Anti-blue-light polarized backlight source of liquid crystal display screen

Abstract

The utility model relates to the technical field of liquid crystal display screen backlights, in particular to a liquid crystal display screen anti-blue-light polarized light backlight source which comprises a shell and a connecting device, a backlight source body is installed in the shell, a protective layer is arranged in the backlight source body and comprises an inner polarized light layer, a blue-light layer and an outer polarized light layer, and the connecting device is arranged on the surface of the shell. The connecting device comprises two mounting frames, the two mounting frames are located below the shell, the two sides of the shell are fixedly connected with connecting frames respectively, the surfaces of the mounting frames are fixedly connected with two cylinders, the cylinders are connected with the inner walls of the connecting frames in an inserted mode, and the inner walls of the mounting frames are connected with clamping pieces in a sliding mode. When the backlight source breaks down or needs to be upgraded, the backlight source can be rapidly disassembled for maintenance and upgrading, the maintenance time is greatly shortened, damage to the anti-blue-light polarized light backlight source caused by disassembly and assembly is reduced, and the overall usability of equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of backlights for liquid crystal displays, and particularly relates to an anti-blue light and polarized backlight for a liquid crystal display. Background Art

[0002] A liquid crystal display is a display technology widely used in various electronic devices. The backlight of a liquid crystal display is a component that provides illumination for the liquid crystal display, and it plays a crucial role in the display effect and quality of the display screen. With the development of technology, some existing backlights have the functions of anti-blue light and polarization. The anti-blue light function is mainly to reduce the potential harm of blue light to the eyes, and the polarization function helps to improve the display effect and visual experience.

[0003] The prior art such as the utility model with the publication number of CN207198511U, an anti-blue light liquid crystal display, overcomes the problems in the prior art that attaching an anti-blue light film on the surface of the liquid crystal display results in high product cost, reduced brightness of the liquid crystal display, and color difference. The structure of the utility model is that from bottom to top, each layer on the backlight of the display screen is an inner polarizer layer, an inner substrate glass layer, an ITO transparent electrode layer, a TFT layer, an inner alignment layer, a liquid crystal layer, an outer alignment layer, a color filter layer, an anti-blue light transparent optical adhesive layer, an outer substrate glass layer, and an outer polarizer layer. The utility model mainly uses an anti-blue light transparent optical adhesive to realize the bonding of the color filter and the substrate glass, so that the liquid crystal display not only has the effect of anti-blue light, but also can achieve low cost, does not increase the product thickness, and has little impact on the light transmittance of the product, solving the problems that the industry's method of anti-blue light is to attach an anti-blue light film or a glass film on the surface of the liquid crystal display, and the disadvantages of this method are high product cost, reduced brightness of the liquid crystal display, and easy generation of color difference.

[0004] In daily work, it is found that during the use of the existing anti-blue light and polarized backlights, they are usually installed by using bolts or adhesives. Using bolts requires specific tools for operation, which is time-consuming and laborious, and is not conducive to maintenance and replacement. Using adhesives is difficult to separate them intact, and it is easy to cause damage to the backlight or other components, thus resulting in the problem of inconvenient disassembly and assembly of the existing anti-blue light and polarized backlights. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the disadvantage of inconvenient disassembly and assembly in the prior art, and to propose an anti-blue light and polarized backlight for a liquid crystal display.

[0006] To achieve the above object, the present utility model adopts the following technical solutions: A liquid crystal display anti-blue light polarized backlight source, comprising a housing and a connecting device. A backlight body is installed in the housing, and a protective layer is provided in the backlight body. The protective layer includes an inner polarizing layer, a blue light layer, and an outer polarizing layer. The connecting device is arranged on the surface of the housing. The connecting device includes mounting brackets. The number of the mounting brackets is two. The two mounting brackets are arranged below the housing. Connecting brackets are respectively fixedly connected to both sides of the housing. Two cylinders are fixedly connected to the surface of the mounting bracket. The cylinders are inserted into the inner walls of the connecting brackets. A clamping member is slidably connected to the inner wall of the mounting bracket. A control spring is fixedly connected to one side of the clamping member corresponding to the inner wall of the connecting bracket. A clamping groove is formed on the surface of the cylinder. The clamping member is clamped with the inner wall of the clamping groove. Two stabilizing columns are fixedly connected to the inner wall of the connecting bracket. A control block is slidably connected to the surface of the stabilizing column. A pressing block is fixedly connected to the upper surface of the control block. The pressing block is slidably connected to the inner wall of the connecting bracket. An auxiliary component is arranged on the surface of the connecting bracket. Through the above components, during installation, the pressing block can be pushed. The pressing block drives the control block to squeeze the clamping member, and the control spring is stressed. Then, the cylinder is inserted onto the connecting bracket. When the pressing block is released, the control spring can drive the clamping member to be inserted into the clamping groove on the surface of the cylinder to complete the installation.

[0007] Preferably, the pressing block extends out of the connecting bracket, and the extended height is flush with the housing.

[0008] Preferably, a return spring is sleeved on the surface of the stabilizing column. The two ends of the return spring are respectively fixedly connected to the control block and the inner wall of the connecting bracket. Through the above components, the return spring can control the control block and the pressing block to reset.

[0009] Preferably, a guiding column is fixedly connected to the inner wall of the connecting bracket. The guiding column is slidably connected to the inner wall of the clamping member. The control spring is sleeved on the guiding column. Through the above components, the guiding column can respectively guide the control spring and the clamping member to improve stability.

[0010] Preferably, one side of the control block is arranged in an inclined plane, and the contact surface of the clamping member is an arc surface. Through the above components, when the control block squeezes the clamping member, the control block mainly squeezes the arc surface of the clamping member through the inclined plane of the control block to achieve the control operation.

[0011] Preferably, the auxiliary component includes a connecting plate. The connecting plate is fixedly connected to the surfaces of the two connecting brackets. A protective sleeve is fixedly connected to the surface of the connecting bracket. The protective sleeve is for the insertion of a circuit. Through the above components, when maintaining the backlight body, the circuit can be inserted into the protective sleeve to reduce the damage to the circuit during maintenance.

[0012] Preferably, two sponge blocks are fixedly connected to the inner wall of the protective sleeve. Through the above components, when the circuit is inserted into the protective sleeve, the sponge blocks can squeeze the circuit to play a binding role.

[0013] Compared with the prior art, the advantages and positive effects of the present utility model are as follows:

[0014] 1. In the present utility model, by providing a connection device, when the backlight fails or needs to be upgraded, the backlight can be quickly disassembled for maintenance and upgrade, greatly shortening the maintenance time, reducing the damage to the anti-blue light polarized backlight caused by disassembly and assembly, and improving the overall usability of the device.

[0015] 2. In the present utility model, by providing an auxiliary component, the joints of the anti-blue light polarized backlight can be protected, reducing the damage caused by other objects to the joints during the maintenance process, resulting in the situation where the device cannot be used normally. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 FIG. 1 is a three-dimensional structural schematic diagram of an anti-blue light polarized backlight for a liquid crystal display screen proposed by the present utility model;

[0017] Figure 2 FIG. 2 is a sectional structural schematic diagram of an anti-blue light polarized backlight for a liquid crystal display screen proposed by the present utility model;

[0018] Figure 3 FIG. 3 is a structural schematic diagram of a connection device of an anti-blue light polarized backlight for a liquid crystal display screen proposed by the present utility model;

[0019] Figure 4 FIG. 4 is a partially sectional structural schematic diagram of a connection device of an anti-blue light polarized backlight for a liquid crystal display screen proposed by the present utility model;

[0020] Figure 5 FIG. 5 is a structural schematic diagram of an auxiliary component of an anti-blue light polarized backlight for a liquid crystal display screen proposed by the present utility model.

[0021] LEGEND DESCRIPTION:

[0022] 1. Housing; 2. Backlight body; 3. Protective layer; 31. Inner polarizing layer; 32. Blue light layer; 33. Outer polarizing layer; 4. Circuit; 5. Connection device; 51. Connection frame; 52. Mounting frame; 53. Pressing block; 54. Auxiliary component; 541. Connecting plate; 542. Protective sleeve; 543. Sponge block; 55. Cylinder; 56. Control block; 57. Stabilizing column; 58. Return spring; 59. Guide post; 510. Control spring; 511. Card slot; 512. Card member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Please refer to Figures 1 - 5, the present utility model provides a technical solution: a liquid crystal display anti-blue light polarized backlight source, including a housing 1 and a connecting device 5. A backlight body 2 is installed in the housing 1, and a protective layer 3 is provided in the backlight body 2. The protective layer 3 includes an inner polarizing layer 31, a blue light layer 32, and an outer polarizing layer 33. The connecting device 5 is disposed on the surface of the housing 1.

[0024] Specifically, the connecting device 5 includes mounting brackets 52. The number of mounting brackets 52 is two. The two mounting brackets 52 are disposed below the housing 1. Connecting brackets 51 are respectively fixedly connected to both sides of the housing 1. Two cylinders 55 are fixedly connected to the surface of the mounting bracket 52. The cylinders 55 are inserted into the inner wall of the connecting bracket 51. A clamping member 512 is slidably connected to the inner wall of the mounting bracket 52. A control spring 510 is fixedly connected to the side of the clamping member 512 corresponding to the inner wall of the connecting bracket 51. A clamping groove 511 is formed on the surface of the cylinder 55. The clamping member 512 is clamped with the inner wall of the clamping groove 511. Two stabilizing columns 57 are fixedly connected to the inner wall of the connecting bracket 51. A control block 56 is slidably connected to the surface of the stabilizing column 57. A pressing block 53 is fixedly connected to the upper surface of the control block 56. The pressing block 53 is slidably connected to the inner wall of the connecting bracket 51. An auxiliary assembly 54 is disposed on the surface of the connecting bracket 51.

[0025] In this implementation: during installation, the pressing block 53 can be pushed. The pressing block 53 drives the control block 56 to squeeze the clamping member 512, and the control spring 510 is stressed. Subsequently, the cylinder 55 is inserted into the connecting bracket 51. When the pressing block 53 is released, the control spring 510 can drive the clamping member 512 to be clamped into the clamping groove 511 on the surface of the cylinder 55 to complete the installation.

[0026] Specifically, the pressing block 53 extends out of the connecting bracket 51, and the extended height is flush with the housing 1.

[0027] Specifically, a return spring 58 is sleeved on the surface of the stabilizing column 57. The two ends of the return spring 58 are respectively fixedly connected to the control block 56 and the inner wall of the connecting bracket 51. The return spring 58 can control the reset of the control block 56 and the pressing block 53.

[0028] Specifically, a guiding column 59 is fixedly connected to the inner wall of the connecting bracket 51. The guiding column 59 is slidably connected to the inner wall of the clamping member 512. The control spring 510 is sleeved on the guiding column 59.

[0029] In this implementation: the guiding column 59 can respectively guide the control spring 510 and the clamping member 512 to improve stability.

[0030] Specifically, one side of the control block 56 is inclined. The contact surface of the clamping member 512 is an arc surface. When the control block 56 squeezes the clamping member 512, the arc surface of the clamping member 512 is mainly squeezed by the inclined surface of the control block 56 to achieve the control operation.

[0031] Specifically, the auxiliary component 54 includes a connecting plate 541. The connecting plate 541 is fixedly connected to the surfaces of the two connecting frames 51. A protective sleeve 542 is fixedly connected to the surface of the connecting frame 51. The protective sleeve 542 is for the insertion of the circuit 4. When maintaining the backlight body 2, the circuit 4 can be inserted into the protective sleeve 542 to reduce the damage to the circuit 4 during maintenance.

[0032] Specifically, two sponge blocks 543 are fixedly connected to the inner wall of the protective sleeve 542.

[0033] In this implementation: After the circuit 4 is inserted into the protective sleeve 542, the sponge blocks 543 can squeeze the circuit 4 to play a role in restraint.

[0034] Working principle: When installation is required, first push the pressing block 53. The pressing block 53 can drive the control block 56 to move, and the return spring 58 is stressed. The inclined surface of the control block 56 squeezes the arc surface of the clamping member 512. Subsequently, the clamping member 512 moves in the guide post 59, and the control spring 510 is stressed. When pressed to a certain position, the cylinder 55 on the mounting bracket 52 is inserted into the connecting frame 51. Then release the pressing block 53. The return spring 58 and the control spring 510 release their elastic forces simultaneously. The return spring 58 drives the control block 56 and the pressing block 53 to reset, and the control spring 510 drives the clamping member 512 to reset, so that the clamping member 512 is stuck into the card slot 511 on the surface of the cylinder 55, and installation can be achieved. When the backlight body 2 is removed for maintenance, the circuit 4 can be inserted into the protective sleeve 542. The circuit 4 first squeezes the sponge blocks 543. When the head of the circuit 4 is completely inserted into the protective sleeve 542, the sponge blocks 543 recover and restrain the circuit 4, so as to protect the head of the circuit 4 during maintenance.

Claims

1. A blue light protection polarized backlight source for a liquid crystal display screen, comprising a housing (1) and a connecting device (5), characterized in that: A backlight source (2) is installed in the shell (1), a protective layer (3) is provided in the backlight source (2), the protective layer (3) comprises an inner polarizing layer (31), a blue light layer (32), and an outer polarizing layer (33), the connecting device (5) is arranged on the surface of the shell (1), the connecting device (5) comprises a mounting frame (52), there are two mounting frames (52), the two mounting frames (52) are arranged below the shell (1), the two sides of the shell (1) are respectively fixedly connected with the connecting frames (51), the surface of the mounting frame (52) is fixedly connected with two cylinders (55), the cylinders (55) are plugged into the inner wall of the connecting frame (51), and the mounting frame (52) is fixedly connected to the inner wall of the connecting frame (51). The inner wall of the frame (52) is slidably connected with a clamping piece (512), and a control spring (510) is fixedly connected to the side of the clamping piece (512) corresponding to the inner wall of the connecting frame (51). A clamping groove (511) is provided on the surface of the cylinder (55), and the clamping piece (512) is clamped with the inner wall of the clamping groove (511). Two stabilizing columns (57) are fixedly connected to the inner wall of the connecting frame (51), and a control block (56) is slidably connected to the surface of the stabilizing column (57). A pressing block (53) is fixedly connected to the upper surface of the control block (56), and the pressing block (53) is slidably connected to the inner wall of the connecting frame (51). An auxiliary component (54) is arranged on the surface of the connecting frame (51).

2. The anti-blue light polarized backlight source for a liquid crystal display according to claim 1, characterized in that: The pressing block (53) extends out from the connecting frame (51) and its extending height is flush with the housing (1).

3. The anti-blue light polarized backlight source for a liquid crystal display according to claim 1, characterized in that: A return spring (58) is sleeved on the surface of the stabilizing column (57), and two ends of the return spring (58) are respectively fixedly connected to the control block (56) and the inner wall of the connecting frame (51).

4. The anti-blue light polarized backlight source for a liquid crystal display according to claim 1, characterized in that: A guide column (59) is fixedly connected to the inner wall of the connecting frame (51), the guide column (59) is slidably connected to the inner wall of the clamp (512), and the control spring (510) is sleeved on the guide column (59).

5. The anti-blue light polarized backlight source for a liquid crystal display according to claim 1, characterized in that: One side of the control block (56) is arranged in an inclined surface, and the contact surface of the clamping member (512) is an arc-shaped surface.

6. The anti-blue light polarized backlight source for a liquid crystal display according to claim 1, characterized in that: The auxiliary component (54) comprises a connecting plate (541), the connecting plate (541) being fixedly connected to the surfaces of two connecting frames (51), the surfaces of the connecting frames (51) being fixedly connected with a protective sleeve (542), the protective sleeve (542) being used for inserting the line (4).

7. The anti-blue light polarized backlight source for a liquid crystal display according to claim 6, characterized in that: Two sponge blocks (543) are fixedly connected to the inner wall of the protective cover (542).

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