CN218975072U

CN218975072U - Backlight structure of display screen

Info

Publication number: CN218975072U
Application number: CN202222224991.4U
Authority: CN
Inventors: 段少荣
Original assignee: Shenzhen Hengjiayu Technology Co ltd
Current assignee: Shenzhen Hengjiayu Technology Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-05-05
Anticipated expiration: 2032-08-23

Abstract

The utility model discloses a display screen backlight structure, in particular to the technical field of display screens, which comprises a bottom shell, wherein a light guide plate is arranged in a cavity of the bottom shell, a lamp plate is arranged above the light guide plate, a light absorption film is stuck on the top of the light guide plate corresponding to the lamp plate, a plurality of clamping holes are formed in the side surface of the bottom shell, a fixing frame is further arranged above the cavity of the bottom shell, buckles are arranged at positions, corresponding to the clamping holes, of the side surface of the fixing frame, and a plurality of sawtooth patterns are arranged on the upper surface of the light guide plate. The utility model improves the structural design, adopts the buckle type assembly to assemble the bottom shell and the light guide plate, is simpler and quicker during installation, effectively improves the production efficiency and reduces the cost; the thickness of the light guide plate in the design is thinner, so that the cost can be saved; the sawtooth line design is denser, and the income light is faster, and light diffusion effect is better, and the display screen shows the effect better, and luminance is more even.

Description

Backlight structure of display screen

Technical Field

The utility model relates to the technical field of display screens, in particular to a backlight structure of a display screen.

Background

The display screen, like car navigation, panel computer etc. is a instrument that is used for broadcasting video, shows the picture and text, but because its structure in a poor light is complicated, and the part is numerous, leads to the price of product higher, and the display screen that market sold at present, the structure in a poor light adopts screw fixation more, and the assembly is very troublesome with dismantling, and the light guide plate in the ordinary structure in a poor light is thicker in addition, and the sawtooth pattern design interval at its top is farther, leads to light diffusion inhomogeneous, and display screen picture visual effect is relatively poor, luminance inhomogeneous.

Disclosure of Invention

In order to overcome the above-mentioned drawbacks of the prior art, an embodiment of the present utility model provides a backlight structure for a display screen, so as to solve the above-mentioned problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a display screen backlight structure, includes the drain pan, be equipped with the light guide plate in the drain pan cavity, the light guide plate top is provided with the lamp plate, the light absorption membrane has been pasted with the corresponding top of lamp plate on the light guide plate, a plurality of draw-in holes have all been seted up to the side surface of drain pan, the top of drain pan cavity still is equipped with fixed frame, the side surface of fixed frame is equipped with the buckle with the corresponding position of draw-in hole, the upper surface of light guide plate is equipped with a plurality of sawtooth lines.

Preferably, the thickness of the light guide plate is set to 1.28-1.32mm.

Preferably, the spacing between the sawtooth patterns is set to be between 0.24 and 0.5 mm.

Preferably, the light absorption film stuck on the top of the light guide plate is matched with the length of the light guide plate.

Preferably, the buckle on the fixing frame corresponds to the card Kong Shuliang on the bottom shell, and is mutually clamped and fixed.

Preferably, the middle part all around the inner wall of fixed frame all is equipped with the baffle, the baffle cuts off fixed frame into two mutually independent fixed chambeies and fixed chamber down, it matches with the display screen to go up fixed chamber, fixed chamber and light guide plate overall dimension looks adaptation down.

Preferably, the cavity wall of the lower fixing cavity in the fixing frame, which is close to the lamp panel, is slightly lower than the cavity walls of the other three sides.

The utility model has the technical effects and advantages that:

the utility model improves the structural design, adopts the buckle type assembly to assemble the bottom shell and the light guide plate, is simpler and quicker during installation, effectively improves the production efficiency and reduces the cost; the thickness of the light guide plate in the design is thinner, so that the cost can be saved; the sawtooth line design is denser, and the income light is faster, and light diffusion effect is better, and the display screen shows the effect better, and luminance is more even.

Drawings

Fig. 1 is a schematic diagram of the overall structure of the present utility model.

Fig. 2 is a schematic structural view of a card hole in the present utility model.

Fig. 3 is a schematic structural view of a buckle in the present utility model.

Fig. 4 is a schematic view of a sawtooth pattern according to the present utility model.

Fig. 5 is a schematic structural view of a fixing frame, a partition plate and an upper fixing cavity in the present utility model.

Fig. 6 is a cross-sectional view of a fixing frame in the present utility model.

The reference numerals are: 1 bottom shell, 2 light guide plate, 3 lamp plate, 4 shading membrane, 5 draw-in holes, 6 buckle, 7 sawtooth line, 8 fixed frame, 9 baffle, 10 go up fixed chamber, 11 lower fixed chamber.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a display screen backlight structure as shown in fig. 1-6, includes drain pan 1, light guide plate 2, lamp plate 3, shading film 4, draw-in hole 5, buckle 6, sawtooth line 7, be equipped with light guide plate 2 in the drain pan 1 cavity, light guide plate 2 top is provided with lamp plate 3, light guide plate 2 is last to paste with the top that corresponds with lamp plate 3 has light-absorbing film 4, a plurality of draw-in holes 5 have all been seted up to the side surface of drain pan 1, the top of drain pan 1 cavity still is equipped with fixed frame 8, the side surface of fixed frame 8 is equipped with buckle 6 with the position that the draw-in hole 5 corresponds, the upper surface of light guide plate 2 is equipped with a plurality of sawtooth lines 7.

In some embodiments, the thickness of the light guide plate 2 is set to 1.28-1.32mm.

Further, the spacing between the sawtooth patterns 7 is set to be 0.24-0.5 mm.

Further, the light absorbing film 4 stuck on the top of the light guide plate 2 is matched with the length of the light guide plate 2.

Specifically, the number of the buckles 6 on the fixed frame 8 corresponds to the number of the clamping holes 5 on the bottom shell 1, and the buckles are mutually clamped and fixed; the middle parts around the inner wall of the fixed frame 8 are provided with a baffle plate 9, the baffle plate 9 partitions the fixed frame 8 into two mutually independent upper fixed cavities 10 and lower fixed cavities 11, the upper fixed cavities 10 are matched with the display screen, and the lower fixed cavities 11 are matched with the light guide plate 2 in overall size; the cavity wall of the lower fixing cavity 11 in the fixing frame 8, which is close to the lamp panel 3, is slightly lower than the cavity walls of the other three sides.

The working principle of the utility model is as follows:

because the clamping holes 5 are formed in the side surface of the bottom shell 1, the buckles 6 are arranged on one side of the light guide plate 2, and the assembly is simpler and faster during installation, the production efficiency is effectively improved, and the cost is reduced;

the thickness of the light guide plate 2 in the design is thinner, so that the cost can be saved;

the sawtooth pattern 7 is designed to be denser, light entering is faster, light diffusion effect is better, display effect of the display screen is better, and brightness is more uniform.

The last points to be described are: first, in the description of the present application, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims

1. A display screen backlight structure, includes drain pan (1), its characterized in that: the novel light guide plate is characterized in that a light guide plate (2) is arranged in a cavity of the bottom shell (1), a lamp plate (3) is arranged above the light guide plate (2), a light absorption film (4) is adhered to the top of the light guide plate (2) corresponding to the lamp plate (3), a plurality of clamping holes (5) are formed in the side surface of the bottom shell (1), a fixing frame (8) is further arranged above the cavity of the bottom shell (1), buckles (6) are arranged at positions, corresponding to the clamping holes (5), of the side surface of the fixing frame (8), and a plurality of sawtooth patterns (7) are formed in the upper surface of the light guide plate (2).

2. A display screen backlight structure according to claim 1, wherein: the thickness of the light guide plate (2) is set to be 1.28-1.32mm.

3. A display screen backlight structure according to claim 1, wherein: the spacing between the sawtooth patterns (7) is set to be 0.24-0.5 mm.

4. A display screen backlight structure according to claim 1, wherein: the light absorption film (4) stuck on the top of the light guide plate (2) is matched with the length of the light guide plate (2).

5. A display screen backlight structure according to claim 1, wherein: the buckles (6) on the fixed frame (8) correspond to the clamping holes (5) on the bottom shell (1) in number and are mutually clamped and fixed.

6. A display screen backlight structure according to claim 1, wherein: the light guide plate is characterized in that a partition plate (9) is arranged in the middle of the periphery of the inner wall of the fixed frame (8), the partition plate (9) partitions the fixed frame (8) into two mutually independent upper fixed cavities (10) and two mutually independent lower fixed cavities (11), the upper fixed cavities (10) are matched with the display screen, and the lower fixed cavities (11) are matched with the light guide plate (2) in overall size.

7. A display screen backlight structure according to claim 1, wherein: the cavity wall of a lower fixing cavity (11) in the fixing frame (8) close to the lamp panel (3) is slightly lower than the cavity walls of other three sides.