Backlight source structure of display

Abstract

The utility model relates to the technical field of flat-panel displays, in particular to a backlight source structure of a display, which comprises a bottom frame, first grooves are arranged on the left side and the right side of the bottom frame, first screws are in threaded connection with the interiors of the first grooves, a laminate is clamped in the bottom frame, a clamping frame is lapped on the top of the laminate, and the clamping frame is in threaded connection with the interiors of the first screws. First threaded holes are formed in the left side and the right side of the clamping frame correspondingly, and the first screws are in threaded connection with the interiors of the first threaded holes. The utility model has the advantages that when the adhesive tape is seriously melted and is difficult to clean during maintenance, the second screw in the second groove can be rotationally taken down, the sliding plate in the sliding groove can be pulled out by buckling the second groove with fingers, and the independent and detachable sliding plate can be conveniently replaced, so that the purpose of convenience in use is achieved; the clamping frame can press and fix the laminate at the bottom, the clamping frame can be conveniently and stably detached in the follow-up process through a screw installation mode, the bottom frame and the clamping frame are prevented from being damaged to the maximum extent, and the purpose of protecting the bottom frame and the clamping frame is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flat panel displays, in particular to a backlight structure of a display. Background Art

[0002] Liquid crystal displays are widely used in the field of display technology. The display of liquid crystals is usually realized by forming an electric field between two conductive glasses to drive the liquid crystals located between the conductive glasses. However, liquid crystals themselves cannot emit light, so an external light source is needed to truly realize the display function, usually by adding a backlight structure of LEDs or other external light sources.

[0003] The existing backlight structure is composed of a bottom frame, a light enhancement film, a diffusion film, a light guide plate and a lamp strip. The light enhancement film, the diffusion film, the light guide plate and the lamp strip are fixed inside the bottom frame through a pressing strip, and the pressing strip is clamped with the bottom frame. Although this method can stably fix the film and the plate inside the bottom frame, multiple card slots inside the pressing strip and multiple card blocks at the edge of the bottom frame need to be clamped, which is easy to damage the card strip and the bottom frame during disassembly. In addition, a rubber strip is required to bond a circuit board or a control board to the back of the bottom frame. Once the rubber strip is melted by high temperature, it will be very difficult to repair and disassemble. Summary of the Utility Model

[0004] The purpose of the utility model aims to solve at least one of the technical defects.

[0005] The purpose of the utility model is to overcome the shortcomings of the prior art, solve the problems mentioned in the background art, and provide a backlight structure of a display.

[0006] The purpose of the utility model is realized through the following technical solutions: A backlight structure of a display, including a bottom frame, first grooves are respectively opened on the left and right sides of the bottom frame, first screws are threadedly connected inside the first grooves, a layer board is clamped inside the bottom frame, a card frame is lapped on the top of the layer board, first threaded holes are respectively opened on the left and right sides of the card frame, and the first screws are threadedly connected inside the first threaded holes;

[0007] A sliding groove is opened on one side of the back of the bottom frame, a sliding plate is slidably connected inside the sliding groove, a second threaded hole is opened at one end of the bottom frame close to the sliding groove, a second groove is opened on one side of the sliding plate, and a second screw is threadedly connected inside the second groove, and the second screw is threadedly connected inside the second groove.

[0008] Preferably, finger grooves are respectively opened on the front and back sides of the bottom frame, the finger grooves are rectangular grooves, and the height of the finger grooves is adapted to the thickness of the card frame.

[0009] By adopting the above technical solutions, the setting of the finger grooves facilitates taking out the card frame from the inside of the bottom frame with fingers.

[0010] Preferably, the first groove is a circular groove, the depth of the first groove is adapted to the thickness of the head of the first screw, and the size of the first threaded hole is adapted to the size of the first screw.

[0011] By adopting the above technical solution, the first groove can hide the head of the first screw inside it.

[0012] Preferably, the number of the first threaded holes is four, and the four first threaded holes are respectively located at the two corners on the left and right sides of the card frame. The position of the first threaded hole corresponds to the position of the first screw.

[0013] By adopting the above technical solution, the card frame and the bottom frame can be connected into one body by the first screw.

[0014] Preferably, the sliding groove is a T-shaped groove. One end of the sliding groove is in a closed state. The length of the sliding plate is less than the length of the bottom frame, and the top surface height of the sliding plate is the same as the top surface height of the bottom frame.

[0015] By adopting the above technical solution, the connection between the sliding plate and the bottom frame can be made more stable by means of the sliding groove. A rubber strip can be bonded to the top of the sliding plate. Even if the rubber strip melts, the sliding plate can be removed for replacement during maintenance.

[0016] Preferably, the second groove is a circular groove, the depth of the second groove is adapted to the thickness of the head of the second screw, and the size and position of the second threaded hole correspond to the position of the second screw.

[0017] By adopting the above technical solution, the second groove can hide the head of the second screw, and the second screw can connect the sliding plate and the bottom frame into one body.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. For the backlight structure of the display, by providing a card frame, the top of the laminate is lapped with the card frame. First threaded holes are provided on both the left and right sides of the card frame. The first screw is threadedly connected inside the first threaded hole. During use, the laminate composed of the brightening film, the diffusion film, and the light guide plate is placed inside the bottom frame, and then the card frame is snapped into the bottom frame. The bottom frame and the card frame can be connected into one body by the first screw. The card frame can press and fix the bottom laminate. The screw installation method can facilitate the subsequent stable disassembly of the card frame, and can avoid damaging the bottom frame and the card frame to the greatest extent, achieving the purpose of protecting the bottom frame and the card frame;

[0020] 2. The backlight structure of the display. By providing a sliding plate, a chute is formed on one side of the back of the bottom frame. The sliding plate is slidably connected inside the chute. The rubber strip can be adhered to the surface of the sliding plate. During maintenance, when the rubber strip is severely melted and difficult to clean, the second screw in the second groove can be rotated and removed, and the sliding plate inside the chute can be pulled outwards by holding the second groove with fingers. The independently detachable sliding plate is convenient for replacement, achieving the purpose of easy use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural view of the present utility model;

[0022] Figure 2 is an exploded schematic view of the present utility model;

[0023] Figure 3 is a schematic installation structure view of the sliding plate of the present utility model;

[0024] Figure 4 is a schematic structural view of the chute of the present utility model.

[0025] In the figure: 1 - bottom frame, 2 - first groove, 3 - first screw, 4 - laminate, 5 - card frame, 6 - first threaded hole, 7 - chute, 8 - sliding plate, 9 - second threaded hole, 10 - second groove, 11 - second screw, 12 - finger groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Additional aspects and advantages of the present utility model will be further given in the following description in conjunction with the drawings, and some will become obvious from the following description, or be understood through the practice of the present utility model.

[0027] As Figure 1-2 shown, a backlight structure of a display includes a bottom frame 1. First grooves 2 are provided on both the left and right sides of the bottom frame 1. First screws 3 are threadedly connected inside the first grooves 2. A laminate 4 is snap - connected inside the bottom frame 1. A card frame 5 is lapped on the top of the laminate 4. First threaded holes 6 are provided on both the left and right sides of the card frame 5. The first screws 3 are threadedly connected inside the first threaded holes 6.

[0028] Through the above - mentioned arrangement, during use, the laminate 4 composed of a light - enhancing film, a diffusion film, and a light - guiding plate is placed inside the bottom frame 1, and then the card frame 5 is snapped into the bottom frame 1. The bottom frame 1 and the card frame 5 can be connected into one body by the first screws 3. The card frame 5 can press and fix the laminate 4 at the bottom. The method of screw installation is convenient for subsequent stable disassembly of the card frame 5, maximizing the avoidance of damage to the bottom frame 1 and the card frame 5, achieving the purpose of protecting the bottom frame 1 and the card frame 5;

[0029] As Figure 3-4As shown in the figure, a chute 7 is provided on one side of the back of the bottom frame 1. A sliding plate 8 is slidably connected inside the chute 7. A second threaded hole 9 is provided at one end of the bottom frame 1 close to the chute 7. A second groove 10 is provided on one side of the sliding plate 8. A second screw 11 is threadedly connected inside the second groove 10, and the second screw 11 is threadedly connected inside the second groove 10;

[0030] With the above settings, during maintenance, when the adhesive tape melts severely and is difficult to clean, the second screw 11 in the second groove 10 can be rotated and removed. By finger-hooking the second groove 10, the sliding plate 8 inside the chute 7 can be pulled outwards. The independently detachable sliding plate 8 is convenient for replacement, achieving the purpose of convenient use;

[0031] As a preferred technical solution of the present invention, finger grooves 12 are provided on both the front and rear sides of the bottom frame 1. The finger grooves 12 are rectangular grooves, and the height of the finger grooves 12 is adapted to the thickness of the card frame 5.

[0032] As a preferred technical solution of the present invention, the first groove 2 is a circular groove, the depth of the first groove 2 is adapted to the thickness of the head of the first screw 3, and the size of the first threaded hole 6 is adapted to the size of the first screw 3.

[0033] As a preferred technical solution of the present invention, the number of the first threaded holes 6 is four. The four first threaded holes 6 are respectively located at the two corners on the left and right sides of the card frame 5, and the positions of the first threaded holes 6 correspond to the positions of the first screws 3.

[0034] As a preferred technical solution of the present invention, the chute 7 is a T-shaped groove. One end of the chute 7 is in a closed state. The length of the sliding plate 8 is less than the length of the bottom frame 1, and the top surface height of the sliding plate 8 is the same as the top surface height of the bottom frame 1.

[0035] As a preferred technical solution of the present invention, the second groove 10 is a circular groove, the depth of the second groove 10 is adapted to the thickness of the head of the second screw 11, and the size and position of the second threaded hole 9 correspond to the position of the second screw 11.

[0036] The working process of the present invention is as follows:

[0037] S1. Place the laminate 4 composed of the brightness enhancement film, diffusion film, and light guide plate into the inside of the bottom frame 1, and snap the card frame 5 into the inside of the bottom frame 1;

[0038] S2. The bottom frame 1 and the card frame 5 can be connected into one body through the first screws 3. The card frame 5 can press and fix the laminate 4 at the bottom. The screw installation method is convenient for subsequent stable disassembly of the card frame 5;

[0039] S3. When the adhesive tape melts severely and is difficult to clean, the second screw 11 in the second groove 10 can be rotated and removed;

[0040] S4. Just by hooking the finger into the second groove 10, the slide plate 8 inside the chute 7 can be pulled outwards. The independently detachable slide plate 8 is convenient for replacement.

[0041] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A backlight structure of a display, characterized in that: It includes a bottom frame (1). First grooves (2) are provided on both the left and right sides of the bottom frame (1). A first screw (3) is threadedly connected inside the first groove (2). A laminate (4) is snap-fitted inside the bottom frame (1). A card frame (5) is lapped on the top of the laminate (4). First threaded holes (6) are provided on both the left and right sides of the card frame (5). The first screw (3) is threadedly connected inside the first threaded hole (6). A chute (7) is provided on one side of the back of the bottom frame (1). A sliding plate (8) is slidably connected inside the chute (7). A second threaded hole (9) is provided at one end of the bottom frame (1) close to the chute (7). A second groove (10) is provided on one side of the sliding plate (8). A second screw (11) is threadedly connected inside the second groove (10). The second screw (11) is threadedly connected inside the second groove (10).

2. The backlight structure of a display according to claim 1, wherein: Finger grooves (12) are provided on both the front and back sides of the bottom frame (1). The finger grooves (12) are rectangular grooves. The height of the finger grooves (12) is adapted to the thickness of the card frame (5).

3. The backlight structure of a display according to claim 1, wherein: The first groove (2) is a circular groove. The depth of the first groove (2) is adapted to the thickness of the head of the first screw (3). The size of the first threaded hole (6) is adapted to the size of the first screw (3).

4. The backlight structure of a display according to claim 1, wherein: The number of the first threaded holes (6) is four. The four first threaded holes (6) are respectively located at the two corners on both the left and right sides of the card frame (5). The position of the first threaded hole (6) corresponds to the position of the first screw (3).

5. The backlight structure of a display according to claim 1, characterized in that: The chute (7) is a T-shaped groove. One end of the chute (7) is in a closed state. The length of the sliding plate (8) is less than the length of the bottom frame (1). The top surface height of the sliding plate (8) is the same as the top surface height of the bottom frame (1).

6. The backlight structure of a display according to claim 1, characterized in that: The second groove (10) is a circular groove. The depth of the second groove (10) is adapted to the thickness of the head of the second screw (11). The size and position of the second threaded hole (9) correspond to the position of the second screw (11).

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