CN205014163U - Backlight module and have this backlight module's display device - Google Patents

Abstract

The utility model discloses a light source including the backplate that has the loading end, on lieing in the loading end of this backplate of backlight module and have this backlight module's display device, this backlight module, lie in on the loading end of this backplate and have the light guide plate on plain noodles and play plain noodles, and the frame. This light guide plate is followed this income plain noodles and is accepted the light that this light source sent, again by this plain noodles light -emitting. This frame is including combining in the body of this backplate, setting up in this body and push away the piece of pulling that supports to this light guide plate to and by this support pull limit out and towards the opening of the loading end of this backplate. Support to pull can initiatively apply to push away to support to this light guide plate by this and do all can, make it can effectively fix a position this light guide plate.

Description

Backlight module and there is the display device of this backlight module

Technical field

The utility model relates to a kind of backlight module and has the display device of this backlight module, particularly relate to a kind of can lightguide plate fixing backlight module and there is the display device of this backlight module.

Background technology

The light guide plate of general backlight module needs to use detent mechanism to be fixed in backboard, avoid light guide plate to offset or slide, and tend to lightening and narrow frame gradually due to the design of recent backlight module, therefore the detent mechanism being used for fixing light guide plate also needs to comply with this trend, required installation space to be reduced.

But the many need of locate mode now manufacture assembly in addition, therefore have the problem of high cost.Fig. 1 keeps off with locating dowel 11 supporting light guide plate 12 to reach limit effect, but this kind of locate mode need offer locating slot 13 on light guide plate 12, and need process to install this locating dowel 11 on backboard 14, causes cost higher.In addition, locating dowel 11 only can be kept off to this light guide plate 12 and cannot initiatively apply pushing force to this light guide plate 12, therefore because of reasons such as thermal expansions, the distance between locating dowel 11 is increased once the backboard 14 arranging this locating dowel 11, this locating dowel 11 just cannot normally this light guide plate 12 spacing.

Limited block 15 in L-shaped is placed between light guide plate 12 and backboard 14, to reach the effect of this light guide plate 12 spacing and absorbing vibration by Fig. 2.But this kind of set-up mode equally only can support and initiatively cannot apply pushing force by passive gear, therefore when backboard 14 thermal expansion or limited block 15 are because of cold events, just this light guide plate 12 spacing cannot be continued, and this kind of locate mode also needs other other assemblies 16 arranged on this backboard 14 for this limited block 15 spacing, causes manufacturing cost to improve

Utility model content

Therefore, the purpose of this utility model is to provide a kind of backlight module that initiatively can apply pushing force to light guide plate.

So, the utility model backlight module comprise the backboard with loading end, the light source be positioned on the loading end of this backboard, be positioned at this backboard loading end on and there is the light guide plate of incidence surface and exiting surface, and housing.This light guide plate accepts from this incidence surface the light that this light source sends, then by this exiting surface bright dipping.

This housing comprise be incorporated into this backboard body, be arranged at this body and push against this light guide plate support valve part, and by this support valve part define out and the opening of loading end towards this backboard.

Therefore, another object of the present utility model is to provide the display device with this backlight module.

So the utility model display device comprises aforesaid backlight module, and be positioned at the display floater in light guide plate front of this backlight module.

Effect of the present utility model is: initiatively can apply pushing force to this light guide plate by this to valve part, can this light guide plate of effective location.

Accompanying drawing explanation

Other features of the present utility model and effect, clearly present with the embodiment with reference to accompanying drawing, wherein:

Fig. 1 is incomplete stereogram, and known light guide plate and locating dowel are described;

Fig. 2 is incomplete stereogram, and known light guide plate and limited block are described;

Fig. 3 is incomplete stereogram, and the embodiment of the utility model display device is described; And

Fig. 4 and Fig. 5 is incomplete stereogram, illustrates that housing is arranged at the process on backboard.

Detailed description of the invention

Consult Fig. 3, be the embodiment of the utility model display device 2, this display device 2 comprises backlight module 3, and is positioned at the display floater 4 in this backlight module 3 front.

This backlight module 3 comprises the backboard 5 with loading end 50, the light source 6 be positioned on the loading end 50 of this backboard 5, the light guide plate 7 be positioned on the loading end 50 of this backboard 5, and is arranged at the housing 8 on this backboard 5.In the present embodiment, this backlight module 3 is side entering type structure, can certainly be applied to straight-down negative structure.

This backboard 5 also has toward the front and defines the bottom wall part 51 of this loading end 50, connects the sidewall portion 52 of this bottom wall part 51 outer rim, and by this bottom wall part 51 and this sidewall portion 52 match around and the accommodation space 53 arranged for this light guide plate 7.

This light guide plate 7 is positioned at this display floater 4 rear, and there is the incidence surface 71 of light, the exiting surface 72 for bright dipping that receive this light source 6 and send, and connect the side 73 of this incidence surface 71 and this exiting surface 72, in the present embodiment, this side 73 coordinates with this incidence surface 71, around this exiting surface 72.And in other embodiments, when this backlight module 3 is straight-down negative structure, this incidence surface 71 and this exiting surface 72 are arranged separately.

This housing 8 have body 81, at least one connect this body 81 and push against the side 73 of this light guide plate 7 support valve part 82, supported by this valve part 82 define out and towards this backboard 5 loading end 50 open 83, and by this support valve part 82 and this body 81 the sidewall portion 52 defined for this backboard 5 stretch the slot 84 putting engaging.This housing 8 is arranged on this backboard 5 by this slot 84.In the present embodiment shown in Fig. 4 and Fig. 5, the quantity to valve part 82 is most, and in other embodiments, the quantity to valve part 82 also can be single.In addition, in the present embodiment, this body 81 supports valve part 82 with this and be formed in one, and in other embodiments, then can arrange disconnected from each otherly.

This body 81 has and blocks this backboard 5 front and the outside plate portion 811 of this light guide plate 7 of part overlaid, and connects this outside plate portion 811 and outside the sidewall portion 52 being positioned at this backboard 5 and the side plate 812 be positioned at outside this accommodation space 53.

Valve part 82 should be supported be positioned at this accommodation space 53 and be made up of elastomeric material, and there is the fastening part 821 extended towards this loading end 50 direction by the outside plate portion 811 of this body 81, the extension 822 being tilted to extend towards this light guide plate 7 by this fastening part 821, and to be arranged on this extension 822 and relative to the bending of this extension 822 and the supporting part 823 of the side 73 of this light guide plate 7 of contact.The pushing and pressing face 824 that the supporting part 823 of valve part 82 have the side 73 of this light guide plate 7 of contact should be supported, and connected this pushing and pressing face 824 and loading end 50 direction towards this backboard 5 extends, and relative to the guiding face 825 of this pushing and pressing face 824 inclination.

Consult Fig. 4 and Fig. 5, the installation method of this housing 8 is: as illustrated in fig. 4 by the loading end 50 of the opening 83 of this housing 8 towards this backboard 5, and this is inserted in this accommodation space 53 to valve part 82, the guiding face 825 that should support valve part 82 is the sides 73 first contacting this light guide plate 7, and reaches by the inclined-plane of this guiding face 825 effect guided and install.Then as shown in Figure 5, the pushing and pressing face 824 of valve part 82 should be supported to continue the side 73 of this guiding face 825 ground this light guide plate 7 of contact, now should support the side 73 that valve part 82 pushes this light guide plate 7, as illustrated in fig. 3 finally, the slot 84 of this housing 8 is aimed at the sidewall portion 52 of this backboard 5, this sidewall portion 52 is stretched put to be sticked in this slot 84, and valve part 82 should be supported this light guide plate 7 was pushed into location and completed installing.

By the guiding face 825 tilted, make this support valve part 82 and can be combined with this sidewall portion 52 simply along the guiding of this guiding face 825 when mounted.After being installed up to location, the supporting part 823 that should support valve part 82 is states of slightly recessed folding, is make with elastomeric material because this supports valve part 82, and therefore supporting part 823 meeting of recessed folding is consistently to pasting light guide plate 7 applied thrust touched, to locate this light guide plate 7.

In sum, valve part 82 should be supported and be made up of elastomeric material, and both still can be made to keep in touch when this light guide plate 7 and the distance of being somebody's turn to do between valve part 82 have during slight variations, to guarantee that this light guide plate 7 still can keep location under expanding with heat and contract with cold.The setting of this guiding face 825 can reduce installation difficulty, and this body 81 is with should to support the integrated structural elements of valve part 82 simple and can reduce costs, therefore really can reach the purpose of this utility model.

Above said content is only embodiment of the present utility model, the scope of the utility model enforcement can not be limited with this, every simple equivalence change done according to the utility model claim and patent specification content with modify, all still belong in scope that the utility model patent contains.

Character illustrates:

2............. display device

3................. backlight module

4................. display floater

5................. backboard

50............... loading end

51............... bottom wall part

52............... sidewall portion

53............... accommodation space

6................. light source

7................. light guide plate

71............... incidence surface

72............... exiting surface

73............... side

8................. housing

81............... body

811.............. outside plate portion

812.............. side plate

82............... valve part is supported

821.............. fastening part

822............ extension

823.............. supporting part

824.............. face is pushed against

825.............. guiding face

83............... opening

84............... slot.

Claims (9)

1. a backlight module, comprising:

Backboard, has loading end;

Light source, is positioned on the loading end of described backboard;

Light guide plate, the loading end being positioned at described backboard has incidence surface and exiting surface, and described light guide plate accepts from described incidence surface the light that described light source sends, then by described exiting surface bright dipping; And

Housing, comprise be incorporated into described backboard body, be arranged at described body and push against described light guide plate support valve part, and by described support valve part define out and the opening of loading end towards described backboard.

2. backlight module according to claim 1, wherein, described backboard also comprises toward the front and defines the bottom wall part of described loading end, connects the sidewall portion of described bottom wall part, and by described bottom wall part and described sidewall portion match around and the accommodation space arranged for described light guide plate, described valve part of supporting is positioned at described accommodation space.

3. backlight module according to claim 2, wherein, the body of described housing has the outside plate portion of blocking described backboard front, and connects described outside plate portion and the side plate be positioned at outside described accommodation space.

4. backlight module according to claim 3, wherein, the valve part of supporting of described housing has the fastening part extended towards described loading end direction by the outside plate portion of described body, the side plate of described fastening part and described body is arranged separately, thus the slot putting engaging is stretched in the sidewall portion defined for described backboard.

5. backlight module according to claim 4, wherein, the valve part of supporting of described housing also has the extension being tilted to extend towards described light guide plate by described fastening part, and to be arranged on described extension and relative to described extension bending and the supporting part of light guide plate described in contact.

6. backlight module according to claim 1, wherein, described light guide plate also has the side connecting described incidence surface and described exiting surface, the side pushing against described light guide plate to valve part of described housing.

7. backlight module according to claim 6, wherein, described valve part of supporting has the pushing and pressing face of the side of light guide plate described in contact, and connects described pushing and pressing face and loading end direction towards described backboard extends, and relative to the guiding face of described pushing and pressing face tilt.

8. backlight module according to claim 1, wherein, the valve part of supporting of described housing is made up of elastomeric material.

9. a display device, comprises backlight module according to any one of claim 1 to 8, and is positioned at the display floater in light guide plate front of described backlight module.