Display device

Abstract

The invention provides a display device. The display device comprises a rear shell, a backlight module, an optical film, a frame piece and a panel module. The backlight module is arranged above the rear shell. The optical film is arranged on the backlight module. The panel module is arranged above the optical film and forms a first internal space with the rear shell. The frame member is arranged between the optical film and the panel module, and different side edges of the frame member are respectively provided with a first opening and a second opening. The backlight module, the optical film and the frame member are located in the first internal space. A second internal space is formed among the panel module, the frame member and the optical film. The first internal space and the second internal space communicate with each other through the first opening and the second opening of the frame member.

Description

Technical Field

[0001] The invention relates to a display device. Background Art

[0002] Computers, televisions, mobile phones and other electronic products widely use various display devices, such as liquid crystal displays (LCDs). The main components include backlight modules, optical films, frames and panel modules, etc. The heat dissipation directly affects the performance and durability.

[0003] like Figure 1 In the conventional technology shown, the optical film 30 and the panel module 50 of the conventional display device 90 are enclosed in a closed space 70, which cannot dissipate heat through convection of the fluid, which easily causes poor heat dissipation and leads to heat accumulation, affecting performance and durability. Therefore, there is room for improvement. Summary of the invention

[0004] The object of the present invention is to provide a display device with better heat dissipation effect.

[0005] The display device of the present invention comprises a rear shell, a backlight module, an optical film, a panel module and a frame. The backlight module is arranged above the rear shell. The optical film is arranged on the backlight module. The panel module is arranged above the optical film and forms a first internal space with the rear shell. The frame is arranged between the optical film and the panel module, and different sides of the frame have a first opening and a second opening respectively. The backlight module, the optical film and the frame are located in the first internal space. A second internal space is formed between the panel module, the frame and the optical film. The first internal space and the second internal space are connected to each other through the first opening and the second opening of the frame.

[0006] In one embodiment, the first opening and the second opening are respectively located on opposite sides of the frame.

[0007] In one embodiment, the first inner space is a closed space.

[0008] In one embodiment, the display device further includes an internal circulation fan disposed in the first internal space and located outside the second internal space, and the internal circulation fan can drive the fluid distributed in the first internal space and the second internal space to flow in and out of the first internal space and the second internal space.

[0009] In one embodiment, the first inner space is an open space.

[0010] In one embodiment, the rear shell includes a rear shell first opening and a rear shell second opening for communicating the first inner space with the outer side of the rear shell.

[0011] In one embodiment, the display device further includes a first external circulation fan disposed adjacent to one of the first opening of the rear case and the second opening of the rear case, driving the fluid to flow into or out of the first internal space.

[0012] In one embodiment, the display device further includes a second external circulation fan disposed adjacent to the other of the first opening of the rear case and the second opening of the rear case, driving the fluid to flow into or out of the first internal space in a manner opposite to that of the first external circulation fan.

[0013] In one embodiment, the outer side of the bottom of the backlight module is partially connected to the rear housing.

[0014] In one embodiment, the portion of the bottom outer side of the backlight module connected to the rear housing divides the first internal space into a plurality of areas. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the known technology.

[0016] Figure 2 FIG. 4 is a schematic diagram of an embodiment of a display device of the present invention.

[0017] Figure 3 Schematic diagrams of different embodiments of the display device of the present invention.

[0018] Figure 4 Schematic diagrams of different embodiments of the display device of the present invention are exploded.

[0019] Figure 5 It is the temperature simulation result of the known technology.

[0020] Figure 6 1 is a temperature simulation result of an embodiment of a display device of the present invention.

[0021] Figure 7 It is a schematic diagram of an embodiment in which the first internal space of the display device of the present invention is an open space.

[0022] Figure 8 Schematic diagrams of different embodiments of the display device of the present invention in which the first internal space is an open space.

[0023] Fig. 9 1 and 2 are temperature simulation results of different embodiments of the display device of the present invention.

[0024] The reference numerals are as follows:

[0025] 100: Back shell

[0026] 110: The first opening of the back shell

[0027] 120: Second opening of the back shell

[0028] 200: Backlight module

[0029] 210: Cooling fins

[0030] 300: Optical film

[0031] 400: Frame

[0032] 410: First Opening

[0033] 420: Second opening

[0034] 500: Panel module

[0035] 510: LCD panel

[0036] 520: Panel glass

[0037] 610: Internal circulation fan

[0038] 621: The first external circulation fan

[0039] 622: Second external circulation fan

[0040] 710: First Interior Space

[0041] 720: Second Internal Space

[0042] 900: Display device

[0043] 901: Display device DETAILED DESCRIPTION

[0044] The following is a specific embodiment and a drawing to illustrate the embodiment of the connection assembly disclosed in the present invention. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification. However, the content disclosed below is not intended to limit the scope of protection of the present invention. Without deviating from the principle of the spirit of the present invention, those skilled in the art can implement the present invention with other different embodiments based on different viewpoints and applications. In the accompanying drawings, for the sake of clarity, the thickness of the layer, film, panel, region, etc. is magnified. Throughout the specification, the same reference numerals represent the same elements. It should be understood that when an element such as a layer, film, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to another element, or an intermediate element can also exist. On the contrary, when an element is referred to as "directly on" or "directly connected to" another element, there is no intermediate element. As used herein, "connection" can refer to physical and / or electrical connection. Furthermore, "electrical connection" or "coupling" can be the presence of other elements between two elements.

[0045] It should be understood that although the terms "first", "second", "third", etc. can be used to describe various elements, components, regions, layers and / or parts in this article, these elements, components, regions and / or parts should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or part from another element, component, region, layer or part. Therefore, the "first element", "component", "region", "layer" or "part" discussed below can be referred to as a second element, component, region, layer or part without departing from the teachings of this article.

[0046] In addition, relative terms such as "lower" or "bottom" and "upper" or "top" may be used herein to describe the relationship of one element to another element, as shown in the figures. It should be understood that relative terms are intended to include different orientations of the device in addition to the orientation shown in the figures. For example, if the device in one figure is turned over, the element described as being on the "lower" side of the other elements will be oriented on the "upper" side of the other elements. Therefore, the exemplary term "lower" can include both "lower" and "upper" orientations, depending on the specific orientation of the figure. Similarly, if the device in one figure is turned over, the element described as being "below" or "below" other elements will be oriented as being "above" other elements. Therefore, the exemplary term "below" or "below" can include both above and below orientations.

[0047] As used herein, "about", "approximately", or "substantially" includes the stated value and the average value within an acceptable deviation range of the particular value determined by one of ordinary skill in the art, taking into account the measurement in question and the particular amount of error associated with the measurement (i.e., the limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value, or within ±30%, ±20%, ±10%, ±5%. Furthermore, as used herein, "about", "approximately", or "substantially" can select a more acceptable deviation range or standard deviation depending on the optical property, etching property or other property, and can apply to all properties without a single standard deviation.

[0048] like Figure 2In the embodiment shown, the display device 900 of the present invention includes a rear housing 100, a backlight module 200, an optical film 300, a panel module 500 and a frame 400. The backlight module 200 is disposed above the rear housing 100. The panel module 500 is disposed above the optical film 300 and forms a first internal space 710 with the rear housing 100. The panel module 500 may include a liquid crystal panel 510 and a panel glass 520, and the optical film 300 includes a polarizer. The frame 400 is disposed between the optical film 300 and the panel module 500, and different sides of the frame 400 have a first opening 410 and a second opening 420, respectively. The backlight module 200, the optical film 300 and the frame 400 are located in the first internal space 710. The panel module 500, the frame 400 and the optical film 300 form a second internal space 720, and the first internal space 710 and the second internal space 720 are connected to each other through the first opening 410 and the second opening 420 of the frame 400. In one embodiment, the first opening 410 and the second opening 420 are located on opposite sides of the frame 400, respectively.

[0049] Since the first internal space 710 and the second internal space 720 are interconnected, that is, the second internal space 720 between the optical film 300 and the panel module 500 is not closed, this area can dissipate heat through the convection of a fluid such as air, reducing heat accumulation and avoiding the impact on performance and durability due to poor heat dissipation. In addition, when heat is brought to the first internal space 710, it can not only be quickly dispersed due to the larger space of the first internal space 710, but also directly contact with the components surrounding the first internal space 710, such as the rear shell 100, and use conduction to dissipate heat.

[0050] On the other hand, the display device 900 may further include an internal circulation fan 610 disposed in the first internal space 710 and outside the second internal space 720. The internal circulation fan 610 may drive the fluid distributed in the first internal space 710 and the second internal space 720 to flow into and out of the first internal space 710 and the second internal space 720. Further, the fluid distributed in the first internal space 710 and the second internal space 720 may generate natural convection based on the temperature difference, and the internal circulation fan 610 disposed in addition may drive the fluid flow in an active manner by generating thrust by the rotation of the fan, thereby further improving the heat dissipation effect. Among them, the fluid may flow along the direction of the arrow shown in the figure, for example.

[0051] In different embodiments, the components included in the display device 900 may have different configurations according to requirements. Figure 3In the illustrated embodiment, the backlight module 200 and the optical film 300 are mainly disposed in the frame 400, and a portion of the frame 400 extends between the optical film 300 and the panel module 500, and is located on the optical film 300. The backlight module 200 may further include heat dissipation fins 210 disposed on the other side of the backlight module 200 relative to the optical film 300, so as to enhance the heat dissipation effect of the backlight module 200. In other words, in this embodiment, a portion of the heat generated by the backlight module 200 during operation can be transferred to the heat dissipation fins 210 by conduction, and dissipated on the other side of the backlight module 200 relative to the optical film 300; and a portion of the heat can be carried away from the second internal space 720 by convection through the fluid. As shown in FIG. Figure 4 In the exploded perspective view of the embodiment shown, the number of the first openings 410 and the number of the second openings 420 of the frame 400 are four and are located on opposite sides, but the present invention is not limited thereto.

[0052] Further software (Siemens Flotherm) was used to analyze e.g. Figure 1 The known display device of the embodiment shown and the like Figure 3 The simulation results of the display device 900 of the present invention and the prior art are shown in FIG. Figure 5 and Figure 6 As shown in the figure, "CG" represents panel glass, "POL" represents optical film such as polarizer, "Die-casting" represents heat dissipation fins, and "Light board" represents backlight module. Figure 5 and Figure 6 It can be seen that under an ambient temperature of 25°C, the temperature of the polarizer in the conventional display device is 101°C, the temperature of the polarizer in the display device of the present invention is 63.6°C, and the temperatures at other locations are also relatively low. The display device of the present invention obviously has a better heat dissipation effect.

[0053] In such Figures 2 to 4 In the illustrated embodiment, the first interior space 710 is a closed space, however, in different embodiments, the first interior space 710 may be an open space. Figure 7 and Figure 8In the embodiment shown, the rear shell 100 includes a rear shell first opening 110 and a rear shell second opening 120 that connect the first internal space 710 with the outside of the rear shell 100. Accordingly, after the heat of the second internal space 720 is transferred to the first internal space 710 via convection, it can be further dissipated to the outside of the rear shell 100, reducing the chance of accumulation inside the display device 901. Relatively speaking, the fluid at the outside of the rear shell 100 and at a lower temperature can also enter the inside of the display device 901 through the rear shell first opening 110 and the rear shell second opening 120. Viewed from different angles, the design of the first internal space 710 as an open space can actually achieve the effect of fluid exchange between the inside and outside of the display device 901.

[0054] On the other hand, the display device 901 may further include a first external circulation fan 621 disposed adjacent to one of the first opening 110 and the second opening 120 of the rear shell, driving the fluid to flow into or out of the first internal space 710. Further, the fluid distributed in the first internal space 710 and the second internal space 720 may generate natural convection with the fluid at the outside of the rear shell 100 and at a lower temperature based on the temperature difference, and the first external circulation fan 621 disposed in addition may drive the fluid to flow in an active manner by generating thrust by the rotation of the fan, thereby further improving the heat dissipation effect. Among them, the fluid may flow in the direction of the arrow shown in the figure, for example. The display device 901 may also include a second external circulation fan 622 disposed adjacent to the other of the first opening 110 and the second opening 120 of the rear shell, driving the fluid to flow into or out of the first internal space 710 in the opposite manner to the first external circulation fan 621. Among them, the outer side of the bottom of the backlight module 200 or the frame 400 may be partially connected to the rear shell 100 to improve the conduction heat dissipation effect. The connected portion can further divide the first internal space 710 into two or more areas, so that the fluids flowing into and out of the first internal space 710 do not contact each other, thereby achieving the effect of fully replacing the fluids.

[0055] Further software (Siemens Flotherm) was used to analyze e.g. Figure 8 The display device 901 of the present invention in the embodiment shown in the figure is simulated. Figure 5 and Fig. 9 It can be seen that under an ambient temperature of 25°C, the temperature of the polarizer in the conventional display device is 101°C, and the temperature of the polarizer in the display device of the present invention is 56.7°C. The temperatures at other locations are also relatively low. The display device of the present invention obviously has a better heat dissipation effect.

[0056] The present invention has been described by the above-mentioned relevant embodiments, however, the above-mentioned embodiments are only examples for implementing the present invention. It must be pointed out that the disclosed embodiments do not limit the scope of the present invention. On the contrary, modifications and equivalent settings included in the spirit and scope of the claims are all included in the scope of the present invention.

Claims

1. A display device, comprising: a rear shell; A backlight module is disposed above the rear housing; An optical film, disposed on the backlight module; a panel module, disposed above the optical film, and forming a first internal space with the rear housing; and a frame member, disposed between the optical film and the panel module, and having a first opening and a second opening on different sides of the frame member, the backlight module, the optical film and the frame member are located in the first internal space, and a second internal space is formed between the panel module, the frame member and the optical film; in, The first internal space and the second internal space are communicated with each other through the first opening and the second opening of the frame. 2 . The display device as claimed in claim 1 , wherein the first opening and the second opening are respectively located on opposite sides of the frame. The display device as claimed in claim 1 , wherein the first internal space is a closed space.

4. The display device as described in claim 1 further comprises an internal circulation fan arranged in the first internal space and located outside the second internal space, and the internal circulation fan can drive a fluid distributed in the first internal space and the second internal space to flow into and out of the first internal space and the second internal space. The display device as claimed in claim 1 , wherein the first inner space is an open space. 6 . The display device as claimed in claim 5 , wherein the rear case comprises a rear case first opening and a rear case second opening for communicating the first internal space with the outer side of the rear case. 7 . The display device as claimed in claim 6 , further comprising a first external circulation fan disposed adjacent to one of the first opening of the rear case and the second opening of the rear case, driving the fluid to flow into or out of the first internal space.

8. The display device as claimed in claim 7, further comprising a second external circulation fan disposed adjacent to the other of the first opening of the rear case and the second opening of the rear case, driving the fluid to flow into or out of the first internal space in a manner opposite to that of the first external circulation fan. 9 . The display device as claimed in claim 1 , wherein an outer side of a bottom of the backlight module is partially connected to the rear housing. 10 . The display device as claimed in claim 9 , wherein a portion of the bottom outer side of the backlight module connected to the rear housing divides the first inner space into a plurality of areas.

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