CN103185255B

CN103185255B - Backlight module

Info

Publication number: CN103185255B
Application number: CN201110444250.0A
Authority: CN
Inventors: 赖志成
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Filing date: 2011-12-27
Publication date: 2016-11-30
Anticipated expiration: 2031-12-27

Abstract

The present invention relates to a kind of backlight module, it includes framework, luminescence unit, multiple keeper and light guide plate.This framework includes a base plate and is arranged on two side plates of base plate opposite sides.This luminescence unit is arranged on this chassis base.The plurality of keeper is arranged on this chassis base.Each keeper includes two supporting parts being arranged on the opposite sides of this luminescence unit.Each supporting part includes the loading end relative with luminescence unit.This loading end is inclined-plane.Distance between two loading ends included by each keeper is gradually increased along the direction away from this chassis base.This light guide plate is arranged on the loading end of this supporting part, and this light guide plate includes an incidence surface, and this incidence surface is oppositely arranged with luminescence unit.

Description

Backlight module

Technical field

The present invention relates to a kind of backlight module.

Background technology

Existing backlight module, generally comprise framework, the light guide plate being arranged in framework, The luminescence unit relative with the incidence surface of light guide plate.Usually, in order to by light guide plate group Being filled in this framework, the distance between this framework i.e. need to need more than the thickness of light guide plate Reserved certain tolerance.Described reserved tolerance causes in an assembling process, light guide plate Installation site be easy to skew so that luminescence unit is not aligned with light guide plate, The ratio that the light causing luminescence unit to send is incident in light guide plate is relatively low, and then makes to lead The light extraction efficiency of tabula rasa is relatively low.

Summary of the invention

In view of this, it is necessary to provide a kind of and be easily installed and the back of the body that light extraction efficiency is higher Light module.

A kind of backlight module, it include framework, luminescence unit, multiple keeper and Light guide plate.This framework includes a base plate and is arranged on two of base plate opposite sides First framework and the second framework.This luminescence unit is arranged on this chassis base.These are many Individual keeper is arranged on this chassis base.Each keeper includes being arranged on this luminescence Two supporting parts of the opposite sides of unit.Each supporting part includes and luminescence unit phase To loading end.This loading end is inclined-plane.Two carryings included by each keeper Distance between face is gradually increased along the direction away from this chassis base.This light guide plate sets Putting on the loading end of this supporting part, this light guide plate includes an incidence surface, and this enters light Face is oppositely arranged with luminescence unit.

A kind of backlight module includes framework, luminescence unit, multiple keeper and leaded light Plate.This framework includes a base plate and is arranged on framework and the side of base plate opposite sides Plate.This luminescence unit includes the circuit board arranged on which floor plate and is arranged on this electricity Multiple light-emitting components on the plate of road.The plurality of keeper arranges on the board and divides Not relative with the plurality of light-emitting component.Each keeper includes being arranged on corresponding Two supporting parts of the opposite sides of light-emitting component, each supporting part includes and luminescence unit The loading end that part is relative.This loading end is inclined-plane.Included by each keeper two Distance between loading end is gradually increased along the direction away from this chassis base.This leaded light Plate is arranged on the loading end of this supporting part.This light guide plate includes an incidence surface, should Incidence surface is oppositely arranged with light-emitting component.

This light guide plate is arranged on the loading end of supporting part, and two relative supporting surfaces can Light guide plate is positioned, so that light guide plate is installed on a predetermined position, installation side Just.Further, light guide plate is installed in place, can improve what luminescence unit sent The light ratio by this light guide plate, thus improve the light extraction efficiency of this backlight module.

Accompanying drawing explanation

Fig. 1 is the axonometric chart of the backlight module that first embodiment of the invention provides.

Fig. 2 is the Fig. 1 profile along II-II.

Fig. 3 is the section that first embodiment of the invention provides another structure of backlight module Schematic diagram.

Fig. 4 is the axonometric chart of the backlight module that second embodiment of the invention provides.

Fig. 5 is the profile of the backlight module that third embodiment of the invention provides.

Main element symbol description

Backlight module 100,200,300

Framework 20

Base plate 21

First framework 22

First side lever 221

Second side lever 222

Cross bar 223

Second framework 23

Luminescence unit 30

Circuit board 31

Light-emitting component 32

Keeper 40,80

Base 81

Supporting part 41,70,82

Loading end 411,821

Light guide plate 50

Incidence surface 51

Upper surface 52

Side 53,54

Reflecting layer 60

Following detailed description of the invention will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.

Detailed description of the invention

Refer to Fig. 1, the showing of backlight module 100 provided for first embodiment of the invention It is intended to.This backlight module 100 includes framework 20, luminescence unit 30, multiple keeper 40 and light guide plate 50.

Please also refer to Fig. 2, this framework 20 includes a base plate 21 and from base plate The first framework 22 and the second framework 23 that 21 opposite sides extend in the same direction.In this enforcement In example, this first framework 22 is respectively perpendicular to this base plate 21 with this second framework 23. In the present embodiment, this first framework 22 includes being arranged on the first of base plate 21 two ends Side lever the 221, second side lever 222 and be arranged on this first side lever 221 and the second side lever The cross bar 223 on 222 tops.This first framework 22 can be used for supporting and housing light transmission Good supporter, such as glass plate, resin plate etc..This second framework 23 is a flat board, And it is one-body molded with this base plate 21.

This luminescence unit 30 is arranged on the base plate 21 of this framework 20.This luminescence unit 30 include circuit board 31 and are arranged on the multiple light-emitting components 32 on this circuit board 31. This light-emitting component 32 is light emitting diode, and is arranged in a straight line on this base plate 21.

The plurality of keeper 40 is arranged on the base plate 21 of this framework 20.In this enforcement In example, the plurality of keeper 40 and the plurality of light-emitting component 32 one_to_one corresponding.I.e. every Individual keeper 40 is separately positioned on the both sides of a light-emitting component 32.Each keeper 40 include the supporting part 41 being arranged on the opposite sides of a light-emitting component 32.Each Supporting part 41 has a loading end 411 towards light-emitting component 32.At the present embodiment In, each trapezoidal shape of supporting part 41, this loading end 411 is self-emission device 32 Outward-dipping inclined-plane.Between relative two loading ends 411 of each keeper 40 Distance is gradually increased along the direction of the base plate 21 away from this framework 20.At the present embodiment In, each light-emitting component 32 is just being arranged on two supporting parts 41 corresponding thereto Center.In this embodiment, the size shape of the plurality of keeper 40 is identical, and often Two supporting parts 41 that individual keeper 40 includes are arranged in specular.Each support The height in portion 41 is more than the height of light-emitting component 32.

In the present embodiment, this light guide plate 50 includes an incidence surface 51, and is somebody's turn to do Upper surface 52 that incidence surface 51 is relative and be arranged on this incidence surface 51 and upper surface Two the first relative side 53 and the second sides 54 between 52.This first side 53 is relative with the first framework 22 of this framework 20, this second side 54 and this framework Second framework 23 of 20 is relative.In the present embodiment, this first side 53 is led for this The exiting surface of tabula rasa 50.This light guide plate 50 is arranged on the loading end 411 of this supporting part 41 On.The incidence surface 51 of this light guide plate 50 is relative with the plurality of light-emitting component 32.This is led The thickness of tabula rasa 50 is more than the minimum range between these two loading ends 411.

In the present embodiment, the loading end 411 of this keeper 40 is further provided with instead Penetrating layer 60, this reflecting layer 60 is for reflecting the light that the plurality of light-emitting component 32 sends. Usually, this reflecting layer 60 is made up of the metal material with high reflectance, such as silver Or aluminum.

This light guide plate 50 is arranged on the loading end 411 of keeper 40, fixed by this This light guide plate 50 is positioned by the loading end 411 of position part 40, thus by light guide plate 50 are arranged on precalculated position, and this backlight module 100 is easy for installation.Further, due to this Light guide plate 50 is installed in place, and the loading end of the inclination of this keeper 40 Having reflecting layer 60 on 411, light-emitting component 32 can be exposed to light thereon by it Reflex to light guide plate 50, and from the first side 53 outgoing, thus this backlight mould can be improved The light extraction efficiency of group 100.

It is understood that in the present embodiment, the plurality of keeper 40 can also set Put on this circuit board 31, and two supporting parts 41 that each keeper 40 includes In the opposite sides of light-emitting component 32, please also refer to shown in Fig. 3.

Refer to Fig. 4, the showing of backlight module 200 provided for second embodiment of the invention It is intended to.The knot of the backlight module 100 that this backlight module 200 provides with first embodiment Structure is essentially identical, and difference is: be arranged on multiple of luminescence unit the same side Support part 70 is sequentially connected.

Refer to Fig. 5, the showing of backlight module 300 provided for third embodiment of the invention It is intended to.The knot of the backlight module 200 that this backlight module 300 and the second embodiment provide Structure is essentially identical, and difference is: this backlight module 300 includes a keeper 80, and this keeper 80 includes a base 81 and to be arranged on this base 81 relative Two supporting parts 82 of both sides.This luminescence unit 30 is arranged on this base 81, and It is positioned at the center of this base 81.This luminescence unit 30 includes circuit board 31 and sets Put the multiple light-emitting components 32 on this circuit board 31.These two supporting parts 82 are symmetrical It is arranged on this base 81.Each supporting part 82 includes a loading end 821.At this In embodiment, this loading end 821 is inclined-plane, the medial surface of its this supporting part 82, and Distance between relative two loading ends 821 is along away from corresponding light-emitting component 32 Direction be gradually increased.This light guide plate 50 is arranged on these two loading ends 821, should The incidence surface 51 of light guide plate 50 is oppositely arranged with the plurality of light-emitting component 32.This leaded light The thickness of plate 50 is more than the minimum range between these two loading ends 821.

It is understood that in the present embodiment, this backlight module 300 can also wrap Include multiple keeper 80, the corresponding light-emitting component 32 of each keeper 80.Each Keeper 80 includes a base 81 and is arranged on the two of this base 81 opposite sides Individual supporting part 82.

It is understood that those skilled in the art also can do it in spirit of the present invention Its change, without departing from the technique effect of the present invention.These are according to this The change that bright spirit is done, within all should being included in scope of the present invention.

Claims

1. a backlight module, comprising:

Framework, this framework includes a base plate and the first framework being arranged on base plate opposite sides and the second framework；

Luminescence unit, it is arranged on this chassis base；

Multiple keepers, it is arranged on this chassis base, each keeper includes two supporting parts being arranged on the opposite sides of this luminescence unit, each supporting part includes the loading end relative with luminescence unit, this loading end is inclined-plane, and the distance between two loading ends included by each keeper is gradually increased along the direction away from this chassis base；And

Light guide plate, this light guide plate is arranged on the loading end of this supporting part, and this light guide plate includes an incidence surface, and this incidence surface is oppositely arranged with luminescence unit.

2. backlight module as claimed in claim 1, it is characterised in that the thickness of this light guide plate is more than the minimum range between these two loading ends.

3. backlight module as claimed in claim 1, it is characterised in that two supporting part shapes that each keeper includes are identical, arrange in specular.

4. backlight module as claimed in claim 1, it is characterised in that this luminescence unit includes circuit board and arranges multiple light-emitting components on the board.

5. backlight module as claimed in claim 4, it is characterised in that each light-emitting component both sides respectively arrange a supporting part, and each light-emitting component is arranged at the center of corresponding two supporting part.

6. backlight module as claimed in claim 1, it is characterised in that be provided with reflecting layer on this loading end, for reflecting the light that this luminescence unit sends.

7. backlight module as claimed in claim 1, it is characterised in that each keeper farther includes a base, and these two supporting parts are arranged on the opposite sides of this base, and this luminescence unit is arranged on the base.

8. backlight module as claimed in claim 7, it is characterised in that base and two supporting parts that each keeper includes are one-body molded.

9. backlight module as claimed in claim 1, it is characterised in that the multiple supporting parts being arranged on luminescence unit homonymy are sequentially connected.

10. a backlight module, comprising:

Framework, this framework includes a base plate and is arranged on framework and the side plate of base plate opposite sides；

Luminescence unit, it includes the circuit board arranged on which floor plate and arranges multiple light-emitting components on the board；

Multiple keepers, it is arranged on the board and relative with the plurality of light-emitting component respectively, each keeper includes two supporting parts being arranged on the opposite sides of corresponding light-emitting component, each supporting part includes the loading end relative with light-emitting component, this loading end is inclined-plane, and the distance between two loading ends included by each keeper is gradually increased along the direction away from this chassis base；And

Light guide plate, this light guide plate is arranged on the loading end of this supporting part, and this light guide plate includes an incidence surface, and this incidence surface is oppositely arranged with light-emitting component.