CN205485158U - Backplate subassembly, backlight unit and display device - Google Patents

Abstract

The utility model discloses a backboard assembly, a backlight module and a display device, wherein the backboard assembly is arranged in the display device and includes an aluminum-plastic board, a heat sink installed at the bottom of the back of the aluminum-plastic board, and a A sheet metal frame at the middle and lower part of the back of the aluminum-plastic plate; wherein, the bottom end of the sheet metal frame is adjacent to the top of the radiator, and the sheet metal frame is arranged in a plate shape and stamped on its surface A plurality of positioning columns and installation holes for installing the components of the display device are formed. By adopting the technical scheme of the utility model, the weight of the traditional display device can be reduced, and the thickness of the display device can be made thinner.

Description

Backplane assembly, backlight module and display device

technical field

The utility model relates to the field of display technology, in particular to a backboard assembly, a backlight module and a display device.

Background technique

The backplane is the skeleton of a large-size display device such as a flat-panel TV. Most of the various components in the display device are directly or indirectly arranged on the backplane. In order to ensure that the backplane has sufficient mechanical The back plate of the size display device is stamped from sheet metal parts. In addition, due to the convenience of installing various components, it is necessary to stamp some convex hulls for installing components on the back plate, which determines that the quality and thickness of traditional display devices are relatively large, which cannot satisfy consumers’ expectations for display devices. Light weight, thin thickness requirements.

Utility model content

The main purpose of the present invention is to provide a back panel assembly, aiming at reducing the weight of the traditional display device and making the thickness of the display device thinner.

In order to achieve the above purpose, the back panel assembly proposed by the utility model is set in the display device, including an aluminum-plastic panel, a radiator installed at the bottom of the back of the aluminum-plastic panel, and a middle and lower part of the back of the aluminum-plastic panel. A sheet metal frame; wherein, the bottom end of the sheet metal frame is adjacent to the top of the heat sink, the sheet metal frame is arranged in a plate shape and has several holes for installing the display device formed by stamping on its surface Positioning posts and mounting holes for components.

Preferably, a through groove is provided at the position where the heat sink is installed on the aluminum-plastic plate, and the position of the heat sink corresponding to the through groove has a folded edge, and the folded edge is adjacent to the through groove and there is a gap.

Preferably, a stepped hole is provided on the front of the aluminum-plastic plate; a first screw hole corresponding to the stepped hole is provided on the radiator; screws pass through the stepped hole and the first screw hole in sequence to make The aluminum-plastic plate is fixedly connected with the sheet metal frame.

The utility model also proposes a backlight module. The backlight module includes a backplane assembly, a backlight assembly, aluminum ribs, a plastic frame, and a cover. The backlight assembly is installed on the backplane assembly. The aluminum The ribs are arranged around the periphery of the aluminum-plastic panel;

The backboard assembly includes an aluminum-plastic panel, a radiator installed at the bottom end of the back of the aluminum-plastic panel, and a sheet metal frame installed at the middle and lower part of the back of the aluminum-plastic panel; wherein, the bottom of the sheet metal frame The end is adjacent to the top of the heat sink, the sheet metal frame is arranged in a plate shape, and a plurality of positioning columns and mounting holes for mounting the components of the display device are formed by stamping on its surface.

Preferably, the backlight assembly includes a light source, a reflector, a light guide plate and a liquid crystal panel, and the reflector, the light guide plate and the liquid crystal panel are all installed on the front of the aluminum-plastic plate; The upper ribs at the top of the aluminum-plastic plate, and the left ribs and right ribs respectively arranged at the left and right ends of the aluminum-plastic plate.

Preferably, the side of the aluminum-drawing rib facing away from the aluminum-plastic plate also has a raised line, and the raised line surrounds the folded edge to form a groove for placing the reflective sheet, the light guide plate and the liquid crystal panel.

Preferably, the aluminum-drawn tendons are bonded to the aluminum-plastic panel.

Preferably, the plastic frame includes an upper frame bar, a lower frame bar, a left frame bar and a right frame bar, wherein the upper frame bar is fixedly connected to the upper rib bar, the left frame bar is fixedly connected to the left rib bar, and the right frame bar is fixedly connected to the upper rib bar. The bar is fixedly connected with the right rib, and the lower frame bar is fixedly connected with the radiator.

Preferably, the panel includes a first board and a second board, the inner wall of the first board is attached to the backlight assembly, and the inner wall of the second board is attached to the backlight assembly together, the inner wall of the first board is perpendicular to the inner wall of the second board, the inner wall of the first board is connected to the end face of the liquid crystal panel, the inner wall of the second board is connected to the The end faces of the aluminum-plastic plate, the heat sink, the reflection sheet, the light guide plate and the liquid crystal panel are pasted together.

The utility model also proposes a display device, including a backlight module. The backlight module includes a backplane assembly, a backlight assembly, aluminum bars, a plastic frame, and a cover. The backlight assembly is installed on the backplane assembly. The aluminum-drawing bars are arranged around the periphery of the aluminum-plastic panel;

The backboard assembly includes an aluminum-plastic panel, a radiator installed at the bottom end of the back of the aluminum-plastic panel, and a sheet metal frame installed at the middle and lower part of the back of the aluminum-plastic panel; wherein, the bottom of the sheet metal frame The end is adjacent to the top of the heat sink, the sheet metal frame is arranged in a plate shape, and a plurality of positioning columns and mounting holes for mounting the components of the display device are formed by stamping on its surface.

The technical scheme of the utility model replaces the traditional backplane by adopting the backboard assembly composed of the aluminum-plastic panel, the radiator and the sheet metal frame. The aluminum-plastic panel involved in the utility model is an aluminum-plastic panel with a complete sheet structure. The aluminum-plastic panel does not have any bends and convex hulls, and is fixed by radiators, sheet metal frames and aluminum-plastic panels to complete the fixation of other parts. Through the above design, the weight of the traditional display device can be reduced, and the thickness of the display device can be made thinner.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the present utility model, and those skilled in the art can also obtain other drawings according to the structures shown in these drawings without creative work.

Fig. 1 is a structural schematic diagram of an embodiment of the utility model backplane assembly;

Fig. 2 is a partial enlarged view of II in Fig. 1;

Fig. 3 is a schematic diagram of the front structure of the aluminum-plastic panel in Fig. 1;

Fig. 4 is a partial enlarged view of place IV in Fig. 3;

Fig. 5 is a schematic diagram of the rear structure of the aluminum-plastic panel in Fig. 1;

Fig. 6 is a partial enlarged view of VI in Fig. 5;

Fig. 7 is a schematic structural view of the radiator in Fig. 1;

Fig. 8 is a partial enlarged view of VIII in Fig. 7;

Fig. 9 is a schematic structural view of the sheet metal frame in Fig. 1;

Figure 10 is a schematic diagram of the assembly structure of the backplane assembly of the present invention, the radiator, and the aluminum bars;

Figure 11 is a partial enlarged view of place XI in Figure 10;

Fig. 12 is a schematic diagram of the assembly structure of the plastic frame of the backlight module of the present invention;

Fig. 13 is a partial enlarged view of place i in Fig. 12;

Fig. 14 is a structural schematic diagram of the face shell of the backlight module of the present invention;

FIG. 15 is a schematic structural view of a backlight module of the present invention in an embodiment;

Fig. 16 is a sectional view along line ii-ii in Fig. 15;

Figure 17 is a partial enlarged view of iii in Figure 16;

FIG. 18 is a three-dimensional exploded schematic diagram of the backlight module in FIG. 15 .

Explanation of reference numbers:

label name label name 100 backplane assembly 110 Aluminum composite panel 111 front 112 the back 113 first screw hole 114 step surface 115 step hole 116 Through slot 120 sheet metal frame 121 Mounting surface 122 positioning post 123 Mounting holes 200 heat sink 210 hem 220 gap 300 A reflective sheet 400 light guide plate 500 Aluminum bars 510 Convex 520 Ribs 530 left tendon 540 right rib 600 Plastic frame 610 left frame 620 Lower frame 700 Optical film 800 LCD panel 900 Surface shell 910 first board 920 second board 930 Screw column 940 second screw hole

The realization of the purpose of the utility model, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relationship between the components in a certain posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

In addition, the descriptions related to "first", "second" and so on in the present application are only for the purpose of description, and should not be understood as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , also not within the scope of protection required by the utility model.

The utility model proposes a backboard assembly 100 .

Referring to Figures 1 to 9, Figure 1 is a schematic structural view of an embodiment of the utility model backboard assembly; Figure 2 is a partial enlarged view of II in Figure 1; Figure 3 is a schematic view of the front structure of the aluminum-plastic panel in Figure 1; 4 is a partial enlarged view of IV in Figure 3; Figure 5 is a schematic diagram of the rear structure of the aluminum-plastic panel in Figure 1; Figure 6 is a partial enlarged view of VI in Figure 5; Figure 7 is a schematic structural diagram of the radiator in Figure 1 ; Figure 8 is a partial enlarged view of VIII in Figure 7; Figure 9 is a schematic structural diagram of the sheet metal frame in Figure 1.

The back panel assembly 100 proposed by the utility model includes an aluminum-plastic panel 110 , a heat sink 200 installed on the aluminum-plastic panel 110 and a sheet metal frame 120 installed on the aluminum-plastic panel 110 . Wherein, the aluminum-plastic panel 110 has a front side 111 and a back side 112, the radiator 200 is installed at the bottom end of the back side 112 of the aluminum-plastic panel 110, and the sheet metal frame 120 is fixedly installed on the side of the aluminum-plastic panel 110. In the lower part of the back side 112, the bottom end of the sheet metal frame 120 is adjacent to the top of the heat sink 200. The sheet metal frame 120 is arranged in a plate shape and has at least one punched on its surface for direct fixing and/or The positioning column 122 and the installation hole 123 indirectly fix the components of the display device.

The technical solution of the utility model adopts the back panel assembly 100 composed of the aluminum-plastic panel 110, the radiator 200 and the sheet metal frame 120 to replace the traditional back panel. As for the plastic plate, the entire aluminum-plastic plate 110 has no bending and convex hull, and the radiator 200, the sheet metal frame 120 and the aluminum-plastic plate 110 are used to fix at the same time, so as to complete the fixing of other parts. Through the above design, the weight of the traditional display device can be reduced, and the thickness of the display device can be made thinner.

Preferably, as shown in FIG. 3 and FIG. 4 , the aluminum-plastic panel 110 is provided with a stepped hole 115 , and the stepped surface 114 of the stepped hole 115 is located on the front side 111 of the aluminum-plastic panel 110 and is recessed inward; as shown in FIG. 1, the radiator 200 and the sheet metal frame 120 are installed on the back 112 of the aluminum-plastic panel 110. As shown in Figures 7 to 8, a first screw hole 113 is provided at the position corresponding to the stepped hole 115 of the heat sink 200, and the heat sink 200 and the aluminum-plastic plate 110 can be screwed through the position. The step hole 115 and the first screw hole 113 are fixed, and the design of the step surface 114 can hide the nut used for fixing the screw, so as to prevent the nut from protruding from the front side 111 of the aluminum-plastic panel 110 and avoid It interferes with other parts installed on the front surface 111 of the aluminum-plastic plate 110; the bottom end of the aluminum-plastic plate 110 is provided with a through groove 116, which can be better engaged with the radiator 200.

Preferably, as shown in FIG. 7 and FIG. 8 , the heat sink 200 includes a heat sink body and a folded edge 210 connected to the heat sink body and perpendicular to it. ;

As shown in Figures 1 to 8, the length of the heat sink 200 is consistent with the length of the through groove 116 of the aluminum-plastic plate 110, and after the main body of the heat sink is bonded to the aluminum-plastic plate 110, the folded edge 210 can pass through the through groove 116, and protrude from the front side 111 of the aluminum-plastic plate 110, so that the engagement between the heat sink 200 and the aluminum-plastic plate 110 is more stable; since electronic components such as PCB boards are all fixed On the sheet metal frame 120, arranging the sheet metal frame 120 adjacent to the heat sink 200 can also enhance the heat dissipation performance of the display device. There is a gap 220 for placing the light source between the folded edge 210 and the aluminum-plastic panel 110 .

Preferably, as shown in FIG. 9 , one side of the sheet metal frame 120 is a mounting surface 121 , and the positioning posts 122 and the mounting holes 123 are both provided on the mounting surface 121 . The positioning posts 122 and the mounting holes 123 are used to fix other parts of the display device, making the installation more convenient. The size of the sheet metal frame 120 is smaller than the size of the aluminum-plastic panel 110, and the sheet metal frame 120 is fixed in the middle below the aluminum-plastic panel 110. A small-sized sheet metal frame 120 can meet the needs of fixing other components. While increasing the strength of the aluminum-plastic plate 110 and the back plate assembly 100, the heat dissipation performance of the display device is also improved.

The utility model also provides a backlight module.

As shown in Figures 10 to 18, among them, Figure 10 is a schematic diagram of the assembly structure of the backplane assembly of the present invention, a radiator, and aluminum bars; Figure 11 is a partial enlarged view of place XI in Figure 10; A schematic diagram of the assembly structure of the plastic frame of the new backlight module; Figure 13 is a partial enlarged view of i in Figure 12; Figure 14 is a structural schematic diagram of the face shell of the backlight module of the present invention; Figure 15 is a backlight module of the present invention Schematic diagram of the structure in one embodiment; Figure 16 is a cross-sectional view along the ii-ii line in Figure 15; Figure 17 is a partial enlarged view of Ⅲ in Figure 16; Figure 18 is a three-dimensional exploded structure of the backlight module in Figure 15 schematic diagram.

The backlight module includes a backplane assembly 100 , a backlight assembly, aluminum bars 500 , a plastic frame 600 and a cover 900 .

The backlight assembly is installed on the backplane assembly 100, and the aluminum-plastic bars 500 are arranged around the periphery of the aluminum-plastic panel 110 to strengthen the strength of the aluminum-plastic panel 110; the backlight assembly includes a light source, a reflector Sheet 300, light guide plate 400, and liquid crystal panel 800; the reflective sheet 300, light guide plate 400, and liquid crystal panel 800 are all installed on the front of the aluminum-plastic panel 110, and the specific structure of the back panel assembly 100 refers to the above-mentioned embodiment, because The backlight module adopts all the technical solutions of all the above-mentioned embodiments, so it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, and will not repeat them here.

Preferably, as shown in FIGS. 10 to 11 , the aluminum pull bars 500 are fixed to the front surface 111 of the aluminum-plastic panel 110 . The aluminum pull bars 500 include upper ribs 520 arranged at the top of the aluminum-plastic panel 110, and left ribs 530 and right ribs 540 respectively arranged at the left and right ends of the top of the aluminum-plastic panel 110; The side of the rib 500 facing away from the aluminum-plastic panel 110 also has a convex strip 510 , and the height of the convex strip 510 is consistent with the height of the part where the folded edge 210 protrudes from the front surface 111 of the aluminum-plastic panel 110 . The above-mentioned design can make the convex strip 510, the folded edge 210 and the front surface 111 of the aluminum-plastic plate 110 enclose a groove with accommodating space, which can make the reflective sheet 300 and the light guide plate 400 for limit.

Preferably, as shown in FIG. 12 and FIG. 13 , the plastic frame 600 is installed on the aluminum tendons 500 . The plastic frame 600 includes an upper frame strip, a lower frame strip 620, a left frame strip 610, and a right frame strip. The reflection sheet 300 and the light guide plate 400 on the front surface 111 of the aluminum-plastic plate 110 are fixed. Wherein, the upper frame bar is fixedly connected with the upper rib bar 520, the left frame bar 610 is fixedly connected with the left rib bar 530, the right frame bar is fixedly connected with the right rib bar 540, and the lower frame bar 620 is fixedly connected with the radiator 200. . The setting of the frame bar can preliminarily fix the backplane, the heat sink 200 and the aluminum bars 500, and provide a good assembly environment for the assembly of the heat dissipation plate, the light guide plate 400 and other components.

Preferably, as shown in FIGS. 14 to 17 , the panel 900 includes a first board 910 and a second board 920 , and the inner wall (not shown) of the first board 910 is in contact with the backlight assembly. Fitting, the inner wall (not shown) of the second board 920 is attached to the backlight assembly, the inner wall of the first board 910 and the inner wall of the second board 920 are perpendicular to each other, the The inner wall of the first plate body 910 is connected to the end surface of the liquid crystal panel 800, and the inner wall of the second plate body 920 is connected to the aluminum-plastic plate 110, the heat sink 200, the reflection sheet 300, and the light guide plate. 400 and the end faces of the liquid crystal panel 800 are bonded together. With such a design, the entire backlight module can be tightly fixed together, making the next step of assembling the display device more convenient.

Further, as shown in FIG. 14 , the inner surface of the second plate body 920 also has a screw column 930 for fixing, and the screw column 930 is provided with a second screw hole 940 for each section of the panel 900 The fixing between the surface shell 900 and the aluminum-plastic panel 110 and the aluminum reinforcement 500; the outer surface of the first plate 910 is a plane, and the outer surface of the second plate 920 is an arc surface, ensuring that the display The surface of the device after assembly is smooth.

Further, in this embodiment, as shown in Figure 17 and Figure 18, the backlight module further includes an optical film 700, the optical film 700 is placed on the plastic frame 600, and the liquid crystal panel After the 800 is placed on the optical film 700, four sections of the cover 900 are used to package and fix the backlight module, the optical film 700, the liquid crystal panel 800 and other components. Adding the optical film 700 lacking in the liquid crystal panel 800 such as a polarizer or a color filter can make the display effect of the display device better.

Specifically, the assembly sequence of the backlight module of the present invention is as follows: 1) Fix the heat sink 200 to the bottom of the back panel with screws; 2) Fix the sheet metal frame 120 to the back of the back panel with screws; The ribs 500 are pasted on each end of the backboard in advance; 4) Install the reflector 300, the light guide plate 400 and other parts; 5) Fit the plastic frame 600 on the aluminum ribs 500; 6) Install other optical films 700 ; 7) Install the liquid crystal panel 800; 8) Install the face shell 900.

The utility model also provides a display device.

The display device includes a backlight module. The backlight module includes a backplane assembly 100, a backlight assembly, aluminum bars 500, a plastic frame 600, and a cover 900. The backlight assembly is installed on the backplane assembly 100. The drawn aluminum bars 500 are arranged around the periphery of the aluminum-plastic plate 110;

The back panel assembly 100 includes an aluminum-plastic panel 110, a heat sink 200 installed at the bottom of the back 112 of the aluminum-plastic panel 110, and a sheet metal frame 120 installed at the middle and lower part of the back 112 of the aluminum-plastic panel 110; wherein , the bottom end of the sheet metal frame 120 is adjacent to the top end of the heat sink 200, the sheet metal frame 120 is arranged in a plate shape and has a number of parts for installing the display device formed by stamping on its surface Positioning posts 122 and mounting holes 123 .

The specific structures of the backplane assembly 100 and the backlight module refer to the above-mentioned embodiments, which can effectively solve the problems of heavy weight and large thickness of traditional display devices. All the beneficial effects brought by the technical solutions of the above embodiments will not be repeated here.

The above is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. Under the inventive concept of the utility model, the equivalent structural transformation made by using the specification of the utility model and the contents of the accompanying drawings, or Direct/indirect application in other related technical fields is included in the patent protection scope of the present utility model.

Claims (10)

1. a back board module, is located in display device, it is characterised in that described back board module includes aluminium-plastic panel, the radiator being arranged on the bottom at this aluminium-plastic panel back side and is arranged on the panel beating frame of middle and lower part at the back side of described aluminium-plastic panel；Wherein, the bottom of described panel beating frame is adjacent with the top of described radiator, the described plate-shaped setting of panel beating frame and be stamped and formed out locating dowel and the installing hole of some parts for installing described display device on its surface.

2. back board module as claimed in claim 1, it is characterised in that described aluminium-plastic panel is provided with groove for the position installing radiator, the position of the corresponding described groove of described radiator has flanging, and described flanging is adjacent with described groove and there is space.

3. back board module as claimed in claim 2, it is characterised in that the front of described aluminium-plastic panel offers stepped hole；First screw corresponding with described stepped hole is offered on described radiator；Sequentially pass through described stepped hole by screw and described first screw makes described aluminium-plastic panel and panel beating frame is fixing is connected.

4. a backlight module, it is characterized in that, including such as claim-2 to the back board module as described in 3 any one, backlight assembly, draw aluminum muscle, glue frame and face-piece, described backlight assembly is arranged on described back board module, described in draw aluminum muscle to enclose to be located at described aluminium-plastic panel periphery.

5. backlight module as claimed in claim 4, it is characterised in that described backlight assembly includes that light source, reflector plate, light guide plate and liquid crystal panel, described reflector plate, light guide plate and described liquid crystal panel are mounted on the front of described aluminium-plastic panel；The described upper rib drawing aluminum muscle to include being arranged on described aluminium-plastic panel top, and it is separately positioned on the left rib at two ends, described aluminium-plastic panel left and right and right rib.

6. backlight module as claimed in claim 5, it is characterised in that described in draw aluminum muscle to deviate from described aluminium-plastic panel one side also there is raised line, described raised line and described flanging surround formation one groove to place described reflector plate, described light guide plate and described liquid crystal panel.

7. backlight module as claimed in claim 6, it is characterised in that described in draw aluminum muscle bonding with aluminium-plastic panel.

8. backlight module as claimed in claim 4, it is characterized in that, described glue frame includes upper frame bar, lower moulding, left frame bar and right moulding, wherein, described upper frame bar is fixing with upper rib to be connected, left frame bar is fixing with left rib to be connected, and right moulding is fixing with right rib to be connected, and lower moulding is fixing with described radiator to be connected.

9. backlight module as claimed in claim 5, it is characterized in that, described face-piece includes the first plate body and the second plate body, the inwall of described first plate body fits with described backlight assembly, the inwall of described second plate body fits with described backlight assembly, the inwall of described first plate body is orthogonal with the inwall of described second plate body, the inwall of described first plate body is connected with the end face of described liquid crystal panel, the end face laminating of the inwall of described second plate body and described aluminium-plastic panel, described radiator, described reflector plate, described light guide plate and liquid crystal panel.

10. a display device, it is characterised in that include the backlight module as described in claim 4 to 9 any one.