CN201407602Y

CN201407602Y - Light conducting device of backlight module

Info

Publication number: CN201407602Y
Application number: CN2009200722962U
Authority: CN
Inventors: 蔡宗霖
Original assignee: Solid State Opto Ltd
Current assignee: Solid State Opto Ltd
Priority date: 2009-05-15
Filing date: 2009-05-15
Publication date: 2010-02-17
Anticipated expiration: 2019-05-15

Abstract

The utility model relates to a light conducting device of backlight module, which comprises a light conducting device and at least one a light source arranged on the side edge of the light conductingdevice, a circuit is arranged on the light conducting plate, and the light source is welded on the circuit of the light conducting plate. The device has the beneficial effects that the flow passage and the cost for assembling the light source on the light conducting plate are reduced.

Description

The guiding device of backlight module

Technical field

The utility model relates to a kind of backlight module, relates in particular to a kind of combining structure of LGP and light source of backlight module.

Background technology

The application of backlight module is very general, for example: mobile computer, display, mobile phone, LCD TV ... wait the not irradiative electronic equipment of display itself all to need backlight module that light source is provided.

General backlight module includes LGP and light source, for the electronic product that the body thickness requirement approaches, typically use LED as light source, and this light source is located at the side of LGP, first side of LGP then is provided with a reflector plate, second side surface opposite then is provided with the plural blooming piece of being made up of diffusion sheet and prismatic lens etc., and the periphery at those assemblies surrounds with a housing again.The light that light source sent is entered by the side projection of LGP, and part light is reflected by reflector plate, penetrates by diffusion sheet and prismatic lens in regular turn again.

For the less backlight module of size; because the area of LGP is less; so only need light source be installed in a side of LGP gets final product; but for larger-size backlight module, if light source only is installed in LGP one side, then the light that enters behind the LGP of projection can be decayed when being transmitted to opposite side gradually; cause the situation of the brightness irregularities of LGP; therefore, can light source all be installed in large-area LGP both sides usually, in order to improve the problem of aforementioned one-sided light source.

As shown in Figure 1, no matter be a side, the both sides or more polygon that light source are located at LGP, structure of the prior art all is that LED2 is located on the circuit board 3, again those LED2 are combined in LGP 1 side together with circuit board 3, therefore, during manufacturing, must earlier plural LED be welded on the circuit board, and then circuit board is fixed in LGP with technique for fixing, and whole processing procedure is comparatively loaded down with trivial details, and manufacturing cost is higher.

Summary of the invention

The utility model technical issues that need to address have provided a kind of guiding device of backlight module, are intended to solve the above problems.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

The utility model comprises: a LGP and at least one light source of being located at this LGP side are arranged; Described LGP is laid with circuit, and described light source is to be welded in the circuit that is located at this LGP.

Compared with prior art, the beneficial effects of the utility model are: reduce the flow process and the cost that light source are assembled in LGP.

Description of drawings

Fig. 1 is the LGP of backlight module and the schematic diagram of light source combination sturcture in the demonstration prior art;

Fig. 2 directly is welded on LED the embodiment schematic diagram of LGP one side for showing the utility model;

Fig. 3 directly is welded on LED the embodiment schematic diagram of LGP two sides for showing the utility model.

Fig. 4 is provided with plural shrinkage pool for demonstration the utility model in a side inside of LGP, and LED directly is welded on the embodiment schematic diagram of this shrinkage pool;

Fig. 5 is provided with plural shrinkage pool at LGP near position intermediate for demonstration the utility model, and the light source in the adjacent shrinkage pool is the embodiment schematic diagram of rightabout setting with throw light.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is described in further detail:

Main purpose of the present utility model is to solve the backlight module of prior art, will be combined in the laying structure of LGP as the LED of light source, and its processing procedure is more loaded down with trivial details, so that the manufacturing cost problem of higher.

Principal character of the present utility model, be with control backlight module light source circuitry needed directly on LGP, again LED is directly welded in this circuit and is positioned at the LGP side, to simplify the processing procedure that LED and LGP make up.

Technological means of the present utility model, be to control earlier whether light source starts or the circuit of luminous sequential is located on the LGP, and in a side, two sides or more sides of LGP the contact that connects this circuit is set according to need, then with the conductive junction point of LED directly and the welding of the contact of this circuit fixes.

A technological means more of the present utility model, be at least one recess to be set at the side that the LGP desire is provided with light source, and the contact of described circuit is located at both sides near this recess, or even in this recess, LED then places in this recess, and the conductive junction point of LED is fixedly welded on the contact of circuit, further to dwindle the volume of light guide module.

Another technological means of the present utility model, be at least one shrinkage pool to be set in the LGP inside that desire is provided with the light source side, and the contact of described circuit is located at both sides near this shrinkage pool, LED then places in this shrinkage pool, and the conductive junction point of LED is fixedly welded on the contact of circuit.

As seen from Figure 2: the guiding device of the backlight module that the utility model provides, wherein an embodiment includes a LGP 1 and at least one plural LED2 that is located at these LGP 1 one sides; Wherein, described LGP 1 is laid with and is used for controlling LED2 and whether starts the circuit that reaches functions such as luminous sequential, described each LED2 is located at respectively on the support 21, and the contact that will be located at support 21 two ends again directly is welded on the circuit junction 12 of recess 11 both sides on the LGP 1.When the area of LGP is big, obtain enough light-inletting quantities in order to make whole LGP, can all directly weld plural LED2 in the relative both sides of LGP 1 as shown in Figure 3 in aforesaid mode.Even can all weld LED at each side of LGP.

Fig. 4 is another embodiment that shows the utility model guiding device, be a plurality of shrinkage pools 13 to be set in the position of LGP 1 internal interface proximal edges, the contact 12 of described circuit then is set on the LGP of each shrinkage pool 13 both sides, the conductive junction point of led support 21 is fixedly welded on this contact 12 again, makes LED2 be positioned at this shrinkage pool 13.This shrinkage pool 13 can be located at the side near LGP 1, also can be located near the relative both sides of LGP or more sides.

Fig. 5 is an embodiment again who shows this creation guiding device, be near position intermediate plural shrinkage pool 13 to be set at LGP 1, the contact 12 of described circuit then is set on the LGP of each shrinkage pool 13 both sides, the conductive junction point of led support 21 is fixedly welded on this contact 12 again, makes LED2 be positioned at this shrinkage pool 13; Under this layout state, for the light that LGP can be throwed is contained fully, the LED2 in the adjacent shrinkage pool 13 is the rightabout setting, enters LGP with staggered throw light.

The above in order to explain preferred embodiment of the present utility model, is not that attempt is done any pro forma restriction to the utility model according to this only.All have following of identical spirit do relevant any modification or change, all must be included in the utility model intention protection domain.

Claims

1, a kind of guiding device of backlight module comprises: a LGP and at least one light source of being located at this LGP side are arranged; It is characterized in that: described LGP is laid with circuit, and described light source is to be welded in the circuit that is located at this LGP.

2, the guiding device of backlight module according to claim 1 is characterized in that: the edge of this LGP is provided with recess, and described light source is located in this recess.

3, the guiding device of backlight module according to claim 1 and 2 is characterized in that: this light source is located at a side of described LGP.

4, the guiding device of backlight module according to claim 1 and 2 is characterized in that: this light source is located at the relative dual-side of described LGP.

5, the guiding device of backlight module according to claim 1 and 2 is characterized in that: this light source is located at three sides of described LGP.

6, the guiding device of backlight module according to claim 1 and 2 is characterized in that: this light source is located at each side of described LGP.

7, the guiding device of backlight module according to claim 1 is characterized in that: this LGP inside is provided with shrinkage pool, and described light source is located in this shrinkage pool.

8, the guiding device of backlight module according to claim 7 is characterized in that: this shrinkage pool is the side near described LGP.

9, the guiding device of backlight module according to claim 7 is characterized in that: this shrinkage pool is the relative dual-side near described LGP.

10, the guiding device of backlight module according to claim 7 is characterized in that: this shrinkage pool is three sides near described LGP.

11, the guiding device of backlight module according to claim 7 is characterized in that: this shrinkage pool is each side near described LGP.

12, the guiding device of backlight module according to claim 7 is characterized in that: plural described shrinkage pool is the centre of being located near this LGP, and the described light source in the adjacent shrinkage pool is to be the rightabout setting.