Display backlight light leakage prevention structure

Abstract

The utility model discloses a display backlight light leakage prevention structure, which relates to the technical field of backlight and comprises an outer frame, fixing plates are fixedly connected to two sides of the inner wall of the outer frame, a liquid crystal screen is mounted between the two fixing plates, an optical component is arranged in the outer frame, a rectangular groove is formed in the left side in the outer frame, and a reflector is arranged in the rectangular groove. An inclined block is fixedly installed at the top end of the reflector, a first spring is fixedly connected between the reflector and the rectangular groove, a limiting assembly is arranged on the right side of the interior of the outer frame and comprises two supporting plates, the two supporting plates are fixedly installed at the front end and the rear end of the right side of the interior of the outer frame respectively, and light source plates are slidably installed in the two supporting plates in a limiting mode; after the light source plate is inserted into the bottom of the outer frame, the second springs restore to the original shape to drive the limiting blocks to move out of the limiting grooves, then the limiting blocks are clamped to the top end of the light source plate, the light source plate is limited, and the situation that the light source plate shakes in the transportation process of the displayer is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of backlights, and particularly relates to a light leakage prevention structure for a display backlight. Background Art

[0002] A backlight is a light source located behind a liquid crystal display. Its lighting effect will directly affect the visual effect of the liquid crystal display module. The liquid crystal display itself does not emit light. It shows graphics or the result of its modulation of light.

[0003] A light leakage prevention structure for a backlight disclosed in Chinese Patent CN219349320U includes a rubber frame, a frame, and a liquid crystal screen. The rubber frame is located inside the frame. A reflective layer is provided on the inner wall of the rubber frame. An upper edge is provided on the upper surface of the rubber frame. A limit card slot is provided on the inner wall of the upper edge. A limit card board is provided on the outer surface of the liquid crystal screen, and the limit card board is located inside the limit card slot. An optical component is provided inside the rubber frame.

[0004] The above-mentioned existing light leakage prevention mechanism has the following problems when in use: When this light leakage prevention structure is in use, the annular plate on the light source board is inserted into the annular card slot to install the light source board. There is no fixed limit structure for the light source board, which easily causes the light source board to shake up and down in the slot during the transportation of the display, resulting in damage.

[0005] To solve the above problems, the utility model proposes a light leakage prevention structure for a display backlight. Content of the Utility Model

[0006] To solve the problems in the background art, the utility model proposes a light leakage prevention structure for a display backlight.

[0007] To achieve the above object, the utility model provides the following technical solution: A light leakage prevention structure for a display backlight includes an outer frame. Fixedly connected to both sides of the inner wall of the outer frame are fixing plates. A liquid crystal screen is installed between the two fixing plates. An optical component is provided inside the outer frame. A rectangular slot is opened on the left side inside the outer frame. A reflective plate is provided inside the rectangular slot.

[0008] The top end of the reflective plate is fixedly installed with an inclined block. A first spring is fixedly connected between the reflective plate and the rectangular slot. A limit component is provided on the right side inside the outer frame. The limit component includes two support plates. The two support plates are respectively fixedly installed at the front and rear ends on the right side inside the outer frame. A light source board is installed in the two support plates in a limited sliding manner.

[0009] Limit slots are opened on the opposite faces of the two support plates corresponding to the top end position of the light source board. Clamping components are provided inside the limit slots.

[0010] Preferably, mounting grooves are formed on the opposite surfaces of the two fixing plates. Mounting plates are fixedly installed on both sides of the liquid crystal screen, and the mounting plates are slidably inserted into the mounting grooves.

[0011] Preferably, fixing rods are rotatably installed on one side of the fixing plates corresponding to the optical components. Light blocking plates are fixedly connected to the fixing rods. A torsion spring is fixedly connected between the light blocking plates and the fixing plates. The light blocking plates are correspondingly arranged at the connection between the liquid crystal screen and the fixing plates.

[0012] Preferably, a prism plate is fixedly installed on one side of the reflector corresponding to the optical component.

[0013] Preferably, the clamping component includes a limit block. The limit block is slidably installed inside the limit groove, and a second spring is fixedly installed inside the limit groove;

[0014] The other end of the second spring is fixedly connected to the limit block. The end of the limit block extending out of the limit groove is arranged as an inclined surface. A through groove is formed at the position corresponding to the limit block at the top end of the support plate. A moving rod is slidably installed inside the through groove, and the bottom end of the moving rod is fixedly connected to the limit block.

[0015] Preferably, an anti-blue light filter film is fixedly installed on the front side of the optical component.

[0016] Beneficial Effects

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. For the light leakage prevention structure of the display backlight source, after the light source board is inserted into the bottom of the outer frame, the second spring returns to its original state and drives the limit block to move out of the limit groove. Then, the limit block is clamped on the top end of the light source board to limit the light source board, avoiding the situation of the light source board shaking during the transportation of the display.

[0019] 2. For the light leakage prevention structure of the display backlight source, by setting the fixing rod and the light blocking plate, the connection between the fixing plate and the liquid crystal screen is blocked, avoiding light leakage from the gap between the fixing plate and the liquid crystal screen, and improving the light shielding property of the device. Description of the Drawings

[0020] The following further illustrates the present utility model in conjunction with the drawings and embodiments:

[0021] Figure 1 is the overall structural schematic diagram of the present utility model,

[0022] Figure 2 is the partial cross-sectional structural schematic diagram of the present utility model,

[0023] Figure 3 is the partial sectional structural schematic diagram of the present utility model,

[0024] Figure 4 Structural schematic diagram of the limit component of the present utility model.

[0025] Reference numerals: 1, outer frame; 2, fixed plate; 3, liquid crystal screen; 4, optical component; 5, rectangular groove; 6, reflector; 7, inclined block; 8, first spring; 9, support plate; 10, light source plate; 11, limit groove; 12, mounting plate; 13, fixed rod; 14, light blocking plate; 15, prism plate; 16, limit block; 17, second spring; 18, through groove; 19, moving rod. Specific embodiments

[0026] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it cannot be construed as a limitation on the protection scope of the present utility model.

[0027] Please refer to Figures 1-4 , the present utility model provides a technical solution: a light leakage prevention structure for a display backlight, including an outer frame 1, fixed plates 2 are fixedly connected to both sides of the inner wall of the outer frame 1, a liquid crystal screen 3 is installed between the two fixed plates 2, an optical component 4 is arranged inside the outer frame 1, a rectangular groove 5 is opened on the left side inside the outer frame 1, and a reflector 6 is arranged inside the rectangular groove 5;

[0028] An inclined block 7 is fixedly installed at the top end of the reflector 6, a first spring 8 is fixedly connected between the reflector 6 and the rectangular groove 5, a limit component is arranged on the right side inside the outer frame 1, and the limit component includes two support plates 9, the two support plates 9 are respectively fixedly installed at the front and rear ends on the right side inside the outer frame 1, and a light source plate 10 is installed in the two support plates 9 in a limited sliding manner;

[0029] Limit grooves 11 are opened on the opposite surfaces of the two support plates 9 corresponding to the top end position of the light source plate 10, and clamping components are arranged inside the limit grooves 11.

[0030] Further, installation grooves are opened on the opposite surfaces of the two fixed plates 2, mounting plates 12 are fixedly installed on both sides of the liquid crystal screen 3, and the mounting plates 12 are slidably inserted into the installation grooves.

[0031] Further, fixed rods 13 are rotatably installed on one side of the fixed plates 2 corresponding to the optical component 4, light blocking plates 14 are fixedly connected to the fixed rods 13, torsion springs are fixedly connected between the light blocking plates 14 and the fixed plates 2, and the light blocking plates 14 are correspondingly arranged at the connection between the liquid crystal screen 3 and the fixed plates 2.

[0032] Further, a prism plate 15 is fixedly installed on one side of the reflector 6 corresponding to the optical component 4.

[0033] Further, the clamping component includes a limit block 16 which is slidably installed inside the limit groove 11. A second spring 17 is fixedly installed inside the limit groove 11, and the other end of the second spring 17 is fixedly connected to the limit block 16. One end of the limit block 16 extending out of the limit groove 11 is provided with an inclined surface. A through groove 18 is formed at the top of the support plate 9 corresponding to the position of the limit block 16. A moving rod 19 is slidably installed inside the through groove 18, and the bottom end of the moving rod 19 is fixedly connected to the limit block 16.

[0034] Further, an anti-blue light filter film is fixedly installed on the front side of the optical component 4.

[0035] When installing the optical component 4, by providing the inclined block 7, under the action of the inclined surface of the inclined block 7, it is convenient for the optical component 4 to be inserted into the outer frame 1. And during the downward movement of the optical component 4, the inclined block 7 and the reflector 6 are pushed, thereby causing the first spring 8 to contract. After the optical component 4 is completely inserted into the outer frame 1, under the elastic action of the first spring 8, the inclined block 7 and the reflector 6 are pushed to abut against one side of the optical component 4, making the installation of the optical component 4 more stable and improving the stability of the device.

[0036] Insert the light source board 10 between the two support plates 9. The light source board 10 pushes the two limit blocks 16 into the corresponding limit grooves 11 inside, and causes the second spring 17 to contract. After the light source board 10 is inserted into the bottom of the outer frame 1, the second spring 17 returns to its original state and drives the limit blocks 16 to move out of the limit grooves 11 inside, so that the limit blocks 16 are clamped on the top of the light source board 10 to limit the light source board 10, avoiding the situation that the light source board 10 shakes during the transportation of the display, and further improving the stability of the device.

[0037] By providing the fixed rod 13 and the light blocking plate 14, the connection between the fixed plate 2 and the liquid crystal screen 3 is blocked, preventing light from leaking through the gap between the fixed plate 2 and the liquid crystal screen 3, and improving the light shielding property of the device.

[0038] Working principle:

[0039] When installing the optical component 4, by providing the inclined block 7, under the action of the inclined surface of the inclined block 7, it is convenient for the optical component 4 to be inserted into the outer frame 1. And during the downward movement of the optical component 4, the inclined block 7 and the reflector 6 are pushed, thereby causing the first spring 8 to contract. After the optical component 4 is completely inserted into the outer frame 1, under the elastic action of the first spring 8, the inclined block 7 and the reflector 6 are pushed to abut against one side of the optical component 4, making the installation of the optical component 4 more stable.

[0040] Insert the light source board 10 between the two support plates 9. The light source board 10 pushes the two limit blocks 16 into the corresponding limit grooves 11, causing the second spring 17 to contract. After the light source board 10 is inserted into the bottom of the outer frame 1, the second spring 17 returns to its original state, driving the limit blocks 16 out of the limit grooves 11, so that the limit blocks 16 are clamped at the top of the light source board 10 to limit the light source board 10 and prevent the light source board 10 from shaking during the transportation of the display.

[0041] By providing the fixing rod 13 and the light shielding plate 14, the connection between the fixing plate 2 and the liquid crystal screen 3 is shielded to prevent light from leaking through the gap between the fixing plate 2 and the liquid crystal screen 3, improving the light shielding property of the device.

[0042] The above has described the embodiments of the present invention in detail with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A display backlight source anti-light leakage structure, comprising an outer frame (1), characterized in that: Both sides of the inner wall of the outer frame (1) are fixedly connected with fixing plates (2), a liquid crystal screen (3) is installed between the two fixing plates (2), and an optical component (4) is arranged inside the outer frame (1); A rectangular groove (5) is provided on the left side of the interior of the outer frame (1), a reflector (6) is provided inside the rectangular groove (5), an inclined block (7) is fixedly installed on the top of the reflector (6), a first spring (8) is fixedly connected between the reflector (6) and the rectangular groove (5), and a limit assembly is provided on the right side of the interior of the outer frame (1), the limit assembly comprises two support plates (9), and the two support plates (9) are respectively fixedly installed on the front and rear ends of the right side of the interior of the outer frame (1); The light source board (10) is slidably mounted inside the two support plates (9), and limiting grooves (11) are provided on the top positions of the light source boards (10) corresponding to the opposite surfaces of the two support plates (9), and the limiting grooves (11) are provided with snap-fit ​​components inside.

2. The display backlight source anti-light leakage structure according to claim 1, characterized in that: Mounting grooves are provided on the opposite surfaces of the two fixing plates (2), and mounting plates (12) are fixedly mounted on both sides of the liquid crystal screen (3); The mounting plate (12) is slidably inserted into the mounting groove.

3. The display backlight source anti-light leakage structure according to claim 2, characterized in that: A fixing rod (13) is rotatably mounted on one side of the fixing plate (2) corresponding to the optical component (4), and a light blocking plate (14) is fixedly connected to the fixing rod (13); A torsion spring is fixedly connected between the light shielding plate (14) and the fixing plate (2), and the light shielding plate (14) is correspondingly arranged at the connection between the liquid crystal screen (3) and the fixing plate (2).

4. The display backlight source anti-light leakage structure according to claim 3, characterized in that: A prism plate (15) is fixedly mounted on one side of the reflective plate (6) corresponding to the optical component (4).

5. The display backlight source anti-light leakage structure according to claim 4, characterized in that: The clamping assembly comprises a limit block (16), the limit block (16) is slidably mounted inside the limit groove (11), a second spring (17) is fixedly mounted inside the limit groove (11), and the other end of the second spring (17) is fixedly connected to the limit block (16); One end of the limit block (16) extending out of the limit groove (11) is provided with an inclined surface, a through groove (18) is provided at the top end of the support plate (9) corresponding to the position of the limit block (16), and a moving rod (19) is slidably installed inside the through groove (18); The bottom end of the moving rod (19) is fixedly connected to the limiting block (16).

6. The display backlight source anti-light leakage structure according to claim 5, characterized in that: A blue light protection filter is fixedly mounted on the front side of the optical component (4).

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