CN202132887U - Back plate of light-emitting diode (LED) backlight module and television - Google Patents

Abstract

The utility model discloses a back plate of a light-emitting diode (LED) backlight module and a television, wherein the back plate is split, a part of the back plate corresponding to the installation position of an LED lamp bar of the backlight module is an aluminum back plate, and the remaining part is an iron back plate. The back plate of the LED backlight module adopts the split structure design, the part of the back plate corresponding to the installation position of the LED lamp bar is designed into the aluminum back plate which is remarkable in radiating effect, and the remaining part is designed into the iron back plate which is low in cost, thereby meeting the premise of high light, high uniformity degree and good lighting angle required by the backlight module, enabling the LED lamp bar to be sufficient in radiating, ensuring normal work of the LED lamp bar, prolonging service life of the LED lamp bar, simultaneously greatly lowering cost of an integral backlight module and well meeting the requirement for being light in weight of the backlight module.

Description

A kind of backboard of LED-backlit module and television set

Technical field

The utility model belongs to the back light model setting technology field, specifically, relates to a kind of back board structure design of LED-backlit module and the television set that adopts said LED module back plate design.

Background technology

Along with the continuous growth in LCD TV market, the permeability of LED in the large scale backlight constantly increases, and China's coming years module industry backlight is expected to developed rapidly.

Liquid crystal panel itself is not luminous, must accomplish Presentation Function by module backlight, thereby module backlight is a considerable spare part in the present liquid crystal TV set.The primary structure of module backlight partly is made up of light emitting source, LGP, blooming piece, glue frame and backboard etc.Because the service efficiency of die set light source backlight focuses in the configuration design of back board structure and LED lamp bar; Therefore; How to make module backlight possess the characteristic of lightweight, slimming, high brightness and low material cost, just become the key technical problem that mainly to consider on the design of backlight module.

In existing module backlight, the module backboard all is to adopt the integral design mode, and a kind of is to adopt whole aluminium backboard, and its benefit is the heat radiation that helps LED lamp bar, but cost is unfavorable for effective control of complete machine cost than higher; Another kind is to adopt whole iron backboard, installs a little heat-dissipating aluminium plate again additional in the side that LED lamp bar is installed then, and this design is not only bad for the heat radiation of lamp bar, and comparison is heavy, is unfavorable for the light-weight design of module backlight.

Summary of the invention

The purpose of the utility model is to provide a kind of back plate design that adopts the LED-backlit module of split-type structural; Become two parts up and down through backboard split with module backlight; And each part selects for use the different metallic material to process; Thereby when effectively solving LED lamp bar heat dissipation problem, reduced the cost of entire aphototropism mould.

For solving the problems of the technologies described above, the utility model adopts following technical scheme to be achieved:

A kind of backboard of LED-backlit module, said backboard are split type, wherein with module backlight in the relative part in installation site of LED lamp bar be the aluminium backboard, remainder is the iron backboard.

Further, said backboard is divided into two parts up and down, and wherein, the first half is the iron backboard, and the latter half is the aluminium backboard, and said LED lamp bar is positioned at the latter half of module backlight.

Further again, in said module backlight, also include LGP, reflector plate, diffusion sheet and prismatic lens; Said LED lamp bar be installed in said LGP under, and the exiting surface of LED lamp bar is towards described LGP; Said reflector plate is laid in the rear side of LGP, and reflecting surface is relative with described LGP; Said diffusion sheet and prismatic lens are laid in the front side of said LGP; Said backboard is laid in the back side of said reflector plate.

Preferably, the first half of said backboard and the latter half fit together through the Plug Division.

Further again; Downside in the first half of said backboard is provided with the insert-connecting plate that stretches out downwards, and the upside of backboard the latter half is provided with groove, on said insert-connecting plate and groove, all has screw; Said insert-connecting plate is inserted in the groove, and fixes through the screw that penetrates in the screw.

Based on the back plate design of above-mentioned LED-backlit module, the utility model provides a kind of television set based on said design again, comprises display floater and module backlight, in said module backlight, includes backboard, LED lamp bar, LGP and blooming piece; Wherein, said backboard is split type, wherein with module backlight in the relative part in installation site of LED lamp bar be the aluminium backboard, remainder is the iron backboard, through the aluminium backboard LED lamp bar is fully dispelled the heat.

Compared with prior art; The advantage and the good effect of the utility model are: the utility model adopts the split-type structural design through the backboard to the LED-backlit module; With wherein being designed to the significant aluminium backboard of radiating effect with the relative part in LED lamp bar installation site; And remainder is designed to iron backboard with low cost, thereby under the prerequisite that satisfies the desired high brightness of module backlight, high evenness and good luminous angle, LED lamp bar can fully be dispelled the heat; Guarantee the operate as normal of LED lamp bar, prolonged its service life.Meanwhile, the cost of entire aphototropism mould can also be reduced greatly, and the light-weight design requirement of module backlight can be satisfied well.

After the detailed description in conjunction with advantages the utility model embodiment, other characteristics of the utility model and advantage will become clearer.

Description of drawings

Fig. 1 is the structural principle sketch map of LED-backlit module;

Fig. 2 is the split structure chart of the LED-backlit module dorsulum that proposes of the utility model;

Fig. 3 is the assembled state figure of backboard shown in Figure 2.

The specific embodiment

Describe in detail below in conjunction with the specific embodiment of accompanying drawing the utility model.

Embodiment one, and present embodiment is considered the whole cost of LED-backlit module and the heat dissipation problem of LED lamp bar wherein simultaneously, the backboard in the module backlight proposed the design philosophy of split-type structural.Promptly; Back plate design in the LED-backlit module is become split type; And with in the backboard with module backlight in the relative partial design in installation site of LED lamp bar become the aluminium backboard, with the quick conductive characteristic of utilizing aluminum the heat that discharges in the LED lamp bar course of work is fully dispelled the heat; Remainder in the backboard is designed to the iron backboard, because therefore iron backboard low price, can reach the purpose that reduces the whole back plate cost.

For present comparatively common LED-backlit module, its LED lamp bar generally is installed in the both sides up and down of LGP, promptly adopts the structural design mode of bilateral light inlet.For this module backlight; Need backboard wherein is divided into upper, middle, and lower part; Upper and lower two parts adopt the aluminium backboard, and are relative with the LED lamp bar of both sides up and down, and the backboard that is positioned at mid portion adopts the iron backboard; The backboard that forms thus not only can fully dispel the heat to LED lamp bar, and can reduce a part of cost.

In order to simplify the assembly technology of LED lamp bar; Under the prerequisite that satisfies the requirement of the module brightness backlight and the uniformity; Present embodiment preferably adopts the mode of one-sided light inlet to design the LED-backlit module; As shown in Figure 1, promptly only under LGP 5, insert LED lamp bar 11, and the exiting surface of LED lamp bar 11 is right against described LGP 5.Said LGP 5 is in order to the directing light direction, and main effect is to improve aspects such as the panel briliancy and the control light uniformity.Blooming piece is laid in both sides, front and back through at LGP 5, and then the generation liquid crystal panel shows needed Gao Liang, backlight uniformly.

In the present embodiment, said blooming piece can specifically comprise reflector plate 4, diffusion sheet 6/9 and prismatic lens 7/8, and is as shown in Figure 1.Said reflector plate 4 is laid in the rear side of LGP 5, and its reflecting surface is right against LGP 5, the light of LGP 5 directive reflector plates 4 reflected back, to improve light emission rate.Parallel successively cloth is set diffusion sheet 6, two prismatic lenses 7,8 and last diffusion sheets 9 in the front side of said LGP 5, and wherein, last diffusion sheet 9 is used for the light from LGP 5 is spread with following diffusion sheet 6; 7,8 of prismatic lenses are that the light after the diffusion is reflected, and the directive liquid crystal panel is to promote backlight illumination.Backboard 1 in the module backlight then is installed in the back side of said reflector plate 4.

For the LED-backlit module that the one-sided light inlet mode of this employing designs, present embodiment is designed to two parts up and down with backboard 1, like Fig. 2, shown in Figure 3.Because LED lamp bar 11 is positioned at the latter half of module backlight, therefore, 1-1 is designed to the iron backboard with the first half backboard, and the latter half back plate design becomes the aluminium backboard, LED lamp bar 11 is dispelled the heat being used for.

In order to reduce the cost of module backlight as wide as possible; Under the prerequisite that satisfies the 11 heat radiation requirements of LED lamp bar; Preferably must as far as possible little (as long as satisfying the requirement of dispelling the heat) with the area design of aluminium backboard 1-2; And the area design of iron backboard 1-1 must be tried one's best greatly, to reduce the cost of whole LED module backlight substantially.

The combine and assemble of backboard 1 for ease; Present embodiment preferably adopts the mode of grafting to realize the assembly unit of split type backboard; Promptly in the side design Plug Division of the mutual assembly unit of each several part backboard, becoming upper and lower two-part backboard 1-1,1-2 with split is that example describes, as shown in Figure 2; Can the insert-connecting plate 1-1-1 that stretch out be set downwards at the downside of the first half backboard 1-1, the upside of the latter half backboard 1-2 is provided with groove 1-2-1.On said insert-connecting plate 1-1-1 and groove 1-2-1, offer screw 1-1-2,1-2-2 respectively; When backboard 1 is assembled; Said insert-connecting plate 1-1-1 is inserted among the groove 1-2-1; And the screw 1-1-2 that makes insert-connecting plate 1-1-1 just with groove 1-2-1 on screw 1-2-2 overlap, utilize screw to be inserted among screw 1-1-2, the 1-2-2 then, to realize the mount of insert-connecting plate 1-1-1 and groove 1-2-1.Backboard 1 after the assembling is referring to shown in Figure 3.

The LED-backlit module that adopts split type back plate design is applied in the television set; In liquid crystal TV set; For the display floater in the television set (such as liquid crystal panel) provides backlight, not only can satisfy the display requirement of display floater, and can reduce the complete machine cost of tv product; And because the lightweight of design of backlight module, also make the lightening design of tv product become and be easy to more realize.

Certainly; The above only is a kind of preferred implementation of the utility model, for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims (10)

1. the backboard of a LED-backlit module, it is characterized in that: said backboard is split type, wherein with module backlight in the relative part in installation site of LED lamp bar be the aluminium backboard, remainder is the iron backboard.

2. the backboard of LED-backlit module according to claim 1 is characterized in that: said backboard is divided into two parts up and down, and wherein, the first half is the iron backboard, and the latter half is the aluminium backboard, and said LED lamp bar is positioned at the latter half of module backlight.

3. the backboard of LED-backlit module according to claim 2 is characterized in that: in said module backlight, also include LGP, reflector plate, diffusion sheet and prismatic lens; Said LED lamp bar be installed in said LGP under, and the exiting surface of LED lamp bar is towards described LGP; Said reflector plate is laid in the rear side of LGP, and reflecting surface is relative with described LGP; Said diffusion sheet and prismatic lens are laid in the front side of said LGP; Said backboard is laid in the back side of said reflector plate.

4. according to the backboard of claim 2 or 3 described LED-backlit modules, it is characterized in that: the first half and the latter half of said backboard fit together through the Plug Division.

5. the backboard of LED-backlit module according to claim 4; It is characterized in that: the downside in the first half of said backboard is provided with the insert-connecting plate that stretches out downwards; The upside of backboard the latter half is provided with groove; On said insert-connecting plate and groove, all have screw, said insert-connecting plate is inserted in the groove, and fixes through the screw that penetrates in the screw.

6. a television set comprises display floater and module backlight, in said module backlight, includes backboard, LED lamp bar, LGP and blooming piece; It is characterized in that: said backboard is split type, wherein with module backlight in the relative part in installation site of LED lamp bar be the aluminium backboard, remainder is the iron backboard.

7. television set according to claim 6 is characterized in that: said backboard is divided into two parts up and down, and wherein, the first half is the iron backboard, and the latter half is the aluminium backboard, and said LED lamp bar is positioned at the latter half of module backlight.

8. television set according to claim 7 is characterized in that: said blooming piece comprises reflector plate, diffusion sheet and prismatic lens; Said LED lamp bar be installed in said LGP under, and the exiting surface of LED lamp bar is towards described LGP; Said reflector plate is laid in the rear side of LGP, and reflecting surface is relative with described LGP; Said diffusion sheet and prismatic lens are laid in the front side of said LGP; Said backboard is laid in the back side of said reflector plate.

9. according to claim 7 or 8 described television sets, it is characterized in that: the first half and the latter half of said backboard fit together through the Plug Division.

10. television set according to claim 9; It is characterized in that: the downside in the first half of said backboard is provided with the insert-connecting plate that stretches out downwards; The upside of backboard the latter half is provided with groove; On said insert-connecting plate and groove, all have screw, said insert-connecting plate is inserted in the groove, and fixes through the screw that penetrates in the screw.

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