CN107420748A - The luminescent device of adjustable color temperature and colour rendering index, adjusting method and light fixture - Google Patents
The luminescent device of adjustable color temperature and colour rendering index, adjusting method and light fixture Download PDFInfo
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- CN107420748A CN107420748A CN201710612380.8A CN201710612380A CN107420748A CN 107420748 A CN107420748 A CN 107420748A CN 201710612380 A CN201710612380 A CN 201710612380A CN 107420748 A CN107420748 A CN 107420748A
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- oled
- led component
- rendering index
- colour rendering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
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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
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- 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
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
- F21Y2115/15—Organic light-emitting diodes [OLED]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The invention provides the luminescent device of a kind of adjustable color temperature and colour rendering index, there is the light fixture of colour temperature and the adjustable luminescent device of colour rendering index and adjust the colour temperature and colour rendering index method of OLED luminescent devices, luminescent device includes OLED, LED component, the LED component is arranged side by side with the OLED, and the LED component is consistent with the light direction of the OLED；And control circuit, the control circuit adjust the luminous intensity of the LED component.The adjustable color temperature of the present invention and the luminescent device of colour rendering index, the high recombined white light to develop the color more than display index more than 90 can be sent by composite LED device and OLED, and the continuously adjustable of colour temperature and colour rendering index can be achieved by the regulation to light intensity in LED component.
Description
Technical field
The application is related to lighting source, particularly a kind of colour temperature and the adjustable luminescent device of colour rendering index, have colour temperature and
The light fixture of the adjustable luminescent device of colour rendering index and the colour temperature and colour rendering index method for adjusting OLED luminescent devices.
Background technology
In OLED, for Optical Parametrics such as a certain specific device architecture, its luminescent spectrum, colour temperature, colour rendering indexs
Number is all changeless；And in actual applications, for different environment, different crowds often to illumination and display lamp
The colour temperature or colour rendering index of equipment have different demands.
It is in the industry to OLED structure using more solution for the regulation of OLED colour temperature and development index
It is adjusted, mainly changes its luminescent layer and luminescent material.
In view of this, it is necessary to a kind of luminescent device of adjustable color temperature and colour rendering index is provided, there is colour temperature and colour developing to refer to
The light fixture of the adjustable luminescent device of number and the colour temperature and colour rendering index method for adjusting OLED luminescent devices, are asked with solving above-mentioned technology
Topic.
The content of the invention
In order to one of solve the above problems, present applicant proposes a kind of colour temperature and the adjustable luminescent device of colour rendering index, tool
There is the light fixture of colour temperature and the adjustable luminescent device of colour rendering index and adjust the colour temperature and colour rendering index method of OLED luminescent devices.
To achieve these goals, the application provides a kind of luminescent device of adjustable color temperature and colour rendering index, including OLED
Device, LED component, the LED component are arranged side by side with the OLED, and the LED component goes out with the OLED
Light direction is consistent；And control circuit, the control circuit adjust the luminous intensity of the LED component.
As a further improvement on the present invention, the luminescent device includes some LED components, some OLED devices
Part, and some LED components side by side and are arranged alternately with some OLEDs.
As a further improvement on the present invention, there is the different LED devices of at least two wavelength around the OLED
Part, the control circuit optionally control the luminous intensity of the LED component of any wavelength.
As a further improvement on the present invention, the light emission side of OLED and LED component is provided with light-mixed layer.
As a further improvement on the present invention, the light emission color temperature scope of the luminescent device is between 3600K~5000K,
Colour rendering index is more than 87.
For achieving the above object, the present invention also provides a kind of light fixture of adjustable color temperature and colour rendering index, comprising described
Luminescent device.
For achieving the above object, the present invention also provides a kind of colour temperature and colour rendering index method for adjusting OLED,
Including：LED component is provided, the LED component is arranged side by side with the OLED, the LED component and the OLED
Light direction it is consistent；Control circuit is provided, the current value of the LED component is adjusted by the control circuit, to adjust
State the colour temperature and colour rendering index of OLED.
As a further improvement on the present invention, there is the different LED devices of at least two wavelength around the OLED
Part, the control circuit optionally control the current value of the LED component of any wavelength.
As a further improvement on the present invention, the control circuit control the luminous intensity of the LED component 0%~
Continuously adjusted between 100%.
As a further improvement on the present invention, LED component luminescent spectrum is the OLED devices in the range of 400nm~500nm
Part luminescent spectrum is in the range of 450nm~760nm.
Beneficial effects of the present invention：The adjustable color temperature of the present invention and the luminescent device of colour rendering index, pass through composite LED device
The recombined white light of the high colour developing more than display index more than 90 can be sent with OLED, and by light intensity in LED component
Regulation the continuously adjustable of colour temperature and colour rendering index can be achieved.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding of the present application, forms the part of the application, this Shen
Schematic description and description please is used to explain the application, does not form the improper restriction to the application.In the accompanying drawings：
Fig. 1 be the present invention adjustable color temperature and colour rendering index luminescent device structural representation；
Fig. 2 is the spectrogram that the white light that the OLED shown in Fig. 1 is sent corresponds to luminous intensity；
Fig. 3 (a) is that the 456nm blue lights sent of LED component correspond to the schematic diagram of luminous intensity；
Fig. 3 (b) is that the 456nm blue lights in Fig. 3 (a) are compound white after compound with the white light of OLED under varying strength
Light corresponds to the spectrogram of luminous intensity；
Fig. 3 (c) is the spectrogram in the wavelength of Fig. 3 (b) center sections；
Fig. 4 (a) is that the 458nm blue lights sent of LED component correspond to the schematic diagram of luminous intensity；
Fig. 4 (b) is that the 458nm blue lights in Fig. 4 (a) are compound white after compound with the white light of OLED under varying strength
Light corresponds to the spectrogram of luminous intensity；
Fig. 4 (c) is the spectrogram in the wavelength of Fig. 4 (b) center sections；
Fig. 5 (a) is that the 460nm blue lights sent of LED component correspond to the schematic diagram of luminous intensity；
Fig. 5 (b) is that the 460nm blue lights in Fig. 5 (a) are compound white after compound with the white light of OLED under varying strength
Light corresponds to the spectrogram of luminous intensity；
Fig. 5 (c) is the spectrogram in the wavelength of Fig. 5 (b) center sections；
Fig. 6 (a) is the arrangement schematic diagram of LED component and OLED in luminescent device of the invention；
Fig. 6 (b) is another arrangement schematic diagram of LED component and OLED in luminescent device of the invention.
Fig. 6 (c) is another arrangement schematic diagram of LED component and OLED in luminescent device of the invention.
Embodiment
To make the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described corresponding accompanying drawing.Obviously, described embodiment is only the application one
Section Example, rather than whole embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out under the premise of creative work the every other embodiment obtained, belong to the scope of the application protection.
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear",
The orientation or position relationship of the instruction such as "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outer " is based on accompanying drawing institutes
The orientation or position relationship shown, it is for only for ease of the description present invention and simplifies description, rather than instruction or the dress for implying meaning
Put or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limit of the invention
System.
In the description of the invention, unless otherwise prescribed with limit, it is necessary to explanation, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can
To be to be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
As shown in Fig. 1, Fig. 6 (a), Fig. 6 (b), the luminescent device of adjustable color temperature of the invention and colour rendering index includes OLED
Device, LED component, control circuit and the shell being arranged in parallel with the OLED.The LED component and the OLED
It is arranged side by side, the LED component is consistent with the light direction of the OLED, and the light that LED component is sent is sent out with OLED
The white light penetrated is compound, ultimately forms recombined white light.
Further, the light emission side of OLED and LED component is provided with light-mixed layer, such as diffusion sheet, prismatic lens blooming piece or
Mixed light coating so that the photochromic of the luminescent device is well mixed.
OLED lights in 300nm~1500nm scopes, and color can be that various monochromatic light or complex light etc. are other kinds
The light of color；Preferably, the luminescent spectrum of the OLED can also be selected as in the range of 450nm~760nm.LED component
For luminescent spectrum in the range of 400nm~500nm, color can be the light of the other kinds colors such as various monochromatic light or complex light.LED
White light is formed after the light of device and the photoreactivation of OLED.
The OLED, the anode of the LED component, the set location of negative electrode are unlimited, two electrodes can along with
The direction that the light direction of device is vertical is divided into the both sides that device is oppositely arranged, and now its sense of current hangs down with light emission direction
Directly；Or two electrodes can be divided into the both sides of device along the light direction of device, but it is transparent close to the electrode of light emission side
Electrode.Anode, the negative electrode of LED component are eliminated in accompanying drawing 1.
The luminescent device include some LED components, some OLEDs, and some LED components with
Some OLEDs side by side and are arranged alternately；The arrangement mode of the LED component and the OLED is unlimited, preferably
Two kinds of luminescent devices are uniformly distributed, and as shown in Fig. 6 (a), Fig. 6 (b), the recombined white light that each region is sent is homogeneous.
The control circuit is located at the non-light emission side of the LED component and the OLED, passes through the control circuit
The current value for adjusting the LED component is changed with adjusting its luminous intensity between the 0%~100% of maximum emission intensity, from
And reach the optical parametric of regulation recombined white light, obtain the white light of high colour developing.It is of course also possible to by the control circuit simultaneously
The electric current of LED component and OLED is adjusted, so as to be reached by adjusting the luminous intensity of LED component and OLED
Adjust the optical parametric of recombined white light.
Further, there is the different LED component of at least two wavelength, the control circuit around the OLED
The current value of the LED component of any wavelength is optionally controlled, the size of the current value can be from 0%~100% model
Interior step-less adjustment is enclosed, so as to adjust the colour temperature and colour rendering index of the OLED luminescent devices using the blue light of different wave length,
Reach the high colour developing white light of different demands.
OLED white-light spectrum corresponds to luminous intensity as shown in Fig. 2 the optics for simulating to obtain according to OLED white-light spectrums
Parameter is：
| Optical parametric | Brightness (cd/m2) | Colour temperature (K) | Colour rendering index | Chromaticity coordinates |
| White light | 1072 | 3563 | 89.9 | (0.4018,0.3888) |
A kind of structure of the invention based on above-mentioned luminescent device, there is provided side for the colour temperature and colour rendering index for adjusting OLED
Method, it is specially：LED component is provided, the LED component is arranged side by side with the OLED, the LED component and the OLED
The light emission direction of device is consistent；Control circuit is provided, the current value of the LED component is adjusted by control circuit, so as to adjust
The luminous intensity of the LED component is to adjust the colour temperature and colour rendering index of the OLED luminescent devices.
When the luminescent device includes some LED components and some OLEDs, around the OLED
The effect of LED component meeting synergic adjustment white light.
Further, there is the different LED component of at least two wavelength, the control circuit around the OLED
The current value of any LED component is optionally controlled, so as to adjust the OLED using the blue light of different wave length
The colour temperature and colour rendering index of luminescent device, reach the high colour developing white light of different demands.
The colour temperature and colour rendering index method of regulation OLED will be illustrated by several specific embodiments below.
Embodiment 1
Keep white-light spectrum and its luminous intensity of OLED constant, the wavelength that regulation LED component is sent is blue for 456nm
The intensity of light, make blue light compound with OLED white lights at different brightnesses, to reach regulation OLED white light colour temperature and development indexes
Purpose.Shown in blue light strength such as Fig. 3 (a) that wherein LED component is sent, the spectrum of the recombined white light of the blue light of corresponding varying strength
And shown in luminous intensity such as Fig. 3 (b), 3 (c).
It is as shown in the table according to the optical parametric that recombined white light spectral simulation obtains：
Wherein, 0.1,0.2,04,0.6,0.8,1.0 in Fig. 3 (b), 3 (c) and above table represents 458nm blue light hair
Luminous intensity is respectively the 10% of its maximum emission intensity, and 20%, 40%, 60%, 80%, 100%；" white light+458*0.1 " table
Show：The intensity adjustment of the blue light for the 458nm that LED component is sent is the 10% of its largest light intensity, is then sent with OLED
White light be compounded to form recombined white light.The meaning expressed by scale parameter in the following drawings and form is same as above, and is repeated no more.
From above table, with the rise for the blue light strength that LED component is sent, colour temperature gradually rises, and develops the color and refer to
Number first increases to be reduced afterwards, and when blue light strength is 0.4, colour rendering index reaches maximum；User can be according to being actually needed control blue light
The recombined white light that intensity is needed.
Embodiment 2
Keep white-light spectrum and its luminous intensity of OLED constant, the wavelength that regulation LED component is sent is blue for 458nm
The intensity of light, make blue light compound with OLED white lights at different brightnesses, to reach regulation OLED white light colour temperature and development indexes
Purpose.Wherein shown in the blue light strength sent such as Fig. 4 (a) of LED component, the light of the recombined white light of the blue light of corresponding varying strength
Spectrum and luminous intensity such as Fig. 4 (b), 4 (c) are shown.
It is as shown in the table according to the optical parametric that recombined white light spectral simulation obtains：
From 4 (b), 4 (c) and above table, with the rise for the blue light strength that LED component is sent, colour temperature gradually rises
Height, and colour rendering index first increases and reduced afterwards, when blue light strength is 0.4, colour rendering index reaches maximum；User can be according to actual need
Control the recombined white light that blue light strength is needed.
Embodiment 3
Keep white-light spectrum and its luminous intensity of OLED constant, the wavelength that regulation LED component is sent is blue for 460nm
The intensity of light, make blue light compound with OLED white lights at different brightnesses, to reach regulation OLED white light colour temperature and development indexes
Purpose.Wherein shown in the blue light strength sent such as Fig. 5 (a) of LED component, the light of the recombined white light of the blue light of corresponding varying strength
Spectrum and luminous intensity such as Fig. 5 (b), 5 (c) are shown.
It is as shown in the table according to the optical parametric that recombined white light spectral simulation obtains：
From 5 (b), 5 (c) and above table, with the rise for the blue light strength that LED component is sent, colour temperature gradually rises
Height, and colour rendering index first increases and reduced afterwards, when blue light strength is 0.4, colour rendering index reaches maximum；User can be according to actual need
Control the recombined white light that blue light strength is needed.
From above-mentioned specific embodiment, the intensity of the blue light sent by adjusting LED component can be to the color of OLED white lights
Gentle colour rendering index is adjusted, and realizes continuously adjustabe of the colour temperature between 3600K~5000K, and shows that index is more 90
High colour developing white light above.
Embodiment 4
In the present embodiment, the luminescent device includes some LED components and some OLEDs, each described
Include the different LED component of at least two luminous complementary wavelengths around LED component, for example, wavelength be respectively 456nm, 458nm or
460nm LED component.Keep white-light spectrum and its luminous intensity of the OLED constant, be selectively adjusted wavelength
For the intensity of at least one blue light sent in 456nm, 458nm or 460nm LED component, make blue light at different brightnesses
It is compound with OLED white lights, to reach the purpose of regulation OLED white light colour temperature and development indexes.Wherein independent adjusting wavelength is respectively
The luminous intensity of 456nm, 458nm, 460nm LED component to the regulating effects of OLED white lights respectively with embodiment 1, embodiment
2nd, embodiment 3 is identical, repeats no more.The luminous intensity of multiple LED components is adjusted simultaneously, to adjust the colour temperature of OLED and show
Colour index.Illumination spectrum can be optimized by adjusting one LED component of the independent regulation of luminous strength ratio of multiple LED components simultaneously, be carried
High development properties.
In summary, the luminescent device of adjustable color temperature of the invention and colour rendering index, passes through composite LED device and OLED devices
Part can send the higher recombined white light of colour rendering index, and pass through the regulation continuously adjustable OLED devices to light intensity in LED component
The reference color temperature for the white light that part is sent is between 3600K~5000K, and colour rendering index is more than 87.
In addition, the present invention also provides a kind of light fixture with above-mentioned luminescent device, its colour temperature and development index can pass through
Above-mentioned adjusting method regulation.
It should be appreciated that although this specification is described according to embodiment, not each embodiment is only only comprising one
Vertical technical scheme, this narrating mode of specification is only that those skilled in the art should be by specification for clarity
As an entirety, the technical solutions in the various embodiments may also be suitably combined, formed it will be appreciated by those skilled in the art that
Other embodiment.
Those listed above is a series of to describe illustrating only for possible embodiments of the invention in detail,
And be not used to limit the scope of the invention, all equivalent embodiments made without departing from skill spirit of the present invention or change all should
Within protection scope of the present invention.
Claims (10)
- A kind of 1. luminescent device of adjustable color temperature and colour rendering index, it is characterised in that：IncludingOLED,LED component, the LED component are arranged side by side with the OLED, the light extraction of the LED component and the OLED Direction is consistent；And control circuit, the control circuit adjust the luminous intensity of the LED component.
- 2. the luminescent device of adjustable color temperature according to claim 1 and colour rendering index, it is characterised in that：The luminescent device Including some LED components, some OLEDs, and some LED components and some OLEDs side by side And it is arranged alternately.
- 3. the luminescent device of adjustable color temperature according to claim 1 or 2 and colour rendering index, it is characterised in that：The OLED There is the different LED component of at least two wavelength, the control circuit optionally controls any wavelength around device The luminous intensity of the LED component.
- 4. the luminescent device of adjustable color temperature according to claim 1 or 2 and colour rendering index, it is characterised in that：OLED and LED The light emission side of device is provided with light-mixed layer.
- 5. the luminescent device of adjustable color temperature according to claim 1 or 2 and colour rendering index, it is characterised in that：It is described luminous The light emission color temperature scope of device is between 3600K~5000K, and colour rendering index is more than 87.
- A kind of 6. light fixture of adjustable color temperature and colour rendering index, it is characterised in that：Include the Claims 1 to 5 any one institute The luminescent device stated.
- A kind of 7. colour temperature and colour rendering index method for adjusting OLED, it is characterised in that：LED component is provided, the LED component is arranged side by side with the OLED, the LED component and the OLED Light direction is consistent；Control circuit is provided, the current value of the LED component is adjusted by the control circuit, to adjust the OLED Colour temperature and colour rendering index.
- 8. the colour temperature and colour rendering index method of regulation OLED according to claim 7, it is characterised in that：The OLED There is the different LED component of at least two wavelength, the control circuit optionally controls any wavelength around device The current value of the LED component.
- 9. the colour temperature and colour rendering index method of regulation OLED according to claim 7, it is characterised in that：The control Circuit controls the luminous intensity of the LED component to be continuously adjusted between 0%~100%.
- 10. the luminescent device of adjustable color temperature according to claim 1 or 2 and colour rendering index, or according to the institute of claim 7 or 8 The colour temperature and colour rendering index method for the regulation OLED stated, LED component luminescent spectrum be 400nm~500nm in the range of, it is described OLED luminescent spectrum is in the range of 450nm~760nm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710612380.8A CN107420748B (en) | 2017-07-25 | 2017-07-25 | The luminescent device of adjustable color temperature and colour rendering index, adjusting method and lamps and lanterns |
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| CN201710612380.8A CN107420748B (en) | 2017-07-25 | 2017-07-25 | The luminescent device of adjustable color temperature and colour rendering index, adjusting method and lamps and lanterns |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102392961A (en) * | 2011-11-17 | 2012-03-28 | 南京第壹有机光电有限公司 | LED (light emitting diode) and OLED (organic light emitting diode) composite surface luminescent device |
| CN102474932A (en) * | 2009-06-30 | 2012-05-23 | 3M创新有限公司 | White light electroluminescent devices with adjustable color temperature |
| CN104075162A (en) * | 2014-07-04 | 2014-10-01 | 复旦大学 | High-colour-rendering-property white-light LED illumination system with adjustable colour temperature |
-
2017
- 2017-07-25 CN CN201710612380.8A patent/CN107420748B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102474932A (en) * | 2009-06-30 | 2012-05-23 | 3M创新有限公司 | White light electroluminescent devices with adjustable color temperature |
| CN102474932B (en) * | 2009-06-30 | 2015-12-16 | 3M创新有限公司 | There is the white-light electroluminescence device of adjustable color temperature |
| CN102392961A (en) * | 2011-11-17 | 2012-03-28 | 南京第壹有机光电有限公司 | LED (light emitting diode) and OLED (organic light emitting diode) composite surface luminescent device |
| CN104075162A (en) * | 2014-07-04 | 2014-10-01 | 复旦大学 | High-colour-rendering-property white-light LED illumination system with adjustable colour temperature |
| CN104075162B (en) * | 2014-07-04 | 2016-07-13 | 复旦大学 | A kind of White LED with high color rendering property illuminator of adjustable color temperature |
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