An LED display having a quantum film

Abstract

This invention discloses an LED display with a quantum dot film, relating to the field of liquid crystal displays. It includes a frame, in which a liquid crystal panel, a backlight film, and an LED backlight source board are sequentially mounted in a slot on the front side of the frame. An elastic heat dissipation component is movably mounted on the inner wall of the frame. Several ventilation holes communicating with the cavity are opened on two inclined slots. Air inlets communicating with the slot are opened on the inner walls of the ventilation holes. A baffle is provided at each ventilation hole. Pushing components are provided at the bottom of both sides of the cavity. These pushing components are used to push the baffles to move and expose the ventilation holes when the display is started. The pushing components also synchronously drive the elastic heat dissipation component to move, leaving a gap between the component and the backlight film to facilitate the exposure of the air inlets in the slot. This invention can quickly dissipate the heat generated by the LED backlight source and control chip when the display is started. When the display is stopped, it forms an all-around sealed protection for the edge of the quantum dot film, effectively blocking the intrusion of oxygen and moisture.

Description

Technical Field

[0001] This invention relates to the technical field of liquid crystal displays, specifically to an LED display with a quantum film. Background Technology

[0002] As one of the mainstream display devices on the market, the color performance of LCD monitors has always been a focus of attention for manufacturers and consumers. Against this backdrop, LCD monitors with quantum dot films have emerged and quickly gained prominence. These monitors, with their excellent color gamut performance, can present richer and more realistic colors, greatly enhancing the user's visual experience.

[0003] However, existing LCD displays are not well-suited to meet the requirements of heat dissipation and sealing protection. The heat continuously generated by the LED backlight needs to be dissipated quickly, but the existing sealing components and quantum dot films are always in contact. This not only directly blocks the heat dissipation airflow channel in the tank, causing heat accumulation, but also causes fluctuations in the sealing gap due to the thermal expansion and contraction of the quantum dot film and the mutual compression of the sealing components. This affects both heat dissipation efficiency and seal stability. Summary of the Invention

[0004] Therefore, the purpose of this invention is to provide an LED display with a quantum film to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: An LED display with a quantum film includes a frame. A liquid crystal panel, a backlight film, and an LED backlight board are sequentially mounted in a slot on the front of the frame. The backlight film is located between the liquid crystal panel and the LED backlight board. An elastic heat dissipation component is movably mounted on the inner wall of the frame, located at the edge of the backlight film. A cavity for mounting a control chip is formed inside the frame. Sloping grooves are provided at the center of the corners on both sides of the back of the frame. Several ventilation holes communicating with the cavity are formed on the two sloping grooves. Air inlets communicating with the slot are formed on the inner walls of the ventilation holes. Covering baffles are provided at the ventilation holes. The baffles are connected to each other to form a whole. Pushing components are provided at the bottom of both sides of the cavity. These pushing components are used to move the baffles to expose the ventilation holes when the display is turned on. The pushing components also synchronously drive the elastic heat dissipation component. A gap is left between the elastic heat dissipation component and the backlight film to facilitate the exposure of the air inlets in the slot, enabling effective heat dissipation from inside the display.

[0006] Specifically, the elastic heat dissipation component includes a U-shaped rod. The two side walls of the slot of the frame are outwardly sloping and the top corner is provided with an inwardly guiding surface. The U-shaped rod is movably disposed in the slot. The two sides of the U-shaped rod are inclined outward and contact the two side walls of the slot. The inner wall of the U-shaped rod is provided with a groove. The two side walls of the groove are provided with slots. Spring buffer pads are glued to the two slots. There is an movable gap between the bottom of the slot of the frame and the U-shaped rod.

[0007] Specifically, in this technical solution, the inner walls of both spring buffer pads extend beyond the groove width of the slot to form a pre-compression allowance. The sides and bottom of the backlight film are located in the groove of the U-shaped rod, and the inner walls of both spring buffer pads are in flexible contact with the edge of the backlight film.

[0008] Specifically, in this technical solution, the top corner of the U-shaped rod is set as an arc surface that matches the guide surface, and the top of both sides of the U-shaped rod are integrally provided with a plug-in block. The top walls of the slot chamber of the frame are provided with plug-in slots that match the plug-in blocks on both sides, and the bottom outer wall of the U-shaped rod is symmetrically provided with inclined guide slots.

[0009] Specifically, each of the aforementioned driving components includes a bidirectional motor. The mounting base of the bidirectional motor is fixed to the cavity wall of the chamber by screws. The frame has driving cavities on both sides of the cavity. One output end of the bidirectional motor is connected to an obliquely arranged rotating shaft via a universal coupling. One end of the rotating shaft is rotatably connected to the cavity wall of the driving cavity. A first lead screw is rotatably installed on the side of the driving cavity away from the rotating shaft. The first lead screw is parallel to the rotating shaft, and transmission wheels are fixedly sleeved on both the first lead screw and the rotating shaft. The two transmission wheels are connected by a transmission chain.

[0010] Specifically, in this technical solution, the bottom of both inclined grooves is provided with a pushing groove. The other end of the first lead screw extends out of the drive cavity into the pushing groove and is rotatably connected to the groove wall. A moving block is sleeved on the threaded end of the first lead screw located in the pushing groove. The outer walls on both sides of the moving block are in sliding contact with the groove wall of the pushing groove. The top of the moving block extends out of the pushing groove and is fixed to the bottommost baffle screw.

[0011] Specifically, in this technical solution, the other output end of the bidirectional motor is connected to a second lead screw via a flange. A movable block is sleeved on the second lead screw. An L-shaped groove is formed on the bottom wall of the drive cavity below the second lead screw. The L-shaped groove is connected to the bottom of the slot chamber of the frame. A vertical plate is fixed on the lower surface of the movable block. The vertical plate is located in the vertical groove of the L-shaped groove and is in sliding contact. An inclined push plate is welded to the bottom of the outer wall of the vertical plate. The push plate passes through the horizontal groove of the L-shaped groove.

[0012] Specifically, in this technical solution, a support plate is provided at the end of the second lead screw in the drive cavity, the end of the second lead screw is rotatably connected to the support plate, and the end of the push plate is slidably connected to the guide groove of the U-shaped rod in the elastic heat dissipation assembly.

[0013] Specifically, in this technical solution, a sealing gasket is embedded in the top of the slot of the frame, and the top of the backlight film is in close contact with the sealing gasket.

[0014] Specifically, the backlight film in this technical solution is composed of a light diffuser plate, a quantum dot film, a brightness enhancement film, and a blue light refractive film.

[0015] In summary, the present invention has the following beneficial effects: when the display is started, the push component synchronously drives the baffle to move and expose the ventilation hole, while driving the elastic heat dissipation component to create a gap with the edge of the backlight film, so that the air inlet hole is connected with the slot chamber, forming a complete heat dissipation airflow channel that enters from the ventilation hole, flows through the cavity and the slot chamber, quickly removes the heat generated by the LED backlight and control chip, ensures that the quantum dot film works in a suitable temperature environment, and avoids the degradation of display performance caused by the decrease in thermal stability; When the monitor stops, the push component resets, the baffle covers the ventilation holes again, the elastic heat dissipation component resets upward, and its spring buffer pad flexibly fits the edge of the backlight film. Together with the sealing pad at the top of the frame slot, it forms an all-round sealing protection for the edge of the quantum dot film, effectively blocking the intrusion of oxygen and moisture, delaying the performance degradation of the quantum dot film, and extending the overall lifespan of the monitor. Furthermore, the U-shaped rod of the elastic heat dissipation component forms a physical limit on the edge of the backlight film through the groove, and with the flexible contact of the spring buffer pad, it prevents the film from shifting when it expands or contracts due to heat or vibrates. This ensures accurate alignment when switching between sealing and heat dissipation, and also prevents damage to the edge of the film. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the display's front axis structure according to the present invention; Figure 2 This is a schematic diagram of the oblique axis structure of the display of the present invention; Figure 3 This is a schematic diagram of the half-section structure of the frame of the present invention; Figure 4 This is a schematic diagram of the horizontal half-section structure of the frame of the present invention; Figure 5 This is a schematic diagram of the cross-sectional structure of the frame on the back side of the present invention; Figure 6 This is an exploded view of the backlight film and elastic heat dissipation component of the present invention; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8This is a schematic diagram of the pushing component structure of the present invention; Figure 9 For the present invention Figure 8 Enlarged view of section B in the middle.

[0017] Figure Descriptions: 1. Frame; 101. Chamber; 102. Inclined Slot; 103. Ventilation Hole; 104. Air Inlet; 105. L-shaped Slide; 106. Drive Chamber; 107. Push Slot; 2. LCD Panel; 3. Backlight Film; 4. LED Backlight Board; 5. Elastic Heat Dissipation Assembly; 501. U-shaped Rod; 5011. Groove; 502. Insert Block; 503. Slot; 504. Spring Buffer Pad; 505. Guide Slot; 6. Baffle; 601. Connecting Block; 7. Push Assembly; 701. Bidirectional Motor; 702. Universal Coupling; 703. Rotating Shaft; 704. First Lead Screw; 705. Transmission Wheel; 7051. Transmission Chain; 706. Moving Block; 707. Second Lead Screw; 708. Movable Block; 709. Vertical Plate; 7091. Push Plate; 710. Support Plate. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] The embodiments of the present invention will now be described.

[0020] It should be noted that a control main board is installed in chamber 101, and the bidirectional motor 701 in the drive assembly 7 is electrically connected to the control main board through wires.

[0021] In this embodiment, please refer to Figures 1-6As shown, an LED display with a quantum dot film includes a frame 1. A liquid crystal panel 2, a backlight film 3, and an LED backlight source board 4 are sequentially mounted in a slot on the front of the frame 1. The backlight film 3 is located between the liquid crystal panel 2 and the LED backlight source board 4. The backlight film 3 is composed of a light diffuser plate, a quantum dot film, a brightness enhancement film, and a blue light refraction film. A sealing gasket is embedded in the top of the slot of the frame 1, and the top of the backlight film 3 is in close contact with the sealing gasket. An elastic heat dissipation assembly 5 is movably provided on the inner sidewall of the frame 1, located at the edge of the backlight film 3. A cavity 101 for mounting a control chip is opened inside the frame 1. Sloping grooves are provided at the center of the corners on both sides of the back of the frame 1. 102. Each of the two inclined slots 102 has several ventilation holes 103 communicating with the chamber 101. The inner walls of the ventilation holes 103 have air inlets 104 communicating with the chamber. Each ventilation hole 103 has a cover plate 6. The plates 6 are connected by a connecting block 601 to form a whole. Both sides of the bottom of the chamber 101 have a pushing component 7. The pushing component 7 is used to push the plate 6 to move and expose the ventilation holes 103 when the display is turned on. The pushing component 7 also drives the elastic heat dissipation component 5 to move synchronously. There is a gap between the elastic heat dissipation component 5 and the backlight film 3 to expose the air inlets 104 in the chamber for effective heat dissipation inside the display.

[0022] When the display is powered on, the control board in the chamber 101 starts up and sends a drive signal to the bidirectional motor 701 of the push assembly 7 through the wire. The bidirectional motor 701 starts to run and drives the two output ends to move synchronously. One output end moves synchronously through the universal coupling 702 and the transmission drive baffle 6 of the transmission wheel 705. Through the connection of the connecting block 601, all the baffles 6 slide along the inclined groove 102 and gradually expose the ventilation hole 103. The other output end drives the vertical plate 709 and the push plate 7091 to move through the second lead screw 707 and the movable block 708. The end of the push plate 7091 slides in the guide groove 505 and generates an oblique thrust, which pushes the U-shaped rod 501 in the elastic heat dissipation assembly 5 to move along the inclined surface and guide surface of the frame 1 chamber. The U-shaped rod 501 moves towards the movable gap at the bottom of the chamber. As the U-shaped rod 501 moves downward, the spring buffer pad 504 and the edge of the backlight film 3 gradually separate, eventually forming a stable gap. The air inlet 104, which was originally blocked by the U-shaped rod 501, is fully exposed, realizing the connection between the cavity 101, the ventilation hole 103, the air inlet 104 and the slot. External air enters the cavity 101 through the ventilation hole 103, and after controlling the motherboard to dissipate heat, it enters the slot of the frame 1 through the air inlet 104. It flows through the gap between the liquid crystal panel 2, the backlight film 3 and the LED backlight board 4, quickly carrying away the heat generated by the LED backlight board 4 when it is working. Finally, it is discharged from the gap of the slot, forming a complete heat dissipation airflow channel, quickly carrying away the heat generated by the LED backlight and the control chip, ensuring that the quantum dot film works in a suitable temperature environment, and avoiding the degradation of display performance caused by the decrease in thermal stability. In order to prevent dust from entering, a dustproof mesh can be set at the port of the ventilation hole 103. When the monitor is powered off, the control motherboard sends a reverse drive signal to the bidirectional motor 701. The bidirectional motor 701 rotates in reverse, driving all components to reset, effectively blocking external oxygen and moisture, protecting the quantum dot film in the backlight film 3 to maintain stable performance, and extending the monitor's lifespan.

[0023] Please see Figures 4-9 As shown, the elastic heat dissipation component 5 includes a U-shaped rod 501. The side walls of the slot of the frame 1 are both outwardly sloping, and the top corner has an inwardly guiding surface. The U-shaped rod 501 is movably disposed in the slot. Both sides of the U-shaped rod 501 are inclined outwards and contact the side walls of the slot. A groove 5011 is formed on the inner wall of the U-shaped rod 501. A slot 503 is formed on both sides of the groove 5011. A spring buffer pad 504 is adhered to each of the two slots 503. A movable gap is provided between the bottom of the slot of the frame 1 and the U-shaped rod 501. The two spring buffer pads 504... The inner sidewalls of 4 all exceed the width of the slot 503 to form a pre-compression margin. The sides and bottom of the backlight film 3 are located in the groove 5011 of the U-shaped rod 501. The inner sidewalls of the two spring buffer pads 504 are in flexible contact with the edge of the backlight film 3. The top corner of the U-shaped rod 501 is set as an arc surface that matches the guide surface. The top of both sides of the U-shaped rod 501 are integrally provided with plug-in blocks 502. The top walls of the slot chamber of the frame 1 are provided with plug-in slots that match the plug-in blocks 502. The bottom side of the outer wall of the U-shaped rod 501 is symmetrically provided with inclined guide slots 505. Each actuating assembly 7 includes a bidirectional motor 701. The mounting base of the bidirectional motor 701 is fixed to the cavity wall of the chamber 101 by screws. Drive chambers 106 are provided on both sides of the chamber 101 inside the frame 1. One output end of the bidirectional motor 701 is connected to an obliquely arranged rotating shaft 703 via a universal coupling 702. One end of the rotating shaft 703 is rotatably connected to the cavity wall of the drive chamber 106. A first lead screw 704 is rotatably mounted on the side of the drive chamber 106 away from the rotating shaft 703. The first lead screw 704 is parallel to the rotating shaft 703 and is... A transmission wheel 705 is fixedly sleeved on the rotating shaft 703. The two transmission wheels 705 are connected by a transmission chain 7051. The bottom of the two inclined grooves 102 are provided with a pushing groove 107. The other end of the first lead screw 704 extends out of the drive cavity 106 and into the pushing groove 107 and is rotatably connected to the groove wall. A moving block 706 is sleeved on the threaded end of the first lead screw 704 located in the pushing groove 107. The outer walls on both sides of the moving block 706 are in sliding contact with the groove wall of the pushing groove 107. The top of the moving block 706 extends out of the pushing groove 107 and is fixed to the bottom baffle 6 with screws. Another output end of the bidirectional motor 701 is connected to a second lead screw 707 via a flange. A movable block 708 is fitted on the second lead screw 707. An L-shaped groove 105 is provided on the bottom wall of the drive cavity 106 below the second lead screw 707. The L-shaped groove 105 is connected to the bottom of the slot chamber of the frame 1. A vertical plate 709 is fixed on the lower surface of the movable block 708. The vertical plate 709 is located in the vertical groove of the L-shaped groove 105 and is in sliding contact. An inclined push plate 7091 is welded to the bottom of the outer wall of the vertical plate 709. The push plate 7091 passes through the horizontal groove of the L-shaped groove 105. A support plate 710 is provided at the end of the second lead screw 707 in the drive cavity 106. The end of the second lead screw 707 is rotatably connected to the support plate 710. The end of the push plate 7091 is slidably connected to the guide groove 505 of the U-shaped rod 501.

[0024] After the monitor is powered on, one output end of the bidirectional motor 701 drives the inclined shaft 703 to rotate through the universal coupling 702. The transmission wheel 705 on the shaft 703 drives the transmission wheel 705 on the first lead screw 704 to rotate synchronously through the transmission chain 7051, thereby driving the first lead screw 704 to rotate. Since the moving block 706 is threadedly connected to the first lead screw 704 and its two sides slide in contact with the groove wall of the push groove 107, when the first lead screw 704 rotates, it drives the moving block 706 to move along the push groove 107 in a direction away from the drive cavity 106. The top of the moving block 706 drives the bottom baffle 6 to move synchronously. Through the action of the connecting block 601, all the baffles 6 slide along the inclined groove 102 as a whole, gradually exposing the ventilation hole 103. Simultaneously, the other output end of the bidirectional motor 701 drives the second lead screw 707 to rotate via a flange. The movable block 708 on the second lead screw 707 moves away from the bidirectional motor 701 under the action of the thread. The movable block 708 drives the vertical plate 709 on the lower surface to slide along the vertical groove of the L-shaped slide groove 105. The push plate 7091 at the bottom of the vertical plate 709 moves synchronously along the horizontal groove of the L-shaped slide groove 105. The end of the push plate 7091 slides in the guide groove 505 (due to the inclination of the guide groove 505) and generates an oblique thrust, pushing the U-shaped rod 501 to move along the inclined surface and guide surface of the frame 1 slot. Under the action of the thrust, the U-shaped rod 501 moves as a whole towards the movable gap at the bottom of the slot, and the plug block 502 at the top gradually disengages from the frame 1 slot. As the U-shaped rod 501 moves down, the two sides of the U-shaped rod 501 tilt outward from vertical. The spring buffer pad 504 in the bottom groove 5011 gradually separates from the edge of the backlight film 3, and the air inlet 104, which was originally blocked by the U-shaped rod 501, is fully exposed, realizing the connection between the cavity 101, the ventilation hole 103, the air inlet 104 and the slot. External air enters the cavity 101 through the ventilation hole 103, and after controlling the heat dissipation of the motherboard, it enters the slot of the frame 1 through the air inlet 104, flows through the gap between the liquid crystal panel 2, the backlight film 3 and the LED backlight board 4, quickly takes away the heat generated by the LED backlight board 4 when it is working, and finally is discharged from the gap of the slot, forming a complete heat dissipation airflow channel. When the display is powered off, the control motherboard sends a reverse drive signal to the bidirectional motor 701. The bidirectional motor 701 rotates in reverse, driving the rotating shaft 703 and the second lead screw 707 to rotate in reverse. The rotating shaft 703 drives the first lead screw 704 to rotate in reverse through the transmission wheel 705 and the transmission chain 7051, thereby driving the moving block 706 to move along the push groove 107 towards the drive cavity 106. This causes all the baffles 6 to slide in reverse along the inclined groove 102, re-covering the ventilation hole 103. At the same time, the movable block 708 on the second lead screw 707 drives the vertical plate 709 and the push plate 7091 to move in reverse. The end of the push plate 7091 slides in reverse in the guide groove 505 and generates an oblique pulling force, pulling the U-shaped rod 501 to move in reverse along the inclined surface and guide surface of the frame 1 chamber. The U-shaped rod 501 returns to its original position upward, and the spring buffer pad 504 re-fits flexibly with the edge of the backlight film 3. Together with the sealing pad at the top of the frame 1 chamber, it forms an all-round sealing protection for the edge of the quantum dot film.

[0025] The working principle of this invention is as follows: When the display is powered on, the control board in the chamber 101 starts up and sends a drive signal to the bidirectional motor 701 of the push assembly 7 through the wire. The bidirectional motor 701 starts to run and drives the two output ends to move synchronously. One output end drives the inclined rotating shaft 703 to rotate through the universal coupling 702. The transmission wheel 705 on the rotating shaft 703 drives the transmission wheel 705 on the first lead screw 704 to rotate synchronously through the transmission chain 7051, thereby driving the first lead screw 704 to rotate. Since the moving block 706 is threadedly connected to the first lead screw 704 and its two sides slide in contact with the groove wall of the push groove 107, when the first lead screw 704 rotates, it drives the moving block 706 to move along the push groove 107 in a direction away from the drive chamber 106. The top of the moving block 706 drives the bottom baffle 6 to move synchronously. Through the action of the connecting block 601, all the baffles 6 slide along the inclined groove 102 as a whole, gradually exposing the ventilation hole 103. The other output end drives the second lead screw 707 to rotate via a flange. The movable block 708 on the second lead screw 707 moves away from the bidirectional motor 701 under the action of the thread. The movable block 708 drives the vertical plate 709 on the lower surface to slide along the vertical groove of the L-shaped slide groove 105. The push plate 7091 at the bottom of the vertical plate 709 moves synchronously along the horizontal groove of the L-shaped slide groove 105. The end of the push plate 7091 slides in the guide groove 505 and generates an oblique thrust, pushing the U-shaped rod 501 to move along the inclined surface and guide surface of the frame 1 slot chamber. Under the action of the thrust, the U-shaped rod 501 moves as a whole towards the movable gap at the bottom of the slot chamber. The plug block 502 at the top gradually disengages from the plug groove on the top wall of the frame 1 slot chamber. As the U-shaped rod 501 moves downward, the two sides of the U-shaped rod 501 tilt outward from vertical, and its bottom... As the spring buffer pad 504 inside the recess 5011 gradually separates from the edge of the backlight film 3, the air inlet 104, which was originally blocked by the U-shaped rod 501, is fully exposed, realizing the connection between the cavity 101, the ventilation hole 103, the air inlet 104 and the slot. External air enters the cavity 101 through the ventilation hole 103, and after controlling the heat dissipation of the motherboard, it enters the slot of the frame 1 through the air inlet 104. It flows through the gap between the liquid crystal panel 2, the backlight film 3 and the LED backlight board 4, quickly carrying away the heat generated by the LED backlight board 4 during operation, and finally exits from the gap of the slot, forming a complete heat dissipation airflow channel. This quickly carries away the heat generated by the LED backlight and the control chip, ensuring that the quantum dot film works in a suitable temperature environment and avoiding the degradation of display performance caused by the decrease in thermal stability. When the monitor is powered off, the control board sends a reverse drive signal to the bidirectional motor 701, causing the bidirectional motor 701 to rotate in reverse, driving the rotating shaft 703 and the second lead screw 707 to rotate in reverse. The rotating shaft 703 drives the first lead screw 704 to rotate in reverse through the transmission wheel 705 and the transmission chain 7051, thereby driving the moving block 706 to move along the push groove 107 towards the drive cavity 106, causing all the baffles 6 to slide in the opposite direction along the inclined groove 102, and re-covering the ventilation hole 103; at the same time, the movable block 708 on the second lead screw 707 drives the vertical Plate 709 and push plate 7091 move in opposite directions. The end of push plate 7091 slides in the opposite direction in the guide groove 505 and generates a diagonal pulling force, which pulls U-shaped rod 501 to move in the opposite direction along the inclined surface and guide surface of the frame 1 slot. U-shaped rod 501 is reset upward as a whole, and spring buffer pad 504 is flexibly attached to the edge of backlight film 3 again. Together with the sealing pad at the top of the frame 1 slot, it forms an all-round sealing protection for the edge of quantum dot film, effectively blocking external oxygen and moisture, protecting the stability of quantum dot film performance in backlight film 3, and extending the service life of the display.

[0026] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the invention and are not intended to limit it. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the invention, but such modifications, substitutions, and variations are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An LED display with quantum film, comprising a frame (1), a liquid crystal panel (2), a backlight film (3) and an LED background light source plate (4) are sequentially installed in the groove chamber of the front of the frame (1), the backlight film (3) is located between the liquid crystal panel (2) and the LED background light source plate (4), characterized in that, The inner wall of the frame (1) is movably provided with an elastic heat dissipation component (5), which is located at the edge of the backlight film (3). The frame (1) has a cavity (101) for mounting the control chip inside. The back of the frame (1) is provided with inclined grooves (102) at the middle of the corners on both sides. Several ventilation holes (103) communicating with the cavity (101) are provided on the two inclined grooves (102). The inner wall of the several ventilation holes (103) is provided with air inlets (104) communicating with the groove. 03) Each of the locations is provided with a cover plate (6), and several of the plates (6) are connected together by a connecting block (601) to form a whole. Both sides of the bottom of the chamber (101) are provided with a pushing component (7). The pushing component (7) is used to push the plate (6) to move and expose the ventilation hole (103) when the display is turned on. The pushing component (7) also drives the elastic heat dissipation component (5) to move synchronously. There is a gap between the elastic heat dissipation component (5) and the backlight film (3) to facilitate the exposure of the air inlet hole (104) in the chamber for effective heat dissipation inside the display. The elastic heat dissipation component (5) includes a U-shaped rod (501). The two side walls of the slot of the frame (1) are both outwardly sloping and the top corner is provided with an inwardly guiding surface. The U-shaped rod (501) is movably arranged in the slot. The two sides of the U-shaped rod (501) are both inclined outward and in contact with the two side walls of the slot. The inner wall of the U-shaped rod (501) is provided with a groove (5011). The two side walls of the groove (5011) are provided with slots (503). Spring buffer pads (504) are glued in both slots (503). There is an movable gap between the bottom of the slot of the frame (1) and the U-shaped rod (501). The backlight film (3) includes a quantum dot film. When the display stops, the control motherboard controls the push component to reset, the baffle covers the ventilation hole again, the elastic heat dissipation component resets upward, and its spring buffer pad is flexibly attached to the edge of the backlight film.

2. The LED display with a quantum film according to claim 1, characterized in that, The inner walls of the two spring buffer pads (504) extend beyond the groove width of the slot (503) to form a pre-compression margin. The sides and bottom of the backlight film (3) are located in the groove (5011) of the U-shaped rod (501). The inner walls of the two spring buffer pads (504) are in flexible contact with the edge of the backlight film (3).

3. An LED display with a quantum film according to claim 1, characterized in that, The top corner of the U-shaped rod (501) is set as an arc surface that matches the guide surface. Both sides of the top of the U-shaped rod (501) are integrally provided with plug-in blocks (502). Both sides of the top wall of the slot chamber of the frame (1) are provided with plug-in slots that match the plug-in blocks (502). The bottom side of the outer wall of the U-shaped rod (501) is symmetrically provided with inclined guide slots (505).

4. An LED display with a quantum film according to claim 1, characterized in that, Each of the aforementioned push components (7) includes a bidirectional motor (701), the mounting base of which is fixed to the cavity wall of the chamber (101) by screws. The interior of the frame (1) has drive chambers (106) on both sides of the cavity (101). One output end of the bidirectional motor (701) is connected to an obliquely arranged rotating shaft (703) through a universal coupling (702). One end of the rotating shaft (703) is rotatably connected to the cavity wall of the drive chamber (106). A first lead screw (704) is rotatably installed on the side of the drive chamber (106) away from the rotating shaft (703). The first lead screw (704) is parallel to the rotating shaft (703), and a transmission wheel (705) is fixedly sleeved on both the first lead screw (704) and the rotating shaft (703). The two transmission wheels (705) are connected by a transmission chain (7051).

5. An LED display with a quantum film according to claim 4, characterized in that, Both inclined grooves (102) have a push groove (107) at their bottom. The other end of the first lead screw (704) extends through the drive cavity (106) into the push groove (107) and is rotatably connected to the groove wall. A moving block (706) is fitted on the threaded end of the first lead screw (704) located in the push groove (107). The outer walls on both sides of the moving block (706) are in sliding contact with the groove wall of the push groove (107). The top of the moving block (706) extends through the push groove (107) and is screwed to the bottommost baffle (6).

6. An LED display with a quantum film according to claim 4, characterized in that, The other output end of the bidirectional motor (701) is connected to a second lead screw (707) via a flange. A movable block (708) is sleeved on the second lead screw (707). An L-shaped groove (105) is opened on the bottom wall of the drive cavity (106) below the second lead screw (707). The L-shaped groove (105) is connected to the bottom of the slot chamber of the frame (1). A vertical plate (709) is fixed on the lower surface of the movable block (708). The vertical plate (709) is located in the vertical groove of the L-shaped groove (105) and is in sliding contact. An inclined push plate (7091) is welded to the bottom of the outer wall of the vertical plate (709). The push plate (7091) passes through the horizontal groove of the L-shaped groove (105).

7. An LED display with a quantum film according to claim 6, characterized in that, The drive cavity (106) is provided with a support plate (710) at the end of the second lead screw (707). The end of the second lead screw (707) is rotatably connected to the support plate (710). The end of the push plate (7091) is slidably connected to the guide groove (505) of the U-shaped rod (501) in the elastic heat dissipation assembly (5).

8. An LED display with a quantum film according to claim 1, characterized in that, A sealing gasket is embedded in the top of the slot of the frame (1), and the top of the backlight film (3) is in close contact with the sealing gasket.

9. An LED display with a quantum film according to claim 1, characterized in that, The backlight film (3) is composed of a light diffuser, a quantum dot film, a brightness enhancement film and a blue light refraction film.

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