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CN210109376U - Flat plate light guide plate - Google Patents

Flat plate light guide plate Download PDF

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Publication number
CN210109376U
CN210109376U CN201921124735.XU CN201921124735U CN210109376U CN 210109376 U CN210109376 U CN 210109376U CN 201921124735 U CN201921124735 U CN 201921124735U CN 210109376 U CN210109376 U CN 210109376U
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China
Prior art keywords
light
guide plate
light guide
plate body
plain noodles
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CN201921124735.XU
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Chinese (zh)
Inventor
黄爱群
阮绪红
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DONGGUAN YUANLI ELECTRONIC TECHNOLOGY Co Ltd
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DONGGUAN YUANLI ELECTRONIC TECHNOLOGY Co Ltd
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Priority to CN201921124735.XU priority Critical patent/CN210109376U/en
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Abstract

The utility model relates to a light guide plate technical field, more specifically say, it relates to a plate light guide plate, and its technical scheme main points are: including the light guide plate body, this light guide plate body is close to a lateral wall of LED lamp for going into the plain noodles, and two relative surfaces of this light guide plate body are play plain noodles and plane of reflection respectively, the plane of reflection surface has a plurality of equidistance and arranges and isosceles first V type structure, and is a plurality of the apex angle of first V type structure is unchangeable and the degree of depth is crescent to the direction of keeping away from going into the plain noodles, go out the plain noodles surface and have the circular arc protruding structure of regular continuous arrangement, circular arc protruding structure sets up with first V type structure is perpendicular, is close to the LED lamp the income plain noodles is provided with a plurality of continuous arrangement's second V type structure. The utility model discloses a plate light guide plate has the advantage that improves light guide plate light-emitting light energy utilization.

Description

Flat plate light guide plate
Technical Field
The utility model relates to a light guide plate technical field, more specifically say, it relates to a plate light guide plate.
Background
The light guide plate generally includes a light incident surface, a light emergent surface connected to the light incident surface, and a reflecting surface opposite to the light emergent surface. In the side-incident light source module, light emitted from a light emitting element (e.g., an LED lamp) disposed beside a side surface (i.e., an incident surface) of a light guide plate is guided to a front surface (i.e., an emergent surface) of the light guide plate through a reflecting surface to form a surface light source.
In order to make the light emitted from the light-emitting surface form a uniform surface light source, light guide points (network-shaped micro protrusions or recesses) are generally distributed on the reflecting surface, and when the light strikes each light guide point, the reflected light is diffused at various angles, and then the light is emitted from the light-emitting surface of the light guide plate after the total reflection condition is destroyed, so as to form the surface light source.
However, the problem of uneven light distribution of the light guide plate easily exists when the light guide is emitted from the light emitting surface through the light guide points, so that the light utilization rate of the light guide plate is low.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a plate light guide plate has the advantage that improves the light energy utilization ratio of light guide plate light-emitting.
The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a flat plate light guide plate, includes the light guide plate body, and this light guide plate body is close to one side lateral wall of LED lamp for going into the plain noodles, and two relative surfaces of this light guide plate body are play plain noodles and plane of reflection respectively, the plane of reflection surface has a plurality of equidistance to arrange and isosceles first V type structure, and is a plurality of the apex angle of first V type structure is unchangeable and the degree of depth is crescent to the direction of keeping away from going into the plain noodles, it has the circular arc protruding structure of regular continuous arrangement to go out the plain noodles surface, circular arc protruding structure sets up with first V type structure is perpendicular, is close to the LED lamp the income plain noodles is provided with a plurality of continuous arrangement.
By adopting the technical scheme, light emitted by the light source of the LED lamp positioned on one side of the light guide plate body enters the light guide plate body from the light incident surface, and is reflected to the light emergent surface through the plurality of first V-shaped structures arranged on the reflecting surface to form a surface light source, so that the same effect as a light guide point is achieved, the vertex angle of each first V-shaped structure is unchanged, and the depth of each first V-shaped structure is gradually increased towards the direction far away from the light incident surface, so that the light energy is uniformly distributed on the light guide plate body, the loss of the light energy on the side far away from the light source of the LED lamp in the light guide plate body is avoided, and the uniformity of the light; the LED lamp is uneven in light rays entering the light guide plate body through the light inlet face, the incident light rays are dispersed through the plurality of second V-shaped structures which are continuously arranged and are close to the light inlet face of the LED lamp, the uniformity of the light rays entering the light guide plate body is improved, and the light outlet uniformity of the light guide plate body is improved through the matching of the light inlet face and the reflecting face; the refraction angle of the light is changed through the arc-shaped convex structures on the light-emitting surface, so that the light-gathering effect is achieved, the light is reasonably utilized in an effective visual area, the light-receiving surface of each arc-shaped convex structure is large, the uniformity of light emission is improved, the light is softer, and therefore the light-emitting uniformity of the light guide plate is improved through the combination of the first V-shaped structures on the reflecting surface, the second V-shaped structures on the light-incident surface and the arc-shaped convex structures on the light-emitting surface, and the utilization rate of light energy is improved.
The utility model discloses further set up to: the depth arrangement mode of the first V-shaped structures adopts a Bezier curve arrangement mode.
Through adopting above-mentioned technical scheme, the degree of depth arrangement mode of first V type structure adopts Bezier curve arrangement mode can be accurate adjust first V type structure to improve light guide plate body and to light utilization ratio and homogeneity of ability.
The utility model discloses further set up to: the depth value range of the first V-shaped structure is 0.003 mm-0.03 mm.
Through adopting above-mentioned technical scheme, the degree of depth range of first V type structure is 0.003mm ~ 0.03mm, can make the comparatively even distribution of light energy on the light guide plate body to improve the homogeneity of light guide plate body light-emitting.
The utility model discloses further set up to: the vertex angle value of the first V-shaped structure ranges from 110  to 140 .
By adopting the technical scheme, the range of the vertex angle value of the first V-shaped structure is 110  -140 , so that light energy can be uniformly distributed on the light guide plate body and a better light condensation effect is achieved, the emergent angle of the light ray from the light emergent surface of the light guide plate body is increased, and the reasonable utilization of the light ray in the effective visual area of the light guide plate body is improved.
The utility model discloses further set up to: the vertex angle value range of the second V-shaped structure is 80  -110 .
Through adopting above-mentioned technical scheme, the apex angle value scope of second V type structure is 80  ~ 110  can have better spotlight effect to light to improve the luminance of the light guide plate body income plain noodles incident light that keeps away from the light source.
The utility model discloses further set up to: the depth value range of the second V-shaped structure is 0.05 mm-0.1 mm.
Through adopting above-mentioned technical scheme, the degree of depth value scope of second V type structure is 0.05mm ~ 0.1mm can make even entering into the light guide plate from going into the plain noodles of light this internal.
The utility model discloses further set up to: the radius value range of the arc bulge structure is 0.07 mm-0.1 mm.
By adopting the technical scheme, the arc convex structure with the radius value ranging from 0.07mm to 0.1mm can adjust most of light rays to the positive visual angle of the light-emitting surface, so that the light rays are reasonably distributed in the effective visual area of the light-emitting surface.
The utility model discloses further set up to: the depth value range between two adjacent arc convex structures is 1-7 mu m.
By adopting the technical scheme, the depth value range between two adjacent arc convex structures is between 1 mu m and 7 mu m, so that most light rays can be adjusted to the positive visual angle of the light-emitting surface, and the light rays are reasonably distributed in the effective visual area of the light-emitting surface.
To sum up, the utility model discloses following beneficial effect has: the light source of the LED lamp positioned on one side of the light guide plate body emits light rays into the light guide plate body from the light incident surface, the light rays are reflected to the light emergent surface through the plurality of first V-shaped structures arranged on the reflecting surface to form a surface light source, so that the same effect as a light guide point is achieved, the vertex angle of each first V-shaped structure is unchanged, the depth of each first V-shaped structure is gradually increased towards the direction far away from the light incident surface, the light energy is uniformly distributed on the light guide plate body, the loss of the light energy on one side far away from the light source of the LED lamp in the light guide plate body is avoided, and the uniformity of the light emergent; the LED lamp is uneven in light rays entering the light guide plate body through the light inlet face, the incident light rays are dispersed through the plurality of second V-shaped structures which are continuously arranged and are close to the light inlet face of the LED lamp, the uniformity of the light rays entering the light guide plate body is improved, and the light outlet uniformity of the light guide plate body is improved through the matching of the light inlet face and the reflecting face; the refraction angle of the light is changed through the arc-shaped convex structures on the light-emitting surface, so that the light-gathering effect is achieved, the light is reasonably utilized in an effective visual area, the light-receiving surface of each arc-shaped convex structure is large, the uniformity of light emission is improved, the light is softer, and therefore the light-emitting uniformity of the light guide plate is improved through the combination of the first V-shaped structures on the reflecting surface, the second V-shaped structures on the light-incident surface and the arc-shaped convex structures on the light-emitting surface, and the utilization rate of light energy is improved.
Drawings
Fig. 1 is a top view of a light emitting surface of a light guide plate body in the embodiment;
FIG. 2 is a side view of the light-emitting surface of the light guide plate body in the present embodiment;
FIG. 3 is a top view of the reflection surface of the light guide plate body in this embodiment;
FIG. 4 is a side view of the reflection surface of the light guide plate body in the present embodiment;
fig. 5 is a bezier graph in the present embodiment.
In the figure: 1. a light guide plate body; 2. a light incident surface; 3. a light-emitting surface; 4. a reflective surface; 5. a circular arc convex structure; 6. a first V-shaped structure; 7. an LED lamp; 8. a second V-shaped structure.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
A flat light guide plate, as shown in fig. 1 and 3, includes a light guide plate body 1, wherein the light guide plate body 1 is made of polycarbonate, polymethyl methacrylate or acrylic synthetic resin. The light guide plate body 1 has a light incident surface 2 on one side wall, and the two opposite surfaces of the light guide plate body 1 are a light emergent surface 3 and a reflecting surface 4, respectively.
As shown in fig. 1 and fig. 2, the surface of the light emitting surface 3 has arc convex structures 5 which are regularly and continuously arranged. The refraction angle of the light is changed through the arc convex structures 5 on the light-emitting surface 3, so that the light-gathering effect is achieved, the light is reasonably utilized in an effective visual area, the light-receiving surface of each arc convex structure 5 is large, the uniformity of light emission is improved, and the light is softer.
As shown in fig. 2, specifically, the radius value of the arc-shaped protrusion structure 5 ranges from 0.07mm to 0.1mm, and most of the light can be adjusted to the positive viewing angle of the light-emitting surface 3, so that the light can be reasonably distributed in the effective viewing area of the light-emitting surface 3. The depth value range between two adjacent arc convex structures 5 is 1 μm to 7 μm, and most of light rays can be adjusted to the positive viewing angle of the light-emitting surface 3, so that the light rays are reasonably distributed in the effective viewing area of the light-emitting surface 3.
As shown in fig. 1 and 3, the surface of the reflection surface 4 has a plurality of equi-spaced arranged isosceles first V-shaped structures 6, each first V-shaped structure 6 is specifically a rib structure, the vertex angle of each first V-shaped structure 6 is unchanged, the depth of each first V-shaped structure is gradually increased towards the direction far away from the light incident surface 2, the circular arc protrusion structures 5 are perpendicular to the first V-shaped structures 6, the light incident surface 2 close to the LED lamp 7 is provided with a plurality of continuously arranged second V-shaped structures 8, and each second V-shaped structure 8 is specifically a V-shaped groove structure. The light emitted by the light source of the LED lamp 7 positioned at one side of the light guide plate body 1 enters the light guide plate body 1 from the light incident surface 2, the light is reflected to the light emitting surface 3 through the plurality of first V-shaped structures 6 arranged on the reflecting surface 4 to form a surface light source, so that the same effect as a light guide point is achieved, the vertex angle of each first V-shaped structure 6 is unchanged, the depth of each first V-shaped structure is gradually increased towards the direction far away from the light incident surface 2, the light energy is uniformly distributed on the light guide plate body 1, the loss of the light energy at one side far away from the light source of the LED lamp 7 in the light guide plate body 1 is avoided, the uniformity of the light emitted by the light guide plate body 1 is improved, the light emitted by the LED lamp 7 through the light incident surface 2 is not uniform, the incident light enters the light guide plate body 1 through the plurality of second V-shaped structures 8 arranged in series close to the, through the cooperation of the light incident surface 2 and the reflecting surface 4, the light energy utilization rate of the light emitted by the light guide plate body 1 is improved.
As shown in fig. 4, specifically, the depth arrangement of the plurality of first V-shaped structures 6 is a bezier curve arrangement, and as can be seen from a bezier graph shown in fig. 5, the abscissa is the light stroke, i.e., the length of the light guide plate in the light incident direction, and the ordinate is the depth of the V-shaped structures 6, and the depth of the V-shaped structures 6 is controlled by the change of the curvature control points, so that the light energy is uniformly distributed on the light guide plate. The first V-shaped structures 6 can be accurately adjusted through the Bezier curve arrangement mode, so that the utilization rate and uniformity of the light guide plate body 1 to light energy are improved. The depth value range of the first V-shaped structures 6 is 0.001 mm-0.05 mm, so that light can be uniformly distributed on the light guide plate body 1, and the light emitting uniformity of the light guide plate body 1 is improved. The vertex angle value range 110  -140  of the first V-shaped structure 6 enables light energy to be uniformly distributed on the light guide plate body 1 and has a good light condensation effect, so that the angle of light emitted from the light emitting surface 3 of the light guide plate body 1 is increased, and the reasonable utilization of the light in the effective visual area of the light guide plate body 1 is improved.
As shown in fig. 1 and fig. 3, specifically, the vertex angle range of the second V-shaped structure 8 is 80  -110 , which can have a better light-gathering effect on light, so as to improve the brightness of the incident light of the light incident surface 2 of the light guide plate body 1 far from the light source. The depth value range of the second V-shaped structures 8 is 0.05 mm-0.1 mm, so that light can uniformly enter the light guide plate body 1 from the light incident surface 2.
The implementation principle of the embodiment is as follows: the light source of the LED lamp 7 positioned on one side of the light guide plate body 1 emits light into the light guide plate body 1 from the light incident surface 2, the light is reflected to the light emitting surface 3 through the plurality of first V-shaped structures 6 arranged on the reflecting surface 4 to form a surface light source, so that the same effect as a light guide point is achieved, the vertex angle of each first V-shaped structure 6 is unchanged, the depth of each first V-shaped structure is gradually increased towards the direction far away from the light incident surface 2, the light energy is uniformly distributed on the light guide plate body 1, the loss of the light energy on one side far away from the light source of the LED lamp 7 in the light guide plate body 1 is avoided, the light energy utilization rate of the light emitted by the light guide plate body 1 is improved, and the incident brightness is not uniform due to the fact that the light incident surface; because the light rays of the LED lamp 7 which are incident into the light guide plate body 1 through the light incident surface 2 are not uniform, the incident light rays are dispersed through the plurality of second V-shaped structures 8 which are arranged in series and are close to the light incident surface 2 of the LED lamp 7, the uniformity of the light rays entering the light guide plate body 1 is improved, the light energy utilization rate of the light emitted from the light guide plate body 1 is improved through the matching of the light incident surface 2 and the reflecting surface 4, the refraction angle of the light rays is changed through the circular arc convex structures 5 on the light emitting surface 3, the light condensation effect is achieved, the light rays are reasonably utilized in an effective visual area, the light receiving surface of each circular arc convex structure 5 is larger, the light energy utilization rate of the light rays emitted is improved, and the light rays are softer, therefore, the first V-shaped structures 6 on the reflecting surface 4, the second V-shaped structures 8 on the light, thereby improving the light energy utilization rate of the light emitted from the light guide plate.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. A flat light guide plate, characterized in that: including light guide plate body (1), this light guide plate body (1) is close to one side lateral wall of LED lamp (7) and is going into plain noodles (2), and two relative surfaces of this light guide plate body (1) are play plain noodles (3) and plane of reflection (4) respectively, plane of reflection (4) surface has a plurality of equidistance and arranges and isosceles first V type structure (6), and is a plurality of the apex angle of first V type structure (6) is unchangeable and the degree of depth is to keeping away from the direction crescent of going into plain noodles (2), it has regular continuous arrangement's circular arc protruding structure (5) to go out plain noodles (3) surface, circular arc protruding structure (5) set up with first V type structure (6) are perpendicular, are close to LED lamp (7) go into plain noodles (2) and are provided with a plurality of continuous arrangement's second V type structure (8).
2. The flat-type light guide plate according to claim 1, wherein: the depth arrangement mode of the first V-shaped structures (6) adopts a Bezier curve arrangement mode.
3. The flat-type light guide plate according to claim 2, wherein: the depth value range of the first V-shaped structure (6) is 0.001-0.05 mm.
4. A flat-type light guide plate according to claim 3, wherein: the vertex angle value of the first V-shaped structure (6) ranges from 110  to 140 .
5. The flat-type light guide plate according to claim 1, wherein: the vertex angle value range of the second V-shaped structure (8) is 80  -110 .
6. The flat-type light guide plate according to claim 1 or 5, wherein: the depth value range of the second V-shaped structure (8) is 0.05 mm-0.1 mm.
7. The flat-type light guide plate according to claim 1, wherein: the radius value range of the arc convex structure (5) is 0.07 mm-0.1 mm.
8. A flat-type light guide plate according to claim 1 or 7, wherein: the depth value range between two adjacent arc convex structures (5) is 1-7 mu m.
CN201921124735.XU 2019-07-16 2019-07-16 Flat plate light guide plate Active CN210109376U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921124735.XU CN210109376U (en) 2019-07-16 2019-07-16 Flat plate light guide plate

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921124735.XU CN210109376U (en) 2019-07-16 2019-07-16 Flat plate light guide plate

Publications (1)

Publication Number Publication Date
CN210109376U true CN210109376U (en) 2020-02-21

Family

ID=69567165

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921124735.XU Active CN210109376U (en) 2019-07-16 2019-07-16 Flat plate light guide plate

Country Status (1)

Country Link
CN (1) CN210109376U (en)

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