CN114284449A - Display module and display device - Google Patents
Display module and display device Download PDFInfo
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- CN114284449A CN114284449A CN202111458715.8A CN202111458715A CN114284449A CN 114284449 A CN114284449 A CN 114284449A CN 202111458715 A CN202111458715 A CN 202111458715A CN 114284449 A CN114284449 A CN 114284449A
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- display panel
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- 239000010410 layer Substances 0.000 claims abstract description 119
- 230000017525 heat dissipation Effects 0.000 claims abstract description 57
- 239000012790 adhesive layer Substances 0.000 claims abstract description 55
- 238000007599 discharging Methods 0.000 claims abstract description 5
- 239000003292 glue Substances 0.000 claims description 19
- 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 3
- 238000009795 derivation Methods 0.000 abstract description 7
- 235000009537 plain noodles Nutrition 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 description 11
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- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
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- 230000002829 reductive effect Effects 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 229910001220 stainless steel Inorganic materials 0.000 description 1
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Images
Abstract
The application discloses display module assembly and display device relates to and shows technical field, includes: a planar area and a curved area at least partially surrounding the planar area; 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 emergent surface, of the display panel, and the adhesive layer is positioned between the display panel and the heat dissipation layer; the bubble derivation layer is located the one side that display panel deviates from the play plain noodles, and the bubble derivation layer is used for discharging the bubble between the rete. According to the application, the bubble leading-out layer is arranged and used for leading out bubbles among the film layers by structurally designing the adhesive layer positioned in the curved surface area; the bubble is derived the layer and is located the one side that display panel deviates from the play plain noodles, and the setting on bubble derivation layer can effectively improve the rete in display module curved surface district and peel off and the rupture problem, improves the display module assembly quality.
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 an Organic Light Emitting display panel (Organic Light Emitting Diode) technology, and a curved screen mobile phone terminal with a bent cover plate edge appears on the basis of the flexible display panel technology.
For the curved screen, when the bending angle of the left curved surface and the right curved surface of the glass cover plate is larger, the effect of front view of left and right frameless surfaces is better, and when the bending angle of the left and right curved surfaces is larger than 90°And then, the invisible left and right frames in the front view can be realized. However, when the curved surface of the glass cover plate is bent at a larger angle, bubbles are likely to be generated between the films attached to the curved surface region, which causes undesirable phenomena such as peeling (peeling) between the films and cracking (crack) of the films.
Disclosure of Invention
In view of this, the application provides a display module and display device, derive the layer through setting up the bubble, can effectually derive the bubble of rete in the display module, improve the quality of display module.
In order to solve the technical problem, the following technical scheme is adopted:
in a first aspect, the present application provides a display module, including: a planar area and a curved area at least partially surrounding the planar area;
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 emergent surface, of the display panel, and the adhesive layer is positioned between the display panel and the heat dissipation layer;
the bubble derivation layer is located the one side that display panel deviates from the play plain noodles, and the bubble derivation layer is used for discharging the bubble between the rete.
In a second aspect, the present application further provides a display device, which includes a display module, where the display module is the display module provided in the present application.
Compared with the prior art, the display module and the display device provided by the invention at least realize the following beneficial effects:
the display module and the display device comprise a cover plate, a display panel, a glue layer and a heat dissipation layer which are arranged in a stacked mode, wherein the glue layer and the heat dissipation layer are located on one side, away from a light emergent face, of the display panel, the glue layer is located between the display panel and the heat dissipation layer, and the cover plate is located on one side, close to the light emergent face, of the display panel; the device is characterized by also comprising a bubble leading-out layer, wherein the bubble leading-out layer is used for multiplexing an adhesive layer and is used for leading out bubbles among all film layers by structurally designing the adhesive layer positioned in the curved surface area; the bubble is derived the layer and is located the one side that display panel deviates from the play plain noodles, and the setting on bubble derivation layer can effectively improve the rete in display module curved surface district and peel off and the rupture problem, improves the display module assembly quality.
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 application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:
fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of an embodiment of the present disclosure;
FIG. 3 is a cross-sectional view of the display module taken along line A-A' in the embodiment of FIG. 1;
FIG. 4 is another cross-sectional view of the display module of the embodiment of FIG. 1 along A-A';
fig. 5 is a top view of the display module provided in the present embodiment;
fig. 6 is another top view of the display module provided in this embodiment;
fig. 7 is another top view of the display module provided in this embodiment;
FIG. 8 is another cross-sectional view of the display module of the embodiment of FIG. 1 taken along line A-A';
fig. 9 is another top view of the display module provided in this embodiment;
fig. 10 is another top view of the display module according to the embodiment;
fig. 11 is a top view of a display device according to an embodiment of the invention.
Detailed Description
As used in the specification and in the claims, certain terms are used to refer to particular components. As one skilled in the art will appreciate, manufacturers may refer to a component by different names. This specification and claims do not intend to distinguish between components that differ in name but not function. In the following description and in the claims, the terms "include" and "comprise" are used in an open-ended fashion, and thus should be interpreted to mean "include, but not limited to. "substantially" means within an acceptable error range, within which a person skilled in the art can solve the technical problem to substantially achieve the technical result. Furthermore, the term "coupled" is intended to encompass any direct or indirect electrical coupling. Thus, if a first device couples to a second device, that connection may be through a direct electrical coupling or through an indirect electrical coupling via other devices and couplings. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims. The same parts between the embodiments are not described in detail.
The following detailed description is to be read in connection with the drawings and the detailed description.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present disclosure, fig. 2 is another schematic structural diagram according to an embodiment of the present disclosure, fig. 3 is a cross-sectional view of the display module along a-a' of the embodiment of fig. 1, please refer to fig. 1 to 3, and a display module 100 according to the present disclosure includes: a planar area 10 and a curved area 20 at least partially surrounding the planar area 10;
the display module 100 includes a display panel 30, an adhesive layer 40 and a heat dissipation layer 50, which are stacked, wherein the adhesive layer 40 and the heat dissipation layer 50 are both located on a side of the display panel 30 away from the light emitting surface S, and the adhesive layer 40 is located between the display panel 30 and the heat dissipation layer 50;
the bubble guiding layer 70 is located on a side of the display panel 30 away from the light emitting surface, and the bubble guiding layer 70 is used for discharging bubbles between the film layers.
Specifically, please refer to fig. 1 to fig. 3, the display module 100 in the present embodiment includes a plane area and a curved area 20, the curved area 20 at least partially surrounds the plane area 10, both the curved area 20 and the plane area 10 are used for displaying images, of course, the display module 100 further includes a non-display area, the non-display area is not used for displaying images, and the non-display area at least partially surrounds the plane area or the curved area (not shown in the drawings); the display module 100 further includes a display panel 30, one side of the display panel 30 is provided with an adhesive layer 40 and a heat dissipation layer 50, the adhesive layer 40 is used for bonding the display panel 30 and the adhesive layer 40 together, the heat dissipation layer 50 has the functions of leveling, heat dissipation and water and oxygen isolation, and optionally, the heat dissipation film layer is a copper foil; optionally, a cover plate 60 is disposed on the other side of the display panel 30, the cover plate 60 is used for protecting the display panel 30 and is light-permeable, and optionally, the cover plate 60 may be a glass cover plate; the cover plate 60 is located on a side of the display panel 30 close to the light exit surface, the adhesive layer 40 and the heat dissipation layer 50 are located on a side of the display panel 30 away from the light exit 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 the embodiment includes the curved surface region 20, and correspondingly, the cover plate 60, the display panel 30, the glue layer 40 and the heat dissipation layer 50 all have the curved surface region 20; the display panel 30 is a flexible display panel, the flexible display panel gradually gets more and more attention with good user experience, and the flexible display panel is not only lighter and thinner in volume, but also capable of correspondingly reducing power consumption; meanwhile, the flexible display panel can be bent, so that the large-size display requirement and the portability are not contradictory; in addition, the display panel 30 of the present application adopts an Organic Light Emitting display panel (Organic Light Emitting Diode), which has advantages of a wide color gamut, a high contrast ratio, energy saving, and being foldable.
In the related technology, on one hand, in the process of manufacturing the display module, the heat dissipation layer is firstly adsorbed by the jig and moved to a proper position for attachment, vacuum adsorption is released, the roller on the jig moves downwards, the roller slides leftwards and rightwards, so that the heat dissipation layer is adhered to the adhesive layer on the display panel, and because the heat dissipation layer is under the action of the free falling body and the roller, the area of the heat dissipation layer in the middle and the area of the edge are firstly contacted with the adhesive layer, on the basis, the roller moves leftwards and rightwards, so that partial bubbles cannot be discharged, so that the bubbles in the edge area in the display module cannot be discharged, and further all the film layers can be peeled off or split; on the other hand, the heat dissipation layer has high hardness and young's modulus, and the conformability is not good enough, so that a larger bonding pressure is required for bonding the heat dissipation layer, which further aggravates the peeling and cracking between the films.
In view of this, please refer to fig. 1 to fig. 3, in the embodiment, the bubble leading-out layer 70 is disposed, and the bubble leading-out layer 70 is combined with the adhesive layer 40, and is used for leading out bubbles between the film layers by performing a structural design on the adhesive layer 40 located in the curved surface region 20; the bubble leading-out layer 70 is located on the side of the display panel 30 departing from the light-emitting surface, and the arrangement of the bubble leading-out layer 70 can effectively solve the problems of film peeling and cracking of the curved surface area 20 of the display module 100, and improve the quality of the display module.
It should be noted that, the curved display module 100 in the embodiment of the present invention may further include any other necessary structures as needed, for example: a transparent optical adhesive layer (OCA) for adhering the cover plate 60 to the structure below the cover plate (e.g., the display panel 30); a circular Polarizer (POL) disposed on a surface of the display panel 30 for preventing a reflection influence of external ambient light on the display module 100; a Back plate film (BP) disposed on a rear surface of the display panel 30 for protecting and supporting the display panel 30. Since fig. 3 only illustrates the position relationship between the films, the curved portions on both sides of some of the films are not shown, and the curved display module 100 includes a cover plate 60, a transparent optical adhesive layer 40, a circular polarizer, a display panel 30, a back plate film, an adhesive layer 40, and a heat dissipation layer 50, which are sequentially stacked from top to bottom.
It should be noted that the embodiment shown in fig. 1 only schematically shows the position relationship between the curved surface area 20 and the planar area 10, and does not represent the actual sizes 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 a schematic diagram of 2 curved surface regions 20, optionally, 4 curved surface regions 20 may also be provided in the present application, and the number is determined according to the requirement during actual manufacturing; the embodiment shown in fig. 3 only schematically shows the position relationship of the film layers, wherein the position relationship does not represent the actual manufacturing thickness of the cover plate 60, the display panel 30, the adhesive layer 40 and the heat dissipation layer 50, and does not represent the size of the curvature radius of the curved region 10, which may be determined according to the actual manufacturing requirement.
With continued reference to FIG. 3, in an alternative embodiment of the present application, the bubble-guiding layer 70 is formed by a plurality of adhesive layers 40;
the thickness of the layer of glue 40 in the curved surface region 20 varies along the direction of the radius of curvature of the curved surface region 20.
Specifically, as shown in fig. 3, in the present embodiment, the air bubble guiding layer 70 is formed by multiplexing the adhesive layer 40, optionally, the material of the adhesive layer 40 is spa, the thickness of the adhesive layer 40 in the curved surface region 20 along the direction of the curvature radius of the curved surface region 20 is different, and the thickness of the adhesive layer 40 in the planar region 10 along the direction perpendicular to the light-emitting surface of the display panel 30 is the same; so, at the in-process of the laminating of display module assembly 100 rete, according to the rolling in-process of the gyro wheel of tool, the process of the heat dissipation layer 50 and the contact of glue film 40 is in proper order, adopts the mode that glue film 40 thickness is different, is favorable to discharging the bubble, improves the yield of product.
With continued reference to fig. 3, in an alternative embodiment of the present application, in the direction from the planar area 10 to the curved area 20, the thickness of the adhesive layer 40 in the curved area 20 along the direction of the curvature radius of the curved area 20 increases first and then decreases.
Specifically, as shown in fig. 3, in the present embodiment, along the direction in which the planar region 10 points to the curved region 20, the thickness of the adhesive layer 40 located in the curved region 20 along the direction of the curvature radius of the curved region 20 is different, optionally, the thickness of the adhesive layer 40 may be defined according to the structure of the curved region 20 and the curvature radius of the curved region 20, and the thickness of the adhesive layer 40 may also be defined according to the contact sequence of the heat dissipation film layer and the different regions of the adhesive layer 40 in the manufacturing process, that is, the thickness of the adhesive layer 40 located in the curved region 20 along the direction perpendicular to the light emitting surface of the display panel 30 increases first and then decreases, that is, the thickness d1 of the adhesive layer 40 located in the curved region 20 is greater than d2, it can be understood that the thickness change of the adhesive layer 40 located in the curved region 20 follows the change of the curvature radius of the curved region 20, and by changing the thickness of the adhesive layer 40 located in the curved region 20, the heat dissipation layer 50 is prevented from being attached, one end of the adhesive layer 40 away from the planar region 10 contacts the adhesive layer 40 located in the curved region 20 first, so that the bubbles generated in the curved region 20 cannot be discharged, and the film layer is peeled or broken.
It should be noted that the embodiment shown in fig. 3 only schematically shows the size relationship between d1 and d2, and does not represent actual dimensions.
In addition, the thickness of the glue layer 40 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, so that the area with larger thickness of the glue layer 40 can be used as a reinforcing structure, when the curved surface area 20 of the display panel 30 is subjected to external impact force, the reinforcing structure can buffer the external impact force, the impact force applied to the film layer and the circuit in the display panel 30 is reduced, the damage of the external impact force to the film layer in the display panel 30 is prevented, the influence of the external impact force on the display panel 30 is reduced, the impact resistance of the display panel 30 is improved, and the stability of the display panel 30 in the curved surface area 20 is not affected.
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 an alternative embodiment of the present application, the bubble guiding layer 70 is multiplexed with the heat dissipation layer 50;
the heat dissipation layer 50 includes a plurality of vent holes 51, the vent holes 51 are located in the curved surface area 20, and the vent holes 51 penetrate through the heat dissipation layer 50 along the direction of the curvature radius of the curved surface area.
Specifically, as shown in fig. 4 to fig. 6, in the present embodiment, the bubble guiding layer 70 is reused with 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 through the heat dissipation layer 50 in the direction of the curvature radius of the curved surface area; optionally, the exhaust holes 51 in the heat dissipation layer 50 are uniformly distributed in the curved surface region 20, and of course, the exhaust holes 51 in the heat dissipation layer 50 are non-uniformly distributed in the curved surface region 20; optionally, the size of the exhaust hole 51 may also be designed differently according to actual requirements, and the present application is not limited herein; through set up exhaust hole 51 in heat dissipation layer 50, can effectually get rid of the bubble that heat dissipation layer 50 and glue film 40 laminating in-process produced, improve the yield of product.
It should be noted that the shape of the cross section of the vent hole 51 includes, but is not limited to, circular, elliptical, circular strip, diamond, rectangular or polygonal, wherein the shape of the vent hole 51 is preferably curved at least partially at its edge and has no tip, such as circular, elliptical, circular strip, etc., because the curve has a better transition effect on the stress and thus can avoid the stress concentration, and the tip-free shape can also better avoid the stress concentration; in addition, it should be noted that, along the first direction D1, the distance between two rows of exhaust holes of adjacent sheets does not represent the actual distance, and along the second direction D2, the distance between two rows of exhaust holes does not represent the actual distance, and during the 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 fig. 5 only schematically illustrates that the curved surface area 20 is provided with 4 rows of exhaust holes 51, and optionally, 2 rows of exhaust holes 51, 3 rows of exhaust holes 51 or more may also be provided according to actual requirements, and the application is not limited herein.
Referring 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 the 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, along the first direction D1, the density of the vent holes 51 located in the middle of the curved surface region 20 is greater, and the density of the vent holes 51 located at the edge of the curved surface region 20 is less, so that the air bubbles in the curved surface region 20 can be removed most effectively; alternatively, the exhaust holes 51 may be arranged in a plurality of rows along the second direction D2, which is not limited herein, wherein the first direction D1 and the second direction D2 intersect, and the first direction D1 and the second direction D2 are perpendicular.
It should be noted that fig. 7 is another top view of the display module provided in this embodiment, please refer to fig. 7, when the curved surface region 20 is provided with a plurality of rows of exhaust holes 51, two adjacent rows of exhaust holes 51 may be alternately arranged, so that bubbles in the curved surface region 20 can be effectively exhausted, and the yield of the product is improved.
Fig. 8 is another cross-sectional view of the display module along a-a' in the embodiment shown in fig. 1, 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 an alternative embodiment of the present application, the bubble guiding layer 70 is further multiplexed with the adhesive layer 40;
the glue layer 40 includes a plurality of grooves 42, the grooves 42 extend along the second direction D2 and are arranged along the first direction D1, and the grooves 42 are located in the curved surface region 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 present embodiment, the bubble guiding layer 70 is further combined with the adhesive layer 40, a plurality of grooves 42 are formed on one side of the adhesive layer 40 close to the heat dissipation layer 50, the grooves 42 are located in the curved region 20, the grooves 42 are arranged along a second direction D2 and 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; optionally, the groove 42 does not need to penetrate through the adhesive layer 40 along a direction perpendicular to the light emitting surface of the display panel 30, and the groove 42 may also penetrate through the adhesive 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 application is not limited in detail herein; by arranging the groove 42 on the adhesive layer 40, a bubble discharge path can be formed, bubbles generated in the process of attaching the heat dissipation layer 50 and the adhesive layer 40 can be discharged, and the product yield is improved.
It should be noted that the cross section of the groove 42 in the embodiment shown in fig. 8 to 10 is only schematically shown as a rectangular groove, alternatively, a cylindrical groove, an elliptic cylindrical groove, a prismatic groove, and the like, and the present application is not limited thereto, and the shape of the groove 42 is only illustrated in fig. 8 to 10, and does not represent the actual size of the groove 42.
Referring to fig. 8 to 10, in an alternative embodiment of the present application, the groove 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, the groove 42 penetrates through the edge of the display module along the second direction D2; it can be understood that the groove 42 is located in the curved surface region 20, and can directly penetrate through the edge of the adhesive layer 40 along the direction that the planar region 10 points to the curved surface region 20, so that bubbles generated between the heat dissipation layer 50 and the adhesive layer 40 can directly exit the display module 100 through the groove 42 in the attaching process, thereby preventing peeling or cracking between the film layers and improving the yield of products.
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 slots 42 are arranged in an array along the first direction D1, it can also be understood that the slots 42 are arranged uniformly along the first direction D1, so as to simplify the manufacturing process of the slots 42 and save the manufacturing time; optionally, in the first direction D1, 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, so that the bubbles can be removed more effectively, and the yield of the product can be improved.
Referring 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 heat dissipation layer 50 is made of copper foil, and the copper foil is used to enable the heat dissipation layer 50 to have the functions of heat dissipation and electromagnetic shielding, and optionally, the heat dissipation layer 50 may also be made of stainless steel.
In an alternative embodiment of the present application, the edges of the display module are bent towards the side away from the light emitting surface to form a curved surface region 20.
Specifically, as shown in fig. 2, in the present embodiment, the edge of the display module is bent toward the side away from the light exit surface to form a curved surface region 20; optionally, the mutually opposite edges of the display module are bent towards the side away from the light exit surface to form the curved surface region 20, and the four edges of the display module are also bent to form the curved surface regions 20, that is, the number of the curved surface regions 20 may be two or four.
Based on the same inventive concept, the present invention further provides a display device 200, and fig. 11 is a top view of the display device according to the embodiment of the present invention, wherein the display device 200 includes a display module 100, and the display module 100 is the display module 100 according to the embodiment of the present invention. In the display device 200 of the present invention, the bubble guiding layer 70 is disposed to effectively guide bubbles between the layers, thereby improving the peeling or cracking of the layers in the display module 100.
It should be noted that, in the embodiment of the display device 200 provided in the present application, reference may be made to the embodiment of the display module 100, and repeated descriptions are omitted. The apparatus provided herein may be embodied as: any product or component with practical 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 embodiments, the application has the following beneficial effects:
the display module and the display device comprise a cover plate, a display panel, a glue layer and a heat dissipation layer which are arranged in a stacked mode, wherein the glue layer and the heat dissipation layer are located on one side, away from a light emergent face, of the display panel, the glue layer is located between the display panel and the heat dissipation layer, and the cover plate is located on one side, close to the light emergent face, of the display panel; the device is characterized by also comprising a bubble leading-out layer, wherein the bubble leading-out layer is used for multiplexing an adhesive layer and is used for leading out bubbles among all film layers by structurally designing the adhesive layer positioned in the curved surface area; the bubble is derived the layer and is located the one side that display panel deviates from the play plain noodles, and the setting on bubble derivation layer can effectively improve the rete in display module curved surface district and peel off and the rupture problem, improves the display module assembly quality.
The foregoing description shows and describes several preferred embodiments of the present application, but as aforementioned, it is to be understood that the application is not limited to the forms disclosed herein, but is not to be construed as excluding other embodiments and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the application, which is to be protected by the claims appended hereto.
Claims (11)
1. A display module, comprising: a planar area and a curved area at least partially surrounding the planar area;
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;
and the bubble leading-out layer is positioned on one side of the display panel, which deviates from the light-emitting surface, and is used for discharging bubbles between the film layers.
2. The display module of claim 1, wherein the bubble-guiding layer multiplexes the glue layer;
the thickness of the glue layer in the curved surface area along the direction of the curvature radius of the curved surface area is different.
3. The display module according to claim 2, wherein along a direction in which the planar area points to the curved area, a thickness of the glue layer located in the curved area in a direction of a radius of curvature of the curved area increases first and then decreases.
4. The display module of claim 1, wherein the bubble-guiding layer multiplexes the heat-dissipating layer;
the heat dissipation layer comprises a plurality of exhaust holes, the exhaust holes are located in the curved surface area, and the exhaust holes penetrate through the heat dissipation layer along the direction of the curvature radius of the curved surface area.
5. The display module of claim 4, wherein the plurality of vent holes are arranged in an array along a first direction, the first direction being parallel to an edge of the display module.
6. The display module of claim 1, wherein the bubble-guiding layer multiplexes the glue layer;
the glue layer comprises a plurality of grooves, the grooves extend along the second direction and are distributed along the 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 is intersected with the first direction.
7. The display module of claim 6, wherein the slot extends through an edge of the display module in the second direction.
8. The display module of claim 6, wherein the grooves are arranged in an array along a first direction.
9. The display module assembly of claim 1, wherein the heat dissipation layer is made of copper foil.
10. The display module according to claim 1, wherein the edges of the display module are bent toward a side away from the light exit surface to form the curved surface region.
11. A display device comprising the display module according to any one of claims 1 to 10.
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 |
Applications Claiming Priority (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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| 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 |
| WO2024051396A1 (en) * | 2022-09-07 | 2024-03-14 | 京东方科技集团股份有限公司 | Display device |
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