CN217639865U - Backlight plate capable of assisting in correcting deformation and deviation of metal pins of liquid crystal display - Google Patents

Abstract

The utility model discloses a can assist and correct board in a poor light of LCD metal pin deformation and off normal, relate to board in a poor light technical field, including back light board subassembly, back light board subassembly upper end is provided with LCD, back light board subassembly lower extreme is provided with the circuit board, block fixed part both sides all are provided with block fixed part, back light board subassembly includes main frame board and the supplementary guide block of setting in main frame board one side, main frame board top surface evenly distributed all around has the limiting plate, and the limiting plate is provided with four groups, limiting plate one side of four groups is provided with the rubber pad, this kind sets up the person of facilitating the use and is in back light board subassembly, when LCD and circuit board assemble each other, can assist and correct LCD's metal pin deformation and take place the off normal, make in the accurate welding hole groove that inserts on the circuit board of metal pin, save the time of artifical cost, promote production efficiency, good quality when keeping back light board and LCD and circuit board equipment.

Description

Backlight plate capable of assisting in correcting deformation and deviation of metal pins of liquid crystal display

Technical Field

The utility model relates to a board technical field in a poor light specifically is a board in a poor light that can assist and correct LCD metal pin deformation and off normal.

Background

The backlight plate is a light source device for ensuring the brightness of the back of the liquid crystal display screen, and is widely used in the assembly process of the current liquid crystal display screen. The liquid crystal display has various connection modes, and in the front-end production process of the liquid crystal display with the metal pins, due to various reasons such as shearing, chip mounting, testing, turnover and the like after the pins are installed, the phenomena of deformation, deviation and the like of individual pins easily occur, so that the metal pins of the liquid crystal display cannot be accurately inserted into welding holes on a circuit board.

The existing backlight plate design is to leave a space in the position of a metal pin of a liquid crystal display, the design ensures that the backlight plate does not influence the assembly of the metal pin, but can not improve the assembly difficulty caused by the deformation or deviation of the metal pin, when the metal pin of the liquid crystal display is installed with a circuit board, the deviation of individual pin is easily caused, a large amount of time is needed for manual correction, the production efficiency is low, the quality of the backlight plate is poor, and when the backlight plate is connected with the liquid crystal display, the situations of instable installation and shaking can easily occur; on the other hand, the conventional backlight plate is of a simple plane plate structure and is connected to the liquid crystal display through a simple connection mode (such as adhesion and the like), and the connection mode is difficult to remove and replace, so that a user is inconvenient to maintain, and the practicability of the device is reduced.

In view of the above problems, a backlight plate capable of assisting in correcting the deformation and deviation of metal pins of a liquid crystal display is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can assist and correct the board in a poor light of LCD metal pin deformation and off normal, adopt this device to work, thereby solved the present board in a poor light design in the above-mentioned background and left the hole with LCD's metal pin position, this design makes the board in a poor light can not influence the assembly of metal pin, but also can't improve the assembly difficulty that leads to because of metal pin deformation or off normal, when installing LCD's metal pin and circuit board again, cause individual pin off normal easily, manual correction needs to spend a large amount of time, lead to the production efficiency low, and lead to the board in a poor light quality, when the board in a poor light is connected with LCD, can appear easily and have the condition of installing unstability, rocking; on the other hand, the existing backlight plate is of a simple plane plate structure and is connected to the liquid crystal display through a simple connection mode (such as pasting), and the connection mode is difficult to take down and replace, so that a user is inconvenient to maintain, and the practicability of the device is reduced.

In order to achieve the above purpose, the utility model provides a technical scheme does: the utility model provides a can assist and correct board in a poor light of deformation of LCD metal pin and off normal, includes backlight unit spare, backlight unit spare upper end is provided with LCD, and the board in a poor light subassembly lower extreme is provided with the circuit board, and the LCD both sides all are provided with block fixed part, and the board in a poor light subassembly includes main frame board and sets up the supplementary guide block in main frame board one side, and main frame board top surface evenly distributed all around has the limiting plate, and the limiting plate is provided with four groups, four groups limiting plate one side be provided with the rubber pad.

Preferably, the middle part of the main frame plate is provided with a light guide plate component, the light guide plate component comprises a light guide plate main body and a diffusion film arranged on the upper surface of the light guide plate main body, the outer surface of the light guide plate main body is provided with a frosted surface, and the lower surface of the light guide plate main body is provided with a reflective film.

Preferably, the top surface of the main frame plate is provided with four groups of clamping hole grooves, the bottom of the main frame plate is provided with four groups of supporting and installing blocks, and the two sides of the main frame plate are fixedly connected with L-shaped fixing blocks.

Preferably, the top surface of the auxiliary guide block is uniformly distributed with guide cavity grooves, the guide cavity grooves are provided with a plurality of groups, the lower ends of the guide cavity grooves of the plurality of groups are provided with correction cavity grooves, and the correction cavity grooves are communicated with the guide cavity grooves.

Preferably, the bottom of the liquid crystal display is provided with four clamping columns, the four clamping columns are connected with the four clamping hole grooves in a clamping mode, metal pins are uniformly distributed on one side of the liquid crystal display and provided with a plurality of groups, and the plurality of groups of metal pins correspond to the plurality of groups of guide cavity grooves.

Preferably, the top surface of the circuit board is provided with four mounting cavity grooves, and the four mounting cavity grooves are matched with the four support mounting blocks.

Preferably, the clamping and fixing component comprises a first connecting block fixedly connected to one side of the liquid crystal display, a clamping groove is formed in one side of the first connecting block, and the clamping and fixing component further comprises a second connecting block fixedly connected to the top surface of the L-shaped fixing block and a pull handle arranged on one side of the second connecting block.

Preferably, second connecting block inner wall one side fixedly connected with spring, spring one end fixedly connected with fixture block, and fixture block and clamping groove phase-match.

Preferably, one side of the pull handle is fixedly connected with a movable rod, a spring is arranged on the periphery of the movable rod, one end of the movable rod penetrates through the second connecting block to be fixedly connected with the clamping block, and the movable rod is slidably connected with the second connecting block.

Preferably, one side of the top surface of the circuit board, which is close to the auxiliary guide block, is also provided with a plurality of welding hole grooves, and the plurality of welding hole grooves correspond to the plurality of correction groove cavities.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a can assist and correct LCD metal pin deformation and off normal board, carry out fixed mounting with backlight unit and circuit board through the corresponding position that supports installation piece and installation chamber groove, when LCD and backlight unit equipment, metal pin gets into the supplementary guide block of backlight unit one side earlier, if there is partial metal pin off normal, supplementary guide block can correct the metal pin of off normal, the direction chamber groove on the supplementary guide block is the letter Y word form with the holistic longitudinal profile of correction groove chamber, it includes that the aperture progressively diminishes from top to bottom direction chamber groove, can make metal pin speed enter into the direction chamber groove high-efficiently, the back leads to and enters into the correction groove chamber, the pin comes out from the correction groove chamber and connects with the welding hole groove on the circuit board smoothly again, and the light guide plate main part that has the frosted surface, can realize light evenly distributed effectively, and provide even light source, lower surface at the light guide plate main part is provided with the reflective coating, can reflect the light guide plate main part once more below the light guide plate main part to improve the light utilization ratio, the upper surface of light guide plate main part is provided with the diffusion coating, the diffusion coating can make the light guide plate main part pass when the light guide plate main part and the diffusion film to carry out the LCD and the production of the relevant cost of the LCD can take place the good diffusion of the cost of the mutual reflection of LCD, it can take place to the cost of the LCD and the LCD to carry out the correct the LCD.

2. The utility model discloses a can assist and correct the board in a poor light that LCD metal pin warp and off normal, after the operator has passed through supplementary guide block and welding hole groove with metal pin and corresponds, need to carry out fixed combination with LCD and back light board subassembly, then can pull the handle to both sides pulling, pull the handle and drive movable rod and fixture block to keeping away from light guide plate part one side motion, the spring is compressed simultaneously, inside the fixture block gets into the second connecting block completely, place LCD in main frame board upper end, LCD's four corners corresponds with four group's limiting plates and places, be favorable to preventing that LCD takes place the off normal, the periphery in rubber pad laminating LCD four corners, play anti-skidding guard action to LCD, joint post and block hole groove block are connected simultaneously, can loosen the handle at this moment, because the spring needs elastic deformation's recovery, the spring can drive the fixture block to the motion of the block groove direction of LCD one side rather than corresponding, until fixture block and the groove block complete block of LCD, back light board subassembly is fixed with the LCD block, if want to dismantle the maintenance to the LCD, then can get inside the block to the handle to the liquid crystal display through the effectual block of fixing installation when the installation, the liquid crystal display installation stability is compared with the effectual block, the liquid crystal display device, the installation user takes place the convenience of this.

Drawings

FIG. 1 is an overall structure diagram of the present invention;

FIG. 2 is a three-dimensional structure diagram of the backlight assembly, the LCD and the circuit board of the present invention;

FIG. 3 is a cross-sectional view of the fastening member of the present invention;

FIG. 4 is a perspective view of the backlight assembly of the present invention;

fig. 5 is a sectional view of the auxiliary guide block of the present invention;

fig. 6 is a cross-sectional view of the main frame plate of the present invention.

In the figure: 1. a backlight assembly; 11. a main frame plate; 12. a limiting plate; 13. a rubber pad; 14. a light guide plate member; 141. a light guide plate main body; 142. a diffusion membrane; 143. a light-reflecting film; 15. an auxiliary guide block; 16. an L-shaped fixed block; 17. a snap-fit hole groove; 18. supporting the mounting block; 19. a guide cavity groove; 191. correcting the slot cavity; 2. a fastening and fixing component; 21. a first connection block; 22. a second connecting block; 23. a clamping groove; 24. a spring; 25. a movable rod; 26. pulling a handle; 27. a clamping block; 3. a liquid crystal display; 31. clamping the column; 32. a metal pin; 4. a circuit board; 41. installing a cavity groove; 42. and welding the hole groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

With reference to fig. 1-2, a backlight plate capable of assisting in correcting deformation and deviation of metal pins of a liquid crystal display comprises a backlight plate assembly 1, wherein a liquid crystal display 3 is arranged at the upper end of the backlight plate assembly 1, a circuit board 4 is arranged at the lower end of the backlight plate assembly 1, clamping fixing components 2 are arranged on two sides of the liquid crystal display 3, the backlight plate assembly 1 comprises a main frame plate 11 and auxiliary guide blocks 15 arranged on one side of the main frame plate 11, limiting plates 12 are uniformly distributed on the periphery of the top surface of the main frame plate 11, four groups of limiting plates 12 are arranged on the periphery of the limiting plates 12, and rubber pads 13 are arranged on one side of the limiting plates 12.

The present invention will be further described with reference to the following examples.

Example 1

Referring to fig. 1-2 and 4-6, a light guide plate 14 is disposed in the middle of a main frame plate 11, the light guide plate 14 includes a light guide plate body 141 and a diffusion film 142 disposed on the upper surface of the light guide plate body 141, a frosted surface is disposed on the outer surface of the light guide plate body 141, a reflective film 143 is disposed on the lower surface of the light guide plate body 141, a support mounting block 18 is disposed at the bottom of the main frame plate 11, four sets of the support mounting block 18 are disposed, L-shaped fixing blocks 16 are fixedly connected to both sides of the main frame plate 11, guide cavity grooves 19 are uniformly distributed on the top surface of an auxiliary guide block 15, a plurality of sets of the guide cavity grooves 19 are disposed, a calibration cavity 191 is disposed at the lower end of each of the plurality of sets of the guide cavity grooves 19, the calibration cavity 191 is communicated with the guide cavity grooves 19, a plurality of sets of metal pins 32 are uniformly distributed on one side of a liquid crystal display 3, a plurality of the metal pins 32 correspond to the plurality of sets of the guide cavity grooves 19, a mounting cavity groove 41 is disposed on the top surface of a circuit board 4, a plurality of sets of mounting cavity grooves 41 are disposed, four sets of the mounting cavity grooves 41 are matched with the four sets of support mounting block 18, a plurality of sets of the support mounting grooves 42 are disposed on one side of the circuit board 4, and a plurality of the welding hole 42 is disposed adjacent to the auxiliary guide cavity grooves 42.

Example 2

Referring to fig. 2-4, the top surface of the main frame plate 11 is provided with four engaging hole grooves 17, the four engaging hole grooves 17 are provided, the bottom of the liquid crystal display 3 is provided with four engaging posts 31, the four engaging posts 31 are engaged with the four engaging hole grooves 17, the engaging fixing member 2 includes a first connecting block 21 fixedly connected to one side of the liquid crystal display 3, one side of the first connecting block 21 is provided with an engaging groove 23, the engaging fixing member 2 further includes a second connecting block 22 fixedly connected to the top surface of the L-shaped fixing block 16 and a pull handle 26 arranged at one side of the second connecting block 22, one side of the inner wall of the second connecting block 22 is fixedly connected with a spring 24, one end of the spring 24 is fixedly connected with a fixture 27, the fixture 27 is matched with the engaging groove 23, one side of the pull handle 26 is fixedly connected with a movable rod 25, the periphery of the movable rod 25 is provided with a spring 24, one end of the movable rod 25 passes through the second connecting block 22 to be fixedly connected with the fixture 27, and the movable rod 25 is slidably connected with the second connecting block 22.

In conclusion: the utility model discloses a backlight board capable of assisting in correcting deformation and deviation of metal pins of a liquid crystal display, fixedly mounting a backlight board assembly 1 and a circuit board 4 through corresponding positions of a supporting mounting block 18 and a mounting cavity groove 41, when the liquid crystal display 3 is assembled with the backlight board assembly 1, the metal pins 32 firstly enter an auxiliary guide block 15 at one side of the backlight board assembly 1, if partial metal pins 32 deviate, the auxiliary guide block 15 can correct the deviated metal pins, the whole longitudinal section of a guide cavity groove 19 and a correction cavity 191 on the auxiliary guide block 15 is in a letter Y shape, the guide cavity groove 19 with gradually reduced aperture is included, namely, the metal pins 32 can efficiently enter the guide cavity groove 19, the rear lead-in enters a correction cavity 191, the pins smoothly come out of the correction cavity 191 and then are connected with a welding hole groove 42 on the circuit board 4, a light guide board body 141 with a frosted surface is provided, uniform light distribution can be effectively realized, and a uniform light source is provided, a refraction film 143 is arranged on the lower surface of the light guide board body 141, the light guide board body can improve the light diffusion efficiency when the backlight board assembly 3 and the backlight board assembly 4 can be conveniently inserted, the light diffusion efficiency and the backlight board assembly can be improved, the light diffusion efficiency can be improved, the backlight board assembly, the light diffusion efficiency can be more, the backlight board 32 can be conveniently, the light diffusion efficiency can be improved, when an operator has moved the metal pins 32 up through the auxiliary guide blocks 15 and the welding holes 42, the lcd 3 and the backlight assembly 1 need to be fixedly combined, the pull handle 26 can be pulled to both sides, the pull handle 26 drives the movable rod 25 and the latch 27 to move to a side away from the light guide plate 14, and the spring 24 is compressed until the latch 27 completely enters the second connecting block 22, the lcd 3 is placed on the upper end of the main frame plate 11, the four corners of the lcd 3 correspond to the four sets of the limiting plates 12, which is beneficial to preventing the lcd 3 from being misaligned, the rubber pad 13 adheres to the periphery of the four corners of the lcd 3, so as to protect the lcd 3 from slipping, the latch posts 31 engage with the latch holes 17, at this time, the pull handle 26 can be released, because the spring 24 needs to recover from elastic deformation, the latch 27 will drive the latch 27 to move toward the latch groove 23 on the side of the lcd 3 corresponding thereto, until the latch 27 completely engages with the latch groove 23, the latch assembly 1 is fixedly engaged with the lcd 3, if the lcd 3 needs to be disassembled, the latch assembly 27 can be pulled outward, and the lcd 3 can be installed in a manner that the lcd 3 can be conveniently and the lcd 3 can be quickly detached from the second connecting block 3, and the lcd 3 can be conveniently installed in a second connecting device, when the lcd 3 is installed.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The utility model provides a can assist and correct the board in a poor light of LCD metal pin deformation and off normal, includes board subassembly in a poor light (1), its characterized in that: the backlight plate component is characterized in that a liquid crystal display (3) is arranged at the upper end of the backlight plate component (1), a circuit board (4) is arranged at the lower end of the backlight plate component (1), clamping fixing components (2) are arranged on two sides of the liquid crystal display (3), the backlight plate component (1) comprises a main frame plate (11) and auxiliary guide blocks (15) arranged on one side of the main frame plate (11), limiting plates (12) are uniformly distributed on the periphery of the top surface of the main frame plate (11), four groups of limiting plates (12) are arranged, and a rubber pad (13) is arranged on one side of each limiting plate (12).

2. The backlight plate of claim 1, wherein the backlight plate is capable of assisting in correcting the deformation and the offset of the metal pins of the liquid crystal display, and comprises: the light guide plate component (14) is arranged in the middle of the main frame plate (11), the light guide plate component (14) comprises a light guide plate main body (141) and a diffusion film (142) arranged on the upper surface of the light guide plate main body (141), a frosted surface is arranged on the outer surface of the light guide plate main body (141), and a reflective film (143) is arranged on the lower surface of the light guide plate main body (141).

3. The backlight plate of claim 2, wherein the backlight plate is capable of assisting in correcting the deformation and the offset of the metal pins of the liquid crystal display, and comprises: the top surface of the main frame plate (11) is provided with clamping hole grooves (17), the clamping hole grooves (17) are provided with four groups, the bottom of the main frame plate (11) is provided with supporting and mounting blocks (18), the supporting and mounting blocks (18) are provided with four groups, and two sides of the main frame plate (11) are fixedly connected with L-shaped fixing blocks (16).

4. The backlight plate of claim 3, wherein the backlight plate is capable of assisting in correcting the deformation and the offset of the metal pins of the LCD, and comprises: the top surface of the auxiliary guide block (15) is uniformly distributed with guide cavity grooves (19), the guide cavity grooves (19) are provided with a plurality of groups, the lower ends of the guide cavity grooves (19) of the groups are provided with correction cavity grooves (191), and the correction cavity grooves (191) are communicated with the guide cavity grooves (19).

5. The backlight plate of claim 4, wherein the backlight plate is capable of assisting in correcting the deformation and the offset of the metal pins of the LCD, and comprises: the liquid crystal display is characterized in that clamping columns (31) are arranged at the bottom of the liquid crystal display (3), four groups of clamping columns (31) are arranged on the clamping columns (31), the clamping columns (31) are connected with the four groups of clamping hole grooves (17) in a clamping mode, metal pins (32) are uniformly distributed on one side of the liquid crystal display (3), multiple groups of metal pins (32) are arranged on the metal pins (32), and the multiple groups of metal pins (32) correspond to the multiple groups of guide cavity grooves (19).

6. The backlight plate of claim 3 for assisting in correcting the deformation and displacement of metal pins of LCD, wherein: the top surface of the circuit board (4) is provided with four mounting cavity grooves (41), and the four mounting cavity grooves (41) are matched with the four support mounting blocks (18).

7. The backlight plate of claim 3 for assisting in correcting the deformation and displacement of metal pins of LCD, wherein: the clamping and fixing component (2) comprises a first connecting block (21) fixedly connected to one side of the liquid crystal display (3), a clamping groove (23) is formed in one side of the first connecting block (21), and the clamping and fixing component (2) further comprises a second connecting block (22) fixedly connected to the top surface of the L-shaped fixing block (16) and a pull handle (26) arranged on one side of the second connecting block (22).

8. The backlight plate of claim 7, wherein the backlight plate is capable of assisting in correcting the deformation and the offset of the metal pins of the LCD, and comprises: second connecting block (22) inner wall one side fixedly connected with spring (24), spring (24) one end fixedly connected with fixture block (27), and fixture block (27) and clamping groove (23) phase-match.

9. The backlight plate of claim 8 for assisting in correcting the deformation and misalignment of metal pins of LCD, wherein: draw handle (26) one side fixedly connected with movable rod (25), and movable rod (25) periphery is provided with spring (24), and second connecting block (22) and fixture block (27) fixed connection are passed to movable rod (25) one end, and movable rod (25) and second connecting block (22) sliding connection.

10. The backlight plate of claim 4, wherein the backlight plate is capable of assisting in correcting the deformation and the offset of the metal pins of the LCD, and comprises: one side, close to the auxiliary guide block (15), of the top surface of the circuit board (4) is also provided with a welding hole groove (42), the welding hole grooves (42) are provided with multiple groups, and the multiple groups of welding hole grooves (42) correspond to the multiple groups of correction groove cavities (191).

Images