CN200972511Y - Improved structure of light guide plate - Google Patents

Abstract

The utility model discloses an improved structure of a light guide plate, which mainly includes: a light guide plate, which is made of a highly light-transmitting material, and a clear light-transmitting layer is arranged in front of the light guide plate; a reflective layer is formed integrally on the back of the light guide plate, and the reflective layer can be provided with a plurality of reflective light baffles. The reflective baffles are arranged at intervals and protrude into the light-transmitting layer of the light guide plate; thereby, an ultra-thin lighting lamp can be formed in conjunction with a side-lighting light source, so that the projected light is uniform and bright, and the refraction angle can be increased to improve the effective lighting range.

Description

Improved structure of light guide plate

Technical field:

The utility model relates to an innovation on a light guide plate, in particular to a light-transmitting layer provided on the front, and a reflective layer integrally formed on the back, which can be combined with a side light source to form an ultra-thin lighting lamp, so that the projected light The light is uniform and bright, and the refraction angle can be increased to improve the effective lighting range of the improved structure of the light guide plate.

Background technique:

Since Edison invented the electric light, the night can be as brightly lit as the day, which has greatly changed the daily life of human beings. Various lighting equipment have also been continuously introduced. tend to be perfect.

However, no matter how the lamps are changed, either bulbs or tubes are used inside, so there are still problems of power consumption and heat generation, which will not only affect the service life of the lamps, but also easily lead to an increase in the ambient temperature, especially at home. Commonly used fluorescent lamps have the disadvantage of oscillating and flickering causing eye damage.

The life of the LED in the new generation of light-emitting components is at least 10 years longer than the current lighting system, and the power consumption is lower. In addition, the LED does not contain mercury and is harmless to the environment. In the future, it will replace the lamp tube and become the best lighting source. However, the unidirectional range of its luminescence is limited, which is an urgent problem to be overcome.

The most common way is to aggregate multiple chips with multi-angle distribution, but this will increase the cost, making it difficult for consumers to accept high-cost products. The other way is to use the backlight module to achieve it. A reflective film is added to the back of the light-transmitting plate, so that the LED can be illuminated from the side through the reflective refraction and illuminated from the front of the light-transmitting plate. When it is integrally formed, there will be a gap at the joint position. When the light enters from the side, it must first pass through the light guide plate and touch the reflective film, and then penetrate the light guide plate after reflection before it can be emitted forward. That is to say, there will be loss, and the anti-gathering will become a stagnant strong light on the binding gap, and it will not be able to really play its role.

Utility model content:

The technical problem to be solved by the utility model is to provide an improved structure of a light guide plate for use with high-brightness LEDs, so that the manufactured lamps can not only produce sufficient brightness, but also have a stable light source. It will flicker, and it has the advantages of power saving and no heat.

In order to solve the above-mentioned technical problems, the technical solution adopted by the utility model is: an improved structure of a light guide plate, which mainly includes a light guide plate made of a high light-transmitting material, and its characteristic is: the front of the light guide plate A clear light-transmitting layer is provided, and a reflection layer is provided on the back thereof, and the reflection layer and the light-transmitting layer are integrally formed.

Grooves for placing light sources are arranged on both sides of the light guide sheet.

The reflective layer is provided with several reflective light baffles, which protrude into the light-transmitting layer of the light-guiding plate at intervals. One of the reflective light baffles is longer, vertically located in the middle of the light-transmitting layer, and its height does not exceed 3/4 of the thickness of the layer; the rest of the reflective light baffles are shorter and inclined inward Located on the near side of the light-transmitting layer. The surface of the light guide sheet is additionally provided with circular protruding dots.

The middle of the reflective layer of the light guide sheet is provided with an arc-shaped convex portion inwardly.

Compared with the prior art, the utility model has the advantages that: by setting several reflective light baffles on the reflective layer, the spaced distribution protrudes into the light-transmitting layer of the light guide sheet; The ultra-thin lighting makes the projected light uniform and bright, and the refraction angle can be increased to improve the effective lighting range; an arc-shaped convex part can also be set in the middle of the reflective layer, so that it can reflect light from multiple angles , the same can also achieve the practical effect of increasing the refraction angle to improve the effective lighting range; in addition, the two sides of the light guide sheet can be preset with grooves, which is convenient for subsequent applications to make the side light source close to each other. , so that the light can achieve the best effect.

Description of drawings:

FIG. 1 is an exploded perspective view of a known light guide plate.

Fig. 2 is a perspective view of the utility model.

Fig. 3 is the application plane view of the utility model.

Fig. 4 is a schematic view of adding a reflective light blocking sheet on the reflective layer of the present invention.

Fig. 4a is an enlarged view of A in Fig. 4 .

Fig. 5 is a perspective view of the utility model provided with a reflective light blocking sheet at the front.

FIG. 6 is an application plan view of FIG. 5 .

Fig. 7 is a three-dimensional exploded view of the utility model during manufacture and implementation.

Fig. 8 is a plan view of the utility model with a convex part in the middle.

Fig. 9 is a plan view of grooves on both sides of the utility model.

Label description:

1 Light guide sheet 11 Light-transmitting layer

12 Reflective layer 13 Reflective light baffle

14 reflective light baffle 15 dots

16 Convex portion 17 Groove

2 light source

Detailed ways:

In order to achieve the above-mentioned purpose, the present invention is an improved structure of a light guide plate, which mainly includes: a light guide plate made of high light transmission material, a clear light transmission layer is provided in the front; A reflective layer is provided. During implementation, the reflective layer can also be provided with several reflective light barriers, which protrude into the light-transmitting layer of the light guide sheet at intervals; thereby, an ultra-thin lighting lamp can be formed with a side light source, so that The projected light is uniform and bright, and the refraction angle can be increased to improve the effective lighting range.

The composition content and other features of the present utility model will become clearer after reading the detailed description of the following embodiments with accompanying drawings.

As shown in Figures 2-9, the utility model is an improved structure of a light guide plate, which mainly includes:

A light guide sheet 1 is made of high light-transmitting material, a clear light-transmitting layer 11 is provided on the front, and a reflective layer 12 is integrally formed on the back.

Thereby, when the light-transmitting layer 11 and the reflective layer 12 formed integrally are used together with the side light source 2 to form an ultra-thin lighting lamp, when the light enters from the side, it can touch the reflective layer without going in and out of the light guide sheet 1 12. There is no longer a gap in the middle where the light stays to cause loss, and the light can be directly reflected and emitted from the front light-transmitting layer 11, so as to truly exert its effectiveness.

Please refer to shown in Figures 4 to 6, during implementation, in order to strengthen the luminous effect its surface can be provided with round protruding dots 15, as shown in Figure 4a, and its reflective layer 12 can also be provided with several reflective light baffles 13 and 14, spaced apart The distribution protrudes into the light-transmitting layer 11 of the light guide sheet 1, wherein the reflective light blocking sheet 13 is relatively long, and is vertically located in the middle of the light-transmitting layer 11, and its height should not exceed 3/4 of the thickness of the layer. and the reflective light baffles 14 on both sides are relatively short, and are located on the near side of the light-transmitting layer 11 in a shape inclined to the middle.

In this way, when it is combined with the side light source 2 to form an ultra-thin lighting lamp, when the light is irradiated from the side, it can touch the reflective light shields 13 and 14 to strengthen the forward refraction, so that the projected light is not only uniform and bright , and can increase the refraction angle to improve the effective lighting range.

During manufacture, see also shown in Fig. 7, also can only be provided with light-transmitting layer 11 on light guide sheet 1, and then distribute and be provided with aforementioned reflective light shielding sheet 13 and 14 inside, like this, when using again behind Covering with the reflective layer 12 can also achieve the practical effect of increasing the refraction angle to improve the effective lighting range.

Please refer to Figure 8. During implementation, an arc-shaped convex portion 16 can also be provided in the middle of the reflective layer 12 of the light guide sheet 1, so that it can reflect light at multiple angles, and the same can also increase the refraction angle, so that A practical effect that improves the effective lighting range.

In addition, please refer to Fig. 9, where the two sides of the light guide sheet 1 can be preset with grooves 17 for placing the light source, so as to facilitate the subsequent application and make the side light source 2 close to each other, so as to achieve the best light emission. Effect.

To sum up, the effective structure of the utility model can indeed break the traditional thinking, directly reflect the light forward with a brand-new structure, improve the effective lighting range, and the function is far better than the conventional one, which is progressive and has industrial application value. Patent application for new models.

Claims (6)

1, a kind of light guide plate structure-improved, it mainly comprises one by the made light guide sheet of high light-transmitting materials, it is characterized in that: described light guide sheet the place ahead is provided with a clear thorough photic zone, and its back side is provided with a reflection horizon, and this reflection horizon and photic zone are one-body molded.

2, light guide plate structure-improved according to claim 1 is characterized in that: described light guide sheet both sides are provided with the groove of placing light source.

3, light guide plate structure-improved according to claim 1 and 2 is characterized in that: described reflection horizon is provided with several reflected light catch, in the photic zone that projects into this light guide sheet spaced apart.

4, light guide plate structure-improved according to claim 3 is characterized in that: a described reflected light catch wherein is longer, is the vertical configuration position and is located at euphotic centre, and it highly is no more than 3/4 of this layer thickness; Remaining reflected light catch is shorter, is to the medium dip shape to be positioned on the photic zone near side (ns) position.

5, light guide plate structure-improved according to claim 3 is characterized in that: described light guide sheet surface has additional the prominent shape site of circle.

6, light guide plate structure-improved according to claim 1 and 2 is characterized in that: the convex part that inwardly is provided with arc in the middle of the reflection horizon of described light guide sheet.

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