CN105423172A - Color temperature adjustable LED (Light Emitting Diode) lamp based on quantum dots - Google Patents
Color temperature adjustable LED (Light Emitting Diode) lamp based on quantum dots Download PDFInfo
- Publication number
- CN105423172A CN105423172A CN201610027888.7A CN201610027888A CN105423172A CN 105423172 A CN105423172 A CN 105423172A CN 201610027888 A CN201610027888 A CN 201610027888A CN 105423172 A CN105423172 A CN 105423172A
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- China
- Prior art keywords
- quantum dot
- lenticule
- led
- led chip
- nano
- 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 54
- 239000003086 colorant Substances 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 8
- 230000001105 regulatory effect Effects 0.000 claims abstract description 4
- UHYPYGJEEGLRJD-UHFFFAOYSA-N cadmium(2+);selenium(2-) Chemical compound [Se-2].[Cd+2] UHYPYGJEEGLRJD-UHFFFAOYSA-N 0.000 claims description 3
- 238000003491 array Methods 0.000 abstract 2
- 239000000463 material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S2/00—Systems of lighting devices, not provided for in main groups F21S4/00 - F21S10/00 or F21S19/00, e.g. of modular construction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/04—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a quantum effect structure or superlattice, e.g. tunnel junction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
Abstract
The invention relates to a color temperature adjustable LED (Light Emitting Diode) lamp based on quantum dots. A liquid zoom lens is used as a micro lens (1), the quantum dots (2) are deposited on an LED chip (3) from left to right in sequence according to the size, so as to form quantum dot arrays of different sizes, the micro lens (1) covers the quantum dot arrays, a transparent housing (4) covers the upper end of the LED chip (3), and a positive electrode (5) and a negative electrode (6) are respectively connected with the LED chip (3) to be led to outside; transparent electrodes (7) on both ends of the micro lens (1) are communicated with an external circuit through thin conducting wires, the shape of the micro lens is changed by regulating voltage applied to the transparent electrodes (7), so as to control the luminous angle of light of different colors, and the color temperature adjustment of the LED lamp is realized. The LED lamp has the characteristics of high color temperature adjustment and luminous efficiency, good stability and simple structure.
Description
Technical field
The invention provides a kind of adjustable color LED based on quantum dot, belong to Application Optics technical field.
Background technology
What the LED of extensive use in the market adopted is that blue-light LED chip adds the fluorescent material of different colours to send the light of different-colour, but this method well just can not regulate colour temperature again once LED.What we were the most frequently used is white light LEDs, the white light sent by this method is because lacking red composition, colour rendering index is on the low side, also can produce the defects such as Halo effect (the scattering optic angle distribution of directive LED bright dipping and fluorescent material is different) simultaneously, easily there is lan settings, produce error with the colour temperature of anticipation.In use there is the technical problems such as aging in fluorescent material in addition, causes luminous efficiency and color purity decline.
The invention provides a kind of adjustable color LED based on quantum dot.Adopt focus liquid system to make microlens array, the quantum dot of different size replaces the fluorescent material of different colours.The quantum dot of different size sends the light of different colours under the exciting of blue light, the light of different colours can diffuse to all directions by microlens array, what change different colours light by regulating the lenticule on different quantum dot disperses direction, realizes the adjustment to colour temperature.Not only solve the problem that existing LED can not regulate colour temperature like this, also enhance the performance such as colour rendering index and luminous efficiency of LED.
Summary of the invention
The object of the present invention is to provide a kind of adjustable color LED based on quantum dot.This LED not only can regulate different-colour, and luminous efficiency is high, good stability, has fabulous application prospect in solid state lighting field.
Technical scheme of the present invention is:
Described a kind of adjustable color LED based on quantum dot, it is characterized in that: adopt liquid zoom lens as lenticule (1), quantum dot (2) is from left to right deposited in LED chip (3) by size successively, form different size quantum dot array, quantum dot array is covered with lenticule (1), transparent outer cover (4) covers on LED chip (3) upper end, and positive electrode (5) and negative electrode (6) are connected with LED chip (3) respectively and are drawn out to outside; The transparency electrode (7) at lenticule (1) two ends is communicated with external circuit by thin wire, by regulating the voltage be applied in transparency electrode (7) to change the lighting angle that lenticular shape controls different colours light, realize the adjustment of LED colour temperature.
Described a kind of adjustable color LED based on quantum dot, it is characterized in that: lenticule (1) is made up of the semicircle column type liquid zoom lens based on electrowetting, a lenticule is all covered with above the quantum dot of different size, separate between each lenticule (1), being communicated with external circuit by thin wire with transparency electrode (7) in each lenticule (1), is lenticule (1) power supply.
Described a kind of adjustable color LED based on quantum dot, it is characterized in that: LED chip (3) is InGaN blue-light LED chip, the quantum dot of the CdSe/CdS/ZnS nucleocapsid structure that quantum dot (2) is different size, under the exciting of 460 nano blue lights, the quantum dot of 2.5 nano-scales inspires the purple light of 380 nanometers, the quantum dot of 3.3 nano-scales inspires the blue light of 440 nanometers, the quantum dot of 4.7 nano-scales inspires the gold-tinted of 575 nanometers, and the quantum dot of 5.8 nano-scales inspires the ruddiness of 620 nanometers.
Accompanying drawing explanation
Fig. 1 is the adjustable color LED schematic diagram based on quantum dot;
Fig. 2 looks down schematic diagram based on the adjustable color LED of quantum dot;
Fig. 3 is lenticule schematic diagram.
In Fig. 2: (9) are the quantum dot sending out 380 nano ultraviolets, (10) are the quantum dot sending out 440 nano blue lights, and (11) are the quantum dot sending out 575 nanometer gold-tinteds, and (12) are the quantum dot sending out 620 nano red lights.
Detailed description of the invention
Below in conjunction with accompanying drawing and embodiment, the invention will be further described:
As shown in Figure 1 and Figure 2, first the quantum dot (2) of CdSe/CdS/ZnS " sandwich " sandwich structure is prepared by Organometallic Chemistry method, the size of quantum dot (2) comprises 2.5 nanometers, 3.3 nanometer, 4.7 nanometer, 5.8 nanometer, then the semicircle column type lenticule (1) made by the liquid with electrowetting covers on the quantum dot of these different sizes, the corresponding lenticule (1) of quantum dot (2) of each size, each lenticular shape is the same, and mutually insulated.The nano material ITO of 1 micron is had as transparency electrode (7) in each lenticule two ends oiling, then between different transparency electrode, scribble iknsulating liquid (8) nitrobenzene, draw at transparency electrode (7) two ends and connect external circuit with the thin wire of silver-colored material.Lenticule (1) is from left to right sequentially arranged in (3) in LED chip by quantum dot (2) size, composition microlens array.Again transparent outer cover (4) is covered on in LED chip (3).The quantum dot (2) of different size launches the light of different wave length under LED chip (3) sends the exciting of 460 nano blue lights, be respectively: the quantum dot of 2.5 nano-scales inspires the purple light of 380 nanometers, 3.3 the quantum dot of nano-scale inspires the blue light of 440 nanometers, the quantum dot of 4.7 nano-scales inspires the gold-tinted of 575 nanometers, and the quantum dot of 5.8 nano-scales inspires the ruddiness of 620 nanometers.The light of different wave length has different light emission directions under the refraction of lenticule (1); The difformity that lenticule (1) produces under different voltage effect causes the light emission direction of light different, realizes the adjustment to light color temperature.
Claims (3)
1. the adjustable color LED based on quantum dot, it is characterized in that: adopt liquid zoom lens as lenticule (1), quantum dot (2) is from left to right deposited in LED chip (3) by size successively, form different size quantum dot array, quantum dot array is covered with lenticule (1), transparent outer cover (4) covers on LED chip (3) upper end, and positive electrode (5) and negative electrode (6) are connected with LED chip (3) respectively and are drawn out to outside; The transparency electrode (7) at lenticule (1) two ends is communicated with external circuit by thin wire, by regulating the voltage be applied in transparency electrode (7) to change the lighting angle that lenticular shape controls different colours light, realize the adjustment of LED colour temperature.
2. a kind of adjustable color LED based on quantum dot according to claim 1, it is characterized in that: lenticule (1) is made up of the semicircle column type liquid zoom lens based on electrowetting, a lenticule is all covered with above the quantum dot of different size, separate between each lenticule (1), being communicated with external circuit by thin wire with transparency electrode (7) in each lenticule (1), is lenticule (1) power supply.
3. a kind of adjustable color LED based on quantum dot according to claim 1, it is characterized in that: LED chip (3) is InGaN blue-light LED chip, the quantum dot of the CdSe/CdS/ZnS nucleocapsid structure that quantum dot (2) is different size, under the exciting of 460 nano blue lights, the quantum dot of 2.5 nano-scales inspires the purple light of 380 nanometers, the quantum dot of 3.3 nano-scales inspires the blue light of 440 nanometers, the quantum dot of 4.7 nano-scales inspires the gold-tinted of 575 nanometers, and the quantum dot of 5.8 nano-scales inspires the ruddiness of 620 nanometers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027888.7A CN105423172A (en) | 2016-01-13 | 2016-01-13 | Color temperature adjustable LED (Light Emitting Diode) lamp based on quantum dots |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027888.7A CN105423172A (en) | 2016-01-13 | 2016-01-13 | Color temperature adjustable LED (Light Emitting Diode) lamp based on quantum dots |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105423172A true CN105423172A (en) | 2016-03-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610027888.7A Pending CN105423172A (en) | 2016-01-13 | 2016-01-13 | Color temperature adjustable LED (Light Emitting Diode) lamp based on quantum dots |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105423172A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736983A (en) * | 2016-04-13 | 2016-07-06 | 中国计量大学 | Color-adjustable quantum dot LED based on electromagnetic regulation and control |
| CN109140278A (en) * | 2017-06-26 | 2019-01-04 | 光宝科技股份有限公司 | Light source module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006186084A (en) * | 2004-12-27 | 2006-07-13 | Fujitsu Ltd | Semiconductor optical element and manufacturing method thereof |
| CN102339937A (en) * | 2011-09-26 | 2012-02-01 | 南京工业大学 | White light LED manufactured by quantum dot fluorescent powder and preparation method thereof |
| CN103542326A (en) * | 2013-09-30 | 2014-01-29 | 易美芯光（北京）科技有限公司 | Optical device capable of realizing high-color-gamut backlight |
| CN104641468A (en) * | 2012-08-24 | 2015-05-20 | 欧司朗Oled股份有限公司 | Organic light-emitting diode and method for operating an organic light-emitting diode |
| CN205331912U (en) * | 2016-01-13 | 2016-06-22 | 中国计量学院 | Adjustable color temperature LED lamp based on quantum dot |
-
2016
- 2016-01-13 CN CN201610027888.7A patent/CN105423172A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006186084A (en) * | 2004-12-27 | 2006-07-13 | Fujitsu Ltd | Semiconductor optical element and manufacturing method thereof |
| CN102339937A (en) * | 2011-09-26 | 2012-02-01 | 南京工业大学 | White light LED manufactured by quantum dot fluorescent powder and preparation method thereof |
| CN104641468A (en) * | 2012-08-24 | 2015-05-20 | 欧司朗Oled股份有限公司 | Organic light-emitting diode and method for operating an organic light-emitting diode |
| CN103542326A (en) * | 2013-09-30 | 2014-01-29 | 易美芯光（北京）科技有限公司 | Optical device capable of realizing high-color-gamut backlight |
| CN205331912U (en) * | 2016-01-13 | 2016-06-22 | 中国计量学院 | Adjustable color temperature LED lamp based on quantum dot |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736983A (en) * | 2016-04-13 | 2016-07-06 | 中国计量大学 | Color-adjustable quantum dot LED based on electromagnetic regulation and control |
| CN105736983B (en) * | 2016-04-13 | 2018-10-19 | 中国计量大学 | A kind of color-adjustable quantum dot LED based on electromagnetism regulation and control |
| CN109140278A (en) * | 2017-06-26 | 2019-01-04 | 光宝科技股份有限公司 | Light source module |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
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Application publication date: 20160323 |