CN220709969U - ITO conductive film - Google Patents
ITO conductive film Download PDFInfo
- Publication number
- CN220709969U CN220709969U CN202321932691.XU CN202321932691U CN220709969U CN 220709969 U CN220709969 U CN 220709969U CN 202321932691 U CN202321932691 U CN 202321932691U CN 220709969 U CN220709969 U CN 220709969U
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- China
- Prior art keywords
- film
- polyester film
- ito
- layer
- protective film
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- 229920006267 polyester film Polymers 0.000 claims abstract description 39
- 230000001681 protective effect Effects 0.000 claims abstract description 37
- 239000011248 coating agent Substances 0.000 claims abstract description 25
- 238000000576 coating method Methods 0.000 claims abstract description 25
- 239000010410 layer Substances 0.000 claims description 48
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims description 10
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims 1
- 239000010408 film Substances 0.000 description 52
- 239000006229 carbon black Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 239000002245 particle Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000003851 corona treatment Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000002270 dispersing agent Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- LLLVZDVNHNWSDS-UHFFFAOYSA-N 4-methylidene-3,5-dioxabicyclo[5.2.2]undeca-1(9),7,10-triene-2,6-dione Chemical compound C1(C2=CC=C(C(=O)OC(=C)O1)C=C2)=O LLLVZDVNHNWSDS-UHFFFAOYSA-N 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Landscapes
- Laminated Bodies (AREA)
- Non-Insulated Conductors (AREA)
Abstract
The utility model relates to the technical field of ITO films, and particularly discloses an ITO conductive film which comprises a polyester film used for a transparent electrode of an electronic instrument, wherein one surface of the polyester film is coated with a black shading coating, the other surface of the polyester film is sputtered with an ITO layer, and the upper surface of the ITO layer is provided with a protective film. The black shading coating is coated on one surface of the polyester film, so that the polyester film has excellent shading performance, has anti-scratch capability, does not need to be coated with a hardening coating, plays a role in shading and anti-scratch, does not reduce the tearing strength of the film due to the addition of black shading components in the polyester film, and has excellent heat resistance and low heat shrinkage rate of a finished product; in addition, the ITO layer is sputtered on the other surface of the polyester film, so that the conductivity of the polyester film is better.
Description
Technical Field
The utility model relates to the technical field of ITO films, in particular to an ITO conductive film.
Background
The ITO film is an n-type semiconductor material and has high conductivity, high visible light transmittance, high mechanical hardness and good chemical stability. It is the most commonly used thin film material for transparent electrodes of Liquid Crystal Displays (LCD), plasma Displays (PDP), electroluminescent displays (EL/OLED), touch screens (Touch Panel), solar cells and other electronic instruments. When the conventional ITO film is used on a touch screen, in order to shade the back of the touch screen, a black polyester film needs to be added with carbon black and organic dye to achieve the shading effect. However, the addition of a large amount of carbon black and an organic pigment affects the crystallinity of ethylene terephthalate. Furthermore, carbon black has strong hydrophilicity and hydrophobicity, and the surface thereof contains hydrophilic groups such as hydroxyl groups, carboxyl groups, etc., which interact with the hydrophilic groups in the polyester molecules, thereby making it difficult to disperse the carbon black in the polyester. Most of the black polyester films on the market have low tearing strength, poor surface quality, no smoothness and high content of volatile oligomers.
Disclosure of Invention
The utility model aims to provide a shading ITO conductive film with high tearing strength and low thermal shrinkage rate.
The ITO conductive film comprises a polyester film used for a transparent electrode of an electronic instrument, wherein one surface of the polyester film is coated with a black shading coating, the other surface of the polyester film is sputtered with an ITO layer, and the upper surface of the ITO layer is provided with a protective film.
The ITO conductive film has excellent light-shielding performance, has anti-scratch capability and does not need to be coated with a hardening coating because a black light-shielding coating is coated on one surface of the polyester film, and the black coating plays a role in shielding light and resisting scratch, so that the tearing strength of the film is not reduced due to the addition of a black light-shielding component in the polyester film, and the finished product has excellent heat resistance and low heat shrinkage; in addition, the ITO layer is sputtered on the other surface of the polyester film, so that the conductivity of the polyester film is better.
As a preferable scheme of the utility model, the thickness of the black shading coating is between 4 micrometers and 10 micrometers, so that the black shading coating has better surface hardness, anti-scratch performance and shading effect.
As a preferable scheme of the utility model, the black shading coating is composed of a mixture of carbon black particles, film-forming resin, dispersing agent, curing agent and catalyst, and the mixture is subjected to crosslinking reaction after being heated, so that the performances of high shading, high hardness and scratch resistance are further improved.
As a preferable scheme of the utility model, the particle diameter of the carbon black particle layer is between 30 nanometers and 100 nanometers, so that the shading effect of the black shading coating and the smoothness of the surface are further improved.
As a preferable scheme of the utility model, the thickness of the polyester film is between 125 micrometers and 175 micrometers, so that the overall strength of the ITO conductive film can be further enhanced.
As a preferable scheme of the utility model, the contact surfaces of the polyester film, the black shading coating and the ITO layer are corona treatment surfaces, so that the adhesive force of the black shading coating and the ITO layer on the polyester film can be increased.
As a preferable scheme of the utility model, the ITO layer is sputtered on the surface of the polyester film to form the indium tin oxide layer, the thickness of the ITO layer is between 25 nanometers and 50 nanometers, and the ITO layer has the effects of good conductivity, high resistance uniformity, excellent chemical corrosion resistance, good processability, convenient etching and strong oxidation resistance.
As a preferable scheme of the utility model, the protective film is a PE protective film, the thickness of the protective film is between 25 and 50 microns, so that the protective film is more convenient to manufacture, and the protective film can play a better role in protection due to the fact that the thickness of the protective film is between 25 and 50 microns.
As a preferable scheme of the utility model, the protective film can also comprise a PET protective film base film layer arranged at the top and a PET protective film pressure-sensitive adhesive layer arranged at the bottom of the PET protective film base film layer, wherein the PET protective film pressure-sensitive adhesive layer is connected with the ITO layer.
As a preferred embodiment of the present utility model, the thickness of the base film layer of the PET protective film is between 25 micrometers and 50 micrometers, and the thickness of the pressure-sensitive adhesive layer of the PET protective film is between 2 micrometers and 4 micrometers.
Drawings
FIG. 1 is a schematic diagram of a practical ITO conductive film;
FIG. 2 is a schematic view of a structure of a protective film according to the present utility model;
fig. 3 is a schematic view of another structure of the protective film of the present utility model.
Description of the embodiments
The following description of the embodiments of the present utility model will be made more clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the present utility model, it should be noted that, if directional indications (such as up, down, left, right, front, rear, top, bottom, inner, outer, vertical, transverse, longitudinal, counterclockwise, clockwise, circumferential, radial, axial … …) are involved in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
An ITO conductive film, as shown in figure 1, comprises a polyester film 1 used for a transparent electrode of an electronic instrument, wherein one surface of the polyester film is coated with a black shading coating 2, the other surface of the polyester film is sputtered with an ITO layer 3, and the upper surface of the ITO layer is provided with a protective film 4.
The black shading coating is coated on one surface of the polyester film, so that the polyester film has excellent shading performance, has anti-scratch capability, does not need to be coated with a hardening coating, plays a role in shading and anti-scratch, does not reduce the tearing strength of the film due to the addition of black shading components in the polyester film, and has excellent heat resistance and low heat shrinkage rate of a finished product; in addition, the ITO layer is sputtered on the other surface of the polyester film, so that the conductivity of the polyester film is better.
As shown in fig. 2 and 3, the protective film may be provided as a PE protective film 41, a PET protective film base film layer 42 on top, and a PET protective film pressure-sensitive adhesive layer 43 provided on the bottom of the PET protective film base film layer. When the protective film is a PE protective film, the protective film is more convenient and has low cost to manufacture, and the thickness is between 25 micrometers and 50 micrometers, so that the protective film can play a better role in protection. When the protection film includes the PET protection film base membranous layer that sets up at the top, and sets up the PET protection film pressure sensitive adhesive layer in PET protection film base membranous layer bottom, PET protection film pressure sensitive adhesive layer is connected with the ITO layer, and PET protection film base membranous layer thickness is located between 25 microns to 50 microns, and PET protection film pressure sensitive adhesive layer thickness is located between 2 microns to 4 microns, can further play better guard action, and easy stripping during the use.
The thickness of the black shading coating is between 4 microns and 10 microns, so that the black shading coating has better surface hardness, anti-scratch performance and shading effect. In addition, the black shading coating is sequentially composed of a mixture of carbon black particles, film-forming resin, a dispersing agent, a curing agent, a catalyst and the like, and the mixture is subjected to a crosslinking reaction after being heated, so that the performances of high shading, high hardness and scratch resistance are further improved. Wherein the particle diameter of the carbon black particles is between 30 nanometers and 100 nanometers, and the shading effect and the surface smoothness of the black shading coating are further improved.
The contact surfaces of the polyester film, the black shading coating and the ITO layer are corona treatment surfaces, so that the adhesive force of the black shading coating and the ITO layer on the polyester film can be increased. In addition, the thickness of the polyester film may be between 125 micrometers and 175 micrometers, thereby further enhancing the overall strength of the ITO conductive film.
The ITO layer is sputtered on the surface of the polyester film to form an indium tin oxide layer, the thickness of the indium tin oxide layer is between 25 nanometers and 50 nanometers, and the ITO layer has the effects of good conductivity, high resistance uniformity, excellent chemical corrosion resistance, good processability, convenience in etching and strong oxidation resistance.
The above embodiments are only for illustrating the detailed aspects of the present utility model, and the present utility model is not limited to the detailed aspects, i.e., it does not mean that the present utility model must be implemented depending on the detailed aspects. It should be apparent to those skilled in the art that any modification of the present utility model, equivalent substitution of raw materials for the product of the present utility model, addition of auxiliary components, selection of specific modes, etc., falls within the scope of the present utility model and the scope of disclosure.
Claims (8)
1. An ITO conductive film, comprising: the transparent electrode polyester film (1) for the electronic instrument is characterized in that one surface of the polyester film is coated with a black shading coating (2), the other surface of the polyester film is sputtered with an ITO layer (3), and a protective film (4) is arranged on the upper surface of the ITO layer.
2. The ITO conductive film according to claim 1, characterized in that the thickness of the black light-shielding coating is between 4 and 10 microns.
3. The ITO conductive film according to claim 1, wherein the thickness of the polyester film is between 125 micrometers and 175 micrometers.
4. An ITO conductive film according to claim 3, wherein the polyester film has corona treated surfaces on both surfaces in contact with the black light-shielding coating and the ITO layer.
5. The ITO conductive film of claim 1, wherein the ITO layer is deposited on the surface of the polyester film by sputtering to form an indium tin oxide layer having a thickness between 25 nm and 50 nm.
6. ITO conductive film according to any of claims 1-5, characterized in that the protective film is a self-adhesive PE protective film (41) with a thickness between 25 and 50 microns.
7. The ITO conductive film according to any one of claims 1 to 5, characterized in that the protective film includes a PET protective film base film layer (42) provided on top, and a PET protective film pressure-sensitive adhesive layer (43) provided on bottom of the PET protective film base film layer, the PET protective film pressure-sensitive adhesive layer being connected to the ITO layer.
8. The ITO conductive film of claim 7, wherein the PET protective film base film layer is between 25 microns and 50 microns thick, and the PET protective film pressure sensitive adhesive layer is between 2 microns and 4 microns thick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321932691.XU CN220709969U (en) | 2023-07-21 | 2023-07-21 | ITO conductive film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321932691.XU CN220709969U (en) | 2023-07-21 | 2023-07-21 | ITO conductive film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220709969U true CN220709969U (en) | 2024-04-02 |
Family
ID=90435205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321932691.XU Active CN220709969U (en) | 2023-07-21 | 2023-07-21 | ITO conductive film |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220709969U (en) |
-
2023
- 2023-07-21 CN CN202321932691.XU patent/CN220709969U/en active Active
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