CN218272773U

CN218272773U - Compound curved surface light guide plate

Info

Publication number: CN218272773U
Application number: CN202222216979.9U
Authority: CN
Inventors: 卢嘉敏
Original assignee: Dongguan Kangde Photoelectric Technology Co ltd
Current assignee: Dongguan Kangde Photoelectric Technology Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2023-01-10
Anticipated expiration: 2032-08-23

Abstract

The application provides a pair of compound curved surface light guide plate, including light guide plate and reflectance coating, the top surface of reflectance coating laminates with the bottom surface of light guide plate mutually, the light guide plate includes first oblique portion, the oblique portion of second and first transition portion, first oblique portion is located the left end of first transition portion, the oblique portion of second is located the right-hand member of first transition portion, first oblique portion is the light source entry with the oblique portion of second. The first inclined part and the second inclined part of the light guide plate are light source inlets, diffuse reflection is carried out on the light guide plate and the reflecting film through the light guide point after the light source is taken in so as to realize light guide, and the light guide plate is efficiently applied to a curved surface environment by arranging the first inclined part and the second inclined part; the light guide points are arranged on the back of the light guide plate in a rolling mode, so that the phenomenon of poor light guide such as black shadow, watermark and the like caused by the light guide points can be effectively avoided, the composite curved surface light guide plate can be effectively applied to a curved surface environment, the light loss can be greatly reduced, and the light emitting efficiency is improved.

Description

Compound curved surface light guide plate

Technical Field

The utility model relates to a light guide plate technical field specifically is a compound curved surface light guide plate.

Background

With the development of science and technology, liquid crystal display devices have played more and more roles in human activities, such as mobile phones, televisions, PC displays, vehicle-mounted displays, medical displays and other industries. Most light guide plates in the current market are planar or linear light guide plates, and the linear light guide plates cannot be completely attached to parts with partial curved surfaces, so that the linear light guide plates can cause the phenomena of overlarge light loss, poor light guide effect, low product attachment degree and the like aiming at the parts with the curved surfaces in the using process, and the conventional light guide plates in the current market cannot meet the requirements of current production.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compound curved surface light guide plate to solve the technical problem in the background art.

In order to achieve the foregoing objective, the present application provides the following technical solutions:

the utility model provides a compound curved surface light guide plate, includes light guide plate and reflectance coating, the top surface of reflectance coating laminates with the bottom surface of light guide plate mutually, the light guide plate includes first oblique portion, the oblique portion of second and first transition portion, first oblique portion is located the left end of first transition portion, the oblique portion of second is located the right-hand member of first transition portion, first oblique portion is the light source entry with the oblique portion of second.

Further, a plurality of light guide points are uniformly distributed on the back of the light guide plate, and the light guide points are fixed on the light guide plate through roll forming.

Furthermore, the first inclined part and the second inclined part have the same structure and are symmetrically arranged at two ends of the first transition part.

Further, the thickness of the light guide plate is 0.2mm-0.5mm.

Further, the reflective film is made of a highly reflective material, and the reflective film has a waterproof property.

Further, the thickness of the reflecting film is 0.01mm-0.08mm.

Furthermore, a laminating adhesive layer is adhered to the bottom end of the reflecting film, and the laminating adhesive layer is a high-viscosity double-sided adhesive tape.

Furthermore, the adhesive layer is made of transparent materials.

Furthermore, the thickness of the adhesive layer is 0.05mm-0.13mm.

Compared with the prior art, the first inclined part and the second inclined part of the light guide plate are light source inlets, diffuse reflection is carried out on the light guide plate and the reflecting film through the light guide point after the light source is taken in so as to realize light guide, and the light guide plate is efficiently applied to a curved surface environment through the arrangement of the first inclined part and the second inclined part; the light guide points are arranged on the back of the light guide plate in a rolling mode, so that the phenomenon of poor light guide such as black shadow, watermark and the like caused by the light guide points can be effectively avoided, the composite curved surface light guide plate can be effectively applied to a curved surface environment, the light loss can be greatly reduced, and the light emitting efficiency is improved.

Drawings

FIG. 1: the structure of the application is shown schematically;

FIG. 2: a top view of the present application;

FIG. 3: a front view of the light guide plate in the present application;

FIG. 4: the light guide plate in this application is a bottom view.

Reference numerals:

1. a light guide plate; 11. a first inclined portion; 12. a second slope portion; 13 a first transition portion; 14. a light guide point;

2. a reflective film;

3. and (6) gluing the adhesive layer.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

Specific example 1: referring to fig. 1 to 4, the light guide plate includes a light guide plate 1 and a reflective film 2, a top surface of the reflective film 2 is attached to a bottom surface of the light guide plate 1, the light guide plate 1 includes a first inclined portion 11, a second inclined portion 12 and a first transition portion, the first inclined portion 11 is located at a left end of the first transition portion, the second inclined portion 12 is located at a right end of the first transition portion, the first inclined portion 11 and the second inclined portion 12 have the same structure and are symmetrically disposed at two ends of the first transition portion, the first transition portion can adjust a curvature according to an actual situation, and both the first inclined portion 11 and the second inclined portion 12 are light source inlets.

The bottom of reflectance coating 2 is stained with laminating glue film 3, and laminating glue film 3 is high stickness double faced adhesive tape, and laminating glue film 3 is made by transparent material.

The reflecting film 2 is made of a high-reflectivity material, the reflecting film 2 has waterproof performance, and the reflecting film 2 can meet the requirements of strong waterproof and high reflection of the composite light guide plate 1, and is favorable for improving the light guide effect of the composite light guide plate.

A plurality of first transition parts of light guide points 13 are uniformly distributed on the back surface of the light guide plate 1; 14, a first transition part of the light guide point 13; 14 are fixed on the light guide plate 1 by roll forming, and are connected with the traditional first transition part of the light guide point 13; 14 is arranged between the reflecting film 2 and the adhesive layer 3, and is used for providing a first transition part of the light guide point 13; 14 are arranged on the light guide plate 1, so that the phenomena of poor light guide such as black shadow, watermark and the like can be avoided, and the first transition part of the light guide point 13 can be effectively reduced by a rolling forming mode; 14, the light guide effect is not influenced, and the first transition part of the light guide point 13 cannot be seen under the visual condition of naked eyes; and (14) the aesthetic property and the practicability are improved.

The thickness of the light guide plate 1 is 0.2mm-0.5mm, the thickness of the reflection film 2 is 0.01mm-0.08mm, and the thickness of the adhesive layer 3 is 0.05mm-0.13mm. In this embodiment, the thickness of the light guide plate 1 is 0.38mm, the thickness of the reflective film 2 is 0.05mm, and the thickness of the adhesive layer 3 is 0.1mm, and by setting the thicknesses, the composite curved light guide plate 1 is not only suitable for being used in micro devices such as mobile phones. And the light guide efficiency is high, and the light guide effect is good.

Compared with the prior art, the first inclined part and the second inclined part of the light guide plate are light source inlets, diffuse reflection is carried out on the light guide plate and the reflecting film through the light guide point after the light source is taken in, so that light guide is realized, and the light guide plate is efficiently applied to a curved surface environment through the arrangement of the first inclined part and the second inclined part; the light guide points are arranged on the back of the light guide plate in a rolling mode, so that the phenomenon of poor light guide such as black shadow, watermark and the like caused by the light guide points can be effectively avoided, the composite curved surface light guide plate can be effectively applied to a curved surface environment, the light loss can be greatly reduced, and the light emitting efficiency is improved.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims

1. A compound curved surface light guide plate which characterized in that: including light guide plate and reflectance coating, the top surface of reflectance coating laminates with the bottom surface of light guide plate mutually, the light guide plate includes first oblique portion, the oblique portion of second and first transition portion, first oblique portion is located the left end of first transition portion, the oblique portion of second is located the right-hand member of first transition portion, first oblique portion is the light source entry with the oblique portion of second.

2. The light guide plate with curved surface of composite type as defined in claim 1, wherein: the back of the light guide plate is uniformly distributed with a plurality of light guide points, and the light guide points are fixed on the light guide plate through roll forming.

3. A composite curved light guide plate according to claim 1, wherein: the first oblique portion and the second oblique portion are identical in structure and symmetrically arranged at two ends of the first transition portion.

4. A composite curved light guide plate according to claim 1, wherein: the thickness of the light guide plate is 0.2mm-0.5mm.

5. The light guide plate with curved surface of composite type as defined in claim 1, wherein: the reflective film is made of a highly reflective material, and the reflective film has a waterproof property.

6. A composite curved light guide plate according to claim 1, wherein: the thickness of the reflecting film is 0.01mm-0.08mm.

7. The light guide plate with curved surface of composite type as defined in claim 1, wherein: the bottom of reflectance coating is stained with the laminating glue film, the laminating glue film is high stickness double faced adhesive tape.

8. A composite curved light guide plate according to claim 7, wherein: the adhesive layer is made of transparent materials.

9. A composite curved light guide plate according to claim 7, wherein: the thickness of the adhesive layer is 0.05mm-0.13mm.