CN215953900U - Light guide plate with light diffusion effect and preparation device thereof - Google Patents
Light guide plate with light diffusion effect and preparation device thereof Download PDFInfo
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- CN215953900U CN215953900U CN202122283731.XU CN202122283731U CN215953900U CN 215953900 U CN215953900 U CN 215953900U CN 202122283731 U CN202122283731 U CN 202122283731U CN 215953900 U CN215953900 U CN 215953900U
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Abstract
The utility model relates to the technical field of light guide plates, in particular to a light guide plate with a light diffusion effect and a preparation device thereof; the light guide plate with the light diffusion effect comprises a mesh point structure layer, a light guide plate base material, a diffusion layer and a particle layer, the mesh point structure layer is fixedly connected with the light guide plate base material, the mesh point structure layer is located below the light guide plate base material, the diffusion layer is fixedly connected with the light guide plate base material, the particle layer is located above the light guide plate base material, the particle layer is fixedly connected with the diffusion layer, the particle layer is located above the diffusion layer, the mesh point structure layer plays a role in light diffuse reflection, the diffusion layer is rough in surface, the effect of primary diffusion is played, the particle layer plays a role in secondary diffusion, pictures and optical effects are better, the traditional diffusion sheet is replaced, and the processing cost is reduced.
Description
Technical Field
The utility model relates to the technical field of light guide plates, in particular to a light guide plate with a light diffusion effect and a preparation device thereof.
Background
The backlight module is an important part in a television, wherein the backlight module of the side light type display comprises a reflecting sheet, a light guide plate, a diffusion sheet and a prism sheet from bottom to top in sequence when being assembled; the light guide plate can uniformly emit light through various mesh points with different densities and sizes. Because the angle of the emitted light needs to be corrected, a uniform picture is obtained.
Usually, a diffusion sheet is added on the light-emitting surface of the light guide plate of the backlight module, but this method will increase the number of steps for assembling the complete machine, and increase the manufacturing cost and thickness of the complete machine.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a light guide plate with a light diffusion effect and a preparation device thereof, and aims to solve the technical problems that in the prior art, the operation steps of the whole machine assembly are increased and the manufacturing cost and the thickness of the whole machine are increased due to the fact that a diffusion sheet is added on the light-emitting surface of the light guide plate of a backlight module.
In order to achieve the above object, the present invention provides a light guide plate with a light diffusion effect, where the light guide plate with the light diffusion effect includes a dot structure layer, a light guide plate substrate, a diffusion layer, and a particle pattern layer, the dot structure layer is fixedly connected to the light guide plate substrate and located below the light guide plate substrate, the diffusion layer is fixedly connected to the light guide plate substrate and located above the light guide plate substrate, and the particle pattern layer is fixedly connected to the diffusion layer and located above the diffusion layer.
The mesh point structure layer plays a role in light diffuse reflection, the diffusion layer is rough in surface and plays a role in primary diffusion, and the particle layer plays a role in secondary diffusion, so that the picture and the optical effect are better.
The light guide plate with the light diffusion effect further comprises two PE protective layers, the two PE protective layers are fixedly connected with the particle image layer and the mesh point structure layer respectively, one of the PE protective layers is located below the mesh point structure layer, and the other PE protective layer is located below the particle image layer.
Through the PE protective layer plays the guard action, makes things convenient for the plain noodles to distinguish.
The utility model also provides a device for preparing the light guide plate with the light diffusion effect, which comprises a supporting seat, a first transmission belt, a supporting frame, a second transmission belt, an upper roller, a lower roller and a spraying component, wherein the first transmission belt is movably connected with the supporting seat and is positioned above the supporting seat, the supporting frame is fixedly connected with the supporting seat and is positioned above the supporting seat and is positioned at one side of the first transmission belt, the upper roller is rotatably connected with the supporting frame and is positioned in the supporting frame, the lower roller is fixedly connected with the supporting frame and is positioned below the upper roller, the second transmission belt is fixedly connected with the supporting seat and is positioned at one side of the supporting seat, and the spraying component is fixedly connected with the supporting seat, and is positioned above the second conveyor belt.
Through first transmission band will cut the light guide plate substrate transport extremely go up the gyro wheel with between the gyro wheel down, through go up the gyro wheel with the roll printing on gyro wheel surface down is right the light guide plate substrate extrudees, forms the site structural layer with the diffusion layer, rethread the spraying subassembly carries out the particle spraying, forms the particle picture layer.
The preparation device of the light guide plate with the light diffusion effect further comprises two auxiliary support plates, wherein the two auxiliary support plates are fixedly connected with the support seat and are respectively arranged on two sides of the lower roller.
Through the auxiliary supporting plate is right the light guide plate base material supports, guarantees when going up the gyro wheel with the lower gyro wheel extrudees, the both ends of light guide plate receive the support all the time, transmit smoothly after the extrusion to on the second transmission band.
Wherein, the spraying subassembly includes bracing piece and spraying head, the bracing piece with supporting seat fixed connection, and be located the top of supporting seat, the spraying head with bracing piece fixed connection, and be located the top of second transmission band.
And carrying out particle spraying on the diffusion layer by using the spray head.
The spraying assembly further comprises a cover body and an ultraviolet lamp, the cover body is fixedly connected with the supporting seat and is positioned on one side, away from the lower roller, of the spraying head, and the ultraviolet lamp is fixedly connected with the cover body and is positioned inside the cover body.
And carrying out curing treatment by scanning high-frequency ultraviolet light for the ultraviolet lamp to form the particle pattern layer.
The spraying assembly further comprises two shielding films, and the two shielding films are fixedly connected with the cover body and are respectively located on two sides of the cover body.
The cover body forms a relatively closed environment through the shielding film, so that the curing effect is improved.
According to the light guide plate with the light diffusion effect and the preparation device thereof, the cut light guide plate base material is conveyed between the upper roller and the lower roller through the first conveying belt, the light guide plate base material is extruded through roll printing on the surfaces of the upper roller and the lower roller to form the dot structure layer and the diffusion layer, and then particle spraying is carried out through the spraying assembly to form the particle pattern layer, the dot structure layer plays a role in light diffuse reflection, the diffusion layer is rough in surface and plays a role in primary diffusion, and the particle pattern layer plays a role in secondary diffusion, so that the picture and the optical effect are better.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a light guide plate with a light diffusion effect according to the present invention.
Fig. 2 is a cross-sectional view of a manufacturing apparatus of a light guide plate having a light diffusion effect according to the present invention.
Fig. 3 is an enlarged view of a portion of the structure of fig. 2 a according to the present invention.
The light guide plate comprises a 1-mesh point structure layer, a 2-light guide plate substrate, a 3-diffusion layer, a 4-particle layer, a 5-PE protective layer, a 6-spraying assembly, a 61-supporting rod, a 62-spraying head, a 63-cover body, a 64-ultraviolet lamp, a 65-shielding film, a 7-supporting seat, a 8-first conveying belt, a 9-supporting frame, a 10-second conveying belt, an 11-upper roller, a 12-lower roller and a 13-auxiliary supporting plate.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
Referring to fig. 1, the present invention provides a light guide plate with a light diffusion effect, where the light guide plate with the light diffusion effect includes a dot structure layer 1, a light guide plate substrate 2, a diffusion layer 3, and a particle pattern layer 4, the dot structure layer 1 is fixedly connected to the light guide plate substrate 2 and is located below the light guide plate substrate 2, the diffusion layer 3 is fixedly connected to the light guide plate substrate 2 and is located above the light guide plate substrate 2, and the particle pattern layer 4 is fixedly connected to the diffusion layer 3 and is located above the diffusion layer 3.
In this embodiment, after the light-emitting surface of the light guide plate substrate 2 is subjected to transfer printing, the diffusion layer 3 is formed, the diffusion layer 3 is a surface protrusion structure, the diameters of the protrusion structures are basically consistent in height and are uniformly distributed on the light-emitting surface, the protrusion structures in two adjacent rows are arranged in a staggered manner, the distance from the center of each protrusion part to the center of one circle of protrusion structures on the periphery is basically equal, the diameter of the rough structure is 50-150 um, and the structure height is 30-40 um; silica (SiO2), MMA, PC, PS particles and the like can be used as the base material of the diffusion particles, the refractive index of the material of the diffusion particles is higher than that of the material of the light guide plate, so that more light can be diffused and reflected by the light guide plate, the light effect is better, the thickness of the particle pattern layer 4 is 3% -5% of that of the base material 2 of the light guide plate, the size and the rule of the diffusion particles have irregularity, the diameter is 30 um-80 um, the spraying pattern of the diffusion particles can be adjusted, and the effects, the transmittance, the brightness and other performances of light diffusion at different positions can be adjusted by adjusting the material, the size and the pattern of the diffusion particles.
Further, the light guide plate with the light diffusion effect further comprises two PE protection layers 5, the two PE protection layers 5 are respectively and fixedly connected with the particle pattern layer 4 and the dot structure layer 1, one of the PE protection layers 5 is located below the dot structure layer 1, and the other PE protection layer 5 is located below the particle pattern layer 4.
In this embodiment, the light-colored PE protection film plays a role in protection, and facilitates the distinction of the light-emitting surface.
Referring to fig. 2 and 3, the present invention further provides a device for manufacturing the light guide plate with light diffusion effect, the device for manufacturing the light guide plate with light diffusion effect includes a supporting base 7, a first transmission belt 8, a supporting frame 9, a second transmission belt 10, an upper roller 11, a lower roller 12 and a spraying component 6, the first transmission belt 8 is movably connected with the supporting base 7 and is located above the supporting base 7, the supporting frame 9 is fixedly connected with the supporting base 7 and is located above the supporting base 7 and is located at one side of the first transmission belt 8, the upper roller 11 is rotatably connected with the supporting frame 9 and is located inside the supporting frame 9, the lower roller 12 is fixedly connected with the supporting frame 9 and is located below the upper roller 11, the second transmission belt 10 is fixedly connected with the supporting base 7, and is located one side of the supporting seat 7, and the spraying component 6 is fixedly connected with the supporting seat 7 and is located above the second conveying belt 10.
In this embodiment, go up gyro wheel 11 with lower gyro wheel 12 is inside to be provided with heating resistor for control process temperature, through first conveyer belt 8 will cut good light guide plate substrate 2 transport extremely go up gyro wheel 11 with between the lower gyro wheel 12, through go up the gyro wheel with the roll printing on lower gyro wheel surface is right light guide plate substrate 2 extrudees, forms site structural layer 1 with diffusion layer 3, the rethread spraying subassembly 6 carries out the particle spraying, forms particle picture layer 4.
Further, the device for manufacturing the light guide plate with the light diffusion effect further comprises two auxiliary support plates 13, wherein the two auxiliary support plates 13 are fixedly connected with the support base 7 and are respectively arranged on two sides of the lower roller 12.
In this embodiment, the auxiliary supporting plate 13 supports the light guide plate substrate 2, so as to ensure that the two ends of the light guide plate are always supported when the upper roller 11 and the lower roller 12 are extruded, and the extruded light guide plate is smoothly transmitted to the second transmission belt 10.
Further, the spraying assembly 6 comprises a supporting rod 61 and a spraying head 62, the supporting rod 61 is fixedly connected with the supporting seat 7 and is positioned above the supporting seat 7, the spraying head 62 is fixedly connected with the supporting rod 61 and is positioned above the second conveyor belt 10, the spraying assembly 6 further comprises a cover body 63 and an ultraviolet lamp 64, the cover body 63 is fixedly connected with the supporting seat 7 and is positioned on one side of the spraying head 62 away from the lower roller 12, and the ultraviolet lamp 64 is fixedly connected with the cover body 63 and is positioned inside the cover body 63; the spraying assembly 6 further comprises two shielding films 65, and the two shielding films 65 are respectively fixedly connected with the cover body 63 and are respectively located on two sides of the cover body 63.
In this embodiment, the particle coating is performed on the diffusion layer 3 by the coating head 62, and the particle coating layer 4 is formed by performing a curing process by the ultraviolet lamp 64 by high-frequency ultraviolet light scanning; the shielding film 65 forms a relatively closed environment for the cover 63, thereby improving the curing effect.
While the utility model has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the utility model.
Claims (7)
1. A light guide plate with light diffusion effect is characterized in that,
the light guide plate with the light diffusion effect comprises a mesh point structure layer, a light guide plate base material, a diffusion layer and a particle pattern layer, wherein the mesh point structure layer is fixedly connected with the light guide plate base material and is positioned below the light guide plate base material, the diffusion layer is fixedly connected with the light guide plate base material and is positioned above the light guide plate base material, and the particle pattern layer is fixedly connected with the diffusion layer and is positioned above the diffusion layer.
2. The light guide plate with light diffusion effect as claimed in claim 1,
the light guide plate with the light diffusion effect further comprises two PE protective layers, the two PE protective layers are fixedly connected with the particle image layer and the mesh point structure layer respectively, one of the PE protective layers is located below the mesh point structure layer, and the other PE protective layer is located below the particle image layer.
3. The manufacturing apparatus for manufacturing a light guide plate having a light diffusion effect as claimed in claim 2,
the preparation device of light guide plate with light diffusion effect includes supporting seat, first transmission band, support frame, second transmission band, goes up the gyro wheel, lower gyro wheel and spraying component, first transmission band with supporting seat swing joint, and be located the top of supporting seat, the support frame with supporting seat fixed connection, and be located the top of supporting seat, and be located one side of first transmission band, go up the gyro wheel with the support frame rotates to be connected, and is located the inside of support frame, lower gyro wheel with support frame fixed connection, and be located the below of support frame, the second transmission band with supporting seat fixed connection, and be located one side of supporting seat, spraying component with supporting seat fixed connection, and be located the top of second transmission band.
4. The manufacturing apparatus of light guide plate with light diffusion effect according to claim 3,
the preparation device of the light guide plate with the light diffusion effect further comprises two auxiliary supporting plates, wherein the two auxiliary supporting plates are fixedly connected with the supporting seat and are respectively arranged on two sides of the lower roller.
5. The manufacturing apparatus of light guide plate with light diffusion effect according to claim 4,
the spraying subassembly includes bracing piece and spraying head, the bracing piece with supporting seat fixed connection, and be located the top of supporting seat, the spraying head with bracing piece fixed connection, and be located the top of second transmission band.
6. The manufacturing apparatus of light guide plate with light diffusion effect according to claim 5,
the spraying assembly further comprises a cover body and an ultraviolet lamp, the cover body is fixedly connected with the supporting seat and is positioned on one side, away from the lower roller, of the spraying head, and the ultraviolet lamp is fixedly connected with the cover body and is positioned inside the cover body.
7. The manufacturing apparatus of light guide plate with light diffusing effect according to claim 6,
the spraying assembly further comprises two shielding films, and the two shielding films are fixedly connected with the cover body respectively and are located on two sides of the cover body respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122283731.XU CN215953900U (en) | 2021-09-18 | 2021-09-18 | Light guide plate with light diffusion effect and preparation device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122283731.XU CN215953900U (en) | 2021-09-18 | 2021-09-18 | Light guide plate with light diffusion effect and preparation device thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215953900U true CN215953900U (en) | 2022-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122283731.XU Active CN215953900U (en) | 2021-09-18 | 2021-09-18 | Light guide plate with light diffusion effect and preparation device thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215953900U (en) |
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2021
- 2021-09-18 CN CN202122283731.XU patent/CN215953900U/en active Active
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