A display device

Abstract

The application provides a display device, which is characterized in that a first heat-conducting film layer and a second heat-conducting film layer are arranged around a heat source device, heat generated by the heat source device is quickly conducted into the second heat-conducting film layer by the first heat-conducting film layer, and then the heat is quickly and evenly radiated by the surface heat-conducting capacity of the second heat-conducting film layer, so that the heat generated by the heat source device is quickly conducted to the outside.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display device. Background Technology

[0002] With the continuous development of science and technology, people have put forward higher requirements for the performance and display quality of display devices.

[0003] As display resolutions increase, the heat generated by certain heat-generating components on the display device also increases. Excessive heat can cause display abnormalities and other problems, ultimately preventing the display panel from functioning properly and affecting its normal display.

[0004] The conventional heat dissipation method in the existing technology is to simply add some stacked sheet heat dissipation materials between heat source devices. However, since each heat dissipation material has its own shortcomings, the simple stacking of sheet heat dissipation materials cannot make good use of the advantages of each heat dissipation material. Furthermore, as the heat generation of heat source devices in display devices increases, this conventional heat dissipation method can no longer meet the heat dissipation requirements of current display devices.

[0005] Therefore, how to effectively dissipate heat from display devices is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0006] In view of this, in order to solve the above problems, the present invention provides a display device, the technical solution of which is as follows:

[0007] A display device, the display device comprising:

[0008] Display panel, heat source device located on the display panel;

[0009] A first thermally conductive film layer is located on one side of the display panel, and the first thermally conductive film layer covers the heat source device;

[0010] A second thermally conductive film layer is located inside the first thermally conductive film layer, and the second thermally conductive film layer at least partially surrounds the heat source device;

[0011] The first thermally conductive film layer is used to guide the heat generated by the heat source device into the second thermally conductive film layer, and the second thermally conductive film layer is used to dissipate the received heat uniformly on the plane where the second thermally conductive film layer is located.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows:

[0013] The present invention provides a display device by setting a first thermally conductive film layer and a second thermally conductive film layer around a heat source device. The first thermally conductive film layer is used to quickly conduct the heat generated by the heat source device into the second thermally conductive film layer. Then, the surface thermal conductivity of the second thermally conductive film layer is used to quickly and uniformly dissipate the heat, thereby rapidly conducting the heat generated by the heat source device to the outside. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0015] Figure 1 This is a partial structural schematic diagram of a display device provided in an embodiment of the present invention;

[0016] Figure 2 This is a schematic diagram of heat dissipation in a display device according to an embodiment of the present invention;

[0017] Figure 3 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention;

[0018] Figure 4 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention;

[0019] Figure 5 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention;

[0020] Figure 6 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention;

[0021] Figure 7 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention;

[0022] Figure 8 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention;

[0023] Figure 9 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention;

[0024] Figure 10 This is a top view schematic diagram of an insulating film layer provided in an embodiment of the present invention;

[0025] Figure 11This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] refer to Figure 1 , Figure 1 This is a partial structural schematic diagram of a display device provided in an embodiment of the present invention, with reference to... Figure 2 , Figure 2 This is a schematic diagram of heat dissipation in a display device according to an embodiment of the present invention. The display device includes:

[0029] Display panel 11, and heat source device 12 located on display panel 11.

[0030] A first thermally conductive film layer 13 is located on one side of the display panel 11, and the first thermally conductive film layer 13 covers the heat source device 12.

[0031] A second thermally conductive film layer 14 is located inside the first thermally conductive film layer 13, and the second thermally conductive film layer 14 at least partially surrounds the heat source device 12.

[0032] The first thermal conductive film layer 13 is used to guide the heat generated by the heat source device 12 into the second thermal conductive film layer 14, and the second thermal conductive film layer 14 is used to dissipate the received heat uniformly on the plane where the second thermal conductive film layer 14 is located.

[0033] Specifically, in the embodiments of the present invention, the first thermally conductive film layer 13 can be a thermally conductive film layer with isotropic thermal conductivity and good thermal conductivity performance. That is to say, the thermal conductivity of the first thermally conductive film layer 13 is the same in the XYZ directions. Optionally, the first thermally conductive film layer 13 can be a metal film layer, such as a copper foil or other thermally conductive film layer.

[0034] The second thermally conductive film layer 14 can be a thermally conductive film layer with excellent surface thermal conductivity, and optionally the second thermally conductive film layer 14 can be a graphene film layer, etc.

[0035] It should be noted that, in this embodiment of the invention, the first thermally conductive film layer 13 is a copper foil and the second thermally conductive film layer 14 is a graphene film layer as an example.

[0036] In other words, in this display device, a first thermally conductive film layer 13 and a second thermally conductive film layer 14 are provided around the heat source device 12. The heat generated by the heat source device 12 is quickly transferred to the second thermally conductive film layer 14 by the first thermally conductive film layer 13. Then, the heat is quickly and uniformly dissipated by the surface thermal conductivity of the second thermally conductive film layer 14, thereby quickly conducting the heat generated by the heat source device 12 to the outside.

[0037] It should be noted that, Figure 2 The direction indicated by the middle arrow is the direction of heat conduction. Most of the heat generated by the heat source device 12 is quickly conducted into the second heat conduction film layer 14 by the first heat conduction film layer 13, and a small portion of the heat is also directly conducted to the outside through the first heat conduction film layer 13 above the heat source device 12.

[0038] In summary, the display device provided in this embodiment of the invention utilizes the isotropic thermal conductivity of copper foil as a thermal conductive material and the anisotropic thermal conductivity of graphene film as a heat dissipation material to conduct heat to the outside.

[0039] Furthermore, the second thermal conductive film layer 14 is disposed around the heat source device 12, which can effectively reduce the material stacking thickness above the heat source device 12 while taking into account heat dissipation, which is beneficial to the thinner and lighter design of the display device.

[0040] Optionally, the heat source device 12 includes, but is not limited to, a driver chip for controlling the operating state of the display device.

[0041] Optionally, in another embodiment of the invention, reference is made to... Figure 3 , Figure 3 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention.

[0042] The first thermally conductive film layer 13 includes a first part AA, a second part BB, and a third part CC.

[0043] The first part AA is located on the side of the heat source device 12 away from the display panel 11.

[0044] The second part BB is located on the side of the display panel 11 where the heat source device 12 is located.

[0045] One end of the third part CC is in contact with the first part AA, and the other end is in contact with the second part BB.

[0046] There is a gap between the third part CC and the heat source device 12, and the second thermally conductive film layer 14 is located inside the second part BB.

[0047] like Figure 3As shown, the display device also includes a third thermally conductive film layer 15 located between the third part CC and the heat source device 12.

[0048] The third thermally conductive film layer 15 is used to direct the heat generated by the heat source device 12 into the third part CC.

[0049] Specifically, in this embodiment of the invention, since the third part CC is inclined and there is a certain gap between it and the heat source device 12, a third thermally conductive film layer 15 can be set in this gap. At this time, the third thermally conductive film layer 15 is in contact with the heat source device 12 and the third part CC respectively. At this time, the heat emitted from the side wall of the heat source device 12 can be quickly conducted to the third part CC through the third thermally conductive film layer 15, and then quickly conducted to the second thermally conductive film layer 14 in the second part BB through the third part CC. Based on the excellent surface thermal conductivity of the second thermally conductive film layer 14, the heat can be quickly and evenly heated, thereby quickly conducting the heat generated by the heat source device 12 to the outside.

[0050] Optionally, the third thermally conductive film layer 15 includes at least a thermally conductive adhesive film layer, wherein the thermally conductive adhesive can be a one-component, thermally conductive, room-temperature curing silicone adhesive sealant. It is vulcanized into a high-performance elastomer by releasing low-molecular-weight substances through a condensation reaction with moisture in the air, causing cross-linking and curing. The thermally conductive adhesive has excellent resistance to thermal cycling, aging resistance, and electrical insulation properties, and also exhibits excellent moisture resistance, shock resistance, corona resistance, non-swelling, leakage resistance, and chemical resistance. It can be used continuously in temperature environments ranging from -60℃ to 280℃ while maintaining its performance. It has good adhesion to most metallic and non-metallic materials.

[0051] In other words, in this embodiment of the invention, the use of a thermally conductive adhesive film layer as the third thermally conductive film layer 15 not only achieves thermal conductivity but also serves to bond the thermally conductive film layer and the heat source device 12, thereby improving the structural stability of the display device.

[0052] Optionally, in another embodiment of the invention, reference is made to... Figure 4 , Figure 4 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention.

[0053] The display device further includes:

[0054] Conductive foam 16 located between the third thermally conductive film layer 15 and the third portion CC.

[0055] Specifically, in this embodiment of the invention, the conductive foam 16 can be ordinary conductive foam, nickel-plated copper conductive foam, gold-plated conductive foam, carbon-plated conductive foam, tin-plated conductive foam, conductive aluminum foil foam, conductive copper foil foam, etc. Its material is very light and has electromagnetic shielding performance. While playing a role in heat conduction, it also achieves electrostatic protection for the heat source device 12 and prevents external signals from interfering with the heat source device 12.

[0056] based on Figure 4 In the display device shown, a portion of the heat generated by the heat source device 12 is conducted through the third thermal conductive film layer 15 and the conductive foam 16 to the third part CC of the first thermal conductive film layer 13, and then quickly conducted through the third part CC to the second thermal conductive film layer 14 in the second part BB. Based on the excellent surface thermal conductivity of the second thermal conductive film layer 14, the heat can be quickly and evenly distributed, thereby quickly conducting the heat generated by the heat source device 12 to the outside.

[0057] Optionally, in another embodiment of the invention, reference is made to... Figure 5 , Figure 5 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention.

[0058] The display device further includes:

[0059] The microwave absorbing film layer 17 is located between the first part AA and the heat source device 12.

[0060] Specifically, in this embodiment of the invention, a microwave absorbing film layer 17 is provided between the first part AA and the heat source device 12. The microwave absorbing film layer 17 can also conduct heat and prevent external signals from interfering with the heat source device 12, thereby improving the stability of the operation of the heat source device 12.

[0061] It should be noted that, Figure 5 The third thermally conductive film layer 15 and conductive foam 16 are not included in the reference. Figure 6 , Figure 6 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention. Figure 6 A third thermally conductive film layer 15 and a wave-absorbing film layer 17 are provided in the middle, for reference. Figure 7 , Figure 7 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention. Figure 7 The device is provided with a third thermally conductive film layer 15, a conductive foam 16, and a wave-absorbing material film layer 17. In other words, in the embodiments of the present invention, if the technical features do not conflict, technical features can be selectively selected or combined to improve the display device.

[0062] Optionally, in another embodiment of the invention, reference is made to... Figure 8 ,Figure 8 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention.

[0063] The display device further includes:

[0064] The fourth thermal conductive film layer 18 is located on the side of the first thermal conductive film layer 13 facing the display panel 11.

[0065] Specifically, in this embodiment of the invention, the fourth thermally conductive film layer 18 includes, but is not limited to, a modified adhesive film layer. That is, a high thermal conductivity filler is added to the side of the first thermally conductive film layer 13 facing the display panel 11, so that the heat generated by the heat source device 12 can be more easily conducted to the first thermally conductive film layer 13, thereby achieving rapid heat exchange.

[0066] It should be noted that the technical feature of setting the fourth thermal conductive film layer 18 can also be flexibly combined with the non-conflicting technical features provided in the above embodiments to achieve improvements to the display device.

[0067] Optionally, in another embodiment of the invention, reference is made to... Figure 9 , Figure 9 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention.

[0068] The display device further includes:

[0069] An insulating film layer 19 is located on the side of the first thermally conductive film layer 13 that is away from the display panel 11.

[0070] Specifically, in this embodiment of the invention, an insulating film layer 19 is provided on the side of the first thermally conductive film layer 13 away from the display panel 11 to achieve insulation protection of the thermally conductive film layer, prevent external factors from interfering with the thermally conductive film layer, and thereby further optimize the thermal conductivity of the display device.

[0071] Optionally, in another embodiment of the invention, reference is made to... Figure 10 , Figure 10 This is a top view schematic diagram of an insulating film layer provided in an embodiment of the present invention.

[0072] The insulating film layer 19 has a plurality of through holes 20 penetrating the insulating film layer. The plurality of through holes 20 can be arranged in an array.

[0073] Specifically, in this embodiment of the invention, in order to avoid the insulating film layer 19 interfering with the heat exchange with the outside world, the insulating film layer 19 is improved to have multiple through holes 20 penetrating through itself. At this time, the heat of the entire heat conduction process can be quickly exchanged with the outside world through the multiple through holes 20 on the insulating film layer 19.

[0074] The multiple through holes 20 on the insulating film layer 19 can be arranged in an array, or the distribution of the through holes 20 can be reasonably set based on the heat distribution during the heat conduction process. For example, the through hole density in the area where the second thermal conductive film layer 14 is located can be larger, and the through hole density in the other areas of the first thermal conductive film layer 13 where the second thermal conductive film layer 14 is not set can be relatively smaller, so as to ensure that the heat can be conducted out as quickly as possible.

[0075] Optionally, in another embodiment of the invention, reference is made to... Figure 11 , Figure 11 This is a partial structural schematic diagram of another display device provided in an embodiment of the present invention.

[0076] The first thermal conductive film layer 13 includes a first sub-thermal conductive film layer 13a and a second sub-thermal conductive film layer 13b stacked together.

[0077] The second sub-thermal conductive film layer 13b is located between the first sub-thermal conductive film layer 13a and the display panel 11.

[0078] The second thermal conductive film layer 14 is located between the first sub-thermal conductive film layer 13a and the second sub-thermal conductive film layer 13b.

[0079] Specifically, in this embodiment of the invention, the first thermal conductive film layer 13 can be formed by stacking two sub-thermal conductive film layers, and the second thermal conductive film layer 14 is disposed in the corresponding area between the two sub-thermal conductive film layers.

[0080] It should be noted that the first sub-thermal conductive film layer 13a and the second sub-thermal conductive film layer 13b are thermally isotropic and have good thermal conductivity. That is, the thermal conductivity of the first sub-thermal conductive film layer 13a and the second sub-thermal conductive film layer 13b is the same in the XYZ directions. The first sub-thermal conductive film layer 13a and the second sub-thermal conductive film layer 13b can be metal film layers, such as copper foil. The materials of the first sub-thermal conductive film layer 13a and the second sub-thermal conductive film layer 13b can be the same or different. In this embodiment of the invention, the example is that both the first sub-thermal conductive film layer 13a and the second sub-thermal conductive film layer 13b are copper foil.

[0081] The above provides a detailed description of a display device provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0082] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0083] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that elements inherent to a process, method, article, or apparatus that comprises a list of elements, or elements inherent to such processes, methods, articles, or apparatus, are also included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0084] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display device, characterized in that, The display device includes: Display panel, heat source device located on the display panel; A first thermally conductive film layer is located on one side of the display panel, and the first thermally conductive film layer covers the heat source device; A second thermally conductive film layer located inside the first thermally conductive film layer, the second thermally conductive film layer at least partially surrounding the heat source device; Wherein, the first thermal conductive film layer is used to guide the heat generated by the heat source device into the second thermal conductive film layer, and the second thermal conductive film layer is used to dissipate the received heat uniformly on the plane where the second thermal conductive film layer is located. The display device further includes: an insulating film layer located on the side of the first thermally conductive film layer opposite to the display panel; the insulating film layer has a plurality of through holes penetrating the insulating film layer; the density of through holes is different in different regions of the insulating film layer; The second thermally conductive film layer located inside the first thermally conductive film layer, and the second thermally conductive film layer at least partially surrounding the heat source device, includes: the first thermally conductive film layer comprising a first sub-thermally conductive film layer and a second sub-thermally conductive film layer stacked together; the second sub-thermally conductive film layer located between the first sub-thermally conductive film layer and the display panel; the second thermally conductive film layer located between the first sub-thermally conductive film layer and the second sub-thermally conductive film layer, and the second thermally conductive film layer at least partially surrounding the heat source device.

2. The display device according to claim 1, characterized in that, The first thermally conductive film layer includes a first part, a second part, and a third part; The first part is located on the side of the heat source device that is away from the display panel; The second part is located on the side of the display panel where the heat source device is located; One end of the third part is in contact with the first part, and the other end is in contact with the second part; There is a gap between the third part and the heat source device.

3. The display device according to claim 2, characterized in that, The display device further includes: A third thermally conductive film layer is located between the third part and the heat source device; The third thermally conductive film layer is used to direct the heat generated by the heat source device into the third part.

4. The display device according to claim 3, characterized in that, The third thermally conductive film layer includes a thermally conductive adhesive film layer.

5. The display device according to claim 4, characterized in that, The display device further includes: Conductive foam located between the third thermally conductive film layer and the third part.

6. The display device according to claim 2, characterized in that, The display device further includes: The microwave absorbing film layer is located between the first part and the heat source device.

7. The display device according to claim 1, characterized in that, The display device further includes: The fourth thermal conductive film layer is located on the side of the first thermal conductive film layer facing the display panel.

8. The display device according to claim 7, characterized in that, The fourth thermally conductive film layer is a modified adhesive film layer.

9. The display device according to claim 1, characterized in that, The first thermally conductive film layer is a metal film layer.

10. The display device according to claim 1, characterized in that, The second thermally conductive film layer is a graphene film layer.

Images