CN203686762U

CN203686762U - Backlight device

Info

Publication number: CN203686762U
Application number: CN201320830807.9U
Authority: CN
Inventors: 刘元
Original assignee: DAYEAR ELECTRONIC Co Ltd
Current assignee: DAYEAR ELECTRONIC Co Ltd
Priority date: 2013-12-13
Filing date: 2013-12-13
Publication date: 2014-07-02
Anticipated expiration: 2023-12-13

Abstract

The utility model provides a backlight device. The backlight device comprises a bracket frame, as well as a back fixing baffle, a reflective film, a light guide plate layer, a diffusion film and a front fixing baffle which are sequentially arranged in the bracket frame, wherein the front fixing baffle is made of a transparent material, the light guide plate layer comprises at least two light guide plates which are arranged in parallel, a first mask film is arranged between the light guide plates, light sources are arranged on the end surfaces, adjacent to the mask film, of the light guide plates, light is transmitted into the light guide plates by the light sources from the end surfaces of the light guide plates, and the colors of the light sources corresponding to the light guide plates are completely different. The backlight device can realize multiple colors in one plate, is simple in manufacturing technology, and reduces cost.

Description

A kind of back lighting device

Technical field

The utility model relates to a kind of back lighting device.

Background technology

Multiple color is backlight simultaneously seldom in the market a plate, and what have is also to isolate by frame structure, and the weight ratio of product cost heavier and product is just higher like this, produces also cumbersome.

Utility model content

The purpose of this utility model is to overcome the defect of prior art, provides a kind of and can realize a plate polychrome, the simple and cost-effective back lighting device of manufacture craft.

The utility model is achieved in that a kind of back lighting device, comprise stand frame and be sequentially located at the back side fixed dam in described stand frame, reflectance coating, leaded light flaggy, diffusion barrier and front fixed dam, described front fixed dam is transparent material, described leaded light flaggy comprises at least two LGPs that are arranged side by side, between described LGP, be provided with the first photomask, the end face adjacent with described the first photomask of described LGP is provided with light source, described light source emits light in described LGP from described LGP end face, the color of the light source that described in each, LGP is corresponding is different.

Further, described in each, LGP two ends are equipped with same color light source.

Further, described light source is LED light source.

Further, described leaded light flaggy both sides are provided with the first photomask.

Further, described the first photomask is the imperial photomask of mute silver.

Further, the back side of described back side fixed dam is provided with the second photomask.

The utility model provides a kind of back lighting device, the leaded light flaggy being made up of at least two LGPs is side by side set in stand frame, between each LGP, separate with the first photomask, end face at each LGP arranges respectively light source, light source emits light into LGP from LGP end face, each LGP for light source be arranged to different colours, the first photomask can effectivelyly prevent that the light in each LGP is transferred in adjacent LGP, in order to utilize to greatest extent light source and to avoid light leak, the LGP back side is provided with reflectance coating, LGP front is provided with diffusion barrier, the simple structure that adopts the utility model has realized how light of a plate, manufacture craft is simple, cost is low.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

A kind of back lighting device schematic diagram side view that Fig. 1 provides for the utility model embodiment;

A kind of back lighting device schematic diagram front view that Fig. 2 provides for the utility model embodiment.

The specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.

The utility model embodiment provides a kind of back lighting device, comprise stand frame 1 and be sequentially located at the back side fixed dam 2 in described stand frame 1, reflectance coating 3, leaded light flaggy, diffusion barrier 5 and front fixed dam 6, described front fixed dam 6 is transparent material, described leaded light flaggy comprises at least two LGPs that are arranged side by side 4, between described LGP 4, be provided with the first photomask 9, the end face adjacent with described the first photomask 9 of described LGP 4 is provided with light source 7, described light source 7 emits light in described LGP 4 from described LGP 4 end faces, described in each, the color of the light source 7 of LGP 4 correspondences is different.A kind of back lighting device of the present utility model, the leaded light flaggy being formed by least two LGPs 4 side by side in the interior setting of stand frame 1, between each LGP 4, separate with the first photomask 9, end face at each LGP 4 arranges respectively light source 7, light source 7 emits light into LGP 4 from LGP 4 end faces, each LGP 4 for light source 7 be arranged to different colours, the first photomask 9 can effectivelyly prevent that the light in each LGP 4 is transferred in adjacent LGP 4, in order to utilize to greatest extent light source 7 and to avoid light leak, LGP 4 back sides are provided with reflectance coating 3, LGP 4 fronts are provided with diffusion barrier 5, the simple structure that adopts the utility model has realized how light of a plate, manufacture craft is simple, cost is low.

In the embodiment of a kind of back lighting device of the utility model, described in each, LGP 4 two ends are equipped with same color light source 7, are convenient to LGP 4 even light-guidings, a little less than being unlikely to light intensity one end, one end light; Described light source 7 is LED light source 7; Described leaded light flaggy both sides are provided with the first photomask 9, prevent side light leak; Further, described the first photomask 9 is the imperial photomask of mute silver; The back side of described back side fixed dam 2 is provided with the second photomask 8, can effectively prevent back side light leak, improves light source 7 utilization rates.

In the embodiment of a kind of back lighting device of the utility model, light source 7 enters LGP 4 from parallel LGP 4 two ends of both direction, in this process, light can be with the feature of itself 4 li of LGPs, there is reflection and the refraction of different directions, wherein a part can arrive the rear of LGP 4 thoroughly, we just have and paste below reflectance coating 3 at LGP 4 like this, allow its light reflect back, separately we are three at middle three LGP 4(the present embodiment, in other embodiments, do not limit the quantity of described LGP 4) side paste respectively first photomask 9, prevent light leak outside and anaclasis go to the region of other LGPs 4, after finally assembling, the light that we just can isolate different colours is like this luminous in the region of regulation, can not be refracted to 4 li of the LGPs that it is adjacent, cause colour mixture and so on, just reach our needed effect requirements.

The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. a back lighting device, it is characterized in that, comprise stand frame and be sequentially located at back side fixed dam, reflectance coating, leaded light flaggy, diffusion barrier and the front fixed dam in described stand frame, described front fixed dam is transparent material, described leaded light flaggy comprises at least two LGPs that are arranged side by side, between described LGP, be provided with the first photomask, the end face adjacent with described photomask of described LGP is provided with light source, described light source emits light in described LGP from described LGP end face, and the color of the light source that described in each, LGP is corresponding is different.

2. back lighting device as claimed in claim 1, is characterized in that: described in each, LGP two ends are equipped with same color light source.

3. back lighting device as claimed in claim 1 or 2, is characterized in that: described light source is LED light source.

4. back lighting device as claimed in claim 1, is characterized in that: described leaded light flaggy both sides are provided with the first photomask.

5. the back lighting device as described in claim 1 or 4, is characterized in that: described the first photomask is the imperial photomask of mute silver.

6. back lighting device as claimed in claim 1, is characterized in that: the back side of described back side fixed dam is provided with the second photomask.