CN212723964U - Touch panel and display device - Google Patents
Touch panel and display device Download PDFInfo
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- CN212723964U CN212723964U CN202021689679.7U CN202021689679U CN212723964U CN 212723964 U CN212723964 U CN 212723964U CN 202021689679 U CN202021689679 U CN 202021689679U CN 212723964 U CN212723964 U CN 212723964U
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Abstract
The embodiment of the application discloses a touch panel and a display device, wherein the touch panel comprises a first PET substrate layer; the first ultraviolet blocking transparent adhesive layer is arranged on one side of the first PET substrate layer in a laminated mode; the second PET substrate layer is stacked on one side, away from the first PET substrate layer, of the first ultraviolet blocking transparent adhesive layer; and the first transparent conductive film layer is stacked on one side of the second PET substrate layer, which is deviated from the first ultraviolet blocking transparent adhesive layer. This application utilizes the characteristics that a large amount of benzene rings that exist can absorb ultraviolet energy through the resonance effect in the PET, sets up the substrate layer into the PET substrate layer to can absorb ultraviolet ray, avoid ultraviolet ray to get into inside display device. Through set up two PET substrate layers in touch panel, can be better block in the ultraviolet ray gets into display device, and then extension display device's life.
Description
Technical Field
The application relates to the technical field of touch equipment, in particular to a touch panel and a display device.
Background
With the rapid improvement of the research level, the market competition of the display device is more and more intense. In the related art, when the display device is under a high temperature condition with a long illumination time, the inner adhesive layer is easily degraded by ultraviolet rays, which affects the service life of the display device.
SUMMERY OF THE UTILITY MODEL
The embodiment of the application provides a touch panel and display device, utilizes the characteristics that a large amount of benzene rings that exist in PET can absorb ultraviolet energy through resonance effect, sets up the substrate layer into the PET substrate layer to can absorb ultraviolet ray, avoid ultraviolet ray to get into inside the display device. Through set up two PET substrate layers in touch panel, can be better block ultraviolet ray and get into display device in, prolong display device's life. The technical scheme is as follows;
in a first aspect, an embodiment of the present application provides a touch panel, including:
a first PET substrate layer;
the first ultraviolet blocking transparent adhesive layer is arranged on one side of the first PET substrate layer in a laminated mode;
the second PET substrate layer is stacked on one side, away from the first PET substrate layer, of the first ultraviolet blocking transparent adhesive layer; and
the first transparent conductive film layer is stacked on one side, away from the first ultraviolet blocking transparent adhesive layer, of the second PET base material layer.
Based on this application embodiment's touch panel, the characteristic that the benzene ring that utilizes a large amount of existences can absorb ultraviolet energy through resonance effect in the PET sets up the substrate layer into the PET substrate layer to can absorb the ultraviolet ray, avoid the ultraviolet ray to get into inside display device. Through set up two PET substrate layers in touch panel, can be better block in the ultraviolet ray gets into display device, and then extension display device's life. Through set up the ultraviolet barrier transparent adhesive tape layer between first PET substrate layer and second PET substrate layer, the ultraviolet blocks that transparent adhesive tape can be further plays the effect of blockking to the ultraviolet ray, and the display device of this application embodiment possesses the excellent effect that blocks ultraviolet ray.
In some of these embodiments, further comprising:
and the first bottom coating is arranged between the second PET base material layer and the first transparent conductive film layer in a laminated mode.
Based on the above embodiment, the first undercoat layer can make the wiring pattern of the first transparent conductive film layer less visible by adjustment of the refractive index or color tone, ensuring the aesthetic appearance of the product.
In some of these embodiments, further comprising:
and the second transparent conductive film layer is stacked on one side of the first PET substrate layer, which is deviated from the first ultraviolet blocking transparent adhesive layer.
Based on the above embodiment, by providing two transparent conductive film layers, the sensitivity of the touch panel can be improved.
In some of these embodiments, further comprising:
and the second bottom coating is arranged between the first PET base material layer and the second transparent conductive film layer in a laminated mode.
Based on the above embodiment, the second primer layer can make the wiring pattern of the second transparent conductive film layer not easily seen through adjustment of the refractive index or the color tone, thereby ensuring the beauty of the product.
In some of these embodiments, further comprising:
and the hardening layer is stacked on one side of the first PET base material layer departing from the first ultraviolet blocking transparent adhesive layer.
Based on the embodiment, the hardening layer can enhance the hardness of the touch panel and reduce or even avoid the abrasion of the touch panel when the touch panel is in contact with other devices.
In some embodiments, the first transparent conductive film layer is made of indium tin oxide.
According to the above embodiments, indium tin oxide has excellent conductivity and transparency, and can cut off electron radiation, ultraviolet rays, and far infrared rays harmful to the human body, and the touch panel can cut off electron radiation, ultraviolet rays, and far infrared rays harmful to the human body while enhancing conductivity and transparency.
In some of these embodiments, the materials from which the first and second PET substrate layers are made include triethyl phosphonoacetate.
Based on the embodiment, the triethyl phosphonoacetate stabilizer is added into the preparation materials of the first PET substrate layer and the second PET substrate layer, so that the high-temperature reaction time can be shortened, the reaction temperature can be reduced, the generation and precipitation of degradation products of PET in thermal degradation can be fundamentally inhibited, and the light transmittance of the touch panel can be improved.
In a second aspect, an embodiment of the present application provides a display device, including:
a display panel; and
in any of the touch panels described above, the touch panel is stacked on the visible side of the display panel.
Based on display device in this application embodiment, utilize the characteristics that the benzene ring that exists in a large number in the PET can absorb ultraviolet energy through the resonance effect, set up the substrate layer into the PET substrate layer to can absorb the ultraviolet ray, avoid ultraviolet ray to get into inside the display device. Through set up two PET substrate layers in touch panel, can be better block in the ultraviolet ray gets into display device, and then extension display device's life. Through set up the ultraviolet barrier transparent adhesive tape layer between first PET substrate layer and second PET substrate layer, the ultraviolet blocks that transparent adhesive tape can be further plays the effect of blockking to the ultraviolet ray, and the display device of this application embodiment possesses the excellent effect that blocks ultraviolet ray.
In some of these embodiments, further comprising:
the light-transmitting substrate is arranged on one side, far away from the display panel, of the touch panel in a laminated mode; and
and the second ultraviolet blocking transparent adhesive layer is arranged between the touch panel and the light-transmitting substrate in a laminating manner.
Based on the embodiment, ultraviolet rays can be further blocked through the second ultraviolet-blocking transparent adhesive layer between the light-transmitting substrate and the touch panel, so that the service life of the display device is prolonged.
In some of these embodiments, the transparent substrate is made of glass.
Based on the embodiment, the preparation material of the light-transmitting substrate is glass, so that the hand feeling and the excellent light-transmitting performance of the display device can be guaranteed.
Based on touch panel and display device of this application embodiment, utilize the characteristics that the benzene ring that exists in a large number can absorb ultraviolet energy through resonance effect in the PET, set up the substrate layer into the PET substrate layer to can absorb the ultraviolet ray, avoid ultraviolet ray to get into inside the display device. Through set up two PET substrate layers in touch panel, can be better block in the ultraviolet ray gets into display device, and then extension display device's life. Through set up the ultraviolet barrier transparent adhesive tape layer between first PET substrate layer and second PET substrate layer, the ultraviolet blocks that transparent adhesive tape can be further plays the effect of blockking to the ultraviolet ray, and the display device of this application embodiment possesses the excellent effect that blocks ultraviolet ray.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a first structure of a touch panel provided in an embodiment of the present application;
fig. 2 is a schematic diagram of a second structure of a touch panel provided in the embodiment of the present application;
fig. 3 is a schematic diagram of a third structure of a touch panel provided in the embodiment of the present application;
fig. 4 is a schematic diagram of a fourth structure of a touch panel provided in the embodiment of the present application;
fig. 5 is a schematic diagram of a fifth structure of a touch panel provided in the embodiment of the present application;
fig. 6 is a schematic view of a first structure of a display device according to an embodiment of the present application;
fig. 7 is a schematic diagram of a second structure of a display device according to an embodiment of the present application;
fig. 8 is a graph illustrating transmittance of different wavelengths of light for ultraviolet blocking transparent adhesives and common optical transparent adhesives used in a touch panel according to an embodiment of the present disclosure; in the figure, the abscissa represents wavelength, and the ordinate represents transmittance;
FIG. 9 is a graph showing transmittance of different wavelengths of light for a touch panel and a common touch panel according to an embodiment of the present invention; in the figure, the abscissa represents the wavelength and the ordinate represents the transmittance.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
With the rapid improvement of the research level, the market competition of the display device is more and more intense. In the related art, when the display device is under a high temperature condition with a long illumination time, the inner adhesive layer is easily degraded by ultraviolet rays, which affects the service life of the display device.
The energy of light in sunlight varies with wavelength, and the shorter the wavelength, the greater the energy. Specific wavelength-light energy relationships are shown in the following table.
| Wavelength (nm) | 200 | 290 | 300 | 340 | 350 | 400 | 500 | 600 | 700 |
| Light energy (KJ/mol) | 600 | 418 | 397 | 352 | 340 | 297 | 239 | 197 | 170 |
As can be seen from the above table, the light energy of short-wavelength ultraviolet rays, such as 300nm ultraviolet rays, is as high as 397KJ/mol, while the bond energy of high polymer molecule bonding is mostly in the range of 250KJ/mol to 500KJ/mol, so that even if the distribution of ultraviolet rays in sunlight is small, the destructiveness to high polymer molecules is large because the light energy of ultraviolet rays is large. Based on this, the present application provides a touch panel and a display device, aiming to solve the above-mentioned drawbacks.
In a first aspect, an embodiment of the present application provides a touch panel 100. Referring to fig. 1, the touch panel 100 includes a first PET substrate layer 110, a first ultraviolet blocking transparent adhesive layer 120, a second PET substrate layer 130, and a first transparent conductive film layer 140. The first ultraviolet blocking transparent adhesive layer 120 is stacked on one side of the first PET substrate layer 110. The second PET substrate layer 130 is stacked on the side of the first uv-blocking transparent adhesive layer 120 away from the first PET substrate layer 110. The first transparent conductive film layer 140 is stacked on the second PET substrate layer 130 at a side away from the first ultraviolet blocking transparent adhesive layer 120.
Based on touch panel 100 of this application embodiment, utilize the characteristics that the benzene ring that exists in a large number in the PET can absorb ultraviolet energy through the resonance effect, set up the substrate layer into the PET substrate layer to can absorb the ultraviolet ray, avoid the ultraviolet ray to get into inside display device 10. By providing two PET substrate layers in the touch panel 100, ultraviolet rays can be better blocked from entering the display device 10, and the service life of the display device 10 is further prolonged. The first ultraviolet blocking transparent adhesive layer 120 can further block ultraviolet rays. Referring to fig. 8, the transmittance of the common optical transparent adhesive to light with a wavelength of 300nm can reach 67%, and the ultraviolet blocking transparent adhesive can cut off all light with a wavelength of 380nm or less, and has a better ultraviolet blocking effect. Referring to fig. 9, the touch panel 100 of the embodiment of the present disclosure can cut off all light with a wavelength below 380nm, and has a good ultraviolet light blocking effect and a longer service life.
Referring to fig. 2, the touch panel 100 may further include a first primer layer 150. The first primer layer 150 may be stacked between the second PET substrate layer 130 and the first transparent conductive film layer 140. The first primer layer 150 can make the wiring pattern of the first transparent conductive film layer 140 not easily seen by adjusting the refractive index or the color tone, ensuring the beauty of the product.
The first primer layer 150 may use a silicon-containing organic hard coating agent. A high refractive material of an inorganic compound for adjusting a refractive index may be added to the first primer layer 150. The adjustment of the refractive index of the first undercoat layer 150 can be achieved by adjusting the content of the high-refractive-index material in the first undercoat layer 150.
Referring to fig. 3, the touch panel 100 may further include a hardening layer 160. The hardening layer 160 may be stacked on a side of the first PET substrate layer 110 facing away from the first uv-blocking transparent adhesive layer 120. The stiffening layer 160 can increase the stiffness of the touch panel 100, reducing or even avoiding wear of the touch panel 100 when in contact with other devices.
When the touch panel 100 includes the first PET substrate layer 110, the first ultraviolet blocking transparent adhesive layer 120, the second PET substrate layer 130, the first transparent conductive film layer 140, the first primer layer 150, and the hardening layer 160, referring to fig. 3, the arrangement order among the film layers may be that the hardening layer 160, the first PET substrate layer 110, the first ultraviolet blocking transparent adhesive layer 120, the second PET substrate layer 130, the first primer layer 150, and the first transparent conductive film layer 140 are sequentially stacked.
In order to improve the sensitivity of the touch panel 100, the touch panel 100 may further include a second transparent conductive film layer 170, referring to fig. 4, in addition to the first transparent conductive film layer 140. The second transparent conductive film layer 170 may be stacked on the side of the first PET substrate layer 110 facing away from the first uv-blocking transparent adhesive layer 120.
In order to make the wiring pattern of the second transparent conductive film layer 170 not easily visible and to ensure the aesthetic appearance of the product, the touch panel 100 may further include a second primer layer 180, see fig. 5. The second primer layer 180 may be stacked between the first PET substrate layer 110 and the second transparent conductive film layer 170. The second primer layer 180 can make the wiring pattern of the second transparent conductive film layer 170 less visible by adjusting the refractive index or color tone, and can ensure the beauty of the product.
The second primer layer 180 may use a silicon-containing organic-based hard coating agent. A high refractive material of an inorganic compound for adjusting a refractive index may be added to the second primer layer 180. The adjustment of the refractive index of the second undercoat layer 180 can be achieved by adjusting the content of the high refractive index material in the second undercoat layer 180.
When the touch panel 100 includes the first PET substrate layer 110, the first ultraviolet blocking transparent adhesive layer 120, the second PET substrate layer 130, the first transparent conductive film layer 140, the first primer layer 150, the second transparent conductive film layer 170, and the second primer layer 180, referring to fig. 5, the arrangement order among the film layers may be that the second transparent conductive film layer 170, the second primer layer 180, the first PET substrate layer 110, the first ultraviolet blocking transparent adhesive layer 120, the second PET substrate layer 130, the first primer layer 150, and the first transparent conductive film layer 140 are sequentially stacked.
Since PET causes oligomers to be precipitated on the surface when heated, the touch panel 100 further includes an oligomer precipitation layer. The presence of the oligomer increases the haze of the touch panel 100, and thus becomes less transparent. To solve this defect, a stabilizer may be added to the preparation materials of the first PET substrate layer 110 and the second PET substrate layer 130 to shorten the high-temperature reaction time and lower the reaction temperature, thereby fundamentally inhibiting the generation and precipitation of degradation products in thermal degradation. The stabilizer may be triethyl phosphonoacetate.
The material for preparing the first transparent conductive film layer 140 may be any conductive material. For example, the first transparent conductive film layer 140 may be made of indium tin oxide, silver nanowires, copper, carbon nanotubes, graphene, or the like. Since indium tin oxide has excellent conductivity and transparency and can cut off electron radiation, ultraviolet rays, and far infrared rays harmful to the human body, in order to enhance the conductivity and transparency of the touch panel 100 and cut off electron radiation, ultraviolet rays, and far infrared rays harmful to the human body, indium tin oxide is preferably used as a material for preparing the first transparent conductive film layer 140. Similarly, the material for preparing the second transparent conductive film layer 170 may be any conductive material. For example, the second transparent conductive film layer 170 may be made of indium tin oxide, silver nanowires, copper, carbon nanotubes, graphene, or the like.
In a second aspect, embodiments of the present application provide a display device 10. Referring to fig. 6, the display device 10 may include the display panel 200 and any of the touch panels 100 described above. The touch panel 100 is stacked on the visible side of the display panel 200.
Based on display device 10 in the embodiment of the application, utilize the characteristics that the benzene ring that exists in a large number in PET can absorb ultraviolet energy through the resonance effect, set up the substrate layer into the PET substrate layer to can absorb the ultraviolet ray, avoid the ultraviolet ray to get into inside display device 10. By providing two PET substrate layers in the touch panel 100, ultraviolet rays can be better blocked from entering the display device 10, and the service life of the display device 10 is further prolonged.
Referring to fig. 7, the display device 10 may further include a light-transmitting substrate 300 and a second ultraviolet-blocking transparent adhesive layer 400. The light-transmitting substrate 300 may be stacked on a side of the touch panel 100 away from the display panel 200. The second ultraviolet-blocking transparent adhesive layer 400 may be stacked between the touch panel 100 and the light-transmitting substrate 300. The second ultraviolet blocking transparent adhesive layer 400 can further block ultraviolet rays, thereby extending the lifespan of the display device 10.
The material for preparing the light-transmitting substrate 300 may be any light-transmitting material. For example, the light-transmitting substrate 300 may be made of plastic, glass, or the like. Of course, in order to ensure the hand feeling and the light transmission performance of the light-transmitting substrate 300, the material for preparing the light-transmitting substrate 300 is preferably glass.
Based on touch panel 100 and display device 10 of this application embodiment, utilize the characteristics that the benzene ring that exists in a large number in the PET can absorb ultraviolet energy through resonance effect, set up the substrate layer into the PET substrate layer to can absorb the ultraviolet ray, avoid the ultraviolet ray to get into inside display device 10. By providing two PET substrate layers in the touch panel 100, ultraviolet rays can be better blocked from entering the display device 10, and the service life of the display device 10 is further prolonged. Through set up the ultraviolet barrier transparent adhesive layer between first PET substrate layer 110 and second PET substrate layer 130, the ultraviolet barrier transparent adhesive layer can be further play the effect of blockking the ultraviolet ray, and the display device 10 of this application embodiment possesses the excellent effect of blockking the ultraviolet ray.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. Further, in the description of the present application, "a plurality" means two or more unless otherwise specified. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present application and is not to be construed as limiting the scope of the present application, so that the present application is not limited thereto, and all equivalent variations and modifications can be made to the present application.
Claims (10)
1. A touch panel characterized by comprising:
a first PET substrate layer;
the first ultraviolet blocking transparent adhesive layer is arranged on one side of the first PET base material layer in a laminated mode;
the second PET base material layer is stacked on one side, away from the first PET base material layer, of the first ultraviolet blocking transparent adhesive layer; and
and the first transparent conductive film layer is stacked on one side of the second PET substrate layer, which deviates from the first ultraviolet blocking transparent adhesive layer.
2. The touch panel of claim 1, further comprising:
and the first bottom coating layer is arranged between the second PET base material layer and the first transparent conductive film layer in a laminated mode.
3. The touch panel of claim 1, further comprising:
and the second transparent conductive film layer is stacked on one side of the first PET substrate layer, which deviates from the first ultraviolet blocking transparent adhesive layer.
4. The touch panel of claim 3, further comprising:
and the second bottom coating layer is arranged between the first PET base material layer and the second transparent conductive film layer in a laminated mode.
5. The touch panel of claim 1, further comprising:
and the hardening layer is stacked on the first PET substrate layer and deviates from one side of the first ultraviolet blocking transparent adhesive layer.
6. The touch panel of claim 1, wherein the first transparent conductive film layer is made of indium tin oxide.
7. The touch panel of claim 1, wherein the materials from which the first PET substrate layer and the second PET substrate layer are made each include triethyl phosphonoacetate.
8. A display device, comprising:
a display panel; and
the touch panel of any one of claims 1 to 7, which is disposed on a viewable side of the display panel in a stack.
9. The display device of claim 8, further comprising:
the light-transmitting substrate is arranged on one side, far away from the display panel, of the touch panel in a laminated mode; and
and the second ultraviolet blocking transparent adhesive layer is arranged between the touch panel and the light-transmitting substrate in a laminated manner.
10. The display device according to claim 9, wherein the light-transmitting substrate is made of glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021689679.7U CN212723964U (en) | 2020-08-13 | 2020-08-13 | Touch panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021689679.7U CN212723964U (en) | 2020-08-13 | 2020-08-13 | Touch panel and display device |
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| Publication Number | Publication Date |
|---|---|
| CN212723964U true CN212723964U (en) | 2021-03-16 |
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| CN202021689679.7U Active CN212723964U (en) | 2020-08-13 | 2020-08-13 | Touch panel and display device |
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| CN (1) | CN212723964U (en) |
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- 2020-08-13 CN CN202021689679.7U patent/CN212723964U/en active Active
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