CN204288181U

CN204288181U - A kind of Graphene capacitance plate

Info

Publication number: CN204288181U
Application number: CN201420570602.6U
Authority: CN
Inventors: 金虎; 尉长虹; 陈亚
Original assignee: 2D CARBON (CHANGZHOU) TECH Co Ltd
Current assignee: 2D CARBON (CHANGZHOU) TECH INC., LTD.
Priority date: 2014-09-29
Filing date: 2014-09-29
Publication date: 2015-04-22
Anticipated expiration: 2024-09-29

Abstract

The utility model discloses a kind of Graphene capacitance plate, comprise the silica gel substrate layer, the first Graphene circuit layer and the OCA glue-line that set gradually; And the FPC to be connected with the first Graphene circuit layer by the first conductive double sided adhesive tape layer.The utility model selects silica gel as the substrate of Graphene, it can be used as superthin structure, just form the film that a transparency is greater than 80%, use this as base material, grapheme material transfer is got on, make microcircuit by laser etching technology again, after then utilizing conducting resinl nation to determine FPC, namely form the capacitive touch screen possessing super flexible nature.

Description

A kind of Graphene capacitance plate

Technical field

The utility model relates to a kind of Graphene capacitance plate.

Background technology

Due to the premium properties of Graphene, the research of Graphene capacitance plate is the emphasis of current Graphene application.Graphene film in current Graphene capacitance plate is all transfer to similar on the material of PET etc., and it is not flexible, and the performance such as high-low temperature resistant and resistance to ozone, resistance to ultraviolet, radiation hardness is not good simultaneously, have impact on the application of capacitance plate.

Utility model content

The purpose of this utility model is to provide a kind of Graphene capacitance plate of softness.

The technical scheme realizing the utility model object is a kind of Graphene capacitance plate, comprises the silica gel substrate layer, the first Graphene circuit layer and the OCA glue-line that set gradually; And the FPC to be connected with the first Graphene circuit layer by the first conductive double sided adhesive tape layer.OCA glue, Optically Clear Adhesive, for the extraordinary double faced adhesive tape of cementing transparent optical element (as camera lens etc.), the abbreviation of FPC, Flexible Printed Circuit, flexibility wiring board.

Graphene capacitance plate also comprises the cover plate that covering plaster is combined in OCA glue-line another side.

Graphene capacitance plate also comprises the second Graphene circuit layer to N Graphene circuit layer, the 2nd OCA glue-line to N OCA glue-line and the second conductive double sided adhesive tape layer to N conductive double sided adhesive tape layer, and N is natural number, N >=2; Between described adjacent OCA glue-line and Graphene circuit layer, layer of silica gel is set; Described FPC is connected with whole Graphene circuit layers with by each layer conductive double sided adhesive tape layer.

The thickness of described silica gel substrate layer is 0.1mm ~ 3mm; The thickness of described each layer OCA glue-line is 0.025 ~ 0.175mm; The thickness of described each layer conductive double sided adhesive tape layer is 0.03-0.3mm.

Described cover plate is the one in silica gel, PET, PC, glass and PMMA.

Have employed technique scheme, the utility model has following beneficial effect: (1) silicon rubber is a kind of macromolecular material, there is fabulous high temperature resistant (180-200 DEG C) and low temperature resistant (-40-60 DEG C) performance, there is splendid rebound resilience and permanent strain little (200 DEG C are not more than 50% in 48 hours), voltage breakdown is (20-25KV/mm), resistance to ozone, resistance to ultraviolet, the features such as radiation hardness, the utility model selects silica gel as the substrate of Graphene, it can be used as superthin structure, just form the film that a transparency is greater than 80%, use this as base material, grapheme material transfer is got on, microcircuit is made again by laser etching technology, then after utilizing conducting resinl nation to determine FPC, namely the capacitive touch screen possessing super flexible nature is formed.

(2) touch screen of the utility model owing to being soft-surface, therefore, it is possible to possess touch-control feel for user provides, improves a traditional capacitance screen just hard plane, does not have the defect of concave-convex hand feeling.

(3) in the making of traditional Graphene capacitance plate, connection for Graphene circuit and circuit board is all the conducting film adopted, such as ACF, this kind of conducting film only has the electric conductivity in a direction, namely longitudinally can conduct electricity, laterally non-conductive, the principle of its conduction utilizes pressure to make conductive gold spacer break to conduct electricity, and is therefore all to adopt hot-pressing bonding fixed.And the utility model have employed soft silica gel as substrate, hot-pressing bonding cannot be adopted fixed, also because conductive gold spacer cannot be made to break, therefore ACF conducting film can not be used, otherwise yield can be caused poor, so adopt homogeneous, in length and breadth to the two-sided conductive glue slice all conducted electricity, then go out the shape corresponding with the pin pin of Graphene circuit layer with laser-induced thermal etching and just Graphene circuit layer and FPC can be coupled together.

(4) the utility model can also arrange the cover plate that user protects Graphene circuit not to be scraped off, and the material of cover plate can adopt silica gel, PET, PC, glass, PMMA etc. according to demand.

Accompanying drawing explanation

In order to make content of the present utility model more easily be clearly understood, below according to specific embodiment also by reference to the accompanying drawings, the utility model is described in further detail, wherein

Fig. 1 is the first structural representation of the present utility model.

Fig. 2 is the second structural representation of the present utility model.

Silica gel substrate layer 1, first Graphene circuit layer 2, OCA glue-line 3, a first conductive double sided adhesive tape layer 4, FPC5, cover plate 6, second Graphene circuit layer 7, the 2nd OCA glue-line 8, second conductive double sided adhesive tape layer 9.

Embodiment

(embodiment 1)

See Fig. 1, the Graphene capacitance plate of the present embodiment is the capacitance plate of a layer graphene circuit, the Graphene capacitive touch screen of single-point touch function.As shown in Figure 1, silica gel substrate layer 1, the first Graphene circuit layer 2, an OCA glue-line 3 and the cover plate 6 that set gradually is comprised; And the FPC5 to be connected with the first Graphene circuit layer 2 by the first conductive double sided adhesive tape layer 4.The thickness of silica gel substrate layer 1 is 0.1mm ~ 3mm, changes silica gel content as required and controls hardness and transparency; The thickness of the one OCA glue-line 3 is 0.025 ~ 0.175mm; The thickness of the first conductive double sided adhesive tape layer 4 is 0.03-0.3mm.Cover plate 5 is the one in silica gel, PET, PC, glass and PMMA, and different cover plate materials can adapt to different demands, silica gel cover plate: for the manufacture of Full silica gel structure, can bend arbitrarily and recover shape.PET, PC: for plastic construction, resist and fall, shockproof function; Ultra-thin glass: both can bend, retains again the appearance of glass; Glass: have glass appearance effect, have shockproof function again, crash resistance can be superior.

Method for making is:

Step one: growing graphene conducting film;

Step 2: silica gel pre-service: pellosil material is dewatered through weak base cleaning, pure water cleaning showers, Ultrasonic Cleaning, air knife, forms clean dustless material after baking operation;

Step 3: the grapheme conductive film of step one is transferred on the pellosil material of step 2;

Step 4: etch capacitance touching control circuit in the grapheme conductive film of step 3, forms Graphene circuit layer; Use drafting instrument design capacitance touch sensing figure, the typical IC designs rules such as the point control of figure compatible with single, multiparty control, sheet template laser-induced thermal etching is set, adopt infrared ray fibre laser carry out circuit processing to the graphene layer on gel silica membrane and draw pin pin, make it to be formed the transparent circuitry layer possessing capacitance plate function;

Step 5: by conductive double sided adhesive tape sticker on Graphene circuit layer: use drafting instrument design conductive double sided adhesive tape pin glue pattern, the spacing of pattern and touch sensing figure, size is corresponding, what use carbon dioxide laser equipment to conductive double sided adhesive tape is laser-cut into pin pin, uses and has the abutted equipment of meticulous alignment device to be attached on the corresponding pin pin of the Graphene circuit layer of step 4;

Step 6: paste FPC on conductive double sided adhesive tape: will the FPC of capacitance touching control IC and other electronic devices and components be posted under the observation of magnifier, use two-dimensional stage adjustment bonding position, the pin pin of the pin pin on FPC and capacitive transducer is aimed at one by one, pastes on the pin pin of conductive double sided adhesive tape formation.

Step 7: the product of step 6 is fitted to cover plate materials surface by OCA glue-line.

(embodiment 2)

See Fig. 2, what show in figure is the Graphene capacitance plate of the two point touch controllable function of two layer graphene circuit layers.Based on the principle of embodiment 1, also comprise the second Graphene circuit layer 7, the 2nd OCA glue-line 8 and the second conductive double sided adhesive tape layer 9; Between an adjacent OCA glue-line 3 and the second Graphene circuit layer 7, layer of silica gel is set; FPC4 is connected with two-layer Graphene circuit layer with by each two-layer conductive double sided adhesive tape layer.

By that analogy, the Graphene capacitance plate of the multi-point touch function comprising multi-layer graphene circuit layer can also be obtained.

Above-described specific embodiment; the purpose of this utility model, technical scheme and beneficial effect are further described; be understood that; the foregoing is only specific embodiment of the utility model; be not limited to the utility model; all within spirit of the present utility model and principle, any amendment made, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.

Claims

1. a Graphene capacitance plate, is characterized in that: comprise the silica gel substrate layer (1), the first Graphene circuit layer (2) and the OCA glue-line (3) that set gradually; And the FPC (5) to be connected with the first Graphene circuit layer (2) by the first conductive double sided adhesive tape layer (4).

2. a kind of Graphene capacitance plate according to claim 1, is characterized in that: also comprise the cover plate (6) that covering plaster is combined in OCA glue-line (3) another side.

3. a kind of Graphene capacitance plate according to claim 2, it is characterized in that: also comprise the second Graphene circuit layer (7) to N Graphene circuit layer, the 2nd OCA glue-line (8) to N OCA glue-line and the second conductive double sided adhesive tape layer (9) to N conductive double sided adhesive tape layer, N is natural number, N >=2; Between described adjacent OCA glue-line and Graphene circuit layer, layer of silica gel is set; Described FPC (4) is connected with whole Graphene circuit layers with by each layer conductive double sided adhesive tape layer.

4. a kind of Graphene capacitance plate according to claim 3, is characterized in that: the thickness of described silica gel substrate layer (1) is 0.1mm ~ 3mm; The thickness of described each layer OCA glue-line is 0.025 ~ 0.175mm; The thickness of described each layer conductive double sided adhesive tape layer is 0.03-0.3mm.

5. a kind of Graphene capacitance plate according to claim 4, is characterized in that: described cover plate (5) is silica gel, one in PET, PC, glass and PMMA.