CN216647028U

CN216647028U - Circular backlight module

Info

Publication number: CN216647028U
Application number: CN202123218410.8U
Authority: CN
Inventors: 陈龙
Original assignee: Anhui Dixian Electronic Co ltd
Current assignee: Anhui Dixian Electronic Co ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-05-31
Anticipated expiration: 2031-12-21

Abstract

The utility model provides a circular backlight module, which comprises a back plate, wherein the top end of the back plate is provided with a light scattering component, and the outer side walls of the back plate and the light scattering component are provided with iron frames; the light scattering assembly comprises an FPC (flexible printed circuit) circuit board, the FPC circuit board is attached to the top end of the back plate through FPC heat-conducting glue, the top end of the FPC circuit board is connected with a light guide plate, the side wall of the light guide plate is connected with a plurality of LED lamps in an upward mode, the top end of the light guide plate is connected with a diffusion film, the top end of the diffusion film is connected with a first light-adding film, and the top end of the first light-adding film is connected with a light-adding plate; in backplate and astigmatism subassembly joint chase, make things convenient for backlight unit's dismantlement and installation, backplate and astigmatism subassembly become circularly simultaneously, and in backplate and astigmatism subassembly were fixed chase, can not take place to rotate to make backlight unit can send stable circular light, the light degree of consistency of improvement optimizes the display effect of display screen.

Description

Circular backlight module

Technical Field

The utility model belongs to the technical field of backlight modules, and particularly relates to a circular backlight module.

Background

The backlight module is a device for providing backlight source for liquid crystal display, instrument and meter, so the appearance of the backlight module needs to match with the appearance of the display or the instrument and meter, the liquid crystal display and the like have round and rectangular structures, so the backlight module also needs to be matched with each other, and meanwhile, some indexes of the backlight module such as brightness, uniformity and the like have direct influence on the relevant performance of the liquid crystal display screen.

In the prior art, the uniformity of light provided by the backlight module is poor, the display effect of the display screen is influenced, and the backlight module is very easy to shake when in use, so that the display effect of the display screen is influenced; the backlight module has poor heat dissipation effect, thereby reducing the service life of the module.

Disclosure of Invention

The utility model provides a circular backlight module, and aims to solve the problems in the prior art.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a circular backlight module comprises a back plate, wherein the top end of the back plate is provided with a light scattering assembly, and the outer side walls of the back plate and the light scattering assembly are provided with iron frames;

the astigmatism subassembly includes the FPC circuit board, the FPC circuit board passes through the FPC heat-conducting glue laminating on the top of backplate, the top of FPC circuit board is connected with the light guide plate, the lateral wall of light guide plate goes upward to be connected with a plurality of LED lamps, the top of light guide plate is connected with the diffusion barrier, the top of diffusion barrier is connected with first membrane of adding lustre to, the top of first membrane of adding lustre to is connected with the board of adding lustre to, the top of adding lustre to is connected with the DBEF membrane of adding lustre to.

Preferably, a plurality of the LED lamps are attached to the side wall of the light guide plate in an arc shape.

Preferably, the outer side wall of the iron frame is connected with a rubber frame.

Preferably, the rubber frame is provided with a plurality of first through grooves.

Preferably, a plurality of second through grooves are formed in the iron frame, and the first through grooves are matched with the second through grooves.

Preferably, a plurality of bosses are connected to the inner side wall of the lower portion of the iron frame.

Preferably, the side walls of the rubber frame and the back plate are respectively provided with a positioning piece.

The utility model has the beneficial effects that: the back plate and the light scattering assembly are clamped in the iron frame, so that the backlight module is convenient to detach and mount, the back plate and the light scattering assembly are round, and the back plate and the light scattering assembly are fixed in the iron frame and cannot rotate, so that the backlight module can emit stable round light, the light uniformity is improved, and the display effect of the display screen is optimized; the heat dissipation is carried out through the through grooves, the heat dissipation effect of the backlight module is optimized, the component loss in the use process is reduced, and the service life of the equipment is prolonged; the positioning piece plays a positioning role in the assembling process of the backlight module, so that the assembling accuracy is improved.

Drawings

FIG. 1 is a schematic illustration of an explosive structure according to the present invention;

FIG. 2 is a schematic structural diagram of an iron frame and a rubber frame according to the present invention;

FIG. 3 is a schematic view of the iron frame structure of the present invention;

FIG. 4 is a top view of FIG. 3;

in the figure: 1-a back plate, 31-an FPC (flexible printed circuit) board, 32-a light guide plate (32), 33-an LED (light-emitting diode) lamp, 34-a diffusion film, 35-a first brightness enhancement film, 36-a brightness enhancement film, 37-a DBEF (digital still camera) brightness enhancement film, 4-an iron frame, 5-a glue frame, 6-a first through groove, 7-a second through groove, 8-a boss and 9-a positioning piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a circular backlight module, comprising: a circular backlight module comprises a back plate 1, wherein the top end of the back plate 1 is provided with a light scattering assembly, the back plate 1 and the light scattering assembly are clamped in an iron frame 4, the backlight module is convenient to detach and mount, meanwhile, the back plate 1 and the light scattering assembly are circular, and the back plate 1 and the light scattering assembly are fixed in the iron frame 4 and cannot rotate, so that the backlight module can emit stable circular light, the light uniformity is improved, and the display effect of a display screen is optimized;

the astigmatism subassembly includes FPC circuit board 31, FPC circuit board 31 passes through the laminating of FPC heat-conducting resin on the top of backplate 1, the top of FPC circuit board 31 is connected with light guide plate 32, the lateral wall of light guide plate 32 goes up to be connected with a plurality of LED lamps 33, the top of light guide plate 32 is connected with diffusion barrier 34, the top of diffusion barrier 34 is connected with first membrane 35 that adds lustre to, the top of first membrane 35 is connected with membrane 36 that adds lustre to, the top of membrane 36 that adds lustre to is connected with DBEF membrane 37 that adds lustre to, FPC circuit board 31, light guide plate 32, the FPC circuit board 32, diffusion barrier 34, first membrane 35 that adds lustre to, 36 and DBEF membrane 37 that adds lustre to mutually support, improve light degree of consistency and luminance, optimize the display effect of display screen, thereby improve user experience.

In the present embodiment, the LED lamps 33 are attached to the side wall of the light guide plate 32 in an arc shape, so as to provide a uniform light source for the backlight module and provide a display effect.

Be connected with gluey frame 5 on the lateral wall of chase 4, play fixed and the effect of bearing to the astigmatic subassembly through gluing frame 5 and chase 4, glue the frame parcel simultaneously on the lateral wall of chase 4, prevent that the hardness of chase 4 from too big other components and parts of easy damage.

Specifically, glue and seted up a plurality of first logical grooves 6 on the frame 5, seted up a plurality of second on the chase 4 and led to groove 7, first logical groove 6 and the 7 looks adaptations of second to dispel the heat through leading to the groove, optimize backlight unit's radiating effect, reduce the module loss in the use, improve equipment's life.

Fixedly connected with a plurality of bosss 8 on the inside wall of 4 lower parts of chase, a plurality of bosss evenly distributed are on the inside wall of chase 4 to play support and spacing effect to the astigmatism subassembly.

The side walls of the rubber frame 5 and the back plate 1 are respectively connected with a plurality of positioning pieces 9, and the positioning pieces 9 play a role in positioning in the assembling process of the backlight module, so that the assembling accuracy is improved.

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 utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a circular backlight unit, includes backplate (1), its characterized in that: the top end of the back plate (1) is provided with an astigmatism component, and the outer side walls of the back plate (1) and the astigmatism component are provided with iron frames (4);

the astigmatism subassembly includes FPC circuit board (31), FPC circuit board (31) are through the laminating of FPC heat-conducting resin on the top of backplate (1), the top of FPC circuit board (31) is connected with light guide plate (32), the lateral wall of light guide plate (32) goes upward and is connected with a plurality of LED lamps (33), the top of light guide plate (32) is connected with diffusion barrier (34), the top of diffusion barrier (34) is connected with first membrane (35) that adds lustre to, the top of first membrane (35) that adds lustre to is connected with and adds lustre to board (36), the top of adding lustre to board (36) is connected with DBEF membrane (37) that adds lustre to.

2. The circular backlight module as claimed in claim 1, wherein: the LED lamps (33) are attached to the side wall of the light guide plate (32) in an arc shape.

3. The circular backlight module as claimed in claim 1, wherein: and the outer side wall of the iron frame (4) is connected with a rubber frame (5).

4. The circular backlight module as claimed in claim 3, wherein: a plurality of first through grooves (6) are formed in the rubber frame (5).

5. The circular backlight module as claimed in claim 4, wherein: a plurality of second through grooves (7) are formed in the iron frame (4), and the first through grooves (6) are matched with the second through grooves (7).

6. The circular backlight module as claimed in claim 5, wherein: and a plurality of bosses (8) are connected on the inner side wall of the lower part of the iron frame (4).

7. The circular backlight module as claimed in claim 6, wherein: and positioning parts (9) are respectively arranged on the side walls of the rubber frame (5) and the back plate (1).