CN213581427U - Wedge-shaped light guide plate backlight source - Google Patents
Wedge-shaped light guide plate backlight source Download PDFInfo
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- CN213581427U CN213581427U CN202022821674.1U CN202022821674U CN213581427U CN 213581427 U CN213581427 U CN 213581427U CN 202022821674 U CN202022821674 U CN 202022821674U CN 213581427 U CN213581427 U CN 213581427U
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- shaped light
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Abstract
The utility model discloses a wedge-shaped light guide plate backlight source, which comprises a protective frame, wherein the bottom of the protective frame is fixedly connected with an oblique base plate, the top of the oblique base plate is fixedly provided with a reflecting plate, the top of the reflecting plate is fixedly provided with a wedge-shaped light guide plate, one end of the wedge-shaped light guide plate is fixedly provided with a light source assembly, the light source assembly comprises a FPC part and a light source, the surface of the FPC part is fixedly provided with the light source, the top of the wedge-shaped light guide plate is fixedly provided with a diffusing plate, the top of the diffusing plate is fixedly provided with a light increasing plate, and the two sides of the connecting part of the protective frame and the wedge-shaped light guide plate are both provided with first grooves. The service life is also increased.
Description
Technical Field
The utility model relates to an electron optics field specifically is a wedge type light guide plate backlight.
Background
The development of the light guide plate backlight source can be traced back to the second war period. At the time, a subminiature tungsten lamp was used as a backlight source for aircraft instruments. This is the initial stage of backlight development. Through development of half a century, the backlight source becomes an independent electronic subject and gradually forms a research and development hotspot, the backlight source mainly comprises a light source, a light guide plate, an optical film, a plastic frame and the like, is a light source positioned at the back of a liquid crystal display, and the luminous effect of the light source directly influences the visual effect of a liquid crystal display module, but the existing backlight source has some defects.
The conventional backlight source is easily subjected to vibration extrusion in the use process, so that the normal use of the backlight source is influenced, and the installation of optical diaphragms of the backlight source is troublesome, cannot be effectively fixed and is easy to loosen, so that the use efficiency of the backlight source is reduced, the light guide efficiency is low, and the backlight source cannot efficiently illuminate.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a wedge type light guide plate backlight to current backlight that proposes in solving above-mentioned background art receives vibrations extrusion easily in the use, has influenced the normal use of backlight, and the installation is more troublesome between the optics diaphragm of backlight moreover, can not effectually fix, and is not hard up easily, leads to the availability factor to this backlight to reduce, and leaded light efficiency is low, can not the problem of high-efficient illumination.
In order to achieve the above object, the utility model provides a following technical scheme: the wedge-shaped light guide plate backlight source comprises a protective frame, wherein the bottom of the protective frame is fixedly connected with an inclined substrate, the top of the inclined substrate is fixedly provided with a reflector, the top of the reflector is fixedly provided with a wedge-shaped light guide plate, one end of the wedge-shaped light guide plate is fixedly provided with a light source assembly, the light source assembly comprises an FPC (flexible printed circuit) component and a light source, the surface of the FPC component is fixedly provided with the light source, the top of the wedge-shaped light guide plate is fixedly provided with a diffuser plate, the top of the diffuser plate is fixedly provided with a light intensifying plate, the two sides of the joint of the protective frame and the wedge-shaped light guide plate are both provided with first grooves, the inner wall of each first groove is fixedly connected with a supporting plate, the bottom end of one side of the supporting plate is provided with a second, the bottom end of one side of the movable rod is fixedly connected with the inner wall of the second groove through a return spring.
As a preferred technical scheme of the utility model, the equal fixed mounting in four corners of protective frame bottom has the buffer block, the spout has been seted up to the bottom of buffer block, the inside slidable mounting of spout has the slider, the bottom fixedly connected with bottom plate of slider, the surface cover of slider is equipped with damping spring.
As an optimized technical scheme of the utility model, the substrate to one side is made by aluminium system material, a plurality of louvres have been seted up to the inside of substrate to one side.
As a preferred technical scheme of the utility model, one side fixedly connected with fixture block of reflector panel, the draw-in groove that sets up with the fixture block is seted up to one side of wedge type light guide plate and reflector panel junction, just the diffuser plate, increase the worn-out fur and wedge type light guide plate block between two liang are connected.
As an optimal technical scheme of the utility model, the wedge type light guide plate is made by the ya keli panel, the bottom printing of wedge type light guide plate has a plurality of leaded light point.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the outer side of the wedge-shaped light guide plate is provided with the protective frame, when the light guide plate is extruded by external force, the light guide plate can be buffered, the influence on the use of the light guide plate due to stress extrusion deformation is prevented, the bottom of the protective frame is provided with the damping device, the compression resistance of the light guide plate backlight source is improved, the service life of the light guide plate backlight source is prolonged, and the anti-loosening device is arranged in the shell, so that the light guide plate and the protective frame are tightly attached to each other left and right, and the light guide plate is prevented from being collided;
2. one side of the reflector is fixedly connected with a clamping block, the light guide plate is provided with a clamping groove, and the clamping groove and the clamping block are connected, so that the light guide plate is convenient to mount, the mounting time is saved, and the practicability of the device is improved;
3. the wedge-shaped light guide plate is made of optical acrylic/PC plates, and simultaneously adopts UV screen printing technology, so that the wedge-shaped light guide plate is high in reliability, the surface resistance is guaranteed, light can be uniformly diffused from the surface, and the reflector is used for reflecting light exposed from the bottom surface back to the light guide plate so as to improve the light use efficiency.
Drawings
FIG. 1 is a side cross-sectional view of a wedge-shaped light guide plate backlight of the present invention;
FIG. 2 is a perspective view of a wedge-shaped light guide plate of the present invention;
fig. 3 is a block connection diagram of a wedge-shaped light guide plate backlight of the present invention.
In the figure: 1. a protective frame; 2. a tapered substrate; 3. a reflector; 4. a wedge-shaped light guide plate; 5. an FPC component; 6. a light source; 7. a diffusion plate; 8. a brightening plate; 9. a first groove; 10. a support plate; 11. a second groove; 12. a connecting rod; 13. a movable rod; 14. a return spring; 15. a buffer block; 16. a slider; 17. a base plate; 18. a damping spring; 19. a clamping block; 20. a clamping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a wedge-shaped light guide plate backlight source, which comprises a protection frame 1, a wedge-shaped substrate 2 fixedly connected to the bottom of the protection frame 1, a reflector 3 fixedly mounted on the top of the wedge-shaped substrate 2, a wedge-shaped light guide plate 4 fixedly mounted on the top of the reflector 3, a light source assembly fixedly disposed on one end of the wedge-shaped light guide plate 4, the light source assembly comprising a FPC unit 5 and a light source 6, the surface of the FPC unit 5 being fixedly provided with the light source 6, a diffuser plate 7 fixedly disposed on the top of the wedge-shaped light guide plate 4, a light intensifying plate 8 fixedly disposed on the top of the diffuser plate 7, first grooves 9 disposed on both sides of the connection between the protection frame 1 and the wedge-shaped light guide plate 4, a support plate 10 fixedly connected to the inner wall of the first grooves 9, a second groove 11 disposed on the bottom, the bottom of the connecting rod 12 is rotatably connected with a movable rod 13, and the bottom end of one side of the movable rod 13 is fixedly connected with the inner wall of the second groove 11 through a return spring 14.
Preferably, the equal fixed mounting in four corners of bearer bar 1 bottom has buffer block 15, the spout has been seted up to buffer block 15's bottom, the inside slidable mounting of spout has slider 16, slider 16's bottom fixedly connected with bottom plate 17, slider 16's surface cover is equipped with damping spring 18, receive pressure when bearer bar 1, pass to buffer block 15, buffer block 15 pushes down extrusion damping spring 18, damping spring 18's elastic restoring force offset pressure, can the effectual vibrations that reduce wedge type light guide plate 4 bodies, and service life is prolonged.
Preferably, the inclined substrate 2 is made of aluminum, and a plurality of heat dissipation holes are formed in the inclined substrate 2, so that heat dissipation of the backlight source of the light guide plate can be effectively assisted.
Preferably, one side fixedly connected with fixture block 19 of reflector panel 3, wedge type light guide plate 4 and one side of reflector panel 3 junction set up with the draw-in groove 20 that fixture block 19 block set up, and diffuser plate 7, increase the block connection between 8 and the wedge type light guide plate 4 two liang, be connected through draw-in groove 20 and fixture block 19 block between, be convenient for to the installation of wedge type light guide plate 4, save installation time, improved the device's practicality.
Preferably, the wedge-shaped light guide plate 4 is made of acrylic sheet material, a plurality of light guide points are printed at the bottom of the wedge-shaped light guide plate 4 to uniformly diffuse light from the surface, and the light reflecting plate 3 reflects light exposed from the bottom surface back into the light guide plate to improve the utilization efficiency of the light.
When the utility model is used, the light of the wedge-shaped light guide plate backlight source of the utility model is emitted to each light guide point through the light source 6, the reflected light can be diffused to each angle, then the reflected condition is destroyed to be emitted from the front of the wedge-shaped light guide plate 4, the light is uniformly diffused by the diffusion plate 7, the formation of light spots is inhibited by the light intensifying plate 8, the oblique base plate 2 is utilized to contribute to the heat dissipation of the wedge-shaped light guide plate 4, the anti-loosening device is arranged, the two movable rods 13 are driven by the elasticity of the reset spring 14 to fix the wedge-shaped light guide plate 4, after the wedge-shaped light guide plate 4 is fixed, each layer of plate is connected by the fixture block 19, the installation of the wedge-shaped light guide plate 4 is convenient, the applicability of the device is improved, the damping device is arranged, the pressure is applied to the protection frame 1, the protection frame is transmitted to the buffer block 15, the damping spring 18 is pressed, the service life is prolonged, and the wedge-shaped light guide plate 4 is effectively assisted in heat dissipation through the aluminum inclined substrate 2 shell, so that the wedge-shaped light guide plate is durable.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a wedge type light guide plate backlight, includes protecting frame (1), its characterized in that: the light source protection structure is characterized in that an inclined base plate (2) is fixedly connected to the bottom of the protection frame (1), a reflecting plate (3) is fixedly mounted at the top of the inclined base plate (2), a wedge-shaped light guide plate (4) is fixedly arranged at the top of the reflecting plate (3), a light source assembly is fixedly arranged at one end of the wedge-shaped light guide plate (4), the light source assembly comprises an FPC (flexible printed circuit) component (5) and a light source (6), the surface of the FPC component (5) is fixedly provided with the light source (6), the top of the wedge-shaped light guide plate (4) is fixedly provided with a diffusion plate (7), the top of the diffusion plate (7) is fixedly provided with a light enhancement plate (8), first grooves (9) are formed in two sides of the joint of the protection frame (1) and the wedge-shaped light guide plate (4), a support plate (10) is fixedly connected to the inner wall of the first, the top fixedly connected with connecting rod (12) of backup pad (10) one side, the bottom of connecting rod (12) is rotated and is connected with movable rod (13), the inner wall fixed connection of reset spring (14) and second recess (11) is passed through to the bottom of movable rod (13) one side.
2. A wedge-type light guide plate backlight according to claim 1, wherein: the utility model discloses a damping spring's protective frame, including fender frame (1), four equal fixed mounting in corner of fender frame (1) bottom have buffer block (15), the spout has been seted up to the bottom of buffer block (15), the inside slidable mounting of spout has slider (16), the bottom fixedly connected with bottom plate (17) of slider (16), the surface cover of slider (16) is equipped with damping spring (18).
3. A wedge-type light guide plate backlight according to claim 1, wherein: the inclined base plate (2) is made of aluminum materials, and a plurality of heat dissipation holes are formed in the inclined base plate (2).
4. A wedge-type light guide plate backlight according to claim 1, wherein: one side of the reflector (3) is fixedly connected with a clamping block (19), one side of the joint of the wedge-shaped light guide plate (4) and the reflector (3) is provided with a clamping groove (20) which is clamped with the clamping block (19), and the diffusion plate (7), the brightness enhancement plate (8) and the wedge-shaped light guide plate (4) are clamped and connected in pairs.
5. A wedge-type light guide plate backlight according to claim 1, wherein: the wedge-shaped light guide plate (4) is made of an acrylic plate, and a plurality of light guide points are printed at the bottom of the wedge-shaped light guide plate (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821674.1U CN213581427U (en) | 2020-11-30 | 2020-11-30 | Wedge-shaped light guide plate backlight source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022821674.1U CN213581427U (en) | 2020-11-30 | 2020-11-30 | Wedge-shaped light guide plate backlight source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213581427U true CN213581427U (en) | 2021-06-29 |
Family
ID=76544503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022821674.1U Active CN213581427U (en) | 2020-11-30 | 2020-11-30 | Wedge-shaped light guide plate backlight source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213581427U (en) |
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2020
- 2020-11-30 CN CN202022821674.1U patent/CN213581427U/en active Active
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