CN2802544Y

CN2802544Y - Light regulating structure of side light type backlight mould set

Info

Publication number: CN2802544Y
Application number: CN 200520108800
Authority: CN
Inventors: 曾文保
Original assignee: K Bridge Electronics Co Ltd
Current assignee: K Bridge Electronics Co Ltd
Priority date: 2005-06-08
Filing date: 2005-06-08
Publication date: 2006-08-02
Anticipated expiration: 2015-06-08

Abstract

The utility model relates to a light regulating structure of a side light type backlight module set. A light source is arranged in a lamp shade, the end of a light guiding plate is sheathed on an opening of the lamp shade, and then light rays of the light source shoot into the light guiding plate from the end of the plate and shoot out towards the prospective plate surface of the light guiding plate, so the effect of light source indication is achieved, wherein a light regulating structure is arranged between the light source and the light guiding plate, a light-in surface of the light regulating structure is arranged over against the light source, and a light-out surface is arranged at the position of the end of the light guiding plate. A plurality of diffusing bodies are arranged on the light-in surface and the light-out surface, so the light rays of the light source are led to shoot into the front of the light guiding plate and the diffusing bodies of the light regulating structure can be used for providing the light rays. Thus, the passing light rays are at least diffused two times by the diffusing bodies in order to be more effectively used.

Description

The light modulation structure of side-light type module backlight

Technical field

The utility model relates to the light modulation structure of module backlight, particularly a kind of light modulation structure that is applied to side-light type module backlight.

Background technology

Pressing, generally be applied in the LCD of information device, is can be according to the demand of actual design, and selects to utilize the module framework backlight of straight-down negative or side-light type; As shown in Figure 1, be the basic structure synoptic diagram of side-light type module framework backlight, it mainly is in a lampshade 10 light source 20 to be set, and the plate end of a light guide plate 30 is set in the opening part of lampshade 10, light guide plate 30 tops then are provided with several pieces of blooming pieces 50 and display panel 60 in regular turn, to allow the light of light source 20 go into light guide plate 30 and penetrate, to reach the effect that light source shows towards the plate face of light guide plate 30 expection from the plate end-fire.

When light source 20 when the light of light source outgoing plane direction projection is injected light guide plate 30, and will cause the phenomenon of light guide plate 30 near light source 20 places light covers, produce bright rays district band in the zone that this light is concentrated, and then influence the LCD picture quality.

The utility model content

In view of this, the light modulation structure of the utility model side-light type module backlight, i.e. many disappearances of influencing the LCD picture quality solving that aforementioned side-light type module backlight is easy to that the light source place produces that the bright rays district brings into, be provided with a light modulation structure between its light source and light guide plate, this light modulation structure be with light source over against the position be provided with an incidence surface, and be provided with an exiting surface at plate end position with light guide plate, and be equipped with a plurality of diffusers on incidence surface and the exiting surface, before making the light of light source inject light guide plate, be able to diffuser setting by this light modulation structure, the light that order is passed through is able to light is made more efficient use at least through the diffusion of twice diffuser.

Description of drawings

Fig. 1 is for commonly using the structural representation of side-light type module backlight;

Fig. 2 is the light modulation structure application configuration constitutional diagram for the utility model side-light type module backlight;

Fig. 3 is the stereographic map for light modulation structure in the utility model;

Fig. 4 is the stereographic map for another light modulation structure in the utility model;

Fig. 5 is the stereographic map that ducted body is set for light modulation structure in the utility model;

Fig. 6 is the stereographic map for another ducted body in the utility model;

Fig. 7 is for utilize the structural representation of auxiliary each the light source diffusion of diffuser for the utility model module backlight.

[figure number explanation]

10 lampshades

20 light sources

30 light guide plate

40 light modulation structures

41 incidence surfaces

42 exiting surfaces

43 diffusers

50 blooming pieces

60 display panels

70 ducted bodies

Embodiment

For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:

The light modulation structure of the utility model side-light type module backlight, the whole as shown in Figure 2 side-light type of application assembling mode module backlight when the basic structure composition of its light modulation structure and enforcement is in a lampshade 10 light source 20 to be set equally, and the opening part that the plate end of a light guide plate 30 is set in lampshade 10 is to allow the light of light source 20 go into light guide plate 30 and penetrate towards the plate face of light guide plate 30 expections from the plate end-fire, to reach the effect that light source shows; Wherein 30 of light source 20 and light guide plate are provided with a light modulation structure 40, this light modulation structure 40 be with light source 20 over against the position be provided with an incidence surface 41 and be provided with an exiting surface 42 at plate end position with light guide plate 30, in this embodiment, module backlight is provided in a side of light guide plate 30 tops and is provided with several pieces of blooming pieces 50, it can be by 1～3 diffusion sheet, 0～2 brightening piece, collocation such as 0～1 reflecting polarized wafers etc. mutually form, and in several pieces of blooming pieces 50 tops display panel 60 is set, with its light towards several pieces of blooming pieces 50 and in the direction projection of display panel 60.

The exiting surface of aforementioned light modulation structure 40 promptly is right against the plate end position of light guide plate 30, each light source 20 soon like this is injected light modulation structure 40 from incidence surface 41 light enters light guide plate 30 via exiting surface 42, to allow whole module backlight produce the brightness expression effect of expection.

Please cooperate simultaneously with reference to Fig. 2 and shown in Figure 3, whole light modulation structure 40 is provided with some diffusers 43 in the position of passing through for each light source 20 light (incidence surface 41 as shown in the figure and the position of exiting surface 42), each diffuser is can be by the outstanding structure of several polygonal tapers as shown in the figure, or the pit of several polygonal tapers structure (figure slightly) constitutes, being arranged at can with the outstanding structure of polygonal taper or the pit of polygonal taper structure be designed to the structural form that one extends whole configuration position, also or be the structure of different geometries, as shown in Figure 4, can be the form of linear groove, and all can form diffusion the light that is passed through.

According to this, each light source 20 enter light guide plate 30 before, its light course is must be in advance by light modulation structure 40, and order the light that passed through at least through diffusion, the mixed light effect of twice diffuser 43 in the effect of light modulation structure 40, can reduce the obvious difference of dark line, bright rays district band, and be able to light is made more efficient use.

Moreover, can further be provided with ducted body 70 in this light modulation structure 40 to increase diffusion effect, as shown in Figure 5, its ducted body 70 is the forms for continuous shape, perhaps as shown in Figure 6, by the not homomorphs of discontinuous form are constituted, all can form diffusion as shown in Figure 7 to the light that is passed through.

As mentioned above, the utility model provides side-light type module one preferable feasible light modulation structure backlight, so offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be the utility model preferred embodiment, be not to limit to the utility model with this, be with, approximate with structure of the present utility model, device, feature etc. such as, identical person all should belong to of the present utility model founding within purpose and the claim.

Claims

1, the light modulation structure of a kind of side-light type module backlight, in its lampshade light source is set, and the plate end of a light guide plate is set in the opening part of lampshade, to allow the light of light source go into light guide plate and penetrate, to reach the effect that light source shows towards the plate face of light guide plate expection from the plate end-fire; It is characterized in that:

Be provided with a light modulation structure between this light source and light guide plate, this light modulation structure be with light source over against the position be provided with an incidence surface, and be provided with an exiting surface, and be equipped with a plurality of diffusers on incidence surface and the exiting surface at plate end position with light guide plate.

2, the light modulation structure of side-light type module backlight according to claim 1 is characterized in that: each diffuser is made of the outstanding structure of several polygonal tapers institute.

3, the light modulation structure of side-light type module backlight according to claim 1 is characterized in that: each diffuser is made of several polygonal taper pits structure institutes.

4, the light modulation structure of side-light type module backlight according to claim 1 is characterized in that: each diffuser is made of the outstanding structure of the polygonal taper that extends this position institute.

5, the light modulation structure of side-light type module backlight according to claim 1 is characterized in that: each diffuser is made of the polygonal taper pit structure institute that one extends this position.

6, the light modulation structure of side-light type module backlight according to claim 1 is characterized in that: each diffuser is made of the linear trench structure that one extends this position.

7, the light modulation structure of side-light type module backlight according to claim 1 is characterized in that: further be provided with ducted body in this light modulation structure.

8, as the light modulation structure of side-light type module backlight as described in the claim 7, it is characterized in that: this ducted body is to be continuous shape.

9, as the light modulation structure of side-light type module backlight as described in the claim 7, it is characterized in that: this ducted body is to be discontinuous form.

10 light modulation structures of side-light type module backlight according to claim 1 is characterized in that: this light guide plate top is provided with several pieces of blooming pieces.