CN213303502U - Assembly layer for flexible display and flexible display screen - Google Patents
Assembly layer for flexible display and flexible display screen Download PDFInfo
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- CN213303502U CN213303502U CN202021697984.0U CN202021697984U CN213303502U CN 213303502 U CN213303502 U CN 213303502U CN 202021697984 U CN202021697984 U CN 202021697984U CN 213303502 U CN213303502 U CN 213303502U
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Abstract
The utility model discloses a flexible display is with subassembly layer and flexible display screen, flexible display is with subassembly layer, include: a first auxiliary layer; the first organic silicon optical adhesive layer is positioned on the first auxiliary layer; the silicone rubber layer is positioned on the first silicone optical adhesive layer, and the thickness of the silicone rubber layer is greater than or equal to that of the first silicone optical adhesive layer; and the second auxiliary layer is positioned on the organic silicon rubber layer. According to the utility model provides a subassembly layer pliability is good, the creep resilience is strong, excellent with the screen body bonding force for the flexible display, has effectively avoided bad conditions such as layering, warpage and gassing easily to appear in folding, tensile and curling process.
Description
Technical Field
The utility model relates to an electronic equipment technical field, in particular to subassembly layer and flexible display screen for flexible display.
Background
As the technology of electronic products is developed and updated iteratively, the conventional Liquid Crystal Display (LCD) technology is gradually replaced with the Organic Light Emitting Diode (OLED) display technology. The OLED technology has the greatest advantage that flexible displays, including foldable, stretchable and rollable displays, can be realized due to self-luminescence. Compared with the conventional hard screen display, the flexible display has very strict requirements on the design of the laminated structure and the material and performance of each layer. However, the existing laminated structures on the market at present cannot realize effective bonding, and the defects of layering, warping, bubble generation and the like are easily caused in the folding, stretching and curling processes.
SUMMERY OF THE UTILITY MODEL
In view of above-mentioned prior art's defect, the utility model provides a flexible subassembly layer for display, this flexible subassembly layer for display includes first auxiliary layer, first organosilicon optical cement layer, organosilicon rubber layer, and the laminate of second auxiliary layer, matches each other between this laminate, can realize effectively bonding, satisfies the actual application demand of current flexible display equipment and equipment thereof.
Another object of the present invention is to provide a flexible display screen including the assembly layer for flexible display.
In order to achieve the above and other objects, the present invention provides a flexible display module layer, including: a first auxiliary layer; the first organic silicon optical adhesive layer is positioned on the first auxiliary layer; the silicone rubber layer is positioned on the first silicone optical adhesive layer, and the thickness of the silicone rubber layer is greater than or equal to that of the first silicone optical adhesive layer; and the second auxiliary layer is positioned on the organic silicon rubber layer.
In some embodiments, the assembly layer for a flexible display further comprises: a second silicone optical glue layer located between the silicone rubber layer and the second auxiliary layer.
In some embodiments, the silicone rubber layer has a thickness equal to or greater than a thickness of the second silicone optical rubber layer.
In some embodiments, the first auxiliary layer is a release film.
In some embodiments, the second auxiliary layer is a protective film.
In some embodiments, the silicone rubber layer has a thickness of 50-150 um.
In some embodiments, the first silicone optical glue layer has a thickness of 25-50 um.
The utility model also provides a flexible display screen, it includes: a first substrate; a first silicone optical glue layer located on the first substrate; the silicone rubber layer is positioned on the first silicone optical adhesive layer, and the thickness of the silicone rubber layer is greater than or equal to that of the first silicone optical adhesive layer; and the second base material is positioned on the organic silicon rubber layer.
In some embodiments, the first substrate is a flexible display module.
In some embodiments, the second substrate is a support layer.
The utility model provides a flexible display is with subassembly layer and flexible display screen. The flexible display assembly layer is sequentially stacked by utilizing the first auxiliary layer, the first organic silicon optical adhesive layer, the organic silicon rubber layer and the second auxiliary layer, the first auxiliary layer and the second auxiliary layer are respectively a release film and a protective film, the temporary protection effect is achieved, the first auxiliary layer and the second auxiliary layer can be removed in the using process, and the first organic silicon optical adhesive layer and the organic silicon rubber layer can be used in the flexible display screen. The organic silicon rubber layer in the flexible display assembly layer is larger than or equal to the thickness of the first organic silicon optical rubber layer, namely the thickness of the first organic silicon optical rubber layer is smaller than or equal to the thickness of the organic silicon rubber layer, and the flexible display assembly layer has good flexibility and excellent creep recovery performance, so that the display screen comprising the flexible display assembly layer is free from the adverse conditions of layering, warping, bubble generation and the like in the actual use process, such as folding, stretching and curling process. Furthermore, the utility model has the advantages of simple structure, with low costs, be suitable for large-scale industrial production.
Drawings
Fig. 1 shows a schematic structural diagram of an embodiment of a component layer for a flexible display according to the present invention.
Fig. 2 shows a schematic structural diagram of another specific embodiment of the assembly layer for a flexible display according to the present invention.
Fig. 3 shows a schematic structural diagram of a specific embodiment of the flexible display screen provided by the present invention.
Description of the symbols
100 flexible display component layer
101 first auxiliary layer
102 second auxiliary layer
110 first organic silicon optical adhesive layer
120 silicone rubber layer
130 second organic silicon optical adhesive layer
200 flexible display screen
210 first substrate
220 second substrate
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.
It should be noted that the drawings provided in the present embodiment are only for illustrating the basic idea of the invention in a schematic manner, and only the components related to the invention are shown in the drawings rather than being drawn according to the number, shape and size of the components in actual implementation, and the form, quantity and proportion of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
In the present invention, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application. Furthermore, the terms "first" and "second," if any, are used for descriptive and distinguishing purposes only and are not to be construed as indicating or implying relative importance.
Fig. 1 shows a schematic structural diagram of a flexible display assembly layer 100, where the flexible display assembly layer 100 includes a laminated structure of a first silicone optical adhesive layer 110 and a silicone rubber layer 120, which are sequentially laminated, and further, a first auxiliary layer 101 and a second auxiliary layer 102 are respectively provided on the first silicone optical adhesive layer 110 and the silicone rubber layer 120 to assist in forming the first silicone optical adhesive layer 110 and the silicone rubber layer 120 for lamination and protecting their surfaces from the outside. The laminated structures of the first auxiliary layer 101, the first organic silicon optical adhesive layer 110, the organic silicon rubber layer 120 and the second auxiliary layer 102 have good matching performance, the material of the assembly layer has good flexibility and creep recovery performance, and has excellent adhesion performance with a module, so that the assembly layer 100 for flexible display has excellent folding, stretching and curling performance, and is not easy to have poor conditions such as layering, warping and bubble generation.
As shown in fig. 1, the first auxiliary layer 101 is, for example, a release film, further, for example, a fluorine release film, and is used for coating a silicone optical adhesive to form a first silicone optical adhesive layer 110 on a surface thereof and protect the surface of the first silicone optical adhesive layer 110, a peeling force of the first auxiliary layer 101 is equal to or less than 0.12N/cm, for example, 0.10N/cm, 0.08N/cm, a thickness of the first auxiliary layer 101 is not particularly limited, and may be selected according to actual needs, for example, 50 to 100um, for example, 50 um.
As shown in fig. 1, the first silicone optical adhesive layer 110 is located on the first auxiliary layer 101, and the first silicone optical adhesive layer 110 is made of, for example, a silicone optical adhesive having a relatively large molecular weight and a relatively low crosslinking density, thereby ensuring high adhesiveness and high adhesion performance. Furthermore, the storage modulus of the organic silicon optical adhesive is less than or equal to 0.05MPa, such as 0.04MPa, at 25 ℃ and under the condition of 1Hz, and the creep recovery performance is excellent. The first silicone optical glue layer 110 has a thickness of 25-50um, such as 25um, 30um, 35um, 40 um.
As shown in fig. 1, the silicone rubber layer 120 is disposed on the first silicone optical rubber layer 110, and the silicone rubber layer 120 is a layer formed by an organosiloxane material, which has excellent low-temperature flexibility and high-temperature resistance, creep recovery resistance, and easy processing due to the structure of the polymer itself. The silicone rubber layer 120 has low or no tackiness, and adheres to the first silicone optical adhesive layer 110 under the adhesive action of the first silicone optical adhesive layer 110, and the adhesive force between the silicone rubber layer and the first silicone optical adhesive layer is greater than or equal to 4N/cm, such as 4N/cm, 5N/cm, and 6N/cm. Further, based on ensuring the expected flexibility of the assembly layer 100 for flexible display and the lamination between the laminated bodies, the thickness of the silicone rubber layer 120 is greater than or equal to the thickness of the silicone optical adhesive layer 110, and the thickness of the silicone optical adhesive layer 110 is, for example, 50 to 150um, and further 80 to 150um, for example, 50um, 100um, 120m, which satisfies the repeated use of the folding, stretching, and curling properties of the assembly layer 100 for flexible display.
As shown in fig. 1, the second auxiliary layer 102 is disposed on the silicone rubber layer 120, and the second auxiliary layer 102 is, for example, a protective film, and can be obtained by coating a film material, for example, a PET film material, with a silicone release agent, and further attaching the silicone rubber layer 120 to the second auxiliary layer 102, thereby assisting in forming the laminate structure of the flexible display device assembly layer 100 of the present invention and protecting the surface of the silicone rubber layer 120. The peeling force of the second auxiliary layer 102 is 0.4N/cm or less, and further 0.3N/cm, 0.2N/cm, 0.1N/cm. The thickness of the protective layer 20 is 50-100um, for example 50 um.
As shown in fig. 2, in another embodiment of the present disclosure, based on ensuring the bonding effect and adhesion between the stacked layers, the flexible display component layer 100 further includes a second silicone optical adhesive layer 130, the second silicone optical adhesive layer 130 has, for example, the same structure as the first silicone optical adhesive layer 110, for example, is made of the same material, has the same thickness, and the like, but is not limited thereto, and may have a different structure from the first silicone optical adhesive layer 110, for example, the second silicone optical adhesive layer 130 and the first silicone optical adhesive layer 110 are made of silicone optical adhesives with different properties, and in addition, the thickness of the second silicone optical adhesive layer 130 is 25-50um, and is different from the thickness of the first silicone optical adhesive layer 110 in this range, for example, 30um, 40um, 45 um. Further, the thickness of the second silicone optical adhesive layer 130 is less than or equal to the thickness of the silicone rubber layer 120, so as to ensure the overall performance of the flexible display assembly layer 100.
In manufacturing the flexible display device layer 100, i.e., in the lamination process, for example, a silicone release agent may be coated on a film material, such as a PET film material, to form a protective film as the second auxiliary layer 102, and a silicone rubber may be coated on a release film, such as a fluorine release film, at a curing temperature of 150 ℃, for a curing time of 3min to obtain a silicone rubber layer 120, and then the silicone rubber layer 120 may be attached to one surface of the second auxiliary layer 102 and wound up. Meanwhile, coating organic silicon optical adhesive on another release film, for example, a fluorine release film, curing at 150 ℃ for 3min to obtain a first organic silicon optical adhesive layer 110, tearing off the release film of the organic silicon rubber layer 120, attaching the first organic silicon optical adhesive layer 110 to the surface of the organic silicon rubber layer 120, and rolling, wherein the release film left on the first organic silicon optical adhesive layer 110 serves as a first auxiliary layer 101, and the first auxiliary layer 101 and the second auxiliary layer 102 assist in forming a laminated structure of the flexible display component layer 100 and are respectively located on the surfaces of the first organic silicon optical adhesive layer 110 and the organic silicon rubber layer 120 to protect the first organic silicon optical adhesive layer 110 and the organic silicon rubber layer 120 from the outside.
As shown in fig. 3, when the flexible display panel 200 is manufactured using the flexible display device layer 100, for example, the first auxiliary layer 101 and the second auxiliary layer 102 on the flexible display device layer 100 may be peeled off and the first substrate 210 and the second substrate 220 may be bonded to each other, and the flexible display device layer 200 may be manufactured by a pressure defoaming process.
As shown in fig. 3, after the first auxiliary layer 101 is peeled off, the first substrate 210 is attached to the first silicone optical adhesive layer 110, and the adhesion between the first substrate 210 and the first silicone optical adhesive layer 110 is greater than or equal to 4N/cm, for example, 4N/cm, 5N/cm, and 6N/cm. The first substrate 210 is a flexible display module of the flexible display device 200, and the module packaging material may be any one of, for example, a Polyester (PET) layer, a Polyimide (PI) layer, and an ultra-thin glass (UTG) layer, such as a Polyimide (PI) layer, an ultra-thin glass (UTG), and further, a material such as a transparent polyimide (CPI), has a light transmittance of 92% or more, and has excellent dynamic bending properties and high and low temperature stability.
As shown in fig. 3, the second substrate layer 220 is attached to the silicone rubber layer 120 after the second auxiliary layer 102 is peeled off, the material of the second substrate layer 220 is a support layer, the main function of which is to provide the overall strength of the flexible display device, and the material of which may be exemplified by any one of Polyester (PET), Polyimide (PI), ultra-thin glass (UTG) and ultra-thin stainless steel (SUS), such as Polyimide (PI), ultra-thin stainless steel (SUS), and further, such as ultra-thin stainless steel (SUS), which has excellent mechanical properties.
As described above, the present invention provides a flexible display device layer 100 having good flexibility and excellent creep recovery performance, so that no undesirable situations such as delamination, warping, and generation of bubbles occur in the display screen 200 including the flexible display device layer 100 during actual use, for example, in the process of folding, stretching, and curling. Thus, the display screen 200 may be further installed and disposed on an electronic device body to manufacture a flexible display device, such as a portable electronic device (e.g., a mobile phone, an IPAD, a computer), an electronic vehicle-mounted device, a display device, an image recognition device, or other electronic devices.
The above description is only a preferred embodiment of the present application and the explanation of the applied technical principle, and it should be understood by those skilled in the art that the scope of the present application is not limited to the technical solution of the specific combination of the above technical features, and also covers other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept, for example, the technical solutions formed by mutually replacing the above technical features (but not limited to) having similar functions disclosed in the present application.
Besides the technical features described in the specification, other technical features are known to those skilled in the art, and further description of the other technical features is omitted here in order to highlight the innovative features of the present invention.
Claims (10)
1. A component layer for a flexible display, comprising:
a first auxiliary layer;
the first organic silicon optical adhesive layer is positioned on the first auxiliary layer;
the silicone rubber layer is positioned on the first silicone optical adhesive layer, and the thickness of the silicone rubber layer is greater than or equal to that of the first silicone optical adhesive layer;
and the second auxiliary layer is positioned on the organic silicon rubber layer.
2. The flexible display assembly layer according to claim 1, further comprising: a second silicone optical glue layer located between the silicone rubber layer and the second auxiliary layer.
3. The assembly layer for a flexible display according to claim 2, wherein the thickness of the silicone rubber layer is equal to or greater than the thickness of the second silicone optical rubber layer.
4. The assembly layer for a flexible display according to claim 1, wherein the first auxiliary layer is a release film.
5. The assembly layer for a flexible display according to claim 1, wherein the second auxiliary layer is a protective film.
6. The assembly layer for a flexible display according to claim 1, wherein the thickness of the silicone rubber layer is 50 to 150 um.
7. The assembly layer for a flexible display according to claim 1, wherein the thickness of the first silicone optical glue layer is 25-50 um.
8. A flexible display screen, comprising:
a first substrate;
a first silicone optical glue layer located on the first substrate;
the silicone rubber layer is positioned on the first silicone optical adhesive layer, and the thickness of the silicone rubber layer is greater than or equal to that of the first silicone optical adhesive layer;
and the second base material is positioned on the organic silicon rubber layer.
9. The flexible display screen of claim 8, wherein the first substrate is a flexible display module.
10. The flexible display of claim 8, wherein the second substrate is a support layer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021697984.0U CN213303502U (en) | 2020-08-14 | 2020-08-14 | Assembly layer for flexible display and flexible display screen |
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| CN202021697984.0U CN213303502U (en) | 2020-08-14 | 2020-08-14 | Assembly layer for flexible display and flexible display screen |
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| CN213303502U true CN213303502U (en) | 2021-05-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464965A (en) * | 2021-06-11 | 2022-12-13 | 白石有限公司 | Display protector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115464965A (en) * | 2021-06-11 | 2022-12-13 | 白石有限公司 | Display protector |
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Address after: 213000 No.20 Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee after: Xinlun electronic materials (Changzhou) Co.,Ltd. Address before: 213000 No.20 Changyang Road, West Taihu science and Technology Industrial Park, Wujin District, Changzhou City, Jiangsu Province Patentee before: Xinlun Technology (Changzhou) Co.,Ltd. |