阅读说明：本技术 一种含入光孔结构的导光板 (Light guide plate with light inlet hole structure ) 是由 杨涛 朱其 范姜士衡 于 2021-01-22 设计创作，主要内容包括：本发明公开了一种含入光孔结构的导光板,包括：导光板主体；导光板主体的至少一个侧边为入光面；入光面上开设有多个入光孔；入光孔用于容纳LED灯珠；导光板主体表面具有多个导光凸点。本发明LED灯珠发出的光源通过入光孔和导光凸点进行发散,能够显著条画质均匀性,并减少LED灯珠个数,降低成本。(The invention discloses a light guide plate containing a light inlet hole structure, which comprises: a light guide plate main body; at least one side edge of the light guide plate main body is a light incident surface; the light incident surface is provided with a plurality of light incident holes; the light inlet hole is used for accommodating the LED lamp beads; the surface of the light guide plate main body is provided with a plurality of light guide salient points. The light source emitted by the LED lamp beads is diffused through the light inlet holes and the light guide salient points, so that the uniformity of the image quality of the LED lamp beads can be improved, the number of the LED lamp beads is reduced, and the cost is reduced.)

1. A light guide plate including a light entrance aperture structure, comprising: a light guide plate body (1); at least one side edge of the light guide plate main body (1) is a light incident surface; the light incident surface is provided with a plurality of light incident holes (2); the light inlet hole (2) is used for accommodating an LED lamp bead; the surface of the light guide plate main body (1) is provided with a plurality of light guide salient points (3).

2. The light guide plate with the light inlet hole structure as claimed in claim 1, wherein the material of the light guide plate body (1) is glass or optical grade acrylic.

3. A light guide plate with a light inlet structure as claimed in claim 1, wherein the light inlet (2) is an ellipsoidal hole.

4. The light guide plate with the light inlet hole structure as claimed in claim 1, wherein the inner wall of the light inlet hole (2) is circumferentially provided with a plurality of corrugated circular structures (4).

5. A light guide plate comprising a light entrance hole structure according to claim 4, wherein the corrugated circular structures (4) are recessed in the inner wall of the light entrance hole (2).

6. A light guide plate comprising a light entrance hole structure according to claim 1, wherein the light guide protrusions (3) are spherical structures having a diameter of 0.1mm to 0.5 mm.

7. A light guide plate with a light entrance hole structure as claimed in claim 1, wherein the light guide protrusions (3) are integrally formed with the light guide plate body (1).

8. The light guide plate with the light entrance hole structure as claimed in claim 1, wherein the thickness of the light guide plate body (1) is greater than or equal to 2 mm.

9. A light guide plate comprising a light entrance hole structure according to claim 1, wherein the diameter of the light entrance hole (2) is less than or equal to 4/5 of the thickness of the light guide plate body (1).

10. The light guide plate with light entrance hole structure as claimed in claim 1, further comprising a reflective paper; the reflective paper is matched with the light guide plate main body (1) in shape and attached to one end, away from the light guide plate main body (1), of the light guide salient point (3).

Technical Field

The invention relates to the technical field of displays, in particular to a light guide plate with a light inlet hole structure.

Background

Currently, the mainstream application types of LEDs as the backlight of the display device are side-type backlight and direct-type backlight. The direct type backlight source is a mode of matching an LED light bar with an optical lens, and has the advantages of more uniform image quality, relatively higher cost and incapability of being designed to be light and thin due to the fact that LED light particles need to be distributed on the whole display screen. The lateral backlight source is a mode that an LED light bar is matched with a light guide plate, and the lateral backlight source has the advantages that the LED light bar is arranged on the lateral surface of the display screen, so that the overall thickness of the screen is reduced, and a display device is thinner; the disadvantage is poor image uniformity.

Therefore, it is an urgent need to solve the problem of providing a light guide plate with a light entrance hole structure that is low in cost and uniform in image quality.

Disclosure of Invention

In view of this, the present invention provides a light guide plate with a light inlet structure, where light sources emitted by LED lamp beads are diffused through the light inlet and the light guide bumps, so as to improve uniformity of image quality, reduce the number of LED lamp beads, and reduce cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

a light guide plate comprising a light entry aperture structure, comprising: a light guide plate main body; at least one side edge of the light guide plate main body is a light incident surface; the light incident surface is provided with a plurality of light incident holes; the light inlet hole is used for accommodating the LED lamp bead; the surface of the light guide plate main body is provided with a plurality of light guide salient points.

Preferably, in the light guide plate with the light entrance hole structure, the material of the light guide plate body is glass or optical acrylic.

Preferably, in the above light guide plate with a light inlet hole structure, the light inlet hole is an ellipsoidal hole.

Preferably, in the above light guide plate with a light inlet hole structure, a plurality of corrugated circle structures are circumferentially arranged on an inner wall of the light inlet hole.

Preferably, in the above light guide plate with a light incident hole structure, the corrugated circle structure is recessed in the inner wall of the light incident hole.

Preferably, in the above light guide plate with a light entrance hole structure, the light guide protrusions are spherical structures, and have a diameter of 0.1mm to 0.5 mm.

Preferably, in the light guide plate with the light entrance hole structure, the light guide protrusions and the light guide plate body are of an integral structure.

Preferably, in the light guide plate with the light entrance hole structure, the thickness of the light guide plate main body is greater than or equal to 2 mm.

Preferably, in the light guide plate with the light entrance hole structure, the diameter of the light entrance hole is not more than 4/5 of the thickness of the light guide plate body.

Preferably, the light guide plate with the light entrance hole structure further comprises a reflective paper; the reflection paper is matched with the shape of the light guide plate main body and attached to one end, far away from the light guide plate main body, of the light guide salient point.

According to the technical scheme, compared with the prior art, the light guide plate with the light inlet hole structure can replace a low-power LED lamp bead with a high-power LED lamp bead in the application of the backlight module, the LED lamp bead is installed in the light inlet hole, a light source emitted by the LED lamp bead is diffused to the light guide convex points through the light inlet hole, light is diffused and conducted to all angles through the spherical surfaces of the light guide convex points and is reflected by the reflecting paper, and finally a uniform light source is formed, so that the uniformity of the image quality of a display panel is ensured, the installation number of the LED lamp beads can be greatly reduced, the cost is saved, and a display device is lighter and thinner.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic diagram illustrating a top view of a light guide plate with an entrance aperture structure according to the present invention;

FIG. 2 is a schematic structural diagram of a light guide plate with a light entrance hole structure according to the present invention;

fig. 3 is a schematic structural diagram of a light incident hole provided in the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, an embodiment of the present invention discloses a light guide plate including a light entrance hole structure, including: a light guide plate body 1; at least one side edge of the light guide plate main body 1 is a light incident surface; the light incident surface is provided with a plurality of light incident holes 2; the light inlet hole 2 is used for accommodating an LED lamp bead; the surface of the light guide plate body 1 is provided with a plurality of light guide salient points 3.

The light guide plate main body 1 is made of glass or optical acrylic, the thickness T of the light guide plate main body is more than or equal to 2mm, and the diameter phi of the light inlet hole 2 is less than or equal to T × 4/5 according to the application light source design.

In a preferred embodiment, the light inlet 2 is an ellipsoidal hole, and the inner wall of the light inlet 2 is circumferentially provided with a plurality of corrugated circular structures 4, and the corrugated circular structures 4 are recessed in the inner wall of the light inlet 2. The corrugated circle structure 4 enables the point light source to form a plurality of refraction angles, and ensures that the point light source is better diffused to the light guide salient point 3.

In another embodiment, the light guide bumps 3 are spherical structures with a diameter of 0.1mm to 0.5 mm. The light guide salient points 3 and the light guide plate body 1 are of an integrated structure. Or the light guide salient points 3 are formed by adopting a printing mode. The light guide salient points 3 and the light guide plate main body 1 can be integrally injection-molded through an injection mold, so that the whole structure is smoother.

In other embodiments, reflective paper is also included; the reflective paper is matched with the shape of the light guide plate body 1 and is attached to one end, far away from the light guide plate body 1, of the light guide salient point 3.

Light that LED lamp pearl sent is through going into the refraction of unthreaded hole 2 and with its conduction to leaded light bump 3, light to individual angle diffusion through the sphere of leaded light bump 3, through various density, leaded light bump 2 with different sizes with light diffusion, conduction to reflect out even white light by reflection paper, and then realize even picture quality, improve the viewing effect.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.