CN114447254B - Display module, manufacturing method and display device - Google Patents
Display module, manufacturing method and display device Download PDFInfo
- Publication number
- CN114447254B CN114447254B CN202210149703.5A CN202210149703A CN114447254B CN 114447254 B CN114447254 B CN 114447254B CN 202210149703 A CN202210149703 A CN 202210149703A CN 114447254 B CN114447254 B CN 114447254B
- Authority
- CN
- China
- Prior art keywords
- display panel
- layer
- display module
- composite film
- display
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 239000010410 layer Substances 0.000 claims abstract description 97
- 239000002131 composite material Substances 0.000 claims abstract description 47
- 230000017525 heat dissipation Effects 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 32
- 239000012790 adhesive layer Substances 0.000 claims abstract description 18
- 239000004020 conductor Substances 0.000 claims description 28
- 238000004080 punching Methods 0.000 claims description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 13
- 229910002804 graphite Inorganic materials 0.000 claims description 13
- 239000010439 graphite Substances 0.000 claims description 13
- 239000006260 foam Substances 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000002390 adhesive tape Substances 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 10
- 230000003139 buffering effect Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 238000005452 bending Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- -1 feature Substances 0.000 description 3
- 238000000059 patterning Methods 0.000 description 3
- 229920000139 polyethylene terephthalate Polymers 0.000 description 3
- 239000005020 polyethylene terephthalate Substances 0.000 description 3
- 229920001621 AMOLED Polymers 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical group [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000007770 graphite material Substances 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 229920002120 photoresistant polymer Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000000956 alloy Chemical group 0.000 description 1
- 229910045601 alloy Chemical group 0.000 description 1
- 229910052782 aluminium Chemical group 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical group [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/844—Encapsulations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/87—Arrangements for heating or cooling
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
Landscapes
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The invention discloses a display module, a manufacturing method and a display device, wherein the display module comprises a display panel, and a first surface and a second surface which are oppositely arranged; the composite film comprises an adhesive layer, a buffer layer and a heat dissipation layer which are laminated from the near to the far direction from the display panel, wherein the buffer layer comprises a buffer body and a plurality of grooves arranged on one side of the buffer body close to the heat dissipation layer, and each groove is filled with a heat conduction material; the second surface is the light emitting side of the display panel. According to the embodiment of the application, the heat conduction material arranged in the grooves of the buffer layer is used for effectively reducing the unit area of the heat conduction material to improve the cohesive force of the unit area heat conduction material on the basis of ensuring the heat dissipation function, so that the problem that the composite film is easy to bulge during subsequent maintenance in the prior art can be solved, the manufacturing process of the composite film is simplified, and the manufacturing cost of the display module is saved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display module, a manufacturing method and a display device.
Background
Organic light emitting diode (organic light emitting diode, OLED) display modules are widely used in various display devices due to their advantages of self-luminescence, wide viewing angle, wide color gamut, foldability, and bendability.
In the prior art, an OLED display module generally includes a display panel and a composite film disposed on a side opposite to a light emitting side of the display panel. The composite film can play a role in buffering stress acting on the display panel and play a certain role in protecting the display panel. However, the composite film is liable to bulge during subsequent maintenance, thereby increasing maintenance cost.
Disclosure of Invention
In order to solve at least one of the above problems, a first embodiment of the present invention provides a display module, including:
a display panel including a first face and a second face disposed opposite to each other; and
a composite film disposed on the first side, wherein
The composite film comprises an adhesive layer, a buffer layer and a heat dissipation layer which are laminated from the near to the far direction of the display panel, wherein the buffer layer comprises a buffer body and a plurality of grooves formed in one side of the buffer body close to the heat dissipation layer, and each groove is filled with a heat conduction material;
the second surface is the light emitting side of the display panel.
In a specific embodiment, the slot is a via hole penetrating through the buffer layer;
or alternatively
The grooves are buried holes formed in the buffer layer.
In a specific embodiment, the front projection of the slot on the display panel is circular or polygonal.
In a specific embodiment, the orthographic projection of the slot on the display panel is a polygon, and the polygon comprises a chamfer, and the fillet radius of the chamfer is greater than or equal to 2mm.
In a specific embodiment, the buffer layer includes a plurality of slot groups, each slot group includes a plurality of slots arranged in an array, an orthographic projection of the slot group on the display panel is a circle, and an orthographic projection of the slot on the display panel is a circle or a polygon.
In a specific embodiment, the slot group includes 7 slots arranged at equal intervals.
In a specific embodiment, the buffer body is foam, and the thermally conductive material is graphite.
In a specific embodiment, the adhesive layer is double-sided tape;
and/or
The heat dissipation layer is made of metal.
A second embodiment of the invention provides a display device comprising a display module as claimed in any one of claims 1-8.
A third embodiment of the present invention provides a method for manufacturing the display module set according to the first embodiment, including:
punching holes on the buffer body material layer and filling heat conducting materials to form a buffer layer;
respectively attaching the adhesive layer, the buffer layer and the heat dissipation layer to form a composite film;
the composite film is attached to the first surface of the display panel through the adhesive layer, and the second surface of the display panel, which is arranged opposite to the first surface, is a light emitting side.
The beneficial effects of the invention are as follows:
the invention aims at the existing problems at present, and establishes a display module, a manufacturing method and a display device, wherein the display module comprises a display panel and a composite film which are sequentially laminated, and the composite film effectively reduces the unit area of the heat conducting material to improve the cohesive force of the heat conducting material in the unit area on the basis of ensuring the heat dissipation function through the heat conducting material arranged in a groove of a buffer layer, so that the problem that the composite film is easy to bulge during subsequent maintenance in the prior art can be solved, the manufacturing process of the composite film is simplified, and the manufacturing cost of the display module is saved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the invention;
FIGS. 2a-2b are schematic illustrations of a grooved structure of a composite membrane according to another embodiment of the invention;
FIG. 3 shows a schematic diagram of a slot of an array arrangement according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a display module according to an embodiment of the invention;
fig. 5 is a flowchart illustrating a method for manufacturing a display module according to an embodiment of the invention.
Detailed Description
In order to more clearly illustrate the present invention, the present invention will be further described with reference to preferred embodiments and the accompanying drawings. Like parts in the drawings are denoted by the same reference numerals. It is to be understood by persons skilled in the art that the following detailed description is illustrative and not restrictive, and that this invention is not limited to the details given herein.
It should be noted that, as used herein, "on … …", "formed on … …", and "disposed on … …" may mean that one layer is directly formed or disposed on another layer, or that one layer is indirectly formed or disposed on another layer, i.e., that other layers are present between the two layers. In this document, unless otherwise indicated, the term "in the same layer" is used to mean that two layers, components, members, elements, or portions may be formed by the same patterning process, and that the two layers, components, members, elements, or portions are generally formed of the same material. In this context, unless otherwise indicated, the expression "patterning process" generally includes the steps of coating of photoresist, exposure, development, etching, stripping of photoresist, and the like. The expression "one patterning process" means a process of forming a patterned layer, feature, component, etc. using a single mask.
In the production process of the OLED module product, a composite film is generally required to be attached to the surface of the opposite side of the light emergent side of the display panel, and in the production process, the display panel is limited by comprehensive factors such as equipment, process, personnel operation and the like, a certain proportion of bad products generally exist, and in order to reduce the production cost, the precision production management is sought, and the reworking repair operation is carried out on the bad products. When the display panel is disassembled and repaired, the composite film can generate a bulge phenomenon after the disassembly. The phenomenon seriously affects the repair of the display panel and the management and control of the product quality after the repair and the volume production, and the cost is also greatly increased.
In view of the above situation, the inventors have proposed through a great deal of research and experiments that the reason that the composite film is prone to bulge during subsequent maintenance is that the composite film comprises a graphite layer, and the graphite layer is light in weight, free of constraint, low in cohesion and low in relative constraint capability between molecules, and is prone to bulge due to insufficient cohesion under the influence of external force.
According to the above-mentioned problems and the reasons for the problems, as shown in fig. 1, an embodiment of the present invention provides a display module, including:
a display panel 10 including a first face and a second face disposed opposite to each other; and
a composite film 20 disposed on the first side, wherein
The composite film 20 comprises an adhesive layer 201, a buffer layer 202 and a heat dissipation layer 203 which are laminated from the near to the far direction of the display panel, wherein the buffer layer 202 comprises a buffer body 2021 and a plurality of grooves arranged on one side of the buffer body close to the heat dissipation layer, and each groove is filled with a heat conducting material 2022;
the second surface is the light emitting side of the display panel.
The display module in this embodiment includes a display panel and a composite film that are laminated in order, the composite film is disposed on a surface opposite to a light emitting side of the display panel, for heat dissipation and protection of the display panel. According to the composite film, the heat conduction material arranged in the grooves of the buffer layer is used, so that the unit area of the heat conduction material is effectively reduced on the basis of ensuring the heat dissipation function, the cohesive force of the heat conduction material in the unit area is improved, the problem that the composite film is easy to bulge during subsequent maintenance in the prior art can be solved, the manufacturing process of the composite film is simplified, and the manufacturing cost of the display module is saved.
In this embodiment, the bonding layer may be used to bond the buffer layer and the heat dissipation layer to the first surface of the display panel, where the first surface is a surface opposite to the light emitting side of the display panel, and the bonding layer has flexibility, so that the influence on the flexible design of the display module can be avoided. Optionally, the material of the adhesive layer comprises a hydrophobic material. The buffer body is foam, the heat conducting material is graphite, foam in the buffer layer not only can restrict graphite, but also can reduce the unit area of graphite, improve the cohesion of the unit area of graphite to improve the problem of graphite bulging, can play a role in buffering the stress acting on the display panel to protect the display panel, and can also be used for shading light to ensure that the display panel has a good display effect; the filled heat conducting material not only can play a role in reinforcing and protecting the display panel and avoid the display panel from being damaged by external force, but also can be used for enhancing the heat dissipation function of the heat dissipation layer or assisting the heat dissipation layer to dissipate heat. Optionally, the material of the buffer body is foam (foam), and the buffer body is dark, for example black. The heat dissipation layer is used for dissipating heat generated during the operation of the display panel, so as to avoid the damage of the display panel caused by higher heat of the display panel. Optionally, the material of the heat dissipation layer is a metal material, for example, one of copper and aluminum or an alloy structure thereof, so as to achieve a heat dissipation effect; the heat dissipation layer material of this embodiment is copper cu.
It is worth to say that the foam can play a role in buffering and shading. The graphite not only can play a role in reinforcement, but also can increase the reliability of the composite film. In other embodiments, the thermally conductive material may also be replaced with a Polyimide (PI)/or polyethylene terephthalate (polyethylene terephthalate, PET) material.
In a specific embodiment, the adhesive layer is double-sided tape; the pasting layer is attached to the surface of the display panel, which is far away from the light emitting side, the pasting layer can be mesh glue (Embo), the mesh glue has the function of pasting and exhausting, and has flexibility, and the flexible design of the display module is not influenced. In other embodiments, the adhesive layer may be other adhesive layers.
The first surface of the display panel is a surface opposite to the light emitting side of the display panel, the second surface of the display panel is the light emitting side of the display panel, and the user views the content displayed on the display panel through the light emitting side of the display panel.
In order to better improve the cohesion of the heat conductive material per unit area, in a specific embodiment, as shown in fig. 2a and 2b, the buffer layer includes a plurality of slot groups 2023, each slot group includes a plurality of slots arranged in an array, each slot is filled with the heat conductive material 2022, the orthographic projection of the slot group on the display panel is a circle, and the orthographic projection of the slot on the display panel is a circle or a polygon.
In this embodiment, the arrangement, number and shape of the slots in each slot group are designed according to practical application requirements. In an alternative embodiment, for example, the slot sets comprise equally spaced 7 polygonal slots,
when forming a plurality of grooves arranged in an array, a plurality of groove areas can be divided on one side of the buffer body, which is close to the heat dissipation layer, wherein each groove area is a circle with the radius of 25mm, and each adjacent circular groove area is intersected. For example, as shown in fig. 3, six dividing lines 20241 with an angle of 60 degrees are formed on the circular slotting region 2024, so that the slotting region is divided into six identical sector-shaped regions 20242, polygonal slotting with equal width and depth are formed at the same position of each dividing line from the center of a circle and the center position of the circular slotting region, each polygonal slotting is filled with a heat conducting material 2022, so that 7 polygonal slotting arranged in an array are formed, and the orthographic projection of the slotting group on the display panel is circular. As shown in FIG. 3, the distance between each slot on each dividing line and the center of the circle is
Wherein a is the center distance of circles of adjacent circular slotting regions, and alpha is the separation angle of two adjacent dividing lines.
In the embodiment, the distance a between the centers of circles of two adjacent circular slotting regions is 25mm, and the distance a between the centers of circles is 60 DEGI.e. in each dividing line +.>Is slotted at the center of the circle, thereby forming 7 polygonal slots which are arranged in an array. In this embodiment, under the condition that the display module is subjected to external force, each slotting of even distribution is stressed evenly, and the bulge phenomenon and layering phenomenon of the composite film in the prior art can be effectively avoided.
It should be noted that the foregoing embodiments are merely illustrative of specific embodiments of the present application, and the structures, distributions and dimensions of the slot groups and slots are not limited, and those skilled in the art should select appropriate slots according to actual application requirements, which are not described herein.
In an alternative embodiment, to ensure that the buffer layer does not wrinkle or tear due to stress concentrations when the slot is polygonal, the slot includes a chamfer having a fillet radius of 2mm or greater.
In this embodiment, through setting up the chamfer of each fluting, can evenly release the stress of receiving, further improve fluting stability to through setting up the heat conduction material that fills in every fluting, can be when reducing the unit area of heat conduction material in order to improve the cohesion of unit area heat conduction material, ensure the heat dispersion of heat conduction material, thereby avoid the play drum phenomenon and the layering phenomenon of complex film, effectively simplified the manufacturing process of complex film, practiced thrift the manufacturing cost of display module assembly.
It will be appreciated that when the slot is circular, there is no stress concentration problem, so there is no need to consider the problem of buffer wrinkling or tearing.
It should be noted that the foregoing examples are only examples for better understanding of the technical solutions of the embodiments of the present invention, and are not intended to be the only limitation of the embodiments of the present invention, and the arrangement and shape of the slots may be designed according to practical needs, for example, the slots may be not only regular polygons, such as squares, but also non-regular polygons, such as rectangles or diamonds.
In an alternative embodiment, the slots in the above embodiments are vias that pass through the buffer layer.
In this embodiment, as shown in fig. 1, the buffer layer includes a buffer body 2021, and a plurality of slots penetrating the buffer layer, each slot being filled with a thermally conductive material 2022. Specifically, the grooving can be obtained by hollowing out one side, close to the heat dissipation layer, of a buffering body material layer formed by the buffering body, namely, the top wall of the grooving is the surface, far away from the display panel, of the adhesive layer, the bottom wall is the surface, close to the display panel, of the heat dissipation layer, namely, the grooving length is equal to the thickness of the buffering body. It is understood that the thickness direction of the buffer body may be perpendicular to the bearing surface of the display panel.
The heat conductive material is filled in the grooves in consideration of the light shielding effect of the buffer layer. Specifically, graphite material is filled in the slots.
The composite film in this embodiment is in through setting up the buffering body in the buffer layer and setting up the buffering body is close to a plurality of the fluting that link up of heat dissipation layer one side the buffer layer, every fluting is filled heat conduction material, on the basis of guaranteeing even heat dissipation function, effectively reduces heat conduction material's unit area in order to improve unit area heat conduction material's cohesion, improve the holding power of buffer layer, can solve the easy problem of taking place the bulge phenomenon of composite film in the follow-up maintenance among the prior art, simplified the manufacturing process of composite film, practiced thrift the manufacturing cost of display module assembly.
In another alternative embodiment, the slot in the above embodiment is a buried hole provided in the buffer layer.
In this embodiment, as shown in fig. 4, the buffer layer includes a buffer body 2021, and a plurality of slots, the thickness of which is smaller than that of the buffer layer, and each slot is filled with a heat conductive material 2022. Each slot is formed in one side of the buffer body, which is close to the heat dissipation layer, specifically, the slot can be obtained by hollowing out a material layer part of the buffer body, namely, the top wall of the slot is the surface of the buffer body, which is close to the heat dissipation layer, and the bottom wall is the surface of the heat dissipation layer, which is close to the display panel, namely, the length of the slot is smaller than the thickness of the buffer body. It is understood that the thickness direction of the buffer body is perpendicular to the bearing surface of the display panel.
The heat conductive material is filled in the grooves in consideration of the light shielding effect of the buffer layer. Specifically, graphite material is filled in the slots.
It is understood that the length and width of the slot may be designed according to practical application requirements, for example, when the display panel has a large area, the length of the slot may be two-thirds of the thickness of the buffer body; when the display panel area is smaller, the length of the slot may be half the thickness of the buffer body.
The composite film in the embodiment not only effectively reduces the unit area of the heat conducting material to improve the cohesive force of the unit area heat conducting material, but also solves the problem that the composite film is easy to generate a bulge phenomenon during subsequent maintenance in the prior art on the basis of ensuring the uniform heat dissipation function through the heat conducting material arranged in the grooves of the buffer layer, and further reduces the consumption of the heat conducting material, thereby simplifying the manufacturing process of the composite film and saving the manufacturing cost of the display module.
It can be understood that the display module has been widely used in various electronic products as a display component of the electronic device, and the design of the narrow frame and the ultra-thin module is also more and more favored by terminal manufacturers and consumers, and the implementation of the narrow frame scheme is mainly realized by bending by means of the binding area, so that the driving chip is bent to the back of the display module. In order to realize the ultra-thin module, the bending radius of the bending area needs to be designed to be smaller, and the height of the bending area is generally determined by the thickness of the film layer below the display panel. In this embodiment, the total height of the bending region can be reduced by eliminating the graphite layer in the composite film, so that the structural design requirement of the display module with the bending radius of 0.2 mm or less can be better met. Meanwhile, graphite is used as a heat conduction material to be filled into the buffer layer, so that the problem that the composite film is easy to bulge during subsequent maintenance in the prior art is solved while the reinforcing protection effect and the auxiliary heat dissipation effect of the original graphite layer are not lost.
Based on the display module, an embodiment of the invention further provides a display device, including the display module according to the above embodiment.
In this embodiment, the display device may be: a liquid crystal display (liquid crystaldisplay, LCD), an Organic Light Emitting Diode (OLED), a display device, an active matrix organic light emitting diode AMOLED display device, a mobile phone, a tablet computer, a flexible display device, a television, a display, and any other products or components having a display function.
Corresponding to the display module provided in the above embodiment, as shown in fig. 5, another embodiment of the present invention provides a method for manufacturing a display module, including:
punching holes on the buffer body material layer and filling heat conducting materials to form a buffer layer;
respectively attaching the adhesive layer, the buffer layer and the heat dissipation layer to form a composite film;
the composite film is attached to the first surface of the display panel through the adhesive layer, and the second surface of the display panel, which is arranged opposite to the first surface, is a light emitting side.
In a specific embodiment, when punching is performed on the buffer body material layer, punching may be performed directly on the buffer body material layer and the buffer layer may be formed by filling a heat conducting material, or a plurality of punching areas may be divided first, then punching is performed in each punching area to form grooves arranged in an array, for example, as shown in fig. 3, each punching area is divided into circles with a radius of 25mm, and each adjacent circle punching area intersects. Six dividing lines with an angle of 60 degrees are formed on the round punching area, and punching is carried out at the same position of each dividing line from the circle center and the circle center of the round punching area, so that grooves which are arranged in an array are formed, and heat conducting materials are filled in the grooves to form the buffer layer.
And then attaching the adhesive layer, the buffer layer and the heat dissipation layer to form a composite film, and installing the composite film on the first surface of the display panel, namely the surface opposite to the second surface of the light emitting side of the display panel, so that the display module is provided, and the composite film dissipates heat and protects the display panel.
In this embodiment, through the heat conducting material filled after punching on the buffer body material layer, on the basis of ensuring the heat dissipation function, the unit area of the heat conducting material is effectively reduced to improve the cohesive force of the unit area heat conducting material, so that the problem that the composite film is easy to bulge during subsequent maintenance in the prior art can be solved, the manufacturing process of the composite film is simplified, and the manufacturing cost of the display module is saved.
It should be understood that the foregoing examples of the present invention are provided merely for clearly illustrating the present invention and are not intended to limit the embodiments of the present invention, and that various other changes and modifications may be made therein by one skilled in the art without departing from the spirit and scope of the present invention as defined by the appended claims.
Claims (10)
1. A display module, comprising:
a display panel including a first face and a second face disposed opposite to each other; and
a composite film disposed on the first side, wherein
The composite film comprises an adhesive layer, a buffer layer and a heat dissipation layer which are laminated from the near to the far direction of the display panel, wherein the buffer layer comprises a buffer body and a plurality of grooves formed in one side of the buffer body close to the heat dissipation layer, and each groove is filled with a heat conduction material;
the second surface is the light emitting side of the display panel.
2. The display module assembly of claim 1, wherein the display module assembly comprises,
the grooves are through holes penetrating through the buffer layer;
or alternatively
The grooves are buried holes formed in the buffer layer.
3. The display module of claim 2, wherein the front projection of the slot on the display panel is circular or polygonal.
4. The display module of claim 1, wherein the orthographic projection of the slot on the display panel is a polygon, the polygon comprising a chamfer, and a corner radius of the chamfer is greater than or equal to 2mm.
5. The display module of claim 1, wherein the buffer layer comprises a plurality of slotted groups, each slotted group comprising a plurality of slots arranged in an array, the orthographic projection of the slotted groups on the display panel being circular, the orthographic projection of the slots on the display panel being circular or polygonal.
6. The display module assembly of claim 5, wherein the slot sets comprise 7 slots equally spaced.
7. The display module of any one of claims 1-6, wherein the buffer body is foam and the thermally conductive material is graphite.
8. The display module assembly of claim 7, wherein the display module assembly,
the adhesive layer is double-sided adhesive tape;
and/or
The heat dissipation layer is made of metal.
9. A display device comprising a display module according to any one of claims 1-8.
10. A method of manufacturing a display module according to any one of claims 1 to 8, comprising:
punching holes on the buffer body material layer and filling heat conducting materials to form a buffer layer;
respectively attaching the adhesive layer, the buffer layer and the heat dissipation layer to form a composite film;
the composite film is attached to the first surface of the display panel through the adhesive layer, and the second surface of the display panel, which is arranged opposite to the first surface, is a light emitting side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149703.5A CN114447254B (en) | 2022-02-18 | 2022-02-18 | Display module, manufacturing method and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210149703.5A CN114447254B (en) | 2022-02-18 | 2022-02-18 | Display module, manufacturing method and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114447254A CN114447254A (en) | 2022-05-06 |
| CN114447254B true CN114447254B (en) | 2024-04-05 |
Family
ID=81373117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210149703.5A Active CN114447254B (en) | 2022-02-18 | 2022-02-18 | Display module, manufacturing method and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114447254B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114994967A (en) * | 2022-05-27 | 2022-09-02 | 武汉天马微电子有限公司 | Display module and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008177092A (en) * | 2007-01-19 | 2008-07-31 | Casio Comput Co Ltd | Light-emitting device, and printing device |
| CN103322457A (en) * | 2013-06-26 | 2013-09-25 | 合肥京东方光电科技有限公司 | Light bar, backlight module and display device |
| CN211182248U (en) * | 2019-11-06 | 2020-08-04 | 苏州环明电子科技有限公司 | High heat dissipating screen back composite member |
| CN113658517A (en) * | 2021-09-18 | 2021-11-16 | 京东方科技集团股份有限公司 | Display module, assembly method thereof and display device |
| CN215214484U (en) * | 2021-05-15 | 2021-12-17 | 瑞安市洪江车业有限公司 | Wear-resistant and durable motorcycle brake pad |
| CN215435443U (en) * | 2021-01-15 | 2022-01-07 | 深圳市星唛达科技开发有限公司 | Heat conduction foam for eliminating abnormal water ripples generated during touch of mobile phone touch screen |
| CN113999623A (en) * | 2021-11-18 | 2022-02-01 | 太仓展新胶粘材料股份有限公司 | Integrated composite heat dissipation buffer part and preparation method thereof |
-
2022
- 2022-02-18 CN CN202210149703.5A patent/CN114447254B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008177092A (en) * | 2007-01-19 | 2008-07-31 | Casio Comput Co Ltd | Light-emitting device, and printing device |
| CN103322457A (en) * | 2013-06-26 | 2013-09-25 | 合肥京东方光电科技有限公司 | Light bar, backlight module and display device |
| CN211182248U (en) * | 2019-11-06 | 2020-08-04 | 苏州环明电子科技有限公司 | High heat dissipating screen back composite member |
| CN215435443U (en) * | 2021-01-15 | 2022-01-07 | 深圳市星唛达科技开发有限公司 | Heat conduction foam for eliminating abnormal water ripples generated during touch of mobile phone touch screen |
| CN215214484U (en) * | 2021-05-15 | 2021-12-17 | 瑞安市洪江车业有限公司 | Wear-resistant and durable motorcycle brake pad |
| CN113658517A (en) * | 2021-09-18 | 2021-11-16 | 京东方科技集团股份有限公司 | Display module, assembly method thereof and display device |
| CN113999623A (en) * | 2021-11-18 | 2022-02-01 | 太仓展新胶粘材料股份有限公司 | Integrated composite heat dissipation buffer part and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114447254A (en) | 2022-05-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2764401B1 (en) | Interconnection schemes for displays with minimized border regions | |
| US11600799B2 (en) | Display device | |
| RU2671935C1 (en) | Matrix substrate and method of its production, flexible display panel and display device | |
| CN110570764A (en) | display panel and manufacturing method thereof | |
| CN113140158B (en) | Display panel and display device | |
| CN107644593B (en) | Flexible OLED display panel | |
| US20210202649A1 (en) | Display panel, display device and method for manufacturing display panel | |
| CN111968521A (en) | Display panel and display device | |
| CN101083144A (en) | Display apparatus | |
| CN114447254B (en) | Display module, manufacturing method and display device | |
| JP2007317861A (en) | Multilayered printed board, and liquid crystal display | |
| US9915842B2 (en) | Display panel, method of manufacturing the same and display device | |
| CN114446172B (en) | Display panel and display device | |
| KR20170023231A (en) | Cover window for foldable display device and foldable display device including the same | |
| CN112599538A (en) | Flexible display screen, preparation method thereof and flexible display device | |
| CN110600494A (en) | Display substrate and preparation method thereof, display panel and preparation method thereof | |
| CN114822234A (en) | Flexible display module and preparation method thereof | |
| CN113257112A (en) | Display panel and display device | |
| CN113160714A (en) | Spliced screen and preparation method thereof | |
| CN216927578U (en) | Optical cement, display module and display device | |
| KR20210027579A (en) | Display device and method for manufacturing thereof | |
| CN115132086A (en) | Display screen, preparation method thereof and display device | |
| CN114120839A (en) | Display module and display device | |
| US11737217B2 (en) | Display device and back plate thereof | |
| US20240122001A1 (en) | Display Module and Display Apparatus |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |