CN108919599A - Projection film with include its optical projection system - Google Patents
Projection film with include its optical projection system Download PDFInfo
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- CN108919599A CN108919599A CN201810864261.6A CN201810864261A CN108919599A CN 108919599 A CN108919599 A CN 108919599A CN 201810864261 A CN201810864261 A CN 201810864261A CN 108919599 A CN108919599 A CN 108919599A
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- light
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- fluorescent material
- projection film
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/567—Projection screens for colour projection
Abstract
This application provides a kind of projection film and including its optical projection system.The projection film includes at least two different fluorescence coatings, each fluorescence coating is feux rouges fluorescence coating, green-emitting fluorescent layer or blue phosphor layer, wherein, feux rouges fluorescence coating includes red light flourescent material, green-emitting fluorescent layer includes green-emitting fluorescent material, blue phosphor layer includes blue-light fluorescent material, red light flourescent material, green-emitting fluorescent material and blue-light fluorescent material do not shine under the excitation of exciting light of the wavelength greater than 400nm, and the excitation wavelength of red light flourescent material, the excitation wavelength of green-emitting fluorescent material are different with the excitation wavelength of blue-light fluorescent material.Feux rouges, blue light and/or the green light of the projection film are mainly shone by diffraction, so that the mist degree of projection film is smaller, and light transmittance is higher.
Description
Technical field
This application involves display fields, in particular to a kind of projection film and including its optical projection system.
Background technique
The common solution of transparence display industry has line holographic projections film, PDLC, OLED at present, the mechanism description realized
It is as follows：
Line holographic projections film：By the way that scattering knot is arranged between coating scattering coating or substrate in a manner of doubling on substrate
Structure layer, the mechanism of projection are by the refractive index between the light diffusion particle and resin in scattering coating or diffusing structure layer
Difference is scattered the light that comes of projection to realize.
PDLC：I.e. intelligent fenestrated membrane realizes the different degrees of inclined of the liquid crystal being dispersed in resin by the variation of electric field
Turn, to realize the variation of the transmitance of diaphragm, the mechanism of projection is to scatter light using the refringence of liquid crystal and resin
Line, and this refringence is to realize variation by adjusting voltage.
OLED：Such method is exactly the display screen of one piece of OLED in fact, carries out picture using self-luminescent material without projecting
Face is shown.
The effect of line holographic projections film and the number of scattering particles are positively correlated, it is desirable to obtain higher brightness and large viewing
Drop shadow effect need more scattering particles, but more scattering particles means higher mist degree, and translucency is (visible
The transmitance of light) it is affected.The limitation of PDLC is the same with holographic film, and advantage is exactly that drop shadow effect can be according to environment light
Variation realize variation by adjusting voltage, but what is both do not solved preferable drop shadow effect and translucency still and get both asks
Topic.The light transmittance with high costs and visible light of OLED is less than 50%
Summary of the invention
The main purpose of the application is to provide a kind of projection film and the optical projection system including it, to solve in the prior art
Projection film visible light the lower problem of light transmittance.
To achieve the goals above, according to the one aspect of the application, a kind of projection film is provided, which includes extremely
Few two different fluorescence coatings, each above-mentioned fluorescence coating are feux rouges fluorescence coating, green-emitting fluorescent layer or blue phosphor layer, wherein above-mentioned
Feux rouges fluorescence coating includes red light flourescent material, and above-mentioned green-emitting fluorescent layer includes green-emitting fluorescent material, and above-mentioned blue phosphor layer includes
Blue-light fluorescent material, above-mentioned red light flourescent material, above-mentioned green-emitting fluorescent material are greater than with above-mentioned blue-light fluorescent material in wavelength
It does not shine under the excitation of the exciting light of 400nm, and the excitation wavelength of above-mentioned red light flourescent material, above-mentioned green-emitting fluorescent material is sharp
It is different with the excitation wavelength of above-mentioned blue-light fluorescent material to send out wavelength.
Further, above-mentioned red light flourescent material issues red under the excitation for the exciting light that wavelength is 200nm~325nm
Light, above-mentioned green-emitting fluorescent material issue green light under the excitation for the exciting light that wavelength is 230nm~380nm；Above-mentioned blue phosphor
Material issues blue light under the excitation for the exciting light that wavelength is 300nm~400nm；It is preferred that above-mentioned red light flourescent material is in wavelength
The feux rouges that wavelength is 550~700nm is issued under the excitation of the exciting light of 200nm~280nm；Further preferred above-mentioned green-emitting fluorescent
Material wavelength be 260nm~320nm exciting light excitation under issue wavelength be 500~550nm green light, further it is excellent
Choose state blue-light fluorescent material wavelength be 350nm~400nm exciting light excitation under issue wavelength be 380~570nm's
Blue light.
Further, along the direction of incident light, above-mentioned projection film includes the feux rouges fluorescence coating set gradually, green-emitting fluorescent layer
With blue phosphor layer.
Further, above-mentioned projection film further includes：First filter layer is arranged glimmering in above-mentioned green-emitting fluorescent layer and above-mentioned feux rouges
Between photosphere, above-mentioned first filter layer will excite above-mentioned green-emitting fluorescent in the incident light for being used to excite above-mentioned feux rouges fluorescence coating
The light of layer filters out.
Further, above-mentioned projection film further includes：Second filter layer is arranged glimmering in above-mentioned green-emitting fluorescent layer and above-mentioned blue light
Between photosphere, above-mentioned second filter layer is by the incident light for being used to excite above-mentioned green-emitting fluorescent layer and is used to excite above-mentioned feux rouges fluorescence
The light for exciting above-mentioned blue phosphor layer in the incident light of layer filters out.
Further, above-mentioned red light flourescent material, above-mentioned green-emitting fluorescent material are independently selected with above-mentioned blue-light fluorescent material
From organic fluorescence materials and/or inorganic fluorescent material；When above-mentioned red light flourescent material, above-mentioned green-emitting fluorescent material and/or above-mentioned
When blue-light fluorescent material includes inorganic fluorescent material, the partial size of preferably above-mentioned inorganic fluorescent material is less than 400nm.
Further, above-mentioned fluorescence coating further includes resin, and above-mentioned resin is light-cured resin, heat reactive resin and/or heat
Plastic resin.
Further, above-mentioned resin is pressure sensitive adhesive, and above-mentioned fluorescence coating further includes solvent, and above-mentioned solvent is N- crassitude
Ketone, further preferably in above-mentioned fluorescence coating, the weight percent of above-mentioned pressure sensitive adhesive is 5%~80%, above-mentioned N- crassitude
The weight percent of ketone is 10%~90%, and the weight percent of above-mentioned fluorescent material is 1.0%~10%.
Further, above-mentioned projection film further includes：Substrate, multiple directions of the above-mentioned fluorescence coatings edge far from above-mentioned substrate are successively
Stacked to be arranged on above-mentioned substrate, the light transmittance of preferably above-mentioned substrate is greater than 80%, and the mist degree of above-mentioned substrate is less than 3%；Into one
The light transmittance for walking preferably above-mentioned substrate is greater than 90%, and the mist degree of above-mentioned substrate is less than 1%.
According to the another aspect of the application, a kind of optical projection system, including projection film are provided, which is on any
The projection film stated.
Using the technical solution of the application, the fluorescent material in each fluorescence coating can issue corresponding under the excitation of ultraviolet light
Light, wherein feux rouges fluorescence coating issues feux rouges；Green-emitting fluorescent layer issues green light；Blue phosphor layer issues blue light.By the projection film packet
Multiple and different fluorescence coatings is included, by the ultraviolet excitation of different-waveband, the light of available different colours, so that the throwing
Shadow film can show full-color image, and the feux rouges of the projection film, blue light and/or green light are mainly shone by diffraction, in this way
So that the mist degree of projection film is smaller, light transmittance is higher.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.In the accompanying drawings：
Fig. 1 shows the structural schematic diagram of the projection film provided according to a kind of embodiment of the application；
Fig. 2 shows the structural schematic diagrams for the projection film that another embodiment of the application provides；
The structural schematic diagram for the projection film that the another embodiment that Fig. 3 shows the application provides；
The structural schematic diagram for the projection film that another embodiment that Fig. 4 shows the application provides；
The structural schematic diagram for the projection film that another embodiment that Fig. 5 shows the application provides；And
Fig. 6 to Fig. 8 shows the schematic diagram of the luminescent spectrum of three kinds of fluorescence coatings and the spectrum of its corresponding exciting light.
Wherein, above-mentioned attached drawing includes the following drawings label：
1, substrate；2, feux rouges fluorescence coating；3, the first filter layer；4, green-emitting fluorescent layer；5, the second filter layer；6, blue phosphor
Layer.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
It should be understood that when element (such as layer, film, region or substrate) is described as at another element "upper", this yuan
Part can be directly on another element, or intermediary element also may be present.Moreover, in specification and claims, when
When description has element " connected " to another element, which " can be directly connected to " to another element, or pass through third element
" electrical connection " is to another element.
As background technique is introduced, the light transmittance of the visible light of projection film in the prior art is lower, in order to solve
Technical problem as above, present applicant proposes a kind of projection film and including its optical projection system.
In a kind of typical embodiment of the application, a kind of projection film is provided, above-mentioned projection film includes at least two
Different fluorescence coatings, each above-mentioned fluorescence coating are feux rouges fluorescence coating 2, green-emitting fluorescent layer 4 or blue phosphor layer 6, wherein above-mentioned feux rouges
Fluorescence coating 2 includes red light flourescent material, can issue feux rouges, as shown in Figure 6；Above-mentioned green-emitting fluorescent layer 4 includes green-emitting fluorescent material
Material, can issue green light, as shown in Figure 7；Above-mentioned blue phosphor layer 6 includes blue-light fluorescent material, can issue blue light, such as Fig. 8
It is shown；Above-mentioned red light flourescent material, above-mentioned green-emitting fluorescent material and above-mentioned blue-light fluorescent material are greater than the excitation of 400nm in wavelength
Under the excitation of light, do not shine, and the excitation wavelength of above-mentioned red light flourescent material, the excitation wavelength of above-mentioned green-emitting fluorescent material and on
The excitation wavelength for stating blue-light fluorescent material is different, and the wavelength of the exciting light of various fluorescent materials is excited not to be overlapped.Wherein, Fig. 1
Shown in include three fluorescence coatings in projection film.
Fluorescent material in each fluorescence coating can issue corresponding light under the excitation of ultraviolet light, wherein feux rouges fluorescence coating hair
Feux rouges out；Green-emitting fluorescent layer issues green light；Blue phosphor layer issues blue light.It include multiple and different fluorescence coatings by the projection film,
By the ultraviolet excitation of different-waveband, the light of available different colours so that the projection film can show it is full-color
Image, and the feux rouges of the projection film, blue light and/or green light mainly by diffraction shine, so that the mist degree of projection film compared with
Small, light transmittance is higher.
Above-mentioned red light flourescent material, green-emitting fluorescent material and blue-light fluorescent material can be independently selected from containing rare earth member
In the inorganic nanometer oxide of element, the luminous organic material containing unsaturated bond and the metal-organic complex containing rare earth element extremely
Few one kind.Certain above-mentioned red light flourescent material, green-emitting fluorescent material and blue-light fluorescent material be not identical, and is not limited to above-mentioned
Different materials, can also be other can issue feux rouges or green under the excitation of the exciting light with above-mentioned excitation wavelength
The fluorescent material of light, those skilled in the art can select suitable red light flourescent material or green-emitting fluorescent material according to the actual situation
Material.
In a kind of embodiment of the application, above-mentioned red light flourescent material swashs the exciting light that wavelength is 200nm~325nm
Sending feux rouges is given, above-mentioned green-emitting fluorescent material issues green light under the excitation for the exciting light that wavelength is 230nm~380nm；On
It states blue-light fluorescent material and issues blue light under the excitation for the exciting light that wavelength is 300nm~400nm.
It should be noted that, although the wave-length coverage of the exciting light of excitation red light flourescent material, excitation green-emitting fluorescent material
Exciting light wave-length coverage and excite the wave-length coverage of the exciting light of blue-light fluorescent material to have an overlapping, but in practical excitation,
The wave band not overlapped can be selected to excite respectively.
Specifically, when projection film includes two or three fluorescence coatings, optical filtering can be set before corresponding fluorescence coating
Layer will can excite the wave band of other fluorescent materials except predetermined fluorescent material to filter out in incident light, for example, when along remote
When direction from light incidence is disposed with feux rouges fluorescence coating, filter layer and green-emitting fluorescent layer, the wavelength of feux rouges fluorescence coating is excited
For 200~325nm, filter layer will can excite the wave band of green-emitting fluorescent material to filter out in this part light, to avoid the part light
Green light can be excited.It is, of course, also possible to the exciting light of both fluorescent materials cannot be excited to excite respectively simultaneously by selection
Both fluorescent materials between 200~230nm and are not the excitation red light flourescent material of 230nm, wavelength such as wavelength
It between 325~380nm and is not the excitation green-emitting fluorescent material of 325nm.
In a kind of embodiment of the application, as shown in fig. 6, above-mentioned red light flourescent material is 200nm~280nm's in wavelength
The feux rouges that wavelength is 550~700nm is issued under the excitation of exciting light.
In another embodiment of the application, as shown in fig. 7, above-mentioned green-emitting fluorescent material is 260nm~320nm in wavelength
Exciting light excitation under issue wavelength be 500~550nm green light.
In the another embodiment of the application, as shown in figure 8, above-mentioned blue-light fluorescent material is 350nm~400nm in wavelength
Exciting light excitation under issue wavelength be 380~570nm blue light.
As shown in Figure 1, along the direction of incident light, above-mentioned projection film includes successively setting in one of the application embodiment
Feux rouges fluorescence coating 2, green-emitting fluorescent layer 4 and the blue phosphor layer 6 set.
Certainly, when the projection film in the application includes three above-mentioned fluorescence coatings, sequence of positions is not limited to above-mentioned
Sequence, those skilled in the art can reasonably adjust three positions for answering optical material layer according to the actual situation.
The Partial filtration that fluorescent powder excitation wavelength is overlapped is fallen for the ease of setting filter layer, it is preferred that excitation wavelength range
Relatively narrow fluorescence coating is arranged close to projector end.
The same exciting light inspires a variety of different colors simultaneously in order to prevent, so that the color for the light that projection film issues
For scheduled color, i.e., the image that projection film is shown is scheduled image, in a kind of embodiment of the application as shown in Fig. 2, on
Stating projection film further includes the first filter layer 3, the setting of the first filter layer 3 above-mentioned green-emitting fluorescent layer 4 and above-mentioned feux rouges fluorescence coating 2 it
Between, above-mentioned first filter layer 3 will excite above-mentioned green-emitting fluorescent layer 4 in the incident light for being used to excite above-mentioned feux rouges fluorescence coating 2
Light filter out, avoid incident light at the same excite green-emitting fluorescent layer shine, that is, avoid green-emitting fluorescent layer shine.
It should be noted that the above-mentioned incident light for exciting feux rouges fluorescence coating may not only include corresponding feux rouges fluorescence coating
Excitation wave band, it is also possible to the wave band including feux rouges fluorescence coating cannot be excited.
In another embodiment of the application, as shown in figure 3, above-mentioned projection film further includes the second filter layer 5, second filters
Layer 5 is arranged between above-mentioned green-emitting fluorescent layer 4 and above-mentioned blue phosphor layer 6, and above-mentioned second filter layer 5 will be used to excite above-mentioned green
Above-mentioned blue phosphor layer 6 is excited in the incident light of optical fluorescence 4 and incident light for exciting above-mentioned feux rouges fluorescence coating 2
Light filters out, and then avoids incident light while exciting blue phosphor layer, i.e., blue phosphor layer shines, and further ensures projection film hair
The color of light out is scheduled color, i.e., the image that projection film is shown is scheduled image.
It should be noted that above-mentioned incident light for exciting green-emitting fluorescent layer and above-mentioned for exciting feux rouges fluorescence coating
Incident light all may include the wave band that can excite feux rouges fluorescence coating, it is also possible to the wave band including that cannot excite green-emitting fluorescent layer.
In the another embodiment of the application, as shown in figure 4, above-mentioned projection film includes simultaneously the first filter layer 3 and second
Filter layer 5, above-mentioned first filter layer 3 will excite above-mentioned green light glimmering in the incident light for being used to excite above-mentioned feux rouges fluorescence coating 2
The light of photosphere 4 filters out, and above-mentioned second filter layer 5 is by the incident light for being used to excite above-mentioned green-emitting fluorescent layer 4 and is used to excite above-mentioned
The light for exciting above-mentioned blue phosphor layer 6 in the incident light of feux rouges fluorescence coating 2 filters out.To further ensure projection film hair
The color of light out is scheduled color, i.e., the image that projection film is shown is scheduled image.
The material of the first filter layer and the second filter layer in the application can be the material of filter layer in the prior art,
As long as the light of corresponding wavelength range can be filtered out.The material of above-mentioned the first filter layer and the second filter layer can be choosing
The dyestuff that selecting property absorbs, or selective reflection is carried out to spectrum using sputtering mode.
In a kind of embodiment of the application, above-mentioned red light flourescent material, above-mentioned green-emitting fluorescent material and above-mentioned blue phosphor
Material can only include organic fluorescence independently selected from organic fluorescence materials and/or inorganic fluorescent material, i.e. every kind of fluorescent material
Material can also only include inorganic fluorescent material, can also simultaneously include organic fluorescence materials and inorganic fluorescent material.These three
Fluorescent material can be the fluorescent material of same type, be also possible to different types of fluorescent material.Those skilled in the art can
To select suitable fluorescent material to form three above-mentioned fluorescence coatings according to the actual situation.
In another embodiment of the application, above-mentioned red light flourescent material, above-mentioned green-emitting fluorescent material and/or above-mentioned blue light
Fluorescent material includes inorganic fluorescent material, and the partial size of above-mentioned inorganic fluorescent material is less than 400nm, can be further ensured that in this way
Feux rouges and green light are based on diffraction, to further decrease the mist degree of projection film and improve light transmittance.
In another embodiment in the application, each above-mentioned fluorescence coating further includes resin, and fluorescent material is dispersed in resin,
Above-mentioned resin is light-cured resin, heat reactive resin and/or thermoplastic resin.Those skilled in the art can be according to the actual situation
Select suitable resin as the material of main part of fluorescence coating.
In order to further ensure feux rouges fluorescence coating and green-emitting fluorescent layer are more stable, reliability is higher, and convenient for production, originally
In a kind of embodiment of application, above-mentioned resin is pressure sensitive adhesive (PSA glue), and above-mentioned fluorescence coating further includes solvent, which can be molten
Solve corresponding red light flourescent material and green-emitting fluorescent material.
In order to preferably dissolve corresponding red light flourescent material and green-emitting fluorescent material, in a kind of embodiment of the application,
Above-mentioned solvent is N-Methyl pyrrolidone.
In order to further ensure feux rouges fluorescence coating and green-emitting fluorescent layer can be formed preferably, and more stable, the application
A kind of embodiment in, in above-mentioned fluorescence coating, the weight percent of above-mentioned pressure sensitive adhesive is 5%~80%, above-mentioned N- methylpyrrole
The weight percent of alkanone is 10%~90%, and the weight percent of above-mentioned red light flourescent material or above-mentioned green-emitting fluorescent material is
1.0%~10%.
In the manufacturing process of fluorescence coating, PSA glue is added in clean conical flask, NMP (N- crassitude is added
Ketone), mixed liquor is diluted to 15% and consolidates and contains, after magnetic agitation stirs 10min, is added corresponding fluorescent material, 40~50 DEG C
After magnetic stirs 0.5h, the coating fluid of fluorescence coating is obtained.Finally, applied coating solution, then solidifies, corresponding fluorescence coating is obtained.
It should be noted that the addition sequence of above-mentioned pressure sensitive adhesive and solvent and being not fixed, can be added together, it can also
To be added simultaneously, those skilled in the art can select suitable order of addition according to the actual situation, not be described in more detail here.
In order to facilitate the production of fluorescence coating, and fluorescence coating is protected, obtains the projection film for being not easy to be damaged, such as Fig. 5
Shown, in a kind of embodiment of the application, above-mentioned projection film further includes substrate 1, and multiple above-mentioned fluorescence coatings are along far from above-mentioned substrate 1
Direction be sequentially stacked be arranged on above-mentioned substrate 1.
In order to preferably be protected to fluorescence coating, in a kind of embodiment not shown in the figure of the application, above-mentioned substrate 1
There are two, it is first base material and the second substrate respectively, above-mentioned multiple fluorescence coatings are arranged in above-mentioned first base material and above-mentioned second base
Between material.
Substrate in the application can be any transparent substrate in the prior art, ratio PET, PE etc., ability
Field technique personnel can select suitable material to form the substrate of the application according to the actual situation.
In order to further ensure projection film light transmittance with higher, meanwhile, in order to enable projection film has lesser mist
It spends, in a kind of embodiment of the application, the light transmittance of above-mentioned substrate 1 is greater than 80%, and the mist degree of above-mentioned substrate is less than 3%.
In the another embodiment of the application, the light transmittance of above-mentioned substrate 1 is greater than 90%, and the mist degree of above-mentioned substrate 1 is less than
1%.It can be further ensured that projection film light transmittance with higher and lesser mist degree in this way, so that the drop shadow effect of image is more
It is good, viewer is further ensured with preferable viewing experience.
It should be noted that the light transmittance in the application just refers to the light transmittance of visible light.
In the typical embodiment of the another kind of the application, a kind of optical projection system is provided, which includes projection
Film, the projection film are above-mentioned any projection film.
The optical projection system is due to above-mentioned projection film, thus light transmittance with higher and lesser mist degree, so that
Viewer has good viewing experience.
Certainly, in a kind of embodiment of the application, above-mentioned optical projection system further includes laser, and the laser is for sending pair
The exciting light answered, so that projection film be excited to show corresponding image.
It can be seen from the above description that the application the above embodiments realize following technical effect：
1), in the projection film of the application, the fluorescent material in each fluorescence coating can issue corresponding under the excitation of ultraviolet light
Light, wherein feux rouges fluorescence coating issues feux rouges；Green-emitting fluorescent layer issues green light；Blue phosphor layer issues blue light.By the projection film packet
Multiple and different fluorescence coatings is included, by the ultraviolet excitation of different-waveband, the light of available different colours, so that the throwing
Shadow film can show full-color image, and the feux rouges of the projection film, blue light and/or green light are mainly shone by diffraction, in this way
So that the mist degree of projection film is smaller, light transmittance is higher.
2), the optical projection system of the application is due to above-mentioned projection film, thus light transmittance with higher with it is lesser
Mist degree, so that viewer has good viewing experience.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
1. a kind of projection film, which is characterized in that the projection film includes at least two different fluorescence coatings, and each fluorescence coating is
Feux rouges fluorescence coating (2), green-emitting fluorescent layer (4) or blue phosphor layer (6), wherein the feux rouges fluorescence coating (2) includes feux rouges fluorescence
Material, the green-emitting fluorescent layer (4) includes green-emitting fluorescent material, and the blue phosphor layer (6) includes blue-light fluorescent material, described
The excitation of red light flourescent material, the green-emitting fluorescent material and the blue-light fluorescent material in exciting light of the wavelength greater than 400nm
Under do not shine, and the excitation wavelength of the red light flourescent material, the excitation wavelength of the green-emitting fluorescent material and the blue light are glimmering
The excitation wavelength of luminescent material is different.
2. projection film according to claim 1, which is characterized in that the red light flourescent material wavelength be 200nm~
Feux rouges is issued under the excitation of the exciting light of 325nm, the green-emitting fluorescent material is in the exciting light that wavelength is 230nm~380nm
Excitation is lower to issue green light；The blue-light fluorescent material issues blue light under the excitation for the exciting light that wavelength is 300nm~400nm；
It is preferred that the red light flourescent material wavelength be 200nm~280nm exciting light excitation under issue wavelength be 550~700nm
Feux rouges；The further preferred green-emitting fluorescent material issues wavelength under the excitation for the exciting light that wavelength is 260nm~320nm
For the green light of 500~550nm, the still more preferably described blue-light fluorescent material is in the exciting light that wavelength is 350nm~400nm
Excitation is lower to issue the blue light that wavelength is 380~570nm.
3. projection film according to claim 1, which is characterized in that along the direction of incident light, the projection film includes successively
The feux rouges fluorescence coating (2) of setting, green-emitting fluorescent layer (4) and blue phosphor layer (6).
4. projection film according to claim 3, which is characterized in that the projection film further includes：
First filter layer (3) is arranged between the green-emitting fluorescent layer (4) and the feux rouges fluorescence coating (2), and described first filters
Layer (3) filters out the light for exciting the green-emitting fluorescent layer (4) in the incident light for being used to excite the feux rouges fluorescence coating (2).
5. projection film according to claim 3, which is characterized in that the projection film further includes：
Second filter layer (5) is arranged between the green-emitting fluorescent layer (4) and the blue phosphor layer (6), and described second filters
Layer (5) will be in the incident light that be used to excite the green-emitting fluorescent layer (4) and incident light for exciting the feux rouges fluorescence coating (2)
The light for exciting the blue phosphor layer (6) filter out.
6. projection film according to claim 1, which is characterized in that the red light flourescent material, the green-emitting fluorescent material
With the blue-light fluorescent material independently selected from organic fluorescence materials and/or inorganic fluorescent material；When the red light flourescent material,
When the green-emitting fluorescent material and/or the blue-light fluorescent material include inorganic fluorescent material, the preferably described inorganic fluorescent material
Partial size be less than 400nm.
7. projection film according to claim 1, which is characterized in that the fluorescence coating further includes resin, and the resin is light
Solidified resin, heat reactive resin and/or thermoplastic resin.
8. projection film according to claim 7, which is characterized in that the resin is pressure sensitive adhesive, and the fluorescence coating further includes
Solvent, the solvent are N-Methyl pyrrolidone, and in the further preferred fluorescence coating, the weight percent of the pressure sensitive adhesive is
5%~80%, the weight percent of the N-Methyl pyrrolidone is 10%~90%, the weight percent of the fluorescent material
It is 1.0%~10%.
9. projection film according to claim 1, which is characterized in that the projection film further includes：
Substrate (1), multiple fluorescence coatings are sequentially stacked along the direction far from the substrate (1) to be arranged on the substrate (1),
It is preferred that the light transmittance of the substrate (1) is greater than 80%, the mist degree of the substrate (1) is less than 3%；The further preferred base
The light transmittance of material (1) is greater than 90%, and the mist degree of the substrate (1) is less than 1%.
10. a kind of optical projection system, including projection film, which is characterized in that the projection film is any one of claims 1 to 9 institute
The projection film stated.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810864261.6A CN108919599A (en) | 2018-08-01 | 2018-08-01 | Projection film with include its optical projection system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810864261.6A CN108919599A (en) | 2018-08-01 | 2018-08-01 | Projection film with include its optical projection system |
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| CN108919599A true CN108919599A (en) | 2018-11-30 |
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| CN201810864261.6A Pending CN108919599A (en) | 2018-08-01 | 2018-08-01 | Projection film with include its optical projection system |
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| CN113075853A (en) * | 2021-03-16 | 2021-07-06 | 江西欧迈斯微电子有限公司 | Projection film and projection apparatus |
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