CN213581428U

CN213581428U - Integral type light guide plate structure

Info

Publication number: CN213581428U
Application number: CN202023108931.3U
Authority: CN
Inventors: 王冬明
Original assignee: Shanxi Yuhao New Optical Material Co ltd
Current assignee: Shanxi Yuhao New Optical Material Co ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2021-06-29
Anticipated expiration: 2030-12-22

Abstract

The utility model discloses an integral type light guide plate structure relates to backlight unit technical field, including installing frame and light guide plate, the internal surface butt of connecting rod has the cock stem, the surface and the installing frame threaded connection of screw rod, and it has the pressing shaft to peg graft in the inside of mounting hole, and the spread groove with flexure strip looks adaptation is seted up to the internal surface of mounting hole, and one side fixedly connected with second pressing rod of connecting rod, butt have the reflector plate between first pressing rod and the second pressing rod. The utility model discloses a set up screw rod, cock stem, connecting rod, first compressing tightly pole and second compressing tightly pole, can be taut with the four sides of reflector plate, prevent that it from taking place bending deformation, guarantee the production quality of light guide plate, can improve the production qualification rate to a certain extent, through setting up compressing tightly axle, flexure strip, mounting hole, spread groove, first compressing tightly pole and second compressing tightly pole, realize convenient and fast and install the reflector plate on the light guide plate, improve production efficiency.

Description

Integral type light guide plate structure

Technical Field

The utility model relates to a backlight unit technical field specifically is an integral type light guide plate structure.

Background

The backlight module is one of the key components of the liquid crystal display panel and the side light emitting panel lamp, and its function is to provide sufficient light source with uniform brightness and distribution. Light emitted by the LED enters the light guide medium (light guide plate substrate) from the side surface, is diffused and reflected by the dot points of the light reflecting surface of the light guide medium, escapes from the light emitting surface of the light guide medium, and is converted into a uniform and soft surface light source under the light diffusion action of the diffusion film of the light emitting surface. In order to make the light guide plate emit light uniformly, diffuse reflection is carried out on the light reflecting surface through various mesh points with different densities and sizes so as to ensure that the efficiency of light reflection towards all directions is basically the same. The reflector plate (reflector plate) reflects the light transmitted by the reflecting surface of the light guide medium back to the light guide medium, so as to improve the utilization efficiency of the light and the brightness. The light-emitting surface diffusion film has the function of enabling light to be more uniform and softer. This is a commonly used "light guide plate technology". The light guide plate and the reflective sheet are generally pressed by external sponge and directly overlapped together, and whether the gap between the reflective sheet and the light guide plate is uniform or not directly influences the light emitting quality of the backlight module.

At present, bending deformation appears easily when the reflector plate of current integral type light guide plate installs, consequently direct influence the qualification rate of light guide plate, cause the waste to the material, the installation of reflector plate is comparatively difficult moreover, direct influence to production efficiency, the reflector plate of current integral type light guide plate has the problem that bending deformation appears easily and the installation is comparatively difficult when the installation.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides an integral type light guide plate structure has solved the problem of proposing among the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: including installing frame and light guide plate, the inside sliding connection of installing frame has the connecting rod, the internal surface butt of connecting rod has the cock stem, the both sides of cock stem are rotated and are connected with the screw rod, the surface and the installing frame threaded connection of screw rod, the mounting hole has been seted up at the both ends of connecting rod, the inside grafting of mounting hole has the compressing shaft, one side fixed connection flexure strip of compressing shaft, the spread groove with flexure strip looks adaptation is seted up to the internal surface of mounting hole, first compressing rod has been cup jointed to the opposite side of compressing shaft, one side fixedly connected with second compressing rod of connecting rod, the butt has the reflector plate between first compressing rod and the second compressing rod.

Optionally, the shape of connecting rod is the U type, the quantity of connecting rod is four, four the connecting rod is annular array distribution.

Optionally, the inside of the light guide plate is slidably connected with the plug rod, the plug rod is wedge-shaped, the cross section of the screw rod is I-shaped, and one end of the screw rod, which is far away from the plug rod, is hexagonal prism-shaped.

Optionally, the shape of the pressing shaft is T-shaped, one end of the pressing shaft is hexagonal prism, and the mounting hole is oval.

Optionally, a side of the light guide plate is fixedly connected with the mounting frame, one side of the elastic sheet is in the shape of an inclined plane, the number of the connecting grooves is a plurality, and the connecting grooves are distributed in a linear array.

Optionally, a side face, away from the light guide plate, of the installation frame is fixedly connected with a protection plate, and a side face, away from the installation frame, of the light guide plate is bonded with a diffusion layer.

Advantageous effects

The utility model provides an integral type light guide plate structure possesses following beneficial effect:

1. this integral type light guide plate structure through setting up screw rod, cock stem, connecting rod, first compressing tightly pole and second and compressing tightly the pole, and the rotation of screw rod can drive the cock stem and slide to drive connecting rod, first compressing tightly pole and second and compress tightly the pole and slide to the direction of keeping away from the reflector plate, take-up the four sides of reflector plate, prevent that it from taking place bending deformation, guarantee the production quality of light guide plate, can improve the production qualification rate to a certain extent.

2. This integral type light guide plate structure, through setting up the hold-down spindle, the flexure strip, the mounting hole, the spread groove, first hold-down rod and second hold-down rod, at the in-process that the hold-down spindle injects the mounting hole, the flexure strip also can inject in the spread groove, and it is spacing with the hold-down spindle, thereby make the four sides that first hold-down rod compressed tightly the reflector plate, because the shape of mounting hole is oval, consequently rotate the hold-down spindle and can extract it from the mounting hole in again, finally realize convenient and fast and install the reflector plate on the light guide plate, and the production efficiency is improved.

Drawings

FIG. 1 is a schematic view of the front perspective structure of the present invention;

FIG. 2 is an enlarged schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic front sectional view of the partial structure of the present invention;

fig. 4 is an enlarged schematic structural diagram of the point B in fig. 3 according to the present invention.

In the figure: 1. installing a frame; 2. a reflective sheet; 3. a first hold down bar; 4. a protection plate; 5. a light guide plate; 6. a diffusion layer; 7. a pressing shaft; 8. a screw; 9. a connecting rod; 10. a second hold down bar; 11. a stopper rod; 12. mounting holes; 13. connecting grooves; 14. an elastic sheet.

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.

Referring to fig. 1 to 4, the present invention provides a technical solution: an integrated light guide plate structure comprises a mounting frame 1 and a light guide plate 5, connecting rods 9 are slidably connected inside the mounting frame 1, the connecting rods 9 are U-shaped, the number of the connecting rods 9 is four, the four connecting rods 9 are distributed in an annular array, plug rods 11 abut against the inner surfaces of the connecting rods 9, screw rods 8 are rotatably connected to two sides of each plug rod 11, the inside of the light guide plate 5 is slidably connected with the plug rods 11, the plug rods 11 are wedge-shaped, the cross sections of the screw rods 8 are I-shaped, one ends of the screw rods 8, far away from the plug rods 11, are hexagonal prisms, the outer surfaces of the screw rods 8 are in threaded connection with the mounting frame 1, mounting holes 12 are formed in two ends of each connecting rod 9, a pressing shaft 7 is T-shaped, one end of the pressing shaft 7 is hexagonal prism, the mounting holes 12 are oval, a pressing shaft 7 is inserted inside the mounting holes 12, and an elastic sheet 14 is fixedly connected, spread groove 13 with 14 looks adaptations of flexure strip is seted up to the internal surface of mounting hole 12, a side and the 1 fixed connection of installing frame of light guide plate 5, one side shape of flexure strip 14 is the inclined plane type, the quantity of spread groove 13 is a plurality of, a plurality of spread groove 13 is linear array distribution, first compressing tightly pole 3 has been cup jointed to the opposite side of compress tightly axle 7, one side fixedly connected with second of connecting rod 9 compresses tightly pole 10, the butt has reflector panel 2 between first compressing tightly pole 3 and the second compresses tightly pole 10, a side fixedly connected with guard plate 4 of light guide plate 5 is kept away from to installing frame 1, a side that installing frame 1 was kept away from to light guide plate 5 bonds and has diffusion layer 6.

When the reflective sheet is used, the four sides of the reflective sheet 2 are placed between the first pressing rod 3 and the second pressing rod 10, then the pressing shaft 7 is inserted into the mounting hole 12, in the process that the pressing shaft 7 is inserted into the mounting hole 12, as the shape of one side of the elastic sheet 14 is the inclined plane type, the elastic sheet 14 can be inserted into the connecting groove 13 according to the elasticity of the elastic sheet 14, and the pressing shaft 7 is limited, so that the four sides of the reflective sheet 2 are pressed by the first pressing rod 3, and as the mounting hole 12 is oval, the pressing shaft 7 can be pulled out of the mounting hole 12 by rotating the pressing shaft 7; after fixing reflector plate 2, the outer end of rethread twist screw rod 8 makes it rotate, the rotation of screw rod 8 can drive cock stem 11 and slide along the direction of perpendicular to light guide plate 5 in installing frame 1, because cock stem 11's shape is the wedge, cock stem 11's slip can extrude the internal surface of connecting rod 9 and make connecting rod 9 slide to the direction of keeping away from reflector plate 2, and drive connecting rod 9, first compressing tightly pole 3 and second compressing tightly pole 10 syntropy, take up reflector plate 2's four sides, prevent that it from taking place bending deformation, guarantee light guide plate 5's production quality, can improve the production qualification rate to a certain extent.

To sum up, the utility model is provided with the screw 8, the plug rod 11, the connecting rod 9, the first pressing rod 3 and the second pressing rod 10, the rotation of the screw 8 can drive the plug rod 11 to slide, thereby driving the connecting rod 9, the first pressing rod 3 and the second pressing rod 10 to slide towards the direction far away from the reflector plate 2, tensioning the four sides of the reflector plate 2, preventing the reflector plate 2 from bending deformation, ensuring the production quality of the light guide plate 5, improving the production qualification rate to a certain extent, by arranging the pressing shaft 7, the elastic sheet 14, the mounting hole 12, the connecting groove 13, the first pressing rod 3 and the second pressing rod 10, in the process that the pressing shaft 7 is inserted into the mounting hole 12, the elastic sheet 14 can also be inserted into the connecting groove 13, and the pressing shaft 7 is limited, thereby the first pressing rod 3 presses the four sides of the reflector plate 2, because the shape of the mounting hole 12 is oval, the pressing shaft 7 can be rotated to be taken out from the mounting hole 12, finally, the reflector plate 2 is conveniently and quickly arranged on the light guide plate 5, and the production efficiency is improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides an integral type light guide plate structure, includes installing frame (1) and light guide plate (5), its characterized in that: the inner part of the mounting frame (1) is connected with a connecting rod (9) in a sliding way, the inner surface of the connecting rod (9) is connected with a plug rod (11) in a propping way, both sides of the plug rod (11) are rotatably connected with screw rods (8), the outer surfaces of the screw rods (8) are in threaded connection with the mounting frame (1), mounting holes (12) are formed in two ends of the connecting rod (9), a pressing shaft (7) is inserted into the mounting holes (12), one side of the pressing shaft (7) is fixedly connected with an elastic sheet (14), the inner surface of the mounting hole (12) is provided with a connecting groove (13) matched with the elastic sheet (14), the other side of the pressing shaft (7) is sleeved with a first pressing rod (3), one side of the connecting rod (9) is fixedly connected with a second pressing rod (10), and a reflection sheet (2) is abutted between the first pressing rod (3) and the second pressing rod (10).

2. The integrated light guide plate structure of claim 1, wherein: the connecting rods (9) are U-shaped, the number of the connecting rods (9) is four, and the connecting rods (9) are distributed in an annular array.

3. The integrated light guide plate structure of claim 1, wherein: the inside and gag lever post (11) sliding connection of light guide plate (5), the shape of gag lever post (11) is the wedge, the cross sectional shape of screw rod (8) is the I shape, the one end shape that gag lever post (11) are kept away from in screw rod (8) is hexagonal prism.

4. The integrated light guide plate structure of claim 1, wherein: the shape of the pressing shaft (7) is T-shaped, one end of the pressing shaft (7) is hexagonal prism, and the shape of the mounting hole (12) is oval.

5. The integrated light guide plate structure of claim 1, wherein: one side of light guide plate (5) and installing frame (1) fixed connection, one side shape of flexure strip (14) is the inclined plane type, the quantity of spread groove (13) is a plurality of, a plurality of spread groove (13) are linear array and distribute.

6. The integrated light guide plate structure of claim 1, wherein: a side fixedly connected with guard plate (4) of light guide plate (5) is kept away from in installing frame (1), a side that installing frame (1) was kept away from in light guide plate (5) bonds and has diffusion barrier (6).