CN217060559U

CN217060559U - High-brightness light guide plate

Info

Publication number: CN217060559U
Application number: CN202220670046.4U
Authority: CN
Inventors: 肖阳春
Original assignee: Suzhou New Cloud Ultraprecision Technology Co ltd
Current assignee: Suzhou New Cloud Ultraprecision Technology Co ltd
Priority date: 2022-03-18
Filing date: 2022-03-18
Publication date: 2022-07-26
Anticipated expiration: 2032-03-18

Abstract

The utility model discloses a high brightness light guide plate, its including go into the plain noodles, go out the plain noodles and with go out the relative plane of reflection that sets up of plain noodles, go out the plain noodles with the plane of reflection respectively with it is crossing to go into the plain noodles, it has a plurality of parallel arrangement's protruding structure, and is a plurality of protruding structure continuous arrangement, random distribution has a plurality of reflection micro-structures on the plane of reflection, reflection micro-structure certainly the plane of reflection is towards the inside indent of light guide plate entity, and is a plurality of reflection micro-structure is from being close to go into the plain noodles and keep away from go into the plain noodles grow gradually. The utility model provides a go out plain noodles and reflection surface design the surface microstructure of multiple specific shape, the diffuse reflection leaded light who designs traditional is converted into the surface reflection leaded light, with the light that LED sent, jets out light from going out the plain noodles according to the angle of design, increases widely go out the homogeneity of plain noodles light-emitting. The utilization rate of the light source is improved, and the brightness of the light emitting surface is improved.

Description

High-brightness light guide plate

Technical Field

The utility model relates to a leaded light technical field especially relates to a high brightness light guide plate.

Background

The light guide plate is a flat plate which utilizes transparent light guide materials such as poly -based methyl acrylate (PMMA) or Polycarbonate (PC) to emit light emitted by a light source into a plate, the light is diffused to the whole plate surface, after the light irradiates on microstructures on the reflecting surface of the light guide plate, the light guide plate converts the diffuse reflection light guide of the traditional design into surface reflection light guide, the light is emitted from the light emitting surface of the light guide plate, and uniform light emission is obtained through various microstructures with different densities, sizes and shapes. However, the conventional light guide plate has low light guide efficiency, so that the light source is required to be a high-brightness LED lamp, and the cost and the power consumption are high.

Therefore, a new technical solution is needed.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem that exists among the prior art, the utility model discloses a high brightness light guide plate, it including go into the plain noodles, go out the plain noodles and with the plane of reflection that goes out the relative setting of plain noodles, go out the plain noodles with the plane of reflection respectively with it is crossing to go into the plain noodles, it has a plurality of parallel arrangement's protruding structure, and is a plurality of to go out the plain noodles protruding structure continuous arrangement, random distribution has a plurality of reflection micro-structures on the plane of reflection, reflection micro-structure certainly the plane of reflection is towards the inside indent of light guide plate entity, and is a plurality of reflection micro-structure is from being close to go into the plain noodles to keeping away from go into the plain noodles grow gradually.

Furthermore, the protruding structure comprises a first protruding structure and a second protruding structure, the cross section of the first protruding structure is in a V shape or an arc shape, the cross section of the second protruding structure is in an arc shape, and the height of the second protruding structure along the length direction of the second protruding structure is larger than the height of the first protruding structure along the length direction of the second protruding structure.

Further, the reflection microstructure includes a first side structure, a second side structure, a third side structure and a fourth side structure, the first side structure is opposite to the second side structure, the third side structure is opposite to the fourth side structure, and the first side structure faces the light incident surface.

Furthermore, the first side surface structure is a plane structure, and an included angle between the first side surface structure and the reflecting surface is an acute angle.

Furthermore, the first side surface structure is formed by connecting two plane structures which form an acute angle with the included angle of the reflecting surface.

Further, the reflection microstructure further comprises a top surface structure, wherein the first side surface structure, the second side surface structure, the third side surface structure and the fourth side surface structure are respectively connected with the top surface structure in an intersecting manner, and the top surface structure is a peak-shaped structure, a spherical crown-shaped structure or a plane structure with an included angle of 0-10 degrees with the reflection surface.

Furthermore, the reflecting surface is provided with a plurality of convex small balls, and the convex small balls are distributed on the reflecting surface and the reflecting microstructure.

Compared with the prior art, the utility model discloses a high brightness light guide plate has following beneficial effect: the utility model provides a go out plain noodles and reflecting surface design the surface microstructure of multiple specific shape, lead the diffuse reflection of traditional design, convert the diffuse reflection leaded light into the surface reflection leaded light, with the light that LED sent, jet out light from going out the plain noodles according to the angle of design, and the microstructure of incident light various shapes on the reflecting surface carries out corresponding refraction for incident light is whole scattering on the reflecting surface does not have the dead angle, increases widely go out the homogeneity of plain noodles light-emitting. The utilization rate of the light source is improved, and the brightness of the light emitting surface is improved. Therefore, the quantity of the LED lamp beads can be reduced, the cost is effectively reduced, the power consumption is reduced, and the energy is saved.

Drawings

Fig. 1 is a perspective view schematically illustrating a light guide plate according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a light emitting surface in an embodiment of the present invention;

fig. 3 is a schematic view of a microstructure on a reflective surface inside a light guide plate entity according to an embodiment of the present invention;

fig. 4 is a schematic view of the reflective microstructure located inside the light guide plate in the embodiment of the present invention;

FIG. 5 is a schematic view of a structure on a reflection surface according to an embodiment of the present invention

FIG. 6 is a subjective view of FIG. 5;

fig. 7 is a schematic structural view of a reflective surface of a light guide plate according to another embodiment of the present invention.

The light source comprises a light incident surface 1, a light emergent surface 2, a reflecting surface 3, a first convex structure 21, a second convex structure 22, a reflecting microstructure 4, a first side structure 41, a second side structure 42, a third side structure 43, a fourth side structure 44, a top surface structure 45, a first reflecting sheet 5, a convex ball 6, a light source 7, a groove structure 8 and a reflecting convex 9.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or may be connected through the interior of two elements or in interactive relation with one another. The specific meaning of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Referring to fig. 1, the present invention discloses a high brightness light guide plate, which includes a light incident surface 1, a light emergent surface 2 and a reflecting surface 3 disposed opposite to the light emergent surface 2, wherein the light emergent surface 2 and the reflecting surface 3 intersect with the light incident surface 1 respectively, and this embodiment provides one or more light sources 7, and the light sources 7 are disposed on one side of the light incident surface 1, specifically, the light sources 7 can be LED lamps, so that light rays are incident from the light incident surface 1, and the light rays irradiate onto the reflecting surface 3, and the diffuse reflection light guide of the conventional design is converted into a surface reflection light guide, and the light rays are emitted from the light emergent surface 2 of the light guide plate, so as to achieve the effect of light guide display.

The light emitting surface 2 has a plurality of protruding structures arranged in parallel, the plurality of protruding structures are arranged in series, preferably, the length direction of the protruding structures is perpendicular to the light incident surface 2, please refer to fig. 2, the protruding structures include a first protruding structure 21 and a second protruding structure 22, the cross section of the first protruding structure 21 is V-shaped or arc-shaped, the cross section of the second protruding structure 22 is arc-shaped, the height of the second protruding structure 22 along the length direction thereof is greater than the height of the first protruding structure 21 along the length direction thereof, and further, when a highly reflective film is covered on the light guide plate, the second protruding structure 22 can also play a role in supporting. By designing the distribution and density of the protruding structures on the light emitting surface 2, the uniformity of emergent light can be controlled, and further the brightness of the emergent light is improved.

Referring to fig. 3, 4 and 5, the reflection microstructures 4 are exemplarily shown to be recessed from the reflection surface toward 3 to the interior of the light guide plate entity, and the reflection microstructures 4 gradually increase from being close to the light incident surface 1 to being far from the light incident surface 1.

Preferably, the reflection microstructure 4 is a concave polyhedral structure, referring to fig. 4, the reflection microstructure 4 includes a first side structure 41, a second side structure 42, a third side structure 43 and a fourth side structure 44, the first side structure 41 is opposite to the second side structure 42, the third side structure 43 is opposite to the fourth side structure 44, and the first side structure 41 faces the light incident surface 1. The first side surface structure 41 is a plane structure, and an included angle between the first side surface structure 41 and the reflection surface 3 is an acute angle, in another embodiment, the first side surface structure 41 may further be formed by connecting two plane structures, which are not parallel to each other, with the reflection surface 3, and the included angle is an acute angle.

With reference to fig. 4, the reflective microstructure 4 further includes a top surface structure 45, and the first side surface structure 41, the second side surface structure 42, the third side surface structure 43 and the fourth side surface structure 44 are respectively connected to the top surface structure 45, the top surface structure 45 is opposite to the reflective surface 3, and the top surface structure 45 is a peak-shaped structure, a spherical crown-shaped structure or a planar structure having an included angle of 0 degree to 10 degrees with the reflective surface 3. The included angles between the third side structure 43 and the fourth side structure 44 and the reflection surface 3 are right angles or acute angles.

In other embodiments, referring to fig. 5, the reflective surface 3 has a plurality of groove structures 8, the groove structures 8 are recessed from the reflective surface 3 toward the interior of the light guide plate, a plurality of reflective protrusions 9 are distributed on each groove structure 8, and the reflective protrusions 9 in each groove structure 8 are distributed at intervals along the length direction of the groove structure 8.

In a further embodiment, referring to fig. 3, 5 and 6, the reflecting surface 3 is provided with a plurality of protruding small balls 6, the protruding small balls 6 protrude from the reflecting surface 3 toward the light exit surface 2, and the protruding small balls 6 are randomly distributed on the reflecting surface 3 and the reflecting microstructure 4.

The utility model provides a go out the plain noodles and the surperficial surface design surface microstructure of multiple specific shape, the diffuse reflection leaded light with traditional design converts the face reflection leaded light into, with the light that LED sent, jets out light from going out the plain noodles according to the angle of design, and the microstructure of incident light various shapes on the plane of reflection carries out corresponding refraction for incident light is whole there is not the dead angle in the scattering on the plane of reflection, increases widely the homogeneity of going out the plain noodles light-emitting. The utilization rate of the light source is improved, and the brightness of the light emitting surface is improved. Therefore, the quantity of the LED lamp beads can be reduced, the cost is effectively reduced, the power consumption is reduced, and the energy is saved.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by one skilled in the art.

While embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications and changes may be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. A high-brightness light guide plate is characterized by comprising a light incident surface (1), a light emergent surface (2) and a reflecting surface (3) opposite to the light emergent surface (2), wherein the light emergent surface (2) and the reflecting surface (3) are respectively intersected with the light incident surface (1), the light emergent surface (2) is provided with a plurality of parallel convex structures which are continuously arranged,

the reflection surface (3) is randomly distributed with a plurality of reflection microstructures (4), the reflection microstructures (4) are inwards concave from the reflection surface (3) towards the inside of the light guide plate entity, the reflection microstructures (4) are concave polyhedrons, and the reflection microstructures (4) gradually increase from the part close to the light incident surface (1) to the part far away from the light incident surface (1).

2. The high brightness light guide plate according to claim 1, wherein the protrusion structures comprise a first protrusion structure (21) and a second protrusion structure (22), the first protrusion structure (21) has a V-shaped or arc-shaped cross section, the second protrusion structure (22) has an arc-shaped cross section, and a height of the second protrusion structure (22) along a length direction thereof is greater than a height of the first protrusion structure (21) along the length direction thereof.

3. The high brightness light guide plate according to claim 1, wherein the reflective microstructure (4) comprises a first side structure (41), a second side structure (42), a third side structure (43) and a fourth side structure (44), the first side structure (41) and the second side structure (42) are opposite, the third side structure (43) and the fourth side structure (44) are opposite, and the first side structure (41) faces the light incident surface (1).

4. The high brightness light guide plate according to claim 3, wherein the first side surface structure (41) is a planar structure, and an included angle between the first side surface structure (41) and the reflection surface (3) is an acute angle.

5. The high brightness light guide plate according to claim 3, wherein the first side structure (41) is formed by connecting two plane structures forming an acute angle with the reflecting surface (3).

6. The high brightness light guide plate according to claim 3, wherein the reflective micro-structure (4) further comprises a top surface structure (45), the first side surface structure (41), the second side surface structure (42), the third side surface structure (43) and the fourth side surface structure (44) respectively intersect with the top surface structure (45), and the top surface structure (45) is a peak-like structure, a spherical crown-like structure or a planar structure with an included angle of 0 to 10 degrees with the reflective surface (3).

7. The high brightness light guide plate according to claim 6, wherein the reflecting surface (3) is provided with a plurality of small protruding balls (6), the small protruding balls (6) protrude from the reflecting surface (3) towards the light exit surface (2), and the small protruding balls (6) are randomly distributed on the reflecting surface (3) and the reflecting microstructures (4).