CN212322549U

CN212322549U - Backlight module and display device with same

Info

Publication number: CN212322549U
Application number: CN202021131746.3U
Authority: CN
Inventors: 何东洋; 吴浩
Original assignee: Guangxi Century Innovation Display Electronics Co Ltd
Current assignee: Guangxi Century Innovation Display Electronics Co Ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-01-08
Anticipated expiration: 2030-06-18

Abstract

The utility model relates to a backlight module, it includes the light guide plate, sets up the light source of light guide plate income plain noodles one side holds the light source with the backplate of light guide plate, the light source with connect through heat conduction silica gel spare between the backplate, the light source orientation one side of heat conduction silica gel spare is equipped with first recess, heat conduction silica gel spare be equipped with the position of first recess and cross sectional shape convex part all corresponding, heat conduction silica gel spare orientation one side of backplate is equipped with the second recess, the backplate be equipped with the position of second recess and cross sectional shape lug all corresponding. The light guide plate is heated and expands, and when the light guide plate pushed against the light source, the heat conducting silica gel piece can be stressed and pushed backwards, so that the light guide plate is prevented from crashing the lamp strip, the effect of design protection is achieved, meanwhile, heat is conducted to the back plate through the heat conducting silica gel piece, heat exchange is carried out through the back plate and external air to achieve the heat dissipation effect, the heat dissipation performance of the backlight module is improved, and the assembly stability and the service life inside the backlight module are improved.

Description

Backlight module and display device with same

Technical Field

The utility model relates to a show technical field, especially a backlight unit and display device who has this backlight unit.

Background

Display devices are widely used in learning, entertainment, office, and the like. The conventional display product mainly contains the light source, the light guide plate, and display panel shows the normal work operation of product, and the aluminium alloy frame is fixed to the light source, and after the production of heat, the light guide plate is heated can the inflation, and the light guide plate inflation back can hit the light source bad, leads to the single circuit different, and screen local range is not bright, and the result of use is watched in the influence, and the light that such display device sees out is inhomogeneous, and this has influenced the bandwagon effect, and customer experience is poor.

Therefore, the backlight module and the display device with the backlight module are provided, and the light source is fixed by using the heat-conducting silica gel piece.

Disclosure of Invention

The utility model aims at providing a display device to solve the light guide plate and be heated the inflation and hit bad light source, cause the local not bright problem of screen.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a display device, comprising: the light guide plate, the light source that sets up light guide plate income plain noodles one side, hold the light source with the backplate of light guide plate, the light source with connect through heat conduction silica gel spare between the backplate, the light source is towards one side of heat conduction silica gel spare is equipped with first recess, heat conduction silica gel spare is equipped with the position of first recess and cross sectional shape all corresponding convex part, heat conduction silica gel spare is towards one side of backplate is equipped with the second recess, the backplate is equipped with the position of second recess and cross sectional shape all corresponding lug.

As a further optimization, the back plate is made of rubber.

As a further optimization, the light guide plate further comprises a reflecting sheet, and the reflecting sheet is arranged on one side back to the light emergent surface of the light guide plate.

As a further optimization, the light guide plate further comprises an optical film, and the optical film is arranged on the light-emitting surface of the light guide plate.

A display device comprises the backlight module.

Compared with the prior art, the utility model discloses an advantage is with positive effect: the utility model discloses prevent that the light guide plate from being heated the inflation and damaging the light source, show that product normal operating produces the heat, the light guide plate is heated the inflation, when the light guide plate pushes up the light source, push away behind the heat conduction silica gel spare meeting atress, prevent that the light guide plate from hitting the light source, play the effect of design protection, use the fixed light source of heat conduction silica gel spare, a heat conduction silica gel spare for play fixed and radiating effect, the heat conducts on the backplate through heat conduction silica gel spare, and carry out the heat exchange through backplate and outside air and reach the heat dissipation utility, improve backlight unit's heat dispersion, improve inside subassembly stability and life of backlight unit.

Drawings

Fig. 1 is a schematic view of a display device according to the present invention;

FIG. 2 is an exploded view of a display device;

in the figure: 1. a light guide plate; 2. a light source; 3. a back plate; 4. a thermally conductive silicone member; 5. a reflective sheet; 6. an optical film; 7. a display screen; 8. a middle frame; 9. and (4) a front frame.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The utility model discloses a backlight module, as shown in fig. 1, be in including light guide plate 1, setting the light source 2 of light guide plate income plain noodles one side holds light source 2 with backplate 3 of light guide plate 1, light source 2 with connect through heat conduction silica gel spare 4 between the

backplate

3, 2 orientations of light source one side of heat conduction silica gel spare 4 is equipped with first recess, heat conduction silica gel spare 4 be equipped with the position of first recess and the all corresponding convex part of cross-sectional shape, heat conduction silica gel spare 4 orientation one side of backplate 3 is equipped with the second recess, backplate 3 be equipped with the position of second recess and the all corresponding lug of cross-sectional shape. Fixed light source 2 and backplate 3 are connected to heat conduction silica gel spare 4, the convex part structure of heat conduction silica gel spare 4 and the cooperation of the first recess of light source 2, the cooperation of the second recess of heat conduction silica gel spare 4 and the lug of backplate 3, make backlight unit's erection joint more stable, preferably, the cross sectional shape of first recess, convex part, second recess and lug is the rectangle, it is more convenient to make backlight unit's unit mount like this, reduce the processing technology of heat conduction silica gel spare simultaneously, save the cost. The heat conduction silica gel spare has splendid heat conductivity, good electricity absolutely, fine stability in use and elasticity, and when light source normal operating produced the heat, the light guide plate was heated the inflation, and when the light guide plate pushed up the light source, the heat conduction silica gel spare can be pushed away after the atress, prevented that the light guide plate from crashing the light source, played the effect of design protection. When the heat-conducting silica gel piece is used as a new structure for fixing the light source and the back plate, the heat can be dissipated by the heat-conducting silica gel piece, the temperature inside the backlight module is reduced, the heat dissipation efficiency of the backlight module is improved, and the stability and the service life of components inside the backlight module are improved. It should be noted that other materials with good thermal conductivity and elasticity can be substituted for the thermal conductive silicone member, and the protection scope of the present invention is not described in more detail herein.

Further, the back plate 3 is made of rubber, as shown in fig. 1, the heat-conducting silicone member directly contacts and connects the light source and the back plate, the heat on the light source is transferred to the back plate by the heat-conducting silicone member, the back plate is made of aluminum or other materials with good heat dissipation performance, or the back plate is made of rubber, and the heat dissipation path of the backlight module is increased, so that the heat dissipation efficiency is improved.

Furthermore, the backlight module also comprises a reflecting sheet 5, wherein the reflecting sheet 5 is arranged on one side back to the light-emitting surface of the light guide plate 1. As shown in fig. 1, the reflector plate can introduce the scattered light into the light guide plate again, so that the light guide plate can improve the utilization rate of the light source, reduce the light energy loss and achieve better display effect.

Further, the backlight module also comprises an optical diaphragm 6, wherein the optical diaphragm 6 is arranged on the light-emitting surface of the light guide plate 1. As shown in fig. 1, the optical film forms diffuse reflection to reflect and diffuse light uniformly, so that the optical film has a good light diffusion effect, improves the uniformity of light beams, and achieves a better display effect.

A display device comprises the backlight module. The display device can be a computer, a mobile phone, a camera and the like, and is particularly suitable for industrial and vehicle-mounted display products. Fig. 1 and fig. 2 are schematic structural diagrams of a display device according to an embodiment of the present application. In this embodiment, the display device includes backlight unit, backlight unit includes backplate 3, light guide plate 1, light source 2, heat-conducting piece 4, reflector plate 5, optics diaphragm 6, and display device still includes center 8, display screen 7, preceding frame 9, center 8, preceding frame 9 and backplate 3 cooperation form the space that can hold light source 2, light guide plate 1 and display screen 7, and backplate 3, reflector plate 5, light guide plate 1, optics diaphragm 6, center 8, display screen 7 set up from down to top in proper order. It should be noted that the display device in this embodiment is only one display device including the backlight module, and other display devices including the backlight module are also within the scope of the present invention, and not described in more detail herein.

The above detailed description of the embodiments of the present invention has been made in conjunction with the accompanying drawings and the working principle of the present invention has been explained, but the present invention is not limited thereto, and various changes made within the knowledge range possessed by the skilled in the art without departing from the gist of the present invention are all within the protection scope of the present invention.

Claims

1. A backlight module, comprising: the light guide plate, the light source that sets up light guide plate income plain noodles one side, hold the light source with the backplate of light guide plate, the light source with connect through heat conduction silica gel spare between the backplate, the light source is towards one side of heat conduction silica gel spare is equipped with first recess, heat conduction silica gel spare is equipped with the position of first recess and cross sectional shape all corresponding convex part, heat conduction silica gel spare is towards one side of backplate is equipped with the second recess, the backplate is equipped with the position of second recess and cross sectional shape all corresponding lug.

2. A backlight module according to claim 1, wherein: the back plate is made of rubber.

3. A backlight module according to claim 1 or 2, characterized in that: the light guide plate is characterized by further comprising a reflecting sheet, wherein the reflecting sheet is arranged on one side back to the light emergent surface of the light guide plate.

4. A backlight module according to claim 3, wherein: the light guide plate is characterized by further comprising an optical film, and the optical film is arranged on the light emitting surface of the light guide plate.

5. A display device comprising the backlight module according to any one of claims 1-4.