CN201331001Y

CN201331001Y - Novel backlight module

Info

Publication number: CN201331001Y
Application number: CNU2009200006337U
Authority: CN
Inventors: 火云
Original assignee: SHANGHAI 3LIGHT TECHNOLOGY Co Ltd
Current assignee: SHANGHAI 3LIGHT TECHNOLOGY Co Ltd
Priority date: 2009-01-09
Filing date: 2009-01-09
Publication date: 2009-10-21
Anticipated expiration: 2019-01-09

Abstract

The utility model relates to a novel backlight module, wherein, a luminous source is installed at one side of light conducting plate. The outer side of luminous source is also installed with a light source reflecting film which covers 3/4 of the external surface of luminous source. One end of light source reflecting film is also connected with the light conducting plate. The upper side of diffusion film is also installed with an optical prism diaphragm group which is composed by sequentially superposing at least one transverse optical prism diaphragm and one longitudinal optical prism diaphragm. The novel backlight module of the utility model can effectively collect the light around the luminous source together for forming plane light thereby increasing the brightness and definition of light. The energy conservation efficiency is more than 50% compared with that of the prior backlight module. Furthermore the service lifetime is prolonged to several tens of times. Simultaneously the backlight module of the utility model has the characteristics of no radiation, no shadow or dark space, high definition of picture, etc. The backlight module of the utility model is suitable for using in indoor or outdoor lamp box.

Description

The novel backlight source module

Technical field

The utility model relates to a kind of light supply apparatus, and especially a kind of brightness height, energy consumption are low, are applied to the novel backlight source module in the lamp box.

Background technology

The backlight module that tradition is used is the both sides that the number fluorescent tube are arranged at framework, light source is projected by both sides, and then diffuse into whole diffuser plate.Owing to the growth along with distance of the intensity of light source weakens, cause the uneven phenomenon of whole diffuser plate luminous intensity to take place easily.Therefore develop the backlight module that the straight-down negative fluorescent tube, its structure is the position backlight that fluorescent tube is crossed at the diffuser plate of backlight module, and when lamp tube starting, the lamp source is dispersed on the diffuser plate, make light source can spread all over diffuser plate, and do not have the strong and weak different shortcoming of light.

Yet, though be side casting type or direct-light-type backlight module in use ubiquity following problem: 1, the long-time illumination of fluorescent tube heating easily, produce heat deposition, exist phenomenon aging and that blow, service life is short; 2, fluorescent tube power consumption height is safeguarded and is changed frequently, the cost height.In addition, because at present present backlight number of components is more, its frame for movement is comparatively complicated, so the assembling of backlight and repair operation and all seem comparatively loaded down with trivial details; Because parts are more, be difficult to reduce cost simultaneously.Therefore, reduce owing to the various inconvenience that brings of parts, the assembling performance is bad, and the cost of reduction backlight etc. all is a urgent problem.

The utility model content

At the weak point that exists in the above-mentioned technology, the utility model provides a kind of project organization simple, and light is even, brightness is high, and energy consumption is low, can be effectively with the light-ray condensing around the light emitting source to a kind of novel backlight source module that forms planar light together.

For achieving the above object, the utility model provides a kind of novel backlight source module, comprise LGP, diffusion barrier and light emitting source, the upside of described diffusion barrier also is provided with light prism diaphragm group, and described smooth prism diaphragm group is laterally superposeed successively with light prism diaphragm longitudinally by at least one and constitutes.

Described light emitting source is arranged at described LGP one side, and the outside of described light emitting source also is provided with the light source reflectance coating.

Described light source reflectance coating is covered in 3/4 of described light emitting source outer surface, and an end of described light source reflectance coating also is connected with described LGP.

Described diffusion barrier and described reflectance coating are arranged at the uper side surface and the downside surface of described LGP respectively.

Described LGP is made by the plastic plate with light guide effect.

Described light emitting source also is connected with electron rectifier.

Described light emitting source can adopt T5 fluorescent lamp, T8 fluorescent lamp or LED lamp.

Compared with prior art, the utlity model has following advantage:

The novel backlight source module that the utility model provides, comprise LGP, diffusion barrier and light emitting source, light emitting source is arranged at LGP one side, the outside of light emitting source also is provided with the light source reflectance coating, the light source reflectance coating is covered in 3/4 of light emitting source outer surface, one end of light source reflectance coating also is connected with LGP, also is provided with light prism diaphragm group at the upside of diffusion barrier, and this light prism diaphragm group is laterally superposeed successively with light prism diaphragm longitudinally by at least one and constitutes.The utility model project organization is simple, can effectively will scatter to light emitting source light-ray condensing all around to forming planar light together, thereby improve the brightness and the definition of light, it is even to have light, the brightness height, low power consumption and other advantages, compare with existing backlight module, energy-saving efficiency reaches more than 50%, and also can prolong tens of times service life, because its assembling parts is few, has not only improved the assembling performance, has also reduced processing cost, also have radiationless simultaneously, shadow-free and dark space, characteristics such as image sharpness height are applicable to that the lamp box at indoor or outdoors uses.

Description of drawings

Fig. 1 is the utility model structural representation.

The main element symbol description is as follows:

1 LGP, 2 smooth prism diaphragm groups

3 diffusion barriers, 4 reflectance coatings

5 light emitting sources, 6 light source reflectance coatings

The specific embodiment

For clearer statement the utility model, the utility model will be further described below in conjunction with accompanying drawing.

As shown in Figure 1, LGP 1 is made by the plastic plate with light guide effect, also is respectively equipped with diffusion barrier 3 and reflectance coating 4 at the uper side surface of LGP and downside surface.Light emitting source 5 is arranged at LGP one side, and light emitting source can adopt T5 fluorescent lamp, T8 fluorescent lamp or LED lamp to make, and is connected with electron rectifier (not describing among the figure).The outside of light emitting source 5 also is provided with light source reflectance coating 6.This light source reflectance coating 6 is covered in 3/4 of light emitting source outer surface, also is connected with LGP uper side surface or downside surface with an end of light source reflectance coating.Upside at diffusion barrier 3 also is provided with light prism diaphragm group 2, and this light prism diaphragm group is laterally superposeed successively with light prism diaphragm longitudinally by at least one and constitutes.

In sum, the utility model can effectively will scatter to light emitting source light-ray condensing all around to forming planar light together, thereby improve the brightness and the definition of light, its energy-saving efficiency reaches more than 50%, and also can prolong tens of times service life, makes the effect of backlight reach the equalization point an of the best.In addition, because its assembling parts is few, not only improved the assembling performance, also reduced processing cost, also have radiationless, shadow-free and characteristics such as dark space, image sharpness height simultaneously, can be used as indoor or outdoors guidance lighting or advertising lamp box, also can be used for the lighting engineering in building trade, construction and decoration industry, city (comprising sub-district and building), also can be used for direction boards such as highway, automobile, station, handicraft etc.

More than disclosed only be several specific embodiment of the present utility model, still, the utility model is not limited thereto, any those skilled in the art can think variation all should fall into protection domain of the present utility model.

Claims

1, a kind of novel backlight source module comprises LGP, diffusion barrier and light emitting source, it is characterized in that, the upside of described diffusion barrier also is provided with light prism diaphragm group, and described smooth prism diaphragm group is laterally superposeed successively with light prism diaphragm longitudinally by at least one and constitutes.

2, a kind of novel backlight source module as claimed in claim 1 is characterized in that, described light emitting source is arranged at described LGP one side, and the outside of described light emitting source also is provided with the light source reflectance coating.

3, a kind of novel backlight source module as claimed in claim 2 is characterized in that, described light source reflectance coating is covered in 3/4 of described light emitting source outer surface, and an end of described light source reflectance coating also is connected with described LGP.

4, a kind of novel backlight source module as claimed in claim 1 is characterized in that, described diffusion barrier and described reflectance coating are arranged at the uper side surface and the downside surface of described LGP respectively.

5, a kind of novel backlight source module as claimed in claim 1 is characterized in that described LGP is made by the plastic plate with light guide effect.

6, a kind of novel backlight source module as claimed in claim 1 is characterized in that described light emitting source also is connected with electron rectifier.

7, a kind of novel backlight source module as claimed in claim 1 is characterized in that, described light emitting source can adopt T5 fluorescent lamp, T8 fluorescent lamp or LED lamp.