CN112908173B - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN112908173B
CN112908173B CN202110143596.0A CN202110143596A CN112908173B CN 112908173 B CN112908173 B CN 112908173B CN 202110143596 A CN202110143596 A CN 202110143596A CN 112908173 B CN112908173 B CN 112908173B
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distance
grooves
display panel
groove
adjacent
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CN112908173A (en
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张杨
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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Wuhan China Star Optoelectronics Semiconductor Display Technology Co Ltd
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/301Indicating 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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Abstract

The embodiment of the application discloses display panel and display device, display panel include backplate, adhesive linkage and supporting layer, set up first arch and second arch respectively in the one side that backplate and supporting layer are close to the adhesive linkage, correspond the first recess that sets up and first protruding shape matching in the one side that the adhesive linkage is close to the backplate, correspond the second recess that sets up and the protruding shape matching of second in the one side that the adhesive linkage is close to the supporting layer. The first protrusion is embedded in the first groove, and the second protrusion is embedded in the second groove. Thereby can reduce the relative displacement between supporting layer and the backplate, reduce the stress that the adhesive linkage single received of buckling, avoid taking place the obscission between supporting layer and the backplate. Thereby prolonging the service life of the bent product.

Description

Display panel and display device
Technical Field
The application relates to the field of display, in particular to a display panel and a display device.
Background
At present, in the modern communication industry, the market demand of products such as mobile phones, televisions, flat panels, notebooks, digital cameras and the like is increasing, and various display devices are developing in a bendable manner.
The bending product has a great attribute of bendability, and the larger the stress generated by single bending of the bending product is, the shorter the bending life of the bending product is. Moreover, when the existing bending product is bent, the film layers of the bending product are easy to fall off. Specifically, when the existing bending product is bent, the relative displacement between the support layer and the back plate is large, so that the stress borne by the adhesive layer is larger than the cohesive limit of the adhesive layer, and the support layer and the back plate fall off.
Therefore, how to solve the problem that panel manufacturers need to overcome the defect that the film layers fall off when the existing bending product is bent is solved.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, and the technical problem that the existing bent product falls off between films when bent can be solved.
An embodiment of the present application provides a display panel, including:
the back plate comprises a first surface and a second surface which are oppositely arranged, and a plurality of first bulges are arranged on the first surface;
the bonding layer is arranged on the first surface, a plurality of first grooves are formed in one surface, close to the back plate, of the bonding layer, the first grooves correspond to the first bulges in a one-to-one mode, the shapes of the first grooves are matched with those of the first bulges, the first bulges are embedded into the first grooves, and a plurality of second grooves are formed in one surface, far away from the back plate, of the bonding layer;
the supporting layer is arranged on one surface, far away from the back plate, of the bonding layer, a plurality of second protrusions are arranged on one surface, close to the bonding layer, of the supporting layer, the second protrusions are matched with the second grooves in shape, and the second protrusions are embedded into the second grooves.
Optionally, in some embodiments of the present application, the display panel includes a bending area and planar areas disposed on two sides of the bending area, the planar areas include a first planar area and a second planar area symmetrically disposed, and the first groove and the second groove are alternately disposed along a direction from the first planar area to the second planar area.
Optionally, in some embodiments of the present application, a distance from the bottom of the first groove to the back plate is greater than a distance from the bottom of the second groove to the back plate.
Optionally, in some embodiments of the present application, the first groove and the second groove are both disposed in the bending region.
Optionally, in some embodiments of the present application, the planar area and the bending area are both provided with the first groove and the second groove.
Optionally, in some embodiments of the present application, a distance between two adjacent first grooves is equal, and a distance between two adjacent second grooves is equal.
Optionally, in some embodiments of the present application, a distance between two adjacent first grooves in the bending region is smaller than a distance between two adjacent first grooves in the planar region, and a distance between two adjacent second grooves in the bending region is smaller than a distance between two adjacent second grooves in the planar region.
Optionally, in some embodiments of the present application, a distance between two adjacent first grooves is 50 micrometers to 200 micrometers, and a distance between two adjacent second grooves is 50 micrometers to 200 micrometers.
Optionally, in some embodiments of the present application, a cross section of the first groove and the second groove perpendicular to the first surface has a shape of one of a rectangle, a zigzag, an isosceles trapezoid, and an arc.
Correspondingly, the embodiment of the application also provides a display device, and the display device comprises the display panel.
In the display panel and the display device provided by the embodiment of the application, the first protrusion and the second protrusion are respectively arranged on the back plate and one surface of the supporting layer close to the bonding layer, the first groove matched with the first protrusion in shape is correspondingly arranged on the surface of the bonding layer close to the back plate, and the second groove matched with the second protrusion in shape is correspondingly arranged on the surface of the bonding layer close to the supporting layer. The first protrusion is embedded into the first groove, and the second protrusion is embedded into the second groove, so that a toothed mechanical meshing structure is formed. Therefore, when the display panel is bent, the tooth-shaped mechanical meshing structure exists between the supporting layer and the back plate, so that the relative displacement between the supporting layer and the back plate can be reduced, the stress on the bonding layer caused by single bending is reduced, and the support layer and the back plate are prevented from falling off. Thereby prolonging the service life of the bent product.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a first structural schematic diagram of a display panel according to an embodiment of the present disclosure.
Fig. 2 is a second structural schematic diagram of a display panel according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a third structure of a display panel according to an embodiment of the present disclosure.
Fig. 4 is a fourth structural schematic diagram of a display panel provided in the embodiment of the present application.
Fig. 5 is a fifth structural schematic diagram of a display panel according to an embodiment of the present application.
Fig. 6 is a sixth structural schematic diagram of a display panel according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It should be apparent that the described embodiments are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "length," "width," "thickness," "upper," "lower," and the like, as used herein, refer to an orientation or positional relationship as shown in the drawings, which is used for convenience in describing the present application and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be taken as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between.
The embodiment of the application provides a display panel and a display device. The following are detailed below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
Specifically, referring to fig. 1, fig. 1 is a schematic view of a first structure of a display panel 10 according to an embodiment of the present disclosure. The display panel 10 provided in the embodiment of the present application includes a back sheet 101, an adhesive layer 102, and a support layer 103. The back plate 101 includes a first surface 101a and a second surface 101b, which are disposed opposite to each other, and a plurality of first protrusions 1011 are disposed on the first surface 101 a. The adhesive layer 102 is disposed on the first surface 101a, a plurality of first grooves 1021 is disposed on a surface of the adhesive layer 102 close to the back sheet 101, and a plurality of second grooves 1022 is disposed on a surface of the adhesive layer 102 far from the back sheet 101. The support layer 103 is disposed on a side of the adhesive layer 102 away from the back sheet 101. A plurality of second protrusions 1031 are disposed on a surface of the support layer 103 adjacent to the adhesive layer 102.
The first protrusions 1011 and the first grooves 1021 are arranged in a one-to-one correspondence manner, the shapes of the first protrusions 1011 and the first grooves 1021 are matched, and the first protrusions 1011 are embedded into the first grooves 1021; the second protrusions 1031 and the second recesses 1022 are disposed in a one-to-one correspondence, the second protrusions 1031 match with the second recesses 1022 in shape, and the second protrusions 1031 are embedded in the second recesses 1022. The first protrusion 1011 and the first recess 1021 cooperate to form a toothed mechanical engagement structure, and the second protrusion 1031 and the second recess 1022 cooperate to form a toothed mechanical engagement structure.
Here, the back sheet 101 is an inner film layer with respect to the support layer 103. When the display panel 10 is bent, the stress in the contact surface between the back sheet 101 and the adhesive layer 102 is tensile stress, the length of the contact surface between the back sheet 101 and the adhesive layer 102 is elongated, the stress in the contact surface between the support layer 103 and the adhesive layer 102 is compressive stress, and the length of the contact surface between the support layer 103 and the adhesive layer 102 is shortened. The stress applied to the adhesive layer 102 by a single bending operation is increased along with the increasing distance of the contact surface between the adhesive layer 102 and the back plate 101 and the decreasing distance of the contact surface between the adhesive layer 102 and the supporting layer 103, and when the stress applied to the adhesive layer 102 by a single bending operation is greater than the inner convergence limit thereof, the peeling-off phenomenon occurs between the films of the display panel 10. And the tooth-shaped mechanical engagement structure formed by the cooperation of the first protrusion 1011 and the first recess 1021 and the tooth-shaped mechanical engagement structure formed by the cooperation of the second protrusion 1031 and the second recess 1022 can reduce the extension distance of the contact surface of the adhesive layer 102 and the back plate 101 and the contraction distance of the contact surface of the adhesive layer 102 and the support layer 103, thereby reducing the stress on the adhesive layer 102 during single bending, and achieving the effect of avoiding the falling-off phenomenon between the film layers of the display panel 10.
The distance between two adjacent first grooves 1021 is 50 micrometers to 200 micrometers, and the distance between two adjacent second grooves 1022 is 50 micrometers to 200 micrometers. Specifically, the distance between two adjacent first recesses 1021 is 50 microns, 60 microns, 70 microns, 80 microns, 90 microns, 100 microns, 150 microns, or 200 microns, and the distance between two adjacent second recesses 1022 is 50 microns, 60 microns, 70 microns, 80 microns, 90 microns, 100 microns, 150 microns, or 200 microns.
It should be noted that, a distance between two adjacent first recesses 1021 and a distance between two adjacent second recesses 1022 cannot be too large or too small. If the distance between two adjacent first grooves 1021 and the distance between two adjacent second grooves 1022 are too large, the effect of reducing the elongation distance of the contact surface of the adhesive layer 102 and the back sheet 101 and the contraction distance of the contact surface of the adhesive layer 102 and the support layer 103 is not obvious; if the distance between two adjacent first recesses 1021 and the distance between two adjacent second recesses 1022 are too small, the conventional machining precision cannot be achieved. Therefore, the distance between two adjacent first recesses 1021 and the distance between two adjacent second recesses 1022 need to be set according to the specific requirements of the display panel 10.
Wherein, the distance from the first groove 1021 to the nearest second groove 1022 is not less than 10 microns. Specifically, the first recess 1021 is a distance of 10 microns, 12 microns, 14 microns, 16 microns, 18 microns, 20 microns, 25 microns, or 30 microns from its closest second recess 1022.
It should be noted that the distance between the first recess 1021 and the nearest second recess 1022 is related to the body thickness and the flowability of the glue used in the adhesive layer 102 itself. For a better flowing glue, the distance from the first groove 1021 to the nearest second groove 1022 needs to be no less than 10 microns; for a less flowable adhesive, the distance from the first recess 1021 to the nearest second recess 1022 needs to be no less than 20 microns. Therefore, the distance between the first recess 1021 and the closest second recess 1022 needs to be set according to the characteristics of the glue itself used for the adhesive layer 102.
Specifically, please refer to fig. 2, wherein fig. 2 is a second structural schematic diagram of the display panel 10 according to the embodiment of the present disclosure. The display panel 10 differs from the display panel 10 shown in fig. 1 in that: the display panel 10 includes a bending region 10a and planar regions 10b disposed at both sides of the bending region 10a, the planar regions 10b include a first planar region 10c and a second planar region 10d disposed oppositely, and the first recesses 1021 and the second recesses 1022 are alternately disposed along the first planar region 10c to the second planar region 10 d.
It should be noted that the distance from the first groove 1021 to the closest second groove 1022 includes a first distance and a second distance. The first distance is a distance between the first groove 1021 and the nearest second groove 1022 in a direction from the support layer 103 to the back plate 101, and the second distance is a distance between the first groove 1021 and the nearest second groove 1022 in a direction from the first planar area 10c to the second planar area 10 d. Since the first recesses 1021 and the second recesses 1022 are alternately arranged in the direction from the first planar region 10c to the second planar region 10d, the first distance does not affect the formation of the adhesive layer 102. Therefore, in the process of forming the adhesive layer 102, the second distance only needs to be limited according to the characteristics of the glue used for the adhesive layer 102. Therefore, the first recesses 1021 and the second recesses 1022 are alternately arranged in the direction from the first planar region 10c to the second planar region 10d, facilitating the formation of the adhesive layer 102.
The distance between two adjacent first grooves 1021 is equal, and the distance between two adjacent second grooves 1022 is equal. It should be noted that, the equal distance between two adjacent first recesses 1021 and the equal distance between two adjacent second recesses 1022 are both beneficial to forming the first recesses 1021 and the second recesses 1022 through the etching process. In addition, the specific values of the distance between two adjacent first recesses 1021 and the distance between two adjacent second recesses 1022 are determined according to the specific requirements of the display panel 10.
The distance from the bottom of the first groove 1021 to the support layer 103 is not less than 10 microns, and the distance from the bottom of the second groove 1022 to the back plate 101 is not less than 10 microns. Specifically, the bottom of the first groove 1021 is at a distance of 10 microns, 12 microns, 14 microns, 16 microns, 18 microns, 20 microns, 25 microns, or 30 microns from the support layer 103, and the bottom of the second groove 1022 is at a distance of 10 microns, 12 microns, 14 microns, 16 microns, 18 microns, 20 microns, 25 microns, or 30 microns from the back plate 101.
It should be noted that the distance between the bottom of the first recess 1021 and the support layer 103 and the distance between the bottom of the second recess 1022 and the back sheet 101 are related to the thickness and flowability of the adhesive used in the adhesive layer 102 itself. For the adhesive with better fluidity, the distance from the bottom of the first groove 1021 to the support layer 103 and the distance from the bottom of the second groove 1022 to the back plate 101 need to be not less than 10 micrometers; for the adhesive with relatively poor flowability, the distance from the bottom of the first recess 1021 to the support layer 103 and the distance from the bottom of the second recess 1022 to the back plate 101 need to be not less than 20 μm. Therefore, the distance between the bottom of the first recess 1021 and the support layer 103 and the distance between the bottom of the second recess 1022 and the back plate 101 need to be set according to the characteristics of the glue used in the adhesive layer 102.
Specifically, please refer to fig. 3, wherein fig. 3 is a schematic diagram of a third structure of the display panel 10 according to the embodiment of the present disclosure. The display panel 10 differs from the display panel 10 shown in fig. 2 in that: the distance A1 of the bottom of the first groove 1021 from the back plate 101 is greater than the distance A2 of the bottom of the second groove 1022 from the back plate 101.
It should be noted that, the distance a1 from the bottom of the first groove 1021 to the back panel 101 is greater than the distance a2 from the bottom of the second groove 1022 to the back panel 101. Therefore, when the display panel 10 is bent, the tooth-shaped mechanical engagement structures between the supporting layer 103 and the back plate 101 can contact with each other to generate mechanical resistance, so as to reduce the relative displacement between the supporting layer 103 and the back plate 101. Therefore, the stress applied to the bonding layer 102 during bending can be reduced, and the effect of preventing the films of the display panel 10 from falling off is achieved.
Specifically, referring to fig. 4, fig. 4 is a fourth schematic structural diagram of the display panel 10 according to the embodiment of the present application, and the difference between the display panel 10 and the display panel 10 shown in fig. 3 is: both the first recess 1021 and the second recess 1022 are provided at the bending zone 10 a.
It should be noted that, when the display panel 10 is bent, only in the bending region 10a of the display panel 10, the supporting layer 103 and the back plate 101 will be relatively displaced, so as to increase the stress applied to the adhesive layer 102 when the display panel is bent. Therefore, only the first groove 1021 and the second groove 1022 need to be disposed in the bending region 10a, so that the manufacturing cost of the display panel 10 can be reduced on the premise of avoiding the falling-off between the film layers of the display panel 10.
Specifically, please refer to fig. 5, wherein fig. 5 is a fifth structural diagram of the display panel 10 according to the embodiment of the present disclosure. The display panel 10 differs from the display panel 10 shown in fig. 3 in that: a distance A3 between two adjacent first grooves 1021 in the inflection zone 10a is smaller than a distance a4 between two adjacent first grooves 1021 in the planar zone 10b, and a distance a5 between two adjacent second grooves 1022 in the inflection zone 10a is smaller than a distance a6 between two adjacent second grooves 1022 in the planar zone 10 b.
It should be noted that the display panel 10 provided in the embodiment of the present application limits A3 to be smaller than a4 and a5 to be smaller than a6, namely, to reduce the distance between the first groove 1021 and the second groove 1022 in the bending region 10 a. In addition, when the display panel 10 is bent, only in the bending region 10a of the display panel 10, the support layer 103 and the back plate 101 will be relatively displaced, so as to increase the stress to which the adhesive layer 102 is subjected when being bent. Therefore, by reducing the distance between the first recesses 1021 and the second recesses 1022 at the inflection zone 10a, the density of the first recesses 1021 and the second recesses 1022 at the inflection zone 10a can be increased. Therefore, the stress applied to the adhesive layer 102 during bending can be reduced, and the peeling-off phenomenon between the film layers of the display panel 10 can be better avoided.
Specifically, please refer to fig. 6, wherein fig. 6 is a sixth structural schematic diagram of the display panel 10 according to an embodiment of the present disclosure. The display panel 10 differs from the display panel 10 shown in fig. 3 in that: the first groove 1021 and the second groove 1022 have a zigzag shape in a cross section perpendicular to the first face 101 a.
It should be noted that, in the forming process of the adhesive layer 102, the distance between the first groove 1021 and the closest second groove 1022 needs to be defined according to the characteristics of the glue used in the adhesive layer 102. When the cross-sectional shapes of the first groove 1021 and the second groove 1022 perpendicular to the first surface 101a are arranged in a zigzag manner, the distance between the first groove 1021 and the second groove 1022 can be further reduced on the basis of not affecting the formation of the adhesive layer 102, and the density of the first groove 1021 and the second groove 1022 can be increased. Therefore, the stress applied to the adhesive layer 102 during bending can be reduced more, and the effect of better preventing the films of the display panel 10 from falling off can be achieved.
The zigzag shape may be formed by a plurality of triangles or a plurality of semicircles. In the case where the zigzag shape is formed by a plurality of semicircles, damage to the adhesive layer 102 during bending can be reduced, which contributes to an increase in the life of the display panel 10.
The cross-sections of the first groove 1021 and the second groove 1022 perpendicular to the first surface 101a may also be shaped as an isosceles trapezoid or an arc. It should be noted that when the cross sections of the first groove 1021 and the second groove 1022 perpendicular to the first surface 101a are in the shape of an isosceles trapezoid or an arc, the first groove 1021 and the second groove 1022 are conveniently formed by an etching process. In addition, the specific shape of the cross section of the first recess 1021 and the second recess 1022 is determined according to the specific requirement of the display panel 10.
In the display panel that this application provided, set up first arch and second arch respectively in backplate and the one side that the supporting layer is close to the adhesive linkage, correspond the first recess that sets up and match with first protruding shape in the one side that the adhesive linkage is close to the backplate, correspond the second recess that sets up and match with the protruding shape of second in the one side that the adhesive linkage is close to the supporting layer. The first protrusion is embedded into the first groove, and the second protrusion is embedded into the second groove, so that a toothed mechanical meshing structure is formed. Therefore, when the display panel is bent, the tooth-shaped mechanical meshing structure exists between the supporting layer and the back plate, so that the relative displacement between the supporting layer and the back plate can be reduced, the stress on the bonding layer caused by single bending is reduced, and the support layer and the back plate are prevented from falling off. Thereby prolonging the service life of the bent product.
Correspondingly, the embodiment of the application also provides a display device. The display device comprises the display panel. The display device provided in the embodiments of the present application may be at least one of a smart phone (smartphone), a tablet personal computer (tablet personal computer), a mobile phone (mobile phone), a video phone, an electronic book reader (e-book reader), a laptop computer (laptop PC), a netbook computer (netbook computer), a workstation (workstation), a server, a personal digital assistant (personal digital assistant), a portable media player (portable multimedia player), an MP3 player, a mobile medical machine, a camera, a game machine, a digital camera, a car navigator, an electronic billboard, an automatic teller machine, a smart bracelet, a smart watch, a Virtual Reality (VR) device, or a wearable device (wearable device). The display panel has been described in detail in the above embodiments, and therefore, in the embodiments of the present application, the display panel is not described in detail.
In the display device that this application provided, set up first arch and second arch respectively in backplate and the one side that the supporting layer is close to the adhesive linkage, correspond the first recess that sets up and match with first protruding shape in the one side that the adhesive linkage is close to the backplate, correspond the second recess that sets up and match with the protruding shape of second in the one side that the adhesive linkage is close to the supporting layer. The first protrusion is embedded into the first groove, and the second protrusion is embedded into the second groove, so that a toothed mechanical meshing structure is formed. Therefore, when the display panel is bent, the tooth-shaped mechanical meshing structure exists between the supporting layer and the back plate, so that the relative displacement between the supporting layer and the back plate can be reduced, the stress on the bonding layer caused by single bending is reduced, and the falling-off phenomenon between the supporting layer and the back plate is avoided. Thereby prolonging the service life of the bent product.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The display panel and the display device provided by the embodiments of the present application are described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the embodiments above is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims (8)

1. A display panel, comprising:
the back plate comprises a first surface and a second surface which are oppositely arranged, and a plurality of first bulges are arranged on the first surface;
the adhesive layer is arranged on the first surface, a plurality of first grooves are formed in one surface, close to the back plate, of the adhesive layer, the first grooves correspond to the first bulges one by one, the shapes of the first grooves are matched with those of the first bulges, the first bulges are embedded into the first grooves, and a plurality of second grooves are formed in one surface, far away from the back plate, of the adhesive layer;
the supporting layer is arranged on one surface, far away from the back plate, of the bonding layer, a plurality of second protrusions are arranged on one surface, close to the bonding layer, of the supporting layer, the second protrusions are matched with the second grooves in shape, and the second protrusions are embedded into the second grooves;
the display panel comprises a bending area and plane areas arranged on two sides of the bending area, the plane areas comprise a first plane area and a second plane area which are symmetrically arranged, and the first grooves and the second grooves are alternately arranged along the direction from the first plane area to the second plane area;
the distance from the bottom of the first groove to the back plate is larger than the distance from the bottom of the second groove to the back plate.
2. The display panel according to claim 1, wherein the first groove and the second groove are both provided in the bending region.
3. The display panel according to claim 1, wherein the planar area and the bend area are each provided with the first groove and the second groove.
4. The display panel according to claim 3, wherein the distance between two adjacent first grooves is equal, and the distance between two adjacent second grooves is equal.
5. The display panel according to claim 3, wherein a distance between two adjacent first grooves in the bending region is smaller than a distance between two adjacent first grooves in the planar region, and a distance between two adjacent second grooves in the bending region is smaller than a distance between two adjacent second grooves in the planar region.
6. The display panel according to claim 1, wherein a distance between two adjacent first grooves is 50 to 200 micrometers, and a distance between two adjacent second grooves is 50 to 200 micrometers.
7. The display panel according to claim 1, wherein a cross section of the first groove and the second groove perpendicular to the first surface has a shape of one of a rectangle, a zigzag, an isosceles trapezoid, and an arc.
8. A display device characterized in that it comprises a display panel as claimed in any one of claims 1 to 7.
CN202110143596.0A 2021-02-02 2021-02-02 Display panel and display device Active CN112908173B (en)

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