CN213634448U

CN213634448U - Ultra-thin ultra-narrow multifunctional touch screen

Info

Publication number: CN213634448U
Application number: CN202022775804.2U
Authority: CN
Inventors: 李建军
Original assignee: Mutto Optronics Corp
Current assignee: Mutto Optronics Corp
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-07-06
Anticipated expiration: 2030-11-26

Abstract

The utility model discloses an ultra-thin super narrow multi-functional touch-sensitive screen, including cladding material and first electric capacity layer, first electric capacity layer includes PET substrate, electric capacity response layer, OC layer and electric capacity drive layer, and electric capacity response layer, OC layer and electric capacity drive layer set gradually the one side at the PET substrate from inside to outside, and the cladding material sets up the another side at the PET substrate. The utility model adopts PET substrate as the substrate of the capacitor layer, adopts Cu or AgBr as the conductive material, and directly carries out hardening treatment on the surface of the capacitor layer; the minimum line width and line distance is 8um/8um, so that the screen occupation ratio can be increased to more than 92%; meanwhile, the surface of the capacitor layer is plated with a plating layer, so that the transmittance of the touch screen can reach over 93 percent, and the optical performance is enhanced.

Description

Ultra-thin ultra-narrow multifunctional touch screen

Technical Field

The utility model relates to a multifunctional touch screen, concretely relates to ultra-thin super narrow multifunctional touch screen.

Background

Since the touch screen is rapidly developed from a resistance screen to a capacitance screen, the touch screen is widely applied to the fields of smart phones, tablet computers, electronic books, watches, bracelets, vehicles, industrial controls, medical treatment and the like. The capacitive touch screen is divided into two types, one type is a glass capacitive touch screen, a glass capacitor layer is manufactured by adopting a glass type manufacturing process, and the capacitor layer is made of glass with specific capacitance sensing patterns and driving patterns; the other type is a thin film capacitive touch screen, a thin film capacitance layer is manufactured by adopting a thin film type manufacturing process, the capacitance layer is a transparent conductive thin film with specific capacitance sensing patterns and driving patterns, and the market of the thin film capacitive touch screen is far superior to that of a glass capacitive touch screen due to various factors such as light weight, thin thickness, strong flexibility, low price and the like. The conventional thin film capacitive touch screen is of a GFF/GF2 structure, glass CG is used as a cover plate, the common thicknesses are generally 0.55mm, 0.7mm and 1.1mm, the thinnest thickness can be 0.4mm, but the use market is small, the upper OCA generally adopts 0.01mm and 0.125mm, the thickness of a CG ink area is about 24 um-38 um, the silver paste and insulation thickness at the edge of the upper ITO is about 20um, the line width and line distance are generally 30um/30um, lines of 20um/20um can reach but have a plurality of process problems, the edge of an upper OCA attaching interface is CG ink and the silver paste and insulation of the upper ITO, so that the thinner upper OCA is difficult to fill segment differences generated by the thicknesses, and bubbles are generated; the conventional thickness of the upper ITO film is 0.045mm, 0.05mm, 0.1mm, 0.125mm, 0.045mm ITO film with OCA under the lower belt and 0.05mm ITO film without OCA under the lower belt; the thickness of the lower OCA is between the upper ITO and the lower ITO, and only the silver paste and the insulation thickness of the edge of the lower ITO are needed, so that the thicknesses of the lower OCA and the lower ITO are 0.05mm and 0.1mm generally; the lower ITO thickness is typically 0.05mm, 0.1mm, 0.125 m. Therefore, the minimum thickness of the general GFF structure can be 0.595mm, and the minimum line width and line distance of the trace lines can be 20um/20um, as shown in FIG. 1.

Generally, the thinnest of the GF2 structure can be 0.55mm, and the minimum line width and line distance of the trace lines can be 20um/20um, as shown in FIG. 2.

The minimum thickness of GFF/GF2 of the conventional thin film capacitive touch screen can be 0.55m, and the thickness of the thin film capacitive touch screen is still thicker due to the structure, so that the requirement of ultrathin touch screen at present is not met; the minimum line width and line distance of the edge wiring line can be 20um/20um, the screen occupation ratio can only be 91%, the breakthrough of 91% is difficult to achieve, and the full screen cannot be really achieved; and the optical performance is general, the optical requirements of high-transmittance low-reflection anti-dazzle are not met, and the appearance visual effect is not good.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide an ultra-thin and ultra-narrow multifunctional touch screen, which adopts 0.038mm PET substrate as capacitance layer substrate, adopts Cu or AgBr as conductive material, has single-side thickness of 0.002mm, cancels CG cover plate and OCA bonding layer, directly carries out hardening treatment on the surface of the capacitance layer, and makes the surface hardness of the product reach 750g 3H-9H, so that CG is replaced by CG, and the whole thickness can reach 0.055 mm; the minimum line width and line distance is 8um/8um, so that the screen occupation ratio can be increased to more than 92%; meanwhile, the surface of the capacitor layer is plated with the plating layer, so that the transmittance of the touch screen can reach over 93%, the reflectivity is minimum 5%, and the haze is 3% -20%, a high-transmittance low-reflection anti-dazzle visual experience interface is formed, and the optical performance is enhanced.

For realizing above-mentioned technical purpose, reach above-mentioned technological effect, the utility model discloses a following technical scheme realizes:

the utility model provides an ultra-thin super narrow multi-functional touch-sensitive screen, includes cladding material and first electric capacity layer, first electric capacity layer includes PET substrate, electric capacity response layer, OC layer and electric capacity drive layer, electric capacity response layer the OC layer with electric capacity drive layer sets gradually from inside to outside the one side of PET substrate, the cladding material sets up the another side of PET substrate.

The utility model provides an ultra-thin super narrow multi-functional touch-sensitive screen, includes cladding material and second electric capacity layer, second electric capacity layer includes PET substrate, electric capacity response layer, OC layer and electric capacity drive layer, electric capacity response layer the OC layer with cladding material sets gradually from inside to outside the one side of PET substrate, electric capacity drive layer sets up the another side of PET substrate.

Further, the thickness of the coating is 0.007mm, and the coating is an HC coating or comprises the HC coating and an AF coating which are sequentially arranged from inside to outside, or comprises the HC coating, the AG coating and the AF coating which are sequentially arranged from inside to outside, or comprises the HC coating, the AR coating and the AF coating which are sequentially arranged from inside to outside, or comprises the HC coating, the AG coating, the AR coating and the AF coating which are sequentially arranged from inside to outside.

Further, the PET substrate is a flexible transparent substrate, and the thickness of the PET substrate is 0.038 mm.

Furthermore, the capacitance induction layer is a metal conducting layer, and the thickness of the capacitance induction layer is 0.002 mm.

Further, the OC layer is a highly transparent insulating material and has a thickness of 0.006 mm.

Furthermore, the capacitance driving layer is a metal conducting layer, and the thickness of the capacitance driving layer is 0.002 mm.

Further, the conductive material of the capacitance induction layer and the capacitance driving layer is Cu or AgBr.

The utility model has the advantages that:

the utility model adopts 0.038mm PET substrate as the capacitance layer substrate, adopts Cu or AgBr as the conductive material, has 0.002mm of single-side thickness, cancels CG cover plate and OCA bonding layer, and directly carries out hardening treatment on the surface of the capacitance layer, so that the surface hardness of the product reaches 750g 3H-9H, and the CG is replaced by the product, therefore, the whole thickness can reach 0.055 mm; the minimum line width and line distance is 8um/8um, so that the screen occupation ratio can be increased to more than 92%; meanwhile, the surface of the capacitor layer is plated with the plating layer, so that the transmittance of the touch screen can reach over 93%, the reflectivity is minimum 5%, and the haze is 3% -20%, a high-transmittance low-reflection anti-dazzle visual experience interface is formed, and the optical performance is enhanced.

The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

FIG. 1 is a schematic diagram of a GFF minimum thickness structure of a conventional thin film capacitive touch screen;

fig. 2 is a schematic diagram of a structure of a conventional thin film capacitive touch screen GF2 with a thinnest thickness;

FIG. 3 is a schematic view of a structure of the present invention;

FIG. 4 is a schematic view of another embodiment of the present invention;

FIG. 5 is a schematic structural view of the coating of the present invention;

FIG. 6 is a flow chart of the fabrication of the structure of FIG. 3;

fig. 7 is a flow chart of the fabrication of the structure of fig. 4.

The reference numbers in the figures illustrate:

1. plating layer, 2, first electric capacity layer, 3, PET substrate, 4, electric capacity response layer, 5, OC layer, 6, electric capacity drive layer, 7, second electric capacity layer, 8, AF plating layer, 9, AR plating layer, 10, AG plating layer, 11, HC plating layer.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 3, an ultra-thin ultra-narrow multifunctional touch screen, including cladding material 1 and first electric capacity layer 2, first electric capacity layer 2 includes PET substrate 3, electric capacity response layer 4, OC layer 5 and electric capacity drive layer 6 set gradually in PET substrate 3's one side from inside to outside, cladding material 1 sets up the another side at PET substrate 3, electric capacity response layer 4 and electric capacity drive layer 6 of first electric capacity layer 2 are located the same side of PET substrate 3, for conventional film capacitive touch screen, need not apron and binder, it is whole integrated on PET substrate 3.

Referring to fig. 4, an ultra-thin ultra-narrow multifunctional touch screen, including cladding material 1 and second electric capacity layer 7, second electric capacity layer 7 includes PET substrate 3, electric capacity response layer 4, OC layer 5 and electric capacity drive layer 6, electric capacity response layer 4, OC layer 5 and cladding material 1 set gradually in the one side of PET substrate 3 from inside to outside, electric capacity drive layer 6 sets up the another side at PET substrate 3, electric capacity response layer 4 and electric capacity drive layer 6 of second electric capacity layer 7 are located the two sides of PET substrate 3, for conventional film capacitive touch screen, need not apron and binder, it is whole integrated on PET substrate 3.

Further, as shown in fig. 5, the thickness of the plating layer 1 is 0.007mm, and the plating layer is an HC plating layer 11 or includes an HC plating layer 11 and an AF plating layer 8 which are sequentially arranged from inside to outside, or includes an HC plating layer 11, an AG plating layer 10 and an AF plating layer 8 which are sequentially arranged from inside to outside, or includes an HC plating layer 11, an AR plating layer 9 and an AF plating layer 8 which are sequentially arranged from inside to outside, or includes an HC plating layer 11, an AG plating layer 10, an AR plating layer 9 and an AF plating layer 8 which are sequentially arranged from inside to outside, and the overall thickness is about 0.007 mm.

The AG plating layer 10, the AR plating layer 9, the AF plating layer 8, and the HC plating layer 11 may be coated by a dry process such as magnetron sputtering or vapor deposition, or by a wet process such as spray coating, curtain coating, spin coating. The HC plating layer 11 is a hardened layer containing nano-level silicon dioxide and organic substances, and is mainly used for improving the surface hardness of the PET substrate 3 and preventing surface scratches, the lowest surface hardness can be 750g 3H, the highest surface hardness can meet 750g 9H, and the requirement of the surface hardness of the touch screen cover plate can be met.

The AG coating 10 is mainly an uneven film formed on the surface of the HC coating 11 by nano silicon dioxide particles, so as to achieve the effect of diffuse reflection, and the visual effect is best when the haze is below 20%. When the brightness of the external light source is different from the brightness of the display screen, glare cannot be generated due to the existence of diffuse reflection, the anti-dazzle effect is achieved, the visual experience is enhanced, meanwhile, the diameter of the silicon dioxide particles is controlled, the problem of bright spots can be effectively improved, and the spark phenomenon is prevented.

The AR coating 9 forms a multilayer anti-reflection layer on the surface of the AG coating 10, when light is incident on the PET substrate 3, because the refractive index of the surface of the PET substrate 3, the refractive index of the anti-reflection layer and the refractive index of an air layer are different, reflected light passing through the PET substrate 3 and reflected light passing through the anti-reflection layer have a certain phase difference, and the phase difference can generate a light interference phenomenon, so that the two reflected lights are mutually offset, and the surface reflectivity can reach below 0.5% and can reach 0.1% at the lowest from reaching the optical requirements of low reflection and high transmission, so that the overall reflectivity of the touch screen can be reduced to 5% from 10%.

The AF plating layer 8 is formed by forming a layer of hydrophobic and oleophobic layer on the surface of the AR plating layer 9 by Si-F compound to improve the smoothness and antifouling performance when touching, and the water drop angle of the surface of the AF plating layer 8 with fingerprint resistance is 110 degrees +/-10 degrees.

The surface of the PET substrate 3 is subjected to four plating treatments of an HC plating layer 11, an AG plating layer 10, an AR plating layer 9 and an AF plating layer 8, so that the touch screen has excellent optical properties and physical properties such as high hardness, high transmittance, low reflection, fingerprint prevention and the like, the transmittance of the touch screen can reach more than 93%, the overall reflectivity is minimum 5%, the haze is 3% -20%, the surface hardness can reach 750g 9H, and the AF plating layer 8 can reach more than 110 degrees, and the multifunctional touch screen has the advantage of multiple functions.

Further, the PET substrate 3 is a flexible transparent substrate for supporting the capacitance sensing layer 4 and the capacitance driving layer 6, and has a thickness of 0.038 mm.

Further, electric capacity inductive layer 4 is the metal conducting layer, and thickness is 0.002mm, walks line and the metal grid in the face by the edge and constitutes for received signal, the line width line spacing that the line was walked to the edge is minimum 8 um.

Further, the OC layer 5 is a highly transparent insulating material, the transmittance is as high as 99.9%, the overall optics of the touch screen is not affected, and the thickness is 0.006 mm.

Further, electric capacity drive layer 6 is the metal conducting layer, and thickness is 0.002mm, walks line and the metal grid in the face by the edge and constitutes for drive signal, the line width line spacing that the line was walked to the edge is minimum 8 um.

Further, the conductive material of the capacitance sensing layer 4 and the capacitance driving layer 6 is Cu or AgBr.

Referring to fig. 6, a method for manufacturing an ultra-thin and ultra-narrow multifunctional touch screen includes the following steps: plating a layer of metal conductive material with the thickness of 0.002mm on the whole surface of one surface of a 0.038mm PET substrate 3, obtaining a capacitance sensing layer 4 through exposure, display and etching, wherein the line width and line distance of edge wiring is 8um/8um at the minimum, printing a layer of high-transparency OC layer 5 with the thickness of 0.006mm on the surface of the capacitance sensing layer 4, plating a layer of metal conductive material with the thickness of 0.002mm on the surface of the OC layer 5, obtaining a capacitance driving layer 6 through exposure, display and etching, wherein the line width and line distance of edge wiring is 8um/8um at the minimum, and thus the whole thickness is 0.048mm, and the first capacitance layer 2 is manufactured; the other surface of the PET substrate 3 was coated with a plating layer 1 having a thickness of 0.007 mm.

By the method, the touch screen with the total thickness of 0.055mm, the line width and the line distance of 8um/8um, high transmittance, low reflection and anti-dazzle can be realized, and the characteristic requirements of the ultrathin and ultra-narrow multifunctional touch screen are met.

Referring to fig. 7, a method for manufacturing an ultra-thin and ultra-narrow multifunctional touch screen includes the following steps: plating a layer of metal conductive material with the thickness of 0.002mm on the whole of two surfaces of a 0.038mm PET substrate 3 at the same time, exposing, displaying and etching to obtain a capacitance sensing layer 4 and a capacitance driving layer 6, wherein the line width and the line distance of the edge wiring line are 8um/8um at the minimum, or plating a layer of metal conductive material with the thickness of 0.002mm on the whole of one surface of the 0.038mm PET substrate 3, exposing, displaying and etching to obtain the capacitance driving layer 6, plating a layer of metal conductive material with the thickness of 0.002mm on the whole of the other surface of the 0.038mm PET substrate 3, exposing, displaying and etching to obtain the capacitance sensing layer 4; then, a highly transparent OC layer 5 with the thickness of 0.006mm is printed on the surface of the capacitance induction layer 4, so that the whole second capacitance layer 7 with the thickness of 0.048mm is manufactured; then, a plating layer 1 with a thickness of 0.007mm was plated on the surface of the OC layer 5.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an ultra-thin super narrow multi-functional touch-sensitive screen which characterized in that: including cladding material (1) and first electric capacity layer (2), first electric capacity layer (2) include PET substrate (3), electric capacity response layer (4), OC layer (5) and electric capacity driving layer (6), electric capacity response layer (4) OC layer (5) with electric capacity driving layer (6) set gradually from inside to outside the one side of PET substrate (3), cladding material (1) sets up the another side of PET substrate (3).

2. The utility model provides an ultra-thin super narrow multi-functional touch-sensitive screen which characterized in that: including cladding material (1) and second electric capacity layer (7), second electric capacity layer (7) include PET substrate (3), electric capacity response layer (4), OC layer (5) and electric capacity drive layer (6), electric capacity response layer (4) OC layer (5) with cladding material (1) sets gradually from inside to outside the one side of PET substrate (3), electric capacity drive layer (6) set up the another side of PET substrate (3).

3. The ultra-thin ultra-narrow multi-function touch screen of claim 1 or 2, characterized in that: the thickness of the plating layer (1) is 0.007mm, and the plating layer is an HC plating layer (11) or comprises the HC plating layer (11) and an AF plating layer (8) which are sequentially arranged from inside to outside or comprises the HC plating layer (11), the AG plating layer (10) and the AF plating layer (8) which are sequentially arranged from inside to outside or comprises the HC plating layer (11), the AR plating layer (9) and the AF plating layer (8) which are sequentially arranged from inside to outside or comprises the HC plating layer (11), the AG plating layer (10), the AR plating layer (9) and the AF plating layer (8) which are sequentially arranged from inside to outside.

4. The ultra-thin ultra-narrow multi-function touch screen of claim 3, wherein: the PET base material (3) is a flexible transparent base material, and the thickness is 0.038 mm.

5. The ultra-thin ultra-narrow multi-function touch screen of claim 4, wherein: the capacitance induction layer (4) is a metal conducting layer, and the thickness is 0.002 mm.

6. The ultra-thin ultra-narrow multi-functional touch screen of claim 5, characterized in that: the OC layer (5) is a highly transparent insulating material with a thickness of 0.006 mm.

7. The ultra-thin ultra-narrow multi-functional touch screen of claim 6, characterized in that: the capacitance driving layer (6) is a metal conducting layer, and the thickness of the metal conducting layer is 0.002 mm.

8. The ultra-thin ultra-narrow multi-functional touch screen of claim 7, characterized in that: the conductive materials of the capacitance induction layer (4) and the capacitance driving layer (6) are Cu or AgBr.