Light guide plate, light guide plate assembly and display device

Abstract

The invention relates to the technical field of display devices, and particularly discloses a light guide plate, a light guide plate assembly and a display device.The light guide plate comprises a light guide plate body, the light guide plate body is composed of a base material layer, a reflecting layer, a lattice point layer and a diffusion layer, and the reflecting layer is fixedly connected to one side of the base material layer. The first reflecting surface and the second reflecting surface in the reflecting groove can jointly reflect a light source, the reflecting parts are distributed at equal intervals, the light source can be diffused through common reflection, the situation that light rays directly irradiate human eyes after being emitted out of the reflecting surfaces of the light guide plate and hurt the human eyes is avoided, meanwhile, the light guide plate adopts an outer protective layer, and different functional layers can be selected according to requirements. The light guide plate is provided with a dustproof layer, an oil-resistant layer, a scratch-resistant and wear-resistant layer, an anti-static layer and the like to meet application requirements of various occasions, the ultraviolet-proof layer is further arranged to improve the use performance, the functionality and applicability of the light guide plate can be effectively improved through the design, and a better optical effect and a better protection effect are provided for different use environments.

Description

Technical Field

[0001] The present invention relates to the technical field of display devices, and in particular to a light guide plate, a light guide plate assembly and a display device. Background Art

[0002] The light guide plate assembly display device is a device that uses light guide plate technology to achieve display functions. It is mainly composed of a light source, a light guide plate and other related components. The light guide plate is the core component of the device. It is usually based on optical grade acrylic or other transparent materials. Its surface is covered with special microstructures, such as dots, concave structures, etc. These microstructures can cleverly control the propagation direction of light. After the light emitted by the light source enters the light guide plate, it propagates inside the light guide plate through optical principles such as total reflection. With the help of these microstructures, the light is evenly emitted from the front of the light guide plate. The light guide plate assembly may also include components such as a reflective layer and a diffusion layer. The reflective layer is used to reflect the light leaking from the bottom or side of the light guide plate back to the light guide plate to improve the utilization efficiency of light. The diffusion layer further diffuses and homogenizes the light emitted from the light guide plate to make the display effect softer and more uniform. This display device is widely used in liquid crystal display, automotive or indoor lighting, medical and health fields, such as tablet computers, laptops, desktop monitors, industrial control monitors, car monitors and other devices. There are light guide plate assembly display devices;

[0003] The Chinese patent with the announcement number "CN112782800B" discloses a light guide plate assembly and a display device, wherein the main body of the light guide plate is provided with a reflective surface, a light emitting surface and a light incident surface. After the light enters through the light incident surface, it is totally reflected. The reflective scattering surface of the internal reflective part and the semi-transparent and semi-reflective film layer above can make more light emitted from the light emitting surface, which can reduce the damage to human eyes caused by the supplementary light source when the ambient light is insufficient and improve the light utilization rate;

[0004] The Chinese patent with the announcement number "CN217932159U" discloses a PS light guide plate for liquid crystal display screens, which includes a light guide plate, a side mounting seat and an upper mounting seat. The mounting seat is stabilized by connecting components. Since the light source is emitted from four corners and is located at the four corners of the light guide plate, the problem of insufficient brightness of the corner light guide points can be avoided, and the uniform dispersion of light and the light guide plate have good light emission consistency.

[0005] The structure of the reflector in the above device is relatively simple and has obvious limitations. It can only reflect in a specific direction. In actual application, the overall reflection ability is poor. In this case, it still fails to effectively solve the problem raised in the background technology, that is, the light emitted by the supplementary light source will naturally propagate in two directions after being totally reflected in the light guide plate, which causes a certain amount of light to be emitted from the reflective surface of the light guide plate and directly enter the human eye, thereby causing damage to the human eye.

[0006] At the same time, in combination with the actual application process of the existing technology, the existing light guide plates and light source plates are mostly installed inside the display device by screws. When the display device needs to be inspected and maintained, the screws must be removed one by one using special tools before the light source plate and the light guide plate can be removed. Obviously, this installation method has certain defects and shortcomings during use. In view of this, it is necessary to improve it to enhance its performance and ease of use. Summary of the invention

[0007] The object of the present invention is to provide a light guide plate, a light guide plate assembly and a display device to solve the problem of inconvenient maintenance during application of the prior art mentioned in the above background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides a light guide plate, a light guide plate assembly and a display device, including a light guide plate body, wherein the light guide plate body is composed of a substrate layer, a reflective layer, a mesh layer and a diffusion layer, the reflective layer is fixedly connected to one side of the substrate layer, the side of the reflective layer away from the substrate layer is fixedly connected to the mesh layer, the side of the mesh layer away from the reflective layer is fixedly connected to the diffusion layer, and reflective parts are arranged at equal intervals on one side of the light guide plate body.

[0009] Furthermore, the reflecting portion includes a reflecting groove, which is opened on one side of the light guide plate body, with first reflecting surfaces opened on both sides of the reflecting groove and second reflecting surfaces opened on the other two sides of the reflecting groove, and the first reflecting surface and the second reflecting surface are vertically arranged.

[0010] Furthermore, the substrate layer is made of polycarbonate, the dot layer is made of photoresist, the reflective layer is made of a silver-plated film, and the outer surface of the light guide plate body is also fixedly connected to an anti-ultraviolet layer, and the anti-ultraviolet layer is configured as a thin film layer to prevent external rays.

[0011] A light guide plate assembly comprises an outer protective layer, wherein the outer protective layer is arranged on the outer surface of the light guide plate body.

[0012] Furthermore, the outer protective layer can be set as a dustproof layer, an oil-proof layer, an anti-adhesion layer, an anti-scratch and wear-resistant layer or an anti-static layer according to application requirements. The dustproof layer can be composed of a nano-silicon dioxide coating, the oil-proof layer can be composed of a fluorocarbon coating, the anti-adhesion layer can be composed of polyamide wax, the anti-scratch and wear-resistant layer can be composed of a hard aluminum oxide coating, and the anti-static layer can be composed of a metal oxide conductive material.

[0013] A light guide plate display device comprises an outer frame, wherein four inner corners of the outer frame are provided with inner grooves, the inner grooves are slidably connected with mounting blocks, the inner side of the mounting blocks is fixedly mounted with an inner frame, two mounting grooves are provided at both front and rear ends of the inner frame, one end of the mounting groove is provided with an opening and the mounting groove passes through the outer frame through the opening, sliding grooves are provided at both upper and lower ends of the two mounting grooves, the inner side of the sliding grooves is slidably connected with mounting mechanisms, the mounting mechanisms are movably mounted in the mounting grooves through the sliding grooves, a mounting groove located on the front side of the two mounting grooves is mounted with a light source board through the mounting mechanism, the light guide plate body is mounted on the inner side of the mounting groove located on the rear side of the two mounting grooves through the mounting mechanism, a limiting mechanism is provided at the upper end of the back side of the outer frame, and the limiting mechanism is used to limit the inner frame.

[0014] Furthermore, the limiting mechanism includes a movable groove and a limiting groove, the movable groove is opened at the upper end of the back side of the outer frame, the inner ends of the movable groove are fixedly connected to the limiting springs, the outer end of the limiting spring is fixedly connected to the movable block, the outer end of the movable block is fixedly connected to the limiting block, the limiting groove is opened on the inner side of the mounting block, the end of the limiting block is inserted into the inner side of the limiting groove, and a linkage component is provided on the outer side of the movable block.

[0015] Furthermore, the linkage assembly includes an articulated wheel and a pull ring, both sides of the pull ring are fixedly connected with hinges, the articulated wheel is rotatably connected to the front side of the movable block, the pull ring is hinged with a connecting rod through the hinges on both sides, and the outer end of the connecting rod is fixedly connected to the inner side of the articulated wheel.

[0016] Furthermore, the installation mechanism includes a slide bar, which is slidably connected to the inner side of the slide groove, and a storage frame is fixedly installed between the inner sides of the slide bar, and the storage frame is slidably connected to the inside of the installation groove. A limiting component is provided at one end of the storage frame near the opening of the installation groove.

[0017] Furthermore, the limiting assembly includes a strip groove and a card slot, the strip groove is opened on a side of the storage frame close to the opening of the installation groove, both ends of the interior of the strip groove are fixedly connected with telescopic springs, the outer end of the telescopic spring is fixedly connected with a slider, the slider is slidably connected to the two ends of the interior of the strip groove, the outer side of the slider passes through the strip groove and is fixedly connected with a card plate, the card slots are respectively opened on the upper and lower sides of one end of the light guide plate body and the light source plate close to the opening of the installation groove, the end of the card plate is inserted into the interior of the card slot, and the outer side of the slider is fixedly connected with a toggle piece.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] First, in the present invention, a reflective portion is provided on the light guide plate body, and the first reflective surface and the second reflective surface in the reflective groove can reflect the light source together, and the reflective portions are evenly spaced, and can diffuse the light source by common reflection, so as to prevent the light from being directly projected from the reflective surface of the light guide plate to cause damage to the human eye. At the same time, the light guide plate adopts an outer protective layer, and different functional layers can be selected according to requirements, such as a dustproof layer, an anti-oil layer, an anti-scratch and wear-resistant layer, an anti-static layer, etc., to meet the application requirements of various occasions. An anti-ultraviolet layer is also provided to improve the use performance. Such a design can effectively improve the functionality and applicability of the light guide plate, and provide better optical effects and protection for different use environments;

[0020] Secondly, in the present invention, a mounting mechanism is provided. When in use, the toggle member is pushed to drive the slider to move outward, so that the telescopic spring is stretched and the card plate is moved outward accordingly. At this time, the light source board and the light guide plate body can be placed in the inner groove of the storage frame, and the toggle member is released. The telescopic spring is reset to drive the slider to move inward, and the card plate is inserted into the card slot to achieve limiting. The light source board and the light guide plate body are stably installed in the storage frame, and then the storage frame is inserted into the installation slot, the slide bar is inserted into the slide slot, and the installation block is inserted into the inner slot. The installation is completed by the limiting mechanism with auxiliary limiting. If disassembly is required, the limiting mechanism is adjusted to remove the installation block, the inner frame is taken out, the slide bar is pulled out to take out the storage frame, and the toggle member is adjusted again to make the card block disengage from the card slot, and the light source board or the light guide plate body can be removed, which is convenient and quick for maintenance.

[0021] Thirdly, in the present invention, when the limiting mechanism of the present invention is in use, when the mounting block is to be inserted into the inner groove, pulling the pull ring can drive the hinge, the connecting rod and the articulated wheel to rotate in linkage, and then pulling the movable block to contract the limiting spring, and the limiting block is separated from the limiting groove. At this time, the inner frame can be inserted into the outer frame. After the inner frame is installed, the pull ring is released, the limiting spring is reset to push the movable block to move outward, and the limiting block is inserted into the limiting groove to assist in clamping the mounting block. The inner frame and the storage frame are installed in the outer frame. When disassembly is required, pulling the pull ring drives the various components to be linked, so that the movable block squeezes the limiting spring to move inward, and the limiting block leaves the limiting groove. The inner frame can be quickly disassembled and assembled, which is convenient for disassembly and maintenance of the light source panel and the light guide plate body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a rear view structure schematic diagram of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the inner frame in the present invention in a separated state;

[0025] Figure 4 It is a schematic diagram of the structure of the installation mechanism and the inner frame in the present invention in a separated state;

[0026] Figure 5It is a structural schematic diagram of the installation mechanism in the present invention in a separated state;

[0027] Figure 6 It is a schematic diagram of the structure of the limiting mechanism in the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the light guide plate body in the present invention;

[0029] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure at point A;

[0030] Fig. 9 It is a schematic diagram of the overall cross-sectional structure of the light source panel in the present invention.

[0031] In the figure: 1, light guide plate body; 2, substrate layer; 3, reflection layer; 4, dot layer; 5, diffusion layer; 6, reflection part; 61, reflection groove; 62, first reflection surface; 63, second reflection surface; 7, outer protection layer; 8, inner groove; 9, mounting block; 10, inner frame; 11, mounting groove; 12, slide groove; 13, mounting mechanism; 131, slide bar; 132, storage frame; 133, limit assembly; 1331, strip groove; 1332, card slot; 1333, telescopic spring; 1334, slider; 1335, card plate; 1336, toggle member; 14, light source board; 15, limiting mechanism; 151, movable slot; 152, limiting spring; 153, movable block; 154, limiting block; 155, limiting slot; 156, linkage assembly; 1561, articulated wheel; 1562, pull ring; 1563, hinge; 1564, connecting rod; 16, UV protection layer; 17, outer frame. DETAILED DESCRIPTION

[0032] See also Figure 1-Figure 9 In an embodiment of the present invention, a light guide plate, a light guide plate assembly and a display device include a light guide plate body 1, the light guide plate body 1 is composed of a substrate layer 2, a reflection layer 3, a grid layer 4 and a diffusion layer 5, the reflection layer 3 is fixedly connected to one side of the substrate layer 2, the side of the reflection layer 3 away from the substrate layer 2 is fixedly connected to the grid layer 4, the side of the grid layer 4 away from the reflection layer 3 is fixedly connected to the diffusion layer 5, and one side of the light guide plate body 1 is provided with reflection parts 6 at equal intervals.

[0033] The reflecting part 6 includes a reflecting groove 61, which is provided on one side of the light guide plate body 1. A first reflecting surface 62 is provided on both sides of the reflecting groove 61, and a second reflecting surface 63 is provided on the other two sides of the reflecting groove 61. The first reflecting surface 62 and the second reflecting surface 63 are arranged vertically. The light guide plate body 1 is composed of a substrate layer 2, a reflecting layer 3, a mesh layer 4 and a diffusion layer 5. Each layer cooperates with each other to effectively realize the conduction and diffusion of light. The reflecting layer 3 is fixed on one side of the substrate layer 2, and can reflect the leaked light back into the light guide plate to improve the utilization efficiency of light. The mesh layer 4 and the diffusion layer 5 further optimize the distribution of light and make the light more uniform. Secondly, the reflecting part 6 arranged at equal intervals enhances the performance of the light guide plate. The first reflecting surfaces 62 on both sides of the reflecting groove 61 of the reflecting part 6 are arranged perpendicular to the second reflecting surfaces 63 on the other two sides. This structure can reflect light from different angles to prevent the light from directly entering the human eyes and causing damage after being emitted from the reflecting surface of the light guide plate. At the same time, it can also diffuse the light source more fully, thereby improving the light output effect and overall brightness of the light guide plate.

[0034] See also Figure 7-Figure 9 The substrate layer 2 is composed of polycarbonate, the dot layer 4 is composed of photoresist, the reflective layer 3 is composed of a silver-plated film, and the outer surface of the light guide plate body 1 is also fixedly connected with an anti-ultraviolet layer 16, and the anti-ultraviolet layer 16 is configured to prevent external rays. A light guide plate assembly comprises an outer protective layer 7, and the outer protective layer 7 is arranged on the outer surface of the light guide plate body 1. The outer protective layer 7 can be respectively configured as a dustproof layer, an anti-oil layer, an anti-adhesion layer, an anti-scratch and wear-resistant layer or an anti-static layer according to application requirements. The dustproof layer can be composed of a nano-silicon dioxide coating, the anti-oil layer can be composed of a fluorocarbon coating, the anti-adhesion layer can be composed of a polyamide wax, the anti-scratch and wear-resistant layer can be composed of a hard aluminum oxide coating, and the anti-static layer can be composed of a metal oxide conductive material. The substrate layer 2 is composed of polycarbonate and has good heat resistance and stability. It can adapt to different usage environments. The dot layer 4 is composed of photoresist, which can accurately control the dot pattern and improve the optical performance of the light guide plate. The reflective layer 3 adopts a silver-plated film with high reflectivity, which can effectively improve the utilization rate of light. The anti-ultraviolet layer 16 on the outer surface of the light guide plate is set as an anti-ultraviolet film layer to prevent ultraviolet rays from damaging the light guide plate and extend its service life. The outer protective layer 7 of the light guide plate assembly can be set with different functional layers according to application requirements, such as a dust-proof layer composed of a nano-silicon dioxide coating, which can effectively prevent dust from adhering; an anti-oil layer composed of a fluorocarbon coating, which can resist oil pollution; an anti-adhesion layer composed of polyamide wax, which reduces adhesion; a scratch-resistant and wear-resistant layer composed of a hard aluminum oxide coating, which improves the wear resistance of the light guide plate; an anti-static layer composed of a metal oxide conductive material, which prevents static electricity accumulation.

[0035] See also Figure 1-Figure 6, including an outer frame 17 and a light guide plate assembly, wherein inner grooves 8 are provided at the four inner corners of the outer frame 17, and mounting blocks 9 are slidably connected inside the inner grooves 8, and an inner frame 10 is fixedly installed inside the mounting blocks 9, and two mounting grooves 11 are provided at both the front and rear ends of the inner frame 10, and an opening is provided at one end of the mounting groove 11, and the mounting groove 11 passes through the outer frame 17 through the opening, and slide grooves 12 are provided at both the upper and lower ends of the two mounting grooves 11, and mounting mechanisms 13 are slidably connected inside the slide grooves 12, and the mounting mechanisms 13 are movably installed inside the mounting grooves 11 through the slide grooves 12, and a mounting groove 11 located at the front side of the two mounting grooves 11 is installed with a light source board 14 through the mounting mechanism 13, and the light guide plate body 1 is installed through the mounting mechanism 13 A limiting mechanism 15 is provided on the upper end of the back side of the outer frame 17, and the limiting mechanism 15 is used to limit the inner frame 10. The limiting mechanism 15 includes a movable groove 151 and a limiting groove 155. The movable groove 151 is provided on the upper end of the back side of the outer frame 17. Both ends of the inner side of the movable groove 151 are fixedly connected to the limiting spring 152. The outer end of the limiting spring 152 is fixedly connected to the movable block 153. The outer end of the movable block 153 is fixedly connected to the limiting block 154. The limiting groove 155 is provided on the inner side of the mounting block 9. The end of the limiting block 154 is inserted into the inner side of the limiting groove 155. A linkage assembly 156 is provided on the outer side of the movable block 153. The linkage assembly 156 includes an articulated wheel 1561 and a pull ring 15 62, both sides of the pull ring 1562 are fixedly connected with hinges 1563, the hinge wheel 1561 is rotatably connected to the front of the movable block 153, the pull ring 1562 is hinged with a connecting rod 1564 through the hinges 1563 on both sides, the outer end of the connecting rod 1564 is fixedly connected to the inner side of the hinge wheel 1561, the outer frame 17 cooperates with the inner frame 10, and a stable installation is achieved through the sliding connection between the mounting block 9 and the inner groove 8. The setting of the mounting groove 11 and the slide groove 12 provides an installation space for the mounting mechanism 13, so that the light source board 14 and the light guide plate body 1 can be easily installed and fixed through the mounting mechanism 13, which facilitates the assembly and disassembly process and is conducive to inspection and maintenance. The limiting mechanism 15 on the back of the outer frame 17 further enhances the stability of the device The cooperation of the limit spring 152, the movable block 153 and the limit block 154 can realize precise limiting by inserting the limit block 154 into the limit groove 155 when installing the inner frame 10, ensuring that the inner frame 10 will not loosen during use. The design of the pull ring 1562, the hinge 1563, the connecting rod 1564 and the hinge wheel 1561 in the linkage assembly 156 makes it possible to drive the linkage of various components by pulling the pull ring 1562 when disassembly is required, so that the limit block 154 can be easily separated from the limit groove 155, and the disassembly of the inner frame 10 can be completed quickly, which greatly improves the convenience and efficiency of operation. The overall device fully considers practicality and maintainability in structural design, which brings great convenience to the use and maintenance of the light guide plate display device.

[0036] See also Figure 1-Figure 5 The mounting mechanism 13 includes a slide bar 131, which is slidably connected to the inner side of the slide groove 12. A storage frame 132 is fixedly installed between the inner sides of the slide bar 131. The storage frame 132 is slidably connected to the inside of the mounting groove 11. A limiting component 133 is provided at one end of the storage frame 132 near the opening of the mounting groove 11. The limiting component 133 includes a strip groove 1331 and a card groove 1332. The strip groove 1331 is opened on one side of the storage frame 132 near the opening of the mounting groove 11. Both ends of the strip groove 1331 are fixedly connected to the inner side of the storage frame 132. There is a telescopic spring 1333, the outer end of the telescopic spring 1333 is fixedly connected to a slider 1334, the slider 1334 is slidably connected to the inner two ends of the strip groove 1331, the outer side of the slider 1334 passes through the strip groove 1331 and is fixedly connected to a card plate 1335, the card slot 1332 is respectively opened at the upper and lower sides of one end of the light guide plate body 1 and the light source board 14 close to the opening of the installation groove 11, the end of the card plate 1335 is inserted into the inside of the card slot 1332, the outer side of the slider 1334 is fixedly connected to a toggle member 1336, the slide bar 131 and the light source board 14 are connected. The cooperation of the slide groove 12 enables the storage frame 132 to slide stably in the installation groove 11, providing a reliable installation position for the light source board 14 and the light guide plate body 1. The limit assembly 133 inside the storage frame 132 is cleverly designed. Through the cooperation of the strip groove 1331, the telescopic spring 1333, the slider 1334, the card plate 1335 and the card groove 1332, the light source board 14 and the light guide plate body 1 are quickly fixed and disassembled. When installation is required, the toggle member 1336 is pushed to drive the slider 1334 to move outward, so that the telescopic spring 133 3 is extended, and after the card plate 1335 is moved outward, the light source board 14 and the light guide plate body 1 can be placed in the storage frame 132, and the toggle member 1336 is released, and the telescopic spring 1333 is reset to drive the card plate 1335 to be inserted into the card slot 1332, so as to achieve stable limited installation. When disassembly is required, the toggle member 1336 is adjusted again to make the card plate 1335 disengage from the card slot 1332, so that the light source board 14 or the light guide plate body 1 can be easily taken out, which is convenient for inspection and maintenance. This installation mechanism 13 is simple and convenient to operate, and improves the convenience of use and maintenance efficiency of the device.

[0037] The working principle of the present invention is: a reflective portion 6 is arranged on the light guide plate body 1. When in use, the first reflective surface 62 and the second reflective surface 63 inside the reflective groove 61 work together to reflect. The reflective portions 6 are distributed at equal intervals, so that the light guide plate body 1 can reflect the diffuse light source through the first reflective surface 62 and the second reflective surface 63 arranged at equal intervals, so as to avoid a certain amount of light being directly shot into the human eye after being emitted from the reflective surface of the light guide plate and causing damage to the human eye. At the same time, an outer protective layer 7 is used during the application process, and the corresponding functional layer can be selected according to needs, such as a dustproof layer can assist in dustproofing, an anti-oil layer can prevent oil stains, an anti-scratch and wear-resistant layer has strong anti-scratch and wear-resistant properties, and an anti-static layer can play an anti-static role. The light guide plate can be provided with different functions according to specific needs, such as dustproofing, anti-oil staining, anti-adhesion, high-strength wear-resistant or anti-static, etc., to improve its application effect in various occasions. The anti-ultraviolet layer 16 is provided to play an anti-ultraviolet role, and further improve the performance of the light guide plate assembly.

[0038] The mounting mechanism 13 is provided. During use, the toggle member 1336 is pushed to drive the slider 1334 to move outward. The outward movement of the slider 1334 will pull the telescopic spring 1333, so that the telescopic spring 1333 is in an extended state. When the telescopic spring 1333 is in an extended state, the card plate 1335 moves outward. At this time, the light source board 14 and the light guide plate body 1 can be placed in the inner groove of the storage frame 132. The toggle member 1336 is released, and the telescopic spring 1333 is reset to drive the slider 1334 to move inward. The inward movement of the slider 1334 drives the card plate 1335 to move inward. After the card plate 1335 moves inward, it can be inserted into the interior of the card slot 1332. The card plate 1335 and the card slot 1332 are inserted into each other to set limit positions, so that the light source board 14 and the light guide plate body 1 can be stably installed in the interior of the storage frame 132, and then the storage frame 132 is inserted into the mounting groove 11. The slide bar 131 is inserted into the inner side of the slide groove 12, and then the storage frame 132 and the inner frame 10 are combined. At this time, the mounting blocks 9 at the four corners of the storage frame 132 are inserted into the inner side of the inner groove 8, and the installation can be completed by limiting the position with the assistance of the limiting mechanism 15. If it is necessary to disassemble the light source board 14 and the light guide plate body 1, the limiting mechanism 15 can be adjusted, and then the mounting block 9 is removed from the inner side of the inner groove 8. At this time, the inner frame 10 can be taken out, and then the slide bar 131 inside the slide groove 12 can be pulled out to pull the storage frame 132. At this time, the toggle member 1336 is adjusted again, and the limiting spring 152 is squeezed again to stretch. At this time, the slider 1334 moves outward and the card block can fall off the card groove 1332, and then the light source board 14 or the light guide plate body 1 can be removed from the inside of the storage frame 132, which is convenient for quick maintenance of the light source board 14 and the light guide plate body 1;

[0039] A limiting mechanism 15 is provided. During use, when the installation block 9 needs to be inserted into the inner groove 8, the pull ring 1562 can be pulled downward, and the pull ring 1562 moves downward to drive the hinge 1563 to cooperate with the connecting rod 1564 and the hinge wheel 1561 to rotate in linkage. At this time, the movable block 153 is driven by pulling the connecting rod 1564 to squeeze the limiting spring 152 to contract. When the limiting spring 152 contracts, the limiting block 154 is driven to disengage from the limiting groove 155. At this time, the entire inner frame 10 can be inserted into the inner part of the outer frame 17. When the inner frame 10 is installed, the pull ring 1562 is released, and the limiting spring 152 is reset to synchronously push the two movable blocks 153 inside and outside the movable groove 151. The movable block 153 moves outward and drives the limit block 154 to be inserted into the inner side of the limit groove 155. The limit block 154 and the limit groove 155 limit each other, and the auxiliary card connection is used to install the installation block 9 inside the inner groove 8. At this time, the inner frame 10 and the storage frame 132 can be installed inside the outer frame 17. When disassembly is required, it is only necessary to pull the pull ring 1562 to drive the hinge 1563, the connecting rod 1564 and the hinge wheel 1561 to work together, and then pull the movable block 153 to squeeze the limit spring 152 to move inward. At this time, the limit block 154 can leave the limit groove 155 again, so that the inner frame 10 can be quickly disassembled and assembled, which is convenient for disassembly and assembly of the light source panel 14 and the light guide plate body 1.

Claims

1. A light guide plate, characterized in that: The invention comprises a light guide plate body (1), wherein the light guide plate body (1) is composed of a substrate layer (2), a reflection layer (3), a mesh layer (4) and a diffusion layer (5), wherein the reflection layer (3) is fixedly connected to one side of the substrate layer (2), the side of the reflection layer (3) away from the substrate layer (2) is fixedly connected to the mesh layer (4), the side of the mesh layer (4) away from the reflection layer (3) is fixedly connected to the diffusion layer (5), and reflection parts (6) are arranged at equal intervals on one side of the light guide plate body (1).

2. The light guide plate according to claim 1, characterized in that: The reflecting portion (6) comprises a reflecting groove (61), wherein the reflecting groove (61) is provided on one side of the light guide plate body (1), wherein first reflecting surfaces (62) are provided on two sides of the reflecting groove (61), and second reflecting surfaces (63) are provided on the other two sides of the reflecting groove (61), wherein the first reflecting surface (62) and the second reflecting surface (63) are arranged vertically.

3. The light guide plate according to claim 1, characterized in that: The substrate layer (2) is made of polycarbonate, the dot layer (4) is made of photoresist, the reflective layer (3) is made of a silver-plated film, and the outer surface of the light guide plate body (1) is also fixedly connected to an anti-ultraviolet layer (16), and the anti-ultraviolet layer (16) is configured as a thin film layer to prevent external rays.

4. A light guide plate assembly, using the light guide plate according to any one of claims 1 to 3, characterized in that: It comprises an outer protective layer (7), wherein the outer protective layer (7) is arranged on the outer surface of the light guide plate body (1).

5. The light guide plate assembly according to claim 4, characterized in that: The outer protective layer (7) can be set as a dustproof layer, an oil-proof layer, an anti-adhesion layer, an anti-scratch and wear-resistant layer or an anti-static layer according to application requirements. The dustproof layer can be composed of a nano-silicon dioxide coating, the oil-proof layer can be composed of a fluorocarbon coating, the anti-adhesion layer can be composed of polyamide wax, the anti-scratch and wear-resistant layer can be composed of a hard aluminum oxide coating, and the anti-static layer can be composed of a metal oxide conductive material.

6. A light guide plate display device, using the light guide plate assembly according to claim 5, characterized in that: The invention comprises an outer frame (17), wherein the inner four corners of the outer frame (17) are provided with inner grooves (8), the inner part of the inner grooves (8) is slidably connected with a mounting block (9), the inner part of the mounting block (9) is fixedly installed with an inner frame (10), the inner front and rear ends of the inner part of the inner frame (10) are provided with two mounting grooves (11), one end of the mounting groove (11) is provided with an opening and the mounting groove (11) passes through the outer frame (17) through the opening, the upper and lower ends of the two mounting grooves (11) are provided with slide grooves (12), the inner side of the slide grooves (12) is provided with a plurality of mounting grooves (11). A mounting mechanism (13) is slidably connected, and the mounting mechanism (13) is movably mounted inside the mounting groove (11) through a slide groove (12); one of the two mounting grooves (11) located on the front side is mounted with a light source board (14) through the mounting mechanism (13); the light guide plate body (1) is mounted on the inner side of the mounting groove (11) located on the rear side of the two mounting grooves (11) through the mounting mechanism (13); a limiting mechanism (15) is provided at the upper end of the back side of the outer frame (17), and the limiting mechanism (15) is used to limit the inner frame (10).

7. The light guide plate display device according to claim 6, characterized in that: The limiting mechanism (15) comprises a movable groove (151) and a limiting groove (155); the movable groove (151) is arranged at the upper end of the back side of the outer frame (17); both ends of the movable groove (151) are fixedly connected to limiting springs (152); the outer end of the limiting spring (152) is fixedly connected to a movable block (153); the outer end of the movable block (153) is fixedly connected to a limiting block (154); the limiting groove (155) is arranged on the inner side of the mounting block (9); the end of the limiting block (154) is inserted into the inner side of the limiting groove (155); and a linkage assembly (156) is arranged on the outer side of the movable block (153).

8. The light guide plate display device according to claim 7, characterized in that: The linkage assembly (156) comprises an articulated wheel (1561) and a pull ring (1562), both sides of the pull ring (1562) are fixedly connected with hinges (1563), the articulated wheel (1561) is rotatably connected to the front side of the movable block (153), the pull ring (1562) is hinged with a connecting rod (1564) through the hinges (1563) on both sides, and the outer end of the connecting rod (1564) is fixedly connected to the inner side of the articulated wheel (1561).

9. The light guide plate display device according to claim 6, characterized in that: The mounting mechanism (13) comprises a slide bar (131), the slide bar (131) is slidably connected to the inner side of the slide groove (12), a storage frame (132) is fixedly installed between the inner sides of the slide bar (131), the storage frame (132) is slidably connected to the inside of the mounting groove (11), and a limiting component (133) is provided at one end of the storage frame (132) close to the opening of the mounting groove (11).

10. The light guide plate display device according to claim 9, characterized in that: The limiting component (133) comprises a strip groove (1331) and a clamping groove (1332); the strip groove (1331) is provided on a side of the storage frame (132) close to the opening of the mounting groove (11); both ends of the strip groove (1331) are fixedly connected with telescopic springs (1333); the outer ends of the telescopic springs (1333) are fixedly connected with sliders (1334); the sliders (1334) are slidably connected to the two ends of the strip groove (1331); the outer side of the slider (1334) passes through the strip groove (1331) and is fixedly connected with a clamping plate (1335); the clamping groove (1332) is respectively provided on the upper and lower sides of one end of the light guide plate body (1) and the light source plate (14) close to the opening of the mounting groove (11); the end of the clamping plate (1335) is inserted into the inside of the clamping groove (1332); and the outer side of the slider (1334) is fixedly connected with a toggle member (1336).

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