Due to the disadvantage of being fragile, the surface treatment of ITO screens is very hard. sensitive

Method used

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  • Flexible conductive film

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with drawings and embodiments.

[0019] A flexible conductive film, comprising two layers of flexible transparent films, two layers of graphene conductive layers are arranged between the two layers of flexible transparent films, and multiple layers of graphene conductive layers for isolating two layers of graphite are arranged between the two layers of graphene conductive layers. Transparent insulating dots for vinyl conductive layers.

[0020] The transparent insulating points are ultraviolet curable glue particles.

[0021] The graphene conductive layer is composed of one to ten layers of graphene.

[0022] The graphene is pure graphene, and the graphene is grown in a gaseous carbon source and protection conditions by chemical vapor deposition, and then the grown graphene is transferred to a flexible transparent film.

[0023] The graphene is doped graphene, and the graphene is grown under the cond...

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Abstract

A flexible conductive film, which relates to a conductive film, comprises two layers of flexible transparent films, two graphene conductive layers are arranged between the two layers of flexible transparent films, transparent insulating points are arranged between the two graphene conductive layers, and the flexible conductive film can be used in the production of resistive touch screens. Since the invention adopts graphene to replace ITO (indium tin oxide) as the material of the conductive film and the transparent insulating points are arranged between the two graphene conductive layers, when no pressure is applied, the two graphene conductive layers are separated from each other under the support of the transparent insulating points; after pressure is applied, the two graphene conductive layers are in contact with each other to conduct at the position where pressure is applied, so that an electric signal is generated; and the touched position is detected by a control circuit, so that touch operation is conducted. The touch screen made of graphene has the advantages of sensitive touch response, high light transmittance, high conductivity, low cost and environment-friendliness.

Description

technical field [0001] The invention relates to a conductive film, in particular to a conductive film used for making a resistive touch screen. Background technique [0002] Touch screen is currently the most simple, convenient and natural way of human-computer interaction. It gives multimedia a new look and is an attractive new multimedia interactive device. It is mainly used in public information query, automated office, industrial control, Military command, electronic games, ordering songs and dishes, multimedia teaching, real estate pre-sale, etc. Transparent electrodes are the core components of touch screens, and transparent electrode technology has therefore become one of the current important research fields. [0003] The conductive film used in the leading resistive touch screen products currently on the market is made of indium tin oxide (Indium Tin Oxide, ITO). With the development of science and technology, the demand for transparent electrodes is increasing, a...

Claims

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Application Information

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IPC IPC(8): H01B1/04G06F3/045
Inventor 邵丽史浩飞张为国李占成刘海燕杜春雷
Owner CHONGQING INST OF GREEN & INTELLIGENT TECH CHINESE ACADEMY OF SCI
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