CN218383572U

CN218383572U - Back plate, backlight module and display

Info

Publication number: CN218383572U
Application number: CN202222732656.5U
Authority: CN
Inventors: 祁亚洲; 徐勇
Original assignee: Jiangsu TSD Electronics Technology Co Ltd
Current assignee: Jiangsu TSD Electronics Technology Co Ltd
Priority date: 2022-10-17
Filing date: 2022-10-17
Publication date: 2023-01-24
Anticipated expiration: 2032-10-17

Abstract

The utility model discloses a backboard, a backlight module and a display, wherein the backboard comprises a board body and a heat dissipation assembly, and one side of the board body is suitable for mounting a light source; the heat dissipation assembly comprises a plurality of heat dissipation parts and a circulation part, the heat dissipation parts are of hole structures formed on the plate body, one ends, close to the light source, of the hole structures are provided with circulation ports, the circulation ports are suitable for guiding media on one side of the light source to enter cavities of the hole structures, the circulation part is through holes formed in the plate body, and the circulation part is communicated with the cavities of the outside and the hole structures. The backboard of the structure is beneficial to the heat generated by light source luminescence to be dissipated to the outside through the heat dissipation part and the circulation part, and the heat is prevented from being dissipated to cause the light guide plate to be heated, expanded and deformed.

Description

Back plate, backlight module and display

Technical Field

The utility model relates to a display technical field, concretely relates to backplate, backlight unit and display.

Background

Along with the continuous progress of science and technology, the variety of electronic products is increasing, wherein, the liquid crystal display is very popular with people and basically becomes one of the electronic products necessary for the family, so the requirement and the standard of the liquid crystal display are also increasing.

In the related art, a liquid crystal display includes a liquid crystal panel for displaying a picture and a backlight assembly for providing a light source to the liquid crystal panel. The backlight module is divided into direct type backlight and side type backlight according to the light emitting mode, and in the side type backlight module, the main components are: the LED light source comprises a back plate for bearing an optical piece, an LED light bar for providing a light source, a light guide plate and the like.

However, when using LCD, in order to improve the luminance of display, need adopt powerful LED lamp pearl to strengthen the luminous energy of LED lamp pearl in order to reach high bright demonstration's effect, simultaneously, powerful LED lamp pearl during operation can produce a large amount of heats, and backlight unit is because inside relatively sealed, therefore the heat can not effectually give off, so can arouse inside light guide plate to warp for a long time, seriously influences the life of light guide plate.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to solve the technical problem that the inside relative seal of backlight unit can't effectively distribute the heat among the overcome prior art and lead to the light guide plate to warp, influences the life's of light guide plate defect.

Therefore, the utility model provides a backboard, include:

a plate body having one side adapted to mount a light source;

the heat dissipation assembly comprises a plurality of heat dissipation parts and a circulation part, the heat dissipation parts are of hole structures formed on the plate body, one end, close to the light source, of each hole structure is provided with a circulation port, the circulation ports are suitable for guiding media on one side of the light source to enter cavities of the hole structures, the circulation part is a through hole formed on the plate body, and the circulation part is communicated with the outside and the cavities of the hole structures.

Optionally, in the above mentioned back plate, the heat dissipation assembly further includes a first blocking plate, the first blocking plate is disposed at an end of the heat dissipation portion away from the light source, and the first blocking plate is fixedly connected to the heat dissipation portion.

Optionally, the above-mentioned back plate further comprises a dust-proof assembly, the dust-proof assembly is disposed on the plate body, the dust-proof assembly comprises a plurality of dust-proof members, a circulation gap is disposed between the dust-proof members and the circulation portion, the dust-proof members cover the circulation portion, and the dust-proof members are adapted to prevent dust from entering the cavity of the hole structure.

Optionally, in the above-mentioned back plate, the aperture size of the flow portion is smaller than or equal to the size of the dust-proof member.

Optionally, in the above-mentioned back plate, the dust-proof assembly further includes a second blocking plate, one end of the second blocking plate is connected to one end of the dust-proof member away from the light source, and the other end of the second blocking plate is connected to the circulating portion.

Optionally, the back plate, the dust-proof piece, the second blocking plate and the plate body are of an integrally formed structure.

Optionally, in the above mentioned back plate, the extending direction of the heat dissipation portion and the transmission direction of the light are parallel to each other.

Optionally, the cross section of the back plate, the heat dissipation part and the dust-proof part is in the shape of one or a combination of a plurality of semicircular shapes, rectangular shapes and triangular shapes.

A backlight module comprises a light source, a light guide assembly and the back plate.

A display comprises the backlight module.

The technical scheme provided by the utility model, following advantage has:

1. the utility model provides a backboard, including the board body and radiator unit, one side of the board body is suitable for the installation light source, and radiator unit includes a plurality of radiating parts and circulation portion, and the radiating part is the pore structure of shaping on the board body, and the one end that is close to the light source of pore structure is provided with the circulation mouth, and in the circulation mouth was suitable for the medium access hole structure's of guide light source one side cavity, the circulation portion was the through-hole of shaping on the board body, the circulation portion communicates external and pore structure's cavity.

The backplate of this structure, the light source of one side-mounting through the edition of books body, the pore structure of shaping on the edition of books body and the circulation mouth that sets up at the pore structure and be close to light source one end, a side-mounting light source at the edition of books body, the light source is suitable for providing light and transmits, radiator unit includes a plurality of radiating parts and circulation portion, the radiating part is the pore structure of shaping on the edition of books body, be favorable to forming the heat that the passageway confession light source produced when providing light and flow in the cavity of pore structure, the one end that is close to the light source of pore structure is provided with the circulation mouth, be favorable to the heat that the light source produced when providing light, heat gets into the pore structure in and flows in the cavity of pore structure, the external cavity with the pore structure of circulation portion intercommunication, thereby the heat that flows in the cavity of pore structure will give off the external world and go, thereby avoided the heat can't give off and lead to the light guide plate thermal expansion to warp.

2. The utility model provides a backboard, establish the dust-proof piece on circulation portion through setting up the first shutoff board and the lid of keeping away from the one end of light source at the radiating part, first shutoff board sets up the one end of keeping away from the light source at the radiating part, and first shutoff board and radiating part fixed connection, the one end that the light source was kept away from to first shutoff board shutoff, be favorable to preventing that the dust from falling into the cavity of pore structure from the one end that the light source was kept away from to the radiating part, thereby lead to the unable normal work of light guide plate, first shutoff board and radiating part fixed connection, be favorable to reducing the processing preparation degree of difficulty of backboard, reduce the use of material, be provided with the circulation clearance between dust-proof piece and the circulation portion, be favorable to guiding the heat that flows in the pore structure to give off the external world from the circulation portion and go, the dust-proof piece lid is established in circulation portion, be favorable to preventing that external dust from entering into the cavity of pore structure from the circulation portion, thereby lead to the unable normal work of light guide plate.

3. The utility model provides a backboard, through setting up the second shutoff board of keeping away from light source one end at the dustproof, the aperture size less than or equal to dustproof of circulation portion's size, be favorable to the dustproof to cover completely and establish in circulation portion, prevent that the unable complete cover of dustproof from establishing in circulation portion, lead to external dust to fall into the cavity of pore structure from the gap in, thereby lead to the unable normal work of light guide plate, dustproof subassembly still includes the second shutoff board, the one end of second shutoff board is connected with the one end that the light source was kept away from to the dustproof, the other end and the circulation portion of second shutoff board are connected, be favorable to the one end that the light source was kept away from to the complete shutoff dustproof of second shutoff board, prevent that the unable complete lid of dustproof from establishing on circulation portion, lead to external dust to fall into the cavity of pore structure from the gap in, thereby lead to the unable normal work of light guide plate, the dustproof, the second shutoff board is as an organic whole shaping structure with the board body, be favorable to reduce the processing preparation of backboard, reduce the use of material, the extending direction of heat dissipation part is parallel to each other with the transmission direction of light, be favorable to the heat that the light source produced when providing the pore structure and the pore structure in the pore structure degree of flow degree of difficulty.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic diagram of a back plate structure provided in an embodiment of the present invention;

fig. 2 is a schematic structural view of the heat dissipation portion and the opening end of the dust-proof member in the back plate according to an embodiment of the present invention;

fig. 3 is a schematic structural view of a heat dissipating portion of a back plate and a blocking end of a dust-proof member provided in an embodiment of the present invention;

description of reference numerals:

1-a plate body;

21-a heat sink; 211-flow port; 22-a circulation section; 23-a first blanking panel;

31-a dust-proof piece; 32-second closure plate.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

As shown in fig. 1 to 3, the back plate includes a plate body 1 and a heat dissipation assembly. Wherein, the light source is installed to one side of the board body 1, the light source is suitable for sending light and transmits in getting into the light guide plate, heat radiation component includes a plurality of radiating part 21 and circulation portion 22, radiating part 21 is suitable for the heat that produces when circulation light source sends light, circulation portion 22 is suitable for the heat of giving off circulation in the radiating part 21, radiating part 21 is the pore structure of shaping on the board body 1, the heat that the pore structure produced when being favorable to the light source to send light flows, the one end that the pore structure is close to the light source is provided with circulation portion 211, the heat that produces when circulation portion 211 is suitable for the guide light source to send light enters into the cavity of pore structure in, and guide heat flows in the cavity of pore structure, circulation portion 22 is the through-hole of shaping on the board body 1, circulation portion 22 communicates the cavity of external and pore structure, circulation portion 22 is suitable for the heat that flows in the cavity of pore structure to give off to the external world, avoid the heat to give off in the backplate and not go out, lead to the light guide plate inflation deformation.

The backplate that this embodiment provided, as shown in fig. 2, heat dissipation assembly still includes first shutoff board 23, first shutoff board 23 sets up the one end of keeping away from the light source at heat dissipation part 21, and first shutoff board 23 and heat dissipation part 21 fixed connection, first shutoff board 23 has shutoff heat dissipation part 21 and has kept away from the one end of light source, be favorable to preventing that the dust from the one end that heat dissipation part 21 kept away from the light source falling into the cavity of pore structure, thereby lead to the unable normal work of light guide plate, first shutoff board 23 and heat dissipation part 21 fixed connection, be favorable to reducing the processing preparation degree of difficulty of backplate, reduce the use of material.

The back plate provided by the embodiment, as shown in fig. 1, further includes a dust-proof assembly, the dust-proof assembly is disposed on the plate body 1, the dust-proof assembly includes a plurality of dust-proof members 31, a circulation gap is disposed between the dust-proof members 31 and the circulation portion 22, the dust-proof members 31 are disposed on the circulation portion 22 in a covering manner, a circulation gap is disposed between the dust-proof members 31 and the circulation portion 22, so as to facilitate guiding heat flowing in the hole structure to be dissipated to the outside from the circulation portion 22, the dust-proof members 31 are disposed on the circulation portion 22 in a covering manner, so as to facilitate preventing external dust from entering the cavity of the hole structure from the circulation portion 22, thereby causing the light guide plate to work abnormally.

In the back plate provided in this embodiment, as shown in fig. 2, the aperture size of the circulating part 22 is smaller than the size of the dust-proof piece 31, the dust-proof piece 31 covers the circulating part 22, the aperture size of the circulating part 22 is smaller than the size of the dust-proof piece 31, and the dust-proof piece 31 completely covers the circulating part 22, which is beneficial to preventing external dust from entering the cavity of the hole structure from the circulating part 22, thereby causing the light guide plate to fail to work normally.

Of course, in an alternative embodiment, the aperture size of the circulation part 22 is equal to the size of the dust-proof piece 31, the dust-proof piece 31 covers the circulation part 22, the aperture size of the circulation part 22 is equal to the size of the dust-proof piece 31, and the dust-proof piece 31 completely covers the circulation part 22, which is beneficial to preventing external dust from entering the cavity of the hole structure from the circulation part 22, thereby causing the light guide plate to fail to work normally.

The back plate provided by the embodiment, as shown in fig. 2, the dust-proof assembly further includes a second blocking plate 32, one end of the second blocking plate 32 is connected to the end of the dust-proof member 31 away from the light source, and the other end of the second blocking plate 32 is connected to the circulating portion 22, which is beneficial to the second blocking plate 32 to completely block the end of the dust-proof member 31 away from the light source, so as to prevent the dust-proof member 31 from being completely covered on the circulating portion 22, and prevent external dust from falling into the cavity of the hole structure from the gap, thereby preventing the light guide plate from being normally operated.

The backplate that this embodiment provided, as shown in fig. 2, dust keeper 31, second shutoff board 32 set up to the integrated into one piece structure with board body 1, have avoided having the gap between second shutoff board 32 and dust keeper 31 and the board body 1, lead to in external dust falls into the cavity of pore structure, influence the unable normal work of light guide plate, also be favorable to reducing the processing preparation degree of difficulty of backplate, reduce the use of material.

The backplate that this embodiment provided, as shown in fig. 2, the extending direction of radiating part 21 is parallel to each other with the transmission direction of light, is favorable to the heat that the light source sent the light and produces can directly enter into the cavity of pore structure through circulation mouth 211 in to flow in the cavity of pore structure, later give off the external world from circulation portion 22 and go, avoid the heat to give off in the backplate and not go out, lead to the light guide plate to be heated the inflation and be out of shape.

The backplate that this embodiment provided, as shown in fig. 1, the shape of the cross section of heat dissipation portion 21 and dust keeper 31 is semi-circular, the shape of cross section is semi-circular heat dissipation portion 21, then the cavity of the pore structure of shaping on the board body 1 is the halfcylinder cavity, the heat that the light source sent light to produce can flow in the cavity of the pore structure of halfcylinder, and give off the external world from circulation portion 22 and go, avoid the heat to give off in the backplate and not go out, lead to the light guide plate thermal expansion deformation.

Of course, in an alternative embodiment, the cross sections of the heat dissipation portion 21 and the dust-proof member 31 are rectangular, and the cross section of the heat dissipation portion 21 is rectangular, so that the cavity of the hole structure formed on the board body 1 is a quadrangular prism cavity, and heat generated by light emitted from the light source can flow in the cavity of the hole structure of the quadrangular prism and is dissipated to the outside from the circulation portion 22, thereby preventing the heat from being dissipated in the back plate and causing the light guide plate to expand and deform due to heating.

Of course, in an alternative embodiment, the cross sections of the heat dissipation portion 21 and the dust-proof member 31 are triangular, the cross section of the heat dissipation portion 21 is triangular, the cavity of the hole structure formed on the plate body 1 is a triangular prism cavity, and the heat generated by the light emitted from the light source can flow in the cavity of the hole structure of the triangular prism and is dissipated to the outside from the circulation portion 22, so that the heat is prevented from being dissipated in the back plate and causing the light guide plate to expand and deform due to heating.

Of course, in alternative embodiments, the cross-sectional shapes of the heat dissipation portion 21 and the dust-proof member 31 may be a combination of a plurality of shapes, such as a semicircle, a rectangle, and a triangle, the hole structure formed in the plate body 1 may have a cavity that allows heat generated when the light source emits light to flow, the cross-sectional shape of the heat dissipation portion 21 may be a semicircle, a rectangle, and a triangle, and the like, and the cross-sectional shapes of the heat dissipation portion 21 and the dust-proof member 31 will not be explained in many cases.

Example 2

The present embodiment provides a backlight module, which includes the back plate provided in embodiment 1. The backlight unit of above-mentioned structure is through having adopted foretell backplate, the light source is installed to one side of edition of books body 1, the light source is suitable for sending light and transmits in getting into the light guide plate, heat radiation component includes a plurality of radiating part 21 and circulation portion 22, radiating part 21 is suitable for the heat that produces when circulation light source sends light, circulation portion 22 is suitable for the heat that circulates in the radiating part 21 of giving off, radiating part 21 is the pore structure of shaping on edition of books body 1, the pore structure is favorable to the heat that produces when light source sends light to flow, the one end that the pore structure is close to the light source is provided with circulation portion 211, circulation portion 211 is suitable for the heat that produces when guiding light source sends light and enters into the cavity of pore structure in, and guide heat flows in the cavity of pore structure, circulation portion 22 is the through-hole of shaping on edition of books body 1, circulation portion 22 communicates the cavity of external and pore structure, circulation portion 22 is suitable for the heat that flows in the cavity of pore structure gives off to go to the external world, avoid the heat not go out in giving off the backplate, lead to the light guide plate thermal expansion deformation, the life of backlight unit has been increased.

Example 3

The present embodiment provides a display device, which includes the backlight module provided in embodiment 2. The display adopts the backlight module, the light source is installed on one side of the plate body 1, the light source is suitable for emitting light and transmitting the light into the light guide plate, the heat dissipation assembly comprises a plurality of heat dissipation parts 21 and a circulation part 22, the heat dissipation parts 21 are suitable for circulating heat generated when the light source emits light, the circulation part 22 is suitable for emitting the heat circulating in the heat dissipation parts 21, the heat dissipation parts 21 are hole structures formed on the plate body 1, the hole structures are favorable for the heat generated when the light source emits light to flow, one end of each hole structure close to the light source is provided with the circulation part 211, the circulation part 211 is suitable for guiding the heat generated when the light source emits light to enter the cavity of each hole structure, and guiding the heat to flow in the cavity of each hole structure, the circulation part 22 is a through hole formed on the plate body 1, the circulation part 22 is communicated with the cavity of the outside and the hole structures, the circulation part 22 is suitable for the heat flowing in the cavity of each hole structure to be emitted to the outside, the heat is prevented from being emitted in the back plate and not going out, the heat expansion and deformation caused by the heat of the light guide plate are caused, and the service life of the display is prolonged.

The utility model provides a backboard, its heat dissipation process as follows:

first, the light source installed on one side of the board body 1 emits light, and when the light source emits light, heat is generated and enters the cavity of the hole structure from the circulation port 211, and due to the principle of hot air floating, the heat flows upwards in the cavity of the hole structure, and in the flowing process of the heat, the heat is emitted to the outside through the circulation part 22 arranged on the board body 1. Thus, the heat dissipation process is completed.

The utility model provides a backboard, the light source of one side installation through board body 1, the shaping is at the pore structure on the board body 1 and set up the circulation mouth 211 that is close to light source one end at the pore structure, a side-mounting light source at the board body 1, the light source is suitable for and provides light and transmits, radiator unit includes a plurality of radiating part 21 and circulation portion 22, radiating part 21 is the pore structure of shaping on board body 1, be favorable to forming the heat that the passageway confession light source produced when providing light and flow in the cavity of pore structure, the one end that is close to the light source of pore structure is provided with circulation portion 211, be favorable to the heat that the light source produced to flow in the pore structure of the heat that produces when providing light and flow in the cavity of pore structure, circulation portion 22 is the through-hole of shaping on board body 1, circulation portion 22 communicates the external cavity with the pore structure, be favorable to giving off the external heat that flows in the cavity of pore structure, thereby avoid the heat can's unable giving off and lead to the light guide plate to be heated and be out of deformation.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. A backing sheet, comprising:

a board body (1), one side of the board body (1) is suitable for mounting a light source;

the heat dissipation assembly comprises a plurality of heat dissipation portions (21) and a circulation portion (22), the heat dissipation portions (21) are formed in a hole structure on the plate body (1), one end, close to a light source, of the hole structure is provided with a circulation port (211), the circulation port (211) is suitable for guiding a medium on one side of the light source to enter a cavity of the hole structure, the circulation portion (22) is formed in a through hole in the plate body (1), and the circulation portion (22) is communicated with the outside and the cavity of the hole structure.

2. A back plate according to claim 1, wherein the heat dissipation assembly further comprises a first blocking plate (23), the first blocking plate (23) is disposed at an end of the heat dissipation portion (21) away from the light source, and the first blocking plate (23) is fixedly connected with the heat dissipation portion (21).

3. A back-plate according to claim 2, further comprising a dust-proof assembly arranged on the plate body (1), the dust-proof assembly comprising a plurality of dust-proof pieces (31), a flow-through gap being provided between the dust-proof pieces (31) and the flow-through portion (22), the dust-proof pieces (31) covering the flow-through portion (22), the dust-proof pieces (31) being adapted to prevent dust from entering the cavity of the hole structure.

4. A backplate according to claim 3 in which the aperture size of the flow-through part (22) is less than or equal to the size of the dust guard (31).

5. A back plate according to claim 3 or 4, wherein the dust-proof assembly further comprises a second closure plate (32), one end of the second closure plate (32) being connected to the end of the dust-proof member (31) remote from the light source, the other end of the second closure plate (32) being connected to the flow-through (22).

6. A back plate according to claim 5, wherein the dust guard (31), the second blanking panel (32) and the plate body (1) are of an integrally formed structure.

7. A backsheet according to claim 1 or 2, wherein the direction of extension of the heat sink (21) and the direction of transmission of the light are parallel to each other.

8. A backplate according to claim 6 in which the cross-sections of the heat sink (21) and dust guard (31) are in the shape of a combination of one or more of semi-circular, rectangular and triangular.

9. A backlight module comprising a light source, a light guide assembly and the back sheet of any one of claims 1-8.

10. A display comprising the backlight module of claim 9.