CN203350854U - Single-chip type capacitive touch panel - Google Patents
Single-chip type capacitive touch panel Download PDFInfo
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- CN203350854U CN203350854U CN 201320409637 CN201320409637U CN203350854U CN 203350854 U CN203350854 U CN 203350854U CN 201320409637 CN201320409637 CN 201320409637 CN 201320409637 U CN201320409637 U CN 201320409637U CN 203350854 U CN203350854 U CN 203350854U
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Abstract
The utility model discloses a single-chip type capacitive touch panel. The functional regions of the single-chip type capacitive touch panel are divided into a window touch control region and a non-window region. The single-chip type capacitive touch panel structurally comprises (i) a glass cover plate, (ii) a first transparent conducting layer formed on the lower side surface of the glass cover plate and comprising a pattern in a first direction, (iii) a first electrode layer formed on the surface of the first transparent conducting layer in a non-window region range, and (iv) an ink layer which is arranged in the non-window region on the upper side of the glass cover plate and is used for forming an invisible effect of the non-window region. The single-chip type capacitive touch panel solves the problems that graphene transparent conducting layer is easy to collapse and fracture or has bubbles due to a height drop caused by the ink layer in the graphene capacitive touch panel; solves the problem that the ink layer is easy to be etched when the laser direct writing is used for etching a graphene transparent conducting thin film, and clears technical obstacles off the application of OGS (One glass solution) single-chip type capacitive touch panel structures to graphene capacitive touch panels.
Description
Technical field
The utility model belongs to the touch screen technology field, relate to a kind of monolithic capacitive touch screen, be specifically related to a kind of monolithic capacitive touch screen based on graphene film, particularly a kind ofly take the monolithic capacitive touch screen that transparent graphene conductive film is electrode material.
Background technology
Touch-screen is a kind of input equipment, can conveniently realize the reciprocation of people and computing machine and other portable mobile apparatus, the functional area of touch-screen is (functional regional division that Fig. 1 is touch-screen) as shown in Figure 1, can be divided into form Touch Zone 100 and non-viewfinder area 200, and flexible PCB FPC300 and data processing chip IC chip 400 that electrical connection is provided.In recent years, the capacitance touch screen based on tin indium oxide (ITO) transparent conductive film is widely used in mobile InterWorking Equipment, as smart mobile phone, and Portable tablet personal computer.
Along with mobile InterWorking Equipment is more and more higher to the requirement of the aspects such as screen reflecting rate, transmittance and thickness is frivolous, the capacitance touch screen that tradition adopts biplate glass (high rigidity glass cover-plate and with the glass of sensing electrode) laminating to form has been difficult to meet the demands.A kind of OGS(One of being called Glass Solution) monolithic capacitive touch screen scheme is suggested and applies, and becomes the important directions of touch-screen of new generation.
The structure of described monolithic capacitive touch screen, as shown in Fig. 2 (cross-sectional view that Fig. 2 is monolithic capacitive touch screen in prior art), comprising: glass cover-plate 10; Be printed on the ink layer 50 of glass cover-plate 10 downside surfaces in non-viewfinder area scope; Continue to be formed at the transparency conducting layer 21 of glass cover-plate 10 and ink layer 50 downsides; Be formed at the electrode layer 22 of layer at transparent layer 21 in non-viewfinder area scope; And the protective shield 40 be fitted and connected by OCA optical cement 32.The OGS monolithic capacitive touch screen, at the high rigidity cover glass cover plate back side, directly forms conduction and sensing electrode, plays the double action that touches protection and touch-control sensing with same glass simultaneously.
In prior art, ITO is for mainly as the material of transparency conducting layer being, ITO has very crisp frangible as the transparency conducting layer of capacitive touch screen, and the life-span is short; After film forming, need pyroprocessing just can there is high conductivity; The shortcomings such as raw material costliness.Therefore, find suitable ITO equivalent material and become a current difficult problem urgently to be resolved hurrily.
Graphene (Graphene) is that a kind of hexangle type be comprised of sp2 hydridization carbon atom is honey comb like two-dimensional nano material, have the transmissivity up to 97.4%, and, at visible light wave range and Wavelength-independent, transmitted spectrum is almost flat condition; And in transmitance maintains 95% scope the time, square resistance still can reach 125 Ω/, has reached the quality standard (400～900 Ω/) of industry member transparency electrode; Simultaneously, the tone of Graphene is fully colourless; Can be on touch-screen reproduced image color verily.
But Graphene is applied to the OGS monolithic capacitive touch screen, have following shortcoming: (1) transparency conducting layer based on Graphene need to adopt laser direct-writing to portray pattern, laser direct-writing can be by existing printing ink on glass cover-plate etching together, cause product appearance to produce defect, and the printing ink of anti-laser ablation need exploitation; (2) Graphene is transferred to on the glass cover-plate of ink layer the time, the bed thickness of ink layer causes the drop between ink layer and form Touch Zone, and the ink layer surface smoothness is not as glass surface, affected adhering between graphene layer and cover plate, easily cause the fracture of graphene layer, or form bubble between graphene layer and cover plate or ink layer.
Therefore, with existing OGS monolithic capacitive touch screen technology, realize that the OGS monolithic capacitive touch screen based on graphene conductive film is very difficult.
The utility model content
For prior art in the OGS monolithic capacitive touch screen process of preparation based on graphene conductive film, the Graphene transparency conducting layer caused due to the existence of ink layer can't patterning, and the Graphene transparency conducting layer easily ruptures, easily produce the problems such as bubble, propose a kind of monolithic capacitive touch screen.
Monolithic capacitive touch screen described in the utility model, functional regional division is form Touch Zone and non-viewfinder area, the structure of described monolithic capacitive touch screen comprises:
(i) glass cover-plate;
(ii) be formed at the first transparency conducting layer on the glass cover-plate downside surface, described the first transparency conducting layer has the pattern along first direction;
(iii) in non-viewfinder area scope, be formed at the first electrode layer of the first layer at transparent layer;
(iv) in the non-viewfinder area of glass cover-plate upside, ink layer is set, is used to form the not visible effect of non-viewfinder area.
Preferably, described glass cover-plate is provided with the transparent window plate, and described ink layer is formed on the lower surface of transparent window plate; Wherein, described transparent window plate is connected by the upper strata adhesive member with glass cover-plate.
Perhaps, described ink layer is formed on the surface of described glass cover-plate upside, and the transparent window plate is set thereon; Wherein, described transparent window plate is connected by the upper strata adhesive member with glass cover-plate.
Preferably, described monolithic capacitive touch screen also has protective shield, and described protective shield is positioned at the glass cover-plate downside, and is connected with glass cover-plate by lower floor's adhesive member.
Preferably, described monolithic capacitive touch screen also has protective shield, and described protective shield is positioned at the glass cover-plate downside, at the protective shield uper side surface, is formed with the second transparency conducting layer, and is formed at the second electrode lay in the non-viewfinder area scope of the second layer at transparent layer; Described the second transparency conducting layer has the pattern along second direction; Described protective shield is connected with glass cover-plate by lower floor's adhesive member.
Preferably, described monolithic capacitive touch screen has flexible PCB and IC chip, for the touch location on the electric capacity touch screen, is processed.
Preferably, described the first transparency conducting layer and the second transparency conducting layer are the Graphene transparency conducting layer, the Graphene transparency conducting layer that preferred thickness is 0.3～3nm.
Preferably, the thickness of described the first electrode layer and the second electrode lay is 30～350nm, preferably 50～300nm.
Preferably, described the first electrode layer and the second electrode lay comprise the silver electrode layer.
Preferably, the thickness of described ink layer is 4～6 μ m.
Preferably, described first direction is directions X, and second direction is Y-direction.
Preferably, the thickness of described glass cover-plate is 0.5～1mm, preferably 0.7mm.
Preferably, the thickness of described transparent window plate and protective shield is independently selected from 50～150 μ m, preferably 125 μ m.
Preferably, the material of described transparent window plate and protective shield is independently selected from any one in PC, PMMA, PEN, PES, COC, PET, glass or tempered glass, preferably PET.
Preferably, described transparent window plate is processed through NCVM.
Preferably, described upper strata adhesive member and lower floor's adhesive member comprise the OCA optical cement.
Preferably, the transmittance of described glass cover-plate, transparent window plate, protective shield, upper strata adhesive member and lower floor's adhesive member >=92%.
Preferably, the structure of described monolithic capacitive touch screen is followed successively by from the bottom to top: protective shield, lower floor's optical cement, the first electrode layer, the first transparency conducting layer, glass cover-plate, upper strata optical cement, ink layer and transparent window plate.
Perhaps, the structure of described monolithic capacitive touch screen is followed successively by from the bottom to top: protective shield, the second transparency conducting layer, the second electrode lay, lower floor's optical cement, the first electrode layer, the first transparency conducting layer, glass cover-plate, upper strata optical cement, ink layer and transparent window plate.
The preparation method of monolithic capacitive touch screen described in the utility model, typical but non-limiting can comprising the steps:
One glass cover-plate is provided;
Shift Graphene to the downside surface of described glass cover-plate, obtain the first transparency conducting layer;
Be coated with the first electrode layer in described the first layer at transparent layer;
The first transparency conducting layer and the first electrode layer to described glass cover-plate downside surface carry out the justifying patterning;
Binding FPC and IC chip;
Described the first layer at transparent layer is fitted by lower floor's adhesive member and protective shield upside;
Provide a transparent window plate, at described transparent window plate downside surface printing ink layer;
Described transparent window plate downside is conformed to the glass cover-plate uper side surface by the upper strata adhesive member.
Compared with prior art, the utlity model has following beneficial effect:
(1) solved based on grapheme material in the monolithic capacitive touch screen as transparency conducting layer, because there is the height fall caused in ink layer, the Graphene transparency conducting layer the caused fracture of easily subsiding, or there are problems such as bubble, increase the adhesion between graphene film and substrate, improved the quality stability of monolithic capacitive touch screen;
(2) solved based on grapheme material in the monolithic capacitive touch screen as transparency conducting layer, adopted laser direct-writing etching transparent graphene conductive film, the problem that is easy to ink layer is etched away while carrying out patterning; Without the exploitation of carrying out the printing ink of anti-the laser ablation;
(3) the transparent window plate is after NCVM processes, and product surface wearing quality and hardness are improved, and have the outward appearance of metal-like, and do not affect the effect of wireless communication transmission;
Owing to having solved above problem, the preparation process of Graphene monolithic capacitive touch screen has been avoided complicated, expensive gold-tinted processing procedure, can adopt simply laser direct-writing to portray pattern, for technology barrier has been cleared away in the application of OGS single chip type capacitive touch screen structure on the Graphene capacitance touch screen, search out the substitute of ITO, reduced the production cost of touch-screen.
The accompanying drawing explanation
The functional regional division schematic diagram that Fig. 1 is touch-screen;
The cross-sectional view that Fig. 2 is monolithic capacitive touch screen in prior art;
The cross-sectional view of the monolithic capacitive touch screen 1000 that Fig. 3 is a kind of embodiment of the utility model
The cross-sectional view of the monolithic capacitive touch screen 2000 that Fig. 4 is the utility model the second embodiment;
The cross-sectional view of the monolithic capacitive touch screen 3000 that Fig. 5 is the third embodiment of the utility model;
Wherein, 100 form Touch Zones; 200 non-viewfinder areas; 300 flexible PCB FPC; The 400IC chip;
10 glass cover-plates; 21 transparency conducting layers; 22 electrode layers; The 32OCA optical cement; 40 protective shields; 50 ink layeies;
1010 glass cover-plates; 1021 first Graphene transparency conducting layers; 1022 first electrode layers; 1031 upper strata adhesive members; 1032 lower floor's adhesive members; 1040 protective shields; 1050 ink layeies; 1060 transparent window plates;
3010 glass cover-plates; 3021 first Graphene transparency conducting layers; 3022 first electrode layers; 3023 second Graphene transparency conducting layers; 3024 the second electrode lays; 3031 upper strata adhesive members; 3032 lower floor's adhesive members; 3040 protective shields; 3050 ink layeies; 3060 transparent window plates.
Embodiment
Next, with reference to accompanying drawing in detail, embodiment of the present utility model is described in detail.In description of the present utility model, term " first " " second " " upper strata ”“ lower floor " etc. is used for an element and another element region are separated, and described element is not defined by above-mentioned term.In addition, for the description of known technology, even they are relevant to the utility model, if but be considered to unnecessary,, when they can make feature of the present utility model and description not know, they can be omitted.
Problem to be solved in the utility model is the 1. capacitive touch screen based on the Graphene transparency conducting layer, because the existence of ink layer causes the Graphene transparency conducting layer that the bubble out-of-flatness is arranged, and the fracture of easily subsiding at the edge of ink layer; 2. the patterning difficulty of the capacitive touch screen based on the Graphene transparency conducting layer, laser direct-writing is portrayed the loss that pattern easily causes ink layer, causes open defect.
In order to address this problem, the utility model provides a kind of monolithic capacitive touch screen (OGS), the position of described OGS ink layer unlike the prior art, in prior art, ink layer is positioned at the downside of glass cover-plate, ink layer in the utility model is positioned at the upside of glass cover-plate, can solve the existence due to ink layer, the subsiding or the problem such as fracture of the transparency conducting layer caused; On the other hand, in the OGS preparation process, the printing process of ink layer can be arranged on to transparency conducting layer and electrode layer pattern and carry out after portraying, thereby solve the etching problem of the ink layer that Graphene transparency conducting layer laser direct-writing patterning causes.
In order to make the purpose of this utility model, technical scheme and advantage are clearer, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making under the creative work prerequisite the every other embodiment obtained, and all belong to the scope of the utility model protection.
Touch-screen described in the utility model can be included in terminal, such as mobile phone, televisor, monitor, portable notebook, laptop computer, graphic tablet, equipment operating interface etc.
Embodiment one
Fig. 3 has provided the cross-sectional view of the monolithic capacitive touch screen 1000 of a kind of embodiment of the utility model.As shown in Figure 3, monolithic capacitive touch screen 1000 comprises: glass cover-plate 1010; Transfer is at the first Graphene transparency conducting layer 1021 of glass cover-plate 1010 downside surfaces; Be deposited on first electrode layer 1022 on the first Graphene transparency conducting layer 1021 surfaces, 1022 of described the first electrode layers are present in the non-viewfinder area scope of monolithic capacitive touch screen 1000; Be positioned at the transparent window plate 1060 of glass cover-plate 1010 upsides; Be printed on the ink layer 1050 of transparent window plate 1060 downside surfaces; Upper strata adhesive member 1031 for fit transparent window plate 1060 and glass cover-plate 1010; Be positioned at the protective shield 1040 of glass cover-plate 1010 downsides; Lower floor's adhesive member 1032 for fit protective shield 1040 and glass cover-plate 1010.
In the present embodiment, the first Graphene transparency conducting layer 1021 is formed for identifying the sensor of the touch location of people's the finger tip on transparent window plate 1060 surfaces or object (as capacitance pen).The thickness of described the first Graphene transparency conducting layer 1021 is 0.3～3nm, is approximately the graphene layer of 1～10 layer.Because glass cover-plate 1010 downside surfaces are very smooth, can not cause subsiding, rupture or producing the problems such as bubble of the graphene layer that only has 0.3～3nm thickness.
In the present embodiment, the first electrode layer 1022 sends the IC chip for the touch signal that the first Graphene transparency conducting layer 1021 is sensed to by flexible PCB.The thickness of described the first electrode layer 1022 can be 30～350nm, is preferably 50～300nm.Described the first electrode layer 1022 is made by high conductive material, can be for example to be made by conductive silver (Ag) slurry or other metal electrodes, or be made by conducting polymer, ITO or Graphene.
The first Graphene transparency conducting layer 1021 and the first electrode layer 1022 should pass through patterning, and the shape of described patterning can be strip, rhombus, hexagon, triangle etc., can carry out global pattern by laser direct-writing.The given cross-sectional view of Fig. 3 is exactly along the sectional view carried out perpendicular to pattern direction.
In the present embodiment, transparent window plate 1060 and protective shield 1040 can be formed by the insulating material to visible transparent, preferred described insulating material is to the transmittance of visible ray >=92%, the example of described insulating material can comprise the PC(polycarbonate), the PMMA(polymethyl methacrylate), the PEN(PEN), the PES(polyethersulfone), the COC(cyclic olefine copolymer), the poly-para Toluic Acid's glycol ester of PET(), glass or tempered glass etc., preferably PET.Described transparent window plate is preferably processed through NCVM, and described NCVM claims again discontinuous coating technique or non-conductive electroplating technology.NCVM adopts and plates out the films such as metal and insulating compound, utilizes each mutually discontinuous characteristic, obtains the effect that FINAL APPEARANCE has metal-like and do not affect wireless communication transmission.After NCVM processes, wearing quality and the hardness of transparent window plate are improved, and have the outward appearance of metal.
In the present embodiment, be applied with the touch input from special object (as people's finger tip or capacitance pen etc.) on transparent window plate 1060; The ink layer 1050 that is printed in transparent window plate 1060 downside surfaces plays the effect of barrier electrode layer, so 1050 of ink layeies are printed in the scope of non-viewfinder area of transparent window plate 1060 downside surfaces.By transparent window plate 1060 and the process of glass cover-plate 1010 laminatings, be: the transparent window plate 1060 that downside is printed with to ink layer 1050 is fitted in by upper strata adhesive member 1031 uper side surface that downside has covered the glass cover-plate 1010 of the first Graphene transparency conducting layer 1021 of patterning and the first electrode 1022.Therefore, can avoid the damage of laser direct-writing to ink layer, keep the complete of ink layer, make the outward appearance of the monolithic capacitive touch screen provided complete.
In the present embodiment, protective shield 1040 plays and protects the first Graphene transparency conducting layer 1021 and the first electrode 1022 not by the effect of outside destroy.Protective shield 1040 upsides are connected with glass cover-plate 1010 by lower floor's adhesive member 1032, specifically, the downside surface of glass cover-plate 1010 is coated with the first Graphene transparency conducting layer 1021 and the first electrode 1022, again at the surface of the first Graphene transparency conducting layer 1021 and the first electrode 1022 laminating lower floor adhesive member 1032, the uper side surface of bonding protective shield 1040 afterwards.
Embodiment two
Fig. 4 has provided the cross-sectional view of the monolithic capacitive touch screen 2000 of the utility model the second embodiment.With the difference of embodiment one, be, ink layer 1050 is formed at the uper side surface of glass cover-plate 1010, connects (bonding) transparent window plate 1060 by upper strata adhesive member 1031 afterwards.
Embodiment three
Fig. 5 has provided the cross-sectional view of the monolithic capacitive touch screen 3000 of the third embodiment of the utility model.As shown in Figure 5, monolithic capacitive touch screen 3000 comprises: glass cover-plate 3010; Transfer is at the first Graphene transparency conducting layer 3021 of glass cover-plate 3010 downside surfaces; Be deposited on first electrode layer 3022 on the first Graphene transparency conducting layer 3021 surfaces; Be positioned at the transparent window plate 3060 of glass cover-plate 3010 upsides; Be printed on the ink layer 3050 of transparent window plate 3060 downside surfaces; Upper strata adhesive member 3031 for fit transparent window plate 3060 and glass cover-plate 3010; Be positioned at the protective shield 3040 of glass cover-plate 3010 downsides; Transfer is at the second Graphene transparency conducting layer 3023 of protective shield 3040 uper side surfaces; Be deposited on the second electrode lay 3024 on the second Graphene transparency conducting layer 3023 surfaces; Lower floor's adhesive member 3032 for fit protective shield 3040 and glass cover-plate 3010; Wherein, 3024 of the first electrode layer 3022 and the second electrode lays are present in the non-viewfinder area scope of monolithic capacitive touch screen 3000.
In the present embodiment, the first Graphene transparency conducting layer 3021 and the first electrode layer 3022 have the pattern along first direction, the second Graphene transparency conducting layer 3023 and the second electrode lay 3024 have the pattern along second direction, the shape of described pattern can be strip, rhombus, hexagon, triangle etc., and described pattern can carry out global pattern by laser direct-writing.In present embodiment, first direction is directions X (or horizontal direction), and second direction is Y-direction (or vertical direction), and in other embodiments, first direction and second direction can be oblique direction.The given cross-sectional view of Fig. 5 is exactly the sectional view carried out along Y-direction.
In the present embodiment, protective shield 3040 not only plays protects the first Graphene transparency conducting layer 3021 and the first electrode 3022 not by the effect of outside destroy, and also the while exists as the substrate of the second Graphene transparency conducting layer 3023.Protective shield 3040 is by lower floor's adhesive member 3032 and glass cover-plate 3010 laminatings, and specifically, the downside surface of glass cover-plate 3010 is coated with the first Graphene transparency conducting layer 3021 and the first electrode 3022; The uper side surface of protective shield 3040 is coated with the second Graphene transparency conducting layer 3023 and the second electrode 3024; Lower floor's adhesive member 3032 is bonded in to the surface of the first Graphene transparency conducting layer 3021 and the second Graphene transparency conducting layer 3023, can fit protective shield 3040 and glass cover-plate 3010.
Certainly, in the present embodiment, ink layer 3050 also can be formed at the uper side surface of glass cover-plate 3010, connects (bonding) transparent window plate 3060 by upper strata adhesive member 3031 afterwards.
Embodiment four
A kind of preparation method of monolithic capacitive touch screen, described preparation method comprises the steps:
Step 101 a: glass cover-plate 1010 is provided;
Step 102: shift Graphene to the downside surface of described glass cover-plate 1010, obtain the first Graphene transparency conducting layer 1021; And be coated with the first electrode layer 1022 on the surface of described the first Graphene transparency conducting layer 1021;
Wherein, described the first Graphene transparency conducting layer 1021 is preferably 3～10 layer graphenes, and thickness is preferably 0.3～3nm; Described the first electrode layer 1022 is preferably the organic silver electrode layer that 30～350nm is thick;
Step 103: the first Graphene transparency conducting layer 1021 and the first electrode layer 1022 to described glass cover-plate 1010 downside surfaces carry out the justifying patterning;
Step 104: binding FPC300 and IC chip 400;
Step 105: fitted by lower floor's adhesive member 1032 and protective shield 1040 uper side surfaces in described the first Graphene transparency conducting layer 1021 surfaces;
Step 106: provide a transparent window plate 1060, printing ink layer 1050 between described transparent window plate 1060 and glass cover-plate 1010;
Described ink layer 1050 can be positioned at the lower floor surface of transparent window plate 1060, also can be positioned at the upper surface of glass cover-plate 1010;
Step 107: described transparent window plate 1060 downsides are conformed to glass cover-plate 1010 uper side surfaces by upper strata adhesive member 1031;
Step 101～107 can prepare monolithic capacitive touch screen 1000 or monolithic capacitive touch screen 2000.
In the operation of the printing ink layer that the utility model provides, because the patterning operation of transparency conducting layer and electrode layer completes, therefore the ink layer now printed is the scope of final ink layer, can not cause damage, when having solved laser ablation transparency conducting layer and electrode layer and having carried out patterning, the problem that ink layer easily is etched away.
Abovely in conjunction with embodiment, know-why of the present utility model has been described.These are described is in order to explain principle of the present utility model, and can not be interpreted as by any way the restriction to the utility model protection domain.Explanation based on herein, those skilled in the art does not need to pay performing creative labour can associate other embodiment of the present utility model, within these modes all will fall into protection domain of the present utility model.
Claims (8)
1. a monolithic capacitive touch screen, functional regional division is form Touch Zone and non-viewfinder area, it is characterized in that, the structure of described monolithic capacitive touch screen comprises:
(i) glass cover-plate;
(ii) be formed at the first transparency conducting layer on the glass cover-plate downside surface, described the first transparency conducting layer has the pattern along first direction;
(iii) in non-viewfinder area scope, be formed at the first electrode layer of the first layer at transparent layer;
(iv) in the non-viewfinder area of glass cover-plate upside, ink layer is set, is used to form the not visible effect of non-viewfinder area.
2. monolithic capacitive touch screen as claimed in claim 1, is characterized in that, described glass cover-plate is provided with the transparent window plate, and described ink layer is formed on the lower surface of transparent window plate;
Wherein, described transparent window plate is connected by the upper strata adhesive member with glass cover-plate.
3. monolithic capacitive touch screen as claimed in claim 1, is characterized in that, described ink layer is formed on the surface of described glass cover-plate upside, and the transparent window plate is set thereon;
Wherein, described transparent window plate is connected by the upper strata adhesive member with glass cover-plate.
4. monolithic capacitive touch screen as claimed in claim 1, is characterized in that, described monolithic capacitive touch screen also has protective shield, and described protective shield is positioned at the glass cover-plate downside, and be connected with glass cover-plate by lower floor's adhesive member.
5. monolithic capacitive touch screen as claimed in claim 1, it is characterized in that, described monolithic capacitive touch screen also has protective shield, described protective shield is positioned at the glass cover-plate downside, be formed with the second transparency conducting layer at the protective shield uper side surface, and be formed at the second electrode lay in the non-viewfinder area scope of the second layer at transparent layer; Described the second transparency conducting layer has the pattern along second direction; Described protective shield is connected with glass cover-plate by lower floor's adhesive member.
6. monolithic capacitive touch screen as claimed in claim 1, is characterized in that, described monolithic capacitive touch screen has flexible PCB and IC chip, for the touch location on capacitance touch screen, is processed.
7. monolithic capacitive touch screen as claimed in claim 1, it is characterized in that, the structure of described monolithic capacitive touch screen is followed successively by from the bottom to top: protective shield, lower floor's optical cement, the first electrode layer, the first transparency conducting layer, glass cover-plate, upper strata optical cement, ink layer and transparent window plate.
8. monolithic capacitive touch screen as claimed in claim 1, it is characterized in that, the structure of described monolithic capacitive touch screen is followed successively by from the bottom to top: protective shield, the second transparency conducting layer, the second electrode lay, lower floor's optical cement, the first electrode layer, the first transparency conducting layer, glass cover-plate, upper strata optical cement, ink layer and transparent window plate.
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| CN 201320409637 CN203350854U (en) | 2013-07-10 | 2013-07-10 | Single-chip type capacitive touch panel |
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| CN 201320409637 CN203350854U (en) | 2013-07-10 | 2013-07-10 | Single-chip type capacitive touch panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103324376A (en) * | 2013-07-10 | 2013-09-25 | 无锡力合光电石墨烯应用研发中心有限公司 | One-chip type capacitive touch screen and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103324376A (en) * | 2013-07-10 | 2013-09-25 | 无锡力合光电石墨烯应用研发中心有限公司 | One-chip type capacitive touch screen and preparation method thereof |
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