CN106405706A - Blue light conversion diffusion barrier - Google Patents
Blue light conversion diffusion barrier Download PDFInfo
- Publication number
- CN106405706A CN106405706A CN201610395596.9A CN201610395596A CN106405706A CN 106405706 A CN106405706 A CN 106405706A CN 201610395596 A CN201610395596 A CN 201610395596A CN 106405706 A CN106405706 A CN 106405706A
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- Prior art keywords
- blue light
- light
- diffusion barrier
- transparent base
- optical transition
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
The present invention discloses a blue light conversion diffusion barrier. The diffusion barrier comprises transparent base materials (1) and a plurality of light conversion layers (4) fixed at one surface at one side or two surfaces at two sides of the transparent base materials (1), the light conversion layers (4) are configured to convert the blue light having the wave length of 400-480nm to green-yellow light or orange red light, a light diffusion coating (2) is arranged at the uppermost layer of the transparent base materials (1), and an isolation layer (3) is arranged at the lowest layer of the transparent base materials (1). The blue light conversion diffusion barrier can convert high-energy blue light to orange red light or green-yellow light so as to absorb the high-energy blue light of white LED point light source in the backlight of a liquid crystal display screen, reduce the blue light radiation and avoid damaging of human eyes; and moreover, the blue light conversion diffusion barrier has the function of improving the purities of the red, green and blue light colors and the color rendering index, the contrast and the brightness of the display device.
Description
Technical field
The present invention relates to optical film materials, more particularly, to one kind are mainly used in mobile phone, computer, digital phase
The blue light conversion diffusion barrier of the display screens such as machine.
Background technology
White light LEDs have the advantages that luminous efficiency height, life-span length, energy-conserving and environment-protective, are increasingly becoming current liquid
The commonly used light source of LCD backlight source module.White light LEDs are by blue gallium nitride based LED core
Piece and being formed by the fluorescent material of effective excitation-emission gold-tinted.When LED chip sends blue light (440-470
Nm), some blue light can be efficiently converted into, by fluorescent material, the wider Huang of spectrum that spectral centroid is about 580nm
Coloured light.The blue light of gold-tinted mixing LED itself is it appears that close to white light.But from white LED spectrum
Figure (as shown in Figure 4) it can be seen that its blue light too strong with the too weak problem of HONGGUANG, color rendering propertiess are low, right
Display image quality impacts.And, the blue light components intensity that white light LEDs send is higher, and current research
Display shortwave blue light has high-energy, can penetrate the through retina of crystalline lenses, can make the macula lutea in eyes
Area's toxin amount increases, serious threat mankind optical fundus health.If eyes, for a long time under blue light illumination, can draw
Send out retinal photoreceptor ability to be substantially improved, induce eyestrain, circadian rhythm disturbances.When retina capture
After photon reaches a certain amount, retina cell starts death, thus causing retina injury.Due to
Small-medium size liquid crystal display is typically all to be used for closely watching, and the sickness rate of oculopathy is pressed every year in recent years
15-25% speed is increasing.
The function of LCD backlight module be for the well-off brightness of liquid crystal display be evenly distributed
Light source, its illumination effect will directly affect LCD MODULE visual effect.Back light module unit structure one
As include：Light source, light guide plate and various functions optical thin film (include：Bottom reflectance coating, diffusion barrier, rib
Mirror film etc.).Therefore in the LCD screen backlight module as display device source, blue light is intercepted
It is highly desirable to.
Content of the invention
In view of the drawbacks described above of prior art, the technical problem to be solved is to provide one kind new
Type optical diffusion, the high energy that can not only absorb in the backlight of LCD of White LED point source is blue
Light, weakens blue ray radiation, it is to avoid human eye comes to harm, and does not affect display display effect.
For achieving the above object, the invention provides a kind of blue light conversion diffusion barrier, including transparent base with
And if anchoring at the dried layer optical transition layer on transparent base single side surface or both sides Liang Ge surface, described light
Learn conversion layer to be used in the blue light of 400-480nm, wavelength being converted into green-yellow light or orange light, in transparent base
The material the superiors are provided with optics diffusion coating, and transparent base orlop is provided with sealing coat.
Preferably, described transparent base is mylar, polymethyl methacrylate film, Merlon
Thin film, cellulose triacetate film, nylon film, polyethylene film, polypropylene film or polrvinyl chloride
Thin film, transparent base thickness is 1-200 μm.
Preferably, described optical transition layer is mixed with transparent resin by optical transition material and forms, and optics turns
Conversion materials are 0.00001～0.2 with the mass ratio of transparent resin:1.The quality of optical transition material takes than size
Certainly in fluorescence quantum efficiency and the required spectrum conversion effect reaching of material, can be according to different application model
The display device enclosing uses the optical transition material of appropriate mass ratio to the demand of display image quality.
Preferably, described optical transition material is rare-earth luminescent material, organic molecule luminescent material, has
One or more of machine metal complex luminescent material, organic polymer luminescent material, quanta point material
Mixing.In order to realize improving red color light component and excitation, lift display image quality, can using monolayer or
Multilayer optical conversion layer structure, can be same fluorescent material or difference in different optical transition layers
The optical transition material planted.The optical transition layer being constituted using optical transition material not of the same race can be according to reality
Border demand, realizes the light absorbing the light of specific band and launching specific different-waveband, thus can
Ground is adjusted to improve the display effect of display screen.
Preferably, described rare-earth luminescent material be aluminate fluorescent powder, silicate fluorescent powder, phosphate glimmering
Light powder, Tungstate fluorescent powder, molybdate fluorescent material, stibate fluorescent material, Nitride phosphor or sulfuration
Matter fluorescent powder.
Preferably, described organic molecule luminescent material is oxadiazoles and its derivatives class, triazole and its spreads out
Biological species, oxa anthracenes derivatives class, coumarin derivatives, 1,8- naphthalimide analog derivative, pyrrole
Oxazoline derivative, triphen amine derivant, porphyrinses, carbazole, pyrazine, pyrans, thiazoless
Derivant or analog derivative.
Preferably, described organometallic complex luminescent material is the metal complex of quinoline, pyrrole
The metal complex of trazodone derivative, the metal complex of triphenylphosphine oxide derivant, Schiff class are joined
The coordination compound that body or Hete rocyclic derivatives molecule are formed.
Preferably, described organic polymer luminescent material be polyphenyl, polyphenylene ethylene, polyphenylacetylene, poly-
Fluorenes, polythiophene, polycarbazole, poly- triphenylamine, polypyrrole, the derivant of poly- porphyrin or above-mentioned material.
Preferably, described quantum dot light emitting material be ZnO, CdS, PbS, CdSe, ZnSe, InP,
InAs、CdSexTe1-xOr CuInS2.
Preferably, described optical transition layer thickness in monolayer is 100nm-50 μm.
The blue light conversion diffusion barrier that the present invention provides, has the advantages that：
If the present invention passes through to arrange the optical transition layer of dried layer, wherein optical transition layer material in diffusion barrier
Using embedded photoluminescent material, material can absorb the light of certain wavelength, from ground state transition to excited state, moves back
Excite and send the light longer than lambda1-wavelength, thus diffusion barrier can absorb in White LED light source
Part wavelength, in the light of 400-480nm, launches the light in 500-700nm for the wavelength, will high energy
Blue light changes into other wave band visible rays.It is converted into by the high energy blue light sending white light LEDs point source
Orange light or green-yellow light, the high energy that can not only absorb White LED point source in backlight of LCD is blue
Light, weakens blue ray radiation, it is to avoid human eye comes to harm, but also can improve RGB light color purity,
The functions such as display device color rendering index, contrast and brightness.
Brief description
Fig. 1 is the diffusion barrier structural representation of a preferred embodiment of the present invention；
Fig. 2 is the diffusion barrier structural representation of another preferred embodiment of the present invention；
Fig. 3 is the diffusion barrier structural representation of another preferred embodiment of the present invention；
Fig. 4 is the diffusion barrier structural representation of another preferred embodiment of the present invention；
Fig. 5 is the blue light conversion effect comparison diagram that Fig. 1 of the present invention spreads membrane structure；
Fig. 6 is the blue light conversion effect comparison diagram that Fig. 2 of the present invention spreads membrane structure；
Fig. 7 is the blue light conversion effect comparison diagram that Fig. 3 of the present invention spreads membrane structure；
Fig. 8 is the blue light conversion effect comparison diagram that Fig. 4 of the present invention spreads membrane structure；
In figure 1 is transparent base, and 2 is optics diffusion coating, and 3 is sealing coat, and 4 is optical transition layer.
Specific embodiment
Technique effect below with reference to design, concrete structure and generation to the present invention for the accompanying drawing is made further
Illustrate, to be fully understood from the purpose of the present invention, feature and effect.
The diffusion barrier with blue light conversion as shown in Figure 1, including transparent base 1, transparent base 1 can
Think mylar, polymethyl methacrylate film, polycarbonate film, cellulose triacetate film,
One of nylon film, polyethylene film, polypropylene film or polyvinyl chloride film, base material thickness is
1～200 μm.It is fixed with one layer of optical transition layer 4 in transparent base 1 lower surface by way of coating,
Optical transition layer 4 can be realized for wavelength being converted into green-yellow light or orange light in the blue light of 400-480nm.
Optical transition layer 4 is mixed with transparent resin by optical transition material and forms, and transparent resin can be heat cure
Know or UV-cured resin, such as：Acrylic resin, polyester resin, polyurethane based resin,
Epoxy resin, organic siliconresin etc.；Optical transition material with the mass ratio of transparent resin is
0.00001～0.2:1.Wherein optical transition material selection embedded photoluminescent material, can absorb the light of certain wavelength
Line, then sends the light longer than lambda1-wavelength, and such as rare-earth luminescent material, organic molecule light
In material, organometallic complex luminescent material, organic polymer luminescent material, quanta point material one
Plant or several mixing.Rare-earth luminescent material can be selected for aluminate fluorescent powder, silicate fluorescent powder, phosphate
Fluorescent material, Tungstate fluorescent powder, molybdate fluorescent material, stibate fluorescent material, Nitride phosphor or sulfur
Compound fluorescent material.Organic molecule luminescent material can be selected for oxadiazoles and its derivatives class, triazole and its spreads out
Biological species, oxa anthracenes derivatives class, coumarin derivatives, 1,8- naphthalimide analog derivative, pyrrole
Oxazoline derivative, triphen amine derivant, porphyrinses, carbazole, pyrazine, pyrans, thiazoless
Derivant or analog derivative.Organometallic complex luminescent material mostly is stable five-membered ring or hexatomic ring
Inner complex salt structure, can be selected for the metal complex of quinoline, the metal complex of e derivatives,
The metal complex of triphenylphosphine oxide derivant, Schiff class part or Hete rocyclic derivatives molecule are formed
Coordination compound.Organic polymer luminescent material can be selected for polyphenyl, polyphenylene ethylene, polyphenylacetylene, polyfluorene,
Polythiophene, polycarbazole, poly- triphenylamine, polypyrrole, the derivant of poly- porphyrin or above-mentioned material.Quantum
Point luminescent material can be selected for ZnO, CdS, PbS, CdSe, ZnSe, InP, InAs, CdSexTe1-x
Or CuInS2.
In order to realize improving red color light component and excitation, lift display image quality, except adopting in above-mentioned embodiment
Optical transition layer 4 used in the unilateral set monolayer of transparent base 1 (is additionally included in transparent base 1 upper surface
One layer of optical transition layer 4 of set by way of coating, as shown in Figure 2), multilayer optical can also be adopted
The structure of conversion layer 4 stacking, and in the equal set single or multiple lift of transparent base 1 both sides two cousin
The modes such as optical transition layer 4, such as in the embodiment shown in Fig. 3, on transparent base 1 both sides
Lower surface has been coated with one layer of optical transition layer 4, in the embodiment shown in and for example in Fig. 4, transparent
Base material 1 lower surface is coated with two-layer optical transition layer 4.Can be all using same in different optical transition layers 4
A kind of optical transition material, it is possible to use optical transition material not of the same race.Take into account conversion effect and reality
Border using effect, optical transition layer 4 thickness in monolayer is 100nm-50 μm.
In transparent base 1 the superiors (i.e. transparent base 1 upper surface in Fig. 1, optical transition layer in Fig. 2
4 upper surfaces, the upper surface of transparent base 1 top optical transition layer 4, transparent base 1 in Fig. 4 in Fig. 3
Upper surface) it is one layer of optics diffusion coating 2, optics diffusion coating 2 has the light that will transmit through light guide plate
It is scattered process and makes the more uniform function of light distribution, optics diffusion coating 2 is generally by optical lens
Ming tree fat is formed with optics diffusion particle, optical clear resin material therefor no particular restriction, such as polyester
Resin, polyurethane resin, acrylic resin, epoxy resin, optics diffusion particle is the skill of art
Known to art personnel, it is but is not only limited to acrylic resin, polyurethane acrylic resin, polyphenyl second
Olefine resin, epoxy resin, polysiloxanes or its mixture.In transparent base 1 orlop (i.e. in Fig. 1
Optical transition layer 4 lower surface, transparent base 1 lower surface in Fig. 2, transparent base 1 lower section light in Fig. 3
Learn the lower surface of conversion layer 4, the lower surface of orlop optical transition layer 4 in Fig. 4) it is one layer of sealing coat
3, sealing coat 3 has the contact area reducing optical thin film and light guide plate, improves light guide plate luminous flux and keeps away
Exempt to produce the functions such as watermark shape defect during the bright inspection of backlight, its material is ripe for those skilled in the art
Know, for example but be not only limited to acrylic resin, polyurethane resin, polyester resin, epoxy resin.
The technical solution used in the present invention, technical characteristic and technology are expanded on further in conjunction with instantiation
Effect, by following examples, the present invention is further elaborated, and the claims in the present invention are not limited to
Lifted case study on implementation.
Embodiment one：
Diffusion membrane structure as shown in Figure 1, respectively thickness is 10 μm of optics diffusion painting from top to bottom
Layer 2, thickness is the transparent base 1 of 10 μm of cellulose triacetate films, and thickness is 50 μm of list
Layer optical transition layer 4 and the sealing coat 3 that thickness is 10 μm.
The optics diffusion coating 2 of the present embodiment adopts polyester resin to form with acrylic acid diffusion particle；Isolation
Material used by layer 3 is acrylic resin；The optical transition material of optical transition layer 4 is rare-earth luminescent material：
Eu2+The fluorescent material of doping, transparent resin is epoxy resin, the quality of rare-earth luminescent material and transparent resin
Ratio is 2:100, Eu2+Doping fluorescent material ultrasonic disperse in epoxy resin, by coating process set
On transparent base 1 surface.Eu2+Doping fluorescent powder can by wavelength 450nm about blue light excite and send ripple
Long in 600nm about orange light.As shown in figure 5, white LED light source passes through optical transition layer 4
Blue light strength weakens afterwards, and red light intensity improves.
Embodiment two：
Diffusion membrane structure as shown in Figure 2, respectively thickness is 10 μm of optics diffusion painting from top to bottom
Layer 2, thickness is 1 μm of single layer optical conversion layer 4, and thickness is that 50 μm of PET (gathers to benzene two
Formic acid glycol ester) transparent base 1, thickness is 10 μm of sealing coat 3.
The optics diffusion coating 2 of the implementation case adopts polyester resin to form with acrylic acid diffusion particle；Every
Material used by absciss layer 3 is acrylic resin；The optical transition material of optical transition layer 4 is rare-earth fluorescent material
Material：Eu2+Doping fluorescent powder and the mixing material of oxa anthracenes derivant, transparent resin is acrylic resin,
Light conversion material is 1.5 with the mass ratio of transparent resin:100, light conversion material high speed shear is scattered in third
In olefin(e) acid resin, transparent base 1 surface is anchored at by coating process.As shown in fig. 6, white light LEDs
Light source is weakened by blue light strength after optical transition layer 4, and red light intensity improves.
Embodiment three：
Diffusion membrane structure as shown in Figure 3, respectively thickness is 10 μm of optics diffusion painting from top to bottom
Layer 2, thickness is the single layer optical conversion layer 4 of 100nm, and thickness is 100 μm of polycarbonate films
Transparent base 1, thickness is the single layer optical conversion layer 4 of 100nm, and thickness is 10 μm of sealing coat 3.
The optics diffusion coating 2 of the implementation case adopts polyester resin to form with acrylic acid diffusion particle；Every
Material used by absciss layer 3 is acrylic resin；Optics positioned at the optical transition layer 4 of transparent base 1 top
Transition material is organic molecule fluorescent dye oxa anthracenes derivant, and transparent resin is polyester resin, oxygen
Miscellaneous anthracene derivative is 0.01 with the mass ratio of polyester resin:100, oxa anthracenes derivant is dissolved in isopropyl
Mix with polyester resin after in alcoholic solvent, transparent base 1 upper surface is anchored at by coating process；It is located at
The optical transition layer 4 optical transition material of transparent base 1 lower section is the quinoline of organic metal cooperation
Light conversion material, transparent resin is epoxy resin, and quinoline with the mass ratio of epoxy resin is
0.1:100, quinoline is mixed with epoxy resin, by coating side after being dissolved in tetrahydrofuran solvent
Method anchors at transparent base 1 lower surface.As shown in fig. 7, white LED light source passes through two-layer optical transition
After layer 4, blue light strength weakens, and other wavelength light intensities improve.
Example IV：
Diffusion membrane structure as shown in Figure 4, respectively thickness is 10 μm of optics diffusion painting from top to bottom
Layer 2, thickness is 200 μm of PET (polyethylene terephthalate) transparent base 1, and thickness is
1 μm of single layer optical conversion layer 4, thickness is 1 μm of single layer optical conversion layer 4, and thickness is 10
μm sealing coat 3.
The optics diffusion coating 2 of the implementation case adopts polyester resin to form with acrylic acid diffusion particle；Every
Material used by absciss layer 3 is acrylic resin；The optical transition material of the optical transition layer 4 that position is relatively gone up is
Organic molecule fluorescent dye DCM containing pyrans, 4- (dicyano methylene) -2- methyl -6- (4- dimethyl
Aminostyryl) -4H- pyrans, transparent resin is polyester resin, the mass ratio of DCM and polyester resin
It is 0.001:100, DCM are dissolved in chloroform solvent rear mixing, by coating process admittedly with polyester resin
In transparent base 1 lower surface；Position compared with the optical transition material of optical transition layer 4 be that rare earth is glimmering
Luminescent material YAG:Ce3+Fluorescent material, transparent resin is epoxy resin, rare-earth luminescent material and transparent resin
Mass ratio is 5:100, fluorescent material ultrasonic disperse, in epoxy resin, is anchored at by coating process
The light conversion layer lower surface of upper.Fluorescent material YAG:Ce3+Can by wavelength 450nm about blue light swash
Send green-yellow light；DCM can absorb green-yellow light and sends the orange light that wavelength is 600 about.As Fig. 8
Shown, white LED light source is weakened by blue light strength after the two-layer optical transition layer 4 of lamination, and HONGGUANG is strong
Degree improves.
The preferred embodiment of the present invention described in detail above.It should be appreciated that the common skill of this area
Art personnel just can make many modifications and variations according to the design of the present invention without creative work.Therefore,
All technical staff in the art are divided by logic under this invention's idea on the basis of existing technology
Analysis, reasoning or the available technical scheme of limited experiment, all should be defined in the patent claims
Protection domain in.
Claims (10)
1. a kind of blue light conversion diffusion barrier is it is characterised in that including transparent base (1) and anchoring at transparent
If dried layer optical transition layer (4) on single side surface or both sides Liang Ge surface, described optics turns base material (1)
Change layer (4) for wavelength being converted into green-yellow light or orange light in the blue light of 400-480nm, transparent
Base material (1) the superiors are provided with optics diffusion coating (2), and transparent base (1) orlop is provided with sealing coat
(3).
2. blue light as claimed in claim 1 conversion diffusion barrier is it is characterised in that described transparent base (1)
For mylar, polymethyl methacrylate film, polycarbonate film, cellulose triacetate film,
Nylon film, polyethylene film, polypropylene film or polyvinyl chloride film, transparent base (1) thickness is
1-200μm.
3. blue light as claimed in claim 1 conversion diffusion barrier is it is characterised in that described optical transition layer (4)
Mixed with transparent resin by optical transition material and form, optical transition material with the mass ratio of transparent resin is
0.00001～0.2:1.
4. blue light as claimed in claim 3 conversion diffusion barrier is it is characterised in that described optical transition material
For rare-earth luminescent material, organic molecule luminescent material, organometallic complex luminescent material, You Jigao
One or more of molecular ligh-emitting materials, quanta point material mix.
5. blue light as claimed in claim 4 conversion diffusion barrier is it is characterised in that described rare-earth luminescent material
Glimmering for aluminate fluorescent powder, silicate fluorescent powder, phosphate phosphor, Tungstate fluorescent powder, molybdate
Light powder, stibate fluorescent material, Nitride phosphor or sulphide fluorescent material.
6. blue light conversion diffusion barrier as claimed in claim 4 is it is characterised in that described organic molecule is sent out
Luminescent material is oxadiazoles and its derivatives class, triazole and its derivatives class, oxa anthracenes derivatives class, perfume (or spice)
Legumin analog derivative, 1,8- naphthalimide analog derivative, pyrazoline derivative, triphen amine derivant,
Porphyrinses, carbazole, pyrazine, pyrans, thiazole derivative or analog derivative.
7. blue light conversion diffusion barrier as claimed in claim 4 is it is characterised in that described organic metal coordinates
Thing luminescent material is the metal complex of quinoline, the metal complex of e derivatives, triphen
What the metal complex of base phosphine oxide derivant, Schiff class part or Hete rocyclic derivatives molecule were formed joins
Compound.
8. blue light conversion diffusion barrier as claimed in claim 4 is it is characterised in that described organic polymer is sent out
Luminescent material is polyphenyl, polyphenylene ethylene, polyphenylacetylene, polyfluorene, polythiophene, polycarbazole, poly- triphenyl
Amine, polypyrrole, the derivant of poly- porphyrin or above-mentioned material.
9. blue light as claimed in claim 4 conversion diffusion barrier is it is characterised in that described quantum dot light emitting material
Expect for ZnO, CdS, PbS, CdSe, ZnSe, InP, InAs, CdSexTe1-xOr CuInS2.
10. blue light as claimed in claim 1 conversion diffusion barrier is it is characterised in that described optical transition layer (4)
Thickness in monolayer is 100nm-50 μm.
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