Light guide plate of LED (light-emitting diode) backlight source of display screen

Abstract

The utility model discloses a display screen LED (light-emitting diode) backlight light guide plate, which relates to the technical field of backlight, and adopts the technical scheme that the display screen LED backlight light guide plate comprises a light guide plate body and a rubber frame sleeved outside the light guide plate, shading stickers are fixedly arranged at the top and the bottom of the light guide plate body, and connecting plates are fixedly connected to the inner walls of the two sides of the rubber frame; the light guide plate has the advantages that the rotating plate is pushed to rotate, so that the clamping blocks can be in contact with the light guide plate body, meanwhile, the torsional springs are subjected to torsional force to generate elastic deformation, then the second rotating shaft is rotated to enable the connecting blocks to move into the clamping grooves, and the light guide plate body is clamped in the clamping grooves. In this way, the rotating plate can be limited and cannot rotate, then the light guide plate body is clamped and fixed all the time, installation is completed, only the rotating plate needs to be pressed and the second rotating shaft needs to be rotated during installation, the installation steps are simple, rapid installation can be achieved, and then the labor cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of backlight sources, in particular to a display screen LED backlight source light guide plate. Background Art

[0002] LED backlight refers to the technology that uses light-emitting diodes (LEDs) as light sources to illuminate liquid crystal displays (LCDs). The backlight source is mainly composed of a light source, a light guide plate, an optical mold, and structural parts, among which the back plate and the plastic frame are essential parts.

[0003] The light guide plate needs to be installed in the plastic frame when in use, but the existing backlight light guide plate is found to be unable to be quickly installed when in use, so the efficiency is slow when assembling the light guide plate into the plastic frame, and the high complexity indirectly increases the labor cost, so it needs to be improved;

[0004] For this reason, it is necessary to invent a display screen LED backlight source light guide plate. Summary of the invention

[0005] Therefore, the utility model provides a display screen LED backlight source light guide plate to solve the problems in the background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a display screen LED backlight source light guide plate, comprising a light guide plate body and a rubber frame sleeved on the outside of the light guide plate, the top and bottom of the light guide plate body are fixedly provided with shading stickers, the inner walls on both sides of the rubber frame are fixedly connected with connecting plates, the two connecting plates are in contact with the shading stickers located at the bottom of the light guide plate body, and the four corners of the light guide plate body are provided with fixing components;

[0007] The fixing component includes a groove, which is provided on the rubber frame, and a rotating shaft 1 is connected inside the groove, and a rotating plate is fixedly sleeved outside the rotating shaft 1, and a clamping block is fixedly connected to the bottom of the rotating plate, and the clamping block is in contact with a light shielding sticker located on the top of the light guide plate body. Two torsion springs are fixedly connected between the rotating plate and the groove, and the two torsion springs are both sleeved on the outside of the rotating shaft 1, and a rotating shaft 2 is embedded in the rotating plate, and a connecting block is fixedly connected to the bottom end of the rotating shaft 2, and a clamping slot is provided inside the rubber frame, and the clamping slot is located below the groove, and the connecting block is located inside the clamping slot and in contact with the top of the clamping slot.

[0008] Preferably, the block is made of rubber material.

[0009] Preferably, the connecting block is slidably connected to the slot.

[0010] Preferably, a knob is fixedly connected to the second top end of the rotating shaft.

[0011] Preferably, the outer fixing sleeve of the knob is provided with a plurality of convex strips evenly distributed in a circular shape.

[0012] Preferably, the rotating shaft 1 is connected to the rubber frame via a bearing.

[0013] Preferably, the second rotating shaft is connected to the rotating plate via a bearing.

[0014] Preferably, two positioning grooves are provided on the top of the two connecting plates.

[0015] The beneficial effects of the utility model are:

[0016] The utility model designs four fixing components. When installing the light guide plate body, it is placed on the connecting plate, and then the rotating plate is pushed to rotate the rotating plate, so that the card block can contact the light guide plate body. At the same time, the torsion spring is elastically deformed by the torsional force, and then the second rotating shaft is rotated to move the connecting block into the card slot. In this way, the rotating plate can be restricted so that it cannot rotate, and the light guide plate body is clamped and fixed to complete the installation. During the installation, it is only necessary to press the rotating plate and rotate the second rotating shaft. The installation steps are simple, and quick installation can be achieved, thereby reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0019] Figure 1 The overall structural diagram provided by the utility model;

[0020] Figure 2 A front cross-sectional view provided for the utility model;

[0021] Figure 3 The utility model provides Figure 2 A in the enlarged view;

[0022] Figure 4An exploded perspective view provided for the utility model;

[0023] Figure 5 The utility model provides Figure 4 The enlarged view of point B in the figure;

[0024] Figure 6 A top-down perspective view provided by the utility model;

[0025] Figure 7 The utility model provides Figure 6 The enlarged view of point C in the figure;

[0026] Figure 8 A partial cross-sectional view of a rotating plate provided by the utility model being flipped and reset;

[0027] Fig. 9 The utility model provides Figure 8 The enlarged view of point D in the figure;

[0028] In the figure: 1. light guide plate body; 2. rubber frame; 3. shading sticker; 4. connecting plate; 5. groove; 6. rotating shaft 1; 7. rotating plate; 8. clamping block; 9. torsion spring; 10. rotating shaft 2; 11. connecting block; 12. clamping slot; 13. knob; 14. convex strip; 15. positioning slot. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Refer to the attached Figure 1 -Attached Fig. 9 The utility model provides a display screen LED backlight light guide plate, comprising a light guide plate body 1 and a plastic frame 2 sleeved on the outside of the light guide plate, the top and bottom of the light guide plate body 1 are fixedly provided with a shading sticker 3, the inner walls on both sides of the plastic frame 2 are fixedly connected with a connecting plate 4, the two connecting plates 4 are in contact with the shading sticker 3 located at the bottom of the light guide plate body 1, and the four corners of the light guide plate body 1 are provided with a fixing component;

[0031] The fixing component includes a groove 5, which is provided on the rubber frame 2, and a rotating shaft 6 is connected inside the groove 5, and a rotating plate 7 is fixedly sleeved outside the rotating shaft 6, and a clamping block 8 is fixedly connected to the bottom of the rotating plate 7, and the clamping block 8 contacts the light shielding sticker 3 located at the top of the light guide plate body 1, and two torsion springs 9 are fixedly connected between the rotating plate 7 and the groove 5, and the two torsion springs 9 are both sleeved outside the rotating shaft 6, and a rotating shaft 2 10 is embedded inside the rotating plate 7, and a connecting block 11 is fixedly connected to the bottom end of the rotating shaft 2 10, and a clamping groove 12 is provided inside the rubber frame 2, and the clamping groove 12 is located below the groove 5, and the connecting block 11 is located inside the clamping groove 12 and contacts the top of the clamping groove 12;

[0032] The clamping block 8 is made of rubber material, and the connecting block 11 is slidably connected with the clamping slot 12;

[0033] In this embodiment, when installing the light guide plate body 1, place it on the connecting plate 4, and then push the rotating plate 7 to rotate the rotating plate 7, so that the clamping block 8 can contact the light guide plate body 1, and at the same time, the torsion spring 9 is subjected to the torsion force and elastically deformed, and then the second rotating shaft 10 is rotated to move the connecting block 11 into the clamping groove 12, so that the rotating plate 7 can be restricted so that it cannot rotate, and then the light guide plate body 1 is clamped and fixed, thereby completing the installation;

[0034] In order to achieve the purpose of rotating the second shaft 10, the device adopts the following technical solution: a knob 13 is fixedly connected to the top of the second shaft 10, and a plurality of convex strips 14 evenly distributed in a circumferential shape are fixedly sleeved on the outside of the knob 13. Rotating the knob 13 can rotate the second shaft 10;

[0035] Among them, in order to achieve the purpose of reducing wear, the device adopts the following technical solutions: the rotating shaft 1 6 is connected to the rubber frame 2 through a bearing, and the rotating shaft 2 10 is connected to the rotating plate 7 through a bearing, and the bearing connection can reduce wear;

[0036] In order to avoid the position of the light guide plate from being offset, the device is implemented by the following technical solution: two positioning grooves 15 are provided on the top of the two connecting plates 4, and the design of the positioning grooves 15 can avoid the position of the light guide plate from being offset.

[0037] The use process of the utility model is as follows: when the light guide plate body 1 needs to be assembled into the plastic frame 2, the light guide plate body 1 is placed on the two connecting plates 4, and the light guide plate body 1 is placed on the inner side of the four positioning grooves 15, and then the rotating plate 7 is pushed to rotate the rotating plate 7, so that the card block 8 can contact with the light guide plate body 1, and at the same time, the torsion spring 9 is subjected to the torsion force and elastically deformed, and then the knob 13 is turned to rotate the rotating shaft 10, and the rotation of the rotating shaft 10 can move the connecting block 11 to the card slot 12, and it will be in contact with the card slot 12. The torsion spring 9 is in contact with the top of the light guide plate 1. The force on the rotating plate 7 will cause the rotating plate 7 to have a force away from the light guide plate body 1. At this time, the connecting block 11 is located inside the card slot 12, so that the rotating plate 7 can be restricted from rotating, thereby clamping and fixing the light guide plate body 1. The same principle is used to rotate the other three rotating plates 7 to clamp and fix the light guide plate body 1, thereby completing the installation. During the installation, it is only necessary to press the rotating plate 7 on the rotating shaft 10. The installation steps are simple, and quick installation can be achieved, thereby reducing labor costs.

[0038] When removing the light guide plate body 1, it is only necessary to rotate the knob 13 to remove the connecting block 11 from the slot 12, and then the rotating plate 7 can be flipped and reset by the rebound of the torsion spring 9, and then the light guide plate body 1 can be removed for maintenance or replacement.

[0039] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement made according to the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A display screen LED backlight light guide plate, characterized in that: It comprises a light guide plate body (1) and a plastic frame (2) sleeved on the outside of the light guide plate, the top and bottom of the light guide plate body (1) are fixedly provided with light shielding stickers (3), the inner walls on both sides of the plastic frame (2) are fixedly connected with connecting plates (4), the two connecting plates (4) are in contact with the light shielding stickers (3) located at the bottom of the light guide plate body (1), and the four corners of the light guide plate body (1) are provided with fixing components; The fixing assembly comprises a groove (5), wherein the groove (5) is provided on the rubber frame (2), a rotating shaft (6) is connected inside the groove (5), a rotating plate (7) is fixedly sleeved outside the rotating shaft (6), a clamping block (8) is fixedly connected to the bottom of the rotating plate (7), the clamping block (8) is in contact with a light shielding sticker (3) located at the top of the light guide plate body (1), two torsion springs (9) are fixedly connected between the rotating plate (7) and the groove (5), the two torsion springs (9) are sleeved outside the rotating shaft (6), a rotating shaft (10) is embedded inside the rotating plate (7), a connecting block (11) is fixedly connected to the bottom end of the rotating shaft (10), a clamping groove (12) is provided inside the rubber frame (2), the clamping groove (12) is located below the groove (5), and the connecting block (11) is located inside the clamping groove (12) and in contact with the top of the clamping groove (12).

2. A display screen LED backlight source light guide plate according to claim 1, characterized in that: The clamping block (8) is made of rubber material.

3. The display screen LED backlight light guide plate according to claim 1, characterized in that: The connecting block (11) is slidably connected to the card slot (12).

4. The display screen LED backlight light guide plate according to claim 1, characterized in that: The top end of the second rotating shaft (10) is fixedly connected with a knob (13).

5. The display screen LED backlight source light guide plate according to claim 4, characterized in that: The outer fixed sleeve of the knob (13) is provided with a plurality of convex strips (14) evenly distributed in a circumferential shape.

6. The display screen LED backlight light guide plate according to claim 1, characterized in that: The rotating shaft 1 (6) is connected to the rubber frame (2) via a bearing.

7. The display screen LED backlight light guide plate according to claim 1, characterized in that: The second rotating shaft (10) is connected to the rotating plate (7) via a bearing.

8. The display screen LED backlight light guide plate according to claim 1, characterized in that: Two positioning grooves (15) are provided on the tops of the two connection plates (4).

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