CN114284449B - Display module and display device - Google Patents
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- CN114284449B CN114284449B CN202111458715.8A CN202111458715A CN114284449B CN 114284449 B CN114284449 B CN 114284449B CN 202111458715 A CN202111458715 A CN 202111458715A CN 114284449 B CN114284449 B CN 114284449B
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- 239000010410 layer Substances 0.000 claims abstract description 139
- 230000017525 heat dissipation Effects 0.000 claims abstract description 57
- 239000012790 adhesive layer Substances 0.000 claims abstract description 45
- 239000003292 glue Substances 0.000 claims abstract description 26
- 238000007599 discharging Methods 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 239000011889 copper foil Substances 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 2
- 238000009795 derivation Methods 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
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- 238000005516 engineering process Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 230000001814 effect on stress Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The application discloses a display module and a display device, which relate to the technical field of display and comprise: a planar region and a curved region at least partially surrounding the planar region; the display module comprises a display panel, an adhesive layer and a heat dissipation layer which are arranged in a stacked manner, wherein the adhesive layer and the heat dissipation layer are both positioned on one side, away from the light emitting surface, of the display panel, and the adhesive layer is positioned between the display panel and the heat dissipation layer; the bubble guiding layer is positioned on one side of the display panel, which is away from the light emitting surface, and is used for discharging bubbles between the film layers. The bubble guiding layer is arranged, the glue layer is multiplexed with the bubble guiding layer, and the bubble guiding layer is used for guiding out bubbles among the film layers by structurally designing the glue layer positioned in the curved surface area; the bubble leading-out layer is arranged on one side of the display panel, which is away from the light-emitting surface, and the bubble leading-out layer can effectively improve the peeling and cracking problems of the film layer in the curved surface area of the display module and improve the quality of the display module.
Description
Technical Field
The application relates to the technical field of display, in particular to a display module and a display device.
Background
The flexible display panel is developed on the basis of the organic light-emitting display panel (Organic Light Emitting Diode) technology, and based on the flexible display panel technology, the curved surface screen mobile phone terminal with the bent cover plate edge appears.
For curved screen, when the bending angle of the left and right curved surfaces of the glass cover plate is larger, the effect of no frame is better when the glass cover plate is seen from the front, and when the bending angle of the left and right hyperboloid is larger than 90 ° After that, the left and right frames of the front view can be invisible. However, when the bending angle of the curved surface of the glass cover plate is larger, bubbles are easily generated between the film layers attached to the curved surface area, so that the film layers are peeled off (peeling), and the film layers are broken (crack), so that there is a need to improve the problem of bubbles generated at the edge of the curved surface display module.
Disclosure of Invention
In view of the above, the present application provides a display module and a display device, in which bubbles in a film layer of the display module can be effectively guided out by providing a bubble guiding layer, so as to improve the quality of the display module.
In order to solve the technical problems, the application has the following technical scheme:
in a first aspect, the present application provides a display module, including: a planar region and a curved region at least partially surrounding the planar region;
the display module comprises a display panel, an adhesive layer and a heat dissipation layer which are arranged in a stacked manner, wherein the adhesive layer and the heat dissipation layer are both positioned on one side, away from the light emitting surface, of the display panel, and the adhesive layer is positioned between the display panel and the heat dissipation layer;
the bubble guiding layer is positioned on one side of the display panel, which is away from the light emitting surface, and is used for discharging bubbles between the film layers.
In a second aspect, the present application further provides a display device, including a display module, where the display module is the display module provided by the present application.
Compared with the prior art, the display module and the display device provided by the application have the advantages that at least the following effects are realized:
the display module and the display device provided by the application comprise a cover plate, a display panel, a glue layer and a heat dissipation layer which are arranged in a stacked manner, wherein the glue layer and the heat dissipation layer are both positioned on one side of the display panel, which is away from the light-emitting surface, and the glue layer is positioned between the display panel and the heat dissipation layer, and the cover plate is positioned on one side of the display panel, which is close to the light-emitting surface; the bubble guiding layer is multiplexed with the adhesive layer, and is used for guiding out bubbles among the film layers by structurally designing the adhesive layer positioned in the curved surface area; the bubble leading-out layer is arranged on one side of the display panel, which is away from the light-emitting surface, and the bubble leading-out layer can effectively improve the peeling and cracking problems of the film layer in the curved surface area of the display module and improve the quality of the display module.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a schematic structural diagram of a display module according to an embodiment of the application;
FIG. 2 is a schematic diagram of another embodiment of the present application;
FIG. 3 is a cross-sectional view of the display module along A-A' of the embodiment of FIG. 1;
FIG. 4 is another cross-sectional view of the display module along A-A' of the embodiment of FIG. 1;
fig. 5 is a top view of the display module provided in the present embodiment;
fig. 6 is a top view of another display module provided in the present embodiment;
fig. 7 is a top view of another display module according to the present embodiment;
FIG. 8 is another cross-sectional view of the display module along A-A' of the embodiment of FIG. 1;
fig. 9 is a top view of another display module provided in the present embodiment;
fig. 10 is a top view of another display module according to the present embodiment;
fig. 11 is a top view of a display device according to an embodiment of the application.
Detailed Description
Certain terms are used throughout the description and claims to refer to particular components. Those of skill in the art will appreciate that a hardware manufacturer may refer to the same component by different names. The description and claims do not take the form of an element differentiated by name, but rather by functionality. As used throughout the specification and claims, the word "comprise" is an open-ended term, and thus should be interpreted to mean "include, but not limited to. By "substantially" is meant that within an acceptable error range, a person skilled in the art is able to solve the technical problem within a certain error range, substantially achieving the technical effect. Furthermore, the term "coupled" as used herein includes any direct or indirect electrical coupling. Accordingly, if a first device couples to a second device, that connection may be through a direct electrical coupling to the second device, or through another device or coupling means coupled to ground. The description hereinafter sets forth a preferred embodiment for practicing the application, but is not intended to limit the scope of the application, as the description is given for the purpose of illustrating the general principles of the application. The scope of the application is defined by the appended claims. The same points between the embodiments are not described in detail.
The following detailed description refers to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present application, fig. 2 is another schematic structural diagram of the display module according to the embodiment of the present application, fig. 3 is a cross-sectional view along A-A' of the display module according to the embodiment of fig. 1, please refer to fig. 1-3, and a display module 100 according to the present application includes: a planar region 10 and a curved region 20 at least partially surrounding the planar region 10;
the display module 100 includes a display panel 30, a glue layer 40 and a heat dissipation layer 50 that are stacked, wherein the glue layer 40 and the heat dissipation layer 50 are both located at one side of the display panel 30 facing away from the light emitting surface S, and the glue layer 40 is located between the display panel 30 and the heat dissipation layer 50;
the bubble guiding layer 70 is located at a side of the display panel 30 facing away from the light emitting surface, and the bubble guiding layer 70 is used for discharging bubbles between the film layers.
Specifically, please continue to refer to fig. 1 to 3, the display module 100 in this embodiment includes a plane and a curved surface area 20, the curved surface area 20 at least partially surrounds the plane area 10, the curved surface area 20 and the plane area 10 are both used for displaying images, and of course, the display module 100 further includes a non-display area, which is not used for displaying images, and the non-display area at least partially surrounds the plane area or the curved surface area (shown in the figure); the display module 100 further comprises a display panel 30, wherein a glue layer 40 and a heat dissipation layer 50 are arranged on one side of the display panel 30, the glue layer 40 is used for bonding the display panel 30 and the glue layer 40, the heat dissipation layer 50 has the functions of flattening, heat dissipation and water and oxygen isolation, and optionally, the heat dissipation film layer is copper foil; optionally, a cover plate 60 is provided at the other side of the display panel 30, the cover plate 60 protecting the display panel 30 and being light-permeable, alternatively, the cover plate 60 may be a glass cover plate; the cover plate 60 is located at a side of the display panel 30 near the light-emitting surface, the adhesive layer 40 and the heat dissipation layer 50 are located at a side of the display panel 30 away from the light-emitting surface, and the adhesive layer 40 is located between the display panel 30 and the heat dissipation layer 50. It can be understood that the display module 100 in this embodiment includes a curved surface area 20, and the cover plate 60, the display panel 30, the adhesive layer 40 and the heat dissipation layer 50 all have the curved surface area 20; the display panel 30 is a flexible display panel, and the flexible display panel gradually gets more attention with good user experience, so that the flexible display panel is lighter and thinner in volume, and can correspondingly reduce power consumption; meanwhile, the flexible display panel can be bent, so that the display requirement of a large size is not contradicted with portability; in addition, the display panel 30 of the present application employs an organic light emitting display panel (Organic Light Emitting Diode) which has advantages of a wide color gamut, high contrast, energy saving, and foldability.
In the related technology, on one hand, in the process of manufacturing the display module, the heat dissipation layer is firstly absorbed by the jig, moves to a proper attaching position, vacuum absorption is released, the roller on the jig moves downwards, the roller slides leftwards/rightwards, so that the heat dissipation layer is adhered to the adhesive layer on the display panel, and under the action of free falling bodies and the roller, the heat dissipation layer is positioned in the middle area and the edge area and is firstly contacted with the adhesive layer, on the basis, the roller moves leftwards/rightwards, so that part of bubbles cannot be discharged, and the bubbles cannot be discharged in the edge area in the display module, so that each film layer is further stripped or split; on the other hand, the heat dissipation layer has high hardness and Young's modulus, and poor adhesion, so that a larger adhesion pressure is required for adhering the heat dissipation layer, and peeling and cracking between the film layers are further aggravated.
In view of this, please continue to refer to fig. 1-3, in this embodiment, a bubble guiding layer 70 is provided, the bubble guiding layer 70 multiplexes the glue layers 40, and the bubbles between the film layers are guided out by structurally designing the glue layers 40 located in the curved surface area 20; the bubble guiding layer 70 is located at one side of the display panel 30 away from the light emitting surface, and the arrangement of the bubble guiding layer 70 can effectively improve the peeling and cracking problems of the film layer in the curved surface area 20 of the display module 100, and improve the quality of the display module.
It should be noted that, in the curved display module 100 according to the embodiment of the present application, any other necessary structures may be included as required, for example: a transparent optical adhesive layer (OCA) for adhering the cover plate 60 to a structure (e.g., the display panel 30) therebelow; a circular Polarizer (POL) disposed on a surface of the display panel 30 for preventing reflection influence of external ambient light on the display module 100; a Back Plate (BP) disposed on the Back surface of the display panel 30 for protecting and supporting the display panel 30. Since fig. 3 is only for illustrating the positional relationship between the film layers, the curved portions at both sides of a portion of the film layers are not shown, and the curved display module 100 includes the cover plate 60, the transparent optical adhesive layer 40, the circular polarizer, the display panel 30, the back plate film, the adhesive layer 40 and the heat dissipation layer 50 sequentially stacked from top to bottom.
It should be noted that, the embodiment shown in fig. 1 only schematically illustrates the schematic positional relationship between the curved surface area 20 and the planar area 10, and does not represent the actual dimensions of the planar area 10 and the curved surface area 20; the embodiment shown in fig. 2 only illustrates that the display module 100 includes 2 curved surface areas 20, alternatively, the number of curved surface areas 20 in the present application may be set to 4, which is determined according to the requirement in actual manufacturing; the embodiment shown in fig. 3 only schematically illustrates the positional relationship of the film layers, wherein the actual thicknesses of the cover plate 60, the display panel 30, the adhesive layer 40 and the heat dissipation layer 50 are not represented, and the radius of curvature of the curved surface area 10 is not represented, which may be determined according to the actual manufacturing requirements.
With continued reference to FIG. 3, in an alternative embodiment of the present application, the bubble egress layer 70 multiplexes the glue layer 40;
the thickness of the glue layer 40 located in the curved surface area 20 is different in the direction of the radius of curvature of the curved surface area 20.
Specifically, as shown in fig. 3, in the embodiment, the bubble guiding layer 70 multiplexes the glue layers 40, and optionally, the glue layers 40 are made of spa, the glue layers 40 located in the curved surface area 20 have different thicknesses along the direction of the radius of curvature of the curved surface area 20, and the glue layers 40 located in the planar area 10 have the same thickness along the direction perpendicular to the light emitting surface of the display panel 30; in this way, in the process of laminating the film layers of the display module 100, according to the sequential process of contact between the heat dissipation layer 50 and the adhesive layer 40 in the rolling process of the roller of the jig, the mode of different thicknesses of the adhesive layer 40 is adopted, so that air bubbles can be discharged conveniently, and the yield of products is improved.
With continued reference to fig. 3, in an alternative embodiment of the present application, in the direction along the plane area 10 toward the curved surface area 20, the thickness of the adhesive layer 40 located in the curved surface area 20 along the radius of curvature of the curved surface area 20 increases and decreases.
Specifically, as shown in fig. 3, in the embodiment, the thickness of the adhesive layer 40 located in the curved surface area 20 along the direction of pointing to the curved surface area 20 along the plane area 10 is different along the direction of the radius of curvature of the curved surface area 20, alternatively, the thickness of the adhesive layer 40 may be limited according to the structure of the curved surface area 20 and the radius of curvature of the curved surface area 20, and the thickness of the adhesive layer 40 may be limited according to the sequential contact sequence of the different areas of the heat dissipation film layer and the adhesive layer 40 during the manufacturing process, that is, the thickness of the adhesive layer 40 located in the curved surface area 20 along the direction perpendicular to the light emitting surface of the display panel 30 is increased and then decreased, that is, the thickness d1 of the adhesive layer 40 located in the curved surface area 20 is greater than d 2.
It should be noted that the embodiment shown in fig. 3 only schematically illustrates the size relationship between d1 and d2, and does not represent the actual size.
In addition, the thickness of the adhesive layer 40 located in the curved surface area 20 along the direction perpendicular to the light emitting surface of the display panel 30 is increased and then reduced, so that the area with larger thickness of the adhesive layer 40 can be used as a reinforcing structure, when the curved surface area 20 of the display panel 30 receives external impact force, the reinforcing structure can buffer the external impact force, reduce the impact force received by the film layer and the circuit in the display panel 30, and prevent the damage of the external impact force to the film layer in the display panel 30, thereby reducing the influence of the external impact force to the display panel 30, improving the impact resistance of the display panel 30, and not affecting the stability of the display panel 30 in the curved surface area 20.
Fig. 4 is another cross-sectional view of the display module along A-A' in the embodiment shown in fig. 1, fig. 5 is a top view of the display module provided in the embodiment, fig. 6 is another top view of the display module provided in the embodiment, please refer to fig. 4-6, in which the air bubble guiding-out layer 70 multiplexes the heat dissipation layer 50 in an alternative embodiment of the present application;
the heat dissipation layer 50 includes a plurality of air vents 51, the air vents 51 are located in the curved surface area 20, and the air vents 51 penetrate through the heat dissipation layer 50 along the curvature radius direction of the curved surface area.
Specifically, as shown in fig. 4 to 6, in the present embodiment, the air bubble guiding layer 70 multiplexes the heat dissipation layer 50, a plurality of air vents 51 are disposed in the curved surface area 20 of the heat dissipation layer 50, and the air vents 51 penetrate the heat dissipation layer 50 in the direction of the curvature radius of the curved surface area; optionally, the air vents 51 in the heat dissipation layer 50 are uniformly arranged in the curved surface area 20, and of course, the air vents 51 in the heat dissipation layer 50 are unevenly distributed in the curved surface area 20; alternatively, the size of the air vent 51 may be designed differently according to the actual requirement, which is not limited herein; by arranging the air vent 51 in the heat dissipation layer 50, air bubbles generated in the bonding process of the heat dissipation layer 50 and the adhesive layer 40 can be effectively eliminated, and the yield of products is improved.
It should be noted that, the shape of the cross section of the vent hole 51 includes, but is not limited to, a circle, an ellipse, a circular bar, a diamond, a rectangle or a polygon, wherein the vent hole 51 is preferably shaped such that its edge is at least partially curved and has no tip, for example, a circle, an ellipse, a circular bar, etc., because the curve has a better transition effect on stress and thus can avoid stress concentration, and no tip can also better avoid stress concentration; in addition, it should be noted that, along the first direction D1, the distance between two rows of exhaust holes of the adjacent sheet does not represent an actual distance, and along the second direction D2, the distance between two rows of exhaust holes does not represent an actual distance, and in an actual manufacturing process, the distance may be determined according to the size of the curved surface area.
It should be noted that, the embodiment shown in fig. 4 and 5 only schematically illustrates that the curved surface area 20 is provided with 4 rows of the air vents 51, alternatively, 2 rows of the air vents 51,3 may be provided with the air vents 51 or more according to actual needs, and the present application is not limited herein.
With continued reference to fig. 5, in an alternative embodiment of the present application, the plurality of exhaust holes 51 are arranged in an array along a first direction D1, and the first direction D1 is parallel to an edge of the display module.
Specifically, as shown in fig. 5, in the present embodiment, the plurality of exhaust holes 51 are arranged in an array along the first direction D1, and the first direction D1 is parallel to the edge of the display module, so that the plurality of exhaust holes 51 arranged in an array can save the manufacturing process and is easy to manufacture; optionally, as shown in fig. 6, in the first direction D1, the density of the air holes 51 located in the middle of the curved surface area 20 is greater, and the density of the air holes 51 located in the edge of the curved surface area 20 is smaller, so that air bubbles in the curved surface area 20 can be most effectively removed; alternatively, the exhaust holes 51 may be arranged in a plurality of columns along the second direction D2, and the present application is not limited thereto, wherein the first direction D1 and the second direction D2 intersect, and alternatively, the first direction D1 and the second direction D2 are perpendicular.
It should be noted that, fig. 7 is a top view of another display module provided in this embodiment, and please refer to fig. 7, when the curved surface area 20 is provided with multiple rows of exhaust holes 51, the exhaust holes 51 of two adjacent rows may be alternately arranged, so that bubbles in the curved surface area 20 may be effectively exhausted, and the yield of products may be improved.
Fig. 8 is another cross-sectional view of the display module of the embodiment shown in fig. 1 along A-A', fig. 9 is another top view of the display module provided in the embodiment, fig. 10 is another top view of the display module provided in the embodiment, please refer to fig. 8-10, in which the air bubble guiding layer 70 is multiplexed with the adhesive layer 40 in an alternative embodiment of the present application;
the adhesive layer 40 includes a plurality of grooves 42, the grooves 42 extend along the second direction D2, are arranged along the first direction D1, and the grooves 42 are located in the curved surface area 20; the first direction D1 is parallel to the edge of the display module, and the second direction D2 intersects the first direction D1.
Specifically, as shown in fig. 8 to 10, in the embodiment, the bubble guiding layer 70 multiplexes the adhesive layer 40, a plurality of grooves 42 are formed on one side of the adhesive layer 40 near the heat dissipation layer 50, the grooves 42 are located in the curved surface area 20, the grooves 42 are arranged along a second direction D2, extend along a first direction D1, the first direction D1 is parallel to the edge of the display module, and the second direction D2 intersects the first direction D1; alternatively, the grooves 42 do not need to penetrate the glue layer 40 along the direction perpendicular to the light emitting surface of the display panel 30, and the grooves 42 may also penetrate the glue layer 40, which is not limited herein; alternatively, the width of the slot 42 along the first direction D1 may be determined according to actual manufacturing requirements, and the present application is not limited in detail herein; by arranging the groove 42 on the adhesive layer 40, a bubble discharge path can be formed, which is beneficial to discharging bubbles generated in the process of attaching the heat dissipation layer 50 and the adhesive layer 40, and improving the product yield.
It should be noted that, in the embodiment shown in fig. 8 to 10, only the cross section of the groove 42 is schematically shown as a rectangular groove, alternatively, a cylindrical groove, an elliptical cylindrical groove, a prismatic groove, etc., and the present application is not limited herein, and the shape of the groove 42 is only shown in fig. 8 to 10, and does not represent the actual size of the groove 42.
With continued reference to fig. 8-10, in an alternative embodiment of the present application, the slot 42 extends through the edge of the display module along the second direction D2.
Specifically, as shown in fig. 8 to 10, in the present embodiment, along the second direction D2, the slot 42 penetrates through the edge of the display module; it can be understood that the groove 42 is located in the curved surface area 20, and can directly penetrate through the edge of the adhesive layer 40 along the direction of the planar area 10 pointing to the curved surface area 20, so that in the attaching process, the air bubbles generated between the heat dissipation layer 50 and the adhesive layer 40 can be directly discharged out of the display module 100 through the groove 42, thereby avoiding peeling or cracking between the film layers and improving the yield of the product.
With continued reference to fig. 8-10, in an alternative embodiment of the present application, the slots 42 are arranged in an array along the first direction D1.
Specifically, as shown in fig. 8 to 10, in the present embodiment, the grooves 42 are arranged in an array along the first direction D1, and it can be understood that the grooves 42 are uniformly arranged along the first direction D1, so that the process of the grooves 42 can be simplified and the process time can be saved; optionally, the density of the grooves 42 in the middle area of the curved surface area 20 is greater than the density of the grooves 42 in the two side areas along the first direction D1, so that bubbles can be more effectively removed, and the yield of products can be improved.
With continued reference to fig. 3, in an alternative embodiment of the present application, the heat dissipation layer 50 is made of copper foil.
Specifically, as shown in fig. 3, in the present embodiment, the material of the heat dissipation layer 50 is copper foil, and the copper foil is adopted to enable the heat dissipation layer 50 to have the heat dissipation and electromagnetic shielding effects, and optionally, the material of the heat dissipation layer 50 may be stainless steel.
In an alternative embodiment of the present application, the edges of the display module are bent towards the side facing away from the light emitting surface to form the curved surface area 20.
Specifically, referring to fig. 2, in the present embodiment, the edge of the display module is bent towards the side facing away from the light-emitting surface to form a curved surface area 20; alternatively, the opposite edges of the display module are bent towards the side away from the light emitting surface to form the curved surface area 20, or the four edges of the display module are bent to form the curved surface area 20, that is, the number of the curved surface areas 20 may be two or four.
Based on the same inventive concept, the present application further provides a display device 200, and fig. 11 is a top view of the display device provided by the embodiment of the present application, where the display device 200 includes a display module 100, and the display module 100 is the display module 100 provided by the embodiment of the present application. In the display device 200 of the present application, the bubble leading-out layer 70 is provided, so that bubbles between the film layers can be effectively led out, and the peeling or cracking phenomenon of the film layers in the display module 100 can be improved.
It should be noted that, in the embodiment of the display device 200 provided in the embodiment of the present application, reference may be made to the embodiment of the display module 100 described above, and the repetition is not repeated. The device provided by the application can be embodied as: any product or component with realistic functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
According to the above embodiments, the beneficial effects of the application are as follows:
the display module and the display device provided by the application comprise a cover plate, a display panel, a glue layer and a heat dissipation layer which are arranged in a stacked manner, wherein the glue layer and the heat dissipation layer are both positioned on one side of the display panel, which is away from the light-emitting surface, and the glue layer is positioned between the display panel and the heat dissipation layer, and the cover plate is positioned on one side of the display panel, which is close to the light-emitting surface; the bubble guiding layer is multiplexed with the adhesive layer, and is used for guiding out bubbles among the film layers by structurally designing the adhesive layer positioned in the curved surface area; the bubble leading-out layer is arranged on one side of the display panel, which is away from the light-emitting surface, and the bubble leading-out layer can effectively improve the peeling and cracking problems of the film layer in the curved surface area of the display module and improve the quality of the display module.
While the foregoing description illustrates and describes the preferred embodiments of the present application, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of numerous other combinations, modifications and environments and is capable of changes or modifications within the scope of the inventive concept as described herein, either as a result of the foregoing teachings or as a result of the knowledge or technology in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the application are intended to be within the scope of the appended claims.
Claims (10)
1. A display module, comprising: a planar region and a curved region at least partially surrounding the planar region;
the display module comprises a display panel, an adhesive layer and a heat dissipation layer which are arranged in a stacked mode, wherein the adhesive layer and the heat dissipation layer are both positioned on one side, away from the light emitting surface, of the display panel, and the adhesive layer is positioned between the display panel and the heat dissipation layer;
the bubble leading-out layer is positioned at one side of the display panel, which is away from the light-emitting surface, and is used for discharging bubbles between the film layers;
the bubble leading-out layer multiplexes the adhesive layer or the heat dissipation layer;
the thickness of the adhesive layer in the curved surface area along the curvature radius direction of the curved surface area is different.
2. The display module of claim 1, wherein the thickness of the glue layer in the curved surface area along the radius of curvature of the curved surface area increases and decreases along the direction in which the planar area points to the curved surface area.
3. The display module of claim 1, wherein the bubble derivation layer multiplexes the heat dissipation layer;
the heat dissipation layer comprises a plurality of exhaust holes, the exhaust holes are positioned in the curved surface area and penetrate through the heat dissipation layer along the direction of the curvature radius of the curved surface area.
4. A display module according to claim 3, wherein a plurality of the vent holes are arranged in an array along a first direction, the first direction being parallel to an edge of the display module.
5. The display module of claim 1, wherein the bubble-inducing layer multiplexes the glue layer;
the adhesive layer comprises a plurality of grooves, the grooves extend along a second direction and are distributed along a first direction, and the grooves are positioned in the curved surface area; the first direction is parallel to the edge of the display module, and the second direction intersects with the first direction.
6. The display module of claim 5, wherein the slot extends through an edge of the display module in the second direction.
7. The display module of claim 5, wherein the slots are arrayed along a first direction.
8. The display module of claim 1, wherein the heat dissipation layer is made of copper foil.
9. The display module assembly of claim 1, wherein edges of the display module assembly are bent toward a side facing away from the light-emitting surface to form the curved surface region.
10. A display device comprising a display module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458715.8A CN114284449B (en) | 2021-12-02 | 2021-12-02 | Display module and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111458715.8A CN114284449B (en) | 2021-12-02 | 2021-12-02 | Display module and display device |
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| Publication Number | Publication Date |
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| CN114284449A CN114284449A (en) | 2022-04-05 |
| CN114284449B true CN114284449B (en) | 2023-11-24 |
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| CN202111458715.8A Active CN114284449B (en) | 2021-12-02 | 2021-12-02 | Display module and display device |
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| CN115064079B (en) * | 2022-07-08 | 2023-12-01 | 武汉华星光电半导体显示技术有限公司 | Curved surface display device and preparation method thereof |
| CN115311959A (en) * | 2022-08-19 | 2022-11-08 | 厦门天马显示科技有限公司 | Display device and preparation method thereof |
| CN115731791A (en) * | 2022-09-07 | 2023-03-03 | 京东方科技集团股份有限公司 | Display device |
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| US9439315B2 (en) * | 2012-06-29 | 2016-09-06 | Samsung Display Co., Ltd. | Display device, and method and apparatus for manufacturing the same |
| KR20200078243A (en) * | 2018-12-21 | 2020-07-01 | 엘지디스플레이 주식회사 | Flexible display device and apparatus for manufacturing the same, and structure |
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| CN113077711A (en) * | 2020-01-03 | 2021-07-06 | 三星显示有限公司 | Window for display device and method of manufacturing the same |
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