CN211742084U - Touch sensor, touch display equipment and wisdom blackboard - Google Patents
Touch sensor, touch display equipment and wisdom blackboard Download PDFInfo
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- CN211742084U CN211742084U CN202020718914.2U CN202020718914U CN211742084U CN 211742084 U CN211742084 U CN 211742084U CN 202020718914 U CN202020718914 U CN 202020718914U CN 211742084 U CN211742084 U CN 211742084U
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Abstract
The utility model discloses a touch sensor, touch-control display device and wisdom blackboard belongs to teaching equipment technical field. The utility model discloses a touch sensor, which comprises a transparent substrate, cover plate glass and an adhesive layer, wherein the adhesive layer is a curable adhesive layer; the conducting layer for realizing touch operation is arranged on the curable adhesive layer, and then the curable adhesive layer is directly utilized to glue the transparent substrate and the cover plate glass to form the touch sensor, so that the conducting layer is not required to be arranged on the substrate, and the substrate is glued with the transparent substrate and the cover plate glass by using glue, thereby simplifying the structure of the touch sensor and reducing the production cost. The utility model discloses a touch-control display device to and including this touch-control display device's wisdom blackboard, its touch-control sensor need not use the substrate in order to offer the conducting layer and bear the thing, therefore has improved touch-control sensor's luminousness, thereby has improved touch-control display device's display effect.
Description
Technical Field
The utility model relates to the technical field, more specifically say, relate to a touch sensor, touch-control display device and wisdom blackboard.
Background
The touch sensor is an absolute addressing system which is very suitable for man-machine interaction, and can complete complex operation of a display interface by simple action of fingers. But along with the development of products such as mobile terminal, wearable equipment, wisdom household electrical appliances, education blackboard, the demand to the touch-sensitive screen is constantly increasing, and the requirement to the touch-sensitive screen is also higher and higher simultaneously.
In the related art, for a large-sized touch display device, a touch unit generally includes a transmitting layer, an adhesive layer, a receiving layer, an adhesive layer, and a cover glass. For example, chinese patent application No. 2016211463514, which discloses a transparent capacitive touch ultra-high definition electronic blackboard, this electronic blackboard includes fixed frame, clear glass apron and touch all-in-one, the touch all-in-one includes the control mainboard, liquid crystal module and electric capacity touch-control membrane all are connected with the control mainboard electricity, electric capacity touch-control membrane includes follows supreme first nanometer silver line conductive film layer that sets gradually down, first optics PET rete, second nanometer silver line conductive film layer and second optics PET rete, be equipped with X direction conductive pattern and conductive silver thick liquid electrode on the first nanometer silver line conductive film layer, be equipped with Y direction conductive pattern and conductive silver thick liquid electrode on the second nanometer silver line conductive film layer, the conductive silver thick liquid electrode of first nanometer silver line conductive film layer and the conductive silver liquid electrode of second nanometer silver line conductive film layer all connect the FPC circuit board, the laminating of second optics PET rete is at the internal surface of clear glass apron.
However, when the capacitive screen is manufactured by the traditional method, the conductive layer needs to be arranged on the base material, and then the base material and the different structural layers need to be glued by the adhesive, and the adhesive can volatilize harmful substances in the production process, so that the production environment is easily polluted, and the health of a producer is damaged.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved by the utility model
An object of the utility model is to overcome among the prior art not enough that jumbo size touch display device's touch-control unit structure is comparatively complicated, provide a touch sensor. According to the scheme, the conductive layer is directly formed on the curable adhesive layer, and the transparent substrate and the cover plate glass are glued by the curable adhesive layer to form the touch sensor, so that the structure is simplified, and the production cost is reduced.
Another object of the utility model is to provide a touch-control display device to and including this touch-control display device's wisdom blackboard, improve touch-control display device's display effect.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a touch sensor, which comprises a transparent substrate, cover plate glass and an adhesive layer for bonding the transparent substrate and the cover plate glass, wherein the adhesive layer is a curable adhesive layer; the adhesive layer is provided with a first side surface facing the cover plate glass and a second side surface facing the transparent substrate, and at least one of the first side surface and the second side surface is provided with a conductive layer.
Further, the curable adhesive layer is an adhesive layer formed after the OCA colloid is cured.
Further, the curable adhesive layer is acrylic acid hydrogel, or jelly glue, or an adhesive layer formed after the hot melt adhesive is cured.
Further, the conductive layer is formed on the adhesive layer by coating, printing, sputtering or spraying.
Furthermore, a touch graphic element is arranged on the conductive layer and is formed in a laser etching, wet etching or etching paste etching mode.
Further, the conductive layer is formed of an enameled wire or a copper wire disposed on the adhesive layer.
Furthermore, a wire groove used for containing the enameled wire or the copper wire is formed in the side face of the adhesive layer.
The transparent substrate is made of any one of polyethylene terephthalate, polycarbonate, polyethylene, polyvinyl chloride, polypropylene, polystyrene, polymethyl methacrylate and glass.
The utility model discloses a touch-control display device, including the display screen, be equipped with foretell touch-control sensor on the display screen.
The utility model discloses a wisdom blackboard is formed by at least one touch-control display device and a clipboard concatenation, touch-control display device is foretell touch-control display device.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:
(1) the utility model discloses a touch sensor, which comprises a transparent substrate, cover plate glass and an adhesive layer, wherein the adhesive layer is a curable adhesive layer; the conducting layer for realizing touch operation is arranged on the curable adhesive layer, and then the curable adhesive layer is directly utilized to glue the transparent substrate and the cover plate glass to form the touch sensor, so that the conducting layer is not required to be arranged on the substrate, and the substrate is glued with the transparent substrate and the cover plate glass by using glue, thereby simplifying the structure of the touch sensor and reducing the production cost.
(2) The utility model discloses in, the wire casing has been seted up on the side of adhesive layer to set up enameled wire or copper line in the wire casing, in order to form the conducting layer, therefore can improve the side of adhesive layer and transparent substrate/cover plate glass's area of contact, improve the adhesive layer to transparent substrate and cover plate glass's the intensity of splicing.
(3) The utility model discloses a touch display device, which comprises a display screen, wherein a touch sensor is arranged on the display screen; because need not set up the substrate in the touch sensor in order to provide the conducting layer in order to bear the weight of the thing, therefore showing and improving the utility model discloses a touch sensor's light transmissivity, and then make the image that touch-control display device shows more clear.
(4) The utility model discloses a wisdom blackboard is formed by at least one touch-control display device and a clipboard concatenation, and is provided with touch sensor on this touch-control display device's the display screen, and touch sensor comprises transparent substrate and the cover plate glass who splices through the adhesive layer, and touch sensor's conducting layer is formed on the adhesive layer, therefore can improve the display definition of display screen, and then makes things convenient for in the use of wisdom blackboard.
Drawings
Fig. 1 is a schematic structural diagram of a conventional capacitive touch sensor;
fig. 2 is a schematic structural diagram of the touch sensor of the present invention;
FIG. 3 is a schematic view of the connection relationship between the enameled wire and the adhesive layer;
fig. 4 is a schematic structural view of the middle wire casing of the present invention.
The reference numerals in the schematic drawings illustrate: 1. a transparent substrate; 2. a substrate; 3. a conductive layer; 4. an adhesive layer; 41. a wire slot; 5. a cover glass.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
The structure, ratio, size and the like shown in the drawings of the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention does not have the substantial significance in the technology, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy which can be produced by the present invention and the achievable purpose. In addition, the terms "upper", "lower", "left", "right" and "middle" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1, in the related art, a capacitive touch sensor is commonly used, which includes a transparent substrate 1, a base material 2, a conductive layer 3, an adhesive layer 4, and a cover glass 5. A conductive layer 3 may also be disposed between the transparent substrate 1 and the base material 2, and the conductive layer 3 located between the transparent substrate 1 and the base material 2 may be used to shield the display screen from interfering with the touch sensor. The commonly used capacitive touch sensor has a complex structure, and an adhesive is easy to volatilize in the production and manufacturing processes, so that the production environment is influenced.
In order to solve the above problem, referring to fig. 2, the capacitive touch sensor of the present embodiment includes a transparent substrate 1, a cover glass 5, and an adhesive layer 4 disposed between the transparent substrate 1 and the cover glass 5 and used for adhering the transparent substrate 1 and the cover glass 5, where the adhesive layer 4 is specifically a curable adhesive layer, that is, the adhesive layer 4 is a solid structure when in a state with an adhesive effect; the adhesive layer 4 is provided with a conductive layer, and at least one of two side surfaces of the adhesive layer 4 facing the transparent substrate 1 and the cover glass 5 is provided with a conductive layer. In some embodiments, the conductive layer 3 may also be disposed on both the first side and the second side of the adhesive layer 4.
The transparent substrate 1 may be made of polyethylene terephthalate; the transparent substrate 1 may be made of polycarbonate, polyethylene, polyvinyl chloride, polypropylene, polystyrene, polymethyl methacrylate, or glass.
The Adhesive layer 4 may be an Optical Clear Adhesive (OCA), or other curable Adhesive, such as acrylic hydrogel, or jelly glue, or hot melt glue, or a mixture of the above adhesives.
The side of the adhesive layer 4 facing the cover glass 5 is a first side, the side of the adhesive layer 4 facing the transparent substrate 1 is a second side, and at least one of the first side and the second side is provided with a conductive layer 3. For example, referring to fig. 3, a conductive layer 3 may be disposed on the first side, and a touch primitive may be formed on the conductive layer 3 to implement a touch operation.
As an example, the material of the conductive layer 3 may be indium tin oxide, or antimony tin oxide film; the conductive layer 3 may be formed on the side of the adhesive layer 4 by sputtering. In addition, the conductive layer 3 may be formed on the side surface of the adhesive layer 4 by coating, printing, or spraying.
The conductive layer 3 is provided with a touch primitive for realizing capacitive touch. Specifically, the touch-sensing graphic elements can be formed by laser etching, wet etching or etching paste etching.
It should be noted that the sputtering, coating, printing, spraying, laser etching, wet etching, and etching paste mentioned in this embodiment are common methods for producing capacitive touch sensors in related fields, and therefore specific processes and basic principles can refer to documents disclosed in the prior art, such as chinese patent document No. 2012105920190, and thus the detailed description of this embodiment is omitted.
As another example, the conductive layer 3 may also be formed of several enamel wires or copper wires arranged on the adhesive layer 4. Specifically, the method for forming the touch layer by using the enameled wire or the copper wire can refer to documents disclosed in the prior art, such as chinese patent document with application number 2019113517926.
It should be noted that, when the enameled wire or the copper wire is disposed on the side surface of the adhesive layer 4, and the adhesive layer 4 is not connected to the transparent substrate 1/cover glass 5, the enameled wire or the copper wire has a tendency of blocking the side surface of the adhesive layer 4 from contacting with the side surface of the transparent substrate 1/cover glass 5, and only when the adhesive layer 4 is pressed or attached to the transparent substrate 1/cover glass 5, the curable adhesive layer deforms, so that the side surface of the adhesive layer 4 can contact with the side surface of the transparent substrate 1/cover glass 5.
Therefore, as a further optimization of this embodiment, referring to fig. 4, a wire groove 41 may be formed in the adhesive layer 4, and an enameled wire or a copper wire may be arranged in the wire groove 41, so that the enameled wire or the copper wire is located below the side surface of the adhesive layer 4, and the side surface of the enameled wire or the copper wire blocking the adhesive layer 4 is prevented from contacting with the side surface of the transparent substrate 1/the cover glass 5, thereby improving the adhesive strength of the adhesive layer 4 to the transparent substrate 1/the cover glass 5.
The embodiment also provides a touch display device, which comprises a display screen, wherein the display screen is provided with the touch display device, the touch display device comprises a transparent substrate 1, a cover glass 5 and an adhesive layer 4 for connecting the transparent substrate 1 and the cover glass 5, a conductive layer 3 for realizing touch operation is directly formed on the adhesive layer 4, and a base material 2 is not required to be arranged for providing the conductive layer 3 to bear objects, so that the light transmittance of a touch sensor is obviously improved, and images displayed by the touch display device are clearer.
In addition, this embodiment still provides an intelligent blackboard, and this intelligent blackboard is formed by at least one touch-control display device and a clipboard concatenation. For example, the intelligent blackboard can be formed by splicing a touch display device and a writing board, and also can be formed by splicing a touch display device and writing boards positioned on two sides of the touch display device. The touch display device is the touch display device, so that the display definition of a display screen can be improved, and the intelligent blackboard is convenient to use.
The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.
Claims (10)
1. A touch sensor comprising a transparent substrate (1) and a cover glass (5), characterized in that: the transparent substrate is characterized by further comprising an adhesive layer (4) for adhering the transparent substrate (1) and the cover plate glass (5), wherein the adhesive layer (4) is a curable adhesive layer; the adhesive layer (4) is provided with a first side surface facing the cover glass (5) and a second side surface facing the transparent substrate (1), and at least one of the first side surface and the second side surface is provided with a conductive layer (3).
2. The touch sensor of claim 1, wherein: the curable adhesive layer is formed after the OCA colloid is cured.
3. The touch sensor of claim 1, wherein: the curable adhesive layer is acrylic acid hydrogel, or jelly glue, or an adhesive layer formed after the hot melt adhesive is cured.
4. The touch sensor of claim 1, wherein: the conducting layer (3) is formed on the adhesive layer (4) in a coating, printing, sputtering or spraying mode.
5. The touch sensor of claim 4, wherein: touch primitives are arranged on the conducting layer (3) and are formed in a laser etching, wet etching or etching paste etching mode.
6. The touch sensor of claim 1, wherein: the conductive layer (3) is formed by an enameled or copper wire arranged on the adhesive layer (4).
7. The touch sensor of claim 6, wherein: and a wire groove (41) for accommodating the enameled wire or the copper wire is formed in the side surface of the adhesive layer (4).
8. The touch sensor of claim 1, wherein: the transparent substrate (1) is made of any one material of polyethylene terephthalate, polycarbonate, polyethylene, polyvinyl chloride, polypropylene, polystyrene, polymethyl methacrylate and glass.
9. A touch display device, comprising: the touch sensor comprises a display screen, wherein the touch sensor is arranged on the display screen according to any one of claims 1-8.
10. The utility model provides an intelligence blackboard, is formed by at least one touch-control display device and a clipboard concatenation, its characterized in that: the touch display device is the touch display device of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020718914.2U CN211742084U (en) | 2020-04-30 | 2020-04-30 | Touch sensor, touch display equipment and wisdom blackboard |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020718914.2U CN211742084U (en) | 2020-04-30 | 2020-04-30 | Touch sensor, touch display equipment and wisdom blackboard |
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| CN211742084U true CN211742084U (en) | 2020-10-23 |
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| CN202020718914.2U Active CN211742084U (en) | 2020-04-30 | 2020-04-30 | Touch sensor, touch display equipment and wisdom blackboard |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558822A (en) * | 2020-12-14 | 2021-03-26 | 上海中航光电子有限公司 | Touch device, electronic equipment and manufacturing method of touch device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558822A (en) * | 2020-12-14 | 2021-03-26 | 上海中航光电子有限公司 | Touch device, electronic equipment and manufacturing method of touch device |
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