CN112180638A - Optical lens with microstructure and application thereof - Google Patents
Optical lens with microstructure and application thereof Download PDFInfo
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- CN112180638A CN112180638A CN202010962517.4A CN202010962517A CN112180638A CN 112180638 A CN112180638 A CN 112180638A CN 202010962517 A CN202010962517 A CN 202010962517A CN 112180638 A CN112180638 A CN 112180638A
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- top surface
- conical
- optical lens
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J4/00—Adhesives based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; adhesives, based on monomers of macromolecular compounds of groups C09J183/00 - C09J183/16
- C09J4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09J159/00 - C09J187/00
Abstract
The invention relates to the technical field of illumination, in particular to an optical lens with a microstructure and application thereof, wherein the optical lens comprises a lens body; the bottom of the lens body is provided with an accommodating cavity for placing a light source; the top surface of the accommodating cavity is provided with a light incident top surface; the side surface of the accommodating cavity is provided with a light incident side surface; the top surface of the lens body is provided with a light emergent top surface; the side surface of the lens body is provided with a light emergent side surface; the light emergent top surface is provided with a microstructure. The light of the light source enters the lens body from the light inlet side surface and the light inlet top surface, then one part of the light in the lens body is emitted from the light outlet side surface, and the other part of the light is emitted from the light outlet top surface after being reflected and refracted for multiple times through the microstructures, so that the optical lens emits uniform light.
Description
Technical Field
The invention relates to the technical field of illumination, in particular to an optical lens with a microstructure and application thereof.
Background
In recent years, light emitting diodes have been increasingly used as light sources for lighting devices instead of incandescent bulbs, compact fluorescent lamps, and fluorescent tubes, with their excellent light quality and high luminous efficiency.
However, since the light emitting diode is a point light source, how to uniformly distribute light from the light emitting diode becomes a problem. This problem is exacerbated when the leds are used as light sources for applications requiring uniform illumination, such as backlight modules for liquid crystal display panels.
Disclosure of Invention
The present invention is directed to overcoming the above-mentioned shortcomings of the prior art and providing an optical lens with a microstructure such that the lens emits uniform light.
The purpose of the invention is realized by the following technical scheme: an optical lens having a microstructure includes a lens body; the bottom of the lens body is provided with an accommodating cavity for placing a light source; the top surface of the accommodating cavity is provided with a light incident top surface; the side surface of the accommodating cavity is provided with a light incident side surface; the top surface of the lens body is provided with a light emergent top surface; the side surface of the lens body is provided with a light emergent side surface; the light emergent top surface is provided with a microstructure.
The invention is further arranged that the light-emitting side surface comprises a straight line part arranged at the bottom of the lens body, a first inclined part arranged by the straight line part in an inward inclined manner, a sawtooth part connected with the first inclined part and a second inclined part arranged by the sawtooth part in an outward inclined manner;
the light emergent top surface comprises a first conical part formed by inwards sinking the top of the lens body and a second conical part formed by inwards sinking the second conical part; the axis of the second conical part is coaxial with the axis of the first conical part.
The invention is further configured that the optical lens with the microstructure further comprises a conical reflecting piece arranged above the lens body; the conical surface of the conical reflecting piece is arranged above the light emergent top surface;
a gap is formed between the conical surface of the conical reflecting piece and the light emergent top surface; the axis of the conical reflecting piece, the axis of the second conical part and the axis of the first conical part are coaxially arranged.
The invention further provides that the saw-tooth part comprises a first saw-tooth and a second saw-tooth; one end of the first sawtooth is connected with the first inclined part; the other end of the first sawtooth is connected with one end of the second sawtooth; the other end of the second saw tooth is connected with the second inclined part.
The invention is further arranged that an arc surface is arranged between the light incident top surface and the light incident side surface.
The invention further provides that the microstructure is a sawtooth pattern.
The invention is further provided that the sawtooth angle of the sawtooth pattern is 45-75 degrees.
The invention is further provided that the saw tooth angle of the first saw tooth and the second saw tooth is 45-75 degrees.
The other purpose of the invention is realized by the following technical scheme: the utility model provides an application of optical lens on LCD module with microstructure, LCD module is the same with the prior art structure, in order to further improve even light effect, can improve the partial OCA optical cement that needs to use with current LCD module, make it have the light diffusion function, because the thickness of light diffusion membrane is limited, also be the refraction number of times of light is limited, consequently the use of light diffusion OCA optical cement can improve the optical path, thereby improve the refraction number of times, reduce the thickness of light diffusion membrane, be favorable to improving the luminousness and the frivolousization of LCD module.
The light-diffusing OCA optical cement comprises the following raw materials in parts by weight:
30-50 parts of polyacrylate
10-20 parts of methyl methacrylate
4-8 parts of hydroxypropyl methacrylate
Trimethylolpropane triacrylate 8-10 weight portions
8-10 parts of tripropylene glycol diacrylate
20-30 parts of light diffusant
1-2 parts of a photoinitiator;
wherein the polyacrylate is prepared by the following method: mixing 4-8 parts by weight of butyl acrylate, 4-8 parts by weight of methyl methacrylate, 4-6 parts by weight of acrylic acid, 4-6 parts by weight of glycidyl methacrylate and 0.1-0.2 part by weight of dibenzoyl peroxide, heating to 65-75 ℃, and reacting for 2-5 hours to obtain the polyacrylate;
the light diffusion agent is prepared by the following method:
(1) heating deionized water to 80-90 ℃, adding trimethylolpropane triacrylate, span-60 and tween-60 into the vinyl-terminated silicone oil, uniformly stirring, heating to 80-90 ℃, gradually adding deionized water under the stirring condition of 10000-12000r/min, and then reducing the temperature to room temperature under the stirring condition of 500-700r/min to obtain a nano silicone oil emulsion; wherein the weight ratio of the deionized water to the vinyl-terminated silicone oil to the trimethylolpropane triacrylate to the span-60 to the tween-60 is 60-80:20-30:1-3:5-9:5-9, the viscosity of the vinyl-terminated silicone oil is 2000-3000cs, and the vinyl content is 0.2-0.3 wt%;
(2) placing the nano silicone oil emulsion in a cobalt source irradiation device for irradiation, wherein the irradiation dose is 20-30kGy, then adding nano silicon dioxide, and performing spray drying, wherein the spray pressure value is 0.1-0.2MPa, the spray inlet temperature is 130-150 ℃, and the spray outlet temperature is 50-70 ℃ to obtain the light diffusant; the weight ratio of the nano silicon dioxide to the nano silicone oil emulsion is 0.2-0.6:10, and the particle size of the nano silicon dioxide is 20-30 nm.
The nano o/w emulsion is formed by a phase inversion method, colloidal particles have a nano size after irradiation crosslinking, 100-plus 150-nm organic silicon particles are formed after spray drying, the light diffusion agent takes the organic silicon particles as cores, a small amount of nano silicon dioxide is loaded on the surfaces of the organic silicon particles, the organic silicon particles can be used as a separant of the nano silicon dioxide to improve the dispersibility of the nano silicon dioxide, meanwhile, the organic silicon particles also have a good light diffusion function, and can play a remarkable light diffusion role by cooperating with the small amount of nano silicon dioxide, so that the haze is improved, and the influence on the light transmittance is reduced; in addition, the addition of the light diffusion agent can reduce the shrinkage rate of the optical cement and improve the peeling strength of the optical cement.
The invention further provides that the photoinitiator is at least one of TPO, 1173 and 184.
The invention has the beneficial effects that: the light of the light source enters the lens body from the light inlet side surface and the light inlet top surface, then one part of the light in the lens body is emitted from the light outlet side surface, and the other part of the light is emitted from the light outlet top surface after being reflected and refracted for multiple times through the microstructures, so that the optical lens emits uniform light.
Drawings
The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived on the basis of the following drawings without inventive effort.
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a partial enlarged view of portion A of FIG. 1;
FIG. 3 is a light path diagram after the conical reflector is hidden in the present invention;
FIG. 4 is a light path diagram of the present invention;
FIG. 5 is a light intensity distribution plot of the present invention;
wherein: 1. a lens body; 2. an accommodating chamber; 21. a light incident top surface; 22. a light incident side surface; 23. an arc-shaped surface; 3. a microstructure; 41. a straight portion; 42. a first inclined portion; 43. a serration; 44. a second inclined portion; 51. a first conical portion; 52. a second conical portion; 6. a conical reflector; 61. a gap; 71. a first saw tooth; 72. and a second saw tooth.
Detailed Description
The invention is further described with reference to the following examples.
Example 1
As can be seen from fig. 1 to 5, the optical lens with microstructures 3 of the present embodiment includes a lens body 1; the bottom of the lens body 1 is provided with an accommodating cavity 2 for placing a light source; the top surface of the accommodating cavity 2 is provided with a light incident top surface 21; the side surface of the accommodating cavity 2 is provided with a light incident side surface 22; the top surface of the lens body 1 is provided with a light emergent top surface; the side surface of the lens body 1 is provided with a light emergent side surface; the light emergent top surface is provided with a microstructure 3.
Specifically, in the optical lens with the microstructure 3 of the present embodiment, the light source is placed in the accommodating cavity 2, the light of the light source enters the lens body 1 from the light-entering side surface 22 and the light-entering top surface 21, then a part of the light in the lens body 1 exits from the light-exiting side surface, and another part of the light exits from the light-exiting top surface after being reflected and refracted for multiple times by the microstructure 3, so that the optical lens emits uniform light.
In the optical lens having the microstructures 3 of the present embodiment, the light exit side surface includes a straight portion 41 disposed at the bottom of the lens body 1, a first inclined portion 42 inclined inward from the straight portion 41, a saw tooth portion 43 connected to the first inclined portion 42, and a second inclined portion 44 inclined outward from the saw tooth portion 43;
the light emergent top surface comprises a first conical part 51 formed by inwards sinking the top of the lens body 1 and a second conical part 52 formed by inwards sinking the second conical part 52; the axis of the second conical portion 52 is coaxial with the axis of the first conical portion 51.
Specifically, as shown in fig. 3, in the present embodiment, by providing the first inclined portion 42, the sawtooth portion 43, the second inclined portion 44, the first conical portion 51, and the second conical portion 52, the light source can emit light rays that are originally irradiated to the center of the lens body 1 at more angles after multiple reflections and refractions, thereby achieving the effect of light uniformization.
In the optical lens with the microstructure 3 of this embodiment, the optical lens with the microstructure 3 further includes a conical reflector 6 disposed above the lens body 1; the conical surface of the conical reflector 6 is arranged above the light emergent top surface;
a gap 61 is formed between the conical surface of the conical reflecting piece 6 and the light emergent top surface; the axis of the conical reflector 6, the axis of the second conical portion 52, and the axis of the first conical portion 51 are coaxially disposed.
Specifically, as shown in fig. 4, in use, light emitted from the light source enters the lens body 1 through the light entrance top surface 21 and the light entrance side surface 22, and is transmitted out through the light exit top surface and the light exit side surface after being reflected and refracted for multiple times.
And the light emitted from the light exit top surface passes through the gap 61 and the cone-shaped reflecting member so that a part of the light is reflected laterally and upwardly, thereby widening the illumination angle of the light source and obtaining satisfactory light distribution of the light source, the light emitted from the light source can have uniform luminous intensity in a large illumination range as shown in fig. 5, wherein the illumination angle can reach 180 degrees.
In the optical lens having the microstructure 3 of the embodiment, the sawtooth portion 43 includes a first sawtooth 71 and a second sawtooth 72; one end of the first saw tooth 71 is connected with the first inclined part 42; the other end of the first sawtooth 71 is connected with one end of the second sawtooth 72; the other end of the second saw tooth 72 is connected to the second inclined portion 44. Through the arrangement, light rays can be emitted from the lens body 1 at more angles, so that the light uniformity is enhanced.
In the optical lens with the microstructure 3 of this embodiment, an arc surface 23 is disposed between the light incident top surface 21 and the light incident side surface 22. With the above arrangement, light can enter the lens body 1 at more angles, thereby enhancing light uniformity.
In the optical lens having the microstructure 3 in this embodiment, the microstructure 3 is a sawtooth pattern. In the optical lens with the microstructure 3 of this embodiment, the sawtooth angle of the sawtooth pattern is 45 degrees to 75 degrees. The data is set, and experiments show that the light homogenizing performance can be obviously improved, and the light homogenizing performance can be improved by 15%.
In the optical lens having the microstructure 3 of the embodiment, the sawtooth angles of the first sawtooth 71 and the second sawtooth 72 are 45 degrees to 75 degrees. The data is set, and experiments show that the light homogenizing performance can be obviously improved, and the light homogenizing performance can be improved by 15%.
Example 2
The utility model provides a liquid crystal display module assembly, the same with prior art structure, including backlight unit and display module assembly, backlight unit adopts embodiment 1 an optical lens with microstructure 3, backlight unit or display module assembly's part optical cement adopts the light diffusion OCA optical cement, the light diffusion OCA optical cement includes the raw materials of following parts by weight:
30 parts of polyacrylate
Methyl methacrylate 10 parts
4 parts of hydroxypropyl methacrylate
Trimethylolpropane triacrylate 8 parts
8 parts of tripropylene glycol diacrylate
20 portions of light diffusant
1 part of photoinitiator;
wherein the polyacrylate is prepared by the following method: mixing 4 parts by weight of butyl acrylate, 4 parts by weight of methyl methacrylate, 4 parts by weight of acrylic acid, 4 parts by weight of glycidyl methacrylate and 0.1 part by weight of dibenzoyl peroxide, heating to 65 ℃, and reacting for 2 hours to obtain the polyacrylate;
the light diffusion agent is prepared by the following method:
(1) heating deionized water to 80 ℃, adding trimethylolpropane triacrylate, span-60 and tween-60 into the vinyl-terminated silicone oil, uniformly stirring, heating to 80 ℃, gradually adding deionized water under the stirring condition of 10000r/min, and then reducing the temperature to room temperature under the stirring condition of 500r/min to obtain a nano silicone oil emulsion; wherein the weight ratio of the deionized water to the terminal vinyl silicone oil to the trimethylolpropane triacrylate to the span-60 to the tween-60 is 60:20:1:5:5, the viscosity of the terminal vinyl silicone oil is 2000cs, and the vinyl content is 0.2 wt%;
(2) placing the nano silicone oil emulsion in a cobalt source irradiation device for irradiation, wherein the irradiation dose is 20kGy, then adding nano silicon dioxide, and performing spray drying, wherein the spray pressure value is 0.1MPa, the spray inlet temperature is 130 ℃, and the spray outlet temperature is 50 ℃, so as to obtain the light diffusant; the weight ratio of the nano silicon dioxide to the nano silicone oil emulsion is 0.2:10, and the particle size of the nano silicon dioxide is 20 nm.
The photoinitiator is TPO.
Example 3
This example differs from example 2 in that:
the light-diffusing OCA optical cement comprises the following raw materials in parts by weight:
50 parts of polyacrylate
20 parts of methyl methacrylate
8 parts of hydroxypropyl methacrylate
10 parts of trimethylolpropane triacrylate
10 parts of tripropylene glycol diacrylate
30 portions of light diffusant
2 parts of a photoinitiator;
wherein the polyacrylate is prepared by the following method: mixing 8 parts by weight of butyl acrylate, 8 parts by weight of methyl methacrylate, 6 parts by weight of acrylic acid, 6 parts by weight of glycidyl methacrylate and 0.2 part by weight of dibenzoyl peroxide, heating to 75 ℃, and reacting for 5 hours to obtain the polyacrylate;
the light diffusion agent is prepared by the following method:
(1) heating deionized water to 90 ℃, adding trimethylolpropane triacrylate, span-60 and tween-60 into the vinyl-terminated silicone oil, uniformly stirring, heating to 90 ℃, gradually adding deionized water under the stirring condition of 12000r/min, and then reducing the temperature to room temperature under the stirring condition of 700r/min to obtain a nano silicone oil emulsion; wherein the weight ratio of the deionized water to the terminal vinyl silicone oil to the trimethylolpropane triacrylate to the span-60 to the tween-60 is 80:30:3:9:9, the viscosity of the terminal vinyl silicone oil is 3000cs, and the vinyl content is 0.3 wt%;
(2) placing the nano silicone oil emulsion in a cobalt source irradiation device for irradiation, wherein the irradiation dose is 30kGy, then adding nano silicon dioxide, and performing spray drying, wherein the spray pressure value is 0.2MPa, the spray inlet temperature is 150 ℃, and the spray outlet temperature is 70 ℃ to obtain the light diffusant; the weight ratio of the nano silicon dioxide to the nano silicone oil emulsion is 0.6:10, and the particle size of the nano silicon dioxide is 30 nm.
The photoinitiator is TPO.
Example 4
The light-diffusing OCA optical cement comprises the following raw materials in parts by weight:
40 parts of polyacrylate
15 parts of methyl methacrylate
6 parts of hydroxypropyl methacrylate
Trimethylolpropane triacrylate 9 parts
9 parts of tripropylene glycol diacrylate
25 parts of light diffusant
1.5 parts of a photoinitiator;
wherein the polyacrylate is prepared by the following method: mixing 6 parts by weight of butyl acrylate, 6 parts by weight of methyl methacrylate, 5 parts by weight of acrylic acid, 5 parts by weight of glycidyl methacrylate and 0.15 part by weight of dibenzoyl peroxide, heating to 70 ℃, and reacting for 3.5 hours to obtain the polyacrylate;
the light diffusion agent is prepared by the following method:
(1) heating deionized water to 85 ℃, adding trimethylolpropane triacrylate, span-60 and tween-60 into the vinyl-terminated silicone oil, uniformly stirring, heating to 85 ℃, gradually adding deionized water under the stirring condition of 11000r/min, and then reducing the temperature to room temperature under the stirring condition of 600r/min to obtain a nano silicone oil emulsion; wherein the weight ratio of the deionized water to the terminal vinyl silicone oil to the trimethylolpropane triacrylate to the span-60 to the tween-60 is 70:25:2:7:7, the viscosity of the terminal vinyl silicone oil is 500cs, and the vinyl content is 0.25 wt%;
(2) placing the nano silicone oil emulsion in a cobalt source irradiation device for irradiation, wherein the irradiation dose is 25kGy, then adding nano silicon dioxide, and performing spray drying, wherein the spray pressure value is 0.15MPa, the spray inlet temperature is 140 ℃, and the spray outlet temperature is 60 ℃, thus obtaining the light diffusant; the weight ratio of the nano silicon dioxide to the nano silicone oil emulsion is 0.4:10, and the particle size of the nano silicon dioxide is 25 nm.
The photoinitiator is TPO.
Comparative example 1
This comparative example differs from example 4 in that:
the light-diffusing OCA optical cement comprises the following raw materials in parts by weight:
40 parts of polyacrylate
15 parts of methyl methacrylate
6 parts of hydroxypropyl methacrylate
Trimethylolpropane triacrylate 9 parts
9 parts of tripropylene glycol diacrylate
And 1.5 parts of a photoinitiator.
Comparative example 2
This comparative example differs from example 4 in that:
the light diffuser is a commercially available conventional PMMA light diffuser.
Comparative example 3
This comparative example differs from example 4 in that:
the light diffusion agent is prepared by the following method:
(1) heating deionized water to 85 ℃, adding trimethylolpropane triacrylate, span-60 and tween-60 into the vinyl-terminated silicone oil, uniformly stirring, heating to 85 ℃, gradually adding deionized water under the stirring condition of 11000r/min, and then reducing the temperature to room temperature under the stirring condition of 600r/min to obtain a nano silicone oil emulsion; wherein the weight ratio of the deionized water to the terminal vinyl silicone oil to the trimethylolpropane triacrylate to the span-60 to the tween-60 is 70:25:2:7:7, the viscosity of the terminal vinyl silicone oil is 500cs, and the vinyl content is 0.25 wt%;
(2) and (3) placing the nano silicone oil emulsion in a cobalt source irradiation device for irradiation, wherein the irradiation dose is 25kGy, and performing spray drying, wherein the spray pressure value is 0.15MPa, the spray inlet temperature is 140 ℃, and the spray outlet temperature is 60 ℃ to obtain the light diffusant.
The application method of the light-diffusion OCA optical adhesive is generally the same as that of the common OCA optical adhesive, the components of the optical adhesive are mixed and then coated on a release film for curing, and the release film is peeled off when in use. The thickness of the optical cement is controlled to 150 μm, and then the performance tests of peel strength, light transmittance and haze are performed, and the test results are as follows:
| peel strength/gf/25 mm | Transmittance (a) | Haze/% | |
| Example 4 | 2000 | 94.1 | 89.1 |
| Comparative example 1 | 1800 | 97.3 | 2.3 |
| Comparative example 2 | 1500 | 91.7 | 80.3 |
| Comparative example 3 | 1700 | 95.8 | 83.5 |
Comparative example 1 is a common OCA optical cement without adding a light diffusion agent, and the test result of the comparative example 1 shows that the acrylic polymer optical cement system formed by the selected acrylic monomer has better comprehensive performance; comparative example 2 a conventional PMMA light diffuser was added based on comparative example 1, although haze was significantly improved, peel strength and transmittance were significantly reduced; comparative example 3 in which the silicone particles of the present invention were used as a light diffuser, it can be seen that the addition of the silicone particles alone still causes a decrease in peel strength, but the light transmittance and haze are significantly improved over those of the conventional PMMA light diffuser; although a small amount of silica is added in embodiment 4 of the invention to cause the decrease of the light transmittance, the increase of the haze is significant, and the peeling strength of the optical cement can be improved by virtue of the nano-size effect of the nano-silica, so that the light-diffusing OCA optical cement of the invention has better practical performance, and can be matched with the optical lens with the microstructure 3 of the invention to improve the light-homogenizing performance of the liquid crystal display module.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. An optical lens having a microstructure, characterized in that: comprises a lens body (1); the bottom of the lens body (1) is provided with an accommodating cavity (2) for placing a light source; the top surface of the accommodating cavity (2) is provided with a light incident top surface (21); a light incident side surface (22) is arranged on the side surface of the accommodating cavity (2); the top surface of the lens body (1) is provided with a light emergent top surface; the side surface of the lens body (1) is provided with a light emergent side surface; the light emergent top surface is provided with a microstructure (3).
2. An optical lens having a microstructure according to claim 1, wherein: the light emergent side surface comprises a straight line part (41) arranged at the bottom of the lens body (1), a first inclined part (42) arranged by the straight line part (41) in an inward inclined mode, a sawtooth part (43) connected with the first inclined part (42) and a second inclined part (44) arranged by the sawtooth part (43) in an outward inclined mode;
the light emergent top surface comprises a first conical part (51) formed by inwards sinking the top of the lens body (1) and a second conical part (52) formed by inwards sinking the second conical part (52); the axis of the second conical portion (52) is coaxial with the axis of the first conical portion (51).
3. An optical lens having a microstructure according to claim 2, wherein: the optical lens with the microstructure also comprises a conical reflecting piece (6) arranged above the lens body (1); the conical surface of the conical reflecting piece (6) is arranged above the light emergent top surface;
a gap (61) is arranged between the conical surface of the conical reflecting piece (6) and the light emergent top surface; the axis of the conical reflector (6), the axis of the second conical part (52) and the axis of the first conical part (51) are coaxially arranged.
4. An optical lens having a microstructure according to claim 2, wherein: the saw tooth portion (43) comprises a first saw tooth (71) and a second saw tooth (72); one end of the first saw tooth (71) is connected with the first inclined part (42); the other end of the first saw tooth (71) is connected with one end of the second saw tooth (72); the other end of the second saw tooth (72) is connected with the second inclined part (44).
5. An optical lens having a microstructure according to claim 1, wherein: an arc surface (23) is arranged between the light incident top surface (21) and the light incident side surface (22).
6. An optical lens having a microstructure according to claim 1, wherein: the microstructure (3) is a sawtooth pattern.
7. An optical lens having a microstructure according to claim 6, wherein: the sawtooth angle of the sawtooth pattern is 45-75 degrees.
8. An optical lens having a microstructure according to claim 4, wherein: the sawtooth angle of the first sawtooth (71) and the second sawtooth (72) is 45-75 degrees.
9. Use of an optical lens with a microstructure according to claim 1, characterised in that: the liquid crystal display module is applied to the liquid crystal display module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010962517.4A CN112180638A (en) | 2020-09-14 | 2020-09-14 | Optical lens with microstructure and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010962517.4A CN112180638A (en) | 2020-09-14 | 2020-09-14 | Optical lens with microstructure and application thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113985651A (en) * | 2021-10-19 | 2022-01-28 | 深圳创维－Rgb电子有限公司 | Uniform light lens and backlight module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030235050A1 (en) * | 2002-06-24 | 2003-12-25 | West Robert S. | Side emitting led and lens |
| CN103244871A (en) * | 2013-04-28 | 2013-08-14 | 京东方科技集团股份有限公司 | Direct type backlight module and liquid crystal display device |
| CN204164945U (en) * | 2014-10-11 | 2015-02-18 | 广州毅昌科技股份有限公司 | The LED lens that a kind of hot spot uniformity is high |
| CN104748069A (en) * | 2013-12-30 | 2015-07-01 | 鸿富锦精密工业（深圳）有限公司 | Lens set and light source module using lens set |
| CN204717600U (en) * | 2015-07-09 | 2015-10-21 | 成都欧盛光电科技有限公司 | A kind of wide-angle luminous lens |
| US20150300595A1 (en) * | 2014-04-16 | 2015-10-22 | Hon Hai Precision Industry Co., Ltd. | Lens for light emitting diode and led module having the lens |
-
2020
- 2020-09-14 CN CN202010962517.4A patent/CN112180638A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030235050A1 (en) * | 2002-06-24 | 2003-12-25 | West Robert S. | Side emitting led and lens |
| CN103244871A (en) * | 2013-04-28 | 2013-08-14 | 京东方科技集团股份有限公司 | Direct type backlight module and liquid crystal display device |
| CN104748069A (en) * | 2013-12-30 | 2015-07-01 | 鸿富锦精密工业（深圳）有限公司 | Lens set and light source module using lens set |
| US20150300595A1 (en) * | 2014-04-16 | 2015-10-22 | Hon Hai Precision Industry Co., Ltd. | Lens for light emitting diode and led module having the lens |
| CN204164945U (en) * | 2014-10-11 | 2015-02-18 | 广州毅昌科技股份有限公司 | The LED lens that a kind of hot spot uniformity is high |
| CN204717600U (en) * | 2015-07-09 | 2015-10-21 | 成都欧盛光电科技有限公司 | A kind of wide-angle luminous lens |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113985651A (en) * | 2021-10-19 | 2022-01-28 | 深圳创维－Rgb电子有限公司 | Uniform light lens and backlight module |
| WO2023065527A1 (en) * | 2021-10-19 | 2023-04-27 | 深圳创维－Rgb电子有限公司 | Light uniformizing lens and backlight module |
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