CN220872973U - Composite cover plate and touch display module comprising same - Google Patents
Composite cover plate and touch display module comprising same Download PDFInfo
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- CN220872973U CN220872973U CN202321355197.1U CN202321355197U CN220872973U CN 220872973 U CN220872973 U CN 220872973U CN 202321355197 U CN202321355197 U CN 202321355197U CN 220872973 U CN220872973 U CN 220872973U
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- cover plate
- composite
- pmma
- layer
- hard coating
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- 239000002131 composite material Substances 0.000 title claims abstract description 52
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims abstract description 32
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 32
- 239000011248 coating agent Substances 0.000 claims abstract description 14
- 238000000576 coating method Methods 0.000 claims abstract description 14
- 238000002834 transmittance Methods 0.000 claims abstract description 7
- 230000010287 polarization Effects 0.000 claims abstract description 6
- 230000003666 anti-fingerprint Effects 0.000 claims abstract description 5
- 230000003749 cleanliness Effects 0.000 claims abstract description 4
- 239000010410 layer Substances 0.000 claims description 50
- 239000011247 coating layer Substances 0.000 claims description 8
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000002994 raw material Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
Landscapes
- Polarising Elements (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model relates to a composite cover plate and a touch display module comprising the same, wherein the composite cover plate comprises a PMMA/PC composite plate, a first hard coating is arranged on the PMMA/PC composite plate, a polarizing layer and a second hard coating are arranged below the PMMA/PC composite plate, the polarizing layer is a coated polarizing layer, the polarization degree of the polarizing layer is more than 90%, and the transmittance is more than 40%. The thickness of the polarizing layer is 4-5 μm. The first hard coating is also provided with an anti-fingerprint layer, so that fingerprints and various stains can be prevented from adhering, and the cleanliness of the cover plate is improved. The AR film layer is further arranged on the first hard coating, and reflection of light of the cover plate can be reduced. The utility model provides a novel composite cover plate, which integrates a polarizing function, and when the novel composite cover plate is applied to a touch display module, the process of attaching a polaroid to the touch display module can be omitted, so that the production efficiency is improved, more importantly, the module can be lighter and thinner, and the current market demand is met.
Description
Technical Field
The utility model relates to the technical field of cover plates, in particular to a composite cover plate and a touch display module comprising the same.
Background
The PMMA/PC composite board is an optical-grade board and has a transparent glass-like effect. It is made by co-extrusion of PMMA and PC (as distinguished from plastic alloys), comprising a PMMA layer and a PC layer. The surface hardness of the PC sheet can reach the surface hardness of the acrylic after being hardened, has the toughness of the PC sheet, can resist strong impact, and is very suitable for being used as a cover plate of a touch screen and a display module. Under the trend that the whole touch display module is required to be lighter and thinner, the composite board can integrate more functions and is more favored by the market.
Disclosure of utility model
The utility model provides a composite cover plate and a touch display module comprising the same, wherein the composite cover plate integrates the function of polarized light, and can meet the demand of pursuing lighter and thinner in the current market when applied to the touch display module.
Specifically, the technical scheme of the utility model is as follows:
On one hand, a composite cover plate is provided, which comprises a PMMA/PC composite plate, wherein a first hard coating is arranged on the PMMA/PC composite plate, a polarizing layer and a second hard coating are arranged below the PMMA/PC composite plate, the polarizing layer is a coated polarizing layer, the polarization degree of the polarizing layer is more than 90%, and the transmittance is more than 40%.
Preferably, the thickness of the polarizing layer is 4 to 5 μm.
As the preferable technical scheme, the first hard coating is also provided with an anti-fingerprint layer, so that fingerprints and various stains can be prevented from adhering, and the cleanliness of the cover plate is improved.
As the preferable technical scheme, the AR film layer is further arranged on the first hard coating, and reflection of the cover plate can be reduced.
As a preferable technical scheme, the PMMA/PC composite board is a film layer prepared by co-extrusion of PMMA and PC particle raw materials, wherein the thickness ratio of the PMMA film layer to the PC film layer is 1:9.
As a preferable technical scheme, the thickness of the PMMA/PC composite board is 0.05-2.0mm.
As a preferred technical scheme, the thickness of the PMMA/PC composite board is 1.0mm.
As a preferable technical scheme, the light transmittance of the second hard coating is more than 90%, and the haze is less than 0.9%.
As the preferable technical scheme, the thickness of the second hard coating is 0.003-0.05mm, and the friction damage of the external environment to the polarizing layer can be effectively isolated.
On the other hand, a touch display module is provided, which comprises the composite cover plate, the touch Sensor, the optical cement, the display module, the lower polarizer and the backlight module.
Compared with the prior art, the utility model has the following technical effects: the utility model provides a novel composite cover plate, which integrates a polarizing function, and when the novel composite cover plate is applied to a touch display module, the process of attaching a polaroid to the touch display module can be omitted, so that the production efficiency is improved, more importantly, the module can be lighter and thinner, and the current market demand is met.
Description of the drawings:
fig. 1 is a schematic diagram of a stacking structure of a composite cover plate according to an embodiment of the present utility model;
FIG. 2 is a schematic diagram of a stacking structure of a composite cover plate according to an embodiment of the present utility model;
fig. 3 is a schematic structural diagram of a touch display module according to an embodiment of the present utility model;
Reference numerals illustrate:
A composite cover plate 1; PMMA/PC composite plate 11; a PMMA film layer 111; a PC film layer 112; a first hard coat layer 12; a polarizing layer 13; a second hard coat layer 14; an anti-fingerprint layer 15; touch Sensor2; an optical adhesive 3; a display module 4; a lower polarizer 5; and a backlight module 6.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to specific embodiments of the present utility model and corresponding drawings. In the description of the present utility model, it should be noted that the term "or" is generally employed in its sense including "and/or" unless the content clearly dictates otherwise.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art. In addition, in the description of the present utility model, the terms "first," "second," "upper," "lower," and the like are used merely to distinguish between descriptions and are not to be construed as indicating or implying relative importance.
Example 1
As shown in fig. 1, a schematic stacking structure of a composite cover plate 1 according to this embodiment is provided, where the composite cover plate 1 includes a PMMA/PC composite plate 11, a first hard coating layer 12 is disposed on the PMMA/PC composite plate 11, and a polarizing layer 13 and a second hard coating layer 14 are disposed under the PMMA/PC composite plate 11. The polarizing layer 13 is a coating type polarizing layer 13, and the principle of the coating type polarizing layer 13 is to arrange and cure anisotropic absorbing dye molecules. The arrangement of dye molecules can be realized by utilizing a photoalignment technology, and then utilizing the rotation effect of photoinduced molecules, so that the molecules rotate to be vertical to the polarization direction. After the polarizing layer 13 is formed, a HardCoating material is sprayed on the surface, and the second hard coat layer 14 is formed by hardening treatment. The second hard coating layer 14 can effectively isolate the friction damage of the external environment polarizing layer 13. The composite cover plate 1 integrates the function of polarization, and can be applied to a touch display module 4 and other display modules 4.
Preferably, the polarizing layer 13 has a polarization degree of more than 90% and a transmittance of more than 40%. Further, the thickness of the polarizing layer 13 is 4 to 5. Mu.m.
Preferably, as shown in fig. 2, an anti-fingerprint layer 15 may be further disposed on the first hard coating layer 12, so as to prevent adhesion of fingerprints and various stains and improve the cleanliness of the cover plate.
In some preferred embodiments, an AR film layer may be further provided on the first hard coat layer 12, which can reduce reflection of light from the cover plate.
Preferably, the PMMA/PC composite plate 11 is a film layer prepared by co-extrusion of PMMA and PC particle materials, wherein the thickness ratio of the PMMA film layer 111 to the PC film layer 112 is 1:9. Further, the PMMA/PC composite plate 11 has a thickness of 0.05 to 2.0mm. In some preferred embodiments, the PMMA/PC composite plate 11 has a thickness of 1.0mm.
Preferably, the second hard coat layer 14 has a light transmittance of more than 90% and a haze of less than 0.9%.
Preferably, the thickness of the second hard coating layer 14 is 0.003-0.05mm, so that the friction damage of the external environment to the polarizing layer 13 can be effectively isolated.
Example 2
As shown in fig. 3, a structure of a touch display module 4 according to the present embodiment is provided; the technical features already included in the above embodiment are naturally relayed in the present embodiment. The touch display module 4 comprises a composite cover plate 1, a touch Sensor2, an optical adhesive 3, a display module 4, a lower polarizer 5 and a backlight module 6. Compare traditional touch-control display module assembly 4 structure, assembled polarizing layer 13 in the compound apron 1 that this display module assembly 4 included, this polarizing layer 13 can replace the last polaroid that needs to laminate in the display module assembly 4, has cancelled this process of laminating display module assembly 4 upper polaroid and has alleviateed the weight of whole touch-control display module assembly 4, and overall structure is more simplified, and the manufacturing flow is shorter.
It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Claims (8)
1. The composite cover plate is characterized by comprising a PMMA/PC composite plate, wherein a first hard coating is arranged on the PMMA/PC composite plate, and a polarizing layer and a second hard coating are arranged below the PMMA/PC composite plate, wherein the polarizing layer is a coated polarizing layer, the polarization degree of the polarizing layer is more than 90%, and the transmittance is more than 40%; the thickness of the polarizing layer is 4-5 mu m; the PMMA/PC composite board is a film layer prepared by co-extrusion of PMMA and PC particle raw materials, wherein the thickness ratio of the PMMA film layer to the PC film layer is 1:9.
2. The composite cover plate according to claim 1, wherein the first hard coating layer is further provided with an anti-fingerprint layer, which can prevent adhesion of fingerprints and various stains and improve the cleanliness of the cover plate.
3. The composite cover plate of claim 1, wherein the first hard coating layer is further provided with an AR film layer, so that reflection of light of the cover plate can be reduced.
4. A composite cover plate according to claim 1, wherein the PMMA/PC composite plate has a thickness of 0.05 to 2.0mm.
5. The composite cover plate of claim 4, wherein the PMMA/PC composite plate has a thickness of 1.0mm.
6. The composite cover sheet of claim 1 wherein the second hard coat layer has a light transmittance of greater than 90% and a haze of less than 0.9%.
7. The composite cover plate according to claim 1, wherein the thickness of the second hard coating layer is 0.003-0.05mm, so that friction damage of the external environment to the polarizing layer can be effectively isolated.
8. A touch display module comprising the composite cover plate, touch Sensor, optical adhesive, display module, lower polarizer and backlight module according to any one of claims 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355197.1U CN220872973U (en) | 2023-05-31 | 2023-05-31 | Composite cover plate and touch display module comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321355197.1U CN220872973U (en) | 2023-05-31 | 2023-05-31 | Composite cover plate and touch display module comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220872973U true CN220872973U (en) | 2024-04-30 |
Family
ID=90810328
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321355197.1U Active CN220872973U (en) | 2023-05-31 | 2023-05-31 | Composite cover plate and touch display module comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220872973U (en) |
-
2023
- 2023-05-31 CN CN202321355197.1U patent/CN220872973U/en active Active
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