A self-heating light valve module and a light valve heat dissipation device

Abstract

The present invention discloses a self-heat-conducting light valve module, comprising a first transparent graphene heat-conducting film, a panel frame, an LCD light valve, and a second transparent graphene heat-conducting film. The two end surfaces of the panel frame are respectively a first plane and a second plane, a rectangular through hole is provided in the center of the panel frame, and the LCD light valve is installed in the rectangular through hole; the first transparent graphene heat-conducting film is in contact with the first plane and the incident surface of the LCD light valve, and the second transparent graphene heat-conducting film is in contact with the second plane and the exit surface of the LCD light valve. The present invention also provides a light valve heat dissipation device, comprising a heat diffusion facility installed on the outer peripheral wall of the self-heat-conducting light valve module. The present invention realizes efficient heat dissipation and temperature uniformity of the LCD light valve through the ultra-high thermal conductivity of the transparent graphene heat-conducting film, effectively prolongs the service life of the LCD light valve, and enables the LCD light valve to adapt to stronger light irradiation.

Description

Technical Field

[0001] The invention relates to the technical field of projectors, and in particular to a self-heat-conducting light valve module and a light valve heat dissipation device. Background Art

[0002] When the projector lighting system illuminates the light valve, there is always a part of the light that is absorbed by the light valve and converted into Joule heat. The output brightness of the projector, on the same optical system, depends on how much light shines on the light valve. To output higher brightness, stronger light is needed to illuminate the light valve. Stronger light exposure will inevitably result in more heat generated by the light valve, thus requiring stronger heat dissipation capacity to make the light valve work within the permitted temperature range. Whether the light valve can work normally depends entirely on the heat dissipation level of the light valve.

[0003] In comparison, the heat dissipation of the light valve of the LCD projector is the most difficult, because the heat dissipation function and light transmission function of the light valve overlap. The light valve not only needs to dissipate heat, but also needs to transmit light. Any opaque heat-conducting material cannot quickly conduct heat away by direct contact with the light-transmitting surface of the light valve. There is also a technology that uses crystal glass and the light-transmitting surface of the light valve to conduct heat. This type of technology has very limited improvement on the heat dissipation of the light valve, because the thermal conductivity of crystal glass is not high no matter what direction it is in. Except for being able to even out the temperature to a certain extent to avoid local high heat spots from damaging the light valve, there is no essential improvement on the heat dissipation of the light valve, and it also has a negative effect on the heat dissipation method of the LCD light valve by removing heat through air cooling.

[0004] Existing LCD projectors generally use forced air cooling to achieve light valve heat dissipation, that is, using a fan to blow air directly to the light-transmitting surface of the light valve and polarizer. Since the air cooling heat transfer coefficient is relatively low, the heat exchange area is fixed, and the temperature difference of the fluid (air) is subject to factors such as the light valve characteristics and the ambient temperature, the air cooling effect is very general, the light valve cannot adapt to stronger light exposure, and the projector cannot output higher brightness. Summary of the invention

[0005] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a self-heat-conducting light valve module and a light valve heat dissipation device. The present invention uses a graphene thermal conductive film with an ultra-high thermal conductivity in the horizontal (in-plane) direction (the theoretical thermal conductivity of graphene is 5000W / m·k), so that the heat generated by the LCD light valve can be quickly conducted away, thereby achieving the purpose of efficient heat dissipation and temperature uniformity of the LCD light valve, effectively improving the service life of the LCD light valve, enabling the LCD light valve to adapt to stronger light exposure, creating the necessary conditions for the projector to output higher brightness, significantly improving the local color cast of the image white field, and increasing the user experience beauty and satisfaction.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a self-heat-conducting light valve module, comprising a first transparent graphene heat-conducting film, a panel frame, an LCD light valve, and a second transparent graphene heat-conducting film; the two end surfaces of the panel frame are respectively a first plane and a second plane, and the first plane is parallel to the second plane.

[0007] A rectangular through hole is provided in the center of the panel frame, and the size of the rectangular through hole is greater than or equal to the maximum outer dimension of the glass substrate of the LCD light valve; the LCD light valve is installed in the rectangular through hole, and the incident surface of the LCD light valve is on the same plane as the first plane, and the exit surface of the LCD light valve is on the same plane as the second plane.

[0008] The first transparent graphene thermally conductive film is bonded to the first plane and the incident surface of the LCD light valve; the second transparent graphene thermally conductive film is bonded to the second plane and the exit surface of the LCD light valve.

[0009] Furthermore, a first group of gaps is provided in an area where the first transparent graphene thermally conductive film is attached to the first plane.

[0010] Furthermore, a second group of gaps is provided in an area where the second transparent graphene thermally conductive film is attached to the second plane.

[0011] Furthermore, an incident polarizer is attached to the outer surface of the first transparent graphene thermally conductive film, or an incident polarizer is attached between the incident surface of the LCD light valve and the first transparent graphene thermally conductive film, and the incident polarizer is opposite to the incident surface of the LCD light valve.

[0012] An exit polarizer is attached to the outer surface of the second transparent graphene thermally conductive film, or an exit polarizer is attached between the exit surface of the LCD light valve and the second transparent graphene thermally conductive film, and the exit polarizer is opposite to the exit surface of the LCD light valve.

[0013] Furthermore, the edge of the panel frame is provided with a reinforcement structure for increasing the mechanical strength of the panel frame, wherein the reinforcement structure can be selected from any one of "T" type, "L" type, and "O" type, but is not limited to these shapes.

[0014] Furthermore, the outer dimensions of the first transparent graphene thermally conductive film are the same as the outer dimensions of the first plane; and the outer dimensions of the second transparent graphene thermally conductive film are the same as the outer dimensions of the second plane.

[0015] The present invention also provides a light valve heat dissipation device, comprising the self-heat-conducting light valve module, and also comprising a heat diffusion facility installed on the outer peripheral wall of the self-heat-conducting light valve module; the heat of the self-heat-conducting light valve module is transferred to the heat diffusion facility and diffused into the air through the heat diffusion facility.

[0016] Furthermore, the heat diffusion facility includes any one of a fin heat sink, a heat pipe heat sink, and a thermal diffusion sheet, but is not limited to these heat expansion and heat dissipation methods.

[0017] Furthermore, the heat diffusion facility includes a semiconductor refrigeration system.

[0018] Furthermore, the semiconductor refrigeration system includes an adapter plate, a semiconductor refrigeration sheet and a radiator; the adapter plate is installed on the outer peripheral wall of the self-heat-conducting light valve module; the cold end of the semiconductor refrigeration sheet is connected to the adapter plate, and the hot end is connected to the radiator; the radiator includes any one of a fin radiator, a heat pipe radiator, and a thermal diffusion sheet, but is not limited to these heat expansion and heat dissipation methods.

[0019] Beneficial effects of the present invention:

[0020] When the self-heating light valve module of the present invention is placed in the optical path of the projector, the LCD light valve will absorb a part of the light and generate heat, and the heat will be conducted to the edges of the first transparent graphene heat-conducting film and the second transparent graphene heat-conducting film and the panel frame through the first transparent graphene heat-conducting film and the second transparent graphene heat-conducting film. The first transparent graphene heat-conducting film and the second transparent graphene heat-conducting film have ultra-high in-plane thermal conductivity coefficients, so the heat converted by the LCD light valve absorbing the light can be directly and quickly conducted to the surface of the first transparent graphene heat-conducting film and the second transparent graphene heat-conducting film, and quickly transferred away in the in-plane direction, and quickly transferred to the panel frame, which is conducive to achieving the purpose of rapid heat dissipation of the LCD light valve, effectively improving the service life of the LCD light valve, and enabling the LCD light valve to adapt to stronger light irradiation. The present invention can equalize the temperature of the entire light-transmitting surface of the LCD light valve to a certain extent, so that the difference in the temperature gradient in the light-transmitting surface of the LCD light valve is reduced, and the temperature distribution is more uniform, thereby effectively improving the unevenness of the brightness and color of the image output by the projector, effectively improving the visual defects of local color cast of the picture, and increasing user satisfaction. The transparent graphene thermal conductive film of the present invention is provided with a group of notches to eliminate the stress damage of the transparent graphene thermal conductive film after being heated and compressed by an external heat diffusion facility, and to prevent the transparent graphene thermal conductive film from warping after lamination and during operation. 4. When the horizontal thermal conductivity of the transparent graphene thermal conductive film of the present invention is ≥100W / m·k, the heat transfer coefficient and heat dissipation capacity of traditional air cooling are achieved, and the horizontal thermal conductivity of the transparent graphene thermal conductive film of the present invention has reached ≥1000W / m·k (the theoretical thermal conductivity of graphene is 5000W / m·k), and the heat dissipation effect is far better than that of traditional air cooling, and the structure is simple, cost-effective, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is a cross-sectional view of the self-heating light valve module of the present invention;

[0023] Figure 2 A three-dimensional diagram of an embodiment of the present invention;

[0024] Figure 3 for Figure 2 Exploded diagram of

[0025] Figure 4 A three-dimensional diagram of an embodiment of the present invention;

[0026] Figure 5A schematic diagram of the structure of an embodiment of the present invention;

[0027] Figure 6 A three-dimensional diagram of a semiconductor refrigeration system installed in the present invention.

[0028] The above reference numerals:

[0029] 1 self-heat-conducting light valve module, 11 first transparent graphene thermal conductive film, 1101 first notch group, 12 panel frame, 1201 first plane, 1202 reinforcement structure, 1203 rectangular through hole, 1204 second plane, 13 LCD light valve, 1301 incident glass, 1302 exit glass, 1303 connecting cable, 14 second transparent graphene thermal conductive film, 1401 second notch group, 2 thermal diffusion facility, 21 fin heat sink, 22 heat pipe heat sink, 23 thermal diffusion sheet, 3 semiconductor refrigeration system, 31 adapter plate, 32 semiconductor refrigeration sheet, 33 radiator, 4 incident polarizer, 5 exit polarizer, 100 light valve heat dissipation device. DETAILED DESCRIPTION

[0030] The present invention is further described below in conjunction with the accompanying drawings, but is not intended to limit the scope of the present invention.

[0031] like Figure 1-6 As shown, a self-heat-conducting thermal light valve module 1 provided in this embodiment includes a first transparent graphene thermal conductive film 11, a panel frame 12, an LCD light valve 13, and a second transparent graphene thermal conductive film 14; the two end surfaces of the panel frame 12 are respectively a first plane 1201 and a second plane 1204; the first plane 1201 is parallel to the second plane 1204.

[0032] A rectangular through hole 1203 is provided in the center of the panel frame 12; the size of the rectangular through hole 1203 is greater than or equal to the maximum outer dimension of the glass substrate of the LCD light valve 13, and the LCD light valve 13 is installed in the rectangular through hole 1203; and the incident surface of the LCD light valve 13 is on the same plane as the first plane 1201, and the exit surface of the LCD light valve 13 is on the same plane as the second plane 1204.

[0033] The first transparent graphene thermally conductive film 11 is bonded to the first plane 1201 and the incident surface of the LCD light valve 13 ; the second transparent graphene thermally conductive film 14 is bonded to the second plane 1204 and the exit surface of the LCD light valve 13 .

[0034] When the self-heat-conducting light valve module 1 of this embodiment is placed in the optical path of the projector, the LCD light valve 13 absorbs a part of the light and generates heat, and the heat is transferred to the edges of the first transparent graphene heat-conducting film 11 and the second transparent graphene heat-conducting film 14 and the panel frame 12 through the first transparent graphene heat-conducting film 11 and the second transparent graphene heat-conducting film 14. Since the first transparent graphene heat-conducting film 11 and the second transparent graphene heat-conducting film 14 have ultra-high in-plane thermal conductivity coefficients, the heat converted by the light absorbed by the LCD light valve 13 can be directly and quickly transferred to the surfaces of the first transparent graphene heat-conducting film 11 and the second transparent graphene heat-conducting film 14, and is quickly transferred away in the in-plane direction and quickly transferred to the panel frame 12, which is conducive to achieving the purpose of rapid heat dissipation of the LCD light valve 13, effectively improving the service life of the LCD light valve 13, and enabling the LCD light valve 13 to adapt to stronger light irradiation.

[0035] In this embodiment, the part of the LCD light valve 13 that generates the most heat is its central area. Under the action of the first transparent graphene thermally conductive film 11 and the second transparent graphene thermally conductive film 14, the heat is quickly transferred to the edges of the first transparent graphene thermally conductive film 11 and the second transparent graphene thermally conductive film 14 and the panel frame 12, so that the temperature of the entire light-transmitting surface of the LCD light valve 13 can be evenly distributed, that is, while lowering the temperature of the central area, the temperature of the edge area is increased to a certain extent, so that the difference in temperature gradient within the light-transmitting surface of the LCD light valve 13 is reduced, and the temperature distribution is more uniform, thereby effectively improving the unevenness of brightness and color of the image output by the projector, effectively improving the visual defect of local color cast of the picture, and increasing user satisfaction.

[0036] Preferably, the length and width of the rectangular through hole 1203 are respectively 0.05-0.1 mm larger than the length and width of the maximum outer shape of the glass substrate of the LCD light valve 13, ensuring that the LCD light valve 13 can be smoothly embedded in the rectangular through hole 1203 without excessive clearance. Of course, the size of the rectangular through hole 1203 is not limited to this preferred size range, as long as the LCD light valve 13 and the panel frame 12 meet the same planarity requirements and can be fixed.

[0037] Preferably, the LCD light valve 13 is installed in the rectangular through hole 1203 of the panel frame 12 and then cured with glue, so that the panel frame 12 and the LCD light valve 13 are integrated into one. The curing glue cannot overflow onto the incident surface and the exit surface of the LCD light valve 13, and the first plane 1201 and the second plane 1204 of the panel frame 12.

[0038] Preferably, the panel frame 12 is made of ADC12, 1100, or 6063 aluminum alloy, but is not limited to these materials.

[0039] Preferably, the outer dimensions of the first transparent graphene thermally conductive film 11 are the same as the outer dimensions of the first plane 1201, so that when the first transparent graphene thermally conductive film 11 is attached to the first plane 1201, the outer dimensions of the first transparent graphene thermally conductive film 11 are aligned with the outer dimensions of the first plane 1201; the outer dimensions of the second transparent graphene thermally conductive film 14 are the same as the outer dimensions of the second plane 1204, so that when the second transparent graphene thermally conductive film 14 is attached to the second plane 1204, the outer dimensions of the second transparent graphene thermally conductive film 14 are aligned with the outer dimensions of the second plane 1204. Of course, the outer dimensions of the first transparent graphene thermally conductive film 11 can also be smaller than or larger than the outer dimensions of the first plane 1201, and the outer dimensions of the second transparent graphene thermally conductive film 14 can also be smaller than or larger than the outer dimensions of the second plane 1204, but both must be larger than the dimensions of the rectangular through hole 1203.

[0040] In this embodiment, the LCD light valve 13 is an electro-optical imaging device, which includes two butt-sealed glass substrates, one of which is an incident glass 1301 with a color filter film made on the inner surface, and the other glass substrate is an exit glass 1302 with a thin film transistor array made on the inner surface and bonded with a connection wiring 1303, and liquid crystal is sandwiched between the inner surfaces of the incident glass 1301 and the exit glass 1302. In this embodiment, through the first transparent graphene thermal conductive film 11 and the second transparent graphene thermal conductive film 14, when the LCD light valve 13 absorbs light and generates heat, the heat is transferred to the first transparent graphene thermal conductive film 11 through the outer surface of the incident glass 1301 of the LCD light valve 13; at the same time, the heat is also transferred to the second transparent graphene thermal conductive film 14 through the outer surface of the exit glass 1302. The first transparent graphene thermal conductive film 11 and the second transparent graphene thermal conductive film 14 are conducted in the in-plane direction to the edge thereof, so that the heat is conducted to the panel frame 12 and its vicinity.

[0041] In this embodiment, a first notch group 1101 is further preferably provided in the area where the first transparent graphene thermally conductive film 11 is attached to the first plane 1201. Preferably, the opening ratio of the first notch group 1101 in the area is ≤20%, but is not limited to being greater than, less than or equal to 20%. Under the action of the first notch group 1101, the first transparent graphene thermally conductive film 11 is prevented from warping after being heated and pressed.

[0042] In this embodiment, the second transparent graphene thermally conductive film 14 is further preferably provided with a second notch group 1401 in the area where the second transparent graphene thermally conductive film 14 is attached to the second plane 1204. Preferably, the opening ratio of the second notch group 1401 in the area is ≤ 20%, but is not limited to being greater than, less than or equal to 20%. Under the action of the second notch group 1401, the second transparent graphene thermally conductive film 14 is prevented from warping after being heated and pressed.

[0043] In this embodiment, the edge of the panel frame 12 is preferably provided with a reinforcing structure 1202 for increasing the mechanical strength of the panel frame 12 to improve the reliability of the panel frame 12. The reinforcing structure 1202 can be any of "T", "L" and "O" shapes, but is not limited to these shapes.

[0044] In this embodiment, it is further preferred that an incident polarizer 4 is bonded to the outer surface of the first transparent graphene thermally conductive film 11, and the incident polarizer 4 is opposite to the incident surface of the LCD light valve 13; and an exit polarizer 5 is bonded to the outer surface of the second transparent graphene thermally conductive film 14, and the exit polarizer 5 is opposite to the exit surface of the LCD light valve 13.

[0045] Of course, the incident polarizer 4 can be attached between the incident surface of the LCD light valve 13 and the first transparent graphene thermal conductive film 11, and the exit polarizer 5 can be attached between the exit surface of the LCD light valve 13 and the second transparent graphene thermal conductive film 14, that is, the incident polarizer 4 is attached between the outer surface of the incident glass 1301 of the LCD light valve 13 and the first transparent graphene thermal conductive film 11, and the exit polarizer 5 is attached between the outer surface of the exit glass 1302 of the LCD light valve 13 and the second transparent graphene thermal conductive film 14. At this time, the thickness between the first plane 1201 and the second plane 1204 on the panel frame 12 needs to be added to the thickness of the incident polarizer 4 and the exit polarizer 5, so as to maintain the same planarity required for attaching the first transparent graphene thermal conductive film 11 and the second transparent graphene thermal conductive film 14.

[0046] In this embodiment, the heat generated by the incident polarizer 4 and the exit polarizer 5 due to absorbing light is transferred to their edge areas and the panel frame 12 by the first transparent graphene thermal conductive film 11 and the second transparent graphene thermal conductive film 14, respectively, which is beneficial to the rapid heat dissipation of the incident polarizer 4 and the exit polarizer 5 and improves the service life of the incident polarizer 4 and the exit polarizer 5.

[0047] Embodiment 2

[0048] like Figure 1-6 As shown, a light valve heat dissipation device 100 provided in this embodiment includes the self-heat-conducting light valve module 1 described in Example 1, and also includes a heat diffusion facility 2 installed on the outer peripheral wall of the self-heat-conducting light valve module 1. The heat of the self-heat-conducting light valve module 1 is transferred to the heat diffusion facility 2 and diffused into the air through the heat diffusion facility 2.

[0049] In this embodiment, the LCD light valve 13, the incident polarizer 4 and the exit polarizer 5 absorb the heat converted by the light, and quickly conduct it to the surfaces of the first transparent graphene thermal conductive film 11 and the second transparent graphene thermal conductive film 14, and are quickly transferred in the in-plane direction, and are quickly transferred to the panel frame 12 and the heat diffusion facility 2, and diffused into the air through the heat diffusion facility 2, so as to achieve the purpose of rapid heat dissipation of the LCD light valve 13, the incident polarizer 4 and the exit polarizer 5, effectively improve the service life of the LCD light valve 13, the incident polarizer 4 and the exit polarizer 5, so that the LCD light valve 13 can adapt to stronger light irradiation.

[0050] The design of the first gap group 1101 and the second gap group 1401 in this embodiment is conducive to preventing stress damage when the heat diffusion facility 2 presses the first transparent graphene thermal conductive film 11 and the second transparent graphene thermal conductive film 14, and effectively protects the first transparent graphene thermal conductive film 11 and the second transparent graphene thermal conductive film 14.

[0051] When the horizontal thermal conductivity of the transparent graphene thermal conductive film is ≥100W / m·k, the heat transfer coefficient and heat dissipation capacity of traditional air cooling are achieved. The horizontal thermal conductivity of the transparent graphene thermal conductive film in this embodiment has reached ≥1000W / m·k (the theoretical thermal conductivity of graphene is 5000W / m·k), and the heat dissipation effect is far better than traditional air cooling, and it has a simple structure, high cost performance, and is stable and reliable.

[0052] In this embodiment, the thermal diffusion facility 2 may adopt the following structure:

[0053] 1. The heat diffusion facility 2 adopts a fin heat sink 21 (see Figure 2 and 3 )、heat pipe radiator 22 (see Figure 4 )、Thermal diffusion sheet 23 (see Figure 5 ) and is not limited to these heat expansion methods, which can effectively and quickly dissipate the heat generated by the LCD light valve 13, the incident polarizer 4, and the output polarizer 5 into the air.

[0054] The airflow layout of the fin heat sink 21, the heat pipe heat sink 22, and the thermal diffusion sheet 23 should be designed in combination with the air duct and air beam flow direction of the projector to reduce the noise of the light valve heat sink 100 of this embodiment and improve the heat dissipation efficiency.

[0055] Preferably, the thermal diffusion sheet 23 is made of graphene thermal conductive sheet with an in-plane thermal conductivity of ≥ 2500 W / m·k, but is not limited to this material. Materials with higher thermal conductivity such as thermal conductive graphite sheet, aluminum, copper, etc. may also be used.

[0056] 2. If Figure 6As shown, the heat diffusion facility 2 includes a semiconductor refrigeration system 3 installed on the outer peripheral wall of the self-heat-conducting light valve module 1, and the semiconductor refrigeration system 3 includes an adapter plate 31, a semiconductor refrigeration sheet 32, and a radiator 33. The adapter plate 31 is installed on the outer peripheral wall of the self-heat-conducting light valve module 1; the cold end of the semiconductor refrigeration sheet 32 ​​is connected to the adapter plate 31, and the hot end is connected to the radiator 33. Through the semiconductor refrigeration system 3, the heat of the LCD light valve 13, the incident polarizer 4, and the output polarizer 5 is quickly dissipated into the air.

[0057] Preferably, the heat sink 33 includes any one of a fin heat sink, a heat pipe heat sink, and a heat conducting diffuser, but is not limited to these heat expansion and heat dissipation methods.

[0058] Preferably, the adapter plate 31 is made of a metal material with a thermal conductivity of more than 200 W / m·k, but is not limited to this thermal conductivity material.

[0059] In this embodiment, the surfaces of the adapter plate 31, the semiconductor cooling plate 32, and the heat sink 33 that contact each other for heat transfer are coated with thermal conductive silicone grease to effectively reduce the contact thermal resistance; at the same time, it is necessary to effectively prevent the formation of a thermal bridge short circuit between the adapter plate 31 and the heat sink 33 to reduce the heat dissipation efficiency.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A self-heating light valve module, characterized in that: It comprises a first transparent graphene heat-conducting film (11), a panel frame (12), an LCD light valve (13), and a second transparent graphene heat-conducting film (14); the two end surfaces of the panel frame (12) are respectively a first plane (1201) and a second plane (1204); the first plane (1201) and the second plane (1204) are parallel; A rectangular through hole (1203) is provided in the center of the panel frame (12), and the size of the rectangular through hole (1203) is greater than or equal to the maximum outer size of the glass substrate of the LCD light valve (13); the LCD light valve (13) is installed in the rectangular through hole (1203), and the incident surface of the LCD light valve (13) is on the same plane as the first plane (1201), and the exit surface of the LCD light valve (13) is on the same plane as the second plane (1204); The first transparent graphene heat-conductive film (11) is bonded to the first plane (1201) and the incident surface of the LCD light valve (13); and the second transparent graphene heat-conductive film (14) is bonded to the second plane (1204) and the exit surface of the LCD light valve (13).

2. The self-heating light valve module according to claim 1, characterized in that: A first group of notches (1101) is provided in an area where the first transparent graphene thermal conductive film (11) is attached to the first plane (1201).

3. The self-heating light valve module according to claim 1, characterized in that: A second group of notches (1401) is provided in the area where the second transparent graphene thermal conductive film (14) is attached to the second plane (1204).

4. The self-heating light valve module according to claim 1, characterized in that: An incident polarizer (4) is attached to the outer surface of the first transparent graphene heat-conductive film (11), or an incident polarizer (4) is attached between the incident surface of the LCD light valve (13) and the first transparent graphene heat-conductive film (11), and the incident polarizer (4) is opposite to the incident surface of the LCD light valve (13); An exit polarizer (5) is bonded to the outer surface of the second transparent graphene heat-conductive film (14), or an exit polarizer (5) is bonded between the exit surface of the LCD light valve (13) and the second transparent graphene heat-conductive film (14), and the exit polarizer (5) is opposite to the exit surface of the LCD light valve (13).

5. The self-heating light valve module according to claim 1, characterized in that: A reinforcement structure (1202) is provided on the edge of the panel frame (12).

6. The self-heating light valve module according to claim 1, characterized in that: The outer dimensions of the first transparent graphene thermally conductive film (11) are the same as the outer dimensions of the first plane (1201); and the outer dimensions of the second transparent graphene thermally conductive film (14) are the same as the outer dimensions of the second plane (1204).

7. A light valve heat dissipation device, characterized in that: The self-heat-conducting light valve module (1) comprises the self-heat-conducting light valve module (1) as claimed in any one of claims 1 to 6, and further comprises a heat diffusion facility (2) installed on the outer peripheral wall of the self-heat-conducting light valve module (1); the heat of the self-heat-conducting light valve module (1) is transferred to the heat diffusion facility (2) and diffused into the air through the heat diffusion facility (2).

8. The light valve heat dissipation device according to claim 7, characterized in that: The heat diffusion facility (2) comprises any one of a fin heat sink (21), a heat pipe heat sink (22), and a heat conduction diffusion sheet (23).

9. The light valve heat dissipation device according to claim 7, characterized in that: The heat diffusion facility (2) comprises a semiconductor refrigeration system (3).

10. The light valve heat dissipation device according to claim 9, characterized in that: The semiconductor refrigeration system (3) comprises an adapter plate (31), a semiconductor refrigeration sheet (32) and a radiator (33); the adapter plate (31) is mounted on the outer peripheral wall of the self-heat-conducting light valve module (1); the cold end of the semiconductor refrigeration sheet (32) is connected to the adapter plate (31); and the hot end of the semiconductor refrigeration sheet (32) is connected to the radiator (33).

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