CN104373900A - Light guide plate lighting device - Google Patents

Abstract

A light guide plate lighting device comprises a light transmission body, two sides of which are respectively provided with a first light guide module and a second light guide module; at least one light-emitting unit arranged on the side surface of the light-transmitting body; a reflection bottom plate arranged on one side of each second light guide module; a plurality of reflecting side plates respectively arranged on other side surfaces of the light-transmitting body; and a plurality of package plates respectively arranged on one surface of the light-emitting unit and one surface of each reflecting side plate. Therefore, when the light emitting unit emits light, the first light guide module, the second light guide module, the reflection bottom plate and the reflection side plate are matched to effectively control the light emitting direction of the light source, so that the light emitting source achieves the effects of orthotropism and better uniformity.

Description

Light guide plate lighting device

technical field

The invention relates to a lighting device for a light guide plate.

Background technique

The light guide plate is the medium for light source transmission, which has the advantages of reducing cost and size. Generally, the main purpose is to improve luminance, luminous uniformity, and luminous efficiency; however, light guide plates are most commonly used in backlight modules at this stage, followed by lighting , and the most common design is to convert the line light source into a surface light source with a light guide plate, which is currently widely used in computer screens, mobile phones, lighting and other industries, and is an indispensable medium for light source transmission.

At present, most of the design and research of the light guide plate at home and abroad still focus on the design of the light guide plate of the display backlight module, not specifically designed for the angle of the outgoing light, but with the dot light guide microstructure to improve the luminance or uniformity Design for the goal, and finally add a diffuser plate and a prism sheet to improve the brightness of the front viewing angle and adjust the direction of the angle of the outgoing light; although the prism sheet can successfully increase the brightness and control most of the outgoing light at The viewing angle range of ±35°, but because many key technologies are in the hands of specific companies, the cost of the backlight module increases, so many studies are devoted to reducing the high-efficiency light guide plate of the optical film, such as light-scattering polymer (HSOT) is the material of the light guide plate, and a light guide plate that can highly control the directness and scattering of light is designed. Although this method can avoid the use of optical films, the material is special and the light angle is not easy to design; and in order to achieve the same effect, There are also related companies that combine the functions of the light guide plate, reflector, and brightness enhancement film of the traditional backlight module to design a composite light guide plate made of two materials of the same material, with a triangular structure coated with a reflective film to adjust the angle of the light output surface. and brightness, but it is different from the traditional method of direct injection molding of polymethylmethacrylate (PMMA), which not only increases the difficulty of processing, but also has the problem of energy consumption when the reflective film is coated on the light guide structure. .

In view of this, the inventor of this case made an in-depth discussion on the problems of the aforementioned inventions, and actively sought solutions through years of experience in R&D and manufacturing in related industries. After long-term hard research and development, he finally successfully developed this product. Invention, in order to improve various problems that have been used.

Contents of the invention

The main purpose of the present invention is to provide a lighting device for a light guide plate that can effectively control the light emitting direction of a light source so that the light emitting light can achieve directivity and better uniformity.

In order to achieve the above purpose, a light guide plate lighting device of the present invention includes:

A light-transmitting body, one side of which is provided with a first light-guiding module, and the other side of the light-transmitting body is provided with a plurality of second light-guiding modules;

At least one light-emitting unit is arranged on one side of the light-transmitting body;

A reflective bottom plate is arranged on one side of each second light guide module;

A plurality of reflective side panels are respectively arranged on other sides of the light-transmitting body; and

Most of the packaging boards are respectively arranged on one side of the light-emitting unit and each reflective side board.

In an embodiment of the present invention, the transparent body is made of polymethyl methacrylate, glass, transparent plasticized material or transparent resin.

In an embodiment of the present invention, the first light guide module includes a plurality of V-shaped light guides arranged continuously.

In an embodiment of the present invention, the apex angle of each V-shaped light guide is between 50°˜55°±20%.

In an embodiment of the present invention, the light emitting angle of each V-shaped light guide is between 10°-45°.

In an embodiment of the present invention, each second light guide module includes at least three V-shaped light guides arranged in a row.

In an embodiment of the present invention, the two base angles of each V-shaped light guide are between 45°˜55°±20%.

In an embodiment of the present invention, the density of each V-shaped light guide is between 0.6-0.95.

In an embodiment of the present invention, the light emitting unit is a light emitting diode.

Compared with the prior art, the present invention has the beneficial effects that: when the light emitting unit emits the light source, the present invention can effectively control the emission of the light source by utilizing the cooperation of the first and second light guide modules, the reflective bottom plate and the reflective side plate. Light direction, so that the outgoing light source can achieve the effect of directivity and better uniformity.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional appearance of the present invention.

Fig. 2 is a three-dimensional exploded schematic view of the present invention.

Fig. 3 is a partially enlarged schematic diagram of part A of Fig. 1 of the present invention.

Component label comparison:

Light-transmitting body 1;

The first light guide module 11;

V-shaped light guide body 111;

The second light guide module 12;

V-shaped light guide body 121;

Lighting unit 2;

Reflective base plate 3;

reflective edge plate 4;

Package board 5.

Detailed ways

Please refer to FIG. 1 , FIG. 2 and FIG. 3 , which are respectively a three-dimensional appearance schematic diagram of the present invention, a three-dimensional exploded schematic diagram of the present invention, and a partially enlarged schematic diagram of part A of FIG. 1 of the present invention. As shown in the figure: the present invention is a light guide plate lighting device, which at least includes a light-transmitting body 1, at least one light-emitting unit 2, a reflective bottom plate 3, a plurality of reflective side plates 4 and a plurality of packaging plates 5.

The light-transmitting body 1 mentioned above can be made of polymethyl methacrylate, glass, transparent plasticized material or transparent resin, and a first light-guiding module 11 is arranged on one side thereof, while the other side of the light-transmitting body 1 There are a plurality of second light guide modules 12 on the top, and the first light guide module 11 includes a plurality of V-shaped light guides 111 arranged continuously, wherein the apex angles of the V-shaped light guides 111 set on the first light guide module 11 are between between 50°～55°±20%, and the light emitting angle of each V-shaped light guide body 111 of the first light guide module 11 is between 10°～45°, and each second light guide module 12 is respectively It includes at least three V-shaped light guides 121 arranged in a row, and the two base angles of each V-shaped light guide 121 provided in each second light guide module 12 are between 45°-55°±20%, and in addition , the density of each V-shaped light guide body 121 provided in each second light guide module 12 is between 0.6˜0.95.

The light-emitting unit 2 is disposed on one side of the light-transmitting body 1 , and the light-emitting unit 2 can be a light-emitting diode (LED).

The reflective bottom plate 3 is disposed on one side of each second light guide module 12 .

Each reflective side plate 4 is respectively disposed on other side surfaces of the light-transmitting body 1 .

Each packaging board 5 is respectively disposed on one side of the light emitting unit 2 and each reflective edge board 3 .

When the present invention is in use, it can be installed on the ceiling or wall as an indoor (or outdoor) lighting device, and when the light emitting unit 2 emits the required light source, it can be reflected by the first and second light guide modules 11 and 12. The cooperation of the base plate 3 and the reflective side plate 4 allows the light source to emit light from the first light guide module 11 at an angle between 10° and 45°, thereby effectively controlling the direction of the emitted light of the light source so that the emitted light source reaches a positive direction. performance and better uniformity.

To sum up, the light guide plate lighting device of the present invention can effectively improve the various shortcomings of the existing ones, and can effectively control the light source by utilizing the cooperation of the first and second light guide modules, the reflective bottom plate and the reflective side plate when the light emitting unit emits light. The direction of the emitted light, so that the outgoing light source can achieve the effect of directness and better uniformity; and then the production of the present invention can be more advanced, more practical, and more in line with the needs of consumers, and it has indeed met the requirements for invention patent applications. ｄ File a patent application in accordance with the law.

The above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention; therefore, all simple equivalent changes and modifications made according to the claims of the present invention and the contents of the description of the invention should be Still belong to the scope that the patent of the present invention covers.

Claims (9)

1. a light guide plate lighting device, is characterized in that including:

One transparent body, its one side is provided with the first light guide module, and the another side of this transparent body is provided with most second light guide module;

At least one luminescence unit, is located on a side of transparent body;

One reflected bottom plate, is located in the one side of each second light guide module;

Most reflection side plate, is located on other each side of transparent body respectively; And

Most package board, is located in the one side of luminescence unit and each reflection side plate respectively.

2. light guide plate lighting device according to claim 1, is characterized in that, the material of this transparent body is polymethyl methacrylate, glass, transparent plasticized material or transparent resin.

3. light guide plate lighting device according to claim 1, is characterized in that, this first light guide module comprises the V-type light conductor of most continuous arrangement.

4. light guide plate lighting device according to claim 2, is characterized in that, the drift angle of each V-type light conductor is between 50 ° ~ 55 ° ± 20%.

5. light guide plate lighting device according to claim 2, is characterized in that, the rising angle of each V-type light conductor is between 10 ° ~ 45 °.

6. light guide plate lighting device according to claim 1, is characterized in that, each second light guide module includes at least three continuously arranged V-type light conductors respectively.

7. light guide plate lighting device according to claim 6, is characterized in that, two base angles of each V-type light conductor are between 45 ° ~ 55 ° ± 20%.

8. light guide plate lighting device according to claim 6, is characterized in that, the density of each V-type light conductor is between 0.6 ~ 0.95.

9. light guide plate lighting device according to claim 1, is characterized in that, this luminescence unit is light emitting diode.