CN217060697U

CN217060697U - Backlight source, backlight module and display device

Info

Publication number: CN217060697U
Application number: CN202121946723.2U
Authority: CN
Inventors: 冉文婷; 叶旭华
Original assignee: Huizhou Shiwei New Technology Co Ltd
Current assignee: Huizhou Shiwei New Technology Co Ltd
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2022-07-26
Anticipated expiration: 2031-08-18

Abstract

The embodiment of the application provides a backlight source, backlight unit and display device, and this backlight source includes: the lampshade comprises a lampshade and a light-emitting element arranged in a cavity of the lampshade, light emitted by the light-emitting element is emitted out of the lampshade, a rough structure is arranged in a near-light area of the lampshade, which is close to the light-emitting element, and the light emitted by the light-emitting element is scattered on the rough structure. The backlight source can carry out secondary distribution on light rays emitted by the light-emitting elements, and can solve the problems that the energy of the light-emitting elements in densely arranged areas is too concentrated, and the brightness of the edge far light end is very low.

Description

Backlight source, backlight module and display device

Technical Field

The embodiment of the application relates to the technical field of display, in particular to a backlight source, a backlight module and a display device.

Background

The backlight module is one of the important components of the lcd, and since the liquid crystal itself does not emit light, the backlight module is required to provide sufficient brightness and uniformly distributed light for the lcd, so that the lcd can normally display images. At present, the display technology of the lcd has already matured, and especially, the design of the backlight module has been greatly developed. The backlight module can be applied to liquid crystal display devices such as liquid crystal displays and liquid crystal televisions, and can also provide light sources for display devices such as digital photo frames, electronic paper and mobile phones. The backlight module is divided into an edge type backlight module and a direct type backlight module according to the position difference of the light source. In the conventional LED backlight, LEDs are linearly arranged on a back plate of a light bar. When the backlight source is applied to a 3D display device, the LEDs all have a certain light-emitting angle (generally 120 degrees), so that the LEDs need to be arranged on the back plate of the light bar, otherwise, the energy is too concentrated in the densely arranged area, and the brightness of the far end of the edge is very low, so that the whole picture is not uniform.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a backlight source, a backlight module and a display device, wherein the backlight source can carry out secondary distribution on light emitted by light emitting elements, and the problems that the energy of the light emitting elements in densely arranged areas is too concentrated and the brightness of the edge far light end is very low can be solved.

The embodiments of the present application provide a backlight source,

the method comprises the following steps: the lamp shade, set up in light-emitting element and end liner in the cavity of lamp shade, the light outgoing of light-emitting element transmission in outside the lamp shade is close to light-emitting element's short-distance beam region is provided with coarse structure, the light of light-emitting element transmission is in take place the scattering on the coarse structure, the lamp shade with light-emitting element is fixed in on the end liner.

In some embodiments, a thickness of a high beam region of the lamp housing away from the light emitting element is smaller than a thickness of a low beam region close to the light source.

In some embodiments, the thickness of the globe decreases from the low beam region to the high beam region.

In some embodiments, the roughness structure is located inside the light cover, and the roughness structure is a rough particle fixed to a low-beam region of the light cover.

In some embodiments, the roughness is on the surface of the light cover, and the roughness is a protrusion structure disposed in a low beam region protruding from the light cover.

In some embodiments, the backlight further comprises: the secondary lens is positioned between the lampshade and the light-emitting element, and the light-emitting element is arranged in an accommodating space formed by the bottom lining and the secondary lens.

In some embodiments, the secondary lens is provided with a first concave part, a second concave part and a side surface, wherein the first concave part and the second concave part are arranged oppositely up and down;

when the light-emitting element emits light, the light irradiates the surface of the first depressed part, is refracted on the surface of the first depressed part and then enters the secondary lens, and is refracted and totally reflected on the surface of the second depressed part, so that the light is emitted from the surface or the side surface of the second depressed part.

The embodiment of the present application further provides a backlight module, including backplate, light source module and diffuser plate, the backplate the light source module with the diffuser plate stacks gradually the setting, the light source module includes: in the above embodiments, the plurality of backlight sources are arranged on the back plate in a single straight line.

The embodiment of the application further provides a display device, the display device comprises the backlight module, the circuit board and the display module, and the backlight module, the circuit board and the display module are electrically connected.

An embodiment of the present application provides a backlight, which includes: the lampshade comprises a lampshade, a light-emitting element and a bottom lining, wherein the light-emitting element is arranged in a cavity of the lampshade, light emitted by the light-emitting element is emitted out of the lampshade, a rough structure is arranged in a near-light area of the lampshade, which is close to the light-emitting element, the light emitted by the light-emitting element is scattered on the rough structure, and the lampshade and the light-emitting element are fixed on the bottom lining. The backlight source can carry out secondary distribution on light rays emitted by the light-emitting elements, and can solve the problems that the energy of the light-emitting elements in densely arranged areas is too concentrated, and the brightness of the edge far light end is very low.

Drawings

The technical solutions and other advantages of the present application will become apparent from the following detailed description of specific embodiments of the present application when taken in conjunction with the accompanying drawings.

Fig. 1 is a schematic view of a backlight provided in an embodiment of the present application.

Fig. 2 is a schematic view of a lamp shade provided in an embodiment of the present application.

Fig. 3 is a schematic view of a lamp shade provided in an embodiment of the present application.

Fig. 4 is a schematic view of a backlight module according to an embodiment of the present disclosure.

Fig. 5 is a schematic view of a backlight module according to an embodiment of the present disclosure.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all 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 application.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present application, it should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, a fixed connection, a detachable connection, or an integral connection; may be mechanically, electrically or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as the case may be.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the application. To simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize the application of other processes and/or the use of other materials.

The embodiment of the application provides a backlight source, which can perform secondary distribution on light rays emitted by light emitting elements and can solve the problems that the energy of the light emitting elements in densely arranged areas is too concentrated and the brightness of the far light end at the edge is very low. The backlight source can be used in cooperation with a terminal, such as a smart phone, a tablet computer, a notebook computer or a personal computer. The seamless tiled display is described in detail below. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.

The present application is described in detail below with reference to the attached drawings and the detailed description.

Referring to fig. 1, fig. 1 is a schematic view of a backlight provided in an embodiment of the present application, where the backlight includes: the light emitting device comprises a lampshade 200, a light emitting element 100 and a bottom lining, wherein the light emitting element 100 is arranged in a cavity of the lampshade 200, light emitted by the light emitting element 100 is emitted out of the lampshade 200, a rough structure 211 is arranged in a low-beam region 210 of the lampshade 200 close to the light emitting element 100, the light emitted by the light emitting element 100 is scattered on the rough structure 211, and the lampshade 200 and the light emitting element 100 are fixed on the bottom lining 400.

The backlight source can carry out secondary distribution on light rays emitted by the light-emitting elements, and can solve the problems that the energy of the light-emitting elements in densely arranged areas is too concentrated, and the brightness of the far light end at the edge is very low.

In some embodiments, the thickness of the high beam region 220 of the light cover 200 away from the light emitting element 100 is less than the thickness of the low beam region 210 near the light emitting element 100.

Specifically, the thickness of the lamp cover 200 gradually decreases from the low beam region 210 to the high beam region 220, and thus the influence of the lamp cover 200 on the light emitted to the far end by the light emitting element 100 can be reduced.

In some embodiments, the roughness 211 is located inside the lampshade 200, and the roughness 211 is coarse particles fixed to the low beam region 210 of the lampshade 200, wherein the roughness 211 may be spherical particles.

Specifically, the rough particles may be fixed inside the main body of the lamp cover 200 by a connection method such as glue.

In some embodiments, referring to fig. 2, the roughness is on the inner surface of the lampshade, and the roughness is a protrusion 212 disposed in the low beam region protruding from the lampshade.

In some embodiments, referring to fig. 3, the roughness is on the outer surface of the lampshade, and the roughness is a raised structure 212 protruding from the low-beam region of the lampshade.

Specifically, the protruding structure is not limited to a specific shape and is used for scattering light emitted by the light emitting element, and preferably, the protruding structure is an arc-shaped protruding structure, and the protruding structure may be integrally formed with the lamp cover 200. Therefore, the light emitted by the light emitting element 100 can be distributed through the lampshade 200, and uniform light emission and diffusion can be realized, and compared with the backlight source in the prior art that two or more backlight sources need to be arranged on the backlight source, the number of the arranged backlight sources can be reduced in the embodiment, so that the backlight source can be arranged on the back plate in a single straight line and can also emit light and diffuse uniformly, and the production cost is reduced.

In some embodiments, the lampshade 200 is made of a transparent material, and the transparent material includes: polymethyl methacrylate, polycarbonate, polystyrene and glass.

In some embodiments, the light emitting element 100 and the lamp cover 200 can be fixed on the substrate 400. Among them, the light emitting element 100 may include: light emitting diodes, which may be fixed to the substrate 400 by means of soldering, for example: and (4) spot tin welding.

In some embodiments, the backlight further comprises a secondary lens 300, the secondary lens 300 is located between the lamp cover 200 and the light emitting element 100, and the light emitting element 100 is disposed in the accommodating area of the secondary lens 300.

In some embodiments, a plurality of feet may be disposed on the substrate 400, UV glue may be applied to the feet, and the secondary lens 300 may be fixedly coupled to the substrate 400 via the UV glue, and preferably, four feet may be disposed on the substrate 400.

In some embodiments, the secondary lens is made of polymethyl methacrylate or polycarbonate or glass.

Specifically, the secondary lens 300 is provided with a first concave portion and a second concave portion, the first concave portion and the second concave portion are arranged in an up-down opposite manner, light emitted by the light emitting element first irradiates the surface of the first concave portion, the light is refracted on the surface of the first concave portion, then enters the secondary lens and is refracted and totally reflected on the surface of the second concave portion, a part of the light is emitted from the surface of the second concave portion, and the other part of the light is totally reflected on the side surface of the secondary lens 300, emitted from the side surface, or totally reflected on the substrate, and then reflected again to the surface or the side surface of the second concave portion by the substrate.

More specifically, the shape of the first recess is composed of two parts, namely a paraboloid and a vertical surface. The second depressed part and the lens have the same central axis, the top of the second depressed part is arranged opposite to the top of the first depressed part, the curved line of the second depressed part is formed by rotation of a quadratic curve, and the side surface of the quadratic lens can be formed by rotation of two quadratic curves and an inclined plane. The secondary lens 300 can realize the thinning of the backlight module without increasing the number of the light emitting diode light source devices in the backlight module of the liquid crystal display, and ensure the uniform light emission and diffusion of the backlight module.

In some embodiments, the backlight source provided by the present embodiment can be applied to a direct type backlight module, and can also be applied to an edge type backlight module.

An embodiment of the present application provides a backlight, which includes: the lampshade comprises a lampshade, a light-emitting element and a bottom lining, wherein the light-emitting element is arranged in a cavity of the lampshade, light emitted by the light-emitting element is emitted out of the lampshade, a rough structure is arranged in a near light area of the lampshade, which is close to the light-emitting element, the light emitted by the light-emitting element is scattered on the rough structure, and the lampshade and the light-emitting element are fixed on the bottom lining. The backlight source can carry out secondary distribution on light rays emitted by the light emitting elements, and can solve the problems that the energy of the light emitting elements in densely arranged areas is too concentrated and the brightness of the edge far light end is very low.

The embodiment of the present application further provides a backlight module, please refer to fig. 4 and fig. 5, the backlight module includes a back plate 10, a light source module 20 and a diffusion plate 40, the light source module 20 includes: in the above embodiments, the backlight sources are arranged on the back plate 10 in a single straight line.

In some embodiments, the backlight module may be a direct-type backlight module, and the back plate 10, the light source module 20 and the diffusion plate 40 are sequentially stacked.

In some embodiments, the light source module is fixed on the back plate 10, and can be fixed on the back plate 10 by a fastening mechanism 30, or can be fixedly connected by a fastening groove, a fastening, glue, or welding. The housing is provided with support structures 50 to support the diffuser plate 40 to prevent deformation of the diffuser plate due to cold and hot shrinkage, vibration during transportation. The diffusion plate 40 is provided with a plurality of optical dots for homogenizing the light emitted from the light source module.

In some embodiments, the backlight includes: the lampshade, the light-emitting element and the bottom lining are arranged in the cavity of the lampshade, light emitted by the light-emitting element is emitted out of the lampshade, a rough structure is arranged in a near light area of the lampshade, which is close to the light-emitting element, light emitted by the light-emitting element is scattered on the rough structure, and the lampshade and the light-emitting element are fixed on the bottom lining.

In some embodiments, the thickness of the light cover is smaller in a high beam region away from the light emitting element than in a low beam region close to the light emitting element.

Specifically, the thickness of the shade gradually decreases from the low beam region to the high beam region, and therefore the influence of the shade on the light emitted to the far end by the light emitting element can be reduced.

In some embodiments, the roughness structure is located inside the lampshade, and the roughness structure is coarse particles fixed in a low-beam region of the lampshade, wherein the roughness structure can be spherical particles.

Specifically, the rough particles may be fixed inside the lampshade main body by glue or the like.

In some embodiments, the roughness structure is on the outer surface or the inner surface of the lampshade and the roughness structure is a convex structure arranged in a low-beam region protruding out of the lampshade.

Specifically, the shape of the protruding structure is not limited, and is used for scattering light emitted by the light emitting element, and preferably, the protruding structure is an arc-shaped protruding structure, and the protruding structure may be integrally formed with the lamp shade. Therefore, the light emitted by the light-emitting elements can be distributed through the lampshade, the uniform light emission and diffusion can be realized, and compared with the backlight source in the prior art, two or more backlight sources are required to be arranged on the backlight source, the number of the arranged backlight sources can be reduced, so that the backlight source is arranged on the back plate in a single straight line, the uniform light emission and diffusion can be realized, and the production cost is reduced.

In some embodiments, the lamp cover is made of a transparent material, and the transparent material comprises: polymethyl methacrylate, polycarbonate, polystyrene and glass.

In some embodiments, the light emitting element and the light cover may be secured to the substrate. Wherein the light emitting element may include: the light-emitting diode can be fixed on the bottom lining by welding, such as: and (4) soldering the spot tin.

In some embodiments, the backlight further comprises a secondary lens positioned between the cover and the light emitting element, and the light emitting element is disposed within the receiving area of the secondary lens.

In some embodiments, a plurality of feet may be provided on the substrate, a UV glue may be applied to the feet, and a secondary lens may be fixedly attached to the substrate via the UV glue, preferably four feet are provided on the substrate.

Specifically, the secondary lens is provided with a first concave portion and a second concave portion, the first concave portion and the second concave portion are arranged in an up-down opposite manner, light emitted by the light emitting element firstly irradiates the surface of the first concave portion, after the light is refracted on the surface of the first concave portion, the light enters the secondary lens and is refracted and totally reflected on the surface of the second concave portion, a part of the light is emitted from the surface of the second concave portion, and the other part of the light is totally reflected on the side surface of the secondary lens, emitted from the side surface, or totally reflected on the substrate and then reflected again to the surface or the side surface of the second concave portion by the substrate.

More specifically, the shape of the first concave part is composed of a paraboloid and a vertical surface. The second depressed part and the lens have the same central axis, the top of the second depressed part and the top of the first depressed part are arranged oppositely, the curved line of the second depressed part is formed by rotation of a quadratic curve, and the side surface of the secondary lens can be formed by rotation of two quadratic curves and an inclined plane. The secondary lens can realize the thinning of the backlight module without increasing the number of the light-emitting diode light source devices in the backlight module of the liquid crystal display, and ensure the uniform light-emitting diffusion of the backlight module.

The embodiment of the application provides a backlight unit, this backlight unit includes backplate, light source module and diffuser plate, and this light source module includes: a plurality of backlight, this backlight is single straight line and arranges on this backplate. Wherein, this backlight includes: the lampshade comprises a lampshade, a light-emitting element and a bottom lining, wherein the light-emitting element is arranged in a cavity of the lampshade, light emitted by the light-emitting element is emitted out of the lampshade, a rough structure is arranged in a near light area of the lampshade, which is close to the light-emitting element, the light emitted by the light-emitting element is scattered on the rough structure, and the lampshade and the light-emitting element are fixed on the bottom lining. The backlight module can perform secondary distribution on light emitted by the light-emitting elements, and can solve the problems that the energy of the light-emitting elements in densely arranged areas is too concentrated and the brightness of the edge far light end is very low.

The embodiment of the application also provides a display device which comprises the backlight module, the circuit board and the display module, wherein the backlight module, the circuit board and the display module are electrically connected.

Specifically, the circuit board is used for driving the backlight module and the display module.

In some embodiments, the backlight module includes a back plate, a light source module and a diffusion plate, the light source module includes: in the above embodiments, the backlight sources are arranged on the back plate in a single straight line.

In some embodiments, the backlight module is a direct-type backlight module, and the back plate, the light source module and the diffusion plate are sequentially stacked.

Specifically, the light source module is fixed on the back plate and can be fixedly connected through a clamping groove, a buckle, glue, welding or other modes. The back plate is provided with a supporting structure to support the diffusion plate and prevent the diffusion plate from being deformed due to cold and hot shrinkage expansion and oscillation in the transportation process. The diffusion plate is provided with a plurality of optical net points for homogenizing the light rays emitted by the light source module.

Specifically, the thickness of the shade is gradually reduced from the low beam region to the high beam region, and thus the influence of the shade on the light emitted to the far end by the light emitting element can be reduced.

In some embodiments, the roughness structure is on the outer surface or the inner surface of the lampshade and the roughness structure is a raised structure arranged in a low-beam region protruding out of the lampshade.

In some embodiments, the light emitting element and the light cover may be secured to the substrate. Wherein the light emitting element may include: the light-emitting diode can be fixed on the bottom lining by welding, such as: and (4) spot tin welding.

In some embodiments, a plurality of feet may be disposed on the substrate, a UV glue may be applied to the feet, and a secondary lens may be fixedly attached to the substrate through the UV glue, preferably, four feet are disposed on the substrate.

Specifically, the secondary lens is provided with a first concave portion and a second concave portion, the first concave portion and the second concave portion are arranged opposite to each other in a vertical direction, light emitted by the light-emitting element first irradiates the surface of the first concave portion, the light is refracted on the surface of the first concave portion, then enters the secondary lens and is refracted and totally reflected on the surface of the second concave portion, a part of the light is emitted from the surface of the second concave portion, and the other part of the light is totally reflected on the surface of the second concave portion to the side surface of the secondary lens, emitted from the side surface, or totally reflected to the substrate and then reflected to the surface or the side surface of the second concave portion again by the substrate.

More specifically, the shape of the first concave part is composed of a paraboloid and a vertical surface. The second depressed part and the lens have the same central axis, the top of the second depressed part is arranged opposite to the top of the first depressed part, the curved line of the second depressed part is formed by rotation of a quadratic curve, and the side surface of the quadratic lens can be formed by rotation of two quadratic curves and an inclined plane. The secondary lens can realize the thinning of the backlight module without increasing the number of the light emitting diode light source devices in the liquid crystal screen backlight module, and ensure the uniform light emitting diffusion of the backlight module.

The embodiment of the application provides a display device, and the display device comprises a backlight module, a circuit board and a display module in the embodiment, wherein the backlight module, the circuit board and the display module are electrically connected. Wherein, this backlight unit includes backplate, light source module and diffuser plate, and this light source module includes: a plurality of backlight, this backlight is single straight line and arranges on this backplate. Wherein, this backlight includes: the lampshade comprises a lampshade, a light-emitting element and a bottom lining, wherein the light-emitting element is arranged in a cavity of the lampshade, light emitted by the light-emitting element is emitted out of the lampshade, a rough structure is arranged in a near light area of the lampshade, which is close to the light-emitting element, the light emitted by the light-emitting element is scattered on the rough structure, and the lampshade and the light-emitting element are fixed on the bottom lining. The display device can carry out secondary distribution on light emitted by the light-emitting elements, and can solve the problems that the energy of the light-emitting elements in densely arranged areas is too concentrated and the brightness of the edge far light end is very low.

In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.

The backlight source, the backlight module and the display device provided by the embodiment of the present application are described in detail above, and specific examples are applied herein to explain the principle and the implementation of the present application, and the description of the above embodiments is only used to help understand the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.

Claims

1. A backlight, comprising: the lamp shade, set up in light-emitting element and end liner in the cavity of lamp shade, the light outgoing of light-emitting element transmission in outside the lamp shade is close to light-emitting element's short-distance beam region is provided with coarse structure, the light of light-emitting element transmission is in take place the scattering on the coarse structure, the lamp shade with light-emitting element is fixed in on the end liner.

2. The backlight of claim 1, wherein a thickness of a high beam region of the lamp cover away from the light emitting elements is less than a thickness of a low beam region near the light emitting elements.

3. The backlight of claim 2, wherein the shade tapers in thickness from the low beam region to the high beam region.

4. The backlight of claim 1, wherein the roughness structure is located inside the cover, and the roughness structure is coarse particles fixed to a low-beam region of the cover.

5. The backlight source as claimed in claim 1, wherein the roughness is on the surface of the lamp cover, and the roughness is a raised structure protruding from a low-beam region of the lamp cover.

6. The backlight of any one of claims 1 to 5, further comprising: the secondary lens is positioned between the lampshade and the light-emitting element, and the light-emitting element is arranged in an accommodating space formed by the bottom lining and the secondary lens.

7. The backlight of claim 6, wherein the secondary lens is provided with a first concave portion, a second concave portion and a side surface, and the first concave portion and the second concave portion are disposed opposite to each other up and down;

when the light emitting element emits light, the light irradiates the surface of the first concave part, is refracted on the surface of the first concave part and then enters the secondary lens, and is refracted and totally reflected on the surface of the second concave part, so that the light is emitted from the surface or the side surface of the second concave part.

8. The utility model provides a backlight module, includes backplate, light source module and diffuser plate, the backplate the light source module with the diffuser plate stacks gradually the setting, its characterized in that, the light source module includes: a plurality of the backlight sources of any of claims 1 to 7, the backlight sources arranged in a single line on the backplane.

9. A display device comprising the backlight module of claim 8, a circuit board and a display module, wherein the backlight module, the circuit board and the display module are electrically connected.