CN220252350U

CN220252350U - Structure for uniformly emitting light of frame type light guide plate with incident light at corner

Info

Publication number: CN220252350U
Application number: CN202322046519.0U
Authority: CN
Inventors: 李飞; 陈雪莲; 刘昌芬; 林金锡; 林金汉
Original assignee: Changzhou Almaden Co Ltd
Current assignee: Changzhou Almaden Co Ltd
Priority date: 2023-07-31
Filing date: 2023-07-31
Publication date: 2023-12-26
Anticipated expiration: 2033-07-31

Abstract

The utility model belongs to the technical field of light guide plates, and particularly relates to a frame type light guide plate uniform light-emitting structure with incident light at corners, which comprises the following components: the liquid crystal display comprises a liquid crystal screen and a light guide plate arranged on the liquid crystal screen; both sides of the light guide plate are provided with light-emitting components; the light emitting assembly comprises an upper LED light bar, a middle LED light bar and a lower LED light bar. The upper LED lamp strip, the middle LED lamp strip and the lower LED lamp strip are all clung to the light guide plate. The lower part of the light guide plate is provided with a bottom LED lamp strip. The frame type light guide plate with the corner light entering function has the advantages that the side light entering type LED light bars are disassembled into the single or a plurality of LED light beads arranged in a plurality of different areas, the partial light supplementing is carried out on the position with less partial light of the special-shaped structure light guide plate, and the effect of uniform light emitting of the whole surface of the special-shaped light guide plate is achieved.

Description

Structure for uniformly emitting light of frame type light guide plate with incident light at corner

Technical Field

The utility model belongs to the technical field of light guide plates, and particularly relates to a frame type light guide plate with incident light at corners for uniformly emitting light.

Background

In being arranged in outdoor display or luminous show plate product, for promoting individuation or pleasing to the eye degree, often need special-shaped design, the display product of collocation special-shaped design, if adopt straight following formula in a poor light, need carry out the arrangement of LED lamp pearl according to the design demand, straight following formula in a poor light collocation special-shaped display product is the mode that realizes relatively easily.

In the prior art, the direct type backlight is matched with the special-shaped display product to have the defect of thicker backlight thickness, and when the special-shaped display product is matched with the side-in type backlight source, the design difficulty of realizing uniform light emission of the light-equalizing component light guide plate is increased, such as the shape, the size, the brightness requirement, the light incidence position of the LED lamp beads and other multiple factors are comprehensively influenced, the brightness and the in-plane brightness uniformity are possibly poor, so that a plurality of special-shaped display products mostly adopt a splicing structure, the special-shaped screen is split into a plurality of spliced screens with relative shapes and specifications, the side-in type backlight design is simplified, meanwhile, the ultrathin effect is achieved, but the brightness of the split special-shaped screen at the corner is smaller, and the whole surface of the special-shaped light guide plate emits light unevenly.

Disclosure of Invention

The utility model aims to provide a frame type light guide plate uniform light-emitting structure with light entering at corners, which solves the technical problem that the split special-shaped screen has smaller brightness at corners and the whole surface of the special-shaped light guide plate is nonuniform in light emission, and achieves the aim of uniformly light-emitting the whole surface of the special-shaped light guide plate by disassembling side-entering LED (light-emitting diode) light bars into single or several LED light beads arranged in a plurality of different areas and carrying out partial light supplement on the position with less local light of the special-shaped structure light guide plate.

In order to solve the above technical problems, the present utility model provides a frame-type light guide plate with incident light at a corner, which comprises:

the liquid crystal display comprises a liquid crystal screen and a light guide plate arranged on the liquid crystal screen;

both sides of the light guide plate are provided with light-emitting components;

the light emitting assembly comprises an upper LED light bar, a middle LED light bar and a lower LED light bar.

Further, the upper LED light bar, the middle LED light bar and the lower LED light bar are all clung to the light guide plate.

Further, the lower part of the light guide plate is provided with a bottom LED light bar.

Further, the lengths of the upper LED light bar, the middle LED light bar, the lower LED light bar and the bottom LED light bar are 20 millimeters.

The beneficial effects of the utility model are as follows:

1. the side-in type LED lamp strip is disassembled into a plurality of single or a plurality of LED lamp beads arranged in different areas, and the partial light supplementing is carried out at the position with less partial light of the special-shaped structure light guide plate, so that the effect of uniform light emitting of the whole surface of the special-shaped light guide plate is realized.

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 structural view of a frame-type light guide plate with incident light at the corners of the present utility model, which emits light uniformly.

In the figure:

1. a liquid crystal panel;

2. a light guide plate;

3. a light emitting assembly; 31. an upper LED light bar; 32. a middle LED light bar; 33. a lower LED light bar;

4. and a bottom LED light bar.

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, a frame-type light guide plate 2 with incident light at the corners uniformly emits light, includes: a liquid crystal screen 1 and a light guide plate 2 arranged on the liquid crystal screen 1; both sides of the light guide plate 2 are provided with light emitting components 3; the lighting assembly 3 comprises an upper LED light bar 31, a middle LED light bar 32 and a lower LED light bar 33. The LED lamp beads in the upper, middle and lower different areas are used for carrying out local light supplementing on the position with less local light of the special-shaped structure light guide plate 2, so that the effect of uniform light emitting of the whole surface of the special-shaped light guide plate 2 is realized.

Meanwhile, the LED lamp strips are arranged separately, so that materials can be saved, the light supplementing adjustment can be carried out in a dark area of the special-shaped light guide plate 2, and the luminous effect of the special-shaped light guide plate 2 is improved.

In this embodiment, the upper LED light bar 31, the middle LED light bar 32 and the lower LED light bar 33 are all tightly attached to the light guide plate 2, so that light is better irradiated into the light guide plate 2, and uniformity of light supplementing is improved.

As shown in fig. 1, the bottom LED light bar 4 is disposed at the lower portion of the light guide plate 2, so that light can be supplemented to the bottom of the special shape at the lower portion, and the overall light supplementing effect is improved.

In the present embodiment, the lengths of the upper LED light bar 31, the middle LED light bar 32, the lower LED light bar 33, and the bottom LED light bar 4 are 20 mm.

To sum up: the side-in type LED lamp strip is disassembled into a plurality of single or a plurality of LED lamp beads arranged in different areas, and the partial light supplementing is carried out on the position with less partial light of the special-shaped structure light guide plate 2, so that the effect of uniform light emitting of the whole surface of the special-shaped light guide plate 2 is realized.

The components selected in the application are all general standard components or components known to the person skilled in the art, and the structures and principles 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

1. A frame type light guide plate (2) which is capable of uniformly emitting light from a corner, characterized by comprising:

the liquid crystal display comprises a liquid crystal screen (1) and a light guide plate (2) arranged on the liquid crystal screen (1);

both sides of the light guide plate (2) are provided with light-emitting components (3);

the light emitting assembly (3) comprises an upper LED light bar (31), a middle LED light bar (32) and a lower LED light bar (33).

2. The frame-type light guide plate (2) with incident light at the corners as claimed in claim 1, wherein,

the upper LED lamp strip (31), the middle LED lamp strip (32) and the lower LED lamp strip (33) are tightly attached to the light guide plate (2).

3. The frame-type light guide plate (2) with incident light at the corners as claimed in claim 2, wherein,

the lower part of the light guide plate (2) is provided with a bottom LED lamp strip (4).

4. A frame-type light guide plate (2) with incident light at the corners as set forth in claim 3, wherein,

the lengths of the upper LED lamp strip (31), the middle LED lamp strip (32), the lower LED lamp strip (33) and the bottom LED lamp strip (4) are 20 millimeters.