CN107195763A - A kind of cavity lens of quantum dot solution filling and preparation method thereof - Google Patents
A kind of cavity lens of quantum dot solution filling and preparation method thereof Download PDFInfo
- Publication number
- CN107195763A CN107195763A CN201710318387.9A CN201710318387A CN107195763A CN 107195763 A CN107195763 A CN 107195763A CN 201710318387 A CN201710318387 A CN 201710318387A CN 107195763 A CN107195763 A CN 107195763A
- Authority
- CN
- China
- Prior art keywords
- quantum dot
- lens
- cavity
- dot solution
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002096 quantum dot Substances 0.000 title claims abstract description 98
- 238000002360 preparation method Methods 0.000 title 1
- 239000000843 powder Substances 0.000 claims abstract description 39
- 239000003960 organic solvent Substances 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000009792 diffusion process Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 28
- 150000001875 compounds Chemical class 0.000 claims description 12
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 claims description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 9
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 239000011521 glass Substances 0.000 claims description 9
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 claims description 6
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 claims description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 claims description 6
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052792 caesium Inorganic materials 0.000 claims description 4
- 239000011258 core-shell material Substances 0.000 claims description 4
- 229910052732 germanium Inorganic materials 0.000 claims description 4
- 229910052745 lead Inorganic materials 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
- 229910052701 rubidium Inorganic materials 0.000 claims description 4
- 229910052708 sodium Inorganic materials 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 3
- 229910003564 SiAlON Inorganic materials 0.000 claims description 3
- 229910052796 boron Inorganic materials 0.000 claims description 3
- 230000005284 excitation Effects 0.000 claims description 3
- 150000004767 nitrides Chemical class 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- UMJSCPRVCHMLSP-UHFFFAOYSA-N pyridine Natural products COC1=CC=CN=C1 UMJSCPRVCHMLSP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims 2
- 230000015572 biosynthetic process Effects 0.000 claims 2
- JTCFNJXQEFODHE-UHFFFAOYSA-N [Ca].[Ti] Chemical compound [Ca].[Ti] JTCFNJXQEFODHE-UHFFFAOYSA-N 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- -1 dichlorotoleune Chemical compound 0.000 claims 1
- 125000004836 hexamethylene group Chemical group [H]C([H])([*:2])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[*:1] 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000003754 machining Methods 0.000 claims 1
- 229910052759 nickel Inorganic materials 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000009738 saturating Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000009210 therapy by ultrasound Methods 0.000 abstract description 3
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000006862 quantum yield reaction Methods 0.000 description 5
- 239000011324 bead Substances 0.000 description 4
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 description 4
- 238000000295 emission spectrum Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- CAHQGWAXKLQREW-UHFFFAOYSA-N Benzal chloride Chemical compound ClC(Cl)C1=CC=CC=C1 CAHQGWAXKLQREW-UHFFFAOYSA-N 0.000 description 2
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000002159 nanocrystal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 238000000862 absorption spectrum Methods 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/855—Optical field-shaping means, e.g. lenses
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/01—Manufacture or treatment
Landscapes
- Led Device Packages (AREA)
- Luminescent Compositions (AREA)
Abstract
本发明公开了一种量子点溶液填充的腔体透镜，包括透镜本体，透镜本体底面中央垂直设有的锥形扩散孔；透镜本体中间设有半圆状的填充腔，底面上设有与填充腔底部端口相贯通的连接口；填充腔中填充有量子点溶液；本发明还提供一种量子点溶液填充的腔体透镜制作方法，所述方法包括以下步骤：施压成型，得到透镜毛坯；曲面加工，冷却脱模得到带有填充腔的光学透镜；将量子点粉溶于有机溶剂中，经过超声处理得到量子点溶液；将量子点溶液通过连接口注入到透镜的填充腔中，得到量子点溶液填充的腔体透镜。本发明解决了量子点荧光粉无法均匀分散在透镜内部的腔体内、且容易团聚失效的缺点、热稳定性差以及透镜出光效率低、背光源色域低等问题。
The invention discloses a cavity lens filled with a quantum dot solution, which comprises a lens body, a tapered diffusion hole vertically arranged in the center of the bottom surface of the lens body; A connection port through which the bottom port is connected; the filling cavity is filled with a quantum dot solution; the present invention also provides a method for manufacturing a cavity lens filled with a quantum dot solution, and the method includes the following steps: forming under pressure to obtain a lens blank; curved surface Processing, cooling and demoulding to obtain an optical lens with a filling cavity; dissolving quantum dot powder in an organic solvent, and obtaining a quantum dot solution through ultrasonic treatment; injecting the quantum dot solution into the filling cavity of the lens through the connection port to obtain quantum dots Solution filled cavity lens. The invention solves the problems that the quantum dot fluorescent powder cannot be evenly dispersed in the cavity inside the lens, and is easy to agglomerate and fail, poor thermal stability, low light extraction efficiency of the lens, and low color gamut of the backlight source.
Description
技术领域technical field
本发明属于透镜背光领域，尤其涉及一种量子点溶液填充的腔体透镜及其制作方法。The invention belongs to the field of lens backlights, in particular to a cavity lens filled with a quantum dot solution and a manufacturing method thereof.
背景技术Background technique
量子点(Quantum Dot，QD)又可以称为纳米晶，是一种把导带电子、价带空穴及激子在三个空间方向上束缚住的半导体纳米结构，通常由II－VI族或III－V族元素组成，粒径介于1～10nm之间，由于电子和空穴被量子限域，连续的能带结构变成具有分子特性的分立能级结构，受激后可以发射荧光。目前商业的量子点材料主要以CdSe为主，荧光量子产率为50％-80％，且含有Cd等有毒金属，极易对环境造成危害。因此，近两年一种新的量子点体系引起了人们的广泛关注，这种全无机钙钛矿材料，因为具有较宽的吸收谱和较窄的发射谱、很高的荧光量子产率(高达90％)、荧光波长可调且覆盖整个可见光波段、线宽窄等优点，有望可以在新一代的量子点显示和照明技术中扮演重要的角色。Quantum Dot (QD), also known as nanocrystal, is a semiconductor nanostructure that binds conduction band electrons, valence band holes, and excitons in three spatial directions. It is usually composed of II-VI or Composed of III-V elements, the particle size is between 1 and 10nm. Since electrons and holes are quantum-confined, the continuous energy band structure becomes a discrete energy level structure with molecular characteristics, and can emit fluorescence after being excited. At present, the commercial quantum dot materials are mainly CdSe, the fluorescence quantum yield is 50%-80%, and it contains toxic metals such as Cd, which is very easy to cause harm to the environment. Therefore, a new quantum dot system has attracted widespread attention in the past two years. This all-inorganic perovskite material has a wide absorption spectrum, a narrow emission spectrum, and a high fluorescence quantum yield ( Up to 90%), adjustable fluorescence wavelength and covering the entire visible light band, narrow line width and other advantages, it is expected to play an important role in the new generation of quantum dot display and lighting technology.
目前商业的量子点材料主要以CdSe为主，但是由于量子点材料很容易受温度、湿度的影响而导致失效，因此商业上主要将其做成量子点管和量子点膜这两种形式。其一，将量子点粉制成光学膜，填充在导光板或者液晶屏内，通过蓝光或UV背光灯珠激发，得到高色域白光。但是此种方法需要大量的荧光粉，且良品率低，难以实现大规模生产。其二，将量子点粉填充在空心玻璃管内，置于屏幕侧面，通过蓝光或UV背光灯珠激发，得到高色域白光。虽然价格便宜，技术成熟，但是很难达到目前市场上对于超薄、窄边的要求，不适合直下式背光。无论是用量子点粉填充玻璃管还是将其填充在光学透镜的腔体中，都难以保证量子点粉均匀分布。At present, commercial quantum dot materials are mainly CdSe, but because quantum dot materials are easily affected by temperature and humidity and cause failure, they are mainly made into two forms of quantum dot tubes and quantum dot films commercially. First, the quantum dot powder is made into an optical film, filled in a light guide plate or a liquid crystal screen, and excited by blue light or UV backlight beads to obtain white light with a high color gamut. However, this method requires a large amount of fluorescent powder, and the yield rate is low, so it is difficult to realize large-scale production. Second, the quantum dot powder is filled in a hollow glass tube, placed on the side of the screen, and excited by blue light or UV backlight beads to obtain white light with a high color gamut. Although the price is cheap and the technology is mature, it is difficult to meet the current market requirements for ultra-thin and narrow bezels, and it is not suitable for direct-lit backlights. Whether filling the glass tube with quantum dot powder or filling it in the cavity of an optical lens, it is difficult to ensure the uniform distribution of quantum dot powder.
传统的量子点材料为第Ⅱ主族与第Ⅵ主族中的元素形成的第一化合物、第Ⅲ主族与第Ⅴ主族中的元素形成的第二化合物中的任意一种，第一化合物或第二化合物中的多种包覆形成的核壳结构化合物或者掺杂纳米晶。The traditional quantum dot material is any one of the first compound formed by the elements in the main group II and the main group VI, the second compound formed by the elements in the main group III and the main group V, the first compound Or a core-shell structure compound or a doped nanocrystal formed by multiple coatings in the second compound.
1、以CdSe为主的传统量子点材料荧光量子产率只能达到50％-80％；1. The fluorescence quantum yield of traditional quantum dot materials mainly based on CdSe can only reach 50%-80%;
2、以CdSe为主的量子点材料，含有Cd重金属元素，不符合无毒绿色环保的要求；2. CdSe-based quantum dot materials contain Cd heavy metal elements, which do not meet the requirements of non-toxic and green environmental protection;
3、量子点荧光粉由于粒径很小，很容易发生团聚从而导致量子效率下降；3. Due to the small particle size of quantum dot phosphors, it is easy to agglomerate, resulting in a decrease in quantum efficiency;
4、量子点荧光粉很容易受到温湿度的影响而导致失效，不易保存；4. Quantum dot phosphors are easily affected by temperature and humidity and cause failure, and are not easy to store;
5、由于无法对荧光粉体的填充分布均匀性状态进行精确控制，导致出射光色彩不一致。5. Due to the inability to accurately control the uniformity of filling and distribution of the phosphor powder, the color of the emitted light is inconsistent.
发明内容Contents of the invention
本发明的目的在于克服现有技术存在的以上问题，提供一种量子点溶液填充的腔体透镜及其制作方法，采用一种新的量子点体系和全无机钙钛矿材料，将其溶解在有机溶剂并注入到玻璃透镜的腔体中，解决了量子点荧光粉无法均匀分散在透镜内部的腔体内、且容易团聚失效的缺点、热稳定性差以及透镜出光效率低、背光源色域低等问题。The purpose of the present invention is to overcome the above problems in the prior art, provide a cavity lens filled with quantum dot solution and its manufacturing method, adopt a new quantum dot system and all-inorganic perovskite material, dissolve it in The organic solvent is injected into the cavity of the glass lens, which solves the shortcomings of quantum dot phosphors that cannot be uniformly dispersed in the cavity inside the lens, and are prone to agglomeration and failure, poor thermal stability, low light extraction efficiency of the lens, and low backlight color gamut, etc. question.
为实现上述技术目的，达到上述技术效果，本发明通过以下技术方案实现：In order to achieve the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:
一种量子点溶液填充的腔体透镜，包括透镜本体，透镜本体顶部对称分布有两个出射面，两个出射面相交形成凹槽；A cavity lens filled with a quantum dot solution, including a lens body, two exit surfaces are symmetrically distributed on the top of the lens body, and the intersection of the two exit surfaces forms a groove;
所述透镜本体底部水平分布有底面，底面中央垂直设有的锥形扩散孔；The bottom of the lens body is horizontally distributed with a bottom surface, and the center of the bottom surface is vertically provided with a tapered diffusion hole;
所述透镜本体中间设有半圆状的填充腔，底面上设有与填充腔底部端口相贯通的连接口；A semicircular filling cavity is provided in the middle of the lens body, and a connection port connected to the bottom port of the filling cavity is provided on the bottom surface;
所述填充腔中填充有量子点溶液。The filling cavity is filled with quantum dot solution.
进一步地，所述出射面为半球形曲面或半椭球形曲面。Further, the outgoing surface is a hemispherical curved surface or a semi-ellipsoidal curved surface.
进一步地，所述透镜本体底部安装有LED芯片，LED芯片为蓝光芯片或紫光芯片，激发波长为380nm-470nm。Further, an LED chip is mounted on the bottom of the lens body, the LED chip is a blue light chip or a purple light chip, and the excitation wavelength is 380nm-470nm.
进一步地，所述透镜本体为折射式光学透镜，同时透镜本体为玻璃透镜。Further, the lens body is a refractive optical lens, and the lens body is a glass lens.
进一步地，所述量子点溶液由量子点粉和有机溶剂组成；Further, the quantum dot solution is composed of quantum dot powder and an organic solvent;
所述有机溶剂为正己烷、环己烷、正辛烷、甲苯、二氯甲苯、二氯甲烷、三氯甲烷、吡啶中的至少一种；The organic solvent is at least one of n-hexane, cyclohexane, n-octane, toluene, dichlorotoluene, methylene chloride, chloroform, and pyridine;
所述量子点粉采用全无机钙钛矿材料，该全无机钙钛矿材料包括第Ⅰ主族、第Ⅳ主族与第Ⅶ主族中的元素形成的三元化合物。The quantum dot powder adopts an all-inorganic perovskite material, and the all-inorganic perovskite material includes a ternary compound formed by elements in the main group I, the main group IV and the main group VII.
进一步地，所述全无机钙钛矿材料还包括由其他元素包覆形成的核壳结构或者掺杂有其他元素形成的纳米化合物。Further, the all-inorganic perovskite material also includes a core-shell structure formed by covering with other elements or a nano compound formed by doping with other elements.
进一步地，所述量子点粉的化学式为ABX3，其中A为Na、K、Rb、Cs，B为Si、Ge、Sn、Pb，X为Cl、Br、I。Further, the chemical formula of the quantum dot powder is ABX 3 , wherein A is Na, K, Rb, Cs, B is Si, Ge, Sn, Pb, and X is Cl, Br, I.
进一步地，所述填充腔内覆有量子点荧光粉，该量子点荧光粉为YAG粉或硅酸盐、氮化物荧光粉、KSF荧光粉、β-SiAlON中的至少一种。Further, the filling cavity is covered with quantum dot phosphor, and the quantum dot phosphor is at least one of YAG powder or silicate, nitride phosphor, KSF phosphor, and β-SiAlON.
本发明还提供一种量子点溶液填充的腔体透镜制作方法，所述方法包括以下步骤：The present invention also provides a method for manufacturing a cavity lens filled with a quantum dot solution, the method comprising the following steps:
S1：在无水无氧的环境中，将透镜原料和模具一起加热升温至透镜原料的软化点附近，利用模具对透镜原料施压成型，得到透镜毛坯；S1: In an anhydrous and oxygen-free environment, heat the lens material and the mold together to near the softening point of the lens material, and use the mold to press the lens material to form a lens blank;
S2：在透镜毛坯上经过镀镍处理后再用超精密加工机进行曲面加工，经过冷却脱模得到带有填充腔的光学透镜；S2: After nickel-plating on the lens blank, the ultra-precision processing machine is used to process the curved surface, and the optical lens with the filling cavity is obtained after cooling and demoulding;
S3：将量子点粉溶于有机溶剂中，经过超声处理得到量子点溶液；S3: dissolving the quantum dot powder in an organic solvent, and obtaining a quantum dot solution through ultrasonic treatment;
S4：将量子点溶液通过连接口注入到透镜的填充腔中，得到量子点溶液填充的腔体透镜。S4: injecting the quantum dot solution into the filling cavity of the lens through the connection port to obtain a cavity lens filled with the quantum dot solution.
进一步地，所述量子点粉的质量份数为4-20份，有机溶剂的质量份数为2-200份。Further, the mass fraction of the quantum dot powder is 4-20 parts, and the mass fraction of the organic solvent is 2-200 parts.
本发明的有益效果是：The beneficial effects of the present invention are:
1、本发明中量子点材料荧光量子产率可以达到90％以上，可以有效减少量子点粉的用量，且线宽窄，色域高达100％-150％；1. The fluorescence quantum yield of the quantum dot material in the present invention can reach more than 90%, which can effectively reduce the amount of quantum dot powder, and the line width is narrow, and the color gamut is as high as 100%-150%;
2、本发明中将量子点粉溶解在有机溶剂中，相比于量子点粉体直接填充光学透镜，量子点粉分散更均匀，表面积更大，有更多的光线穿过透镜来激发表面量子点，光源的发光效率更高；2. In the present invention, the quantum dot powder is dissolved in the organic solvent. Compared with the quantum dot powder directly filling the optical lens, the quantum dot powder is more uniformly dispersed, the surface area is larger, and more light passes through the lens to excite the surface quantum point, the luminous efficiency of the light source is higher;
3、本发明中以量子点粉溶液制成的腔体光学透镜，既能用于直下式LED背光，达到高色域、发光角度大且混光距离大等优点，又可以隔绝热源，减少热量对量子点粉的影响，提高成品灯珠的热稳定性，进而延长LED发光器件的使用寿命；3. The cavity optical lens made of quantum dot powder solution in the present invention can not only be used for direct-lit LED backlight, achieve the advantages of high color gamut, large light-emitting angle and large light mixing distance, but also can isolate heat source and reduce heat The impact on quantum dot powder improves the thermal stability of finished lamp beads, thereby prolonging the service life of LED light-emitting devices;
4、本发明中量子点由于自身的特性可以通过调控量子点材料的尺寸从而精确控制量子点的发射光谱和色纯度，进而能够发出颜色更纯、光转化效率更高的优质白光；4. Due to its own characteristics, quantum dots in the present invention can precisely control the emission spectrum and color purity of quantum dots by adjusting the size of quantum dot materials, and then can emit high-quality white light with purer color and higher light conversion efficiency;
5、本发明中玻璃透镜较PMMA透镜、PC透镜以及硅胶透镜等具有更优秀的光学特性参数、透光率高和耐高温的优点。5. Compared with PMMA lens, PC lens and silica gel lens, the glass lens in the present invention has the advantages of better optical characteristic parameters, high light transmittance and high temperature resistance.
附图说明Description of drawings
此处所说明的附图用来提供对本发明的进一步理解，构成本申请的一部分，本发明的示意性实施例及其说明用于解释本发明，并不构成对本发明的不当限定。在附图中：The accompanying drawings described here are used to provide a further understanding of the present invention and constitute a part of the application. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations to the present invention. In the attached picture:
图1是本发明中腔体透镜的结构示意图；Fig. 1 is the structural representation of cavity lens in the present invention;
图2是本发明中腔体透镜制作方法流程示意图。Fig. 2 is a schematic flow chart of the cavity lens manufacturing method in the present invention.
具体实施方式detailed description
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
如图1所示的一种量子点溶液填充的腔体透镜，包括透镜本体1，透镜本体1顶部对称分布有两个出射面2，两个出射面2相交形成凹槽，出射面2为半球形曲面或半椭球形曲面，呈现双球蝴蝶状；透镜本体1为折射式光学透镜，同时透镜本体1为玻璃透镜或其他透光率高且不与有机溶剂反应的透镜；A cavity lens filled with a quantum dot solution as shown in Figure 1, including a lens body 1, two exit surfaces 2 are symmetrically distributed on the top of the lens body 1, the two exit surfaces 2 intersect to form a groove, and the exit surface 2 is a hemisphere A curved surface or a semi-ellipsoidal curved surface, showing a double-sphere butterfly shape; the lens body 1 is a refractive optical lens, and the lens body 1 is a glass lens or other lenses with high light transmittance and does not react with organic solvents;
透镜本体1底部水平分布有底面5，底面5中央垂直设有的锥形扩散孔3；透镜本体1底部安装有LED芯片，LED芯片为蓝光芯片或紫光芯片，激发波长为380nm-470nm；The bottom of the lens body 1 is horizontally distributed with a bottom surface 5, and the center of the bottom surface 5 is vertically provided with a tapered diffusion hole 3; the bottom of the lens body 1 is equipped with an LED chip, the LED chip is a blue light chip or a purple light chip, and the excitation wavelength is 380nm-470nm;
透镜本体1中间设有半圆状的填充腔4，底面5上设有与填充腔4底部端口相贯通的连接口，连接口用封装胶来密封；A semicircular filling cavity 4 is provided in the middle of the lens body 1, and a connection port connected to the bottom port of the filling cavity 4 is provided on the bottom surface 5, and the connection port is sealed with an encapsulation glue;
填充腔4中填充有量子点溶液，填充腔4内还覆有量子点荧光粉，该量子点荧光粉为YAG粉或硅酸盐、氮化物荧光粉、KSF荧光粉、β-SiAlON中的至少一种。The filling chamber 4 is filled with a quantum dot solution, and the filling chamber 4 is also covered with a quantum dot phosphor, which is at least one of YAG powder or silicate, nitride phosphor, KSF phosphor, or β-SiAlON. A sort of.
其中，量子点溶液由量子点粉和有机溶剂组成；有机溶剂为正己烷、环己烷、正辛烷、甲苯、二氯甲苯、二氯甲烷、三氯甲烷、吡啶中的至少一种；量子点粉采用全无机钙钛矿材料，该全无机钙钛矿材料包括第Ⅰ主族、第Ⅳ主族与第Ⅶ主族中的元素形成的三元化合物，以及由其他元素包覆形成的核壳结构或者掺杂有其他元素形成的纳米化合物；量子点粉的化学式为ABX3，其中A为Na、K、Rb、Cs，B为Si、Ge、Sn、Pb，X为Cl、Br、I。Wherein, the quantum dot solution is composed of quantum dot powder and an organic solvent; the organic solvent is at least one of n-hexane, cyclohexane, n-octane, toluene, dichlorotoluene, methylene chloride, chloroform, and pyridine; The point powder adopts the all-inorganic perovskite material, which includes the ternary compound formed by the elements in the main group I, the main group IV and the main group VII, and the core formed by covering with other elements. Shell structure or nano-compound doped with other elements; the chemical formula of quantum dot powder is ABX 3 , where A is Na, K, Rb, Cs, B is Si, Ge, Sn, Pb, X is Cl, Br, I .
如图2所示的一种量子点溶液填充的腔体透镜制作方法，该方法包括以下步骤：A cavity lens manufacturing method filled with a quantum dot solution as shown in Figure 2, the method may further comprise the steps:
S1：在无水无氧的环境中，将透镜原料和模具一起加热升温至透镜原料的软化点附近，利用模具对透镜原料施压成型，得到透镜毛坯，透镜原料可以采用玻璃、塑料、树脂等透明材料；S1: In an anhydrous and oxygen-free environment, heat the lens material and the mold together to near the softening point of the lens material, and use the mold to press the lens material to form a lens blank. The lens material can be glass, plastic, resin, etc. transparent material;
S2：在透镜毛坯上经过镀镍处理后再用超精密加工机进行曲面加工，经过冷却脱模得到带有填充腔的光学透镜；S2: After nickel-plating on the lens blank, the ultra-precision processing machine is used to process the curved surface, and the optical lens with the filling cavity is obtained after cooling and demoulding;
S3：将4-20份质量的量子点粉溶于2-200份有机溶剂中，经过超声处理得到量子点溶液；S3: dissolving 4-20 parts of quantum dot powder in 2-200 parts of organic solvent, and obtaining a quantum dot solution through ultrasonic treatment;
S4：将量子点溶液通过连接口注入到透镜的填充腔中，得到量子点溶液填充的腔体透镜。S4: injecting the quantum dot solution into the filling cavity of the lens through the connection port to obtain a cavity lens filled with the quantum dot solution.
1、本发明中全无机钙钛矿材料为第Ⅰ主族、第Ⅳ主族与第Ⅶ主族中的元素形成的三元化合物，以及由其他元素包覆形成的核壳结构或者掺杂有其他元素形成的纳米化合物，其化学式为ABX3(A为Na、K、Rb、Cs；B为Si、Ge、Sn、Pb，X为Cl、Br、I)；以CsPbX3(X为Cl、Br、I)为主的的量子点材料荧光量子产率可以达到90％以上，因此可以减少量子点粉的用量，且线宽窄(半波宽大约为10-20nm左右)，色域高达100％-150％；1. The all-inorganic perovskite material in the present invention is a ternary compound formed by elements in the main group I, the main group IV and the main group VII, and a core-shell structure formed by covering other elements or doped with Nano compound formed by other elements, its chemical formula is ABX 3 (A is Na, K, Rb, Cs; B is Si, Ge, Sn, Pb, X is Cl, Br, I); with CsPbX 3 (X is Cl, Br, I)-based quantum dot material fluorescence quantum yield can reach more than 90%, so the amount of quantum dot powder can be reduced, and the line width is narrow (half-wave width is about 10-20nm), and the color gamut is as high as 100%. -150%;
2、本发明中将量子点粉溶解在有机溶剂中，相比于量子点粉体直接填充光学透镜，量子点粉分散更均匀，表面积更大，有更多的光线穿过透镜来激发表面量子点，光源的发光效率更高；2. In the present invention, the quantum dot powder is dissolved in the organic solvent. Compared with the quantum dot powder directly filling the optical lens, the quantum dot powder is more uniformly dispersed, the surface area is larger, and more light passes through the lens to excite the surface quantum point, the luminous efficiency of the light source is higher;
3、本发明中将以CsPbX3(X为Cl、Br、I)为主的量子点粉溶液制成的腔体光学透镜，既能用于直下式LED背光，达到高色域、发光角度大且混光距离大等优点，又可以隔绝热源，减少热量对量子点粉的影响，提高成品灯珠的热稳定性，进而延长LED发光器件的使用寿命；3. In the present invention, the cavity optical lens made of quantum dot powder solution based on CsPbX 3 (X is Cl, Br, I) can be used for direct-lit LED backlight, achieving high color gamut and large luminous angle Moreover, it has the advantages of large light mixing distance, and can isolate the heat source, reduce the influence of heat on the quantum dot powder, improve the thermal stability of the finished lamp bead, and prolong the service life of the LED light-emitting device;
4、本发明中量子点由于自身的特性可以通过调控量子点材料的尺寸从而精确控制量子点的发射光谱和色纯度，进而能够发出颜色更纯、光转化效率更高的优质白光；4. Due to its own characteristics, quantum dots in the present invention can precisely control the emission spectrum and color purity of quantum dots by adjusting the size of quantum dot materials, and then can emit high-quality white light with purer color and higher light conversion efficiency;
5、本发明中玻璃透镜较PMMA透镜、PC透镜以及硅胶透镜等具有更优秀的光学特性参数、透光率高和耐高温的优点。5. Compared with PMMA lens, PC lens and silica gel lens, the glass lens in the present invention has the advantages of better optical characteristic parameters, high light transmittance and high temperature resistance.
以上显示和描述了本发明的基本原理、主要特征和本发明的优点。本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the industry should understand that the present invention is not limited by the above-mentioned embodiments, and what described in the above-mentioned embodiments and the description only illustrates the principles of the present invention, and the present invention will also have other functions without departing from the spirit and scope of the present invention. Variations and improvements are possible, which fall within the scope of the claimed invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318387.9A CN107195763A (en) | 2017-05-08 | 2017-05-08 | A kind of cavity lens of quantum dot solution filling and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710318387.9A CN107195763A (en) | 2017-05-08 | 2017-05-08 | A kind of cavity lens of quantum dot solution filling and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107195763A true CN107195763A (en) | 2017-09-22 |
Family
ID=59873874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710318387.9A Pending CN107195763A (en) | 2017-05-08 | 2017-05-08 | A kind of cavity lens of quantum dot solution filling and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107195763A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514982A (en) * | 2021-04-12 | 2021-10-19 | 惠州市华星光电技术有限公司 | Quantum dot lens and backlight module |
| CN116413954A (en) * | 2021-12-30 | 2023-07-11 | 北京航空航天大学合肥创新研究院(北京航空航天大学合肥研究生院) | Lamp bead, light guide plate, diffusion plate, and preparation method and application of diffusion plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569558A (en) * | 2012-01-06 | 2012-07-11 | 华中科技大学 | Packaging method for realizing separation of fluorescent powder glue away from coating in light emitting diode (LED) package and application |
| CN102696123A (en) * | 2010-01-07 | 2012-09-26 | 首尔半导体株式会社 | Aspherical LED lens and light emitting device including the same |
| CN105226146A (en) * | 2015-09-28 | 2016-01-06 | 吉林大学 | Liquid quantum dot LED and preparation method thereof |
| CN106010518A (en) * | 2016-06-01 | 2016-10-12 | 中国科学院新疆理化技术研究所 | Copper-doped all-inorganic halogen perovskite fluorescent material and preparation method and application thereof |
-
2017
- 2017-05-08 CN CN201710318387.9A patent/CN107195763A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102696123A (en) * | 2010-01-07 | 2012-09-26 | 首尔半导体株式会社 | Aspherical LED lens and light emitting device including the same |
| CN102569558A (en) * | 2012-01-06 | 2012-07-11 | 华中科技大学 | Packaging method for realizing separation of fluorescent powder glue away from coating in light emitting diode (LED) package and application |
| CN105226146A (en) * | 2015-09-28 | 2016-01-06 | 吉林大学 | Liquid quantum dot LED and preparation method thereof |
| CN106010518A (en) * | 2016-06-01 | 2016-10-12 | 中国科学院新疆理化技术研究所 | Copper-doped all-inorganic halogen perovskite fluorescent material and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| JIZHONG SONG, ETAL: "Quantum Dot Light-Emitting Diodes Based on Inorganic Perovskite Cesium Lead Halides (CsPbX 3 )", 《ADVANCED MATERIALS》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113514982A (en) * | 2021-04-12 | 2021-10-19 | 惠州市华星光电技术有限公司 | Quantum dot lens and backlight module |
| US12189235B2 (en) | 2021-04-12 | 2025-01-07 | Huizhou China Star Optoelectronics Display Co., Ltd. | Quantum dot lens and backlight module |
| CN116413954A (en) * | 2021-12-30 | 2023-07-11 | 北京航空航天大学合肥创新研究院(北京航空航天大学合肥研究生院) | Lamp bead, light guide plate, diffusion plate, and preparation method and application of diffusion plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107093662A (en) | A kind of new full-inorganic perovskite quantum dot silica-gel lens and preparation method thereof | |
| CN105449078A (en) | White light LED and preparation method thereof | |
| CN108091752B (en) | A kind of white light LED and preparation method thereof | |
| CN107093661A (en) | A kind of new optical lens of full-inorganic perovskite quanta point material thin film coated and preparation method thereof | |
| CN105423161A (en) | A kind of preparation method of point light source and lens thereof | |
| CN103869391A (en) | Color reinforcing film, and utilization structure, utilization method and manufacturing method of the color reinforcing film | |
| CN102718492A (en) | Method for producing transparent ceramic fluorescence substrate used for LED | |
| CN108919558B (en) | Quantum dot color film structure of wedge-shaped substrate | |
| CN106972092B (en) | A kind of quantum spot white light LED of high-luminous-efficiency and preparation method thereof | |
| JP2022502832A (en) | Light emitting element manufacturing process and light emitting element | |
| CN107195763A (en) | A kind of cavity lens of quantum dot solution filling and preparation method thereof | |
| CN107870482A (en) | The side-edge type backlight for the CSP lamp beads that lighted based on dual chip one side | |
| CN106450011A (en) | Visible light second excitation-based high-color rendering index white-light quantum dot LED and preparation method thereof | |
| CN103325926B (en) | LED packaging structure used in on-board chip and fluorescent powder coating method thereof | |
| CN105140377A (en) | Quantum dot glass box, and fabrication method and application thereof | |
| CN105006509B (en) | Quantum dot LED encapsulation method and encapsulating structure | |
| CN107123727B (en) | A kind of quantum spot white light LED of low operating temperature and preparation method thereof | |
| CN102721003A (en) | LED fluorescent lampshade and manufacturing method thereof | |
| CN202791789U (en) | Light-emitting diode (LED) fluorescent lampshade | |
| CN107068815A (en) | A kind of quantum dot powder filled cavity lens and preparation method thereof | |
| CN203883042U (en) | White LED packaging structure capable of reducing color temperature drifting | |
| CN102496673A (en) | Light emitting diode packaging structure and packaging method thereof | |
| CN205447344U (en) | a point light source | |
| CN101022142A (en) | Packaging structure of light-emitting semiconductor component and manufacturing method thereof | |
| KR101618244B1 (en) | Method of fabricating a white light emitting device utilizing 3D printing, and a white light emitting device fabricated by the method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |