CN213122933U - Touch screen adopting copper foil layer to adhere to film substrate - Google Patents
Touch screen adopting copper foil layer to adhere to film substrate Download PDFInfo
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- CN213122933U CN213122933U CN202021817803.3U CN202021817803U CN213122933U CN 213122933 U CN213122933 U CN 213122933U CN 202021817803 U CN202021817803 U CN 202021817803U CN 213122933 U CN213122933 U CN 213122933U
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Abstract
The invention relates to a touch screen adopting a copper foil layer to laminate a film substrate, which comprises a protective cover plate, a first OCA layer and a liquid crystal display screen, wherein the first OCA layer is tightly bonded on the lower surface of the protective cover plate, and a first conductive substrate, a second OCA layer, a second conductive substrate and a third OCA layer are arranged between the first OCA layer and the liquid crystal display screen; the upper surface of a first copper foil layer in the first conductive substrate is tightly bonded with the first OCA layer, the lower surface of the first copper foil layer is tightly bonded with the first substrate, and the lower surface of the first substrate is tightly bonded with the second OCA layer; the upper surface and the inseparable combination that pastes of second OCA layer in the electrically conductive base plate of second, the lower surface inseparable combination second base plate of second copper foil layer, second base plate lower surface and the inseparable combination that pastes of third OCA layer, and the inseparable combination that pastes of third OCA layer is on liquid crystal display surface. The invention has light weight, small thickness, sensitive reaction and no glass fragmentation risk.
Description
Technical Field
The utility model relates to an adopt touch-control screen of copper foil layer laminating film substrate belongs to touch panel design technical field.
Background
Touch devices are gradually favored by the electronic communication industry due to their advantages of easy operation, good imaging effect, diversified functions, etc., and are widely applied to products such as information system devices, home appliances, communication devices, personal portable devices, etc.
With the rapid rise of touch panels in the communication industry in recent years, touch panels are becoming the first choice of imaging display devices nowadays. The touch panel with the highest utilization rate is mainly a resistance-type touch panel and a touch screen adopting a copper foil layer laminated film substrate, and the touch screen adopting the copper foil layer laminated film substrate has more excellent controllability, usability and surface appearance and becomes the first choice.
The touch panel using the copper foil layer laminated film substrate detects its coordinates from the generated induced electricity by using the capacitance change generated by the electrostatic coupling between the transparent electrode and the human body. The sensing principle uses voltage to act on four corners of the screen sensing area and forms a fixed electric field, when the finger touches the screen, the electric field can induce current, and the controller can measure the current and calculate the contact position according to the different proportion of the current to the four corners.
The traditional process for manufacturing the touch screen by laminating the copper foil layer on the film substrate comprises the following steps: an Indium Tin Oxide (ITO) layer, a metal layer, a protective layer and a printing layer are sequentially arranged on the substrate glass. Because the cost of indium tin oxide is high, indium tin oxide is only mastered in a few day enterprises, and indium tin oxide is expensive, poor in flexibility and easy to break when bent, the sheet resistance of a conductive layer made of indium tin oxide is too high, the requirements of current touch products on resistivity cannot be met, the good conductivity and sufficient sensitivity of a large-size touch screen cannot be guaranteed, and the indium tin oxide can not be applied to the development trend of continuous low-price electronic products.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome exist not enough among the prior art, provide an adopt touch screen of copper foil layer laminating film substrate, it has advantages such as light in weight, thickness are little, the reaction is sensitive to preparation simple process, and do not have the cracked risk of glass.
According to the utility model provides a technical scheme: the utility model provides an adopt touch-control screen of copper foil layer laminating film substrate, includes protection apron, a OCA layer and liquid crystal display, a OCA layer closely pastes combination at protection apron lower surface, its characterized in that: a first conductive substrate, a second OCA layer, a second conductive substrate and a third OCA layer are arranged between the first OCA layer and the liquid crystal display screen; the first conductive substrate comprises a first copper foil layer and a first substrate, wherein the upper surface of the first copper foil layer is tightly bonded with the first OCA layer, the lower surface of the first copper foil layer is tightly bonded with the first substrate, and the lower surface of the first substrate is tightly bonded with the second OCA layer; the second electric conductivity base plate includes second copper foil layer and second base plate, the upper surface and the second OCA layer on second copper foil layer closely paste the combination, and the lower surface on second copper foil layer closely combines the second base plate, second base plate lower surface closely pastes the combination with third OCA layer, and third OCA layer closely pastes the combination and is in liquid crystal display is on the surface.
As a further improvement of the present invention, the first copper foil layer and the first substrate are closely adhered and bonded by a first adhesive layer.
As a further improvement of the utility model, closely paste the combination through the second bond line between second copper foil layer and the second base plate.
As a further improvement of the utility model, the material of the first bonding layer and the second bonding layer is OCA or LOCA.
As a further improvement of the utility model, the thickness of first bond line, second bond line is 50 ~ 200 mm.
As a further improvement of the utility model, the protective cover plate is a PET film, a PMMA film, a PC film, a transparent dry film, an optical resin film or a reinforced hardened PET film.
As a further improvement, the thickness of the protective cover plate is 0.1-8 mm, and the light transmittance is more than or equal to 80%.
As a further improvement of the present invention, the first substrate is a PET film, a PMMA film, a PC film, a transparent dry film, an optical resin film, a solid optical cement film, a liquid optical cement film or a reinforced hardened PET film.
As a further improvement of the present invention, the second substrate is a PET film, a PMMA film, a PC film, a transparent dry film, an optical resin film, a solid optical cement film, a liquid optical cement film or a reinforced hardened PET film.
As a further improvement, the thickness of the first copper foil layer and the second copper foil layer is 0.3-3 um.
As a further improvement, the thickness of the first substrate and the second substrate is 50-200 um, and the light transmittance is not less than 80%.
Compared with the prior art, the utility model, following beneficial technological effect has:
1) the utility model provides a conductive substrate is pasted by the direct pressfitting of frivolous copper foil layer and film substrate and is made, and copper foil layer self thickness is little for the touch screen has advantages such as light in weight, thickness are little, the reaction is sensitive, and the preparation technology degree of difficulty that the pressfitting was pasted is little, the cost is low, and the preparation yields is high.
2) The utility model provides a first copper foil layer and second copper foil layer are used for setting up electric capacity electrode and sensor circuit, and it is able to bear or endure to buckle the performance well, can be used to the relatively great curved surface screen of camber.
3) The utility model provides a protection apron adopts non-glass material, can prevent to appear the cracked risk of glass, improves the security of using.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Description of reference numerals: the display panel comprises a 1-protective cover plate, a 2-first OCA layer, a 3-first conductive substrate, a 3.1-first copper foil layer, a 3.2-first adhesive layer, a 3.3-first substrate, a 4-second OCA layer, a 5-second conductive substrate, a 5.1-second copper foil layer, a 5.2-second adhesive layer, a 5.3-second substrate, a 6-third OCA layer and a 7-liquid crystal display screen.
Detailed Description
The invention is further described with reference to the following specific drawings and examples.
In the description of the present invention, it should be emphasized that the terms "upper surface", "lower surface", "between", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and such expressions are merely for the purpose of simplifying and visualizing the description, and do not mean that the components mentioned must have specific orientations or positional relationships.
As shown in fig. 1, the embodiment discloses a touch panel using a copper foil layer to laminate a film substrate, which mainly comprises a protective cover plate (1), a first OCA layer (2), a first conductive substrate (3), a second OCA layer (4), a second conductive substrate (5), a third OCA layer (6), a liquid crystal display (7), and the like.
As shown in fig. 1, the protective cover plate (1) is located on the outermost layer of the entire touch screen, and the protective cover plate (1) preferably employs a PET (polyethylene terephthalate) film, a PMMA (polymethyl methacrylate) film, a PC (polycarbonate) film, a transparent dry film, an HC TAC (triacetylcellulose) film, or a 9H HC PET film, so that the risk of glass fracture can be prevented, and the safety of use can be improved. Because the light transmittance of the protective cover plate (1) is greatly related to the thickness of the protective cover plate, under the condition of the same material, the thinner the protective cover plate (1), the higher the light transmittance, and vice versa. The utility model discloses a plurality of performances of intensity, flexibility and transmittance have been considered comprehensively, so set up the thickness of protection apron (1) to 0.1 ~ 8mm, the luminousness is greater than or equal to 80%.
As shown in fig. 1, the first OCA layer (2) is closely bonded to the lower surface of the protective cover plate (1), a first conductive substrate (3), a second OCA layer (4), a second conductive substrate (5) and a third OCA layer (6) are sequentially arranged below the first OCA layer (2), the first conductive substrate (3) includes a first copper foil layer (3.1) and a first substrate (3.3), the upper surface of the first copper foil layer (3.1) is closely bonded to the first OCA layer (2), the lower surface of the first copper foil layer (3.1) is closely bonded to the first substrate (3.3), and the lower surface of the first substrate (3.3) is closely bonded to the second OCA layer (4); second electrically conductive base plate (5) include second copper foil layer (5.1) and second base plate (5.3), the upper surface and second OCA layer (4) of second copper foil layer (5.1) closely paste the combination, and the lower surface of second copper foil layer (5.1) closely combines second base plate (5.3), second base plate (5.3) lower surface closely pastes the combination with third OCA layer (6), and third OCA layer (6) closely paste the combination and are in liquid crystal display (7) are on the surface.
As shown in fig. 1, in this embodiment, the first copper foil layer (3.1) and the first substrate (3.3) are closely bonded by a first adhesive layer (3.2); the second copper foil layer (5.1) and the second substrate (5.3) are tightly bonded through a second bonding layer (5.2). The manufacturing process of the pressing and pasting has the advantages of small technical difficulty, low manufacturing cost and high manufacturing yield. The materials of the first bonding layer (3.2) and the second bonding layer (5.2) are OCA (solid optical adhesive) or LOCA (liquid optical adhesive).
The utility model discloses in, the material of first base plate (3.3), second base plate (5.3) is for enabling PET film, PMMA film, PC film, transparent dry film, HC TAC film, solid-state optical cement film, liquid optical cement film or 9H HC PET film that visible light sees through.
The utility model discloses in, first OCA layer (2), second OCA layer (4) and third OCA layer (6) play the adhesive action, and its cemented intensity is good, can solidify at room temperature or moderate temperature, and has characteristics such as solidification shrinkage is small, is particularly suitable for as transparent optical element's viscose. In the embodiment, the thickness of the first OCA layer (2) is preferably set to be 25-250um, the thickness of the second OCA layer (4) is preferably set to be 25-250um, and the thickness of the third OCA layer (6) is preferably set to be 25-250 um.
The utility model discloses in, for control panel's total thickness and bending performance, the thickness of first bond line (3.2), second bond line (5.2) is preferred to be set up to 50 ~ 200 um. The thickness of first copper foil layer (3.1), second copper foil layer (5.1) is preferred to be set up to 0.3 ~ 3 um. The thickness of the first substrate (3.3) and the second substrate (5.3) is preferably set to be 50-200 um, and the light transmittance is larger than or equal to 80%.
The above description is only for the preferred embodiment of the present invention, and the above specific embodiments are not intended to limit the present invention. Within the scope of the technical idea of the present invention, various modifications and alterations can be made, and any person skilled in the art can make modifications, amendments or equivalent replacements according to the above description, all belonging to the protection scope of the present invention.
Claims (11)
1. The utility model provides an adopt touch-control screen of copper foil layer laminating film substrate, includes protection apron (1), first OCA layer (2) and liquid crystal display (7), first OCA layer (2) closely paste and combine at protection apron (1) lower surface, its characterized in that: a first conductive substrate (3), a second OCA layer (4), a second conductive substrate (5) and a third OCA layer (6) are arranged between the first OCA layer (2) and the liquid crystal display screen (7); the first conductive substrate (3) comprises a first copper foil layer (3.1) and a first substrate (3.3), wherein the upper surface of the first copper foil layer (3.1) is tightly bonded with the first OCA layer (2), the lower surface of the first copper foil layer (3.1) is tightly bonded with the first substrate (3.3), and the lower surface of the first substrate (3.3) is tightly bonded with the second OCA layer (4); second electrically conductive base plate (5) include second copper foil layer (5.1) and second base plate (5.3), the upper surface and second OCA layer (4) of second copper foil layer (5.1) closely paste the combination, and the lower surface of second copper foil layer (5.1) closely combines second base plate (5.3), second base plate (5.3) lower surface closely pastes the combination with third OCA layer (6), and third OCA layer (6) closely paste the combination and are in liquid crystal display (7) are on the surface.
2. The touch panel using the copper foil layer laminated film substrate according to claim 1, wherein: the first copper foil layer (3.1) and the first substrate (3.3) are tightly bonded through a first bonding layer (3.2).
3. The touch panel using the copper foil layer laminated film substrate according to claim 2, wherein: the second copper foil layer (5.1) and the second substrate (5.3) are tightly bonded through a second bonding layer (5.2).
4. The touch panel using the copper foil layer laminated film substrate according to claim 3, wherein: the materials of the first bonding layer (3.2) and the second bonding layer (5.2) are OCA or LOCA.
5. The touch panel using the copper foil layer laminated film substrate according to claim 3, wherein: the thickness of first bond coat (3.2), second bond coat (5.2) is 50 ~ 200 um.
6. The touch panel using the copper foil layer laminated film substrate according to claim 1, wherein: the protective cover plate (1) is a PET film, a PMMA film, a PC film, a transparent dry film, an optical resin film or a reinforced hardened PET film.
7. The touch panel using the copper foil layer laminated film substrate according to any one of claims 1 to 6, wherein: the thickness of the protective cover plate (1) is 0.1-8 mm, and the light transmittance is more than or equal to 80%.
8. The touch panel using the copper foil layer laminated film substrate according to any one of claims 1 to 6, wherein: the first substrate (3.3) is a PET film, a PMMA film, a PC film, a transparent dry film, an optical resin film, a solid optical adhesive film, a liquid optical adhesive film or a reinforced hardened PET film.
9. The touch panel using the copper foil layer laminated film substrate according to any one of claims 1 to 6, wherein: the second substrate (5.3) is a PET film, a PMMA film, a PC film, a transparent dry film, an optical resin film, a solid optical adhesive film, a liquid optical adhesive film or a reinforced hardened PET film.
10. The touch panel using the copper foil layer laminated film substrate according to any one of claims 1 to 6, wherein: the thickness of first copper foil layer (3.1), second copper foil layer (5.1) is 0.3 ~ 3 um.
11. The touch panel using the copper foil layer laminated film substrate according to any one of claims 1 to 6, wherein: the thickness of the first substrate (3.3) and the second substrate (5.3) is 50-200 um, and the light transmittance is larger than or equal to 80%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021817803.3U CN213122933U (en) | 2020-08-26 | 2020-08-26 | Touch screen adopting copper foil layer to adhere to film substrate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021817803.3U CN213122933U (en) | 2020-08-26 | 2020-08-26 | Touch screen adopting copper foil layer to adhere to film substrate |
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| CN213122933U true CN213122933U (en) | 2021-05-04 |
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| CN202021817803.3U Active CN213122933U (en) | 2020-08-26 | 2020-08-26 | Touch screen adopting copper foil layer to adhere to film substrate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114020171A (en) * | 2021-11-05 | 2022-02-08 | 深圳市志凌伟业光电有限公司 | Manufacturing method of metal sensing electrode structure, touch display device and mobile terminal |
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- 2020-08-26 CN CN202021817803.3U patent/CN213122933U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114020171A (en) * | 2021-11-05 | 2022-02-08 | 深圳市志凌伟业光电有限公司 | Manufacturing method of metal sensing electrode structure, touch display device and mobile terminal |
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