A display device
By using the circulating cooling components and heat dissipation components in the fluid heat dissipation module, the problem of heat affecting display effect and lifespan of the display screen is solved, achieving efficient heat dissipation and extended lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-06-30
- Publication Date
- 2026-04-03
AI Technical Summary
The heat generated by the display screen during use affects the display effect and lifespan.
A fluid cooling module is adopted, including a circulating cooling component and a heat dissipation component. The heat generated by the display panel is dissipated through the first fluid chamber and the second fluid chamber. The fluid inlet and outlet are connected to the circulating cooling component to achieve effective heat dissipation.
While ensuring display quality, the effects of excessive heat on the display panel are avoided, extending its lifespan and saving space.
Smart Images

Figure CN115643718B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to display technology, and more particularly to a display device. Background Technology
[0002] With the development of display technology, displays have been widely used in people's production and daily life. Taking mobile phones as an example, smartphones are becoming increasingly widely used and have more and more functions, making them an essential electronic device in people's daily lives.
[0003] However, the display screen generates a lot of heat during use, which not only affects the display effect but also the lifespan of the display screen. Summary of the Invention
[0004] This invention provides a display device that dissipates heat from the surface of the display panel adjacent to the heat dissipation module by setting a heat dissipation component and a circulating cooling component in the fluid heat dissipation module. While ensuring the display effect of the display panel, it can avoid the lifespan of the display panel due to excessive heat.
[0005] An embodiment of the present invention provides a display device, including a display panel and a fluid heat dissipation module, wherein the fluid heat dissipation module includes a circulating cooling component and at least one heat dissipation component;
[0006] The heat dissipation assembly includes a first fluid cavity adjacent to a first surface of the display panel and a second fluid cavity adjacent to a second surface of the display panel, wherein the first fluid cavity and the second fluid cavity are in communication.
[0007] The heat dissipation assembly includes at least one fluid inlet disposed at one end of the first fluid cavity and at least one fluid outlet disposed at one end of the second fluid cavity, and both the fluid inlet and the fluid outlet are connected to the circulating cooling assembly.
[0008] The display device provided in this embodiment of the invention includes a display panel and a fluid heat dissipation module. The fluid heat dissipation module includes a circulating cooling component and at least one heat dissipation component. The heat dissipation component includes a first fluid cavity and a second fluid cavity that are adjacent to two surfaces of the display panel, respectively. A fluid inlet and a fluid outlet connected to the circulating cooling component are provided in the heat dissipation component. That is, the fluid heat dissipation module can effectively dissipate the heat generated by the display panel through the first fluid cavity and the second fluid cavity, avoiding the impact of excessive heat on the service life of the display panel. Attached Figure Description
[0009] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention;
[0010] Figure 2A schematic diagram of the structure of a display panel provided in an embodiment of the present invention;
[0011] Figure 3 for Figure 2 A schematic diagram of a structure with a central section line BB';
[0012] Figure 4 for Figure 1 A schematic diagram of a structure along the central section line AA';
[0013] Figure 5 This is a top view of a display device provided in an embodiment of the present invention;
[0014] Figure 6 for Figure 5 A schematic diagram of a structure with a central section line CC';
[0015] Figure 7 This is a top view of a display device provided in an embodiment of the present invention;
[0016] Figure 8 for Figure 7 A schematic diagram of a structure along the central section line DD';
[0017] Figure 9 This is a top view of a display device provided in an embodiment of the present invention;
[0018] Figure 10 for Figure 9 A schematic diagram of a structure with a central section line EE';
[0019] Figure 11 This is a top view of another display device provided in an embodiment of the present invention;
[0020] Figure 12 for Figure 11 A schematic diagram of a structure with a central section line FF';
[0021] Figure 13 This is a top view of another display device provided in an embodiment of the present invention;
[0022] Figure 14 for Figure 13 A schematic diagram of a structure with a central section line GG';
[0023] Figure 15 for Figure 13 Another structural schematic diagram of the section line GG' along the center;
[0024] Figure 16 for Figure 1 A schematic diagram of a structure with a central cross section line HH';
[0025] Figure 17 A schematic diagram of a connection point provided in an embodiment of the present invention;
[0026] Figure 18 This is a schematic diagram of another connection point provided in an embodiment of the present invention;
[0027] Figure 19 This is a schematic diagram of a heat dissipation component provided in an embodiment of the present invention;
[0028] Figure 20 This is a schematic diagram of another heat dissipation component provided in an embodiment of the present invention;
[0029] Figure 21 This is a schematic diagram of another heat dissipation component provided in an embodiment of the present invention;
[0030] Figure 22 This is a schematic diagram of another heat dissipation component provided in an embodiment of the present invention;
[0031] Figure 23 This is a top view of another display device provided in an embodiment of the present invention;
[0032] Figure 24 This is a schematic diagram of a circulating cooling assembly provided in an embodiment of the present invention. Detailed Implementation
[0033] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.
[0034] Various modifications and variations can be made to this invention without departing from its spirit or scope, as will be apparent to those skilled in the art. Therefore, this invention is intended to cover modifications and variations falling within the scope of the corresponding claims (the claimed technical solutions) and their equivalents. It should be noted that the embodiments provided in this invention can be combined with each other without contradiction.
[0035] Figure 1 This is a schematic diagram of the structure of a display device provided in an embodiment of the present invention. Figure 2 This is a schematic diagram of the structure of a display panel provided in an embodiment of the present invention. Figure 3 for Figure 2 A schematic diagram of a structure along the central section line BB'. Figure 4 for Figure 1 A structural schematic diagram along the central section line AA', for reference. Figures 1 to 4As shown, the display device 10 provided in this embodiment of the invention includes a display panel 100 and a fluid heat dissipation module. The fluid heat dissipation module includes a circulating cooling assembly 220 and at least one heat dissipation assembly 210. The heat dissipation assembly 210 includes a first fluid cavity 211 adjacent to a first surface 100A of the display panel 100 and a second fluid cavity 212 adjacent to a second surface 100B of the display panel 100. The first fluid cavity 211 and the second fluid cavity 212 are connected. The heat dissipation assembly 210 includes at least one fluid inlet 230 disposed at one end of the first fluid cavity 211 and at least one fluid outlet 240 disposed at one end of the second fluid cavity 212. Both the fluid inlet 230 and the fluid outlet 240 are connected to the circulating cooling assembly 220.
[0036] Among them, such as Figure 1 As shown, the display device 10 includes a display panel 100, which is used to implement the display function of the display device 10. For example, the display device 10 can be any electronic product with display function, including but not limited to the following categories: television, laptop, desktop monitor, tablet computer, digital camera, smart bracelet, smart glasses, vehicle display, medical device, industrial control equipment, touch interactive terminal, etc., and the embodiments of the present invention do not make any special limitations in this regard.
[0037] Specifically, such as Figure 2 and Figure 3As shown, the display panel 100 includes a driving substrate 110 and a plurality of light-emitting elements 120. The light-emitting elements 120 are located on one side of the driving substrate 110 and electrically connected to the driving substrate 110 for driving the light-emitting elements 120 to emit light. Further, the driving substrate 110 also includes a plurality of driving circuits 130 corresponding to the light-emitting elements 120, which drive the light-emitting elements 120 to emit light. Specifically, the driving circuit 130 may include at least one thin-film transistor 130A, which includes an active drain 131, a gate 132, and an active layer 133. Furthermore, the electrode structure of the light-emitting element 120 is electrically connected to the connection structure 140, specifically realizing the driving of the light-emitting element 120 to emit light. Meanwhile, the driving substrate 110 includes alternately disposed insulating layers and metal layers, such as a first metal layer, a buffer layer, a gate insulating layer, an active layer, an inter-metal insulating layer, a second metal layer, an inter-layer insulating layer, a capacitor plate layer, a third metal layer, a first insulating layer, a first planarization layer, and a pixel definition layer, etc. Exemplary implementations of the driving circuit 130 and each film layer can be customized by those skilled in the art according to actual conditions, and are not limited here. The display panel 100 achieves its display effect by driving multiple light-emitting elements 120 to emit light. However, the light-emitting elements 120 generate significant heat during the light-emitting process. This heat not only affects the lifespan of the light-emitting elements 120 but also the lifespan of the devices driving the light-emitting elements 120 in the display panel 100. In this embodiment of the invention, by promptly dissipating the heat generated by the light-emitting elements 120 through a heat dissipation assembly, the lifespan of the display panel 100 is extended while ensuring the display effect of the display device 10.
[0038] Specifically, such as Figure 1 As shown, the display device 10 also includes a fluid heat dissipation module, which has the function of heat dissipation. When it comes into contact with the display panel 100, it can effectively dissipate the heat generated in the display panel 100 in a timely manner, ensuring that the display panel 100 will not have its service life affected by high heat.
[0039] Furthermore, the fluid heat dissipation module includes a circulating cooling component 220 and a heat dissipation component 210. The heat dissipation component 210 is in contact with the display panel 100. By using a heat dissipation medium flowing in the heat dissipation component 210 to absorb the heat generated in the display panel 100, the heat is circulated to the circulating cooling component 220 to dissipate the heat, preventing the display panel 100 from operating at high temperatures. Simultaneously, the circulating cooling component 220 is interconnected with the heat dissipation component 210 to dissipate the heat absorbed by the heat dissipation component 210, while also providing the fluid flow power for the heat dissipation component 210 to circulate heat dissipation over the display panel 100. This ensures that the display panel 100 can continuously operate in a low-temperature environment, extending the lifespan of the display panel 100.
[0040] Specifically, the heat dissipation component 210 includes a first fluid cavity 211 and a second fluid cavity 212. The first fluid cavity 211 and the second fluid cavity 212, being adjacent to the surface of the display panel 100, can absorb heat generated on the surface of the display panel 100 in a timely manner and carry it away through flow. The display panel 100 includes a first surface 100A and a second surface 100B, which are two surfaces arranged opposite to each other. Either the first surface 100A or the second surface 100B can be the light-emitting surface (display surface) of the display panel 100, i.e., the display surface, through which the display panel 100 performs its display function. The other surface can be a non-light-emitting surface (non-display surface) corresponding to the display surface. This embodiment of the invention does not specifically limit this. Furthermore, the heat generated by the first surface 100A is absorbed and carried away by the first fluid cavity 211, and the heat generated by the second surface 100B is absorbed and carried away by the second fluid cavity 212. Simultaneously, the first fluid cavity 211 and the second fluid cavity 212 are connected, ensuring the flow of the heat dissipation medium in the heat dissipation assembly 210 and guaranteeing the absorption of heat from the display panel 100. This also prevents the heat dissipation medium from remaining stagnant in the heat dissipation assembly 210, thus preventing heat concentration and non-dissipation. Furthermore, the heat dissipation assembly 210 includes a fluid inlet 230 and a fluid outlet 240, which facilitate the circulation of the heat dissipation medium within the heat dissipation assembly 210, thereby enabling the heat dissipation assembly 210 to dissipate heat from the display panel 100. The heat dissipation assembly 210 is also connected to the circulating cooling assembly 220 via the fluid inlet 230 and fluid outlet 240, ensuring the effective heat dissipation of both the heat dissipation assembly 210 and the circulating cooling assembly 220. In other words, the fluid cooling module effectively dissipates the heat generated by the display panel 100 through the first fluid cavity 211 and the second fluid cavity 212, preventing excessive heat from affecting the lifespan of the display panel 100. Furthermore, compared to existing display devices that add heat sinks and fans to the display panel or the non-display area of the display panel, the display device 10 provided in this embodiment of the invention saves more installation space, and can also provide heat dissipation components 210 on the light-emitting display surface of the display panel 100 to improve the heat dissipation effect of the display panel 100.
[0041] In summary, the display device provided by the embodiments of the present invention includes a display panel and a fluid heat dissipation module. The fluid heat dissipation module can effectively dissipate the heat generated by the display panel through the first fluid cavity and the second fluid cavity, thereby avoiding the impact of excessive heat on the service life of the display panel.
[0042] Optionally, the first fluid cavity 211 is a transparent structure, and the first fluid cavity 211 is disposed adjacent to the light-emitting surface of the display panel 100.
[0043] Specifically, the first fluid cavity 211 is located on the light-emitting surface of the display panel 100. When the first fluid cavity 211 is a transparent structure, the first fluid cavity 211 will not affect the display of the display panel 100. That is, while ensuring the display effect of the display panel 100, the heat generated by the display panel 100 is dissipated through the first fluid cavity 211.
[0044] Optionally, both the first fluid cavity 211 and the second fluid cavity 212 are transparent structures, and the display panel 100 is a transparent display panel.
[0045] Specifically, the first fluid cavity 211 and the second fluid cavity 212 are located on both sides of the display panel 100. If the display panel 100 is a transparent display panel, it is required that neither the first fluid cavity 211 nor the second fluid cavity 212 obstructs the display panel 100 and does not affect the display effect of the display panel 100. Specifically, both the first fluid cavity 211 and the second fluid cavity 212 are set as transparent structures, that is, while ensuring the display effect of the display panel 100, the heat generated by the display panel 100 is dissipated through the first fluid cavity 211. Transparent display panels can be used in window displays, vehicle displays, and other fields.
[0046] Optional, see reference Figure 3 As shown, the display panel 100 is a self-emissive display panel, which includes multiple light-emitting elements.
[0047] Figure 3 The example uses three light-emitting elements 120, wherein the light-emitting elements 120 include at least one of organic light-emitting diodes, sub-millimeter light-emitting diodes, or micro light-emitting diodes. The embodiments of the present invention do not specifically limit the type of light-emitting element 120.
[0048] Figure 5 This is a top view of a display device according to an embodiment of the present invention. Figure 6 for Figure 5 A schematic diagram of a structure along the central section CC'. Figure 7 This is a top view of a display device according to an embodiment of the present invention. Figure 8 for Figure 7 A structural schematic diagram along the central section DD', for reference. Figures 5 to 8 As shown, the display panel 100 includes a signal input terminal 150 located at one end of the display panel 100. Along a direction h perpendicular to the plane where the display panel 100 is located, at least one of the fluid inlet 230 and the fluid outlet 240 overlaps at least partially with the signal input terminal 150.
[0049] Specifically, the display panel 100 includes a signal input terminal 150. The signal input terminal 150 drives the light-emitting element 120 in the display panel 100 to emit light. The signal input terminal 150 is a collection of signal lines that electrically connect the light-emitting element 120 to the driving chip. That is, the signal lines of the driving chip are fanned out through the signal input terminal 150. These signal lines can be data signal lines, touch signal lines, or power supply voltage signal lines, etc. This embodiment of the invention does not impose specific limitations on this. (Refer to...) Figure 5 As shown, the signal line distribution density at the signal input terminal 150 is relatively high, and the heat generated is also high. That is, the heat dissipation component 210 can further improve the heat dissipation effect of the fluid heat dissipation module on the display panel 100 by dissipating the heat at the signal input terminal 150.
[0050] Specifically, the fluid inlet 230 and fluid outlet 240 of the heat dissipation assembly 210 also carry the heat dissipation medium flowing within the heat dissipation assembly 210, meaning that the fluid inlet 230 and fluid outlet 240 also have a heat dissipation function. Furthermore, the flow rate of the heat dissipation medium at the fluid inlet 230 and fluid outlet 240 is relatively high, and the heat dissipation medium has not yet absorbed heat before reaching the fluid inlet 230, meaning that the heat dissipation effect at the fluid inlet 230 and fluid outlet 240 is good. By partially overlapping the signal input terminal 150 with the fluid inlet 230 and fluid outlet 240, it can be ensured that the heat generated by the signal input terminal 150 is dissipated in a timely manner. For example, as... Figure 6 As shown, the signal input terminal 150 partially overlaps with the fluid inlet 230. Furthermore, the signal input terminal 150 may also partially overlap with the fluid outlet 240 (not specifically shown in the figure). Alternatively, as... Figure 8 As shown, when there are two signal input terminals 150, the signal input terminals 150 partially overlap with both the fluid inlet 230 and the fluid outlet 240. This embodiment of the invention does not impose specific limitations on this.
[0051] Continue to refer to Figure 7 and Figure 8 As shown, the signal input terminal 150 includes a first signal input terminal 151 and a second signal input terminal 152. Along the direction h perpendicular to the plane where the display panel 100 is located, the fluid inlet 230 overlaps at least partially with the first signal input terminal 151, and the fluid outlet 240 overlaps at least partially with the second signal input terminal 152.
[0052] The signal input terminal 150 includes a first signal input terminal 151 and a second signal input terminal 152. By appropriately adding more signal input terminals 150, the heat generated at the signal input terminals 150 can be distributed.
[0053] Furthermore, such as Figure 7 and Figure 8 As shown, the first signal input terminal 151 and the fluid inlet 230 partially overlap, meaning the fluid inlet 230 can dissipate the heat generated by the first signal input terminal 151. Similarly, the second signal input terminal 152 and the fluid outlet 240 partially overlap, meaning the fluid outlet 240 can dissipate the heat generated by the second signal input terminal 152. In other words, the heat dissipation assembly 210 can dissipate heat from the surface of the display panel 100 while simultaneously dissipating heat generated at the signal input terminals 150. Furthermore, it ensures heat dissipation is possible even with multiple signal input terminals 150, thus improving the heat dissipation effect of the display panel 100 in the display device 10.
[0054] Figure 9 This is a top view of a display device according to an embodiment of the present invention. Figure 10 for Figure 9 A structural schematic diagram of the section line EE', see reference. Figures 5 to 10 As shown, along a direction h perpendicular to the plane where the display panel 100 is located, at least one of the fluid inlet 230 and the fluid outlet 240 completely covers the signal input terminal 150.
[0055] The heat generated at the signal input terminal 150 in the display panel 100 is relatively high. If at least one of the fluid inlet 230 and the fluid outlet 240 completely covers the signal input terminal 150, the heat generated in the display panel 100 can be effectively dissipated in a timely manner, thereby extending the service life of the display panel 100 in the display device 10.
[0056] Among them, such as Figure 5 and Figure 6 As shown, the signal input terminal 150 only overlaps with the fluid inlet 230, meaning that the heat generated by the signal input terminal 150 can be dissipated through the fluid inlet 230. Figure 9 and Figure 10 As shown, the signal input terminal 150 overlaps with both the fluid inlet 230 and the fluid outlet 240, meaning that the heat generated by the signal input terminal 150 can be dissipated through both the fluid inlet 230 and the fluid outlet 240. (Reference) Figure 7 and Figure 8 As shown, when the number of signal input terminals 150 is not unique and there is a distance between different signal input terminals 150, different signal input terminals 150 can overlap with the fluid inlet 230 and the fluid outlet 240 respectively. This embodiment of the invention does not impose specific limitations on this. Furthermore, Figure 7 and Figure 8In this configuration, the fluid inlet 230 and the fluid outlet 240 are offset, meaning that along the direction h perpendicular to the plane of the display panel 100, the fluid inlet 230 and the fluid outlet 240 do not overlap. Figure 9 and Figure 10 In this embodiment, the fluid inlet 230 and the fluid outlet 240 are arranged in an overlapping manner, that is, along the direction h perpendicular to the plane where the display panel 100 is located, the fluid inlet 230 and the fluid outlet 240 overlap. In general, based on the need for heat dissipation of the signal input terminal 150, the positions of the fluid inlet 230 and the fluid outlet 240 can be adaptively adjusted, and the embodiments of the present invention do not impose specific positional limitations on this.
[0057] Figure 11 This is a top view schematic diagram of another display device provided in an embodiment of the present invention. Figure 12 for Figure 11 A structural schematic diagram along the central section line FF', for reference. Figure 11 and Figure 12 As shown, the display panel 100 also includes a driver chip 160. The first signal input terminal 151 and the second signal input terminal 152 are both electrically connected to the driver chip 160. The projection of the driver chip 160 on the display panel 100 is located between the projections of the first signal input terminal 151 and the second signal input terminal 152 on the display panel 100. Along the direction h perpendicular to the plane where the display panel 100 is located, at least one of the fluid inlet 230 and the fluid outlet 240 overlaps at least partially with the driver chip 160.
[0058] Specifically, the display panel 100 also includes a driver chip 160, which is used to drive the light-emitting elements (not shown in the figure) in the display panel 100 to emit light. That is, the driver chip 160 drives the light-emitting elements in the display panel 100 to emit light by being electrically connected to the first signal input terminal 151 and the second signal input terminal 152 respectively.
[0059] Furthermore, the driver chip 160 also generates heat when driving the light-emitting elements of the display panel 100. This heat can affect the display panel 100. Therefore, a fluid cooling module is used to dissipate heat and prevent it from affecting the display and lifespan of the display panel 100. Specifically, the position of the fluid inlet 230 or fluid outlet 240 is adjusted to ensure that the fluid inlet 230 or fluid outlet 240 overlaps with the driver chip 160, thereby dissipating the heat generated by the driver chip 160. For example, refer to... Figure 12As shown, while fluid inlet 230 and fluid outlet 240 overlap with the first signal input terminal 151 and the second signal input terminal 152 respectively, there are also other fluid inlet 230 and fluid outlet 240 that overlap with the driver chip 160, thus ensuring heat dissipation through the fluid heat dissipation module. For example, the driver chip 160 may also overlap with only one of the fluid inlet 230 or the fluid outlet 240; this embodiment of the invention does not impose specific limitations on this.
[0060] Figure 13 This is a top view schematic diagram of another display device provided in an embodiment of the present invention. Figure 14 for Figure 13 A schematic diagram of a structure along the central section line GG'. Figure 15 for Figure 13 Another structural schematic diagram along the central section line GG', see reference. Figures 13 to 15 As shown, the number of signal input terminals 150 is 'a', the number of fluid input ports 230 is 'b', and the number of fluid output ports 240 is 'c', where a = b + c; and a is an integer greater than 2, b is an integer greater than or equal to 1, and c is an integer greater than or equal to 1.
[0061] Among them, such as Figure 13 and Figure 14 As shown, the number of signal input terminals 150 is equal to the sum of the number of fluid input ports 230 and fluid output ports 240, ensuring that each signal input terminal 150 can overlap with either a fluid input port 230 or a fluid output port 240. All signal input terminals 150 are cooled by the heat dissipation component 210, improving the heat dissipation effect of the display panel 100. For example, the number of signal input terminals 150 is 'a', the number of fluid input ports 230 is 'b', and the number of fluid output ports 240 is 'c', with the quantity relationship satisfying a = b + c. (Refer to...) Figure 14 As shown, there are 4 signal input terminals 150, 2 fluid input ports 230, and 2 fluid output ports 240. This embodiment of the invention does not impose a specific limit on the number of signal input terminals 150, fluid input ports 230, and fluid output ports 240.
[0062] Further reference Figure 15 As shown, in order to further improve the heat dissipation effect of the fluid inlet 230 and fluid outlet 240 on the signal input terminal 150, it can also be ensured that each signal input terminal 150 overlaps with the fluid inlet 230 and fluid outlet 240, so as to better improve the heat dissipation effect of the display panel 100.
[0063] Continue to refer to Figure 4As shown, the first fluid cavity 211 includes a first end S1 and a second end S2 disposed opposite to each other in the first direction X, and the second fluid cavity 212 includes a third end S3 and a fourth end S4 disposed opposite to each other in the first direction X; the fluid inlet 230 is connected to the first end S1 of the first fluid cavity 211, the fluid outlet 240 is connected to the third end S3 of the second fluid cavity 212, and the second end S2 of the first fluid cavity 211 and the fourth end S4 of the second fluid cavity 212 are connected; the first end S1 of the first fluid cavity 211 and the third end S3 of the second fluid cavity 212 are both adjacent to the first end A1 of the display panel 100, and the second end S2 of the first fluid cavity 211 and the fourth end S4 of the second fluid cavity 212 are both adjacent to the second end A2 of the display panel 100.
[0064] The first fluid cavity 211 includes a first end S1 and a second end S2, which are positioned opposite each other in the first direction X. The second fluid cavity 212 includes a third end S3 and a fourth end S4, which are also positioned opposite each other in the first direction X. By connecting the second end S2 and the fourth end S4, the first fluid cavity 211 and the second fluid cavity 212 are connected, allowing the heat dissipation medium flowing in the heat dissipation assembly 210 to flow. Simultaneously, the first end S1 of the first fluid cavity 211 is connected to the fluid inlet 230, and the third end S3 of the second fluid cavity 212 is connected to the fluid outlet 240. This means that the medium flowing in the heat dissipation assembly 210 can enter the first fluid cavity 211 through the fluid inlet 230, then enter the second fluid cavity 212 from the first fluid cavity 211, and finally flow out from the fluid outlet 240 through the second fluid cavity 212, thus completing the overall heat dissipation process of the heat dissipation assembly 210.
[0065] The first fluid cavity 211 and the second fluid cavity 212 are both in contact with the display panel 100 to dissipate heat from the display panel 100. Specifically, the first end S1 of the first fluid cavity 211 and the third end S3 of the second fluid cavity 212 are both adjacent to the first end A1 of the display panel 100, and the second end S2 of the first fluid cavity 211 and the fourth end S4 of the second fluid cavity 212 are both adjacent to the second end A2 of the display panel 100. This ensures that the heat dissipation component 210 is arranged around the display panel 100, ensuring that the heat generated by the display panel 100 can be absorbed by the heat dissipation component 210 in a timely manner, and preventing the display panel 100 from overheating and affecting its lifespan.
[0066] Figure 16 for Figure 1 A structural schematic diagram along the central section line HH', please refer to... Figure 1 , Figure 4 and Figure 16As shown, the fifth end S5 of the first fluid cavity 211 is connected to the sixth end S6 of the second fluid cavity 212. The fifth end S5 of the first fluid cavity 211 is adjacent to the second end S2 of the first fluid cavity 211, and the sixth end S6 of the second fluid cavity 212 is adjacent to the fourth end S4 of the second fluid cavity 212.
[0067] The first fluid cavity 211 further includes a fifth end S5, and the second fluid cavity 212 further includes a sixth end S6. The fifth end S5 in the first fluid cavity 211 is adjacent to the second end S2, and the sixth end S6 in the second fluid cavity 212 is adjacent to the fourth end S4. (Reference) Figure 1 , Figure 4 and Figure 16 As shown, the second end S2 and the fourth end S4 are located on the side of the heat dissipation assembly 210 away from the fluid inlet 230 and the fluid outlet 240, and the fifth end S5 and the sixth end S6 are located on the side of the heat dissipation assembly 210, adjacent to the second end S2 and the fourth end S4 respectively.
[0068] That is, the heat dissipation medium flowing in the heat dissipation component 210 can flow into the second fluid cavity 212 through the second end S2 of the first fluid cavity 211 and the fourth end S4 of the second fluid cavity 212, or it can also flow into the second fluid cavity 212 through the fifth end S5 of the first fluid cavity 211 and the sixth end S6 of the second fluid cavity 212. This variety of flow modes of the heat dissipation medium in the heat dissipation component 210 improves the efficiency of heat absorption by the heat dissipation component 210.
[0069] Continue to refer to Figure 1 , Figure 4 and Figure 16 As shown, the first fluid cavity 211 and the second fluid cavity 212 are integrally connected.
[0070] For details, please refer to Figure 1 As shown, the first fluid cavity 211 and the second fluid cavity 212 can be connected at the connection point 300, that is, the first fluid cavity 211 and the second fluid cavity 212 are connected by connecting the second end S2 and the fourth end S4. Further, refer to... Figure 1 and Figure 16 As shown, the first fluid cavity 211 and the second fluid cavity 212 are connected by connecting the fifth end S5 and the sixth end S6. Alternatively, the first fluid cavity 211 and the second fluid cavity 212 are connected by connecting the second end S2 and the fourth end S4, and the first fluid cavity 211 and the second fluid cavity 212 are also connected by connecting the fifth end S5 and the sixth end S6. This embodiment of the invention does not impose specific limitations on this.
[0071] By connecting the first fluid cavity 211 and the second fluid cavity 212, the flow of the heat dissipation medium in the heat dissipation component 210 is ensured, that is, the heat dissipation component 210 absorbs the heat generated by the display panel 100 in a timely manner, so as to avoid the display panel 100 being affected by heat and its lifespan.
[0072] Furthermore, the first fluid cavity 211 and the second fluid cavity 212 are connected to form a receiving structure in which at least a portion of the display panel 100 is placed.
[0073] The first fluid cavity 211 and the second fluid cavity 212 are connected to form a accommodating structure that can accommodate the display panel 100. This ensures that the heat generated by the display panel 100 can be absorbed by the heat dissipation component 210 in a timely manner within the accommodating structure, preventing overheating from affecting the lifespan or display effect of the display panel 100. For example, the accommodating structure can be a U-shaped cavity formed by the connection of the first fluid cavity 211 and the second fluid cavity 212, allowing the display panel to be placed within the accommodating structure. The first fluid cavity 211 and the second fluid cavity 212 are in contact with the light-emitting surface and the non-light-emitting surface (back side) of the display panel, respectively. Alternatively, other cavity structures can be formed. This embodiment of the invention does not impose specific limitations on these forms, ensuring that the display panel 100 is stably placed within the accommodating structure to achieve heat dissipation for the display panel 100. Furthermore, the accommodating structure can completely cover the surface of the display panel 100, or it can cover only a portion of the surface of the display panel 100. This embodiment of the invention also does not impose specific limitations on these forms.
[0074] Figure 17 This is a schematic diagram of a connection point provided in an embodiment of the present invention. Figure 18 This is a schematic diagram of another connection point provided in an embodiment of the present invention, with reference to... Figure 1 , Figure 17 and Figure 18 As shown, the connection 300 between the first fluid cavity 211 and the second fluid cavity 212 includes a plurality of connecting pipes 213.
[0075] Among them, reference Figure 1 As shown, the first fluid cavity 211 and the second fluid cavity 212 are connected at the connection point 300 to ensure the flow of the heat dissipation medium in the heat dissipation component 210, that is, to dynamically absorb the heat of the display panel 100.
[0076] For details, please refer to Figure 17 and Figure 18As shown, the connection 300 includes multiple connecting pipes 213, which connect the first fluid cavity 211 and the second fluid cavity 212, ensuring that the fluid flowing into the first fluid cavity 211 can flow into the second fluid cavity 212. Furthermore, the multiple connecting pipes 213 can increase the fluid velocity between the first fluid cavity 211 and the second fluid cavity 212, ensuring the heat dissipation efficiency of the heat dissipation component 210 on the display panel 100.
[0077] Continue to refer to Figure 18 As shown, at least two connecting pipes 213 have different cross-sectional areas in the first section, wherein the first section is perpendicular to the extension direction Z of the connecting pipes 213.
[0078] For details, please refer to Figure 18 As shown, there are at least two connecting pipes 213A and 213B, and the cross-sectional areas of connecting pipes 213A and 213B in the first section are different, that is, the pipe diameters perpendicular to the extension direction Z of connecting pipes 213A and 213B are different. The flow rates of the fluid in the first fluid cavity 211 and the second fluid cavity 212 differ at different connection points. Therefore, by setting connecting pipes 213 with different cross-sectional areas, more efficient fluid flow can be ensured in both the first fluid cavity 211 and the second fluid cavity 212, thus ensuring the heat dissipation efficiency of the heat dissipation component 210 on the display panel 100.
[0079] For example, the diameter of connecting pipe 213A is L1, and the diameter of connecting pipe 213B is L2, wherein L1 is smaller than L2, that is, the cross-sectional area of connecting pipe 213A is smaller than the cross-sectional area of connecting pipe 213B. This embodiment of the invention does not limit the specific cross-sectional area of connecting pipe 213 or the number of connecting pipes.
[0080] Further reference Figure 18 As shown, in the extension direction Z perpendicular to the connecting pipe 213, along the direction Y from both sides of the connecting point 300 toward the center of the connecting point 300, the cross-sectional area of the connecting pipe 213 increases sequentially.
[0081] Specifically, based on the fluid motion law, the flow rate and velocity of the fluid in the first fluid cavity 211 and the second fluid cavity 212 meet the "normal distribution" or "normal distribution" law. That is, the fluid flow rate and velocity at the middle of the connection 300 will be greater than the fluid flow rate and velocity at the edge of the connection 300. By further setting the pipe diameter, i.e. the cross-sectional area, of the connecting pipe 213 at different positions of the connection 300, different flow rates and velocities of the fluid in the connecting pipe 213 can be achieved, which can more effectively ensure more efficient fluid flow in both the first fluid cavity 211 and the second fluid cavity 212, and ensure the heat dissipation efficiency of the heat dissipation component 210 on the display panel 100.
[0082] For details, please refer to Figure 18 As shown, the cross-sectional area of the connecting pipe 213 in the middle region of the connection 300 is slightly larger than the cross-sectional area of the connecting pipe 213 in the edge region of the connection 300, that is, the cross-sectional area of the connecting pipe 213A is smaller than the cross-sectional area of the connecting pipe 213B. The above two connecting pipes 213A and 213B illustrate the trend of the arrangement of the connecting pipe 213, and the embodiments of the present invention do not impose specific limitations on this.
[0083] Figure 19 This is a schematic diagram of a heat dissipation component provided in an embodiment of the present invention. Figure 20 This is a schematic diagram of another heat dissipation component provided in an embodiment of the present invention, with reference to... Figure 19 and Figure 20 As shown, at least one of the first fluid cavity 211 and the second fluid cavity 212 includes a plurality of sub-fluid cavities 214.
[0084] The first fluid cavity 211 and the second fluid cavity 212 include multiple sub-fluid cavities 214. These sub-fluid cavities 214 allow for zoned fluid flow in the first and second fluid cavities 211 and 212, ensuring different fluid flow rates and velocities. This guarantees that the fluid in each sub-fluid cavity 214 of the heat dissipation assembly 210 dissipates heat from the display panel 100 at appropriate flow rates and velocities, improving the flow efficiency of the fluid in the heat dissipation assembly 210 and thus enhancing its heat dissipation effect on the display panel 100. For example, refer to... Figure 19 As shown, taking the first fluid cavity 211 as an example, the first fluid cavity 211 includes multiple sub-fluid cavities 214. The arrows in the figure indicate the flow direction of the fluid, that is, the fluid is divided into sections for flow through the sub-fluid cavities 214. Similarly, refer to... Figure 20 As shown, the second fluid cavity 212 includes multiple sub-fluid cavities 214. The arrows in the figure indicate the flow direction of the fluid, that is, the fluid flowing out of the heat dissipation component 210 is also divided into sections for flow. This embodiment of the invention does not impose specific limitations on this.
[0085] Furthermore, Figure 20 This is a schematic diagram of another heat dissipation component provided in an embodiment of the present invention. Figure 21 This is a schematic diagram of another heat dissipation component provided in an embodiment of the present invention. Figure 22 This is a schematic diagram of another heat dissipation component provided in an embodiment of the present invention, with reference to... Figures 20 to 22 As shown, the sub-fluid cavities 214 intersect to form a mesh structure, which includes multiple cutout areas 214A, exposing the pixel units of the display panel 100.
[0086] Specifically, the multiple sub-fluid cavities 214 in the first fluid cavity 211 and the second fluid cavity 212 can be as follows: Figure 19 As shown, the multiple sub-fluid cavities 214 can be arranged in a parallel pattern, or they can be connected to form a mesh structure, which also divides the fluid flowing into or out of the heat dissipation component 210 into zones. This embodiment of the invention does not impose specific limitations on this. Further, refer to... Figure 21 As shown in the figure, the first fluid cavity 211 includes mesh-connected sub-fluid cavities 214. If the multiple sub-fluid cavities 214 do not correspond to the pixel units 121 in the display panel 100, the cutout area 214A formed by the mesh structure exposes the pixel units, ensuring that the display light emitted by the pixel units 121 is not blocked by the sub-fluid cavities 214. This ensures both heat dissipation for the display panel 100 and the display effect of the display panel 100. Furthermore, refer to... Figure 22 As shown, the second fluid cavity 212 may also include a mesh-like sub-fluid cavity 214, but this embodiment of the invention does not impose specific limitations on this.
[0087] Figure 23 This is a top view schematic diagram of another display device provided in an embodiment of the present invention, with reference to... Figure 23 As shown, the fluid inlet 230 includes a first fluid inlet 231 and a second fluid inlet 232, with the cross-sectional area of the first fluid inlet 231 being larger than that of the second fluid inlet 232; the fluid outlet 240 includes a first fluid outlet 241 and a second fluid outlet 242, with the cross-sectional area of the first fluid outlet 241 being larger than that of the second fluid outlet 242.
[0088] The number of fluid inlets 230 and fluid outlets 240 can be increased based on the requirements for fluid flowing into or out of the heat dissipation component 210. (Reference) Figure 23 As shown, the fluid inlet 230 includes a first fluid inlet 231 and a second fluid inlet 232, and the fluid outlet 240 includes a first fluid outlet 241 and a second fluid outlet 242. Furthermore, the fluid flow rate varies at different locations within the heat dissipation component 210. This is achieved by adjusting the cross-sectional areas of the different fluid inlets 230 and outlets 240, ensuring a balanced and stable fluid flow within the heat dissipation component 210 and guaranteeing stable heat absorption from the display panel 100.
[0089] For example, refer to Figure 23As shown, the cross-sectional area of the first fluid inlet 231 is larger than that of the second fluid inlet 232, and the cross-sectional area of the first fluid outlet 241 is larger than that of the second fluid outlet 242, thus achieving different fluid velocities by having different cross-sectional areas for the fluid inlet 230 and the fluid outlet 240. This embodiment of the invention does not specifically limit the number or cross-sectional area of the fluid inlet 230 and the fluid outlet 240.
[0090] Continue to refer to Figure 23 As shown, the second fluid inlet 232 is located on the side of the first fluid inlet 231 near the edge of the first fluid cavity 211, and the second fluid outlet 242 is located on the side of the first fluid outlet 241 near the edge of the second fluid cavity 212.
[0091] For details, please refer to Figure 23 As shown, the cross-sectional area of the first fluid inlet 231 is larger than that of the second fluid inlet 232. The second fluid inlet 232 is located on the side of the first fluid inlet 231 near the edge of the first fluid cavity 211. The first fluid inlet 231 is the main fluid inlet, and the second fluid inlet 232 is the auxiliary fluid inlet. Similarly, the cross-sectional area of the first fluid outlet 241 is larger than that of the second fluid outlet 242. The second fluid outlet 242 is located on the side of the first fluid outlet 241 near the edge of the second fluid cavity 212. The first fluid outlet 241 is the main fluid outlet, and the second fluid outlet 242 is the auxiliary fluid outlet. In other words, the fluid transfer volume is smaller in the edge regions of the first fluid cavity 211 and the second fluid region 212, so the size of the inlet and outlet used for fluid transfer is smaller. This avoids fluid vortices in the heat dissipation assembly 210 at the first fluid cavity 211 and the second fluid cavity 212, which would hinder timely heat dissipation. To ensure efficient and stable heat dissipation of the display panel 100 by the heat dissipation component 210, the cross-sectional areas of the fluid inlet 230 and fluid outlet 240 in different locations are adjusted.
[0092] Continue to refer to Figure 1 and Figure 4 As shown, the circulating cooling assembly 220 includes a first pipe 221, a fluid pump 223, and a second pipe 222. The first end 221A of the first pipe 221 is connected to the fluid inlet 230, and the second end 221B of the first pipe 221 is connected to the fluid pump 223. The first end 222A of the second pipe 222 is connected to the fluid outlet 240, and the second end 222B of the second pipe 222 is connected to the fluid pump 223. When the fluid pump 223 is working, it drives the fluid to be injected from the first pipe 221 into the first fluid chamber 211 through the fluid inlet 230, flows through one side surface of the display panel 100, flows into the second fluid chamber 212 through the connection, and flows out from the fluid outlet 240 into the second pipe 222, thereby realizing fluid circulation.
[0093] The circulating cooling component 220 includes a first pipe 221 and a second pipe 222, which are connected to the heat dissipation component 210 to dissipate heat from the display panel 100. Specifically, the first pipe 221 and its first end 221A are connected to the fluid inlet 230, and the first end 222A of the second pipe 222 is connected to the fluid outlet 240, thus establishing the fluid transmission path between the circulating cooling component 220 and the heat dissipation component 210.
[0094] Furthermore, the circulating cooling assembly 220 also includes a fluid pump 223, which is connected to the second end 221B of the first pipe 221 and the second end 222B of the second pipe 222. That is, the first pipe 221 and the second pipe 222 are connected by the fluid pump 223, and the fluid pump 223 provides power for the fluid in the first pipe 221 and the second pipe 222 to ensure the circulation of the fluid, thereby ensuring the fluid circulation in the heat dissipation assembly 210 and continuously dissipating heat for the display panel 100.
[0095] Figure 24 This is a schematic diagram of a circulating cooling assembly provided in an embodiment of the present invention, with reference to... Figure 1 and Figure 24 As shown, at least one of the first pipe 221 and the second pipe 222 is provided with heat dissipation fins 224.
[0096] Among them, heat dissipation fins, often simply called heat sinks, are classified as "passive heat dissipation components" in the field of electronic engineering design. They utilize a metal with good thermal conductivity, lightweight, and easy processing, such as copper, attached to the heat-generating surface, dissipating heat through a composite heat exchange mechanism. For details, refer to... Figure 24 As shown, heat dissipation fins 224 are disposed on the first pipe 221 and / or the second pipe 222 to dissipate the heat of the fluid flowing in the first pipe 221 and / or the second pipe 222 in a timely manner, that is, the heat of the fluid absorbed by the display panel 100 in the heat dissipation assembly 210 is dissipated through the heat dissipation fins 224.
[0097] Since the circulating heat dissipation component does not contact the display panel and is located outside the display panel, in other embodiments, the circulating heat dissipation component can also be provided with an active heat dissipation structure, such as a cooling fan, etc. The specific implementation can be designed according to the actual situation.
[0098] Continue to refer to Figure 1 As shown, at least one of the first conduit 221 and the second conduit 222 includes multiple curved structures.
[0099] For example, refer to Figure 1 As shown, Figure 1The N region in the diagram represents a curved structure present in the first pipe 221. Multiple curved structures may exist in the first pipe 221 and the second pipe 222; this embodiment of the invention does not impose specific limitations on this. Specifically, by providing multiple curved structures, the space of the circulating cooling assembly 220 can be reduced, thus saving the overall installation space of the display device 10. Furthermore, multiple curved structures can increase the fluid flow path, which is more conducive to heat dissipation.
[0100] Optionally, the fluid may include liquid or gas.
[0101] The fluid is a heat dissipation medium in the heat dissipation component 210 or the circulating cooling component 220. It can be a liquid or other fluid, such as water or air. It absorbs heat from the display panel 100 through heat conduction, thereby dissipating heat from the display panel 100 and ensuring the normal operation of the display panel 100.
[0102] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.
Claims
1. A display device, characterized in that, It includes a display panel and a fluid cooling module, wherein the fluid cooling module includes a circulating cooling component and at least one heat dissipation component; The heat dissipation assembly includes a first fluid cavity adjacent to a first surface of the display panel and a second fluid cavity adjacent to a second surface of the display panel, wherein the first fluid cavity and the second fluid cavity are in communication. The heat dissipation assembly includes at least one fluid inlet disposed at one end of the first fluid cavity and at least one fluid outlet disposed at one end of the second fluid cavity, and both the fluid inlet and the fluid outlet are connected to the circulating cooling assembly. The connection between the first fluid cavity and the second fluid cavity includes multiple connecting pipes; At least two of the connecting conduits have different cross-sectional areas in a first section, wherein the first section is perpendicular to the extension direction of the connecting conduit; In the direction perpendicular to the extension of the connecting pipe, the cross-sectional area of the connecting pipe increases sequentially from both sides of the connection to the center of the connection.
2. The display device according to claim 1, characterized in that, The display panel includes a signal input terminal located at one end of the display panel, and at least one of the fluid inlet and the fluid outlet overlaps with the signal input terminal at least partially along a direction perpendicular to the plane of the display panel.
3. The display device according to claim 2, characterized in that, The signal input terminals include a first signal input terminal and a second signal input terminal. Along a direction perpendicular to the plane where the display panel is located, the fluid inlet at least partially overlaps with the first signal input terminal, and the fluid outlet at least partially overlaps with the second signal input terminal.
4. The display device according to claim 2, characterized in that, Along a direction perpendicular to the plane where the display panel is located, at least one of the fluid inlet and the fluid outlet completely covers the signal input terminal.
5. The display device according to claim 3, characterized in that, It also includes a driver chip, and both the first signal input terminal and the second signal input terminal are electrically connected to the driver chip. The projection of the driver chip on the display panel is located between the projections of the first signal input terminal and the second signal input terminal on the display panel. Along a direction perpendicular to the plane of the display panel, at least one of the fluid inlet and the fluid outlet overlaps at least partially with the driver chip.
6. The display device according to claim 2, characterized in that, The number of signal input terminals is 'a', the number of fluid input ports is 'b', and the number of fluid output ports is 'c', where a = b + c; Where a is an integer greater than 2, b is an integer greater than or equal to 1, and c is an integer greater than or equal to 1.
7. The display device according to claim 1, characterized in that, The first fluid cavity includes a first end and a second end disposed opposite to each other in a first direction, and the second fluid cavity includes a third end and a fourth end disposed opposite to each other in the first direction; The fluid inlet is connected to the first end of the first fluid cavity, the fluid outlet is connected to the third end of the second fluid cavity, and the second end of the first fluid cavity and the fourth end of the second fluid cavity are connected. The first end of the first fluid cavity and the third end of the second fluid cavity are both adjacent to the first end of the display panel, and the second end of the first fluid cavity and the fourth end of the second fluid cavity are both adjacent to the second end of the display panel.
8. The display device according to claim 7, characterized in that, The fifth end of the first fluid cavity and the sixth end of the second fluid cavity are connected. The fifth end of the first fluid cavity is adjacent to the second end of the first fluid cavity, and the sixth end of the second fluid cavity is adjacent to the fourth end of the second fluid cavity.
9. The display device according to claim 1, characterized in that, The first fluid cavity and the second fluid cavity are integrally connected.
10. The display device according to claim 9, characterized in that, The first fluid cavity and the second fluid cavity are connected to form a receiving structure in which at least a portion of the display panel is placed.
11. The display device according to claim 1, characterized in that, At least one of the first fluid cavity and the second fluid cavity includes a plurality of sub-fluid cavities.
12. The display device according to claim 11, characterized in that, The sub-fluid cavities intersect to form a mesh structure, which includes multiple cutout areas that expose the pixel units of the display panel.
13. The display device according to claim 1, characterized in that, The fluid inlet includes a first fluid inlet and a second fluid inlet, wherein the cross-sectional area of the first fluid inlet is larger than the cross-sectional area of the second fluid inlet. The fluid outlet includes a first fluid outlet and a second fluid outlet, wherein the cross-sectional area of the first fluid outlet is larger than the cross-sectional area of the second fluid outlet.
14. The display device according to claim 13, characterized in that, The second fluid inlet is located on the side of the first fluid inlet near the edge of the first fluid cavity, and the second fluid outlet is located on the side of the first fluid outlet near the edge of the second fluid cavity.
15. The display device according to claim 1, characterized in that, The circulating cooling assembly includes a first pipeline, a fluid pump, and a second pipeline. A first end of the first pipeline is connected to the fluid inlet, and a second end of the first pipeline is connected to the fluid pump. A first end of the second pipeline is connected to the fluid outlet, and a second end of the second pipeline is connected to the fluid pump. When the fluid pump is working, it drives the fluid to be injected into the first fluid cavity from the first pipeline through the fluid inlet, flows through one side surface of the display panel and then flows into the second fluid cavity through the connection, and flows out from the fluid inlet into the second pipeline to achieve fluid circulation.
16. The display device according to claim 15, characterized in that, At least one of the first pipe and the second pipe is provided with heat dissipation fins.
17. The display device according to claim 15, characterized in that, At least one of the first conduit and the second conduit includes multiple bends.
18. The display device according to claim 15, characterized in that, The fluid may be a liquid or a gas.
19. The display device according to claim 1, characterized in that, The first fluid cavity is a transparent structure and is disposed adjacent to the light-emitting surface of the display panel.
20. The display device according to claim 1, characterized in that, Both the first fluid cavity and the second fluid cavity are transparent structures, and the display panel is a transparent display panel.
21. The display device according to claim 20, characterized in that, The display panel is a self-emissive display panel, which includes multiple light-emitting elements.
22. The display device according to claim 21, characterized in that, The light-emitting element includes at least one of organic light-emitting diodes, sub-millimeter light-emitting diodes, or micro light-emitting diodes.
Citation Information
Patent Citations
Mulberry laminar, casing and module for display panel and cooling method thereof
CN1469164A