CN212341854U - Touch screen and electronic equipment - Google Patents
Touch screen and electronic equipment Download PDFInfo
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- CN212341854U CN212341854U CN202022006643.0U CN202022006643U CN212341854U CN 212341854 U CN212341854 U CN 212341854U CN 202022006643 U CN202022006643 U CN 202022006643U CN 212341854 U CN212341854 U CN 212341854U
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Abstract
The utility model discloses a touch-sensitive screen and electronic equipment, wherein, the touch-sensitive screen includes sensing electrode, transmitting electrode and second antireflection layer, its pile structure in sensing electrode with between the transmitting electrode to as the electric capacity dielectric layer. The utility model aims at providing a touch-sensitive screen aims at solving among the prior art touch-sensitive screen transmissivity lower technical problem relatively.
Description
Technical Field
The utility model relates to a touch-sensitive screen technical field, in particular to touch-sensitive screen and applied this touch-sensitive screen's electronic equipment.
Background
In response to the requirement of medium and large size touch screens, the metal mesh technology is a touch technology with the characteristics of cross-generation products and mass production capability, and is also the most attractive technology in all non-ITO transparent conductive films. The greatest drive that metal mesh technology can become the most glaring new show in the open air comes from the demands of the new generation of terminals for film resistance, electrical conductivity, cost, intuitive appearance, durability and flexibility. In addition, from the viewpoint of cost and conductivity, the metal mesh is the best balanced technology compared with the technologies such as nano-silver wire and indium tin oxide.
Although the metal mesh technology has the advantages and reliability mentioned above, the copper light shielding material is, after all, the transmittance of the touch screen manufactured by using the copper light shielding material is still low.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a touch-sensitive screen aims at solving among the prior art touch-sensitive screen transmissivity lower technical problem relatively.
In order to achieve the above object, the utility model provides a touch screen, include: the second anti-reflection layer is overlapped between the induction electrode and the emission electrode to be used as a capacitance dielectric layer.
Optionally, the touch screen further includes a light-transmitting substrate, and the light-transmitting substrate is stacked on a surface of the sensing electrode, which faces away from the second anti-reflection layer.
Optionally, the touch screen further comprises: the first anti-reflection layer is superposed on one surface of the light-transmitting substrate, which is far away from the induction electrode.
Optionally, one surface of the light-transmitting substrate and one surface of the first anti-reflection layer stacked structure are subjected to surface roughening treatment.
Optionally, the light-transmitting substrate is a glass substrate, and a surface of the glass substrate is formed with a compressive stress.
Optionally, the light transmissive substrate is flexible.
Optionally, the sensing electrode and the transmitting electrode each comprise a metal mesh.
Optionally, the second anti-reflection layer is a silicon oxide moth-eye structure or a multi-layer composite structure, and the multi-layer composite structure is at least two of a titanium oxide layer, an aluminum oxide layer or a silicon oxide layer.
Optionally, the thickness of the second anti-reflection layer is 50nm to 0.5 μm.
Optionally, the utility model discloses still include an electronic equipment, electronic equipment includes aforementioned touch-sensitive screen.
The utility model provides a technical scheme: the touch screen comprises an induction electrode, an emission electrode, a second anti-reflection layer and a light-transmitting substrate; the second anti-reflection layer is superposed between the induction electrode and the emission electrode and used as a capacitance dielectric layer; the technical proposal of the utility model is that the second anti-reflection layer which is a non-conductor is laminated between the induction electrode and the emission electrode, so that the second anti-reflection layer can be used as a capacitance dielectric layer; simultaneously, the second antireflection layer still has light transmission performance, therefore the second antireflection layer can also effectively reduce the light reflection that response electrode and transmitting electrode caused as the demand that the capacitance dielectric layer can satisfy the design of capacitive touch screen, has promoted the penetration rate of touch-sensitive screen effectively, the utility model discloses a penetration rate of touch-sensitive screen can reach 95% and above, can reach 98% even.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a touch screen provided by the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | First |
400 | Second |
| 200 | Light-transmitting |
500 | |
| 300 | Induction electrode |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout includes three juxtapositions, exemplified by "A and/or B" including either A or B or both A and B. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
The utility model provides a touch screen.
Referring to fig. 1, in an embodiment of the present invention, the touch screen includes a sensing electrode 300, an emission electrode 500, a second anti-reflection layer 400, and a light-transmitting substrate 200; the second anti-reflection layer 400 is stacked between the sensing electrode 300 and the transmitting electrode 500 to serve as a capacitance dielectric layer. The technical scheme of the utility model is that the second anti-reflection layer 400 which is a non-conductor is stacked between the induction electrode 200 and the transmitting electrode 500, so that the second anti-reflection layer 400 can be used as a capacitance dielectric layer; simultaneously, second antireflection layer 400 still has light transmission performance, therefore second antireflection layer 400 can also effectively reduce the light reflection that response electrode 300 and transmitting electrode 500 caused as the demand that the capacitance dielectric layer can satisfy the design of capacitive touch screen, has promoted the transmissivity of touch-sensitive screen effectively, the utility model discloses a transmissivity of touch-sensitive screen can reach 95% and above, can reach 98% even.
Further, the touch screen comprises a light-transmitting substrate 200, wherein the light-transmitting substrate 200 is stacked on a surface of the sensing electrode 300, which faces away from the second anti-reflection layer 400; one side of the sensing electrode 300 is a transparent substrate 200, and the other side thereof is a second anti-reflection layer 400, and both the transparent substrate 200 and the second anti-reflection layer 400 can allow light to penetrate therethrough, thereby further reducing light reflection caused by the sensing electrode 300.
Further, the touch screen further includes: the first anti-reflection layer 100 is stacked on a surface of the transparent substrate 200 away from the sensing electrode 300, so that the transmittance of the touch screen can be further improved. In the process of the embodiment, the first anti-reflection layer 100 is stacked on the upper surface of the transparent substrate 200, the sensing electrode 300 is stacked on the lower surface of the transparent substrate 200, the second anti-reflection layer 400 is stacked on the lower surface of the sensing electrode 300, and the emission electrode 500 is stacked on the lower surface of the second anti-reflection layer 400, so as to form the touch screen. In the process of the embodiment, the first anti-reflective layer 200 may be a silicon oxide moth-eye structure, a titanium oxide/aluminum oxide/silicon oxide multi-layer composite stack structure, etc., and the first anti-reflective layer 200 may be fabricated by single/multi-layer vacuum sputtering, single/multi-layer vacuum evaporation, and single/multi-layer coating.
Furthermore, the surface of the overlapping structure of the transparent substrate 200 and the first anti-reflection layer 100 is roughened, so that the adhesion between the first anti-reflection layer 100 and the transparent substrate 200 can be improved; specifically, the surface of the transparent substrate 200 for disposing the first anti-reflection layer 100 may be roughened by using sodium hydroxide, potassium hydroxide and hydrofluoric acid before coating, or the oxygen radical number on the surface of the transparent substrate 200 is increased by using atmospheric oxygen plasma, and then coating is performed.
Further, the transparent substrate 200 is a glass substrate, and a surface of the glass substrate is formed with a compressive stress. In the process of the embodiment, the glass substrate 200 may be one of alkali glass and alkali-free glass; in the detailed description, the glass substrate 200 may be an aluminosilicate glass. Al in alumino-silicate glasses2O3And SiO2High content, good chemical stability, electrical insulation, mechanical strength and low thermal expansion coefficient. In the forming process of the glass substrate, compressive stress can be formed on the surface of the glass through a salt bath potassium ion infiltration process, so that the generation of cracks is inhibited, and the toughness and the foldability are improved.
Further, the light-transmitting substrate 200 is flexible. In the concrete implementation process, the printing opacity base plate can be the collapsible aluminosilicate glass of the flexibility of kaning with schottky production, thereby the utility model discloses a function of folding and curved surface screen can be realized to the touch-sensitive screen.
Further, the sensing electrode 300 and the transmitting electrode 500 each include a metal mesh. In the specific implementation process, the sensing electrode 300 and the emitting electrode 500 can be completed by a yellow light process and a laser engraving method. Compared with the technologies such as nano silver wire and indium tin oxide, the metal mesh has the advantages of low impedance, one-step forming, narrow edge line, flexibility, no ion migration, and the like. (1) Low impedance: the resistance of the metal grid is only <0.1 omega, while the nano-silver wire is 60-100 omega and the indium tin oxide is 150-400 omega. (2) One-step forming: the metal mesh can be formed once, the visible area and the side line can be manufactured at one time, the visible area needs to be firstly patterned by the nano silver wires and the indium tin oxide, and then the silver side line is manufactured by using a screen printing or laser engraving process, so that the yield is influenced. (3) Narrow side lines: the width of the metal grid frame can be 10 μm/10 μm by the yellow light process, while the width of the nano silver frame can only be realized to 30 μm/30 μm by laser engraving, and the width of the indium tin oxide can only be 30 μm/30 μm to 50 μm/50 μm by using the screen printing type silver paste and the yellow light exposure type silver paste. (4) Flexible folding: the metal grid and the nano silver wire are all made of metal with high ductility, and can be bent for 100k times under the condition that the radius is 5mm, and the indium tin oxide is conductive metal oxide, presents a hard and brittle characteristic, and can not meet the requirements of bending and bending, so the touch screen of the utility model can realize the folding function. (5) The metal grid and the ITO have no problem of ion migration, but the nano-silver wire has the problem of silver ion migration.
Further, the second anti-reflection layer 400 is a silicon oxide moth-eye structure or a multi-layer composite structure; the multilayer composite structure is at least two of a titanium oxide layer, an aluminum oxide layer, or a silicon oxide layer. The second anti-reflective layer 400 is stacked between the sensing electrode 200 and the emitter electrode 500 by single/multi-layer vacuum sputtering, single/multi-layer vacuum evaporation and single/multi-layer coating. In a specific embodiment, the second anti-reflection layer 400 is a silicon oxide moth-eye structure. On the one hand, silicon oxide is a good insulating material, so that silicon oxide is a preferred choice as a dielectric layer of a capacitor; on the other hand, silicon oxide moth-eye structure has moth-eye effect, and when light got into surperficial sub-micron structure scale and be less than the light wavelength, this microstructure can't be discerned to the light wave, then is continuous variation along the depth direction at the refracting index of surface, can reduce the reflection phenomenon that the sharp change of refracting index caused, consequently the utility model discloses a make second antireflection layer 400 for silicon oxide moth-eye structure, can reduce the light reflection that induction electrode 300 and transmitting electrode 500 caused effectively. It is understood that the present application is not limited thereto and the second anti-reflection layer 400 is a composite multi-layered structure of a titanium oxide layer, an aluminum oxide layer, and a silicon oxide layer.
Further, the thickness of the second anti-reflection layer 400 is 50nm to 0.5 μm, which can meet the development requirement of the ultra-thin screen. The technical scheme of the utility model among, second antireflection layer 400 except can promoting the penetration rate, can also effectively hang down the thickness that reduces the touch-sensitive screen, its reason lies in: the second anti-reflection layer 400 itself can be used as a capacitor dielectric layer without using polyethylene terephthalate as the capacitor dielectric layer; in the touch screen using polyethylene terephthalate as the capacitor dielectric layer, at least the optical glue (the required thickness is at least 25 μm, and at least two layers are required) and the PET layer (the required thickness is at least 50 μm, and at least two layers are required) are required to satisfy the design requirement of the capacitor touch screen, and the second anti-reflection layer 400 of the present invention can satisfy the requirement only with the thickness of 50nm to 0.5 μm. Based on this, the technical scheme of the utility model discloses a can reduce the thickness of sense of touch unit from 154 mu m (including response electrode 2 mu m and transmitting electrode 2 mu m) to 4 ~ 5 mu m (including response electrode 2 mu m and transmitting electrode 2 mu m), thickness reduction range more than 30 times, can satisfy ultra-thin demand. In addition, the thickness of the second anti-reflection layer 400 is smaller compared to polyethylene terephthalate as a capacitance dielectric layer, so that the larger the capacitance value of the touch screen is, the smaller the impedance is, and the development requirement of the low impedance or ultra-low impedance touch screen is met.
The utility model discloses still provide an electronic equipment, this electronic equipment includes the touch-sensitive screen, and the concrete structure of this touch-sensitive screen refers to above-mentioned embodiment, because electronic equipment has adopted the whole technical scheme of above-mentioned all embodiments, consequently has all beneficial effects that the technical scheme of above-mentioned embodiment brought at least, and the repeated description is no longer given here. The electronic equipment further comprises a shell, wherein the shell and the touch screen are in contact with each other and are mutually kept; in a specific implementation process, the casing (not shown) is provided with a mounting groove, and the touch screen can be provided with mounting protrusions corresponding to the mounting groove to realize contact and holding with each other; it is to be understood that the present application is not limited thereto, the housing has a fitting surface, and the touch screens can be contacted and held with each other by being pasted with the housing. In a specific implementation process, the electronic device may be a notebook, a desktop, a mobile phone, an IPAD, a television, or the like.
Furthermore, the electronic equipment comprises a touch chip, and the touch chip is electrically connected with the touch screen; specifically, in the implementation process, when the touch screen is touched, the sensing electrodes and the transmitting electrodes transmit touch signals to the touch chip through corresponding leads; in most cases, the sensing electrode 300 is closer to the transparent substrate 200 and the emitting electrode 500 is closer to the touch chip. It is understood that the present application is not limited thereto, and the sensing electrode 300 may be close to the touch chip and the transmitting electrode 500 is closer to the light-transmitting substrate 200.
The above is only the optional embodiment of the present invention, and not therefore the limit of the patent scope of the present invention, all of which are in the concept of the present invention, the equivalent structure transformation of the content of the specification and the drawings is utilized, or the direct/indirect application is included in other related technical fields in the patent protection scope of the present invention.
Claims (10)
1. A touch screen, comprising:
the induction electrode is arranged on the base plate,
an emitting electrode is provided on the substrate,
and the second anti-reflection layer is stacked between the induction electrode and the emission electrode and used as a capacitance dielectric layer.
2. The touch screen of claim 1, further comprising a light-transmissive substrate overlying a side of the sensing electrode facing away from the second anti-reflection layer.
3. The touch screen of claim 2, further comprising a first anti-reflection layer overlying a side of the transparent substrate facing away from the sensing electrodes.
4. The touch screen of claim 3, wherein one side of the light-transmitting substrate and the first anti-reflection lamination is subjected to surface roughening treatment.
5. The touch screen of claim 2, wherein the light-transmissive substrate is a glass substrate, and a surface of the glass substrate is formed with a compressive stress.
6. The touch screen of claim 2, wherein the light transmissive substrate is flexible.
7. The touch screen of any of claims 1-6, wherein the sense electrode and the transmit electrode each comprise a metal mesh.
8. The touch screen of any of claims 1-6, wherein the second anti-reflective layer is a silicon oxide moth eye structure or a multilayer composite structure that is at least two of a titanium oxide layer, an aluminum oxide layer, or a silicon oxide layer.
9. The touch screen of any of claims 1-6, wherein the second anti-reflective layer has a thickness of 50nm to 0.5 μm.
10. An electronic device, characterized in that the electronic device comprises a touch screen according to any one of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022006643.0U CN212341854U (en) | 2020-09-14 | 2020-09-14 | Touch screen and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022006643.0U CN212341854U (en) | 2020-09-14 | 2020-09-14 | Touch screen and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN212341854U true CN212341854U (en) | 2021-01-12 |
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| CN202022006643.0U Active CN212341854U (en) | 2020-09-14 | 2020-09-14 | Touch screen and electronic equipment |
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| CN (1) | CN212341854U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113792516A (en) * | 2021-08-13 | 2021-12-14 | 深圳市志凌伟业光电有限公司 | Method for optimizing electromagnetic shielding member circuit and electromagnetic shielding member |
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2020
- 2020-09-14 CN CN202022006643.0U patent/CN212341854U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113792516A (en) * | 2021-08-13 | 2021-12-14 | 深圳市志凌伟业光电有限公司 | Method for optimizing electromagnetic shielding member circuit and electromagnetic shielding member |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Su Wei Inventor after: Ye Zonghe Inventor before: Su Wei Inventor before: Ye Zonghe Inventor before: Wang Haifeng |
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| CB03 | Change of inventor or designer information |