Optical display module structure and projection equipment

Abstract

The invention is suitable for the technical field of projection, and particularly relates to an optical display module structure and projection equipment, the optical display module structure comprises an optical display module, and the optical display module comprises an LCD screen, a first light-transmitting part and a second light-transmitting part; the liquid cooling heat dissipation module comprises a mounting frame body; the second light-transmitting part, the first light-transmitting part and the LCD screen are sequentially arranged in the mounting frame body, so that the mounting frame body surrounds the edges of the LCD screen and the first light-transmitting part to form a first cavity, and the mounting frame body surrounds the edges of the second light-transmitting part and the first light-transmitting part to form a second cavity. When the cooling liquid enters the first cavity, liquid cooling heat dissipation is carried out on the LCD screen and the first light-transmitting piece, when the cooling liquid enters the second cavity, liquid cooling heat dissipation is carried out on the second light-transmitting piece and the first light-transmitting piece, it is guaranteed that the optical display module operates at a healthy temperature, the aging rate of the optical display module due to the too high temperature is reduced, and the service life of the optical display module is prolonged. And the service life of the projection equipment is prolonged.

Description

Technical Field

[0001] This application belongs to the field of projection technology, and in particular relates to an optical display module structure and projection device. Background Technology

[0002] The projection device includes a light source module, a display module, and a digital micromirror device. The light source module generates light, which is guided to the digital micromirror device through the display module. Each micromirror in the digital micromirror device flips according to the digital information of the image signal to control whether the light passes through. When the micromirror flips to a specific angle, the light is reflected onto the projection screen, magnifying the image and displaying it clearly on the screen.

[0003] In order to achieve higher brightness, high-power light source modules are usually used when the projection device is running. The light generated by the light source module has high temperature characteristics, which will cause the Fresnel lens and thin film transistor (TFT) components included in the display module to rise in temperature, and further lead to the temperature of the projection device.

[0004] High temperatures can accelerate the aging of the display module in projection equipment, thus shortening its lifespan. Summary of the Invention

[0005] This application provides an optical display module structure, which aims to solve the problem that the display modules of existing projection devices are kept at high temperatures for a long time, which leads to accelerated aging of the display modules and shortens the lifespan of the projection devices.

[0006] This application provides an optical display module structure, comprising:

[0007] An optical display module, comprising an LCD screen, a first light-transmitting element, and a second light-transmitting element; and

[0008] Liquid cooling heat dissipation module, including mounting frame;

[0009] The second light-transmitting element, the first light-transmitting element, and the LCD screen are sequentially arranged in the mounting frame, so that the mounting frame surrounds the edge of the LCD screen and the first light-transmitting element to form a first cavity, and the mounting frame surrounds the edge of the second light-transmitting element and the first light-transmitting element to form a second cavity;

[0010] The mounting frame is provided with a first liquid inlet channel and a first liquid outlet channel;

[0011] The first liquid inlet channel is connected to at least one of the first cavity or the second cavity, and the first liquid outlet channel is connected to at least one of the first cavity or the second cavity;

[0012] The first or second cavity is filled with coolant, which is in contact with the light-incident side of the LCD screen.

[0013] Furthermore, it also includes at least one liquid cooling heat dissipation assembly, which includes a liquid flow pipe, a liquid pump, a condenser, and a fan;

[0014] The liquid pump has an outlet and an inlet. The outlet is connected to the first inlet channel via a liquid flow pipe, the inlet is connected to the condenser via a liquid flow pipe, and the condenser is connected to the first outlet channel via a liquid flow pipe.

[0015] The fan's exhaust outlet faces the condenser.

[0016] Furthermore, the optical display module also includes a heat dissipation and light transmission component, which is bonded to one side of the light-emitting surface of the LCD screen by optical adhesive, and at least one edge of the four sides of the heat dissipation and light transmission component extends beyond the edge of the LCD screen in the same direction.

[0017] Furthermore, the heat dissipation and light transmission component includes at least one of plexiglass, ordinary glass, coated glass with thermal conductivity, ruby ​​glass, and quartz glass.

[0018] Furthermore, the mounting frame includes a lower shell, a middle shell, and an upper shell, with the first light-transmitting element installed inside the middle shell;

[0019] The upper shell is provided with a light outlet, and the LCD screen is located on the inner surface of the upper shell and covers the light outlet. The upper shell is connected to the middle shell so that the upper shell, the middle shell, the first light-transmitting element and the LCD screen form a first cavity.

[0020] The lower shell is provided with a light inlet, and the second light-transmitting element is provided on the inner surface of the lower shell and covers the light inlet. The lower shell is connected to the middle shell so that the lower shell, the middle shell, the second light-transmitting element and the first light-transmitting element form a second cavity.

[0021] The portion of the heat dissipation and light-transmitting component extending beyond the LCD screen is connected to at least one of the first cavity or the second cavity, and the coolant is in contact with the portion of the heat dissipation and light-transmitting component extending beyond the LCD screen.

[0022] Furthermore, a first sealing ring is provided between the upper shell and the LCD screen.

[0023] Furthermore, a second sealing ring is provided between the lower shell and the second light-transmitting element.

[0024] Furthermore, a grid flow channel is provided at the first liquid inlet channel so that the coolant flows evenly into the first cavity and / or the second cavity through the grid flow channel.

[0025] Secondly, this application also provides a projection device, including the optical display module structure as described above.

[0026] The beneficial effects of this application are as follows: The optical display module structure provided by this application includes an optical display module, which includes an LCD screen, a first light-transmitting element, and a second light-transmitting element; and a liquid cooling heat dissipation module, which includes a mounting frame; the second light-transmitting element, the first light-transmitting element, and the LCD screen are sequentially disposed within the mounting frame, such that the mounting frame surrounds the edges of the LCD screen and the first light-transmitting element to form a first cavity, and the mounting frame surrounds the edges of the second light-transmitting element and the first light-transmitting element to form a second cavity; the mounting frame is provided with a first liquid inlet channel and a first liquid outlet channel, the first liquid inlet channel being connected to at least one of the first cavity or the second cavity, and the first liquid outlet channel being connected to at least one of the first cavity or the second cavity; the first cavity and the second cavity are filled with coolant, and the coolant is in contact with the light-incident side of the LCD screen. The optical display module and the mounting frame form a first cavity and a second cavity. When the coolant enters the first cavity, it comes into contact with the light-incident side of the LCD screen and the first light-transmitting element, thereby providing liquid cooling for the LCD screen and the first light-transmitting element. When the coolant enters the second cavity, it comes into contact with the second light-transmitting element and the first light-transmitting element, thereby providing liquid cooling for the second light-transmitting element and the first light-transmitting element. This ensures that the optical display module operates at a healthy temperature, reduces the aging rate of the optical display module due to excessive temperature, and thus extends the service life of the projection equipment. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of one embodiment of the optical display module structure provided in this application;

[0028] Figure 2 This is a cross-sectional schematic diagram of the mounting frame of one embodiment of the optical display module structure provided in this application;

[0029] Figure 3 This is a cross-sectional schematic diagram of the mounting frame of another embodiment of the optical display module structure provided in this application.

[0030] Figure 4 This is a schematic diagram showing the disassembled structure of one embodiment of the optical display module structure provided in this application.

[0031] Explanation of reference numerals in the attached figures:

[0032] 110-LCD screen, 120-first light-transmitting element, 130-mounting frame, 131-lower shell, 132-middle shell, 133-upper shell, 134-first liquid inlet channel, 135-first liquid outlet channel, 140-liquid flow pipe, 150-liquid pump, 160-condenser, 170-fan, 180-second light-transmitting element, 190-optical adhesive, 200-adhesive ring, 210-first sealing ring, 220-second sealing ring, 230-first cavity, 240-second cavity, 250-heat dissipation and light-transmitting element, 260-grid flow channel. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. Examples of embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. Furthermore, it should be understood that the specific embodiments described herein are merely for explaining this application and are not intended to limit this application.

[0034] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "left", "right", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0036] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0037] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The following disclosure provides numerous different embodiments or examples for implementing various structures of this application. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of this application. Furthermore, reference values ​​and / or reference letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0039] The optical display module structure provided in this application includes an optical display module, which includes an LCD screen, a first light-transmitting element, and a second light-transmitting element; and a liquid cooling heat dissipation module, which includes a mounting frame; the second light-transmitting element, the first light-transmitting element, and the LCD screen are sequentially disposed within the mounting frame, such that the mounting frame surrounds the edges of the LCD screen and the first light-transmitting element to form a first cavity, and the mounting frame surrounds the edges of the second light-transmitting element and the first light-transmitting element to form a second cavity; the mounting frame is provided with a first liquid inlet channel and a first liquid outlet channel, the first liquid inlet channel being connected to at least one of the first cavity or the second cavity, and the first liquid outlet channel being connected to at least one of the first cavity or the second cavity; the first cavity and the second cavity are filled with coolant, and the coolant is in contact with the light-incident side of the LCD screen. The optical display module and the mounting frame form a first cavity and a second cavity. When the coolant enters the first cavity, it comes into contact with the LCD screen and the first light-transmitting element, thereby providing liquid cooling for the LCD screen and the first light-transmitting element. When the coolant enters the second cavity, it comes into contact with the second light-transmitting element and the first light-transmitting element, thereby providing liquid cooling for the second light-transmitting element and the first light-transmitting element. This ensures that the optical display module operates at a healthy temperature, reduces the aging rate of the optical display module due to excessive temperature, and thus extends the service life of the projection equipment.

[0040] like Figures 1 to 4 As shown, this application embodiment provides an optical display module structure, including:

[0041] An optical display module, comprising an LCD screen 110, a first light-transmitting element 120, and a second light-transmitting element 180; and

[0042] Liquid cooling heat dissipation module, including mounting frame 130;

[0043] The second light-transmitting element 180, the first light-transmitting element 120, and the LCD screen 110 are sequentially arranged inside the mounting frame 130, so that the mounting frame 130 surrounds the edges of the LCD screen 110 and the first light-transmitting element 120 to form a first cavity 230, and the mounting frame 130 surrounds the edges of the second light-transmitting element 180 and the first light-transmitting element 120 to form a second cavity 240;

[0044] The mounting frame 130 is provided with a first liquid inlet channel 134 and a first liquid outlet channel 135;

[0045] The first liquid inlet channel 134 is connected to at least one of the first cavity 230 or the second cavity 240, and the first liquid outlet channel 135 is connected to at least one of the first cavity 230 or the second cavity 240.

[0046] The first cavity 230 and the second cavity 240 are filled with coolant, which is in contact with the light-incident side of the LCD screen 110.

[0047] In practice, LCD stands for Liquid Crystal Display, and LCD screen 110 refers to a liquid crystal display screen, which will not be elaborated further.

[0048] The first light-transmitting element 120 can be any component with light-transmitting properties, such as a polarizing film, without limitation.

[0049] The mounting frame 130 is used to fix the LCD screen 110 and the first light-transmitting element 120. The LCD screen 110 and the first light-transmitting element 120 are both located in the light propagation path of the projection device, so that the light emitted by the light source is further guided to the digital micromirror device through the first light-transmitting element 120 and the LCD screen 110. This will not be described in detail.

[0050] The first light-transmitting element 120 and the LCD screen 110 are sequentially arranged in the mounting frame 130 along the light propagation direction, such that the mounting frame 130 surrounds the edge of the LCD screen 110 and the first light-transmitting element 120. At this time, the mounting frame 130, the LCD screen 110 and the first light-transmitting element 120 form the first cavity 230.

[0051] Optionally, the optical display module further includes a second light-transmitting element 180, which is disposed within the mounting frame 130, so that the mounting frame 130 surrounds the second light-transmitting element 180 and the first light-transmitting element 120 to form a second cavity 240.

[0052] In practice, the second light-transmitting element 180 uses a Fresnel lens, which means that the light generated by the light source of the projection device will pass through the second light-transmitting element 180, the first light-transmitting element 120 and the LCD screen 110 in sequence, which will also cause the temperature of the second light-transmitting element 180 to rise.

[0053] The mounting frame 130 is provided with a first liquid inlet channel 134 and a first liquid outlet channel 135. The first liquid inlet channel 134 is connected to the first cavity 230, so that coolant can flow into the first cavity 230 through the first liquid inlet channel 134. Similarly, the first liquid outlet channel 135 is connected to the first cavity 230, so that coolant can flow out of the cavity through the first liquid outlet channel 135 and then flow to other devices, such as coolant storage devices. The coolant storage device can also be connected to the first liquid inlet channel 134 to realize the recycling of coolant.

[0054] Optionally, the first inlet channel 134 is connected to the second cavity 240, allowing coolant to flow into the second cavity 240 through the first inlet channel 134. Similarly, the first outlet channel 135 is connected to the second cavity 240, allowing coolant to flow out of the second cavity 240 through the first outlet channel 135 and then flow into other devices, such as the aforementioned coolant storage device, to achieve the recycling of coolant.

[0055] Optionally, the first inlet channel 134 is simultaneously connected to the first cavity 230 and the second cavity 240, allowing coolant to flow into the first cavity 230 and the second cavity 240 through the first inlet channel 134. Similarly, the first outlet channel 135 is connected to the first cavity 230 and the second cavity 240, allowing coolant to flow out of the first cavity 230 and the second cavity 240 through the first outlet channel 135, and then flow to other devices, such as the aforementioned coolant storage device, to achieve the recycling of coolant.

[0056] Optionally, the coolant may be any of the following: including but not limited to water, oil, and other commercially available coolants.

[0057] In implementation, the optical display module structure provided in this application is applied to a projection device. The light generated by the light source of the projection device passes through the second light-transmitting element 180, the first light-transmitting element 120, and the LCD screen 110. Since the light has a certain temperature, when the light passes through the second light-transmitting element 180, the first light-transmitting element 120, and the LCD screen 110, the temperature of these elements will rise. When the coolant enters the first cavity 230, the coolant comes into contact with the light-incident side of the LCD screen 110 and also with the first light-transmitting element 120. The heat from the first light-transmitting element 120 and the LCD screen 110 is conducted to the coolant, thereby achieving liquid cooling for the first light-transmitting element 120 and the LCD screen 110. Similarly, the coolant also flows into the second cavity 240, thereby providing liquid cooling for the first light-transmitting element 120 and the second light-transmitting element 180, thus better ensuring that the optical display module operates within a healthy temperature range and extending the service life of the optical display module.

[0058] Optionally, the first liquid inlet channel 134 can be located below the first liquid outlet channel 135 to avoid the formation of air bubbles in the first cavity 230 and the second cavity 240, thus ensuring heat dissipation and projection effects.

[0059] The optical display module structure provided in this application includes an optical display module, which includes an LCD screen 110, a first light-transmitting element 120, and a second light-transmitting element 180; and a liquid cooling heat dissipation module, which includes a mounting frame 130; the second light-transmitting element 180, the first light-transmitting element 120, and the LCD screen 110 are sequentially disposed within the mounting frame 130, such that the mounting frame 130 surrounds the edges of the LCD screen 110 and the first light-transmitting element 120 to form a first cavity 230, and the mounting frame 130 surrounds the second light-transmitting element 180. The edges of the light element 180 and the first light-transmitting element 120 form a second cavity 240; the mounting frame 130 is provided with a first liquid inlet channel 134 and a first liquid outlet channel 135, the first liquid inlet channel 134 is connected to at least one of the first cavity 230 or the second cavity 240, and the first liquid outlet channel 135 is connected to at least one of the first cavity 230 or the second cavity 240; the first cavity 230 and the second cavity 240 are filled with coolant, and the coolant is in contact with the light-incident side of the LCD screen 110. The optical display module and the mounting frame 130 form a first cavity 230 and a second cavity 240. When the coolant enters the first cavity 230, it comes into contact with the light-incident side of the LCD screen 110 and the first light-transmitting element 120, thereby providing liquid cooling for the LCD screen 110 and the first light-transmitting element 120. When the coolant enters the second cavity 240, it comes into contact with the second light-transmitting element 180 and the first light-transmitting element 120, thereby providing liquid cooling for the second light-transmitting element 180 and the first light-transmitting element 120. This ensures that the optical display module operates at a healthy temperature, reduces the rate of aging of the optical display module due to excessive temperature, and thus extends the service life of the projection equipment.

[0060] In some embodiments, the optical display module structure provided in this application further includes at least one set of liquid cooling heat dissipation components, which include a liquid flow pipe 140, a liquid pump 150, a condenser 160, and a fan 170.

[0061] The liquid pump 150 has an outlet and an inlet. The outlet is connected to the first inlet channel 134 through a liquid flow pipe 140, the inlet is connected to the condenser 160 through a liquid flow pipe 140, and the condenser 160 is connected to the first outlet channel 135 through a liquid flow pipe 140.

[0062] The air outlet of fan 170 faces condenser 160.

[0063] In practice, the coolant can circulate between the liquid pump 150, the first chamber 230, and the condenser 160. For example, the liquid pump 150 pumps the coolant to the first chamber 230, so that the coolant comes into contact with the LCD screen 110 and the first light-transmitting element 120 to absorb heat. The coolant then flows from the first chamber 230 to the condenser 160. Since the air outlet of the fan 170 faces the condenser 160, the fan 170 blows air into the condenser 160 to cool the coolant in the condenser 160. The cooled coolant then flows from the condenser 160 to the liquid pump 150, and is pumped by the liquid pump 150 into the first chamber 230, thus realizing the circulation of the coolant.

[0064] Optionally, the coolant can also circulate between the liquid pump 150, the second chamber 240, and the condenser 160. For details, please refer to the above. The principle of the coolant circulating between the liquid pump 150, the first chamber 230, and the condenser 160 will not be repeated here.

[0065] As one possible implementation, the optical display module also includes a heat dissipation and light transmission component 250, which is bonded to one side of the light-emitting surface of the LCD screen 110 by optical adhesive 190, and at least one edge of the four sides of the heat dissipation and light transmission component 250 extends beyond the edge of the LCD screen 110 in the same direction.

[0066] In practice, the heat dissipation and light transmission component 250 is heat dissipation glass, which can effectively absorb the heat of the LCD screen 110, thereby dissipating heat from the LCD screen 110.

[0067] Optionally, the heat dissipation and light transmission component 250 includes at least one of plexiglass, ordinary glass, coated glass with thermal conductivity, ruby ​​glass, and quartz glass, without limitation.

[0068] Optionally, the portion of the heat dissipation light-transmitting element 250 extending beyond the LCD screen 110 is connected to one of the first cavity 230 or the second cavity 240, and the coolant comes into contact with the portion of the heat dissipation light-transmitting element 250 extending beyond the LCD screen 110. The coolant absorbs the heat from the heat dissipation light-transmitting element 250 to further dissipate heat from the LED screen and improve heat dissipation efficiency.

[0069] In some embodiments, the mounting frame 130 includes a lower shell 131, a middle shell 132 and an upper shell 133, and the first light-transmitting element 120 is installed in the middle shell 132;

[0070] The upper shell 133 is provided with a light outlet, and the LCD screen 110 is disposed on the inner surface of the upper shell 133 and covers the light outlet. The upper shell 133 is connected to the middle shell 132 so that the upper shell 133, the middle shell 132, the first light-transmitting element 120 and the LCD screen 110 form the first cavity 230.

[0071] The lower shell 131 is provided with a light inlet, and the second light-transmitting element 180 is provided on the inner surface of the lower shell 131 and covers the light inlet. The lower shell 131 is connected to the middle shell 132 so that the lower shell 131, the middle shell 132, the second light-transmitting element 180 and the first light-transmitting element 120 form the second cavity 240.

[0072] In practice, the lower shell 131, the middle shell 132 and the upper shell 133 are connected from bottom to top to form the mounting frame 130. The upper shell 133 and the lower shell 131 are respectively provided with a light outlet and a light inlet. That is to say, the lower shell 131 is closer to the light source than the upper shell 133, so that the light emitted by the light source will pass through the second light-transmitting element 180, the first light-transmitting element 120 and the LCD screen 110 in sequence.

[0073] The first light-transmitting element 120 is installed inside the middle shell 132, and the LCD screen 110 is installed at the light outlet of the upper shell 133. By fixing the upper shell 133 to the middle shell 132, the upper shell 133, the middle shell 132, the first light-transmitting element 120, and the LCD screen 110 form the first cavity 230. Similarly, the second light-transmitting element 180 is installed at the light inlet of the lower shell 131. By fixing the lower shell 131 to the middle shell 132, and with the upper shell 133 and the lower shell 131 located on both sides of the middle shell 132, the lower shell 131, the middle shell 132, the second light-transmitting element 180, and the first light-transmitting element 120 form the second cavity 240.

[0074] Optionally, a rubber ring 200 is provided between the first light-transmitting element 120 and the middle shell 132, a first sealing ring 210 is provided between the upper shell 133 and the LCD screen 110, and a second sealing ring 220 is provided between the lower shell 131 and the second light-transmitting element 180. These features effectively ensure the sealing of the first cavity 230 and the second cavity 240, preventing leakage and guaranteeing the safe and stable operation of the projection equipment.

[0075] In some embodiments, a grid flow channel 260 is provided at the first liquid inlet channel 134 to allow coolant to flow uniformly into the first cavity 230 and / or the second cavity 240 through the grid flow channel 260. The grid flow channel 260 can make the coolant flow uniformly, reduce the fluid velocity difference and temperature difference of the coolant, reduce turbulence and bubbles, thereby improving heat dissipation efficiency, and at the same time reduce the impact on the optical path, ensuring the projection effect.

[0076] Secondly, this application also provides a projection device, including the optical display module structure as described above.

[0077] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the structure and implementation principle of the projection device described above can be referred to the corresponding structure and implementation principle in the foregoing embodiments, and will not be repeated here.

[0078] The optical display module structure provided in this application includes an optical display module, which includes an LCD screen 110, a first light-transmitting element 120, and a second light-transmitting element 180; and a liquid cooling heat dissipation module, which includes a mounting frame 130; the second light-transmitting element 180, the first light-transmitting element 120, and the LCD screen 110 are sequentially disposed within the mounting frame 130, such that the mounting frame 130 surrounds the edges of the LCD screen 110 and the first light-transmitting element 120 to form a first cavity 230, and the mounting frame 130 surrounds the second light-transmitting element 180. The edges of the light element 180 and the first light-transmitting element 120 form a second cavity 240; the mounting frame 130 is provided with a first liquid inlet channel 134 and a first liquid outlet channel 135, the first liquid inlet channel 134 is connected to at least one of the first cavity 230 or the second cavity 240, and the first liquid outlet channel 135 is connected to at least one of the first cavity 230 or the second cavity 240; the first cavity 230 and the second cavity 240 are filled with coolant, and the coolant is in contact with the light-incident side of the LCD screen 110. The optical display module and the mounting frame 130 form a first cavity 230 and a second cavity 240. When the coolant enters the first cavity 230, it comes into contact with the light-incident side of the LCD screen 110 and the first light-transmitting element 120, thereby providing liquid cooling for the LCD screen 110 and the first light-transmitting element 120. When the coolant enters the second cavity 240, it comes into contact with the second light-transmitting element 180 and the first light-transmitting element 120, thereby providing liquid cooling for the second light-transmitting element 180 and the first light-transmitting element 120. This ensures that the optical display module operates at a healthy temperature, reduces the rate of aging of the optical display module due to excessive temperature, and thus extends the service life of the projection equipment.

[0079] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An optical display module structure, characterized in that, include: An optical display module, comprising an LCD screen, a first light-transmitting element, and a second light-transmitting element; as well as A liquid-cooled heat dissipation module, the liquid-cooled heat dissipation module including a mounting frame; The second light-transmitting element, the first light-transmitting element, and the LCD screen are sequentially disposed within the mounting frame, such that the mounting frame surrounds the edges of the LCD screen and the first light-transmitting element to form a first cavity, and the mounting frame surrounds the edges of the second light-transmitting element and the first light-transmitting element to form a second cavity; The mounting frame is provided with a first liquid inlet channel and a first liquid outlet channel; The first liquid inlet channel is connected to at least one of the first cavity or the second cavity, and the first liquid outlet channel is connected to at least one of the first cavity or the second cavity; The first cavity and the second cavity are filled with coolant, which is in contact with the light-incident side of the LCD screen.

2. The optical display module structure according to claim 1, characterized in that, It also includes at least one liquid cooling heat dissipation assembly, which includes a liquid flow pipe, a liquid pump, a condenser, and a fan; The liquid pump has an outlet and an inlet. The outlet is connected to the first inlet channel via a liquid flow pipe. The inlet is connected to the condenser via a liquid flow pipe. The condenser is connected to the first outlet channel via a liquid flow pipe. The fan's outlet faces the condenser.

3. The optical display module structure according to claim 1, characterized in that, The optical display module also includes a heat dissipation and light transmission component, which is bonded to one side of the light-emitting surface of the LCD screen by optical adhesive, and at least one edge of the four sides of the heat dissipation and light transmission component extends beyond the edge of the LCD screen in the same direction.

4. The optical display module structure according to claim 3, characterized in that, The heat dissipation and light transmission component includes at least one of plexiglass, ordinary glass, coated glass with thermal conductivity, ruby ​​glass, and quartz glass.

5. The optical display module structure according to claim 1, characterized in that, The mounting frame includes a lower shell, a middle shell, and an upper shell, and the first light-transmitting element is installed inside the middle shell; The upper shell is provided with a light outlet, the LCD screen is disposed on the inner surface of the upper shell and covers the light outlet, and the upper shell is connected to the middle shell so that the upper shell, the middle shell, the first light-transmitting element and the LCD screen form the first cavity; The lower shell is provided with a light inlet, and the second light-transmitting element is disposed on the inner surface of the lower shell and covers the light inlet. The lower shell is connected to the middle shell so that the lower shell, the middle shell, the second light-transmitting element and the first light-transmitting element form the second cavity.

6. The optical display module structure according to claim 4 or 5, characterized in that, The portion of the heat dissipation and light-transmitting component extending beyond the LCD screen is connected to at least one of the first cavity or the second cavity, and the coolant is in contact with the portion of the heat dissipation and light-transmitting component extending beyond the LCD screen.

7. The optical display module structure according to claim 5, characterized in that, A first sealing ring is provided between the upper shell and the LCD screen.

8. The optical display module structure according to claim 5, characterized in that, A second sealing ring is provided between the lower shell and the second light-transmitting element.

9. The optical display module structure according to claim 1, characterized in that, A grid flow channel is provided at the first liquid inlet channel so that the coolant flows evenly into the first cavity and / or the second cavity through the grid flow channel.

10. A projection device, characterized in that, It includes the optical display module structure according to any one of claims 1 to 9.

Images