CN208270892U - A kind of low-power consumption LED backlight - Google Patents

Abstract

The utility model discloses a kind of low-power consumption LED backlights, including shading glue, upper bright enhancement film, lower bright enhancement film, diffusion sheet and light guide plate, the shading glue is covered on bright enhancement film upper surface, the upper bright enhancement film is reversed prism structure, it is PET base material among upper bright enhancement film, the PET base material surface is coated with atomization coating, PET base material bottom is covered with the downward prismatic lens of apex angle, the lower bright enhancement film is located at below upper bright enhancement film, and lower bright enhancement film disposing way and structure are identical as upper bright enhancement film, the diffusion sheet is placed in lower bright enhancement film bottom, diffusion sheet exists with lower bright enhancement film to be contacted, the light guide plate is placed in diffusion sheet bottom, the light guide plate is that inverted V-shaped cuts light guide plate, the groove of light guide plate is located at the one side that diffusion sheet is contacted with light guide plate.The low-power consumption LED backlight has the characteristics that low power consuming, while can also be particularly shown visual angle, prevents information leakage.

Description

A kind of low-power consumption LED backlight

Technical field

The utility model belongs to back light source technique field, and in particular to a kind of low-power consumption LED backlight.

Background technique

Backlight is in the products such as a kind of light source, such as television set, display of liquid crystal display behind.Its hair Light effect will directly influence the visual effect of liquid crystal display.Liquid crystal display itself does not shine, it show figure or it To the result of light modulation.In life, becomes people's lives already using mobile phone or computer and be accustomed to, even public Also many people can be often seen under occasion using mobile phone, in the various hardware devices of this electronic product, display screen is often First current consuming apparatus, common display screen increases the misgivings of user there are also the possibility pried through by other people under public arena.

Utility model content

The purpose of this utility model is to provide a kind of low-power consumption LED backlights, to solve to propose in above-mentioned background technique The problem of.

To achieve the above object, the utility model provides the following technical solutions: a kind of low-power consumption LED backlight, including hides Optical cement, upper bright enhancement film, lower bright enhancement film, diffusion sheet and light guide plate, the shading glue are covered on bright enhancement film upper surface, the upper increasing Light film is reversed prism structure, is PET base material among upper bright enhancement film, the PET base material surface is coated with atomization coating, PET base material Bottom is covered with the downward prismatic lens of apex angle, and the lower bright enhancement film is located at below upper bright enhancement film, and lower bright enhancement film disposing way and knot Structure is identical as upper bright enhancement film, and the diffusion sheet is placed in lower bright enhancement film bottom, and diffusion sheet exists with lower bright enhancement film to be contacted, described Light guide plate is placed in diffusion sheet bottom.

Preferably, the light guide plate is that inverted V-shaped cuts light guide plate, and the groove of light guide plate is located at diffusion sheet and contacts with light guide plate One side.

Preferably, the light guide plate bottom is equipped with light guide plate mesh point.

Preferably, the light guide plate lateral wall is placed with light emitting diode.

Preferably, the angle of the prismatic lens apex angle is 68 degree.

The technical effect and advantage of the utility model: the low-power consumption LED backlight, by the inverted V-shaped for being provided with light guide plate Cutting structure design, effectively improves the brightness at formal angle；Reversed prism structure is designed to by that will add lustre to, to improve positive visual angle picture Brightness, reduce LED power consumption and prevent information leakage；By being provided with LED backlight under conditions of meeting display demand, drop Low-power consumption promotes the cruising ability of product.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is membrane structure diagram of adding lustre on the utility model.

In figure: 1 shading glue, bright enhancement film, 21 atomization coatings, 22PET substrate, 23 prismatic lens, 3 lower bright enhancement films, 4 diffusions on 2 Piece, 5 light guide plates, 51 light guide plate mesh points, 52 light emitting diodes.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

The utility model provides a kind of low-power consumption LED backlight as shown in Figs. 1-2, including shading glue 1, upper bright enhancement film 2, lower bright enhancement film 3, diffusion sheet 4 and light guide plate 5, the shading glue 1 are covered on 2 upper surface of bright enhancement film, and the upper bright enhancement film 2 is Reversed prism structure, is PET base material 22 among upper bright enhancement film 2, and 22 surface of PET base material is coated with atomization coating 21, PET base material Bottom is covered with the downward prismatic lens 23 of apex angle, and the lower bright enhancement film 3 is located at upper 2 lower section of bright enhancement film, and 3 disposing way of lower bright enhancement film And structure is identical as upper bright enhancement film 2, the diffusion sheet 4 is placed in lower 3 bottom of bright enhancement film, and diffusion sheet 4 and lower bright enhancement film 3 exist Contact, the light guide plate 5 are placed in 4 bottom of diffusion sheet.

Specifically, the light guide plate 5 is that inverted V-shaped cuts light guide plate, the groove of light guide plate 5 is located at diffusion sheet 4 and light guide plate 5 The one side of contact.

Specifically, 5 bottom of light guide plate is equipped with light guide plate mesh point 51, since the inverted V-shaped cutting structure of light guide plate 5 can drop The low uniformity entirely shown needs to carry out optical design using light tool optical simulation software thus, to light guide plate The key parameters such as arranging rule, site diameter, the arrangement density of site 51 adjust accordingly.

Specifically, 5 lateral wall of light guide plate is placed with light emitting diode 52.

Specifically, the angle of 23 apex angle of prismatic lens is 68 degree, the UV glue ingredient of prismatic lens 23 is adjusted, not In the case where influencing Refractive Index of Glass Prism, the elasticity of this body structure of prism is improved, makes it in mutual friction process, prism structure Itself brittle failure can be prevented with Light deformation and rebound.

Specifically, the low-power consumption LED backlight can show need meeting since backlight uses light emitting diode 52 Power consumption is reduced under conditions of asking, promotes the cruising ability of product, by the way that upper bright enhancement film 2 and lower bright enhancement film 3 are designed to reversed prism Structure initially enters 23 structure of prismatic lens added lustre to from the light of 4 light-emitting surface of diffusion sheet, by the refractions of prismatic lens 23 and is all-trans It penetrates, the light of all directions is concentrated within the scope of 20 degree of light-emitting surface normal, to improve the brightness at the positive visual angle of light-emitting surface and prevent Information leakage.The inverted V-shaped cutting structure of light guide plate 5 designs, can by the ray-collecting of all directions within the scope of 30 degree of positive visual angle, To effectively improve the brightness at formal angle.

Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention, it is not limited to this Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art For, it is still possible to modify the technical solutions described in the foregoing embodiments, or to part of technical characteristic It is equivalently replaced, within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on, It should be included within the scope of protection of this utility model.

Claims (5)

1. a kind of low-power consumption LED backlight, including shading glue (1), upper bright enhancement film (2), lower bright enhancement film (3), diffusion sheet (4) and lead Tabula rasa (5), it is characterised in that: the shading glue (1) is covered on bright enhancement film (2) upper surface, and the upper bright enhancement film (2) is inverse edge Mirror structure, intermediate upper bright enhancement film (2) is PET base material (22), and PET base material (22) surface is coated with atomization coating (21), PET Substrate bottom is covered with the downward prismatic lens of apex angle (23), and the lower bright enhancement film (3) is located at below upper bright enhancement film (2), and under add lustre to Film (3) disposing way and structure are identical as upper bright enhancement film (2), and the diffusion sheet (4) is placed in lower bright enhancement film (3) bottom, expand Discrete piece (4) exists with lower bright enhancement film (3) to be contacted, and the light guide plate (5) is placed in diffusion sheet (4) bottom.

2. a kind of low-power consumption LED backlight according to claim 1, it is characterised in that: the light guide plate (5) is inverted V-shaped Light guide plate is cut, the groove of light guide plate (5) is located at the one side that diffusion sheet (4) is contacted with light guide plate (5).

3. a kind of low-power consumption LED backlight according to claim 1, it is characterised in that: light guide plate (5) bottom is equipped with Light guide plate mesh point (51).

4. a kind of low-power consumption LED backlight according to claim 1, it is characterised in that: light guide plate (5) lateral wall is put It is equipped with light emitting diode (52).

5. a kind of low-power consumption LED backlight according to claim 1, it is characterised in that: prismatic lens (23) apex angle Angle is 68 degree.