CN105789474A - Lighting source - Google Patents
Lighting source Download PDFInfo
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- CN105789474A CN105789474A CN201410812238.4A CN201410812238A CN105789474A CN 105789474 A CN105789474 A CN 105789474A CN 201410812238 A CN201410812238 A CN 201410812238A CN 105789474 A CN105789474 A CN 105789474A
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- lighting source
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Abstract
The invention discloses a lighting source. The lighting source comprises a scattering layer, a light guide plate arranged at one side of the scattering layer and an organic color conversion layer arranged at the other side of the scattering layer. At least one edge of the light guide plate is equipped with an excitation light source. According to the lighting source, through adoption of photoluminescence and a fluorochrome system with low cost, the cost is greatly reduced, moreover, a high color rendering plane lighting panel is obtained, the dark blue light radiation of the lighting source is effectively reduced, dark red light components are increased, a color rendering property is improved, and especially an R9 value is improved.
Description
Technical field
The relevant a kind of lighting source of the present invention, particularly relates to a kind of organo-mineral complexing lighting source that can obtain height colour developing recombined white light.
Background technology
Conventional LED white light, the mode that blue light adds inorganic yellow fluorescent material can be adopted to realize, inorganic LED white-light spectrum as shown in Figure 1, wherein blue light ingredient concentrates on the scope of wavelength 440-460nm, and spectrum lacks green glow and dark red light component, therefore visual effect is unsatisfactory.In order to improve LED light spectrum, by being mixed into inorganic red fluorescent material further in above-mentioned inorganic yellow fluorescent material, emitting red light spectrum can be obtained, and then obtain height display property lighting source.But generally the peak value of LED HONGGUANG is at wavelength about 600nm, so the R9 value of deep red light portion is relatively low, simultaneously as the existence of dark blue light, it is easy to vision is caused damage.People's blue spectrum as shown in Figure 2 simultaneously, due to blue spectrum only that vision is harmful in blue light, it is also desirable to blue light carries out the change of spectral distribution so that it is convert the high-color rendering white-light that human eye is harmless to.
Summary of the invention
In view of this, offer one is provided and can weaken dark blue light, and there is the LED illumination light source of deep red-light spectrum.
For reaching above-mentioned purpose, the present invention provides a kind of lighting source, and it includes scattering layer, is located at the light guide plate of this scattering layer incident illumination side and is located at organic color converting layer of this scattering layer emergent light side, and at least one edge of this light guide plate is provided with excitation source.
Described excitation source is the LED blue light source launched and have 430nm 480nm wavelength.
Described excitation source is the LED blue light source launched and have 430nm 480nm wavelength and the LED white light source launching the inorganic phosphor composition with 550nm 580nm wavelength.
Described organic color converting layer includes and can absorb dark blue light and send the organic light-converting material of at least one of gold-tinted or HONGGUANG.
Described organic light-converting material adopts organic light emission main body mixed luminescence dyestuff and Other substrate materials to prepare into optical thin film.
In described optical thin film, described organic light emission main body adopts, with luminescent dye, the mode simply mixed, or described organic light emission main body passes through chemical bonding with luminescent dye, wherein Other substrate materials, light emitting host, in luminescent dye three, the mass ratio of light emitting host is at 5-50%, and the mass ratio of luminescent dye is Other substrate materials in 0.01-10%, surplus.
Described luminescent dye is one or both in rubrene, C545T, DCJTB and DCM.
Described organic color converting layer contains at least one dark red coloured light shifting dyes.
Described dark red coloured light shifting dyes is DCJTB or DCM.
The present invention adopts luminescence generated by light, adopts cheap fluorescent dye system, greatly reduces cost, obtaining high-color rendering flat illumination panel, while effectively reducing the dark blue light radiation of lighting source, by increasing dark red light component in spectrum, improve color rendering properties, especially R9 value.
Accompanying drawing explanation
Fig. 1 is the spectral distribution graph of conventional LED white light；
Fig. 2 is the spectral distribution graph of LED blue light；
Fig. 3 is the structural representation of the lighting source of the present invention；
Fig. 4 is the high-color rendering white-light spectral distribution graph that the lighting source of the present invention sends.
Detailed description of the invention
For ease of the structure of the present invention and the effect that reaches are had further understanding, describe in detail as follows in conjunction with the accompanying drawing preferred embodiment that develops simultaneously.
As it is shown on figure 3, the lighting source of the present invention includes scattering layer 1, is located at the light guide plate 2 of scattering layer 1 incident illumination side and is located at organic color converting layer 3 of scattering layer 1 emergent light side, at least one edge of this light guide plate 2 is provided with excitation source 4.
nullOrganic color converting layer 3 in the present invention is containing at least one organic light-converting material，Adopt luminescent dye，Such as rubrene (rubrene)、C545T(10-(2-[4-morpholinodithio)-2,3,6,7-tetrahydrochysene-1,1,7,7,-tetramethyl l-1H,5H,11H-[1] benzopyran ketone group [6,7,8-ij] quinolizine-11-ketone) in one or both，Mix organic light emitting host and Other substrate materials prepares into optical thin film，Dark blue for part light can be absorbed by this optical thin film，And it is converted into more continuous gold-tinted or HONGGUANG，This organic light emission main body can adopt simple physical admixture to prepare into optical thin film with luminescent dye，This optical thin film can also adopt organic light emission main body and luminescent dye to be prepared by the mode of chemical bonding，Wherein Other substrate materials、Light emitting host、In luminescent dye three，The mass ratio of light emitting host is at 5-50%，The mass ratio of luminescent dye is at 0.01-10%，Surplus is Other substrate materials.Organic color converting layer 3 in the present invention is containing dark red coloured light shifting dyes, such as DCJTB(4-(the dicyano methylene)-2-tert-butyl group-6-(1,1,7,7-tetramethyl Luo Nidingji of a specified duration-4-vinyl)-4H-pyrans) or DCM(4-(dimercapto methylene)-2-methyl-6-(to dimethylaminostyryl)-4H-pyrans) etc., the light such as this material absorbable is blue, greenish-yellow are also converted into peony light component (dark red coloured light can be the wavelength HONGGUANG more than 630nm).Wherein in Other substrate materials, organic light emission main body and dark red coloured light shifting dyes three, the mass ratio of organic light emission main body is at 5-50%, and the mass ratio of dark red coloured light shifting dyes is at 0.01-10%.Organic color converting layer 3 of the present invention can adopt one or more organic light-converting materials to mix the mode of combination collocation of one or more dark red coloured light shifting dyes.
The excitation source 4 of the present invention is provided with inorganic light-emitting light source, it can be LED white light source, it is alternatively LED blue light source, when adopting white light, LED white light source is had the LED blue light source of 430nm-480nm wavelength by transmitting to form with launching the inorganic phosphor with 550nm-580nm wavelength, adopt conventional LED chips, yellow fluorescent powder is excited to obtain high color temperature LED white light, above-mentioned white light is entered by side, light guide plate 2 two ends, the luminous point making light guide plate 2 front light-emitting zone is uniformly distributed, and enter scattering layer 1 spectrum is carried out uniformly diffusion after, respectively through organic color converting layer 3, formed and there is more dark red coloured light and the high-color rendering white-light (as shown in Figure 3) without blue light harm.Being illustrated in figure 4 excitation source is the LED blue light source with 430nm-480nm wavelength, be scattered and organic color converting layer 3 conversion after white-light spectrum scattergram, be wherein absent from the dark blue coloured light of harm, and add dark red coloured light.
Brightness is first uniformly distributed by the present invention with light guide plate and scattering layer, then adds color converting layer, can be prevented effectively from local luminance too high, cause that organic membrane is decayed.The lighting source of the present invention can obtain high-color rendering flat illumination panel, effectively reduces dark blue light radiation, adds dark red light component simultaneously, improves color rendering properties, especially R9 value；The present invention adopts luminescence generated by light, the absorption of molecule certain stability corresponding to luminescence, adopts cheap fluorescent dye system, it is not necessary to phosphorescent coloring, it is possible to decrease cost.
The above, be only presently preferred embodiments of the present invention, is not intended to limit protection scope of the present invention.
Claims (9)
1. a lighting source, it is characterised in that it includes scattering layer, is located at the light guide plate of this scattering layer incident illumination side and is located at organic color converting layer of this scattering layer emergent light side, and at least one edge of this light guide plate is provided with excitation source.
2. lighting source as claimed in claim 1, it is characterised in that described excitation source is the LED blue light source launched and have 430nm 480nm wavelength.
3. lighting source as claimed in claim 1, it is characterised in that described excitation source is the LED blue light source launched and have 430nm 480nm wavelength and the LED white light source launching the inorganic phosphor composition with 550nm 580nm wavelength.
4. lighting source as claimed in claim 1, it is characterised in that described organic color converting layer includes and can absorb dark blue light and send the organic light-converting material of at least one of gold-tinted or HONGGUANG.
5. lighting source as claimed in claim 4, it is characterised in that described organic light-converting material adopts organic light emission main body mixed luminescence dyestuff and Other substrate materials to prepare into optical thin film.
6. lighting source as claimed in claim 5, it is characterized in that, in described optical thin film, described organic light emission main body adopts, with luminescent dye, the mode simply mixed, or described organic light emission main body passes through chemical bonding with luminescent dye, wherein Other substrate materials, light emitting host, in luminescent dye three, the mass ratio of light emitting host is at 5-50%, and the mass ratio of luminescent dye is Other substrate materials in 0.01-10%, surplus.
7. lighting source as claimed in claim 5, it is characterised in that described luminescent dye is one or both in rubrene, C545T, DCJTB and DCM.
8. lighting source as claimed in claim 1 or 2, it is characterised in that described organic color converting layer contains at least one dark red coloured light shifting dyes.
9. lighting source as claimed in claim 8, it is characterised in that described dark red coloured light shifting dyes is DCJTB or DCM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812238.4A CN105789474B (en) | 2014-12-24 | 2014-12-24 | A kind of lighting source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410812238.4A CN105789474B (en) | 2014-12-24 | 2014-12-24 | A kind of lighting source |
Publications (2)
| Publication Number | Publication Date |
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| CN105789474A true CN105789474A (en) | 2016-07-20 |
| CN105789474B CN105789474B (en) | 2018-02-06 |
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| CN201410812238.4A Active CN105789474B (en) | 2014-12-24 | 2014-12-24 | A kind of lighting source |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679493A (en) * | 2020-05-29 | 2020-09-18 | 太湖金张科技股份有限公司 | Backlight module with blue light conversion reflection film and liquid crystal display panel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003302918A (en) * | 2002-04-08 | 2003-10-24 | Fusao Terada | Light emitting display device |
| JP2004164977A (en) * | 2002-11-12 | 2004-06-10 | Nichia Chem Ind Ltd | Light-emitting apparatus using phosphor sheet |
| CN101404130A (en) * | 2007-07-27 | 2009-04-08 | 株式会社田村制作所 | Light-emitting sign device |
| CN102374492A (en) * | 2010-08-12 | 2012-03-14 | 海洋王照明科技股份有限公司 | Light guide plate and preparation method thereof, light-emitting diode (LED) plane light source and display |
| CN102384372A (en) * | 2010-09-02 | 2012-03-21 | 吴明番 | Light emitting device of LED (light-emitting diode) area light source covered by optical film and production method thereof |
| CN103635839A (en) * | 2011-04-28 | 2014-03-12 | L.E.S.S.有限责任公司 | Waveguide apparatus for illumination systems |
-
2014
- 2014-12-24 CN CN201410812238.4A patent/CN105789474B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003302918A (en) * | 2002-04-08 | 2003-10-24 | Fusao Terada | Light emitting display device |
| JP2004164977A (en) * | 2002-11-12 | 2004-06-10 | Nichia Chem Ind Ltd | Light-emitting apparatus using phosphor sheet |
| CN101404130A (en) * | 2007-07-27 | 2009-04-08 | 株式会社田村制作所 | Light-emitting sign device |
| CN102374492A (en) * | 2010-08-12 | 2012-03-14 | 海洋王照明科技股份有限公司 | Light guide plate and preparation method thereof, light-emitting diode (LED) plane light source and display |
| CN102384372A (en) * | 2010-09-02 | 2012-03-21 | 吴明番 | Light emitting device of LED (light-emitting diode) area light source covered by optical film and production method thereof |
| CN103635839A (en) * | 2011-04-28 | 2014-03-12 | L.E.S.S.有限责任公司 | Waveguide apparatus for illumination systems |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679493A (en) * | 2020-05-29 | 2020-09-18 | 太湖金张科技股份有限公司 | Backlight module with blue light conversion reflection film and liquid crystal display panel |
| CN111679493B (en) * | 2020-05-29 | 2022-10-21 | 太湖金张科技股份有限公司 | Backlight module with blue light conversion reflecting film and liquid crystal display panel |
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| Publication number | Publication date |
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| CN105789474B (en) | 2018-02-06 |
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