CN217060558U

CN217060558U - Light guide plate with crescent-shaped microstructures

Info

Publication number: CN217060558U
Application number: CN202220669970.0U
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 light guide plate of crescent type micro-structure, it 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 to go out the plain noodles, be provided with a plurality of groove structures and a plurality of crescent form micro-structures on the plane of reflection, groove structure's length direction with it is parallel to go into the plain noodles, groove structure certainly the plane of reflection court play plain noodles indent, crescent form micro-structure is in one side of plane of reflection is prominent circular-arc, and the opposite side is circular-arc of indent, crescent form micro-structure random distribution the plane of reflection with the groove is structural. The utility model discloses a go out the plain noodles and reflect the surface and designed the micro-structure of multiple shape, lead the diffuse reflection leaded light of traditional design and convert the face reflection into, jet out light from going out the plain noodles, improve the utilization ratio of light source, make play plain noodles brilliance promote.

Description

Light guide plate with crescent-shaped microstructure

Technical Field

The utility model relates to a leaded light technical field especially relates to a light guide plate of crescent micro-structure.

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, and the light source is required to be a high-brightness LED lamp, which is high in cost and power consumption.

Therefore, a new technical solution is needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the prior art, the utility model provides a light guide plate with a crescent-shaped microstructure, which comprises a light incident surface, a light emergent surface and a reflecting surface arranged opposite to the light emergent surface, wherein the light emergent surface and the reflecting surface are respectively intersected with the light incident surface, the light-emitting surface is provided with a plurality of parallel convex structures which are continuously arranged, the reflecting surface is provided with a plurality of groove structures and a plurality of crescent-shaped microstructures, the length direction of the groove structures is parallel to the light incident surface, the groove structure is concave inwards from the reflecting surface to the light emitting surface, the crescent-shaped microstructures are in a protruding arc shape on one side of the reflecting surface, the other side of the crescent-shaped microstructures is in a concave arc shape, the crescent-shaped microstructures are randomly distributed on the reflecting surface and the groove structure, and the crescent microstructures are gradually enlarged from the part close to the light incident surface to the part far away from the light incident surface.

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.

Furthermore, the groove structure comprises a first side surface structure, a second side surface structure and a third side surface structure, the first side surface structure and the third side surface structure are respectively intersected with the second side surface structure, the second side surface structure is a peak-shaped structure, an arc-shaped structure or a plane structure with an acute included angle of the reflecting surface, the first side surface structure is a plane structure with an acute included angle of the reflecting surface, and the first side surface structure faces the light incident surface.

Furthermore, the groove structures gradually increase from the position close to the light incident surface to the position far away from the light incident surface.

Furthermore, the crescent-shaped microstructure comprises a first arc-shaped structure, a second arc-shaped structure and a main reflecting structure, the first arc-shaped structure and the main reflecting structure are respectively intersected with the second arc-shaped structure, the area of the first arc-shaped structure is larger than that of the second arc-shaped structure, and a space surrounded by the first arc-shaped structure, the second arc-shaped structure and the main reflecting structure is protruded from the reflecting surface towards the light-emitting surface.

Further, the second arc-shaped structure is a peak-shaped structure, a curved surface structure or a plane structure.

Furthermore, the main reflection structure is located on one side of the second arc-shaped structure far away from the light incident surface and used for reflecting light to the light emergent surface, and the main reflection structure is formed by splicing a plane structure or two plane structures which are not parallel to each other.

Compared with the prior art, the light guide plate of crescent type microstructure of this application has following beneficial effect: 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.

Drawings

Fig. 1 is a schematic perspective view of 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 reflection surface according to an embodiment of the present invention;

FIG. 4 is a schematic view of the reflection surface inside the light guide plate body according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a groove structure in an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a crescent-shaped microstructure in an embodiment of the present invention.

The light source comprises a light incident surface 1, a light emergent surface 2, a reflecting surface 3, a light source 4, a first convex structure 5, a second convex structure 6, a groove structure 7, a crescent-shaped microstructure 8, a first side structure 9, a second side structure 10, a third side structure 11, a first arc structure 12, a second arc structure 13, a main reflecting structure 14 and convex balls 15.

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 by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and 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 light guide plate with a crescent-shaped microstructure, 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, the present embodiment provides one or more light sources 4, the light sources 4 are disposed correspondingly on one side of the light incident surface 1, specifically, the light sources 4 can be LED lamps, so that light is incident from the light incident surface 1, and the light irradiates on the reflecting surface 3, the diffuse reflection light guide of the conventional design is converted into a surface reflection light guide, and the light is emitted from the light emergent surface 2 of the light guide plate, so as to achieve the effect of light guide display.

Referring to fig. 2, the light emitting surface 2 has a plurality of parallel protruding structures, the plurality of protruding structures are continuously arranged, the protruding structures include a first protruding structure 5 and a second protruding structure 6, a cross section of the first protruding structure 5 is V-shaped or arc-shaped, a cross section of the second protruding structure 6 is arc-shaped, and a height of the second protruding structure 6 along a length direction thereof is greater than a height of the first protruding structure 5 along the length direction thereof. Further, when the light guide plate is covered with a film having high reflectivity, the second protrusion structures 6 may also serve as a support. Through designing the distribution and density of the protruding structures on the light emitting surface 2, the uniformity of emergent light rays of emergent light can be controlled, and further the brightness of the emergent light is improved.

Referring to fig. 3, 4 and 5, a plurality of groove structures 7 and a plurality of crescent-shaped microstructures 8 are disposed on the reflection surface 3, preferably, the length direction of the groove structures 7 is parallel to the light incident surface 1, the groove structures 7 are recessed from the reflection surface toward the light exit surface 2, that is, toward the inside of the light guide plate entity, the groove structures 7 gradually increase from the position close to the light incident surface 1 to the position far from the light incident surface 1, and the groove structures 7 are continuously or discontinuously disposed. The cross section of the groove structure 7 is V-shaped, arc-shaped or similar to trapezoid, please refer to fig. 4, the groove structure 7 includes a first side structure 9, a second side structure 10 and a third side structure 11, the first side structure 9 and the third side structure 11 are located on two sides of the second side structure 10, the second side structure 10 is close to the light emitting surface 2, the second side structure 10 is a peak-shaped structure, an arc-shaped structure or a plane structure with an included angle of the reflecting surface 3 being an acute angle, the first side structure 9 is a plane structure with the included angle of the reflecting surface 3 being an acute angle, and the first side structure 9 faces the light incident surface 1.

Referring to fig. 3, fig. 4 and fig. 6, the plurality of crescent-shaped microstructures 8 are randomly distributed on the reflection surface 3, and the plurality of crescent-shaped microstructures 8 gradually increase from the position close to the light incident surface 1 to the position away from the light incident surface 1. Referring to fig. 5, the crescent-shaped microstructure 8 includes a first arc-shaped structure 12, a second arc-shaped structure 13 and a main reflection structure 14, the first arc-shaped structure 12 and the main reflection structure 14 are respectively intersected with the second arc-shaped structure 13, and a space surrounded by the first arc-shaped structure 12, the second arc-shaped structure 13 and the main reflection structure 14 is protruded toward the reflection surface 3. The area of the first arc-shaped structure 12 is larger than that of the second arc-shaped structure 13, the first arc-shaped structure 12 and the second arc-shaped structure 13 are curved structures, and in other embodiments, the second arc-shaped structure 13 may also be a spike-shaped structure or a planar structure. The main reflection structure 14 is located on one side of the second arc-shaped structure 13 away from the light incident surface 1, and is configured to reflect light to the light emitting surface 2, and the main reflection structure 14 may be formed by splicing two plane structures that are not parallel to each other.

Further, referring to fig. 3, the reflecting surface 3 is provided with a plurality of small convex balls 15, the small convex balls 15 are convex from the reflecting surface 3 to the light emitting surface 2, the small convex balls 15 are randomly distributed on the reflecting surface 3, and the small convex balls 15 can be made by processes such as laser spot, impact spot or shot blasting.

The utility model provides a 3 surface designs the surface microstructure of multiple specific shape on play plain noodles and plane of reflection, with the diffuse reflection leaded light of traditional design, converts the face reflection leaded light into, with the light that LED sent, jets out light from the play plain noodles according to the angle of design, and the incident light carries out corresponding refraction at the microstructure of the various shapes on plane of reflection 3 for incident light is whole there is not the dead angle in the scattering on the plane of reflection 3, increases widely the homogeneity of play 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. The light guide plate with the crescent-shaped microstructure is characterized by comprising a light incident surface (1), a light emergent surface (2) and a reflecting surface (3) arranged 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,

be provided with a plurality of groove structure (7) and a plurality of crescent micro-structure (8) on plane of reflection (3), the length direction of groove structure (7) with income plain noodles (1) are parallel, groove structure (7) certainly plane of reflection (3) orientation go out plain noodles (2) indent, crescent micro-structure (8) are in one side of plane of reflection (3) is bellied circular-arc, and the opposite side is the circular-arc of indent, and is a plurality of crescent micro-structure (8) random distribution plane of reflection (3) and on groove structure (7), and it is a plurality of crescent micro-structure is close to from going into plain noodles (1) to keeping away from income plain noodles (1) grow gradually.

2. The light guide plate with crescent-shaped microstructures according to claim 1, wherein the protruding structures comprise a first protruding structure (5) and a second protruding structure (6), the cross section of the first protruding structure (5) is V-shaped or arc-shaped, the cross section of the second protruding structure (6) is arc-shaped, and the height of the second protruding structure (6) along the length direction thereof is greater than the height of the first protruding structure (5) along the length direction thereof.

3. The light guide plate with a crescent-shaped microstructure according to claim 1, wherein the groove structures (7) comprise a first side surface structure (9), a second side surface structure (10) and a third side surface structure (11), the first side surface structure (9) and the third side surface structure (11) are respectively intersected with the second side surface structure (10), the second side surface structure (10) is a peak-shaped structure, an arc-shaped structure or a plane structure with an acute included angle of the reflecting surface (3), the first side surface structure (9) is a plane structure with an acute included angle of the reflecting surface (3), and the first side surface structure (9) faces the light incident surface (1).

4. The light guide plate with crescent-shaped microstructures according to claim 1, wherein the plurality of groove structures (7) become gradually larger from the light incident surface (1) to the distance from the light incident surface (1).

5. The light guide plate with crescent-shaped microstructures according to claim 1, wherein the crescent-shaped microstructures (8) comprise a first arc-shaped structure (12), a second arc-shaped structure (13) and a main reflection structure (14), the first arc-shaped structure (12) and the main reflection structure (14) are respectively intersected with the second arc-shaped structure (13), the area of the first arc-shaped structure (12) is larger than that of the second arc-shaped structure (13), and a space enclosed by the first arc-shaped structure (12), the second arc-shaped structure (13) and the main reflection structure (14) is protruded from the reflection surface (3) to a position far away from the light emitting surface (2).

6. The light guide plate with crescent-shaped microstructures according to claim 5, wherein the second arc-shaped structures (13) are peak-shaped structures, curved structures or planar structures.

7. The light guide plate with the crescent-shaped microstructure according to claim 5, wherein the main reflection structure (14) is located on one side of the second arc-shaped structure (13) away from the light incident surface (1) and used for reflecting light to the light emergent surface (2), and the main reflection structure (14) is formed by splicing a planar structure or two non-parallel planar structures.