CN114550588A - Flexible cover plate, display device and preparation method of flexible cover plate - Google Patents
Flexible cover plate, display device and preparation method of flexible cover plate Download PDFInfo
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- CN114550588A CN114550588A CN202210156978.1A CN202210156978A CN114550588A CN 114550588 A CN114550588 A CN 114550588A CN 202210156978 A CN202210156978 A CN 202210156978A CN 114550588 A CN114550588 A CN 114550588A
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- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
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- 229920001721 polyimide Polymers 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/14—Protective coatings, e.g. hard coatings
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Abstract
The embodiment of the application provides a flexible cover plate, a display device and a preparation method of the flexible cover plate. The flexible apron is including the first supporting layer and the hardening coating of range upon range of setting, and first supporting layer includes first supporting part and second supporting part, and the second supporting part includes a plurality of interval distribution's the first chamber that holds, and first supporting part inlays in each the first chamber that holds, and the hardness parameter of first supporting part and second supporting part is different. First supporting part and second supporting part that the hardness parameter is different are drawn together to first supporting layer in the flexible apron of this application embodiment, ensure when can providing preferred pliability that flexible apron can possess higher mechanical properties, improve the life of flexible apron.
Description
Technical Field
The application relates to the technical field of display equipment, in particular to a flexible cover plate, a display device and a preparation method of the flexible cover plate.
Background
With the rapid development of display technology, the demand of people for display devices is continuously increasing, and in order to further meet the demand that the display devices can be conveniently stored or carried when not in use, foldable or rollable flexible display devices attract more and more attention.
At present, the size of the foldable or rollable flexible display device is continuously reduced from the aspects of space saving and portability, so the design requirement for the terminal mechanism is higher and higher, and the flexible display device is a great challenge for the display industry at present.
Disclosure of Invention
The embodiment of the application provides a flexible cover plate, a display device and a preparation method of the flexible cover plate, and the service life of the flexible cover plate can be prolonged.
In a first aspect, an embodiment of the present application provides a flexible cover plate, including first supporting layer and the hardening coating of range upon range of setting, first supporting layer includes first supporting part and second supporting part, and the second supporting part includes a plurality of interval distribution's the first chamber that holds, and first supporting part inlays in each the first chamber that holds, and the hardness parameter of first supporting part and second supporting part is different.
In some embodiments, the second supporting portion has a first surface facing toward or away from the hardened coating in the thickness direction of the flexible cover plate, and the first receiving cavity is formed by the first surface being recessed inward.
In some embodiments, the first support portion has a hardness greater than a hardness of the second support portion.
In some embodiments, the first supporting portion and the first accommodating cavity are fixedly connected through an adhesive layer.
In some embodiments, the first support part has a second surface in the thickness direction, and the first surface is flush with the second surface.
In some embodiments, the second supporting portion includes a plurality of supporting sub-portions spaced apart from each other, adjacent supporting sub-portions surround to form the first accommodating cavity, and the first supporting portions and the supporting sub-portions are alternately distributed.
In some embodiments, the spacing between adjacent support subsections is the same as the spacing between adjacent first support subsections.
In some embodiments, the flexible cover plate further includes a second support layer disposed on a side of the first support layer close to the hardened coating, the second support layer includes a third support portion and a fourth support portion, the third support portion includes a plurality of second receiving cavities distributed at intervals, the fourth support portion is embedded in each of the second receiving cavities, and hardness parameters of the third support portion and the fourth support portion are different.
In some embodiments, the first support is the same material as the third support and the second support is the same material as the fourth support.
In some embodiments, the extension direction of the orthographic projection of the first support portion on the hardened coating intersects with the extension direction of the orthographic projection of the third support portion on the hardened coating.
In some embodiments, the extension direction of the orthographic projection of the first support portion on the hardened coating is perpendicular to the extension direction of the orthographic projection of the third support portion on the hardened coating.
In a second aspect, an embodiment of the present application further provides a display device, which includes a flexible display panel and the flexible cover plate of any one of the foregoing embodiments, where the flexible cover plate is disposed on one side of the light emitting surface of the flexible display panel.
In a third aspect, an embodiment of the present application further provides a method for manufacturing a flexible cover plate, including:
providing a first material layer, wherein the first material layer comprises a second supporting part and a first accommodating cavity formed by the second supporting part in a concave mode along the thickness direction;
and filling a first filling material in the first accommodating cavity, and shaping the first filling material to form a first supporting part, wherein the first supporting part and the second supporting part form a coplanar structure to form a first supporting layer, and the hardness parameters of the second supporting part and the first supporting part are different.
In some embodiments, the method of making further comprises:
providing a second supporting layer, wherein the second supporting layer comprises a third supporting part and a fourth supporting part, the third supporting part comprises a plurality of second accommodating cavities distributed at intervals, the fourth supporting part is embedded in each second accommodating cavity, and the hardness parameters of the third supporting part and the fourth supporting part are different;
the first support layer and the second support layer are laminated such that the first support portion intersects with the extending direction of the second support portion.
In some embodiments, the step of providing a second support layer comprises:
providing a second material layer, wherein the second material layer comprises a fourth supporting part and a second accommodating cavity formed by the fourth supporting part in a concave mode along the thickness direction;
and filling a second filling material in the second accommodating cavity, and shaping the second filling material to form a third supporting part, wherein the third supporting part and the fourth supporting part form a coplanar structure to form a second supporting layer.
The embodiment of the application provides a flexible cover plate, a display device and a preparation method of the flexible cover plate, wherein a first supporting layer in the flexible cover plate comprises a first supporting part and a second supporting part which have different hardness parameters, so that the effects of hardness and flexibility can be taken into consideration simultaneously, the flexible cover plate can be ensured to have higher mechanical performance, and the service life of the flexible cover plate is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible cover plate provided in an embodiment of the present application;
FIG. 2 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 3 is a schematic cross-sectional view of another flexible cover according to an embodiment of the present disclosure;
FIG. 4 is a schematic cross-sectional view of another flexible cover plate provided in the embodiments of the present application;
FIG. 5 is a schematic structural diagram of another flexible cover plate provided in the embodiments of the present application;
FIG. 6 is a schematic cross-sectional view taken at C-C in FIG. 5;
fig. 7 is a schematic cross-sectional view illustrating a display device according to an embodiment of the present disclosure;
FIG. 8 is a flow chart of a method for manufacturing a flexible cover according to an embodiment of the present application;
fig. 9a to 9b are schematic process diagrams of a method for manufacturing a flexible cover plate according to an embodiment of the present disclosure;
FIG. 10 is a flow chart of a method for manufacturing a flexible cover according to an embodiment of the present application;
fig. 11a to 11b are schematic process diagrams of a method for manufacturing a flexible cover plate according to an embodiment of the present application.
Fig. 12 is a flowchart of a method for manufacturing a flexible cover according to an embodiment of the present application;
fig. 13a to 13b are schematic process diagrams of a manufacturing method of a flexible cover plate according to an embodiment of the present application.
Description of the labeling:
1. a first support layer; 11. a first support section; 12. a second support portion; 121. a first accommodating chamber; 122. a supporting sub-portion; 13. bonding the adhesive layer; 14. glue line structure
2. A second support layer; 21. a third support portion; 22. a fourth support portion; 221. second containing cavity
3. Hardening the coating;
4. a flexible display panel;
a1, a first surface; a2, a second surface;
x, a first direction; y, second direction.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
In order to meet the requirements of users for large screens, large visual fields and convenience in carrying, foldable or rollable display devices have come to be produced. When the display device is used, the display device needs to be continuously switched between a contraction state and an expansion state so as to meet the requirements of different situations such as display, carrying and the like. In the process, the flexible cover plate on the display device needs to be bent or folded for multiple times, and the existing flexible cover plate needs to meet the requirement of rolling or folding, so that the mechanical property of the flexible cover plate is not high, and the problem of short service life exists.
In order to solve the above problem, in one aspect, please refer to fig. 1 and fig. 2, an embodiment of the present application provides a flexible cover plate, which includes a first supporting layer 1 and a hardening coating 3, which are stacked, the first supporting layer 1 includes a first supporting portion 11 and a second supporting portion 12, the second supporting portion 12 includes a plurality of first receiving cavities 121 distributed at intervals, the first supporting portion 11 is embedded in the first receiving cavities 121, and hardness parameters of the first supporting portion 11 and the second supporting portion 12 are different.
Flexible apron includes first supporting layer 1 and sclerosis coating 3, and sclerosis coating 3 sets up on first supporting layer 1, and first supporting layer 1 is transparent rete with sclerosis coating 3, and first supporting layer 1 is used for providing the supporting role for flexible apron, and sclerosis coating 3 is used for guaranteeing the rigidity on flexible apron surface for flexible apron provides certain hardness. When the flexible cover plate is arranged on the flexible display panel to form the display device, the first supporting layer 1 is arranged adjacent to the flexible display panel, light rays emitted by the flexible display panel penetrate into the hardened coating 3 through the first supporting layer 1, and then are emitted out through the hardened coating 3 to form a corresponding display effect.
The first supporting layer 1 comprises a first supporting part 11 and a second supporting part 12, and the first supporting part 11 and the second supporting part 12 are matched to form a film structure capable of covering the hardened coating 3 so as to separate the flexible display panel from the hardened coating 3 and play a supporting role. The first support 11 and the second support 12 have different hardness parameters, that is, one of the first support 11 and the second support 12 has higher flexibility, and the other has higher hardness. Compared with the scheme that a single material is used to play a supporting role in the traditional flexible cover plate, the first supporting layer 1 in the embodiment of the application at least comprises two materials with different hardness parameters, so that the flexibility of the flexible cover plate can be ensured, and the hardness strength can be improved to a certain extent.
In the embodiment of the present application, the hardness of the first support portion 11 may be greater than that of the second support portion 12, or the hardness of the second support portion 12 may be greater than that of the first support portion 11; the second supporting portion 12 may completely cover the first supporting portion 11, or may only cover a partial structure of the first supporting portion 11, and the specific structural relationship between the first supporting portion 11 and the second supporting portion 12 is not limited in the embodiment of the present application.
The first supporting part 11 and the second supporting part 12 that first supporting layer 1 includes hardness parameter dissimilarity in the flexible apron that this application embodiment provided can play and compromise hardness and pliability's effect simultaneously, ensures that flexible apron can possess higher mechanical properties, improves the life of flexible apron.
In some embodiments, the second supporting portion 12 has a first surface a1 facing toward or away from the hardened coating 3 along the thickness direction of the flexible cover plate, and the first receiving cavity 121 is formed by the first surface a1 being recessed inward.
As shown in fig. 2, the first surface a1 may be the surface of the second support 12 that contacts the hardened coating 3; as shown in fig. 3, the first surface a1 may be a surface of the second support 12 facing away from the hardened coating 3, that is, a surface of the second support 12 contacting the flexible display panel. The first accommodation chamber 121 is formed by the first surface a1 being recessed inward in the thickness direction, and the first support part 11 is embedded in the first accommodation chamber 121. Wherein the second support part 12 can play a role of bearing the first support part 11 and simultaneously is used for ensuring the reliability of the structure of the first support layer 1
In some alternative embodiments, the plurality of first receiving cavities 121 extend along the length direction of the flexible cover plate and are arranged side by side along the width direction of the flexible cover plate; alternatively, the plurality of first receiving cavities 121 extend in the width direction of the flexible cover plate and are arranged side by side in the length direction of the flexible cover plate.
In the embodiment of the present application, the first receiving cavity 121 may be formed after the second supporting portion 12 is formed, or may be formed before the second supporting portion 12, and the embodiment of the present application is not limited. Illustratively, a carrier is provided, a plurality of first supporting parts 11 are formed on the carrier at intervals, then a second supporting part 12 is formed on the carrier by coating and curing, etc., the height of the second supporting part 12 is greater than that of the first supporting part 11, and then the first supporting part 11 and the second supporting part 12 are separated from the carrier, so as to obtain the first supporting layer 1 in the embodiment of the present application.
In some embodiments, the first support 11 has a hardness greater than the hardness of the second support 12.
The first accommodation chamber 121 is formed by the first surface a1 being recessed inward in the thickness direction, and the first support part 11 is embedded in the first accommodation chamber 121. The embodiment of the present application sets the hardness of the first supporting portion 11 to be greater than that of the second supporting portion 12, so that the structural stability of the first accommodating cavity 121 can be ensured. Meanwhile, one side of the second supporting portion 12, which is opposite to the first surface a1, can have strong flexibility so as to meet the folding or curling requirement, and the folding or curling device has strong practicability. Alternatively, the depression height of the first accommodation chamber 121 is 10 μm.
In some embodiments, as shown in fig. 2 and 3, the first supporting portion 11 and the first accommodating cavity 121 are fixedly connected by the adhesive layer 13.
The first supporting portion 11 and the second supporting portion 12 are made of materials with different hardness parameters, and the first supporting portion 11 and the second supporting portion 12 may be separated from each other after the curing process. Therefore, in order to solve the problem, the embodiment of the present application increases the adhesive layer 13, and coats the adhesive layer 13 on the bottom of the first accommodating cavity 121, so that the adhesive layer 13 can fix the first supporting portion 11 and the second supporting portion 12, thereby ensuring that the finally formed first supporting layer 1 has a stable structure, and ensuring that the first supporting portion 11 and the second supporting portion 12 are not separated when the first supporting layer 1 is folded or curled. Alternatively, the adhesive layer 13 is made of a pressure-sensitive adhesive material and the thickness of the adhesive layer 13 is 3 μm.
In some embodiments, as shown in fig. 2 and 3, the first support part 11 has a second surface a2 in the thickness direction, and the first surface a1 is flush with the second surface a 2.
As can be seen from the foregoing, the first surface a1 is a surface of the second support portion 12 contacting the hardened coating 3, or a surface of the second support portion 12 contacting the flexible display panel. In order to ensure the connection reliability between the first support layer 1 and the hardened coating 3 or the flexible display panel, the embodiment of the present application sets the second surface a2 of the first support 11 to be flush with the first surface a1, that is, the thickness of the first support 11 is the same as the recessed height of the first receiving cavity 121, and the first surface a1 and the second surface a2 together form a flat surface, thereby facilitating the connection of the first support layer 1 and the hardened coating 3 or the flexible display panel.
In some embodiments, referring to fig. 4, the second supporting portion 12 includes a plurality of supporting sub-portions 122 arranged at intervals, adjacent supporting sub-portions 122 enclose to form a first accommodating cavity 121, and the first supporting portions 11 and the supporting sub-portions 122 are alternately distributed.
The structure of the second support portion 12 is similar to that of the first support portion 11, and is a multi-segment strip structure. The extending direction and the arrangement direction of the supporting subsections 122 and the first supporting part 11 are the same, that is, the supporting subsections 122 can extend along the length direction of the flexible cover plate and are arranged side by side along the width direction of the flexible cover plate; alternatively, the plurality of supporting sub-sections 122 extend in the width direction of the flexible cover and are arranged side by side in the length direction of the flexible cover. Alternatively, the first support part 11 has the same thickness as that of the support sub-part 122.
The plurality of supporting sub-portions 122 and the plurality of first supporting portions 11 are arranged in a staggered mode, the design is favorable for adjusting the relation between the flexibility and the hardness strength of the flexible cover plate, the folding or curling function of the flexible cover plate is guaranteed, meanwhile, the mechanical strength of the flexible cover plate is further improved, and the service life of the flexible cover plate is prolonged. It can be understood that in the embodiment of the present application, a glue layer structure 14 is required to be disposed between the first supporting layer 1 and the hardened coating 3 for fixing the first supporting portion 11 and the second supporting portion 12, so as to ensure the structural reliability between the first supporting portion 11 and the second supporting portion 12.
In some embodiments, the interval between the adjacent support subsections 122 is the same as the interval between the adjacent first support parts 11.
The spacing between adjacent support subsections 122 is the minimum distance between adjacent support subsections 122, and is also the width dimension of a single first support part 11; the spacing between the adjacent first support portions 11 is the minimum distance between the adjacent first support portions 11, and is also the width dimension of the single support sub-portion 122. The embodiment of the present application sets up the width dimension of first supporting part 11 to be the same with supporting sub-part 122 width dimension to realize that the pliability of flexible apron is unified with the coordination of hardness intensity, when guaranteeing flexible apron folding or curling performance, improve life.
In some embodiments, referring to fig. 5 and fig. 6, the flexible cover further includes a second support layer 2 disposed on a side of the first support layer 1 close to the hardened coating 3, the second support layer 2 includes a third support portion 21 and a fourth support portion 22, the third support portion 21 includes a plurality of second receiving cavities 221 distributed at intervals, the fourth support portion 22 is embedded in each second receiving cavity 221, and hardness parameters of the third support portion 21 and the fourth support portion 22 are different.
It will be appreciated that the third support portion 21 is similar in construction to the first support portion 11 and the fourth support portion 22 is similar in construction to the second support portion 12. For the structures of the third supporting portion 21 and the fourth supporting portion 22, reference may be made to the description of the first supporting portion 11 and the second supporting portion 12 in the foregoing embodiments, and the description of the embodiments of the present application is omitted here.
The second supporting layer 2 is additionally arranged on the basis of the first supporting layer 1, and the reliability of the flexible cover plate is further enhanced. Meanwhile, the second support layer 2 has a structure similar to that of the first support layer 1, so that the first support layer 1 and the second support layer 2 can be formed by the same preparation process, thereby reducing the production cost. Optionally, the thickness of the first support layer 1 is the same as the thickness of the second support layer 2.
In some embodiments, the first support 11 is made of the same material as the third support 21, and the second support 12 is made of the same material as the fourth support 22. Optionally, one of the first and second support parts 11 and 12 comprises Colorless Polyimide (Colorless Polyimide CPI) and/or polyethylene terephthalate (PET); another includes Ultra-Thin Glass (Ultra Thin Glass UTG). Wherein, the folding or curling performance of the ultrathin glass is poor, but the hardness and the strength are high; while colorless polyimide and polyethylene terephthalate have strong flexibility but poor hardness. The two materials are matched to form the first supporting layer 1 and the second supporting layer 2 which have both flexibility and hardness strength, so that the mechanical property of the flexible cover plate can be improved to a greater extent.
In some examples, the extending direction of the orthographic projection of the first support part 11 on the hardened coating 3 intersects with the extending direction of the orthographic projection of the third support part 21 on the hardened coating 3.
Exemplarily, the first support parts 11 extend in a first direction X in an orthographic projection of the hardened coating 3 and are arranged side by side in a second direction Y; the third support portions 21 extend in the second direction Y in an orthogonal projection of the hardened coating 3, and are arranged side by side in the first direction X. In this case, the first support layer 1 can improve the hardness strength of the flexible cover in the first direction X and ensure the flexibility of the flexible cover in the second direction Y; the second support layer 2 can improve the stiffness strength of the flexible cover in the second direction Y and ensure the flexibility of the flexible cover in the first direction X.
The flexible apron in this application embodiment can improve the hardness intensity of flexible apron on first direction X and second direction Y simultaneously, can compromise the pliability of flexible apron on first direction X and second direction Y simultaneously, ensures that flexible apron each is reliable and stable.
In some embodiments, the direction of extension of the orthographic projection of the first support 11 on the hardened coating 3 is perpendicular to the direction of extension of the orthographic projection of the third support 21 on the hardened coating 3. The first support portion 11 extends in a first direction X, and the third support portion 21 extends in a second direction Y, the first direction X being perpendicular to the second direction Y. Optionally, the first direction X and the second direction Y are a length direction and a width direction of the flexible cover plate, respectively.
In a second aspect, please refer to fig. 7, an embodiment of the present application provides a display device, which includes a flexible display panel 4 and a flexible cover plate according to any of the foregoing embodiments, where the flexible cover plate is disposed on a light emitting surface side of the flexible display panel 4.
The display device provided by the embodiment of the present application has the beneficial effects of the flexible cover plate provided by the embodiment of the present application, and specific descriptions on the flexible cover plate in the above embodiments may be specifically referred to, and this embodiment is not described herein again.
In a third aspect, referring to fig. 8 and 9, an embodiment of the present application provides a method for manufacturing a flexible cover plate, including:
s100, providing a first material layer, wherein the first material layer comprises a second supporting portion and a first accommodating cavity formed by the second supporting portion in a concave mode along the thickness direction.
S110, filling a first filling material in the first accommodating cavity, and shaping the first filling material to form a first supporting part, wherein the first supporting part and a second supporting part are coplanar to form a first supporting layer, and the hardness parameters of the second supporting part and the first supporting part are different.
In step S100, the first material layer includes a second supporting portion 12 and a first accommodating cavity 121, the second supporting portion 12 includes a plurality of first accommodating cavities 121, and the plurality of first accommodating cavities 121 are distributed side by side for carrying the first supporting portion 11. It should be noted that, before step S100, the first material layer needs to be processed to form the second supporting portion 12 and the first receiving cavity 121 with fixed shapes and sizes. For the preparation process of the first material layer, the embodiment of the present application is not limited, and for example, the second supporting portion 12 may be prepared and formed by a curing process, etc., and the first receiving cavity 121 may be formed by CNC machining.
In step S110, the first filling material is used to form the first supporting portion 11 of the first supporting layer 1, and the hardness parameters of the first supporting portion 11 and the second supporting portion 12 are different, that is, the hardness of the first supporting portion 11 may be greater than that of the second supporting portion 12, or may be less than that of the second supporting portion 12. The first filling material is filled in the first accommodating cavity 121, and optionally, the first filling material is coated in the first accommodating cavity 121 through an ultra-thin adhesive layer to realize position fixing with the second supporting portion 12.
This application embodiment adopts the common preparation of different materials to form first supporting layer 1, can play the effect of taking into account hardness and pliability simultaneously, ensures that flexible apron can possess higher mechanical properties, improves the life of flexible apron.
In some embodiments, referring to fig. 10 and 11, the method for manufacturing the flexible cover further includes:
s120, providing a second supporting layer, wherein the second supporting layer comprises a third supporting part and a fourth supporting part, the fourth supporting part comprises a plurality of second accommodating cavities distributed at intervals, the third supporting part is embedded in each second accommodating cavity, and hardness parameters of the third supporting part and the fourth supporting part are different.
And S130, laminating the first supporting layer and the second supporting layer, and enabling the extending directions of the first supporting part and the third supporting part to be crossed.
In step S120, the second supporting layer 2 includes a third supporting portion 21 and a fourth supporting portion 22 with different hardness parameters, and like the first supporting layer 1, the second supporting layer 2 can also have both hardness and flexibility, so as to further improve the mechanical performance and the service life of the flexible cover plate. Alternatively, the material of the third support portion 21 is the same as the material of the first support portion 11, and the material of the fourth support portion 22 is the same as the material of the second support portion 12.
In step S130, the first support layer 1 and the second support layer 2 are stacked, and the extending direction of the third support portion 21 intersects the extending direction of the first support portion 11. The design can improve the hardness strength of the flexible cover plate in different directions, and meanwhile, the flexibility of the flexible cover plate in different directions can be considered, so that the stability and reliability of the flexible cover plate at all places are ensured.
In some embodiments, referring to fig. 12 and 13, in step S120, the method includes:
and S121, providing a second material layer, wherein the second material layer comprises a fourth supporting part and a second accommodating cavity formed by the fourth supporting part in a concave mode along the thickness direction.
And S122, filling a second filling material in the second accommodating cavity, and shaping the second filling material to form a third supporting part, wherein the third supporting part and the fourth supporting part are coplanar to form a second supporting layer.
In steps S121 and S122, the preparation method of the second support layer 2 is similar to that of the first support layer 1, and the embodiments of the present application are not described herein again. It should be noted that, the preparation process of the first support layer 1 and the second support layer 2 is not limited in the examples of the present application. Illustratively, the first support layer 1 is first prepared and formed, and then the second support layer 2 is prepared and formed on the surface of the first support layer 1.
Although the embodiments disclosed in the present application are described above, the descriptions are only for the convenience of understanding the present application and are not intended to limit the present invention. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims.
As described above, only the specific embodiments of the present application are provided, and it can be clearly understood by those skilled in the art that, for convenience and brevity of description, the corresponding processes in the foregoing method embodiments may be referred to for replacement of the other connection manners described above, and are not described herein again. It should be understood that the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered within the scope of the present application.
Claims (10)
1. The utility model provides a flexible apron, its characterized in that, is including the first supporting layer and the sclerosis coating of range upon range of setting, first supporting layer includes first supporting part and second supporting part, the second supporting part includes a plurality of interval distribution's the first chamber that holds, first supporting part inlays in each the first chamber that holds, first supporting part reaches the hardness parameter of second supporting part is different.
2. The flexible cover sheet of claim 1, wherein the second support portion has a first surface facing toward or away from the hardened coating in a thickness direction of the flexible cover sheet, and the first receiving cavity is formed by the first surface being recessed inward;
preferably, the first support part has a hardness greater than that of the second support part;
preferably, the first supporting part and the first accommodating cavity are fixedly connected through an adhesive layer.
3. The flexible cover sheet of claim 2, wherein the first support has a second surface in the thickness direction, the first surface being flush with the second surface.
4. The flexible cover sheet of claim 1, wherein the second support portion includes a plurality of support subsections spaced apart from one another, adjacent support subsections enclosing to form the first receiving cavity, the first support portion alternating with the support subsections.
5. The flexible cover sheet of claim 4 wherein the spacing between adjacent support subsections is the same as the spacing between adjacent first support subsections.
6. The flexible cover plate of claim 1, further comprising a second support layer disposed on a side of the first support layer adjacent to the hardened coating, wherein the second support layer includes a third support portion and a fourth support portion, the third support portion includes a plurality of second receiving cavities distributed at intervals, the fourth support portion is embedded in each of the second receiving cavities, and hardness parameters of the third support portion and the fourth support portion are different;
preferably, the first support part is made of the same material as the third support part, and the second support part is made of the same material as the fourth support part.
7. The flexible cover sheet of claim 6, wherein the direction of extension of the orthographic projection of the first support in the hardened coating intersects the direction of extension of the orthographic projection of the third support in the hardened coating;
preferably, an extending direction of the orthographic projection of the first support part on the hardened coating is perpendicular to an extending direction of the orthographic projection of the third support part on the hardened coating.
8. A display device, comprising a flexible display panel and the flexible cover plate according to any one of claims 1 to 7, wherein the flexible cover plate is disposed on a light emitting surface side of the flexible display panel.
9. A method for preparing a flexible cover plate is characterized by comprising the following steps:
providing a first material layer, wherein the first material layer comprises a second supporting part and a first accommodating cavity formed by the second supporting part in a concave mode along the thickness direction;
and filling a first filling material in the first accommodating cavity, and shaping the first filling material to form a first supporting part, wherein the first supporting part and the second supporting part are coplanar to form a first supporting layer, and the hardness parameters of the second supporting part and the first supporting part are different.
10. The method of manufacturing according to claim 9, further comprising:
providing a second supporting layer, wherein the second supporting layer comprises a third supporting part and a fourth supporting part, the third supporting part comprises a plurality of second accommodating cavities distributed at intervals, the fourth supporting part is embedded in each second accommodating cavity, and hardness parameters of the third supporting part and the fourth supporting part are different;
stacking the first support layer and the second support layer such that the first support portion intersects with an extending direction of the third support portion;
preferably, the step of providing the second support layer includes:
providing a second material layer, wherein the second material layer comprises a fourth supporting part and a second accommodating cavity formed by the fourth supporting part in a concave mode along the thickness direction;
and filling a second filling material in the second accommodating cavity, and shaping the second filling material to form a third supporting part, wherein the third supporting part and the fourth supporting part are coplanar to form a second supporting layer.
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| CN114550588B (en) | 2023-11-28 |
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