CN110471248A - A kind of anti-light layer of Fresnel projection screen and Fresnel projection screen - Google Patents
A kind of anti-light layer of Fresnel projection screen and Fresnel projection screen Download PDFInfo
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- CN110471248A CN110471248A CN201810444670.0A CN201810444670A CN110471248A CN 110471248 A CN110471248 A CN 110471248A CN 201810444670 A CN201810444670 A CN 201810444670A CN 110471248 A CN110471248 A CN 110471248A
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- light
- layer
- ontology
- fresnel
- projection screen
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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
Abstract
The invention discloses a kind of anti-light layer of Fresnel projection screen and Fresnel projection screens, are related to projection display technique field, can promote the ability of existing Fresnel projection screen environment resistant light.The anti-light layer of the Fresnel projection screen includes stratiform ontology, and layered ontology absorbs light total reflection, hypersorption or a part reflection a part of its all band for penetrating the light of three wave bands of RGB；Or for reflecting the light of three wave bands of RGB, by light absorption at least part of its all band.The present invention is used for Fresnel projection screen.
Description
Technical field
The present invention relates to projection display technique field more particularly to a kind of Fresnel projection screen anti-light layer and Fresnels
Projection screen.
Background technique
In field of projection display, especially in recent years more burning hot ultrashort burnt laser projection display field, projector is general
The Fresnel projection screen that can arrange in pairs or groups uses, and the characteristics of screen is that high gain, visual angle are small, has certain environment resistant light ability,
Display effect is good.
Referring to Fig.1, the principle of the screen environment resistant light are as follows: light-illuminating to screen surface (light a), a portion quilt
Screen reflection (light b), another part enter screen (light c) reflects to form light d by Fresnel layer 01 and reflecting layer 02,
Screen is finally projected with light e；It, will not be to the viewing effect of human eye 03 since light b and light e not can enter human eye 03
It has an impact, that is, screen has the ability of environment resistant light.
However, light d had when by diffusion layer 04 small part light directly be emitted into human eye 03 (light f), into
And the viewing effect (intuitively showing as the reduction of screen-picture contrast, image whitens) of human eye 03 is influenced, that is, screen environment resistant
The scarce capacity of light.
Summary of the invention
The embodiment of the present invention provides a kind of anti-light layer of Fresnel projection screen and Fresnel projection screen, can be promoted existing
There is the ability of Fresnel projection screen environment resistant light.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that
The embodiment of the invention provides a kind of anti-light layer of Fresnel projection screen, including stratiform ontology, layered
Body makes light total reflection, hypersorption or a part reflection a part of its all band for penetrating the light of three wave bands of RGB
It absorbs；Or for reflecting the light of three wave bands of RGB, by light absorption at least part of its all band.
The embodiment of the invention also provides a kind of Fresnel projection screens, including the expansion set gradually along light incident direction
Layer and Fresnel layer are dissipated, further includes above-mentioned anti-light layer；When layered ontology is for penetrating the light of three wave bands of RGB, make
When the light total reflection of its all band, layered ontology is set to the incident side of the diffusion layer；When layered ontology is for making
The light of three wave bands of RGB penetrates, layered when absorbing the light hypersorption of its all band or a part reflection a part
Ontology is set to the incident side of the diffusion layer or is set between the diffusion layer and the Fresnel layer；When layered ontology is used
It is reflected in by the light of three wave bands of RGB, when by light absorption at least part of its all band, layered ontology is set to institute
It states on the reflecting surface of Fresnel layer.
The anti-light layer of Fresnel projection screen provided in an embodiment of the present invention and Fresnel projection screen, due to including stratiform
Ontology, layered ontology make light total reflection, the hypersorption or one of its all band for penetrating the light of three wave bands of RGB
Part is reflected a part and is absorbed；Or for reflecting the light of three wave bands of RGB, by the light absorption of its all band at least one
Point, it therefore,, can when making the light total reflection of its all band when layered ontology is for penetrating the light of three wave bands of RGB
Layered ontology is set to the incident side of Fresnel projection screen diffusion layer；When layered ontology is for making RGB three
The light of wave band penetrates, and when absorbing the light hypersorption of its all band or a part reflection a part, can set layered ontology
Incident side in Fresnel projection screen diffusion layer or between the diffusion layer and Fresnel layer set on Fresnel projection screen；Work as institute
Stratiform ontology is stated for reflecting the light of three wave bands of RGB, it, can be by institute when by light absorption at least part of its all band
Stratiform ontology is stated on the reflecting surface of Fresnel projection screen Fresnel layer；
When layered ontology is set to the incident side of Fresnel projection screen diffusion layer, the environment light of stratiform ontology is reached
In, the only light of three wave bands of RGB can pass through stratiform ontology and diffusion layer (light c), and after through Fresnel layer reflection
At light d, the light of all band cannot penetrate stratiform ontology and diffusion layer, therefore light d, and it is few compared with light d, therefore light
D is directly emitted the light f for entering human eye when by diffusion layer, also few compared with light f, to reduce to human eye viewing effect
Influence, that is, improve the ability of Fresnel projection screen environment resistant light；
When between the diffusion layer and Fresnel layer that layered ontology is set to Fresnel projection screen, stratiform ontology is reached
Environment light in, the light of three wave bands of RGB can be through being reflected after stratiform ontology by Fresnel layer, and the light of all band can quilt
Stratiform bulk absorption at least part, to keep the light d of the environment light being emitted by diffusion layer compared with prior art few, therefore
Light into human eye is also few compared with the light f of the prior art, to reduce the influence to human eye viewing effect, that is, improves phenanthrene
The ability of Nie Er projection screen environment resistant light；
When layered ontology is set on the reflecting surface of Fresnel projection screen Fresnel layer, the ring of stratiform ontology is reached
In the light of border, the light of three wave bands of RGB can be by stratiform proprioceptive reflex, and the light of all band can be by stratiform bulk absorption at least one
Part, to keep the environment light light d compared with prior art being emitted by diffusion layer few, therefore enter the light of human eye also compared with
The light f of the prior art is few, to reduce the influence to human eye viewing effect, that is, improves Fresnel projection screen environment resistant
The ability of light.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
It obtains other drawings based on these drawings.
Fig. 1 is the schematic diagram of existing Fresnel projection screen environment resistant light；
Fig. 2 is the schematic diagram that Fresnel of embodiment of the present invention projection screen is set to protective layer incident side with anti-light layer；
Fig. 3 is the signal that Fresnel of embodiment of the present invention projection screen is set between protective layer and diffusion layer with anti-light layer
Figure；
Fig. 4 is the signal that Fresnel of embodiment of the present invention projection screen is set between diffusion layer and Fresnel layer with anti-light layer
Figure；
Fig. 5 is the schematic diagram that Fresnel of embodiment of the present invention projection screen is set on Fresnel layer reflecting surface with anti-light layer；
Fig. 6 is the transmittance curve schematic diagram of the anti-light layer of Fresnel of embodiment of the present invention projection screen；
Fig. 7 is RGBW formula；
Fig. 8 is mosaic；
Fig. 9 is trigonometric expression；
Figure 10 is straight strip type；
Figure 11 is four picture element formulas.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiment is only one section of point of embodiment of the invention, rather than the embodiment of full section.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that, term " center ", "upper", "lower", "front", "rear", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "top", "bottom", "inner", "outside" is based on the figure
Orientation or positional relationship is merely for convenience of description of the present invention and simplification of the description, rather than the device of indication or suggestion meaning or
Element must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
Fig. 2 to Figure 11 is a specific embodiment of the anti-light layer 1 of Fresnel of embodiment of the present invention projection screen, this implementation
Fresnel projection screen anti-light layer 1, including stratiform ontology in example, layered ontology is for making three wave bands of RGB
Light penetrates, and absorbs light total reflection, hypersorption or a part reflection a part of its all band；Or it is used for three waves of RGB
The light reflection of section, by light absorption at least part of its all band.
The anti-light layer 1 of Fresnel projection screen provided in an embodiment of the present invention, due to include stratiform ontology, layered
Body makes light total reflection, hypersorption or a part reflection a part of its all band for penetrating the light of three wave bands of RGB
It absorbs；Or for reflecting the light of three wave bands of RGB, by light absorption at least part of its all band, therefore, when described
Stratiform ontology, can be by layered ontology when making the light total reflection of its all band for penetrating the light of three wave bands of RGB
Set on the incident side (Fig. 2 and Fig. 3) of Fresnel projection screen diffusion layer 2；When layered ontology is for making three waves of RGB
The light of section penetrates, and when absorbing the light hypersorption of its all band or a part reflection a part, can be set to layered ontology
The incident side (Fig. 2 and Fig. 3) of Fresnel projection screen diffusion layer 2 or diffusion layer 2 and Fresnel set on Fresnel projection screen
Between layer 3 (Fig. 4)；When layered ontology is used for by the light reflection of three wave bands of RGB, extremely by the light absorption of its all band
When few a part, layered ontology can be set on the reflecting surface of Fresnel projection screen Fresnel layer 3 (Fig. 5)；
When layered ontology is set to incident side (Fig. 2 and Fig. 3) of Fresnel projection screen diffusion layer 2, stratiform is reached
In the environment light of ontology, the only light of three wave bands of RGB can pass through stratiform ontology and diffusion layer 2 (light c), and after through phenanthrene
Nie Er layer 3 reflects to form light d, the light of all band cannot penetrate stratiform ontology and diffusion layer 2, therefore light d, relatively light
Line d is few, therefore light d, and the light f for entering human eye 03 is directly emitted when by diffusion layer 2, also few compared with light f, to reduce
Influence to 03 viewing effect of human eye, that is, improve the ability of Fresnel projection screen environment resistant light；
As (Fig. 4) between the diffusion layer 2 and Fresnel layer 3 that layered ontology is set to Fresnel projection screen, reach
In the environment light of stratiform ontology, the light of three wave bands of RGB is reflected after penetrating stratiform ontology by Fresnel layer 3, all band
Light can be by stratiform bulk absorption at least part, to make the light of the environment light being emitted by diffusion layer 2 compared with prior art
Line d is few, therefore the light for entering human eye 03 is also few compared with the light f of the prior art, to reduce to 03 viewing effect of human eye
It influences, that is, improves the ability of Fresnel projection screen environment resistant light；
When layered ontology is set to (Fig. 5) on the reflecting surface of Fresnel projection screen Fresnel layer 3, stratiform sheet is reached
In the environment light of body, the light of three wave bands of RGB can be by stratiform proprioceptive reflex, and the light of all band can be by stratiform bulk absorption
At least partially, to keep the light d of the environment light being emitted by diffusion layer 2 compared with prior art few, therefore enter human eye 03
Light it is also few compared with the light f of the prior art, to reduce the influence to 03 viewing effect of human eye, that is, improve Fresnel throwing
The ability of shadow screen environment resistant light.
Specifically, being used to correspond to the region of each pixel of Fresnel projection screen on layered ontology includes red filter
Photon region R, green filter subregion G and blue filter subregion B, correspond to Fresnel projection screen on stratiform ontology as a result,
The region of each pixel of curtain can be such that the light of three wave bands of RGB penetrates, and make the light absorption of its all band.Specifically have following several
Kind implementation, as shown in figs. 7 to 11.
The wave-length coverage of the light of RGB three described in the present embodiment wave band be followed successively by 610nm~650nm, 500nm~
540nm, 430nm~460nm, it is anti-light in the present embodiment since the RGB light color of these three wave-length coverages is corrected
Layer 1 can make the display effect of Fresnel projection screen picture more preferable.
In one particular embodiment of the present invention, the wave-length coverage of the light of three wave bands of RGB is followed successively by
630nm~640nm, 510nm~520nm, 440nm~450nm, at this point, the anti-light layer 1 is adapted to Fresnel projection screen only
The laser projection of the light of above three wave-length coverage can be issued.Fig. 6 is the transmittance curve of anti-light layer 1, and T is transmitance.
The thickness of layered ontology is preferably 10 μm~200 μm, thus on the one hand be can avoid due to stratiform ontology is blocked up
On the other hand the problem for causing Fresnel projection screen blocked up can avoid leading to anti-light 1 environment resistant of layer because stratiform ontology is excessively thin
The problem of ability of light reduces.
The material of layered ontology is preferably the fluoride of silica, the fluoride of lithium, the fluoride of magnesium or calcium, by
It is higher compared to the stability of other materials in these four materials, therefore the stability of anti-light 1 function of layer can be promoted.
The embodiment of the invention also provides a kind of Fresnel projection screens, including the expansion set gradually along light incident direction
Layer 2 and Fresnel layer 3 are dissipated, further includes anti-light layer 1 described in any of the above-described embodiment；When layered ontology is for making RGB
The light of three wave bands penetrates, and when making the light total reflection of its all band, layered ontology is set to the incident side of diffusion layer 2；Work as institute
Stratiform ontology is stated for penetrating the light of three wave bands of RGB, makes the light hypersorption or a part reflection a part of its all band
When absorption, layered ontology is set to the incident side of diffusion layer 2 or is set between diffusion layer 2 and Fresnel layer 3；When layered
Ontology is used to reflect the light of three wave bands of RGB, when by light absorption at least part of its all band, layered ontology
On the reflecting surface of Fresnel layer 3.
Fresnel projection screen provided in an embodiment of the present invention, since anti-light layer 1 includes stratiform ontology, layered ontology
For penetrating the light of three wave bands of RGB, inhale light total reflection, hypersorption or a part reflection a part of its all band
It receives；Or for reflecting the light of three wave bands of RGB, by light absorption at least part of its all band；When layered ontology
For penetrating the light of three wave bands of RGB, when making the light total reflection of its all band, layered ontology is set to diffusion layer 2
Incident side (Fig. 2 and Fig. 3)；When layered ontology is for penetrating the light of three wave bands of RGB, keep the light of its all band complete
Absorb or a part reflection a part absorb when, layered ontology be set to diffusion layer 2 incident side (Fig. 2 and Fig. 3) or be set to
Between diffusion layer 2 and Fresnel layer 3 (Fig. 4)；When layered ontology is used to reflect the light of three wave bands of RGB, by other
When light absorption at least part of wave band, layered ontology is set on the reflecting surface of Fresnel layer 3 (Fig. 5)；
Therefore, when layered ontology is set to incident side (Fig. 2 and Fig. 3) of diffusion layer 2, the environment of stratiform ontology is reached
In light, the only light of three wave bands of RGB can pass through stratiform ontology and diffusion layer 2 (light c), and after it is anti-through Fresnel layer 3
It penetrates to form light d, the light of all band cannot penetrate stratiform ontology and diffusion layer 2, therefore light d, and it is few compared with light d, therefore
Light d is directly emitted the light f for entering human eye 03 when by diffusion layer 2, also few compared with light f, to reduce to human eye 03
The influence of viewing effect improves the ability of Fresnel projection screen environment resistant light；
When layered ontology is set to (Fig. 4) between diffusion layer 2 and Fresnel layer 3, the environment light of stratiform ontology is reached
In, the light of three wave bands of RGB can be through being reflected after stratiform ontology by Fresnel layer 3, and the light of all band can be by stratiform ontology
At least part is absorbed, to keep the light d of the environment light being emitted by diffusion layer 2 compared with prior art few, therefore enters people
The light of eye 03 is also few compared with the light f of the prior art, to reduce the influence to 03 viewing effect of human eye, that is, improves Fei Nie
The ability of your projection screen environment resistant light；
When layered ontology is set to (Fig. 5) on the reflecting surface of Fresnel layer 3, in the environment light of arrival stratiform ontology,
The light of three wave bands of RGB can by stratiform proprioceptive reflex, the light of all band can by stratiform bulk absorption at least part, from
And keep the light d of the environment light being emitted by diffusion layer 2 compared with prior art few, therefore the light for entering human eye 03 is also more existing
The light f of technology is few, to reduce the influence to 03 viewing effect of human eye, that is, improves Fresnel projection screen environment resistant light
Ability.
Further, the Fresnel projection screen in the present embodiment further includes the protective layer 4 set on 2 incident side of diffusion layer,
To carry out the protection such as waterproof, anticollision to screen, at this point, layered ontology can be set between protective layer 4 and diffusion layer 2 (Fig. 3),
It can also be set to the incident side (Fig. 2) of protective layer 4, it can also be with protective layer 4 as one.
Layered ontology preferably uses vacuum evaporation process to form, and compares other molding modes, this molding mode is more
Add simply, it is easy to accomplish.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (9)
1. a kind of anti-light layer of Fresnel projection screen, which is characterized in that including stratiform ontology, layered ontology is red for making
The light of turquoise three wave bands penetrates, and absorbs light total reflection, hypersorption or a part reflection a part of its all band；Or it is used for
The light of three wave bands of RGB is reflected, by light absorption at least part of its all band.
2. anti-light layer according to claim 1, which is characterized in that for corresponding to Fresnel projection screen on layered ontology
The region of each pixel of curtain includes red filter subregion, green filter subregion and blue filter subregion.
3. anti-light layer according to claim 1, which is characterized in that the wave-length coverage of the light of three wave bands of RGB according to
Secondary is 610nm~650nm, 500nm~540nm, 430nm~460nm.
4. anti-light layer according to claim 3, which is characterized in that the wave-length coverage of the light of three wave bands of RGB according to
Secondary is 630nm~640nm, 510nm~520nm, 440nm~450nm.
5. anti-light layer according to claim 1, which is characterized in that layered ontology with a thickness of 10 μm~200 μm.
6. anti-light layer according to claim 1, which is characterized in that the material of layered ontology is silica, lithium
The fluoride of fluoride, the fluoride of magnesium or calcium.
7. a kind of Fresnel projection screen, including the diffusion layer and Fresnel layer set gradually along light incident direction, feature
It is, further includes anti-light layer according to any one of claims 1 to 6；
When layered ontology is for penetrating the light of three wave bands of RGB, when making the light total reflection of its all band, the layer
Shape ontology is set to the incident side of the diffusion layer；
When layered ontology is for penetrating the light of three wave bands of RGB, the light hypersorption for making its all band or a part are instead
When penetrating a part absorption, layered ontology is set to the incident side of the diffusion layer or is set to the diffusion layer and the Fresnel
Between layer；
When layered ontology is used to reflect the light of three wave bands of RGB, by light absorption at least part of its all band
When, layered ontology is set on the reflecting surface of the Fresnel layer.
8. Fresnel projection screen according to claim 7, which is characterized in that further include being set to the diffusion layer incident side
Protective layer, layered ontology be set to the diffusion layer incident side include be set between the protective layer and the diffusion layer
Or the incident side set on the protective layer.
9. Fresnel projection screen according to claim 7, which is characterized in that layered ontology uses vacuum evaporation work
Skill molding.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810444670.0A CN110471248A (en) | 2018-05-10 | 2018-05-10 | A kind of anti-light layer of Fresnel projection screen and Fresnel projection screen |
| PCT/CN2019/075617 WO2019201012A1 (en) | 2018-04-16 | 2019-02-20 | Fresnel projection screen and projection system |
| US17/036,685 US11231644B2 (en) | 2018-04-16 | 2020-09-29 | Fresnel projection screen and projection system |
| US17/551,812 US11635678B2 (en) | 2018-04-16 | 2021-12-15 | Fresnel projection screen and projection system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810444670.0A CN110471248A (en) | 2018-05-10 | 2018-05-10 | A kind of anti-light layer of Fresnel projection screen and Fresnel projection screen |
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| CN110471248A true CN110471248A (en) | 2019-11-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810444670.0A Pending CN110471248A (en) | 2018-04-16 | 2018-05-10 | A kind of anti-light layer of Fresnel projection screen and Fresnel projection screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114660883A (en) * | 2020-12-22 | 2022-06-24 | 宁波激智科技股份有限公司 | Ambient light resistant laser television screen and preparation method thereof |
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| CN104460213A (en) * | 2014-12-26 | 2015-03-25 | 成都宽显科技有限责任公司 | Projection screen and projection display system |
| JP2015068943A (en) * | 2013-09-27 | 2015-04-13 | 大日本印刷株式会社 | Reflection screen, manufacturing method of the same, and video display system |
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| CN1493891A (en) * | 2002-08-29 | 2004-05-05 | ���ձ�ӡˢ��ʽ���� | Diffusion film for transmission screen and transmission screen |
| JP2015068943A (en) * | 2013-09-27 | 2015-04-13 | 大日本印刷株式会社 | Reflection screen, manufacturing method of the same, and video display system |
| CN203673213U (en) * | 2013-12-16 | 2014-06-25 | 深圳市亿思达显示科技有限公司 | Multilayer composite reflection projection screen |
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| CN114660883A (en) * | 2020-12-22 | 2022-06-24 | 宁波激智科技股份有限公司 | Ambient light resistant laser television screen and preparation method thereof |
| CN114660883B (en) * | 2020-12-22 | 2024-03-19 | 宁波激智科技股份有限公司 | Environment-light-resistant laser television screen and preparation method thereof |
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Application publication date: 20191119 |