CN2771879Y

CN2771879Y - Light guide body structure

Info

Publication number: CN2771879Y
Application number: CN 200520004904
Authority: CN
Inventors: 曾文保
Original assignee: K Bridge Electronics Co Ltd
Current assignee: K Bridge Electronics Co Ltd
Priority date: 2005-02-21
Filing date: 2005-02-21
Publication date: 2006-04-12
Anticipated expiration: 2015-02-21

Abstract

The light guide body structure of the utility model is applied between a luminous body of light primary color of a back light module group and a display panel assembly. A plurality of pyramidal planes are mainly arranged at two positions at least used to make the luminous body light of each light primary color pass through on the light guide body. The passed light at least gets the actions of diffusion and mixed light of the pyramidal plane twice. The combined area of the wave length of the luminous body of each light primary color is effectively shortened.

Description

The light conductor structure

Technical field

The utility model relates to each light primary colors luminophor wavelength combination technology of module backlight, aims to provide a kind of simple in structure, assembling easily, and can effectively shorten the light conductor structure of each light primary colors luminophor wavelength in conjunction with desired zone.

Background technology

Press, general module backlight shows the white light effect, mainly be to utilize wavelength of light that the light primary colors luminophor (as light-emittingdiode) of R (red), G (green), three kinds of colors of B (blue) sent in addition in conjunction with forming, because all being existing angle, the light that each single smooth primary colors luminophor is produced penetrates, therefore must be as shown in Figure 1, it is overlapping smoothly that the diffusion that the light of each light primary colors luminophor 10 is seen through diffusion part 20 is able to the light of each light primary colors luminophor 10, modern each light primary colors luminophor 10 wavelength of light combine, to reach the mixed light effect.

Again, when the light of each light primary colors luminophor 10 passes through diffusion part 20, single diffusion part only can produce a diffusion by structure, the distance of light wave combination will be prolonged, the distance H 1 that is mixed light district A and each light primary colors luminophor 10 is far away, and therefore another located by prior art is promptly arranged, and utilizes the mode that increases diffusion number of packages amount, report the distance (or zone of reduction light wave combination) of the light of each light primary colors luminophor, and then reach the deployment cost that reduces relevant light-guide device through repeatedly diffusion shortening light wave combination.Yet, simple utilize increase diffusion number of packages amount with the light wave that shortens light primary colors luminophor in conjunction with between the distance when the practical application, discovery has the opposite position that respectively spreads between the part to be not easy to fix, to make assembling operation to be tending towards complicated loaded down with trivial details, and respectively spread part and must dispose, so problem such as applicability is lower with stack manner.

The utility model content

In view of this, the utility model light conductor structure, promptly in the many disappearances that solve each light primary colors luminophor wavelength combination technology of aforementioned module backlight, its light conductor is that dress is applied between the light primary colors luminophor and display panel assembly of module backlight, mainly be with light primary colors luminophor over against the position be provided with an incidence surface, and being provided with an exiting surface at plate end position over against the display panel assembly, the refraction action that is engaged in reflection shield is injected light primary colors luminophor light conductor from incidence surface light enters the display panel assembly that is provided in the display panel position through refraction repeatedly after by exiting surface.

Wherein, whole light conductor is at least two and uses the position of passing through for each light primary colors luminophor light that some pyramidal planes are set, the light that passed through of order is at least through diffusion, the mixed light effect of twice pyramidal plane, allow the wavelength of each light primary colors luminophor be combined into white light, can effectively shorten the zone of each light primary colors luminophor wavelength combination, and help whole module backlight and promote its white light quality; Especially, the design via most diffusions, mixed light position are set on single light conductor reduces each light primary colors luminophor wavelength of module backlight in conjunction with required the number of components that possesses, and the package technique of simplifying associated components.

Description of drawings

Fig. 1 is for commonly using the structural representation that module backlight utilizes auxiliary each the light primary colors luminophor wavelength combination of single diffusion part;

Fig. 2 is the application configuration constitutional diagram for the utility model light conductor;

Fig. 3 is the utility model light conductor stereoscopic figure;

Fig. 4 is another light conductor stereoscopic of the utility model figure;

Fig. 5 is the utility model light conductor stereoscopic figure again;

Fig. 6 is the structural representation that utilizes auxiliary each the light primary colors luminophor wavelength combination of diffuser for the utility model module backlight.

[figure number explanation]

A mixed light district

10 smooth primary colors luminophors

20 diffusion parts

30 display panel assemblies

40 light conductors

41 incidence surfaces

42 exiting surfaces

43 diffusers

44 hollow layers

50 reflection shields

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 utility model light conductor structure, the application assembling mode when the basic structure composition of its light conductor and enforcement mainly is to be applied between the light primary colors luminophor 10 and display panel assembly 30 of module backlight as shown in Figure 2; Wherein, light conductor 40 be with each light primary colors luminophor 10 over against the position be provided with an incidence surface 41, and be provided with an exiting surface 42 in display panel assembly 30 positions of module backlight, in this embodiment, the position, plate end that module backlight is provided in a side of display panel assembly 30 is provided with reflection shield 50, each light primary colors luminophor 10 then is provided in display panel assembly 30 medial region, and with the direction projection of its light towards reflection shield 50.

The exiting surface of aforementioned light conductor 40 promptly is right against the plate end position of display panel assembly 30, the light that so can each light primary colors luminophor 10 be injected light conductor 40 under the refraction action of reflection shield 50 from incidence surface 41 enters display panel assembly 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 conductor 40 is at least two and uses the position passed through for each light primary colors luminophor 10 light (for example the portion of incidence surface 41 as shown in the figure and exiting surface 42 lives, or light conductor 40 is subjected to the light refraction position of reflection shield 50 effect) some diffusers 43 are set, 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.

In addition, the structure of light conductor 40 also can be as shown in Figure 5, this light conductor 40 be with each light primary colors luminophor 10 over against the position be provided with an incidence surface 41, in light conductor 40 other sides then is exiting surface 42, the light of each light primary colors luminophor 10 is throwed via reflection shield 50 by incidence surface 41 to exiting surface 42 again, refract to display panel assembly 30 at last, make display panel assembly 30 uniformly light-emittings, in incidence surface 41 and exiting surface 42 some diffusers 43 are set equally, and all can form diffusion to the light that is passed through, more can further be provided with a hollow layer 44 to increase diffusion effect in light conductor 40 inboards.

According to this, each light primary colors luminophor 10 before entering display panel assembly 30, its light course as shown in Figure 6, be must be in advance by light conductor 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 conductor 40, to allow the wavelength of each light primary colors luminophor be combined into white light, can effectively shorten the mixed light district A of each light primary colors luminophor 10 wavelength combination, the distance H 2 of itself and each light primary colors luminophor 10 is nearer, and helps whole module backlight and promote its white light quality.

Especially, the design via most diffusions, mixed light position are set on single light conductor 40 can reduce each light primary colors luminophor wavelength of module backlight in conjunction with required the number of components that possesses, and the package technique of simplifying associated components.

As mentioned above, the utility model provides module one preferable feasible light conductor structure backlight, can effectively shorten each light primary colors luminophor wavelength in conjunction with required zone, and effectively promotes the white light quality of module backlight, so, offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be one of 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, all should belong within creation purpose of the present utility model and the claim.

Claims

1, a kind of light conductor structure, its light conductor are in order to constitute the wavelength combination of each light primary colors luminophor of module backlight; It is characterized in that:

This light conductor is to use the position of passing through for light primary colors luminophor light that some diffusers are set at its at least two, and the light that is passed through allows the wavelength of each light primary colors luminophor be combined into white light through diffusion, the mixed light effect of twice diffuser at least.

2, light conductor structure according to claim 1, it is characterized in that: this light conductor is that dress is applied between the light primary colors luminophor and display panel assembly of module backlight, this light conductor with light primary colors luminophor over against the position be provided with an exiting surface, and be provided with an exiting surface in position over against the display panel assembly.

3, light conductor structure according to claim 1, it is characterized in that: this light conductor is that dress is applied between the light primary colors luminophor and display panel assembly of module backlight, the position, plate end of display panel assembly is to be provided with reflection shield, each light primary colors luminophor promptly is provided in display panel assembly medial region, and with of the direction projection of its light towards reflection shield, this light conductor is the light primary colors luminophor that dress is applied in module backlight, between reflection shield and the display panel assembly, this light conductor with light primary colors luminophor over against the position be provided with an incidence surface, and over against display panel, the plate end position of assembly is provided with an exiting surface, and respectively this pyramidal plane promptly is arranged on the position of incidence surface and exiting surface.

4, as light conductor structure as described in claim 2 or 3, it is characterized in that: respectively this diffuser promptly is arranged on the position of incidence surface and exiting surface.

5, as light conductor structure as described in the claim 3, it is characterized in that: respectively this diffuser promptly is arranged on the light refraction position that incidence surface, exiting surface and light conductor are subjected to the reflection shield effect.

6, light conductor structure according to claim 1 is characterized in that: each diffuser is made of outstanding structure of several polygonal tapers or polygonal taper pit structure institute.

7, light conductor structure according to claim 1 is characterized in that: each diffuser is made of outstanding structure of polygonal taper or polygonal taper pit structure institute that one extends this position.

8, light conductor structure according to claim 1 is characterized in that: each diffuser is made of the linear trench structure that one extends this position.

9, light conductor structure according to claim 1 is characterized in that: further be provided with hollow layer in this light conductor.