CN210005824U

CN210005824U - direct-emitting LCD backlight board

Info

Publication number: CN210005824U
Application number: CN201920813543.3U
Authority: CN
Inventors: 邬思海; 陈晖宇
Original assignee: Hang Qing Optoelectronic (dongguan) Co Ltd
Current assignee: Hang Qing Optoelectronic (dongguan) Co Ltd
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-01-31
Anticipated expiration: 2029-05-31

Abstract

The utility model belongs to LCD backlight panel field specifically is kinds of direct-fired type LCD backlight panels, including planking, top cap, adjusting screw, light-guiding mechanism, the planking inboard is provided with light-guiding mechanism, the planking upper end is provided with the top cap, the planking includes backplate, curb plate, bottom plate, the backplate both ends all are provided with the curb plate, the backplate lower extreme is provided with the bottom plate, the curb plate inboard is provided with the mount, be provided with on the mount adjusting screw, adjusting screw includes adjustment tank, double-screw bolt, screw thread, connecting pin, the double-screw bolt front end is provided with the adjustment tank, be provided with on the double-screw bolt the screw thread, the double-screw bolt rear end is provided with the connecting pin, through the utility model discloses be provided with adjusting screw, improved the convenience of adjustment, utilize the screw thread adjustment, increased self-locking nature, utilize the top cap to encapsulate.

Description

direct-emitting LCD backlight board

Technical Field

The utility model belongs to LCD board field in a poor light specifically relates to kinds of direct-emitting type LCD board in a poor light.

Background

The LCD is constructed by placing liquid crystal cells between two parallel glass substrates, arranging TFT (thin film transistor) on the lower substrate glass, arranging color filter on the upper substrate glass, and controlling the rotation direction of liquid crystal molecules by changing the signal and voltage on the TFT, so as to control whether polarized light of each pixel point is emitted or not to achieve the purpose of display.

The existing LCD backlight module mostly adopts a common backlight mode to carry out structural design, not only adopts a scheme of backlight at two sides or backlight at four sides, but also adopts a scheme of backlight at four sides, and 2-3 welding feet are arranged at two sides of the backlight plate; meanwhile, the backlight plate with the structure is complex in design, the plastic molding process is difficult to guarantee, the phenomena that the periphery of an LCD is slightly bright and the middle of the LCD is slightly dark can be caused, the light is not uniform, the backlight effect is not good, and the quality can not be guaranteed; meanwhile, the scheme is difficult to disassemble and repair when problems occur.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide direct-emitting LCD backlight boards.

The utility model discloses the technical scheme who adopts as follows:

direct-emitting LCD backlight plates comprise an outer plate, a top cover, an adjusting screw and a light guide mechanism, wherein the light guide mechanism is arranged on the inner side of the outer plate, the top cover is arranged at the upper end of the outer plate, the outer plate comprises a back plate, side plates and a bottom plate, the side plates are arranged at two ends of the back plate, the bottom plate is arranged at the lower end of the back plate, a fixing frame is arranged on the inner side of the side plate, and the adjusting screw is arranged on the fixing frame;

the adjusting screw comprises an adjusting groove, a stud, threads and a connecting pin, the adjusting groove is formed in the front end of the stud, the threads are formed in the stud, the connecting pin is arranged at the rear end of the stud, and a fixing disc is arranged at the rear end of the connecting pin;

the light guide mechanism comprises a backlight plate, a circuit board, an LED lamp and a light guide plate, wherein the front end of the backlight plate is provided with the circuit board, the circuit board is provided with the LED lamp, and the front side of the circuit board is provided with the light guide plate.

Preferably: the light guide plate, the backlight plate and the circuit board are clamped on the top cover, the fixing frame and the bottom plate.

So set up, the light guide plate, the board in a poor light, the circuit board plays the light-emitting effect, through joint simple to operate.

Preferably, the fixing grooves are integrally formed with the top cover, the fixing frame and the bottom plate.

So set up, the fixed slot plays fixed action, and body shaping stability is high.

Preferably: the fixed disc is rotatably connected with the side plate, and the adjusting screw is connected with the fixed frame through the thread.

So set up, the fixed disk plays the connection effect, and it is good to rotate to connect the flexibility.

Preferably, the fixed disk, the connecting pin, the threads, the stud and the adjusting groove are integrally formed.

So set up, body forming process is convenient, and stability is good simultaneously.

Preferably: the fixing frame is connected with the side plate in a sliding mode.

So set up, the mount plays the regulation effect, and sliding connection makes things convenient for the adjustment.

Preferably: the top cover is connected to the back plate through the rotating shaft.

So set up, the top cap plays the fixed action, through simple to operate is connected to the pivot.

The utility model has the advantages that:

1. the adjusting screw is arranged, so that the convenience of adjustment is improved;

2. the self-locking performance is improved by utilizing thread adjustment;

3. utilize the top cap to encapsulate, later maintenance and change convenience.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification , which together with the following detailed description serve to explain the invention, but are not intended to limit the invention.

Fig. 1 is a schematic structural diagram of direct-emitting LCD backlight panels according to the present invention;

FIG. 2 is an exploded view of direct-emitting LCD backlight panels according to the present invention;

fig. 3 is a schematic view of the fixing frame structure of direct-emitting LCD backlight panels according to the present invention;

fig. 4 is a schematic view of the adjusting screw structure of direct-emitting LCD backlight panels according to the present invention.

The reference numerals are explained below:

1. an outer plate; 2. a top cover; 3. an adjusting screw; 4. a light guide mechanism; 5. a back plate; 6. a side plate; 7. a base plate; 8. a rotating shaft; 9. a backlight plate; 10. a circuit board; 11. an LED lamp; 12. a light guide plate; 13. a fixed mount; 14. fixing grooves; 15. an adjustment groove; 16. a stud; 17. a thread; 18. a connecting pin; 19. and (7) fixing the disc.

Detailed Description

The present invention will be further described in by way of example with reference to the accompanying drawings.

Examples

As shown in fig. 1-4, direct-emitting LCD backlight boards include an outer board 1, a top cover 2, an adjusting screw 3, and a light guide mechanism 4, wherein the light guide mechanism 4 is disposed inside the outer board 1, the outer board 1 plays a role in fixing, the light guide mechanism 4 plays a role in emitting light, the top cover 2 is disposed at the upper end of the outer board 1, the top cover 2 plays a role in fixing, the outer board 1 includes a back board 5, side boards 6, and a bottom board 7, the side boards 6 are disposed at two ends of the back board 5, the back board 5 plays a role in supporting, the bottom board 7 is disposed at the lower end of the back board 5, a fixing frame 13 is disposed inside;

the adjusting screw 3 comprises an adjusting groove 15, a stud 16, a thread 17 and a connecting pin 18, the adjusting groove 15 is arranged at the front end of the stud 16, the thread 17 is arranged on the stud 16, the connecting pin 18 is arranged at the rear end of the stud 16, and a fixing disc 19 is arranged at the rear end of the connecting pin 18;

all be provided with fixed slot 14 on top cap 2, mount 13, the bottom plate 7, be provided with pivot 8 between top cap 2 and the backplate 5, light guide mechanism 4 includes board 9 in a poor light, circuit board 10, LED lamp 11, light guide plate 12, and board 9 front end in a poor light is provided with circuit board 10, is provided with LED lamp 11 on the circuit board 10, and circuit board 10 front side is provided with light guide plate 12.

The working principle is as follows: insert board 9 in a poor light, circuit board 10, light guide plate 12 planking 1 inboard, be connected with mount 13 simultaneously, when the angle that needs adjustment circuit board 10, LED lamp 11, light guide plate 12, utilize the screwdriver to twist and move adjustment tank 15 and can quick adjustment, when having the damage in board 9 in a poor light, circuit board 10, light guide plate 12, open top cap 2, can carry out quick replacement.

The light guide plate 12, the backlight plate 9 and the circuit board 10 are clamped on the top cover 2, the fixing frame 13 and the bottom plate 7, the light guide plate 12, the backlight plate 9 and the circuit board 10 are convenient to mount through clamping, the fixing groove 14 is formed and fixed on the top cover 2, the fixing frame 13 and the bottom plate 7, the fixing groove 14 is formed and fixed, the body forming stability is high, the fixing disc 19 is rotatably connected to the side plate 6, the adjusting screw 3 is connected with the fixing frame 13 through the thread 17, the fixing disc 19 is good in connecting flexibility and rotation, the fixing disc 19, the connecting pin 18, the thread 17, the stud 16 and the adjusting groove 15 are formed and convenient to process body forming and good in stability, the fixing frame 13 is slidably connected to the side plate 6 and the fixing frame 13 is convenient to adjust, the top cover 2 is connected to the back plate 5 through the rotating shaft 8, the top.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge of those skilled in the art.

Claims

The direct-emitting LCD backlight boards are characterized by comprising an outer board (1), a top cover (2), adjusting screws (3) and a light guide mechanism (4), wherein the light guide mechanism (4) is arranged on the inner side of the outer board (1), the top cover (2) is arranged at the upper end of the outer board (1), the outer board (1) comprises a back board (5), side boards (6) and a bottom board (7), the side boards (6) are arranged at two ends of the back board (5), the bottom board (7) is arranged at the lower end of the back board (5), a fixing frame (13) is arranged on the inner side of each side board (6), and the adjusting screws (3) are arranged on the fixing frame (13);

the adjusting screw (3) comprises an adjusting groove (15), a stud (16), threads (17) and a connecting pin (18), the adjusting groove (15) is arranged at the front end of the stud (16), the threads (17) are arranged on the stud (16), the connecting pin (18) is arranged at the rear end of the stud (16), and a fixing disc (19) is arranged at the rear end of the connecting pin (18);

the LED backlight module is characterized in that the top cover (2), the fixing frame (13) and the bottom plate (7) are provided with fixing grooves (14), a rotating shaft (8) is arranged between the top cover (2) and the back plate (5), the light guide mechanism (4) comprises a backlight plate (9), a circuit board (10), an LED lamp (11) and a light guide plate (12), the circuit board (10) is arranged at the front end of the backlight plate (9), the LED lamp (11) is arranged on the circuit board (10), and the light guide plate (12) is arranged on the front side of the circuit board (10).
2. The direct-emitting LCD backlight board of claim 1, wherein the light guide plate (12), the backlight board (9), and the circuit board (10) are fastened to the top cover (2), the fixing frame (13), and the bottom board (7).
3. The direct-emitting LCD backlight unit of claim 1, wherein the fixing grooves (14) are integrally formed with the top cover (2), the fixing frame (13), and the bottom plate (7).
4. The direct-emitting LCD backlight board of claim 1, wherein the fixing plate (19) is rotatably connected to the side plate (6), and the adjusting screw (3) is connected to the fixing frame (13) through the screw thread (17).
5. The direct-emitting LCD backlight board of claim 1, wherein the fixing plate (19), the connecting pins (18), the threads (17), the studs (16), and the adjusting grooves (15) are integrally formed.
6. The direct-emitting LCD backlight unit as claimed in claim 1, wherein the fixing frame (13) is slidably connected to the side panel (6).
7. The direct-emitting LCD backlight unit of claim 1, wherein the top cover (2) is connected to the back plate (5) via the hinge (8).