CN219320522U - Light guide plate mesh point structure assembly - Google Patents

Abstract

The embodiment of the utility model provides a light guide plate mesh point structure component which comprises a light reflecting plate, a light guide plate and a light-transmitting cover plate which are sequentially overlapped; wherein, a luminous plate is arranged on one side surface of the light guide plate; a light outlet lattice point is arranged on one surface of the light guide plate facing the light-transmitting cover plate; a cover edge is arranged at the edge of the light-transmitting cover plate and faces the light guide plate; wherein, the light-emitting net point is positioned in the space between the cover edges. Through the reflector plate, light guide plate and printing opacity apron that coincide set up and set up in the luminescent plate of light guide plate, on the one hand can play dustproof effect through above-mentioned lid edge, keep the cleanness of site, when making the light irradiation reflector plate that above-mentioned luminescent plate sent through above-mentioned reflector plate, can reflect to the light-emitting site of light guide plate and export to the printing opacity apron, from the printing opacity apron again to pass through even light.

Description

Light guide plate mesh point structure assembly

Technical Field

The utility model relates to the technical field of light guide plates, in particular to a net point structure component of a light guide plate.

Background

The light guide plate (Light Guide Plate) is made of an optical acrylic/PC plate, and then light guide points are printed on the bottom surface of the optical acrylic plate by using laser engraving, V-shaped cross grid engraving and UV screen printing technologies by using a high-tech material with an extremely high refractive index and light absorption. The light emitted from the lamp is absorbed by the optical acrylic plate and stays on the surface of the optical acrylic plate, when the light rays are emitted to each light guide point, the reflected light can be diffused towards each angle, and then the reflection condition is destroyed and emitted from the front surface of the light guide plate. The light guide plate can uniformly emit light through various light guide points with different densities and sizes. The reflector plate is used for reflecting the light exposed from the bottom surface back to the light guide plate so as to improve the use efficiency of the light; under the condition of the same area of luminous brightness, the luminous efficiency is high, and the power consumption is low.

In life, the advertisement box and the backlight of the liquid crystal display television are both produced by combining a light source and a light guide plate, and in the prior art, ink is adsorbed on the surface of the light guide plate by ink printing, so that the service life of the light guide plate assembly is reduced under the influence of long-time use or other external factors, and the light guide effect of the light guide plate assembly is also deteriorated, and therefore, the light guide plate net point structure assembly capable of stably working for a long time is needed.

Disclosure of Invention

The present utility model has been made in view of the above problems, and it is an object of the present utility model to provide a light guide plate mesh point structure assembly which overcomes or at least partially solves the above problems.

The embodiment of the application discloses a light guide plate mesh point structure assembly, which comprises a light reflecting plate, a light guide plate and a light-transmitting cover plate which are sequentially overlapped; wherein, a luminous plate is arranged on one side surface of the light guide plate;

a light outlet lattice point is arranged on one surface of the light guide plate facing the light-transmitting cover plate; a cover edge is arranged at the edge of the light-transmitting cover plate and faces the light guide plate;

wherein, the light-emitting net point is positioned in the space between the cover edges.

Preferably, the light-emitting net point is of a Fresnel lens structure, the middle of the light-emitting net point is provided with a convex surface, and the periphery of the light-emitting net point is provided with a plurality of circles of edges.

Preferably, the cover is provided with a groove along the surface, and the edge of the light guide plate facing to one side of the light-transmitting cover plate is provided with a protrusion combined with the groove.

Preferably, the front surface of the light-emitting plate is provided with a plurality of LED lamp beads, and the back of the light-emitting plate is an aluminum plate.

Preferably, the cross section of the light guide plate has four corners connected in sequence in a trapezoid shape.

Preferably, the light emitting dots are arranged in an array on the light guide plate.

Preferably, the light-emitting net points are made of acrylic.

The utility model has the following advantages:

in the embodiment of the utility model, the reflecting plate, the light guide plate and the light-transmitting cover plate are sequentially overlapped; wherein, a luminous plate is arranged on one side surface of the light guide plate; a light outlet lattice point is arranged on one surface of the light guide plate facing the light-transmitting cover plate; a cover edge is arranged at the edge of the light-transmitting cover plate and faces the light guide plate; wherein, the light-emitting net point is positioned in the space between the cover edges. Through the reflector plate, light guide plate and printing opacity apron that coincide set up and set up in the luminescent plate of light guide plate, on the one hand can play dustproof effect through above-mentioned lid edge, keep the cleanness of site, when making the light irradiation reflector plate that above-mentioned luminescent plate sent through above-mentioned reflector plate, can reflect to the light-emitting site of light guide plate and export to the printing opacity apron, from the printing opacity apron again to pass through even light.

Drawings

In order to more clearly illustrate the technical solutions of the present utility model, the drawings that are needed in the description of the present utility model will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort to a person skilled in the art.

Fig. 1 is a schematic structural diagram of a light guide plate mesh point structure assembly according to an embodiment of the present utility model;

fig. 2 is a schematic diagram of a distribution structure of light-emitting network points in a light guide plate network point structure assembly according to an embodiment of the present utility model;

FIG. 3 is a schematic view of another embodiment of a light guide plate mesh point structure assembly according to the present utility model;

fig. 4 is a schematic structural diagram of a light-emitting dot in a light guide plate dot structure assembly according to an embodiment of the present utility model;

fig. 5 is a schematic diagram of the working condition of a light-emitting network point in a network point structure component of a light guide plate according to an embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a light guide plate in a light guide plate mesh point structure assembly according to an embodiment of the present utility model.

In the accompanying drawings: 1. a light guide plate; 2. a light reflecting plate; 3. a light-transmitting cover plate; 4. a light emitting panel; 11. a light outlet; 12. a protrusion; 31. a cover rim; 32. a groove; 111. a convex surface; 112. and (5) an edge.

Detailed Description

In order that the manner in which the above recited objects, features and advantages of the present utility model are obtained will become more readily apparent, a more particular description of the utility model briefly described above will be rendered by reference to the appended drawings. It will be apparent that the described embodiments are some, but not all, embodiments of the utility model. 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.

Referring to fig. 1 and fig. 2, there is shown a light guide plate mesh point structure assembly according to an embodiment of the present utility model, which includes a light reflecting plate 2, a light guide plate 1 and a light-transmitting cover plate 3 stacked in sequence; wherein, a side surface of the light guide plate is provided with a light-emitting plate 4; the light guide plate 1 is provided with light outlet dots 11 on one surface facing the light-transmitting cover plate 3; a cover edge 31 is arranged at the edge position of the light-transmitting cover plate 3, and the cover edge faces the light guide plate 1; wherein the light-emitting dots 11 are located in the space between the cover rims 31.

In the above embodiment, the light reflecting plate 2, the light guiding plate 1, the light transmitting cover plate 3 and the light emitting plate 4 disposed on the light guiding plate 1 are overlapped, so that the cover edge 31 can play a role in dust prevention, keep the mesh point clean, and reflect the light emitting mesh point 11 of the light guiding plate 1 to exit to the light transmitting cover plate 3 and then transmit uniform light from the light transmitting cover plate 3 when the light emitting plate 4 irradiates the light reflecting plate 2 through the light reflecting plate 2.

In an embodiment of the present application, referring to fig. 1 and fig. 4, the light-emitting dot 11 is a fresnel lens structure, wherein a convex surface 111 is provided, and a plurality of edges 112 are provided on the periphery thereof.

In the above embodiment, the light-emitting dot 11 is a fresnel lens structure, as shown in fig. 4 a, which can be equivalent to the combination of the lens and the prism shown in fig. 4 b, and after the light is incident, the light can be totally reflected by the equivalent prism structure or refracted by the equivalent lens, so that the emergent light achieves the effect of uniform parallel emergent light, as shown in fig. 5, the light-emitting dot 1 of the present application is equivalent to the fresnel lens and the prism structure, and when the light emitted from the light source irradiates the light-emitting dot 11 from any angle, the light can be emitted in the direction perpendicular to the direction of the light guide plate 1, so as to form the uniform parallel emergent light.

In an embodiment of the present application, referring to fig. 3, a groove 32 is formed on the surface of the cover edge 31, and a protrusion 13 combined with the groove 32 is formed on the edge of the light guide plate 1 facing the light-transmitting cover plate 3. The structure can be stabilized by the combination of the protrusion 13 and the groove 32.

In an embodiment of the present application, the light-emitting board 4 is provided with a plurality of LED lamp beads on the front surface, and an aluminum plate on the back surface. On the one hand, the front LED lamp beads have good energy-saving effect, and the back of the LED lamp beads can have good heat dissipation effect by using the aluminum plate.

In an embodiment of the present application, as shown in fig. 6, the cross section of the light guide plate 1 has four corners connected in sequence to form a trapezoid. The thickness of the light guide plate 1 is gradually changed, that is, one side is thicker, and the other side is thinner, so that when light irradiates from the side, the light can be better refracted to the front surface of the light guide plate 1 due to the different thicknesses of the two sides. Among them, the light emitting panel 4 of the present application is preferably provided on a thicker side.

In an embodiment of the present application, as shown in fig. 2, the light-emitting dots 11 are arranged in an array on the light guide plate 1. The light-emitting net points 11 are made of acrylic.

When the light source is turned on, the light source emits light, the light enters the light guide plate 1 and the reflecting plate 2 from the side surface of the light guide plate 1, and when the light is emitted to each lattice point, the lattice point reflects the light to enable the light to be uniformly diffused towards each angle, and the light guide plate 1 is preferably arranged into a shape that the four corner connecting lines of the cross section are trapezoid, so that the light guide plate 1 has a prism-like effect, and the light guide plate 1 guides light and efficiently utilizes the light.

In this specification, each embodiment is described in a progressive manner, and each embodiment is mainly described by differences from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.

While preferred embodiments of the present utility model have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the embodiments of the utility model.

Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article or terminal device comprising the element.

The above describes in detail a light guide plate network point structure component provided by the present utility model, and specific examples are applied herein to illustrate the principles and embodiments of the present utility model, and the above examples are only used to help understand the method and core ideas of the present utility model; meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in accordance with the ideas of the present utility model, the present description should not be construed as limiting the present utility model in view of the above.

Claims (7)

1. The light guide plate mesh point structure assembly is characterized by comprising a light reflecting plate (2), a light guide plate (1) and a light-transmitting cover plate (3) which are sequentially overlapped; wherein, a luminous plate (4) is arranged on one side surface of the light guide plate (1);

one surface of the light guide plate (1) facing the light-transmitting cover plate (3) is provided with light outlet dots (11); a cover edge (31) is arranged at the edge position of the light-transmitting cover plate (3), and the cover edge faces the light guide plate (1);

wherein the light-emitting dots (11) are located in the space between the cover edges (31).

2. The light guide plate mesh point structure assembly according to claim 1, wherein the light outlet mesh point (11) is a fresnel lens structure, a convex surface (111) is arranged at the middle part of the light outlet mesh point, and a plurality of circles of edges (112) are arranged on the periphery of the light outlet mesh point.

3. The light guide plate mesh point structure assembly according to claim 1 or 2, wherein the cover edge (31) is provided with a groove (32), and the edge of the light guide plate (1) facing the light-transmitting cover plate (3) is provided with a protrusion (12) combined with the groove (32).

4. The light guide plate mesh point structure assembly according to claim 1 or 2, wherein the light emitting plate (4) is provided with a plurality of LED lamp beads on the front surface and an aluminum plate on the back surface.

5. The light guide plate mesh point structure assembly according to claim 1, wherein the light guide plate (1) has a trapezoid cross section with four corners connected in sequence.

6. The light guide plate mesh point structure assembly according to claim 1, wherein the light outlet mesh points (11) are arranged in an array on the light guide plate (1).

7. The light guide plate mesh point structure assembly according to claim 1, wherein the light emitting mesh point (11) is made of acrylic.

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