CN220584663U - OGS touch screen, touch display module and display device - Google Patents
OGS touch screen, touch display module and display device Download PDFInfo
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- CN220584663U CN220584663U CN202321989374.1U CN202321989374U CN220584663U CN 220584663 U CN220584663 U CN 220584663U CN 202321989374 U CN202321989374 U CN 202321989374U CN 220584663 U CN220584663 U CN 220584663U
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- 239000000758 substrate Substances 0.000 claims abstract description 27
- 229910052709 silver Inorganic materials 0.000 claims description 20
- 239000004332 silver Substances 0.000 claims description 20
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 19
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 12
- 238000002834 transmittance Methods 0.000 claims description 6
- 239000005388 borosilicate glass Substances 0.000 claims description 4
- 239000005361 soda-lime glass Substances 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 abstract description 8
- 230000004075 alteration Effects 0.000 abstract description 4
- 239000004020 conductor Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000002310 reflectometry Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- CLOMYZFHNHFSIQ-UHFFFAOYSA-N clonixin Chemical compound CC1=C(Cl)C=CC=C1NC1=NC=CC=C1C(O)=O CLOMYZFHNHFSIQ-UHFFFAOYSA-N 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004383 yellowing Methods 0.000 description 1
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Abstract
The application provides an OGS touch screen, a touch display module and a display device. The OGS touch screen comprises a substrate, an IM layer, an ITO layer, a first frame ink layer and conductive ink, wherein the substrate, the IM layer, the ITO layer and the first frame ink layer are sequentially laminated; the ITO layer comprises a plurality of ITO electrodes, gaps are formed between adjacent ITO electrodes, the first frame ink layer is in contact with the IM layer through the gaps, the first frame ink layer is also in contact with the ITO electrodes, through holes are formed in the ITO electrodes by the first frame ink layer, and the conductive ink is arranged in the through holes and is connected with the ITO electrodes. The OGS touch screen can reduce visual chromatic aberration of ITO areas and non-ITO areas in the OGS touch screen.
Description
Technical Field
The application relates to the technical field of display, in particular to an OGS touch screen, a touch display module and a display device.
Background
An OGS (One Glass Solution) touch screen is an electronic product protection screen manufactured by a technology of directly forming an ITO (Indium tin oxide) conductive film on a protection glass and a sensor. In the prior art, an OGS touch screen is mainly composed of a glass substrate, an ink layer, an ITO layer and a metal wire layer, and in order to form the ITO layer, a sputtering process is generally required, and the temperature involved in the sputtering process can reach 320 ℃, so that the formed ink layer can undergo multiple high-temperature processes, and the ink layer in the existing OGS touch screen often has the problems of poor appearance such as bluing, yellowing and the like. In order to solve the appearance problem of the ink layer, the prior art proposes to plate an ITO layer on the glass substrate first, and make a through hole through the shading layer to make the electrode exposing travel conduct up and down, and the scheme can make the visual contrast of the ITO region and the non-ITO region larger.
Disclosure of Invention
An object of the present application is to provide an OGS touch screen, a touch display module and a display device, so as to solve the technical problem that the visual contrast between an ITO area and a non-ITO area in the prior art is large.
The technical scheme of the application is as follows, providing an OGS touch screen, which comprises a substrate, an IM layer, an ITO layer, a first frame ink layer and conductive ink, wherein the substrate, the IM layer, the ITO layer and the first frame ink layer are sequentially laminated;
the ITO layer comprises a plurality of ITO electrodes, gaps are formed between adjacent ITO electrodes, the first frame ink layer is in contact with the IM layer through the gaps, the first frame ink layer is also in contact with the ITO electrodes, through holes are formed in the ITO electrodes by the first frame ink layer, and the conductive ink is arranged in the through holes and is connected with the ITO electrodes.
Further, the OGS touch screen further includes silver paste, and the silver paste forms a trace on a surface of the first frame ink layer away from the IM layer and is connected with the conductive ink.
Further, the OGS touch screen further includes a second frame ink layer, where the second frame ink layer covers the first frame ink layer and the silver paste.
Further, the substrate comprises soda lime glass or borosilicate glass.
Further, the saidThe IM layer includes NB 2 O 5 Layer and SiO 2 A layer, the substrate, the NB 2 O 5 Layer and said SiO 2 The layers are stacked in sequence.
Further, the transmittance of the IM layer to visible light is more than 85%.
Further, the thickness of the IM layer is 70-80 nm, and the NB 2 O 5 The thickness of the layer is 3-10 nm.
Further, the conductive ink includes the insulating ink and a conductive material dispersed in the insulating ink, the conductive material being for conducting the silver paste with the ITO electrode in a state where the ITO electrode is energized.
Another technical scheme of the application is as follows, and provides a touch display module, including the OGS touch screen according to any one of the above technical schemes.
Another technical scheme of the application is as follows, and provides a display device, including the OGS touch screen according to any one of the above technical schemes.
The beneficial effects of this application lie in: the substrate, the IM layer, the ITO layer and the first frame ink layer are sequentially stacked; the ITO layer comprises a plurality of ITO electrodes, gaps are formed between adjacent ITO electrodes, the first frame ink layer is in contact with the IM layer through the gaps, the first frame ink layer is also in contact with the ITO electrodes, through holes are formed in the ITO electrodes by the first frame ink layer, and the conductive ink is arranged in the through holes and is connected with the ITO electrodes; through the technical scheme, the visual chromatic aberration of the ITO area and the non-ITO area in the OGS touch screen can be reduced.
Drawings
Fig. 1 is a first schematic structural diagram of an OGS touch screen provided in an embodiment of the present application;
fig. 2 is a second schematic structural diagram of an OGS touch screen provided in an embodiment of the present application;
fig. 3 is a third schematic structural diagram of an OGS touch screen provided in an embodiment of the present application.
Reference numerals: 1-a substrate; a 2-IM layer; a 3-ITO layer; 4-a first frame ink layer; 5-conductive ink; 6-silver paste; 7-a second border ink layer.
Detailed Description
The following description of the technical solutions in the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of such phrases in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
Fig. 1 is a first structural schematic diagram of an OGS touch screen according to an embodiment of the present application. It should be noted that, if the same result is substantially achieved, the OGS touch screen of the present application is not limited to the structure shown in fig. 1. As shown in fig. 1, the OGS touch screen includes a substrate 1, an IM layer 2, an ITO layer 3, a first frame ink layer 4, and a conductive ink 5, where the substrate 1, the IM layer 2, the ITO layer 3, and the first frame ink layer 4 are stacked in order;
the ITO layer 3 comprises a plurality of ITO electrodes, gaps are formed between adjacent ITO electrodes, the first frame ink layer 4 is in contact with the IM layer 2 through the gaps, the first frame ink layer 4 is also in contact with the ITO electrodes, the first frame ink layer 4 forms through holes on the ITO electrodes, and the conductive ink 5 is arranged in the through holes and is connected with the ITO electrodes.
In the embodiment of the present application, the substrate 1, the IM layer 2, the ITO layer 3, and the first frame ink layer 4 are sequentially stacked; forming a gap between adjacent ITO electrodes, enabling the first frame ink layer 4 to be in contact with the IM layer 2 through the gap, enabling the first frame ink layer 4 to be in contact with the ITO electrodes, enabling the first frame ink layer 4 to form through holes on the ITO electrodes, and enabling the conductive ink 5 to be arranged in the through holes and connected with the ITO electrodes; the IM layer 2 is arranged between the substrate 1 and the ITO layer 3, so that the change rate of reflectivity of the ITO layer 3 before and after etching is reduced, and the visual chromatic aberration of an ITO region and a non-ITO region in an OGS touch screen can be reduced.
In one embodiment, the substrate 1, the IM layer 2 and the ITO layer 3 may form a shadow-eliminating ITO glass, and a pattern or text may be formed by an ITO electrode in the ITO layer 3.
In some embodiments, the OGS touch screen further includes silver paste 6, where the silver paste 6 forms traces on a side of the first bezel ink layer 4 away from the IM layer 2 and is connected to the conductive ink 5.
According to the embodiment of the application, the silver paste 6 is led to be far away from the first frame ink layer 4 and form a wiring on one side of the IM layer 2, and is connected with the conductive ink 5, so that the silver paste 6 and the conductive ink 5 can be conducted, the ITO electrode is electrified, and then the pattern or the character display is realized.
In a specific embodiment, a second structural schematic diagram of the OGS touch screen is shown in fig. 2. The silver paste 6 is connected with the conductive ink 5, so that the conduction between the silver paste 6 and the conductive ink 5 can be realized, the conductive ink 5 is in contact with the ITO electrode, and the conduction to the ITO electrode can be realized by electrifying the silver paste 6.
In some embodiments, the OGS touch screen further comprises a second bezel ink layer 7, the second bezel ink layer 7 covering the first bezel ink layer 4 and the silver paste 6.
According to the embodiment of the application, the second frame ink layer 7 is used for covering the first frame ink layer 4 and the silver paste 6, so that light leakage of the first frame ink layer 4 can be avoided, water vapor entering the first frame ink layer 4 due to wiring of the silver paste 6 can be avoided, and scratch of the first frame ink layer 4 by foreign objects can be avoided.
In a specific embodiment, a third structural schematic diagram of the OGS touch screen is shown in fig. 3. The first frame ink layer 4 may be referred to as a first light shielding layer, and the second frame ink layer 7 may be referred to as a second light shielding layer. The first frame ink layer 4 and the second frame ink layer 7 are disposed at the frame positions of the OGS touch screen, and the first frame ink layer 4 and the second frame ink layer 7 may be formed by a screen printing process or a yellow light process.
In some embodiments, the substrate 1 comprises soda lime glass or borosilicate glass.
According to the embodiment of the application, the substrate 1 comprises soda lime glass or borosilicate glass, and the glass substrate is formed, so that the light transmittance of the OGS touch screen can be improved.
In some embodiments, the IM layer 2 includes an NB 2 O 5 Layer and SiO 2 A layer of the substrate 1, the NB 2 O 5 Layer and said SiO 2 The layers are stacked in sequence. Wherein, the IM layer 2 is INDMEX MARGIN layer.
In the embodiment of the application, the IM layer 2 comprises NB 2 O 5 And SiO 2 Causing the substrate 1 and the NB to be 2 O 5 Layer and said SiO 2 The layers are laminated in sequence, so that the change rate of the reflectivity of the ITO layer 3 is reduced before and after etching, and the visual contrast of the ITO region and the non-ITO region can be reduced.
In some embodiments, the IM layer 2 has a transmittance of greater than 85% for visible light.
According to the embodiment of the application, the transmittance of the IM layer 2 to visible light is more than 85%, so that the OGS touch screen has a good display effect.
In some embodiments, the thickness of the IM layer 2 is 70-80 nm, and the NB 2 O 5 The thickness of (2) is 3-10 nm.
In the embodiment of the application, the NB is formed by making the thickness of the IM layer 2 70-80 nm 2 O 5 The thickness of the OGS touch screen is 3-10 nm, so that the OGS touch screen is not too thick or too thin, and the OGS touch screen has good display effect.
In one particular embodiment, IM layer 2 is defined by NB 2 O 5 And SiO 2 Two layers are laminated, NB is first applied on the substrate 1 2 O 5 Coating SiO again 2 The transmittance of the IM layer 2 to visible light can be controlled to be more than 85%, the thickness of the IM layer 2 can be controlled to be between 70 and 80nm, wherein, NB 2 O 5 The thickness of (2) is controlled between 3 and 10nm.
In IM layer 2, when NB 2 O 5 When the film is thicker, the reflection curve is lifted up by taking the middle part as a point, the reflectivity is increased, otherwise, when the film is thinner, the reflection curve is lowered down, and the reflection curve tends to be straight and the reflectivity is reduced; when SiO 2 When the film is thicker, the reflection curve decreases with the increase of the film thickness, and the reflectance decreases as the film is bent downward below 450nm, and the film is tilted upward after the film is thicker than 90 nm. When SiO 2 When the film thickness is thinner, the reflectivity is increased, and as the thickness is reduced, the reflection curve below 450nm is gradually raised upwards. When both layers are thin, the reflection curve becomes inclined from 400nm to 700 nm; when NB 2 O 5 And SiO 2 When both layers are thick, the reflection curve curves downward from the front at 550 nm.
In some embodiments, the conductive ink 5 includes the insulating ink and a conductive material dispersed in the insulating ink, the conductive material being used to conduct the silver paste 6 with the ITO electrode in a state in which the ITO electrode is energized.
According to the embodiment of the application, the conductive ink 5 comprises the insulating ink and the conductive materials dispersed in the insulating ink, so that the conductive ink 5 is conductive, the conductive ink 5 can be kept solid, the silver paste 6 and the ITO electrode are conducted in the state that the ITO electrode is electrified, and the OGS touch screen can normally display preset patterns or characters.
In a specific embodiment, the insulating ink and the conductive material are mixed, and the conductive material is added into the insulating ink, so as to form the conductive ink 5, and the conductive ink 5 may be solid. Since the conductive ink 5 and the first frame ink layer 4 each include insulating ink, color difference in appearance can be avoided, and the conductive ink 5 can be connected to the first frame ink layer 4 by printing in the through hole formed on the ITO electrode and connected to the ITO electrode, wherein the conductive ink 5 and the ITO electrode can be connected in contact and turned on after being energized. The conductive material may be conductive gold balls or other materials, as long as the materials are conductive, printed and in color close to the first frame ink layer 4.
In some embodiments, the first border ink layer 4 comprises an insulating ink and the second border ink layer 7 comprises an insulating ink. By making the first frame ink layer 4 include insulating ink, the frame light of the OGS touch screen is shielded, and meanwhile, the conduction with the ITO electrode can be avoided, so that the display effect of the OGS touch screen is affected; by making the second border ink layer 7 include insulating ink, it is possible to avoid the second border ink layer 7 from conducting electricity, thereby affecting the display effect of the OGS touch screen.
In one embodiment, the process flow of the OGS touch screen may include plating the IM layer 2, then plating the ITO layer 3, then making an electrode pattern, sequentially forming the first border ink layer 4, the conductive ink 5, the silver paste 6, and the second border ink layer 7, and then performing cutting, CNC (Computerized Numerical Control, computer numerical control) and binding.
According to the OGS touch screen provided by the embodiment of the application, the substrate 1, the IM layer 2, the ITO layer 3 and the first frame ink layer 4 are sequentially stacked; forming a gap between adjacent ITO electrodes, enabling the first frame ink layer 4 to be in contact with the IM layer 2 through the gap, enabling the first frame ink layer 4 to be in contact with the ITO electrodes, enabling the first frame ink layer 4 to form through holes on the ITO electrodes, and enabling the conductive ink 5 to be arranged in the through holes and connected with the ITO electrodes; visual chromatic aberration of ITO areas and non-ITO areas in the OGS touch screen can be reduced.
According to the OGS touch screen provided by the embodiment of the application, the IM layer 2 is plated between the substrate 1 and the ITO layer 3, so that after the shadow-eliminating ITO glass is etched to manufacture an electrode circuit, the change rate DeltaR% of reflectivity is less than 0.5% before and after the ITO layer 3 is etched in the range of 500-600 nm of visible light wavelength, the visual contrast of an ITO region and a non-ITO region is reduced, the ITO etched line is thinned, and the line of the pattern circuit is not seen under normal light, so that the shadow-eliminating pattern effect is achieved.
The embodiment of the application provides a touch display module, which comprises the OGS touch screen according to any one of the embodiments.
The embodiment of the application provides a display device, which comprises the OGS touch screen in any one of the embodiments. The display device can be a mobile phone, a tablet personal computer, a television or electronic paper and the like.
The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing examples only represent preferred embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the claims. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application. Accordingly, the scope of protection of the present application is to be determined by the claims appended hereto.
Claims (9)
1. The OGS touch screen is characterized by comprising a substrate, an IM layer, an ITO layer, a first frame ink layer and conductive ink, wherein the substrate, the IM layer, the ITO layer and the first frame ink layer are sequentially laminated;
the ITO layer comprises a plurality of ITO electrodes, gaps are formed between adjacent ITO electrodes, the first frame ink layer is in contact with the IM layer through the gaps, the first frame ink layer is also in contact with the ITO electrodes, through holes are formed in the ITO electrodes by the first frame ink layer, and the conductive ink is arranged in the through holes and is connected with the ITO electrodes.
2. The OGS touch screen of claim 1, further comprising a silver paste that forms traces on a side of the first frame ink layer remote from the IM layer and is connected to the conductive ink.
3. The OGS touch screen of claim 2, further comprising a second bezel ink layer covering the first bezel ink layer and the silver paste.
4. The OGS touch screen of claim 1, wherein the substrate comprises soda lime glass or borosilicate glass.
5. The OGS touch screen of claim 1, wherein the IM layer comprises NB 2 O 5 Layer and SiO 2 A layer, the substrate, the NB 2 O5 layer and SiO 2 The layers are stacked in sequence.
6. The OGS touch screen of claim 5, wherein the IM layer has a transmittance of greater than 85% for visible light.
7. The OGS touch screen of claim 6, wherein the IM layer has a thickness of 70-80 nm, and the NB 2 O 5 The thickness of the layer is 3-10 nm.
8. A touch display module comprising an OGS touch screen as claimed in any one of claims 1 to 7.
9. A display device comprising an OGS touch screen as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321989374.1U CN220584663U (en) | 2023-07-26 | 2023-07-26 | OGS touch screen, touch display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321989374.1U CN220584663U (en) | 2023-07-26 | 2023-07-26 | OGS touch screen, touch display module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220584663U true CN220584663U (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321989374.1U Active CN220584663U (en) | 2023-07-26 | 2023-07-26 | OGS touch screen, touch display module and display device |
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| Country | Link |
|---|---|
| CN (1) | CN220584663U (en) |
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2023
- 2023-07-26 CN CN202321989374.1U patent/CN220584663U/en active Active
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