Light guide plate capable of uniformly emitting light

Abstract

The invention discloses a light guide plate capable of uniformly emitting light, relates to the technical field of light guide plates, and aims to solve the problem that an existing light guide plate is non-uniform in light emitting, the light guide plate comprises a light guide plate body, a plurality of net points distributed at equal intervals are arranged on the light guide plate body, the net points are distributed from sparse to dense, and a fixing frame is arranged above the net points. The inner wall of the fixing frame is fixedly connected with the outside of the light guide plate body, an LED light source is arranged on the inner wall of the top of the fixing frame, and two symmetrical side frames are arranged on the two sides of the light guide plate body. The light guide plate capable of emitting light uniformly has the advantages that light which is not utilized by the lattice points and escapes from the light guide plate body can be reflected again in a light scattering and refracting mode, so that the brightness of the edge and the tail end of the light guide plate body is improved, the lattice points are arranged from sparse to dense, and the brightness of the edge and the tail end of the light guide plate body is improved. Light rays are fully distributed to all parts of the light guide plate body, and the light emitting uniformity effect of the light guide plate body is remarkably improved.

Description

Technical Field

[0001] This invention relates to the field of light guide plate technology, and more particularly to a light guide plate with uniform light output. Background Technology

[0002] A light guide plate is an optical component that converts light emitted from a line light source or a point light source into a uniform and soft surface light source through precise optical design. It can transform uneven strong light entering from the side or bottom into uniform light emission across the entire surface. It is most commonly found in LCD displays and is the core component of the backlight module.

[0003] Existing light guide plates typically use a single-sided light source. The brightness is highest near the light-inlet surface of the light guide plate, which is closest to the light source. After the light is scattered step by step by the dots on the light guide plate, the end of the light guide plate furthest from the light source is often the darkest. This greatly affects the uniformity of light output from the light guide plate and has a significant impact on its use. Summary of the Invention

[0004] This invention discloses a light guide plate with uniform light output, aiming to solve the technical problem of uneven light output in existing light guide plates.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A light guide plate with uniform light output includes a light guide plate body. The light guide plate body has multiple equidistantly distributed dots, with the dots ranging from sparse to dense. A fixing frame is positioned above the dots, and the inner wall of the fixing frame is fixedly connected to the outer side of the light guide plate body. An LED light source is positioned on the top inner wall of the fixing frame. The light guide plate body has two symmetrical side frames on both sides, and a bottom frame is positioned at the bottom. The outer side of the bottom frame is fixedly connected to the outer sides of both side frames, and the upper sides of both side frames are fixedly connected to the bottom of the fixing frame. A scattering and refraction module is positioned on the outer side of the light guide plate body. The scattering and refraction module includes multiple equidistantly distributed concave lenses, multiple symmetrical reflectors, and multiple symmetrical reflective sheets. The concave lenses, reflectors, and reflective sheets are all located on the outer side of the light guide plate body. A cleaning module is also positioned on the outer side of the light guide plate body.

[0006] In a preferred embodiment, a fixing frame is slidably connected to the inner wall of the fixing frame. The fixing frame has multiple equidistant concave lenses. Both the fixing frame and the fixing bracket have two symmetrical circular holes, each containing a rotating shaft. One of the rotating shafts has a threaded groove on its exterior. A drive motor is fixedly connected to the upper side of the fixing frame. The output end of the drive motor is connected to the upper side of the rotating shaft on the same side via a coupling. Receiving frames are fixedly connected to the exterior of both side frames. Connecting plates are slidably connected to the interior of each receiving frame. Two symmetrical pressing rods are fixedly connected to the exterior of each connecting plate. Two symmetrical small holes are opened on each side frame. The inner walls of the small holes are slidably connected to the exterior of the pressing rods on the same side. Two symmetrical hydraulic rods are fixedly connected to the exterior of each side frame. The output ends of the hydraulic rods are fixedly connected to the exterior of the connecting plate on the same side. Two symmetrical rotating plates are movably connected to the inner walls of both side frames. An elastic spring is fixedly connected to one side of each rotating plate, and the other end of the elastic spring is fixedly connected to the side plate on the same side. The inner wall of the frame is fixedly connected, and the outer side of the extrusion rod is in contact with the outer side of the rotating plate on the same side. The other end of the rotating plate is fixedly connected to the outer side of the reflector on the same side. The bottom of both side frames is fixedly connected to the brackets, and the same bidirectional lead screw is movably connected to the two brackets. A brightness sensor is set on the two brackets. Multiple symmetrically distributed transmission seats are set on the outer side of the bidirectional lead screw. A slider is slidably connected to the transmission seat. A rotating seat is movably connected to the outer side of the slider. The inner wall of the bottom frame is fixedly connected to the mounting platform 2. A reflector 2 is fixedly connected to the upper side of the mounting platform 2. Two symmetrical brightness sensors 2 are set on the outer side of the mounting platform 2. Multiple symmetrical mounting platforms 1 are set on the outer side of the mounting platform 2. The outer side of the mounting platform 1 is movably connected to the inner wall of the bottom frame. The bottom of the mounting platform 1 is fixedly connected to the outer side of the rotating seat on the same side. A reflector 1 is fixedly connected to the upper side of the mounting platform 1. A rotating motor is fixedly connected to the inner wall of the bottom frame. The output end of the rotating motor is connected to one side of the bidirectional lead screw through a coupling.

[0007] In a preferred embodiment, the cleaning module includes two symmetrical slide rails, each fixedly connected to the opposite side of the side frame on the same side. A common fixing plate is slidably connected within the two slide rails. The fixing plate has two symmetrical circular grooves, each containing a threaded rod and a vertical rod. Both the threaded rod and the vertical rod have externally connected bosses, which are fixedly connected to the outside of the fixing frame. A drive motor is fixedly connected to the outside of the fixing frame, and the output end of the drive motor is connected to the upper side of the threaded rod via a coupling. A scraper and a perforated plate are fixedly connected to the side of the fixing plate closest to the light guide plate. A brush is provided on the outside of the perforated plate. A narrow groove is formed on the fixing plate, and a collecting pipe is fixedly connected within the narrow groove. Multiple equally spaced manifolds are provided on the collecting pipe, with the end of the manifold furthest from the collecting pipe fitting against the perforated plate. Two symmetrical mounting plates are fixedly connected to the upper side of the fixing plate, and each mounting plate has a receiving cylinder fixedly connected to its exterior. Each receiving cylinder contains a storage bottle. A cover plate is movably connected to one side of the container. A spring is fixedly connected to the side of the cover plate closest to the container, and a pressure plate is fixedly connected to the end of the spring away from the cover plate. The outside of the pressure plate fits against the outside of the storage bottle. A fixed shaft is fixedly connected to the outside of each of the two cover plates. A locking frame is slidably connected to the outside of each fixed shaft. Two symmetrical fitting frames are provided on the outside of each locking frame. The fitting frames are fixedly connected to the side opposite to the container. Each fitting frame has an L-shaped groove, and a protrusion is engaged within each L-shaped groove. The protrusion is fixedly connected to the side opposite to the outside of the locking frame on the same side. Sealing plugs are fixedly connected to the inner walls of both containers. A needle is provided on each sealing plug. One end of the needle is fixedly connected to a delivery tube, and the other end of the delivery tube is located inside the storage bottle. The ends of both delivery tubes away from the needles are fixedly connected to the outside of a collecting tube on the same side. Two symmetrical pumps are fixedly connected to the upper side of the fixed plate. The output ends of the pumps are connected to the delivery tube on the same side via conduits.

[0008] As can be seen from the above, the light guide plate with uniform light output provided by the present invention enables the device to reflect light that has not been utilized by the dot matrix again from the light guide plate body by means of scattering and refracting light, thereby improving the brightness of the edges and ends of the light guide plate body. By setting the dot matrix from sparse to dense, the light is fully distributed to all parts of the light guide plate body, which significantly improves the light output uniformity of the light guide plate body. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the overall structure of a light guide plate with uniform light output proposed in this invention. Figure 2 This is a cross-sectional view of a light guide plate with uniform light output proposed in this invention. Figure 3 This is a schematic diagram of a scattering and refraction module structure for a light guide plate with uniform light output proposed in this invention. Figure 4 This is a schematic diagram of the fixing frame structure of a light guide plate with uniform light output proposed in this invention. Figure 5 This is a schematic diagram of the housing frame structure for a light guide plate with uniform light output proposed in this invention. Figure 6 This is a schematic diagram of the bottom frame structure of a light guide plate with uniform light output proposed in this invention. Figure 7 This is a schematic diagram of the cleaning module structure of a light guide plate with uniform light output proposed in this invention. Figure 8 This is a schematic diagram of the fixing plate structure of a light guide plate with uniform light output proposed in this invention.

[0010] In the diagram: 1. Light guide plate body; 2. Dot matrix; 3. Fixing frame; 4. Side frame; 5. Bottom frame; 6. LED light source; 7. Scattering and refraction module; 701. Rotating shaft; 702. Drive motor; 703. Threaded groove; 704. Fixing bracket; 705. Concave lens; 706. Receiving frame; 707. Connecting plate; 708. Extrusion rod; 709. Hydraulic rod; 710. Rotating plate; 711. Reflector; 712. Elastic spring; 713. Bracket; 714. Brightness sensor one; 715. Bidirectional lead screw; 716. Rotating motor; 717. Transmission seat; 718. Rotating seat; 719. Mounting platform one; 720. Reflector one; 7 21. Mounting platform 2; 722. Reflector 2; 723. Brightness sensor 2; 8. Cleaning module; 801. Slide rail; 802. Fixing plate; 803. Threaded rod; 804. Vertical rod; 805. Drive motor; 806. Hollow plate; 807. Scraper; 808. Manifold; 809. Manifold; 810. Mounting plate; 811. Container cylinder; 812. Storage bottle; 813. Delivery pipe; 814. Sealing plug; 815. Needle; 816. Pump; 817. Cover plate; 818. Spring; 819. Pressure plate; 820. Fixing shaft; 821. Locking frame; 822. Fitting frame; 823. L-shaped groove; 824. Brush. Detailed Implementation

[0011] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0012] The light guide plate with uniform light output disclosed in this invention is mainly applied to scenarios where the light output of existing light guide plates is uneven.

[0013] Reference Figures 1-8A light guide plate with uniform light output includes a light guide plate body 1. Multiple equidistantly distributed dots 2 are arranged on the light guide plate body 1, with the dot distribution ranging from sparse to dense. A fixing frame 3 is arranged above the dots 2. The inner wall of the fixing frame 3 is bolted to the outer side of the light guide plate body 1. An LED light source 6 is arranged on the top inner wall of the fixing frame 3. Two symmetrical side frames 4 are arranged on the two sides of the light guide plate body 1. A bottom frame 5 is arranged at the bottom of the light guide plate body 1. The outer side of the bottom frame 5 is bolted to the outer side of both side frames 4. The upper side of both side frames 4 is bolted to the bottom of the fixing frame 3. A scattering and refraction module 7 is arranged on the outer side of the light guide plate body 1. The scattering and refraction module 7 includes multiple equidistantly distributed concave lenses 705, multiple symmetrical reflectors 711, and multiple symmetrical reflectors 720. The concave lenses 705, reflectors 711, and reflectors 720 are all located on the outer side of the light guide plate body 1. A cleaning module 8 is arranged on the outer side of the light guide plate body 1.

[0014] Specifically, the device utilizes the scattering and refraction module 7 to reflect light that has not been utilized by the dot 2 from the light guide plate body 1 again, thereby improving the brightness of the edges and ends of the light guide plate body 1. By setting the dot density from sparse to dense, the light is fully distributed to all parts of the light guide plate body 1, significantly improving the uniformity of light output of the light guide plate body 1.

[0015] Reference Figure 3 , Figure 4 , Figure 5 and Figure 6In a preferred embodiment, a fixing frame 704 is slidably connected to the inner wall of the fixing frame 3. Multiple concave lenses 705 are equidistantly distributed on the fixing frame 704. Both the fixing frame 704 and the fixing frame 3 have two symmetrical circular holes, each containing a rotating shaft 701. One of the rotating shafts 701 has a threaded groove 703 on its exterior. A drive motor 702 is bolted to the upper side of the fixing frame 3. The output end of the drive motor 702 is connected to the upper side of the rotating shaft 701 on the same side via a coupling. Both side frames 4 are bolted to the exterior of receiving frames 706. Connecting plates 70 are slidably connected within each of the two receiving frames 706. 7. The outer surface of the connecting plate 707 is bolted with two symmetrical extrusion rods 708. Two symmetrical small holes are opened on each of the two side frames 4. The inner walls of the small holes are slidably connected to the outer surface of the extrusion rods 708 on the same side. Two symmetrical hydraulic rods 709 are bolted to the outer surface of each side frame 4. The output ends of the hydraulic rods 709 are bolted to the outer surface of the connecting plate 707 on the same side. Two symmetrical rotating plates 710 are rotatably connected to the inner walls of each of the two side frames 4 via bearings. One side of each rotating plate 710 is bolted with an elastic spring 712. The other end of each elastic spring 712 is bolted to the inner wall of the side frame 4 on the same side. The outer surfaces of the extrusion rods 708 are in contact with the outer surfaces of the rotating plates 710 on the same side. The other ends of the rotating plates 710 are bolted to the outer surfaces of the reflectors 711 on the same side. The bottoms of the two side frames 4 are bolted to brackets 713. The same bidirectional lead screw 715 is rotatably connected to the two brackets 713 via bearings. A brightness sensor 714 is installed on each of the two brackets 713. Multiple symmetrically distributed transmission seats 717 are provided on the outer surface of the bidirectional lead screw 715. A slider is slidably connected to each transmission seat 717. A rotating seat 718 is rotatably connected to the outer surface of each slider via bearings. The inner wall of the bottom frame 5 is bolted to a mounting platform 721. A reflector 722 is bolted to the upper side of mounting platform 721. Two symmetrical brightness sensors 723 are installed on the outside of mounting platform 721. Multiple symmetrical mounting platforms 719 are installed on the outside of mounting platform 721. The outside of each mounting platform 719 is rotatably connected to the inner wall of the base frame 5 via bearings. The bottom of each mounting platform 719 is bolted to the outside of the rotating seat 718 on the same side. A reflector 720 is bolted to the upper side of each mounting platform 719. A rotating motor 716 is bolted to the inner wall of the base frame 5. The output end of the rotating motor 716 is connected to one side of the bidirectional lead screw 715 via a coupling.

[0016] In specific application scenarios, the scattering and refraction module 7 is mainly used for controlling the light scattering and refraction process. This module adjusts the distance between the concave lens 705 and the LED light source 6 through the rotating shaft 701, the threaded groove 703, and the concave lens 705, so as to achieve sufficient scattering of the light emitted by the LED and avoid uneven light output caused by excessive concentration of the light source. Through the cooperation of the squeezing rod 708, the rotating plate 710, and the spring 712, the light scattering at the edge of the light guide plate body 1 can be refracted and recovered. At the same time, with the help of reflector 1 720, reflector 2 722, brightness sensor 1 714, and brightness sensor 2 723, the light at the bottom of the light guide plate is refracted and compensated to achieve supplementary lighting at the bottom, ensuring that the dots 2 can fully scatter the light and improve the light utilization efficiency.

[0017] Reference Figure 7 and Figure 8In a preferred embodiment, the cleaning module 8 includes two symmetrical slide rails 801. Each slide rail 801 is bolted to the opposite side of the side frame 4 on the same side. A common fixing plate 802 is slidably connected within the two slide rails 801. The fixing plate 802 has two symmetrical circular grooves, each containing a threaded rod 803 and a vertical rod 804. Both the threaded rod 803 and the vertical rod 804 have bosses rotatably connected to their exteriors via bearings. The exteriors of these bosses are bolted to the exterior of the fixing frame 3. A drive motor 805 is bolted to the exterior of the fixing frame 3. The output end of the drive motor 805 is connected to the threaded rod 803 via a coupling. The upper side is connected to a scraper 807 and a perforated plate 806 by bolts to the side of the fixing plate 802 near the light guide plate body 1. A brush 824 is provided on the outside of the perforated plate 806. A narrow groove is opened on the fixing plate 802, and a collecting pipe 808 is connected to the narrow groove by bolts. Multiple manifolds 809 are provided on the collecting pipe 808. The end of the manifold 809 away from the collecting pipe 808 is attached to the perforated plate 806. Two symmetrical mounting plates 810 are bolted to the upper side of the fixing plate 802. A receiving cylinder 811 is bolted to the outside of each mounting plate 810. A storage bottle 812 is provided inside each receiving cylinder 811. A cover plate 817 is rotatably connected to the side of the container 811 via bearings. A spring 818 is bolted to the side of the cover plate 817 closest to the container 811. A pressure plate 819 is bolted to the end of the spring 818 furthest from the cover plate 817. The exterior of the pressure plate 819 fits against the exterior of the storage bottle 812. A fixed shaft 820 is bolted to the exterior of each cover plate 817. A locking frame 821 is slidably connected to the exterior of each fixed shaft 820. Two symmetrical fitting frames 822 are provided on the exterior of each locking frame 821. The side of each fitting frame 822 opposite to the container 811 is bolted to the side of each fitting frame 822. Each fitting frame 822 has an L-shaped groove 823. Both are fitted with protruding rafters, and the protruding rafters are bolted to the opposite side of the locking frame 821 on the same side. The inner walls of the two receiving cylinders 811 are bolted with sealing plugs 814, and each sealing plug 814 is provided with a needle 815. One end of the needle 815 is bolted to a delivery tube 813, and the other end of the delivery tube 813 is located inside the storage bottle 812. The ends of the two delivery tubes 813 away from the needles 815 are bolted to the outside of the collecting tube 808 on the same side. The upper side of the fixing plate 802 is bolted with two symmetrical pumps 816, and the output ends of the pumps 816 are connected to the delivery tubes 813 on the same side through conduits.

[0018] In specific application scenarios, the cleaning module 8 is mainly used in the cleaning process. Specifically, the cleaning module 8 uses the manifold 808, brush 824, and scraper 807 to effectively clean the stains attached to the surface of the light guide plate body 1, ensuring the smoothness of the light guide plate body 1, preventing the stains from blocking the light guide plate body 1, ensuring the uniformity of the overall light emission of the light guide plate body 1, and improving the user experience. The needle 815, cover plate 817, locking frame 821, and fitting frame 822 enable the device to quickly replace the cleaning agent. While ensuring a continuous supply of cleaning agent, it speeds up the replacement speed of the storage bottle 812, reduces the downtime of the device, and ensures that the function of the light guide plate body 1 is not affected.

[0019] Working Principle: The LED light source 6 is activated, emitting light that projects onto the light guide plate body 1. The drive motor 702 is activated, causing the rotating shaft 701 to rotate, allowing the concave lens 705 to change its distance from the LED light source 6, thus dispersing the light. The dot matrix 2 scatters the passing light outwards. After the light passes through the entire light guide plate body 1, brightness sensors 714 and 723 detect the brightness. When uneven brightness distribution is detected, the rotating motor 716 is activated, driving the bidirectional lead screw 715 to rotate, causing the transmission seat 717 to rotate the mounting platform 719, changing the angle of the reflector 720 on the bottom frame 5. This refracts the light from the bottom of the light guide plate body 1 back onto the light guide plate body 1. The hydraulic rod 709 is activated, causing the connecting plate 707 to slide along the receiving frame 706, causing the pressing rod 708 to push the rotating plate 710 to rotate at a certain angle against the elastic spring 712. This refraction further refracts the refracted light, allowing the dots 2 on the light guide plate body 1 to fully scatter the light. After prolonged use, dust accumulates on the surface of the light guide plate body 1. The drive motor 805 is activated, causing the threaded rod 803 to move the fixing plate 802 downwards. The pump 816 is then activated, drawing the cleaning agent from the storage bottle 812 and delivering it through the delivery pipe 813 into the manifold 808. This allows the manifold 809 to drip the cleaning agent into the brush 824, thus cleaning... The detergent dissolves the stains, the brush 824 brushes the stains off the surface of the light guide plate body 1, and the scraper 807 scrapes off the remaining stains and cleaning agent from the light guide plate body 1. After the cleaning agent in the storage bottle 812 is exhausted, the locking bracket 821 is rotated to pull the protruding rafter out of the L-shaped groove 823, the cover plate 817 is opened, the empty storage bottle 812 is taken out, the full storage bottle 812 is reinserted, the needle 815 is inserted into the storage bottle 812, the cover plate 817 is closed, and the locking bracket 821 is locked again.

[0020] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A light guide plate with uniform light output, comprising a light guide plate body (1), characterized in that, The light guide plate body (1) is provided with a plurality of equally spaced dots (2), the dot distribution (2) is from sparse to dense, a fixed frame (3) is provided above the dots (2), the inner wall of the fixed frame (3) is fixedly connected to the outside of the light guide plate body (1), an LED light source (6) is provided on the top inner wall of the fixed frame (3), and two symmetrical side frames (4) are provided on the two sides of the light guide plate body (1), and a bottom frame (5) is provided at the bottom of the light guide plate body (1), the outside of the bottom frame (5) is fixed to the outside of the two side frames (4). The upper sides of the two side frames (4) are fixedly connected to the bottom of the fixed frame (3). A scattering and refraction module (7) is provided on the outside of the light guide plate body (1). The scattering and refraction module (7) includes multiple concave lenses (705) distributed at equal intervals, multiple symmetrical reflectors (711), and multiple symmetrical reflectors (720). The concave lenses (705), reflectors (711) and reflectors (720) are all located on the outside of the light guide plate body (1), and a cleaning module (8) is provided on the outside of the light guide plate body (1).

2. The light guide plate with uniform light output according to claim 1, characterized in that, The inner wall of the fixed frame (3) is slidably connected to a fixed bracket (704). The fixed bracket (704) is provided with a plurality of concave lenses (705) distributed at equal intervals. The fixed bracket (704) and the fixed frame (3) are each provided with two symmetrical circular holes. The circular holes are each provided with a rotating shaft (701). One of the rotating shafts (701) is provided with a threaded groove (703) on the outside. The upper side of the fixed frame (3) is fixedly connected to a drive motor (702). The output end of the drive motor (702) is connected to the upper side of the rotating shaft (701) on the same side through a coupling. The two side frames (4) are both fixedly connected to a receiving frame (706).

3. A light guide plate with uniform light output according to claim 2, characterized in that, Both of the two receiving frames (706) are slidably connected to a connecting plate (707). Two symmetrical extrusion rods (708) are fixedly connected to the outside of the connecting plate (707). Two symmetrical fine holes are opened on both side frames (4). The inner walls of the fine holes are slidably connected to the outside of the extrusion rods (708) on the same side. Two symmetrical hydraulic rods (709) are fixedly connected to the outside of the side frames (4). The output ends of the hydraulic rods (709) are fixedly connected to the outside of the connecting plate (707) on the same side.

4. A light guide plate with uniform light output according to claim 3, characterized in that, Two symmetrical rotating plates (710) are movably connected to the inner walls of the two side frames (4). One side of each rotating plate (710) is fixedly connected to an elastic spring (712). The other end of each elastic spring (712) is fixedly connected to the inner wall of the side frame (4) on the same side. The outside of each pressing rod (708) is in contact with the outside of the rotating plate (710) on the same side. The other end of each rotating plate (710) is fixedly connected to the outside of the reflector (711) on the same side. The bottom of each side frame (4) is fixedly connected to a bracket (713). The same bidirectional lead screw (715) is movably connected to each of the two brackets (713). A brightness sensor (714) is provided on each of the two brackets (713).

5. A light guide plate with uniform light output according to claim 4, characterized in that, The bidirectional lead screw (715) has multiple symmetrically distributed transmission seats (717) on its exterior. Each transmission seat (717) has a slider slidably connected to it. Each slider has a rotating seat (718) movably connected to its exterior. The inner wall of the bottom frame (5) is fixedly connected to a second mounting platform (721). A second reflector (722) is fixedly connected to the upper side of the second mounting platform (721). Two symmetrical brightness sensors (723) are arranged on the exterior of the second mounting platform (721). Multiple symmetrical mounting platforms (719) are provided on the outside. The outside of each mounting platform (719) is movably connected to the inner wall of the bottom frame (5). The bottom of each mounting platform (719) is fixedly connected to the outside of the rotating seat (718) on the same side. A reflector (720) is fixedly connected to the upper side of each mounting platform (719). A rotating motor (716) is fixedly connected to the inner wall of the bottom frame (5). The output end of the rotating motor (716) is connected to one side of the double-acting screw (715) through a coupling.

6. A light guide plate with uniform light output according to claim 1, characterized in that, The cleaning module (8) includes two symmetrical slide rails (801). The slide rails (801) are fixedly connected to the opposite side of the side frame (4) on the same side. The same fixed plate (802) is slidably connected in the two slide rails (801). Two symmetrical circular grooves are opened on the fixed plate (802). Threaded rods (803) and vertical rods (804) are respectively provided in the circular grooves. Threaded rods (803) and vertical rods (804) are movably connected to the outside of both the threaded rods (803) and the vertical rods (804). The outside of the threaded rods (803) and the vertical rods (804) are fixedly connected to the outside of the fixed frame (3). A drive motor (805) is fixedly connected to the outside of the fixed frame (3). The output end of the drive motor (805) is connected to the upper side of the threaded rod (803) through a coupling.

7. A light guide plate with uniform light output according to claim 6, characterized in that, The fixing plate (802) is fixedly connected to a scraper (807) and a perforated plate (806) on the side near the light guide plate body (1). A brush (824) is provided on the outside of the perforated plate (806). A narrow groove is opened on the fixing plate (802), and a collecting pipe (808) is fixedly connected in the narrow groove. Multiple manifolds (809) are provided on the collecting pipe (808). The end of the manifold (809) away from the collecting pipe (808) is attached to the perforated plate (806). Two... A symmetrical mounting plate (810) is provided. A receiving cylinder (811) is fixedly connected to the outside of the mounting plate (810). A storage bottle (812) is provided inside the receiving cylinder (811). A cover plate (817) is movably connected to one side of the receiving cylinder (811). A spring (818) is fixedly connected to the side of the cover plate (817) near the receiving cylinder (811). A pressure plate (819) is fixedly connected to the end of the spring (818) away from the cover plate (817). The outside of the pressure plate (819) is in contact with the outside of the storage bottle (812).

8. A light guide plate with uniform light output according to claim 7, characterized in that, Both of the cover plates (817) are fixedly connected to the outside of a fixed shaft (820), and a locking frame (821) is slidably connected to the outside of the fixed shaft (820). The locking frame (821) is provided with two symmetrical fitting frames (822) on the outside. The fitting frame (822) is fixedly connected to the side opposite to the receiving cylinder (811). The fitting frame (822) is provided with an L-shaped groove (823). A protruding rafter is engaged in the L-shaped groove (823), and the protruding rafter is fixedly connected to the side opposite to the outside of the locking frame (821) on the same side.

9. A light guide plate with uniform light output according to claim 8, characterized in that, The inner walls of the two containers (811) are fixedly connected with sealing plugs (814), and each sealing plug (814) is provided with a needle (815). One end of the needle (815) is fixedly connected to a delivery tube (813), and the other end of the delivery tube (813) is located inside the storage bottle (812).

10. A light guide plate with uniform light output according to claim 9, characterized in that, The ends of the two delivery tubes (813) away from the needle (815) are fixedly connected to the outside of the manifold (808) on the same side, and two symmetrical pumps (816) are fixedly connected to the upper side of the fixing plate (802). The output ends of the pumps (816) are connected to the delivery tubes (813) on the same side through conduits.

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