CN202469773U - Backlight module and liquid crystal display device - Google Patents

Abstract

The utility model provides a backlight module and a liquid crystal display device, which belong to the field of display technologies. The backlight module comprises a heat-dissipating block and a light guide plate, wherein the light inlet of the light guide plate is provided with a groove for accommodating the heat-dissipating block, and the heat-dissipating block is buckled with the light guide plate through the groove. According to the technical scheme disclosed by the utility model, the assembling efficiency of the backlight module can be improved, and the cost of the backlight module is saved.

Description

Module backlight, liquid crystal indicator

Technical field

The utility model relates to the Display Technique field, is meant a kind of module backlight, liquid crystal indicator especially.

Background technology

As shown in Figure 1; The backlight liquid crystal display module comprises in the market: glue frame 1, optical film material 2, LGP 3, reflector plate 4, backboard 5, light source 6, radiating block 7 (being lampshade) and reflection bar 8; Light source 6 can be LED (Light Emitting Diode, light emitting diode) or CCFL (Cold CathodeFluorescent Lamp, cathode fluorescent tube); Reflection bar 8 is attached on the radiating block 7 of light source 6 tops, and the light that directly light source 6 is sent reflects.This module backlight is to fix module positions such as light source 6, LGP 3, reflector plate 4, reflection bar 8 after backboard 5 and radiating block 7 are engaged again; Utilize glue frame 1 that optical film material 2 is positioned assembling simultaneously; Thereby the light that light source is sent can directly evenly be injected on the picture, plays effect backlight.

In the present module backlight, the structure more complicated of module backlight makes that the cost of module backlight is higher; And backboard need engage with radiating block, need utilize the glue frame to locate optical film material simultaneously, makes that module backlight is lower at packaging efficiency.

The utility model content

The technical problem that the utility model will solve provides a kind of module backlight, liquid crystal indicator, cost that can the save on backlight module, and improve the packaging efficiency of module backlight.

For solving the problems of the technologies described above, the technical scheme that the utility model provides is following:

A kind of module backlight is provided, comprises radiating block and LGP, the light inlet of said LGP is provided with one in order to hold the groove of said radiating block, and said radiating block engages with said LGP through said groove.

Further, said module backlight also comprises:

With the integrated backboard of said radiating block.

Further; Said module backlight also comprises optical film material; Said LGP periphery is provided with at least one locating slot, and corresponding said at least one locating slot of said optical film material is provided with at least one protruding button, is sticked in the locating slot through protruding button said optical film material is fixed on the said LGP.

Further, said module backlight also comprises:

Be arranged on the reflection bar between said LGP and the said radiating block.

Further, said module backlight also comprises:

Be arranged on the reflector plate between said LGP and the said backboard.

Further, said module backlight also comprises:

With the integrated light source lampshade of said radiating block.

Said radiating block, backboard and light source lampshade are the employing metal.

Further, the utility model also provides a kind of liquid crystal indicator, comprises above-mentioned module backlight.

The utlity model has following beneficial effect:

In the such scheme, the light inlet of LGP is provided with one in order to hold the groove of radiating block, directly engages with LGP through this groove radiating block; After having substituted the engaging of original backboard and glue frame, the structure of lightguide plate fixing and light source again, thus make module backlight can save original adhesive frame structure; Make the weight of module backlight lighter; Can reduce the cost of module backlight, and make simplifying the structure of module backlight, help assembling and produce; In addition, LGP directly is connected with radiating block, helps the propagation of the heat energy that light source sends.

Description of drawings

Fig. 1 is the structural representation of backlight liquid crystal display module in the prior art;

Fig. 2 a is the structural representation of the module backlight of the utility model;

Fig. 2 b is the schematic top plan view of the module backlight of the utility model;

Fig. 3 is the floor map of the module backlight of the utility model;

Fig. 4 is the schematic perspective view of the module backlight of the utility model.

Reference numeral

1: the glue frame

2,14: optical film material

3,11: LGP

4,13: reflector plate

5,122: backboard

6: light source

7,12: radiating block

8,15: reflection bar

111: the ccontaining frame of optical film material

The 121:LED lampshade

123：LED

141: protruding button

The specific embodiment

Clearer for technical problem, technical scheme and beneficial effect that the utility model will be solved, will combine accompanying drawing and specific embodiment to be described in detail below.

The embodiment of the utility model makes that to the structure more complicated of module backlight in the prior art cost of module backlight is higher; And backboard need engage with radiating block; Need utilize the glue frame to locate optical film material simultaneously, making the lower problem of packaging efficiency of module backlight provides a kind of module backlight, liquid crystal indicator; Cost that can the save on backlight module, and improve the packaging efficiency of module backlight.

Fig. 2 a is the structural representation of the module backlight of the utility model; Fig. 2 b is the schematic top plan view of the module backlight of the utility model; Shown in Fig. 2 a and Fig. 2 b; The module backlight of the utility model comprises radiating block 12 and LGP 11, and the radiating block 12 general metals that adopt are made, and are used for the heat that module backlight sends is dispelled the heat.As shown in Figure 4, in the utility model, radiating block 12 is one-body molded with backboard 122; Also be formed with a T type structure on the radiating block 12, to carry light source, particularly as light source lampshade 121; Light source can be LED (light emitting diode) light source, and backboard 122 all can adopt metal to make with LED lampshade 121.

Shown in Fig. 2 a, the light inlet of LGP 11 is provided with one in order to hold the groove of radiating block 12, and is as shown in Figure 4, cooperates with LED lampshade 121 through LGP 11, can realize that radiating block 12 engages with LGP 11 through groove.

Further, module backlight also comprises:

Be arranged on the reflection bar 15 between LGP 11 and the radiating block 12; And

Be arranged on the reflector plate 13 between LGP 11 and the backboard 122,

Wherein, reflector plate 13 is arranged between LGP 11 and the backboard 122, and the light bottom the module backlight is reflected; Reflection bar 15 attaches on the radiating block 12, and the light that directly led light source is sent is launched.

Further, like Fig. 2 b and shown in Figure 3, module backlight also comprises optical film material 14, and optical film material 14 generally is made up of a diffusion sheet and two prism films.LGP 11 is provided with the ccontaining frame 111 of optical film material; The periphery of the ccontaining frame 111 of optical film material is provided with at least one locating slot; Optical film material 14 corresponding at least one locating slot are provided with at least one protruding button 141, are sticked in the locating slot through protruding button 141 optical film material 14 is fixed on the LGP 11.

In the utility model,, have a groove structure at LGP 11 light inlets like Fig. 2 a and shown in Figure 4; Radiating block 12 is done bending as shown in Figure 4 simultaneously, is used for engaging with LGP 11, realizes LED lampshade 121 and LGP 11 light inlets location; Make light by the ejaculation that is uniformly dispersed of the exiting surface of LGP 11; Simultaneously backboard 122 is integrated with radiating block 12, makes to help the simplifying the structure of module backlight assembling and produce; In addition, the utility model utilizes the LGP 11 special ccontaining frame 111 direct fixed optics film materials 14 of optical film material own, after alternative original backboard and the engaging of glue frame; The structure of lightguide plate fixing, light source and optical film material again, thus make module backlight can remove original glue frame, make the weight of module backlight lighter; Can reduce the cost of module backlight; In addition, LGP directly is connected with radiating block, helps the propagation of the heat energy that light source sends.

Wherein, " " in the utility model and being not used in does numeral and limits.

The utility model embodiment also provides a kind of liquid crystal indicator, comprises above-mentioned module backlight.This liquid crystal indicator can be the product or the parts of any needs modules backlight such as mobile phone, LCD, LCD TV, DPF, panel computer.

The above is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the said principle of the utility model, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims (8)

1. a module backlight comprises radiating block and LGP, it is characterized in that,

The light inlet of said LGP is provided with one in order to hold the groove of said radiating block, and said radiating block engages with said LGP through said groove.

2. module backlight according to claim 1 is characterized in that, also comprises:

With the integrated backboard of said radiating block.

3. module backlight according to claim 1 also comprises optical film material, it is characterized in that,

Said LGP periphery is provided with at least one locating slot, and corresponding said at least one locating slot of said optical film material is provided with at least one protruding button, is sticked in the locating slot through protruding button said optical film material is fixed on the said LGP.

4. module backlight according to claim 1 is characterized in that, also comprises:

Be arranged on the reflection bar between said LGP and the said radiating block.

5. module backlight according to claim 2 is characterized in that, also comprises:

Be arranged on the reflector plate between said LGP and the said backboard.

6. module backlight according to claim 2 is characterized in that, also comprises:

With the integrated light source lampshade of said radiating block.

7. module backlight according to claim 6 is characterized in that said radiating block, backboard and light source lampshade are the employing metal.

8. a liquid crystal indicator is characterized in that, comprises like each described module backlight among the claim 1-7.

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