CN113178134A - Display module and display device - Google Patents

Display module and display device Download PDF

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Publication number
CN113178134A
CN113178134A CN202110582334.4A CN202110582334A CN113178134A CN 113178134 A CN113178134 A CN 113178134A CN 202110582334 A CN202110582334 A CN 202110582334A CN 113178134 A CN113178134 A CN 113178134A
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CN
China
Prior art keywords
display panel
layer
heat dissipation
adhesive layer
display module
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.)
Pending
Application number
CN202110582334.4A
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Chinese (zh)
Inventor
王东
王新鹏
黄浩
姚建力
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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Application filed by BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to CN202110582334.4A priority Critical patent/CN113178134A/en
Publication of CN113178134A publication Critical patent/CN113178134A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K9/00—Screening of apparatus or components against electric or magnetic fields
    • H05K9/0067—Devices for protecting against damage from electrostatic discharge
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

The embodiment of the application provides a display module and a display device, wherein the display module comprises a display panel and a heat dissipation film, and the heat dissipation film is attached to the display panel; the heat dissipation film comprises an adhesive layer and a metal layer, the adhesive layer is connected with the display panel, and the metal layer is arranged on one side of the adhesive layer, which is far away from the display panel; at least one of the adhesive layer and the metal layer is provided with a conductive part, one end of the conductive part is connected with the metal layer, and the other end of the conductive part is in contact with the display panel. In the display module in the above embodiment, by providing the conductive portion, on one hand, heat generated by the display panel can be directly conducted to the metal layer through the conductive portion, so that the heat conduction efficiency is improved, and the problem of limited heat dissipation effect caused by low heat conduction efficiency of the adhesive layer can be solved; on the other hand, the conductive part can guide static electricity generated by the display panel to the metal layer of the heat dissipation film, so that the static electricity is prevented from influencing normal display of the display panel.

Description

Display module and display device
Technical Field
The embodiment of the application relates to the technical field of display equipment, in particular to a display panel and a display device.
Background
During manufacturing, testing, and using of the display device, static electricity is easily generated due to friction, and static electricity in air, a human body, or other charged objects is transferred to the display device. When static electricity is not discharged or is not sufficiently discharged, the accumulated static electricity affects the display effect of the display panel and even damages the display device.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a display module and a display device.
In a first aspect, an embodiment of the present application provides a display module, including a display panel and a heat dissipation film, where the heat dissipation film is attached to the display panel; the heat dissipation film comprises an adhesive layer and a metal layer, the adhesive layer is connected with the display panel, and the metal layer is arranged on one side of the adhesive layer, which is far away from the display panel;
at least one of the adhesive layer and the metal layer is provided with a conductive part, one end of the conductive part is connected with the metal layer, and the other end of the conductive part is in contact with the display panel.
In the display module in the above embodiment, by providing the conductive portion, on one hand, heat generated by the display panel can be directly conducted to the metal layer through the conductive portion, so that the heat conduction efficiency is improved, and the problem of limited heat dissipation effect caused by low heat conduction efficiency of the adhesive layer can be solved; on the other hand, the conductive part can guide static electricity generated by the display panel to the metal layer of the heat dissipation film, so that the static electricity is prevented from influencing normal display of the display panel.
In a possible implementation manner, the metal layer includes a heat dissipation layer body parallel to the adhesive layer and a bent portion extending from the heat dissipation layer body to the display panel, and the bent portion is the conductive portion.
In a possible embodiment, the projection of the glue layer onto the display panel is within the peripheral edge of the display panel; the projection of the heat dissipation layer to the display panel is overlapped with the projection of the adhesive layer to the display panel, and the peripheral edge of the heat dissipation layer is aligned with that of the adhesive layer;
the bending part is connected with the edge side of the heat dissipation layer body, and the peripheral area of the adhesive layer extends to the display panel.
In a possible implementation manner, the bending portion includes a contact end contacting the display panel, and the contact end includes an alignment mark aligned with a corresponding edge side of the display panel.
In one possible embodiment, the alignment mark is an outer side edge of the contact end away from the heat dissipation layer body.
In a possible implementation manner, the peripheral edge of the display panel includes four edge sides connected end to end in sequence, and the metal layer is provided with the bending portion corresponding to at least two of the edge sides.
In a possible embodiment, at least two of the folds are provided along the same edge side.
In a possible embodiment, along the same edge side, the outer side extends for a distance proportional to the length of the corresponding edge side from 1/20 to 3/4.
In a possible embodiment, the projection of the glue layer onto the display panel is within the peripheral edge of the display panel; the projection of the heat dissipation layer body to the display panel is arranged in the peripheral edge of the projection of the adhesive layer to the display panel;
the bending part is connected with the edge side of the heat dissipation layer body and extends to the display panel.
In a possible embodiment, the adhesive layer is provided with a first slot avoiding the bending portion.
In a possible embodiment, the glue layer includes a mesh glue layer and a foam layer with peripheral edges aligned, the foam layer is connected to the metal layer, and the mesh glue layer is disposed on a side of the foam layer away from the metal layer.
In one possible embodiment, the mesh glue layer and the foam layer include low-resistance materials for enhancing electrical conductivity, and the conductive portions are the mesh glue layer and the foam layer.
In one possible embodiment, the metal layer is a copper foil.
In a possible implementation manner, the display panel is a flexible display panel, the flexible display panel includes a flexible substrate and a back film attached to the back side of the flexible substrate, the heat dissipation film is attached to one side of the back film away from the flexible substrate, and the conductive portion is in contact with the back film.
In a possible implementation manner, the flexible display panel is provided with a bending mark for marking a bending position, and the heat dissipation film is provided with a second groove for exposing the bending mark.
In a possible implementation manner, a positioning mark for positioning is arranged on the display panel, and a third slot for exposing the positioning mark is arranged on the heat dissipation film.
In a second aspect, an embodiment of the present application also provides a display device, including the display module set in any one of the embodiments of the first aspect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only one or more embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display module according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of the flexible display panel in fig. 1;
FIG. 3 is a schematic structural diagram of the heat dissipation film of FIG. 1;
FIG. 4 is a schematic diagram of the flexible display panel and the heat dissipation film of FIG. 1;
fig. 5 is a schematic structural diagram of another display module provided in the embodiment of the present application;
FIG. 6 is a schematic structural diagram of the heat dissipation film in FIG. 5;
FIG. 7 is a schematic diagram of the flexible display panel and the heat dissipation film of FIG. 5;
fig. 8 is a partially enlarged view of the area a in fig. 7.
Description of reference numerals:
the display panel comprises a flexible display panel 1, a first side edge 11, a second side edge 12, a third side edge 13, a fourth side edge 14, a back film 2, a metal layer 3, a heat dissipation layer body 31, a bending portion 32, a contact end 321, a grid adhesive layer 4, a foam layer 5, a third groove 6, a second groove 7 and a first groove 8.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic structural diagram of a display module provided in an embodiment of the present application, and as shown in fig. 1, the display module includes a flexible display panel 1 and a heat dissipation Film, where the flexible display panel 1 includes a flexible substrate, a Thin Film Transistor (abbreviated as TFT) layer, a light emitting device, and an encapsulation layer, which are stacked. The display module assembly is still including being located the protection apron in the encapsulation layer outside, and the effect to the protection of flexible display panel 1 can be played in the laminating of protection apron and flexible display panel 1.
The flexible substrate is a flexible plate-shaped structure capable of bending and deforming, and is generally made of at least one material of Polyimide (abbreviated as PI), polyethylene terephthalate (abbreviated as PET), Polycarbonate (abbreviated as PC), Polymethyl Methacrylate (abbreviated as PMMA), and Polyether sulfone Resin (abbreviated as PES). The flexible substrate comprises a first surface and a first surface which are opposite, the thin film transistor layer, the light emitting device and the packaging layer are arranged on the first surface of the flexible substrate, the back film 2 is arranged on the first surface of the flexible substrate, and the direction between the first surface and the second surface is the thickness direction of the flexible substrate and is also the thickness direction of the flexible display panel 1.
The back film 2 is used for protecting and supporting the flexible display panel 1, the back film 2 generally comprises a back film base material and a back film adhesive material, the back film adhesive material is arranged on one side of the back film base material close to the flexible substrate, and the back film base material is connected with the flexible substrate through the back film adhesive material. The backing film base material can be made of a high polymer material, for example, the same material as the flexible substrate; the back film substrate can also be made of metal materials. The back film Adhesive material is used for connecting the back film substrate and the flexible display panel 1 by adhesion, and may be at least one of Pressure Sensitive Adhesive (PSA), transparent optical Adhesive (OCA) and double-sided Adhesive.
In the flexible display panel 1, the light Emitting device may be an LED (inorganic light Emitting Diode), a Mini LED (sub-millimeter light Emitting Diode), a Micro LED (Micro light Emitting Diode), or an OLED (organic light Emitting Diode). The light emitting direction of the light emitting device is the light emitting direction of the flexible display panel 1, and the light emitting direction of the flexible display panel 1 is parallel to the thickness direction of the flexible display panel 1, that is, the light emitting direction is perpendicular to the first surface and the second surface of the flexible substrate.
It should be noted that, the shapes of the flexible display panel 1 and the heat dissipation film are described herein as projecting in a plane perpendicular to the light exit direction along the light exit direction, wherein, since the light exit direction of the display panel is perpendicular to the extending surface of the display panel at the light exit position, the flexible display panel projects in a plane perpendicular to the light exit direction along the light exit direction, that is, in the projection of the light exit direction of the display panel to the display panel.
The flexible display panel 1 may be of any shape. Fig. 2 is a schematic structural diagram of the flexible display panel in fig. 1; as shown in fig. 2, the flexible display panel 1 has a rectangular shape, and its peripheral edge, i.e. the edge profile of the rectangular shape, includes four edge sides connected end to end in sequence, where the four edge sides include a first side 11 and a second side 12 opposite to each other, and a third side 13 and a fourth side 14 opposite to each other. The two ends of the third side 13 are connected to the same ends of the first side 11 and the second side 12, respectively, and the two ends of the fourth side 14 are connected to the other ends of the first side 11 and the second side 12, respectively.
Taking the orientation in fig. 2 as an example, the first side 11 and the second side 12 are equal-length sides extending longitudinally on the left and right sides, the third side 13 and the fourth side 14 are equal-length sides extending transversely on the upper and lower sides, and the first side 11 and the second side 12 are longer than the third side 13 and the fourth side 14. The adjacent edge sides can be directly connected, and can also be connected through smooth transition of circular arcs, curves and the like. The peripheral edge of the back film 2 is aligned with the peripheral edge of the flexible display panel 1, and the alignment of the peripheral edges means that the two are identical in shape and size and are arranged in an overlapping manner, that is, the peripheral edge of the back film 2 has edge sides aligned with the first side 11, the second side 12, the third side 13 and the fourth side 14, respectively.
The heat dissipation film is arranged on one side, away from the flexible substrate, of the back film 2 and used for guiding heat generated in the working process of the flexible display panel 1 to the heat dissipation film, and the heat dissipation film uniformly distributes and scatters the heat to the whole heat dissipation film, so that the heat dissipation area is increased, the heat dissipation efficiency is improved, and the problem that local overheating causes abnormal display and other undesirable problems in many aspects is avoided.
Fig. 3 is a schematic structural diagram of the heat dissipation film in fig. 1, fig. 4 is a schematic structural diagram of the flexible display panel and the heat dissipation film in fig. 1, as shown in fig. 3 and fig. 4, the heat dissipation film includes an adhesive layer and a metal layer 3, the adhesive layer is disposed between the metal layer 3 and the back film 2, and is used for connecting the metal layer 3 to the back film 2, the adhesive layer may be formed of a single layer or a plurality of layers of adhesive materials, in this embodiment, the adhesive layer includes a mesh adhesive layer 4 and a foam layer 5 with peripheral edges aligned, the foam layer 5 is connected with the metal layer 3, and the mesh adhesive layer 4 is disposed on one side of the foam layer 5 away from the metal layer 3.
The peripheral edge of the glue layer is located in the peripheral edge of the flexible display panel 1, and has an edge side parallel to the corresponding edge side of the flexible display panel 1, that is, the glue layer and the heat dissipation layer body 31 are designed to be retracted relative to the display panel.
The metal layer 3 includes a heat dissipation layer body 31 and a bending portion 32, the heat dissipation layer body 31 is parallel to the adhesive layer, and the peripheral edge of the heat dissipation layer body 31 is aligned with the peripheral edge of the adhesive layer. The bending portion 32 is connected to the edge side of the heat dissipation layer body 31, and extends to the flexible display panel 1 to contact the back film 2 in the peripheral area of the adhesive layer. In this embodiment, metal level 3 chooses for use the copper foil, because the heat dispersion and the ductility of copper are better, chooses for use the copper foil can be suitable for the bending deformation of flexible display panel 1. In an application scenario that bending is not needed, the metal layer 3 may be made of other metal materials with good electrical conductivity and heat dissipation performance.
In the above embodiment, by providing the bending portion 32 contacting the back film 2 on the metal layer 3, on one hand, the heat generated by the flexible display panel 1 can be directly guided to the heat dissipation layer body 31 through the bending portion 32, so as to improve the heat conduction efficiency, and the problem of limited heat dissipation effect caused by low heat conduction efficiency of the adhesive layer can be improved.
On the other hand, in the manufacturing, testing and using processes of the display module, static electricity is easily generated due to friction, and in addition, the static electricity in air, human bodies or other charged objects is also transferred to the display module. When static electricity cannot be released or is not sufficiently released, the accumulated static electricity can affect the display effect of the flexible display panel and even damage the display module. For example, when the display module performs a copper bar test, the copper bar needs to be rubbed on the protective cover plate of the display module, negative charges (static electricity) are generated on the protective cover plate in the rubbing process, and the negative charges affect the characteristics of the TFT in the TFT layer, thereby causing poor display.
In the embodiment of the present application, the bending portion 32 can guide static electricity generated by the flexible display panel 1 (for example, negative charge generated by the copper rod) to the heat dissipation film, so as to prevent the static electricity from affecting normal display of the flexible display panel 1, and avoid poor display caused by static electricity generated by tests such as copper rod friction.
Referring to fig. 3 and fig. 4, the end of the bending portion 32 contacting the back film 2 is a contact end 321, and when the position where the heat dissipation film is attached to the flexible display panel 1 meets the design requirement, the outer side of the contact end 321 away from the heat dissipation layer body 31 is aligned with the edge of the flexible display panel 1 at the corresponding position; therefore, whether the joint position of the heat dissipation film and the flexible display panel 1 meets the requirement or not is judged by observing whether the outer side edge of the contact end 321 is aligned with the edge side edge of the flexible display panel 1 or not, the method can perform 100% full detection visually, the detection efficiency and the detection accuracy are improved, and a sample with joint deviation is prevented from flowing to a client.
In the above embodiment, the outer side edge of the contact end 321 is used as an alignment mark to determine whether the heat dissipation film is accurately attached, but the embodiment of the application is not limited to that, for example, the alignment mark such as a reference line and a reference pattern may be provided on the plane where the contact end 321 contacts the back film 2 to determine whether the heat dissipation film is accurately attached.
In order to further improve the accuracy of judging whether the heat dissipation film is attached through the contact ends 321, the metal layer 3 is provided with the bending parts 32 corresponding to at least two edge sides, the contact ends 321 of the bending parts 32 corresponding to each edge side are provided with the alignment marks, and the at least two edge sides are aligned and compared with the corresponding contact end alignment marks.
Further, along the same edge side, the bending part 32 is provided with at least two, and the contact end 321 of the bending part 32 is provided with an alignment mark. Because a straight line needs at least two points to define, and more points can define the straight line more accurately, therefore through the mode of setting up two at least kink at same edge side, increase the figure of the reference structure of alignment, improve flexible display panel's accuracy.
In another possible embodiment, the outer side of the bent portion extends along the same edge side by a set distance, where the ratio of the set distance to the length of the corresponding edge side may be 1/20-3/4. So design, through the length that increases kink outside limit, utilize the contrast between line segment and the line segment to judge whether align for the edge side can be more convenient and accurate when doing the alignment with the outside limit and comparing. It can be understood that the longer the extension distance of the alignment mark is, the more the number of the alignment mark is, the easier the alignment judgment of the heat dissipation film and the flexible display panel is, and the more accurate the judgment result is.
For example, in the embodiment shown in fig. 4, three bent portions 32 are provided from top to bottom corresponding to the first side edge 11, and the outer side edges (alignment marks) of the contact ends 321 in the first two bent portions 32 are equal and shorter along the extension length of the first side edge 11; the outer edge of the contact end 321 of the third bent portion 32 extends along the first side 11 for a longer length. A bent portion 32 is disposed on the third side 13 and the second side 12, and an outer side edge of the contact end 321 in the bent portion 32 extends a longer distance corresponding to an edge side.
Due to the design, the plurality of alignment marks provide a plurality of judgment references, so that the judgment accuracy can be improved; moreover, the more bent portions 32 can further improve the heat dissipation efficiency and the static electricity discharge efficiency of the heat dissipation film. In addition, the more bending portions 32 at different positions make the interaction force between the heat dissipation film and the flexible display panel 1 more balanced, and prevent the heat dissipation film from tilting due to the force applied to one side.
The flexible display panel 1 is further provided with a positioning mark (mark) and a bending mark, the positioning mark is used for positioning the flexible display panel 1, the position of the flexible display panel 1 can be conveniently determined in the subsequent assembly process, the assembly precision is improved, and the bending mark is used for marking the bending position. The heat dissipation film is correspondingly provided with a third open slot 6 and a second open slot 7, and the third open slot 6 is arranged corresponding to the positioning mark so that the positioning mark is normally exposed. The second slot 7 is arranged corresponding to the bending mark so as to normally expose the bending mark.
In the embodiment shown in fig. 4, the third slot 6 is provided close to the first side 11 and the second slot 7 is provided close to the second side 12.
In the above embodiment, the heat dissipation layer body 31 and the adhesive layer are designed in an aligned manner, but the present disclosure is not limited thereto, for example, fig. 5 is a schematic structural diagram of another display module provided in the present disclosure, fig. 6 is a schematic structural diagram of the heat dissipation film in fig. 5, fig. 7 is a schematic matching diagram of the flexible display panel and the heat dissipation film in fig. 5, and fig. 8 is a partially enlarged view of an area a in fig. 7, as shown in fig. 5 to 8, the heat dissipation layer body 31 may further be disposed in an inwardly retracted manner with respect to the adhesive layer, the adhesive layer may be disposed with a first slot 8 corresponding to the bending portion 32, and the bending portion 32 extends toward the back film 2 through the first slot 8.
In another possible embodiment, the bending portion 32 may extend from the edge of the heat dissipation layer body 31 under the glue layer, and then bend at the outer peripheral area of the glue layer to extend toward the back film 2.
The grid glue layer 4 and the foam layer 5 may use low-impedance materials to enhance the electrical conductivity, such as doped conductive particles to enhance the electrostatic conduction capability, in which case the bending portion 32 may be omitted, and the grid glue layer 4 and the foam layer 5 are the conductive portions electrically connecting the flexible display panel 1 and the metal layer 3.
The foregoing embodiment is described by taking a flexible display panel as an example, but the heat dissipation film provided in the embodiment of the present application is not limited thereto, and for example, the heat dissipation film can also be applied to a display panel that cannot be bent and deformed, such as an OLED display panel and a liquid crystal display panel. In this case, the back film may be omitted and the heat dissipation film directly contacts the display panel.
The embodiment of the present application also provides a display device including the display panel, where the display device may be any device with a display function, such as a mobile phone, a notebook computer, a tablet computer, a display, a touch display all-in-one machine, and the like, and the present embodiment is not limited thereto.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected unless explicitly stated or limited otherwise; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features mentioned in the different embodiments of the present application can be combined with each other as long as they do not conflict with each other.
So far, the technical solutions of the present application have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present application is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the present application, and the technical scheme after the changes or substitutions will fall into the protection scope of the present application.

Claims (17)

1. The display module is characterized by comprising a display panel and a heat dissipation film, wherein the heat dissipation film is attached to the display panel; the heat dissipation film comprises an adhesive layer and a metal layer, the adhesive layer is connected with the display panel, and the metal layer is arranged on one side of the adhesive layer, which is far away from the display panel;
at least one of the adhesive layer and the metal layer is provided with a conductive part, one end of the conductive part is connected with the metal layer, and the other end of the conductive part is in contact with the display panel.
2. The display module according to claim 1, wherein the metal layer comprises a heat dissipation layer body parallel to the adhesive layer and a bending portion extending from the heat dissipation layer body to the display panel, and the bending portion is the conductive portion.
3. The display module of claim 2, wherein the projection of the glue layer onto the display panel is within the peripheral edge of the display panel; the projection of the heat dissipation layer to the display panel is overlapped with the projection of the adhesive layer to the display panel, and the peripheral edge of the heat dissipation layer is aligned with that of the adhesive layer;
the bending part is connected with the edge side of the heat dissipation layer body, and the peripheral area of the adhesive layer extends to the display panel.
4. The display module according to claim 3, wherein the bending portion comprises a contact end contacting the display panel, and the contact end comprises an alignment mark aligned with a corresponding edge side of the display panel.
5. The display module of claim 4, wherein the alignment mark is an outer side edge of the contact end away from the heat dissipation layer body.
6. The display module according to claim 5, wherein the peripheral edge of the display panel comprises four edge sides connected end to end in sequence, and the metal layer is provided with the bending portion corresponding to at least two of the edge sides.
7. The display module according to claim 6, wherein at least two of the bending portions are disposed along the same edge.
8. The display module of claim 6, wherein along the same edge side, the outer side extends a distance that is 1/20-3/4 times the length of the corresponding edge side.
9. The display module of claim 2, wherein the projection of the glue layer onto the display panel is within the peripheral edge of the display panel; the projection of the heat dissipation layer body to the display panel is arranged in the peripheral edge of the projection of the adhesive layer to the display panel;
the bending part is connected with the edge side of the heat dissipation layer body and extends to the display panel.
10. The display module assembly according to claim 11, wherein the adhesive layer is provided with a first slot avoiding the bending portion.
11. The display module according to claim 1, wherein the adhesive layer comprises a mesh adhesive layer and a foam layer, the peripheral edges of the mesh adhesive layer are aligned with each other, the foam layer is connected with the metal layer, and the mesh adhesive layer is disposed on a side of the foam layer away from the metal layer.
12. The display module of claim 11, wherein the mesh glue layer and the foam layer comprise a low resistance material for enhancing electrical conductivity, and the conductive portions are the mesh glue layer and the foam layer.
13. The display module of claim 1, wherein the metal layer is a copper foil.
14. The display module assembly according to claim 1 or 13, wherein the display panel is a flexible display panel, the flexible display panel includes a flexible substrate and a back film attached to a back side of the flexible substrate, the heat dissipation film is attached to a side of the back film away from the flexible substrate, and the conductive portion is in contact with the back film.
15. The display module assembly as claimed in claim 14, wherein the flexible display panel is provided with a bending mark for marking a bending position, and the heat dissipation film is provided with a second slot exposing the bending mark.
16. The display module assembly as claimed in claim 1, wherein the display panel is provided with a positioning mark for positioning, and the heat dissipation film is provided with a third slot exposing the positioning mark.
17. A display device comprising the display module according to any one of claims 1 to 16.
CN202110582334.4A 2021-05-25 2021-05-25 Display module and display device Pending CN113178134A (en)

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CN202110582334.4A CN113178134A (en) 2021-05-25 2021-05-25 Display module and display device

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113870728A (en) * 2021-09-03 2021-12-31 深圳创维－Rgb电子有限公司 Display back plate, display module and manufacturing method of display module
CN113903260A (en) * 2021-09-30 2022-01-07 京东方科技集团股份有限公司 Display module and display device
CN114364170A (en) * 2022-01-07 2022-04-15 京东方科技集团股份有限公司 Heat dissipation film and display device
CN114420863A (en) * 2022-01-10 2022-04-29 深圳市华星光电半导体显示技术有限公司 Display device and method for manufacturing the same
CN114550589A (en) * 2022-02-22 2022-05-27 武汉天马微电子有限公司 Display module and display device
CN115223451A (en) * 2022-07-28 2022-10-21 武汉天马微电子有限公司 Display module, preparation method thereof and display device
WO2023040607A1 (en) * 2021-09-14 2023-03-23 京东方科技集团股份有限公司 Display module and display device

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113870728A (en) * 2021-09-03 2021-12-31 深圳创维－Rgb电子有限公司 Display back plate, display module and manufacturing method of display module
WO2023040607A1 (en) * 2021-09-14 2023-03-23 京东方科技集团股份有限公司 Display module and display device
CN113903260A (en) * 2021-09-30 2022-01-07 京东方科技集团股份有限公司 Display module and display device
CN113903260B (en) * 2021-09-30 2024-01-02 京东方科技集团股份有限公司 Display module and display device
CN114364170A (en) * 2022-01-07 2022-04-15 京东方科技集团股份有限公司 Heat dissipation film and display device
CN114364170B (en) * 2022-01-07 2024-04-16 京东方科技集团股份有限公司 Heat dissipation film and display device
CN114420863A (en) * 2022-01-10 2022-04-29 深圳市华星光电半导体显示技术有限公司 Display device and method for manufacturing the same
CN114420863B (en) * 2022-01-10 2023-06-30 深圳市华星光电半导体显示技术有限公司 Display device and method for manufacturing the same
CN114550589A (en) * 2022-02-22 2022-05-27 武汉天马微电子有限公司 Display module and display device
CN115223451A (en) * 2022-07-28 2022-10-21 武汉天马微电子有限公司 Display module, preparation method thereof and display device

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