CN219997332U - Direct type glass diffusion plate with edge dark band for improving brightness - Google Patents

Abstract

The utility model belongs to the technical field of glass diffusion plates, and particularly relates to a direct type glass diffusion plate with edge dark band for improving brightness, which comprises the following components: the LED lamp panel comprises an LED lamp panel and a support frame arranged on the side edge of the LED lamp panel, wherein the support frame supports a glass substrate, the glass substrate and the LED lamp panel are oppositely arranged, an optical film is arranged on one side, far away from the LED lamp panel, of the glass substrate at intervals, and a diffusion coating is arranged on one side, facing the LED lamp panel, of the glass substrate; the four end faces of the glass substrate are respectively provided with a reflecting strip, and prism layers are arranged in the reflecting strips so as to reflect light rays emitted from the end faces of the glass substrate into the diffusion coating. The direct type glass diffusion plate with the edge dark band for improving the brightness has the effect of improving the brightness of the edge dark band area, thereby improving the picture effect of the diffusion plate.

Description

Direct type glass diffusion plate with edge dark band for improving brightness

Technical Field

The utility model belongs to the technical field of glass diffusion plates, and particularly relates to a direct type glass diffusion plate with edge dark bands for improving brightness.

Background

When the direct type backlight module is used for assembling the light-equalizing component diffusion plate, as the four edges of the direct type backlight module are provided with the supporting frames, the frame and the diffusion plate are in direct contact with each other, light of the LED lamp beads cannot enter, so that dark bands are generated on the four edges of the diffusion plate, the backlight module is matched with the glass diffusion plate, the width of the supporting frames is approximately 1.5-3mm, the marginal dark bands seriously influence the picture effect of the diffusion plate, the current ultra-narrow frames or frame-free display pursuit cannot be met, the product cannot be applied to a spliced screen display product with narrow splice seams, and the application range of the product is severely limited.

Disclosure of Invention

The utility model aims to provide a direct type glass diffusion plate with edge dark bands for improving brightness, which solves the technical problem that the edge dark bands seriously influence the picture effect of the diffusion plate, and achieves the purpose of improving the brightness of the edge dark band area, thereby improving the picture effect of the diffusion plate.

In order to solve the above technical problems, the present utility model provides a direct type glass diffusion plate with edge dark bands for improving brightness, comprising:

the LED lamp panel comprises an LED lamp panel and a support frame arranged on the side edge of the LED lamp panel, wherein the support frame supports a glass substrate, the glass substrate and the LED lamp panel are oppositely arranged, an optical film is arranged on one side, far away from the LED lamp panel, of the glass substrate at intervals, and a diffusion coating is arranged on one side, facing the LED lamp panel, of the glass substrate;

the four end faces of the glass substrate are respectively provided with a reflecting strip, and prism layers are arranged in the reflecting strips so as to reflect light rays emitted from the end faces of the glass substrate into the diffusion coating.

Further, the prism layer is provided with a plurality of continuous pointed bulges on the inner side, and the angle of the pointed bulges at the top angle of the upper part is gradually reduced from the light incident surface of the glass substrate to the light emergent surface of the glass substrate.

Further, the prism layer is attached to the glass substrate through a first double-sided adhesive layer.

Further, a second double-sided adhesive layer is arranged between the support frame and the glass substrate.

Further, the thicknesses of the prism layer, the reflection layer and the first double-sided adhesive layer are 0.3mm.

The beneficial effects of the utility model are as follows:

1. the prism layer can intensively reflect the light rays reflected by the end face back to the diffusion coating at the dark zone, so that the light ray intensity of the dark zone area is improved.

2. Through the structure that the angle of the prism apex angle of the prism layer gradually decreases from the light incident surface of the diffusion plate to the light emergent surface, the smaller the angle of the prism apex angle is, the more obvious the light collecting effect is, the light rays in a dark area are made up, and the brightness and the picture effect of the dark area are improved.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a direct type glass diffuser plate with enhanced brightness in the edge dark band according to the present utility model;

fig. 2 is a schematic view showing the reflection and refraction structure of a prism layer of a direct type glass diffusion plate with enhanced brightness by an edge dark band according to the present utility model.

In the figure:

1. an LED lamp panel;

2. a support frame;

3. a glass substrate; 31. an optical film; 32. a diffusion coating;

4. a reflective strip;

5. a prism layer; 51. a pointed protrusion;

6. a first double-sided adhesive layer;

7. and a second double-sided adhesive layer.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples:

as shown in fig. 1 to 2, a direct type glass diffusion plate with enhanced brightness by an edge dark band, comprising: the LED lamp panel 1 and the support frame 2 arranged on the side edge of the LED lamp panel 1, the support frame 2 supports the glass substrate 3, the glass substrate 3 and the LED lamp panel 1 are oppositely arranged, the optical films 31 are arranged on one side, away from the LED lamp panel 1, of the glass substrate 3 at intervals, and the diffusion coating 32 is arranged on one side, facing the LED lamp panel 1, of the glass substrate 3;

as shown in fig. 1, the four end surfaces of the glass substrate 3 are provided with reflective strips 4, and the inside of the reflective strips 4 is provided with a prism layer 5 to reflect light rays emitted from the end surfaces of the glass substrate 3 into the diffusion coating 32.

In this embodiment, a plurality of continuous pointed protrusions 51 are disposed on the inward side of the prism layer 5, and the angle of the pointed protrusions 51 at the top corner of the upper portion gradually decreases from the light incident surface of the glass substrate 3 to the light emergent surface of the glass substrate 3, so as to improve the light collecting effect of the prism layer 5.

Wherein, the prism layer 5 is attached to the glass substrate 3 through the first double-sided adhesive layer 6, so that the prism layer 5 is stably fixed on the glass substrate 3, and the connection stability between the prism layer 5 and the glass substrate 3 is improved.

In this embodiment, the prism layer 5, the reflective layer and the first double-sided adhesive layer 6 have a thickness of 0.3mm.

As shown in fig. 1 and 2, a second double-sided adhesive layer 7 is provided between the support frame 2 and the glass substrate 3.

As shown in fig. 1 and 2, when the reflected light irradiates the straight edge of the upper surface of the pointed protrusion 51 of the prism layer 5, since the incident angle is larger, the medium adjacent to the prism film is double sided tape, in this embodiment, the double sided tape material is acrylic resin, the refractive index is between 1.35 and 1.5, and the refractive index of the prism film material is greater than that of the double sided tape material, so that the light incident at a large angle irradiates the lower surface of the prism film after total reflection on the upper surface of the prism film, the inclination angle of the lower surface of the prism is larger, the incident light angle is greatly reduced, the light is concentrated and irradiated on the dark zone area of the lower surface of the diffusion plate after being emitted from the lower surface of the prism film, and is uniformly emitted to the upper surface of the diffusion plate after being further homogenized by the diffusion coating 32 on the lower surface of the diffusion plate, thereby achieving the effect of light and dark zone compensation.

To sum up: the light reflected by the end surface can be concentrated and reflected back into the diffusion coating 32 at the dark zone through the reflecting strip 4+ prism film composite layer attached to the end surface of the glass diffusion plate, so that the light intensity of the dark zone area is improved. Through the structure that the prism apex angle of the prism layer 5 gradually decreases from the light incident surface to the light emergent surface, the smaller the prism apex angle is, the prism structure plays a role in directional light collection, the more obvious the light collection effect is, the further and even dispersion of the compensated light is achieved, and the brightness and picture effect of the dark zone are improved.

The components selected in the utility model are all universal standard components or components known to the person skilled in the art, and the structure and principle of the components are all known to the person skilled in the art through technical manuals or through routine experimental methods.

In the description of embodiments of the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.

Claims (5)

1. A direct type glass diffusion plate with enhanced brightness by an edge dark band, comprising:

the LED lamp panel (1) and a support frame (2) arranged on the side edge of the LED lamp panel (1), wherein the support frame (2) supports a glass substrate (3), the glass substrate (3) and the LED lamp panel (1) are oppositely arranged, an optical film (31) is arranged at one side, far away from the LED lamp panel (1), of the glass substrate (3), and a diffusion coating (32) is arranged at one side, facing the LED lamp panel (1), of the glass substrate (3);

the four end faces of the glass substrate (3) are respectively provided with a reflecting strip (4), and a prism layer (5) is arranged in the reflecting strips (4) so as to reflect light rays emitted from the end faces of the glass substrate (3) into the diffusion coating (32).

2. The direct type glass diffusion plate with enhanced brightness by an edge dark band according to claim 1,

the prism layer (5) is provided with a plurality of continuous pointed bulges (51) on the inward side, and the angle of the pointed bulges (51) at the top angle of the upper part is gradually reduced from the light incident surface of the glass substrate (3) to the light emergent surface of the glass substrate (3).

3. The direct type glass diffusion plate with enhanced brightness by an edge dark band according to claim 2,

the prism layer (5) is attached to the glass substrate (3) through a first double-sided adhesive layer (6).

4. A direct type glass diffusion plate with enhanced brightness by an edge dark band according to claim 3,

a second double-sided adhesive layer (7) is arranged between the supporting frame (2) and the glass substrate (3).

5. The direct type glass diffusion plate with enhanced brightness by an edge dark band according to claim 4,

the thicknesses of the prism layer (5), the reflecting layer and the first double-sided adhesive layer (6) are 0.3mm.