Modularized backlight structure for LCD (Liquid Crystal Display) screen

Abstract

The utility model relates to the technical field of backlight mechanisms, and discloses a modularized backlight structure for an LCD (liquid crystal display) screen, which comprises a pressing plate, the pressing plate is pressed to drive a support column and a rubber sealing plate to move towards the position of a first spring, in the moving process of the rubber sealing plate, the volume in a group of sealing spaces is increased, and the volume of the rubber sealing plate is reduced. Therefore, adsorption force is generated in the space and is transmitted into each group of second sliding grooves through a conveying groove, so that a limiting plate is driven to move towards the direction of a second spring, the limiting plate is separated from the interior of a first limiting groove, and a telescopic column in a compressed state generates certain elastic force to drive an outer frame plate to be separated from the outer surface of the backlight module. Therefore, the effect of quickly detaching the outer frame plate and the metal back plate is achieved.

Description

Technical Field

[0001] This utility model relates to the field of backlight mechanism technology, and more specifically to a modular backlight structure for LCD screens. Background Technology

[0002] Modular backlight structure refers to designing the backlight system of an LCD display as a modular component that can be independently assembled, replaced, and upgraded. Common modular backlight structures mainly consist of a light source module, optical components, structural support, and driving and control circuit boards. The specific workflow of a modular backlight structure is as follows: 1. LED light emission: Light from LED strips enters the side of the light guide plate; 2. Light homogenization: The light guide plate (edge ​​type) scatters light through dots, or direct-lit backlights mix light through a diffusion film; 3. Optical film treatment: The diffusion film eliminates graininess, and the brightness enhancement film increases the brightness of the front; 4. Illumination of the liquid crystal layer: Uniform backlight penetrates the liquid crystal molecules and forms an image through a polarizer; the entire process is controlled by a circuit board.

[0003] The structural support mainly consists of an outer frame plate and a metal back plate, and each component is installed inside the outer frame plate and the metal back plate. The two are fixed to each other by movable buckles. However, in the existing technology, when disassembling the modular backlight structure, it is necessary to manually use external tools to pry open the movable buckles of the outer frame plate and the metal back plate in order to disassemble it. This process wastes a certain amount of manpower, and if the staff does not operate properly, it may cause certain injuries to the staff.

[0004] Therefore, there is an urgent need for a modular backlight structure for LCD screens to solve the aforementioned technical problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a modular backlight structure for LCD screens to solve the problems existing in the background art.

[0006] This utility model provides the following technical solution: a modular backlight structure for an LCD screen, characterized in that it includes:

[0007] Backlight module, used to assist in image display;

[0008] An outer frame plate is used to assist in fixing the backlight module. The outer frame plate is installed on the upper surface of the backlight module, and multiple sets of first limiting grooves are opened on the side of the outer frame plate.

[0009] A metal backplate is used to assist in limiting the backlight module, wherein the metal backplate is installed on the lower surface of the backlight module, and the inner side of the outer frame plate is attached to the outer surface of the metal backplate.

[0010] A rubber layer is laid on the upper surface of the metal back plate. When the metal back plate and the outer frame plate are connected and subjected to external force, the rubber layer can play a buffering role. Furthermore, telescopic columns are installed through the four corners of the top of the metal back plate. The end of the telescopic column away from the metal back plate passes through the inner wall of the rubber layer and extends to the upper surface of the rubber layer.

[0011] Preferably, the inner walls on both sides of the metal back plate are provided with a first sliding groove. A rubber sealing plate is movably sleeved on the inner wall of the first sliding groove. The rubber sealing plate isolates the first sliding groove into two independent sealing spaces. A first spring is vertically installed on the side of the rubber sealing plate near the inner side of the metal back plate. The first spring is vertically installed on the inner wall of the first sliding groove at the end away from the rubber sealing plate.

[0012] Preferably, a support column is installed on the side of the rubber sealing plate away from the first spring, and a pressing plate is installed on the end of the support column away from the rubber sealing plate. The pressing plate is set in a set of sealed spaces containing compressed air, and a conveying groove is opened on the inner wall of the metal back plate near the set of sealed spaces for conveying compressed air in the set of sealed spaces.

[0013] Preferably, the inner wall of the side of the metal back plate is provided with a second sliding groove, and the second sliding groove and the conveying groove are in a state of mutual gas flow. The inner wall of the second sliding groove is movably sleeved with a limiting plate. A second spring is installed at one end of the limiting plate near the metal back plate, and the other end of the second spring away from the limiting plate is vertically installed on the inner wall of the metal back plate. The other end of the limiting plate extends to the outer side of the metal back plate.

[0014] Preferably, the outer side of the limiting plate is adapted to the inner side of the first limiting groove.

[0015] Preferably, a main limiting post is installed on the bottom surface of the backlight module, a circuit board is installed on the outer wall of the main limiting post, an auxiliary limiting post is installed on the outer side of the main limiting post away from the backlight module, a cover structure is installed at the end of the main limiting post away from the backlight module, a T-shaped limiting groove is opened on the inner wall of the cover structure, an elastic plate is movably sleeved on the inner side of the bottom of the cover structure, and a third spring is vertically installed at the bottom of the elastic plate.

[0016] The technical effects and advantages of this utility model are as follows:

[0017] 1. This utility model involves pressing a pressing plate, which moves the support column and rubber sealing plate towards the position of the first spring. During the movement of the rubber sealing plate, the volume of a set of sealed spaces increases, thus generating an adsorption force within the space. This force is transmitted through the conveying groove to the interior of each set of second sliding grooves, thereby driving the limiting plate to move towards the direction of the second spring. The limiting plate disengages from the interior of the first limiting groove, and the telescopic column, which is in a compressed state, generates a certain elastic force, driving the outer frame plate to disengage from the outer surface of the backlight module, thereby achieving the effect of quickly disassembling the outer frame plate from the metal back plate.

[0018] 2. In this utility model, the cover structure moves to the bottom surface of the main limiting post, and the cover structure slowly moves to the outer surface of the main limiting post. During the movement of the cover structure, the auxiliary limiting post moves along the inner wall of the T-shaped limiting groove. When the auxiliary limiting post moves to a certain height, the cover structure rotates 90 degrees. At this time, the auxiliary limiting post is inserted into the inner wall of the T-shaped limiting groove. Similarly, during disassembly, the operator only needs to rotate the cover structure in the opposite direction by 90 degrees. Under the action of the third spring and the elastic plate, the auxiliary limiting post disengages from the inner wall of the T-shaped limiting groove, so that the operator can quickly disassemble the circuit board. Attached Figure Description

[0019] Figure 1 This is an exploded view of the overall structure of this utility model.

[0020] Figure 2 for Figure 1 The diagram shows a partial structural schematic.

[0021] Figure 3 for Figure 2 The cross-sectional view of the metal backplate section shown.

[0022] Figure 4 for Figure 1 The cross-sectional view of the metal backplate section shown.

[0023] Figure 5 for Figure 1 The diagram shows a cross-sectional view of the cover structure.

[0024] The attached diagram is labeled as follows: 1. Backlight module; 2. Outer frame plate; 201. First limiting groove; 3. Metal back plate; 301. Pressing plate; 302. Limiting plate; 303. Rubber layer; 304. Telescopic column; 305. Conveying groove; 306. Support column; 307. Rubber sealing plate; 308. First spring; 309. Second spring; 4. Circuit board; 401. Cover structure; 402. T-shaped limiting groove; 403. Elastic plate; 404. Main limiting column; 405. Auxiliary limiting column. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The modular backlight structure for LCD screens involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0026] Reference Figure 1 and Figure 2 This utility model provides a modular backlight structure for LCD screens, comprising:

[0027] Backlight module 1, used to assist in image display;

[0028] The outer frame plate 2 is used to assist in fixing the backlight module 1. The outer frame plate 2 is installed on the upper surface of the backlight module 1, and multiple sets of first limiting grooves 201 are opened on the side of the outer frame plate 2.

[0029] Metal back plate 3 is used to assist in limiting the backlight module 1. The metal back plate 3 is installed on the lower surface of the backlight module 1, and the inner side of the outer frame plate 2 is attached to the outer surface of the metal back plate 3.

[0030] The upper surface of the metal back plate 3 is covered with a rubber layer 303. When the metal back plate 3 and the outer frame plate 2 are connected and subjected to external force, the rubber layer 303 can play a buffering role. Furthermore, telescopic columns 304 are installed through the four corners of the top of the metal back plate 3. The end of the telescopic column 304 away from the metal back plate 3 penetrates the inner wall of the rubber layer 303 and extends to the upper surface of the rubber layer 303.

[0031] Reference Figures 1 to 4 As shown, this utility model provides a modular backlight structure for an LCD screen. The inner walls on both sides of the metal back plate 3 are provided with first sliding grooves. A rubber sealing plate 307 is movably sleeved on the inner wall of the first sliding groove. The rubber sealing plate 307 isolates the first sliding groove into two independent sealing spaces. A first spring 308 is vertically installed on the side of the rubber sealing plate 307 near the inner side of the metal back plate 3. The end of the first spring 308 away from the rubber sealing plate 307 is vertically installed on the inner wall of the first sliding groove.

[0032] The rubber sealing plate 307 has a support column 306 installed on its side away from the first spring 308. A pressing plate 301 is installed on one end of the support column 306 away from the rubber sealing plate 307. The pressing plate 301 is set in a set of sealed spaces. Compressed air is provided in the set of sealed spaces. A conveying groove 305 is opened on the inner wall of the metal back plate 3 near the set of sealed spaces for conveying compressed air in the set of sealed spaces.

[0033] The inner wall of the side of the metal back plate 3 is provided with a second sliding groove, and the second sliding groove and the conveying groove 305 are in a state of mutual gas flow. The inner wall of the second sliding groove is movably sleeved with a limiting plate 302. A second spring 309 is installed at one end of the limiting plate 302 near the metal back plate 3, and the other end of the second spring 309 away from the limiting plate 302 is vertically installed on the inner wall of the metal back plate 3. The other end of the limiting plate 302 extends to the outer side of the metal back plate 3.

[0034] The outer side of the limiting plate 302 is adapted to the inner side of the first limiting groove 201.

[0035] In this embodiment of the application, the specific workflow of this part of the application embodiment is as follows: During installation, the backlight module 1 is placed inside the metal back plate 3. After the backlight module 1 is placed, the outer frame plate 2 and the metal back plate 3 are aligned. After the alignment, the outer frame plate 2 is moved to the outer surface of the metal back plate 3. At this time, the pressing plate 301 is inserted into the inner wall of the first limiting groove 201. At this time, the backlight module 1, the outer frame plate 2 and the metal back plate 3 are installed as a whole.

[0036] When disassembling the backlight module 1, outer frame plate 2, and metal back plate 3, the operator presses the pressing plate 301. The pressing plate 301 moves the support column 306 and the rubber sealing plate 307 towards the position of the first spring 308. During the movement of the rubber sealing plate 307, the volume of a set of sealed spaces increases, thus generating an adsorption force in the space and transmitting it through the conveying groove 305 to the interior of each set of second sliding grooves. This drives the limiting plate 302 to move towards the direction of the second spring 309. The limiting plate 302 disengages from the interior of the first limiting groove 201, and the telescopic column 304, which is in a compressed state, generates a certain elastic force, driving the outer frame plate 2 to detach from the outer surface of the backlight module 1, thereby achieving the effect of quickly disassembling the outer frame plate 2 and the metal back plate 3.

[0037] Reference Figures 1 to 5 As shown, a main limiting post 404 is installed on the bottom surface of the backlight module 1, a circuit board 4 is installed on the outer wall of the main limiting post 404, an auxiliary limiting post 405 is installed on the outer side of the main limiting post 404 away from the backlight module 1, a cover structure 401 is installed at one end of the main limiting post 404 away from the backlight module 1, a T-shaped limiting groove 402 is opened on the inner wall of the cover structure 401, an elastic plate 403 is movably sleeved on the inner side of the bottom of the cover structure 401, and a third spring is vertically installed at the bottom of the elastic plate 403.

[0038] The specific workflow of this application embodiment is as follows: When the circuit board 4 is installed on the outer wall of the main limiting post 404, the cover structure 401 moves to the bottom surface of the main limiting post 404. The cover structure 401 slowly moves to the outer surface of the main limiting post 404. During the movement of the cover structure 401, the auxiliary limiting post 405 moves along the inner wall of the T-shaped limiting groove 402. When the auxiliary limiting post 405 moves to a certain height, the cover structure 401 rotates 90 degrees. At this time, the auxiliary limiting post 405 is inserted into the inner wall of the T-shaped limiting groove 402. Similarly, during disassembly, the operator only needs to rotate the cover structure 401 in the opposite direction by 90 degrees. Under the action of the third spring and the elastic plate 403, the auxiliary limiting post 405 disengages from the inner wall of the T-shaped limiting groove 402, so that the operator can quickly disassemble the circuit board 4.

[0039] The specific workflow of this application embodiment is as follows:

[0040] Step 1: During installation, place the backlight module 1 inside the metal back plate 3. After the backlight module 1 is placed, align the outer frame plate 2 with the metal back plate 3. Once aligned, move the outer frame plate 2 to the outer surface of the metal back plate 3. At this time, the pressing plate 301 is inserted into the inner wall of the first limiting groove 201. The backlight module 1, outer frame plate 2, and metal back plate 3 are then fully installed.

[0041] When disassembling the backlight module 1, outer frame plate 2, and metal back plate 3, the operator presses the pressing plate 301. The pressing plate 301 drives the support column 306 and the rubber sealing plate 307 to move towards the position of the first spring 308. During the movement of the rubber sealing plate 307, the volume of a set of sealed spaces increases, thus generating an adsorption force in the space and transmitting it through the conveying groove 305 to the interior of each set of second sliding grooves. This drives the limiting plate 302 to move towards the direction of the second spring 309. The limiting plate 302 disengages from the interior of the first limiting groove 201, and the telescopic column 304, which is in a compressed state, generates a certain elastic force, driving the outer frame plate 2 to disengage from the outer surface of the backlight module 1, thereby achieving the effect of quickly disassembling the outer frame plate 2 and the metal back plate 3.

[0042] Step 2: When circuit board 4 is installed on the outer wall of main limiting post 404, cover structure 401 moves to the bottom surface of main limiting post 404. Cover structure 401 slowly moves to the outer surface of main limiting post 404. During the movement of cover structure 401, auxiliary limiting post 405 moves along the inner wall of T-shaped limiting groove 402. When auxiliary limiting post 405 moves to a certain height, cover structure 401 rotates 90 degrees. At this time, auxiliary limiting post 405 is inserted into the inner wall of T-shaped limiting groove 402. Similarly, during disassembly, the operator only needs to rotate cover structure 401 in the opposite direction by 90 degrees. Under the action of the third spring and elastic plate 403, auxiliary limiting post 405 disengages from the inner wall of T-shaped limiting groove 402, so that the operator can quickly disassemble circuit board 4.

[0043] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0044] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0045] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular backlight structure for an LCD panel, characterized by, The utility model relates to a back light module (1) for assisting the display of image, an outer frame plate (2) for assisting the fixation of back light module (1), wherein the outer frame plate (2) is installed on the upper surface of back light module (1), and a plurality of first limiting grooves (201) are formed on the side of the outer frame plate (2). The utility model relates to a metal back plate (3) for assisting the limiting of back light module (1), wherein the metal back plate (3) is installed on the lower surface of back light module (1), and the inner side of the outer frame plate (2) is attached to the outer surface of the metal back plate (3). The upper surface of the metal back plate (3) is paved with a rubber layer (303), and the rubber layer (303) can play a buffering role when the metal back plate (3) and the outer frame plate (2) are in a connected state and are subjected to external force. The inner walls of the metal back plate (3) on both sides are provided with first sliding grooves, the inner walls of the first sliding grooves are movably sleeved with rubber sealing plates (307), the rubber sealing plates (307) separate the first sliding grooves into two independent sealed spaces, the side of the rubber sealing plate (307) close to the inner side of the metal back plate (3) is vertically installed with a first spring (308), and the other end of the first spring (308) is vertically installed on the inner wall of the first sliding groove. The side of the rubber sealing plate (307) away from the first spring (308) is installed with a support column (306), the other end of the support column (306) is installed with a pressing plate (301), the pressing plate (301) is arranged in one of the sealed spaces, compressed air is arranged in the sealed space, the inner wall of the metal back plate (3) is provided with a conveying groove (305) close to the sealed space, and the conveying groove (305) is used for conveying the compressed air in the sealed space.

2. A modular backlight structure for an LCD panel according to claim 1, characterized in that: The inner wall of the side of the metal back plate (3) is provided with a second sliding groove, the second sliding groove and the conveying groove (305) are in a gas mutual flow state, the inner wall of the second sliding groove is movably sleeved with a limiting plate (302), the other end of the limiting plate (302) close to the metal back plate (3) is installed with a second spring (309), the other end of the second spring (309) away from the limiting plate (302) is vertically installed on the inner wall of the metal back plate (3), and the other end of the limiting plate (302) extends to the outer side of the metal back plate (3).

3. A modular backlight structure for an LCD panel according to claim 2, wherein: The outer side of the limiting plate (302) is matched with the inner side of the first limiting groove (201).

4. A modular backlight structure for an LCD panel according to claim 3, wherein: ​ 5. A modular backlight structure for an LCD panel according to claim 4, wherein: ​ 6. A modular backlight structure for an LCD panel according to claim 1, wherein: The bottom surface of the backlight module (1) is provided with a main limiting column (404), the outer wall of the main limiting column (404) is provided with a circuit board (4), the outer side of the position of the main limiting column (404) away from the backlight module (1) is provided with an auxiliary limiting column (405), one end of the main limiting column (404) away from the position of the backlight module (1) is provided with a cover structure (401), the inner wall of the cover structure (401) is provided with a T-shaped limiting groove (402), the inner side of the bottom of the cover structure (401) is movably sleeved with an elastic plate (403), and the bottom of the elastic plate (403) is vertically provided with a third spring.

Images