CN109375467A - Ultrashort out-of-focus projection's curtain - Google Patents
Ultrashort out-of-focus projection's curtain Download PDFInfo
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- CN109375467A CN109375467A CN201811480083.3A CN201811480083A CN109375467A CN 109375467 A CN109375467 A CN 109375467A CN 201811480083 A CN201811480083 A CN 201811480083A CN 109375467 A CN109375467 A CN 109375467A
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- focus projection
- ultrashort out
- curtain
- diffusion
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- 238000009792 diffusion process Methods 0.000 claims abstract description 70
- 239000002245 particle Substances 0.000 claims abstract description 20
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000006185 dispersion Substances 0.000 claims abstract description 7
- 239000003595 mist Substances 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 9
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052934 alunite Inorganic materials 0.000 claims 1
- 239000010424 alunite Substances 0.000 claims 1
- 239000003205 fragrance Substances 0.000 claims 1
- KPZTWMNLAFDTGF-UHFFFAOYSA-D trialuminum;potassium;hexahydroxide;disulfate Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Al+3].[Al+3].[Al+3].[K+].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O KPZTWMNLAFDTGF-UHFFFAOYSA-D 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 16
- 230000000007 visual effect Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 6
- 239000011347 resin Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000000049 pigment Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 230000031700 light absorption Effects 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
Abstract
The embodiment of the invention discloses a kind of ultrashort out-of-focus projection's curtains, to be directed toward the direction of display surface as first direction by the non-display face of ultrashort out-of-focus projection's curtain；Ultrashort out-of-focus projection's curtain includes the total reflection component being cascading along the first direction and protection component；The protection component includes substrate layer, diffusion layer and the atomizing layer being cascading along the first direction；Wherein, the first diffusion particle of multiple dispersions is provided in the diffusion layer；The atomizing layer is directly contacted with the diffusion layer.Ultrashort out-of-focus projection's curtain provided in an embodiment of the present invention may be implemented have biggish visual angle under the premise of making the ultrashort out-of-focus projection's curtain of the second class have highlighted display effect.
Description
Technical field
The present embodiments relate to projection display technique more particularly to a kind of ultrashort out-of-focus projection's curtains.
Background technique
Ultrashort out-of-focus projection's curtain is for occasions such as commercial advertisement, teaching, office, family or theater entertainments, for showing
The tool of image, video etc..For LCD screen, LCD screen at high cost and not in the occasion of large scale demand
It easily carries and storage, such as plays applied to significantly advertising panel, movie theatre and when teaching screen, liquid crystal display greater than 50 cun
Curtain it is expensive, and without using when can not receive and keep in time, in addition, eyes watch for a long time LCD screen also be easy because
It is radiated and is affected vision, be unfavorable for the health of human body；The above problem is but not present in the projection screen of same size, not only
Cost is far below LCD screen, and is also easy to carry and roll harvesting, therefore be widely used.
Ultrashort out-of-focus projection's curtain mainly utilizes reflecting prism and reflecting surface to cooperate jointly, to reflect projection ray,
And then realize that image is shown.There are two main classes for the relatively conventional ultrashort out-of-focus projection's curtain of existing market, wherein the ultrashort coke of the first kind
In projection screen, reflecting prism is provided with multiple right angled triangle protrusions being arranged successively close to the side of display surface.Each right angle
The inclined-plane of triangular hill sprays reflecting surface, to reflect projection ray, and then realizes that image is shown.Meanwhile it is each direct
Black light-absorption layer is sprayed on the surface vertical with projection screen in triangular hill, to absorb environment light, and then weakens environment light
Influence to its display effect.In the ultrashort out-of-focus projection's curtain of second class, reflecting prism is provided with multiple away from the side of display surface
Protrusion, reflecting surface is sprayed in each protrusion, to reflect projection ray, and then realizes that image is shown.It is ultrashort in the second class
In out-of-focus projection's curtain and it is not provided with the black light-absorption layer for absorbing environment light, but by arranging each protrusion according to particular law
Column, projection ray is assembled, highlighted effect is generated, to weaken the influence that environment light understands its display effect.
Wherein, since in the ultrashort out-of-focus projection's curtain of the first kind, for triangular hill towards display surface, production yield is lower,
It not can be carried out direct touch, maintain cumbersome in use and be easy to damage, service life is shorter.Therefore such ultrashort out-of-focus projection's curtain
Cloth is not favored by client.For the ultrashort out-of-focus projection's curtain of the second class, in order to obtain the effect of high brightness to weaken environment light
Influence to its display effect can make the viewing visual angle of projection screen very small, and user experience is bad.
Summary of the invention
The present invention provides a kind of ultrashort out-of-focus projection's curtain, to realize to have the ultrashort out-of-focus projection's curtain of the second class highlighted
Display effect under the premise of, have biggish visual angle.
The embodiment of the invention provides a kind of ultrashort out-of-focus projection's curtains, by the non-display face of ultrashort out-of-focus projection's curtain
The direction for being directed toward display surface is first direction；
Ultrashort out-of-focus projection's curtain includes the total reflection component being cascading along the first direction and protection group
Part；
The protection component includes substrate layer, diffusion layer and the atomizing layer being cascading along the first direction；
Wherein, the first diffusion particle of multiple dispersions is provided in the diffusion layer；
The atomizing layer is directly contacted with the diffusion layer.
Further, the partial size of first diffusion particle is greater than or equal to 2 μm, and is less than or equal to 20 μm；
The mist degree of the diffusion layer is greater than or equal to 50%, and is less than or equal to 90%.
Further, the atomizing layer is provided with multiple micro-structures away from the surface of the diffusion layer.
Further, the micro-structure includes multiple lenticules, and multiple lenticules, which are arranged in the atomizing layer, to deviate from
The surface of the diffusion layer, so that the atomizing layer is in roughness away from the surface of the diffusion layer.
Further, the mist degree of the atomizing layer is greater than or equal to 20%, and is less than or equal to 80%.
Further, doped with black pigment in the atomizing layer.
Further, the total reflection component includes the supporting layer being cascading along the first direction, reflecting layer
And reflecting prism；
The reflecting prism is provided with total reflection structure close to the side in the reflecting layer, and the total reflection structure is linear
Fresnel structure, circular Fresnel structure or asymmetric three-legged structure；
The reflecting layer is directly contacted with the total reflection structure.
Further, the material in the reflecting layer is the metal with reflection function.
Further, the color of the supporting layer is black.
For the embodiment of the present invention by setting total reflection component and protection component, the protection component includes along the first party
To the substrate layer, diffusion layer and atomizing layer being cascading；Wherein, first that multiple dispersions are provided in the diffusion layer is expanded
Shot；The atomizing layer is directly contacted with the diffusion layer, and light source is totally reflected by total reflection component substantially, increases projection screen
Optical gain increase the uniformity of projection screen by the first diffusion particle of diffusion layer when reflection, increase visual perspective,
It solves the problems, such as that the ultrashort out-of-focus projection's curtain viewing visual angle of existing second class is very small, realizes and making the ultrashort coke of the second class
Under the premise of projection screen has highlighted display effect, there is biggish visual angle.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of ultrashort out-of-focus projection's curtain provided in an embodiment of the present invention；
Fig. 2 is a kind of schematic diagram of atomizing layer micro-structure provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the ultrashort out-of-focus projection's curtain of another kind provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of ultrashort out-of-focus projection's curtain provided in an embodiment of the present invention.Referring to Fig. 1, by surpassing
The direction that display surface is directed toward in the non-display face of short focus projection screen is first direction (i.e. X-direction in Fig. 1).Referring to Fig. 1, this is super
Short focus projection screen includes the total reflection component 10 being cascading along first direction (i.e. X-direction in Fig. 1) and protection group
Part 20；Protecting component 20 includes substrate layer 21, the diffusion layer 22 being cascading along first direction (i.e. X-direction in Fig. 1)
With atomizing layer 23；Wherein, the first diffusion particle 221 of multiple dispersions is provided in diffusion layer 22；Atomizing layer 23 and diffusion layer 22
Directly contact.
With continued reference to Fig. 1, in use, the light I being emitted from projector 2001, after overprotection component 20, enter
It is mapped to total reflection component 10.Projected light I1The light I shown for image is formed after total reflection component 10 reflects2, the light
I2On first diffusion particle 221 of irradiation, and by the diffusion of first diffusion particle 221, to all directions emergent light
Line, to expand the angular field of view of emergent ray.
Therefore, for the embodiment of the present invention by setting total reflection component and protection component, protection component includes along first direction
Substrate layer, diffusion layer and the atomizing layer being cascading；Wherein, the first diffusion grain of multiple dispersions is provided in diffusion layer
Son；Atomizing layer is directly contacted with diffusion layer, and light source is totally reflected by total reflection component substantially, increases the optical gain of projection screen,
By the first diffusion particle of diffusion layer when reflection, increase the uniformity of projection screen, increases visual perspective, solve existing
The ultrashort very small problem of out-of-focus projection's curtain viewing visual angle of second class realizes and the ultrashort out-of-focus projection's curtain of the second class is had
Under the premise of highlighted display effect, there is biggish visual angle.
Wherein, " atomizing layer 23 is directly contacted with diffusion layer 22 " refers to, when making the protection component 20, first with substrate layer
21 be substrate, makes diffusion layer 22；Then the generally substrate constituted again with diffusion layer 22 and substrate layer 21 makes atomizing layer
23。
With " atomizing layer 23 and diffusion layer 22 are respectively formed on different substrate materials, then by atomizing layer 23 and formed atomizing layer
23 substrate layer using diffusion layer 22 and forms the substrate layer of diffusion layer 22 as second entirety as first entirety, by the
One entirety is compared with the scheme that second entirety carries out fitting formation protection component 20 ", and technical solution provided by the present application can
With reduce a substrate layer thickness, and then reach reduces ultrashort out-of-focus projection's curtain thickness, reduction processing technology complexity with
And the effect of cost of manufacture.It should be noted that the thickness of ultrashort out-of-focus projection's curtain is smaller, more it is easy to wind.
" the first diffusion particle 221 of multiple dispersions is provided in diffusion layer 22 " refers to that diffusion layer 22 further includes main body material
Material；First diffusion particle 221 is scattered in material of main part.Optionally, the partial size of the first diffusion particle 221 is greater than or equal to 2 μm,
And it is less than or equal to 20 μm；The mist degree of diffusion layer 22 is greater than or equal to 50%, and is less than or equal to 90%.Wherein, mist degree refers to,
The transmitted light for deviateing 2.5 ° of angles of incident light or more seizes the percentage of total transmission light intensity.The benefit being arranged in this way is can to make
Ultrashort out-of-focus projection's curtain has the angular field of view of preferable emergent ray, while promoting the emergent light uniformity.It should be noted that
In actual setting, the size of each first diffusion particle 221 can be identical, can be different, the application to this with no restriction.
Optionally, the material of main part of diffusion layer 22 can be greater than 85% resin for transmitance.It may insure so enough
More projected light I1Diffusion layer 22 can be penetrated, is reached in total reflection component 10, while ensuring that enough images that is used for are shown
Light I2Diffusion layer 22 can be penetrated, is incident in human eye, to improve the display effect of projection screen.
Optionally, in atomizing layer 23 there are many specific plans of establishment of micro-structure.Optionally, atomizing layer 23 deviates from diffusion layer
22 surface is provided with multiple micro-structures.In atomizing layer 23 effect of micro-structure it is main there are three, first is that, will through be totally reflected component
The light I shown for image formed after 10 reflections2Assembled, enhances projection screen brightness.Second is that entering to by outer bound pair
The non-projected light (i.e. environment light, such as light) being mapped to thereon is diffused, and plays anti-glazing light action.Third is that 23 phase of atomizing layer
When in layer protecting film, micro-structure makes atomizing layer 23, in roughness, be not easy to be formed thereon away from the surface of diffusion layer 22
Scratch, easily collecting fingerprint, not can be improved the scratch resistance antifouling effect of projection screen entirety.
Illustratively, micro-structure includes multiple lenticules, and multiple lenticules are arranged in the table that atomizing layer deviates from diffusion layer 22
Face, so that atomizing layer 23 is in roughness away from the surface of diffusion layer 22.Setting structure is simple in this way, it is easy to accomplish.
Fig. 2 is a kind of schematic diagram of atomizing layer micro-structure provided in an embodiment of the present invention.Referring to fig. 2, which carries on the back
Surface from diffusion layer 22 is in roughness.
Optionally, the mist degree of atomizing layer 23 is greater than or equal to 20%, and is less than or equal to 80%.Due to the bigger meaning of mist degree
Transparency decline, light penetration is smaller, and image quality is poorer.The smaller effect for meaning anti-glare of mist degree is poorer.Setting
The mist degree of atomizing layer 23 is greater than or equal to 20%, and is less than or equal to 80%, and atomizing layer 23 can be made to have both preferable anti-glazing
The effect of light and preferable light penetration.
Optionally, atomizing layer 23 selects transmitance to make to be formed greater than 85% resin, and be arranged its thickness 10 μm~
50μm.It since the thickness of projection screen is bigger, is more not easy to wind, be arranged in this way on the winding of projection screen without influence.
It further, can also be doped with black pigment in atomizing layer 23.The adjustable image that is used for is arranged in this way to show
Light I2Dark contrast's degree and color saturation promote contrast and color rendition degree to inhibit distortion.
One of protection component 20 production method is illustratively provided below, but does not constitute the limitation to the application.
Firstly, being substrate with substrate layer 21, the resin of the first diffusion particle 221, shape are mixed in the substrate layer 21 coating
At diffusion layer 22.
Then, the generally substrate constituted with diffusion layer 22 and substrate layer 21, coating is mixed with black pigment on it
Resin, using as atomizing layer 23.
The atomizing layer 23 is imprinted finally, being conducive to mold, makes its surface that there is micro-structure.
With continued reference to Fig. 1, which includes being cascading along first direction (i.e. X-direction in Fig. 1)
Supporting layer 11, reflecting layer 12 and reflecting prism 13.Reflecting prism 13 is provided with total reflection knot close to the side in reflecting layer 12
Structure 131, total reflection structure 131 can be linear Fresnel structure, circular Fresnel structure or asymmetric three-legged structure etc.；Reflection
Layer 12 is directly contacted with total reflection structure 131.
Optionally, reflecting prism 13 selects resin of the transmitance greater than 85% to make to be formed, specific ruler in reflecting prism 13
Parameter and projector 200 and projection screen is arranged according to projector 200 in very little (such as the angle etc. in face 132 and first direction)
Relative positional relationship etc. determine, as long as making projected light I1The light shown for image formed after reflecting layer 12 is reflected
I2It can be emitted along direction parallel or approximately parallel with first direction.
Optionally, the material in reflecting layer 12 is the metal with reflection function.Specifically, reflecting layer 12 can be silver or aluminium
Deng.Setting can make the reflection efficiency with higher of reflecting layer 12 in this way, increase the optical gain of projection screen.Optionally,
Reflecting layer 12 can process to be formed using the techniques such as spraying or printing.
Fig. 3 is the structural schematic diagram of the ultrashort out-of-focus projection's curtain of another kind provided in an embodiment of the present invention.Compared to Figure 1, Fig. 3
In, reflecting layer 12 further includes minimal amount of second diffusion particle 121 in ultrashort out-of-focus projection's curtain.Specifically, the second diffusion particle
121 are scattered in reflecting layer 12.By increasing multiple second diffusion particles 121 in reflecting layer 12, the second diffusion can use
The diffusion of particle 121 increases the uniformity of the display of projection screen, increases visual perspective.
Optionally, the partial size of the second diffusion particle 121 is greater than or equal to 10 μm, and is less than or equal to 100 μm.
In above-mentioned each technical solution, supporting layer 11 can play the role of support protection for entire curtain.It is basic herein
On, optionally, the color of supporting layer 11 is black, to absorb to from the environment light of the non-display face incidence of projection screen, is prevented
Only it is entered in projection screen internal structure, is mixed with the light I2 shown for image, is influenced display effect.Meanwhile it is black
There are also the effects of light leakage for color supporting layer 11.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (9)
1. a kind of ultrashort out-of-focus projection's curtain, which is characterized in that shown with being directed toward by the non-display face of ultrashort out-of-focus projection's curtain
The direction in face is first direction；
Ultrashort out-of-focus projection's curtain includes the total reflection component being cascading along the first direction and protection component；
The protection component includes substrate layer, diffusion layer and the atomizing layer being cascading along the first direction；
Wherein, the first diffusion particle of multiple dispersions is provided in the diffusion layer；
The atomizing layer is directly contacted with the diffusion layer.
2. ultrashort out-of-focus projection's curtain according to claim 1, which is characterized in that
The partial size of first diffusion particle is greater than or equal to 2 μm, and is less than or equal to 20 μm；
The mist degree of the diffusion layer is greater than or equal to 50%, and is less than or equal to 90%.
3. ultrashort out-of-focus projection's curtain according to claim 1, which is characterized in that
The atomizing layer is provided with multiple micro-structures away from the surface of the diffusion layer.
4. ultrashort out-of-focus projection's curtain according to claim 3, which is characterized in that
The micro-structure includes multiple lenticules, and multiple lenticules are arranged in the table that the atomizing layer deviates from the diffusion layer
Face, so that the atomizing layer is in roughness away from the surface of the diffusion layer.
5. ultrashort out-of-focus projection's curtain according to claim 4, which is characterized in that
The mist degree of the atomizing layer is greater than or equal to 20%, and is less than or equal to 80%.
6. ultrashort out-of-focus projection's curtain according to claim 1, which is characterized in that doped with black face in the atomizing layer
Material.
7. ultrashort out-of-focus projection's curtain according to claim 1, which is characterized in that the total reflection component includes along described
Supporting layer, reflecting layer and the reflecting prism that one direction is cascading；
The reflecting prism is provided with total reflection structure close to the side in the reflecting layer, and the total reflection structure is linear luxuriant and rich with fragrance alunite
That structure, circular Fresnel structure or asymmetric three-legged structure；
The reflecting layer is directly contacted with the total reflection structure.
8. ultrashort out-of-focus projection's curtain according to claim 7, which is characterized in that
The material in the reflecting layer is the metal with reflection function.
9. ultrashort out-of-focus projection's curtain according to claim 7, which is characterized in that
The color of the supporting layer is black.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480083.3A CN109375467A (en) | 2018-12-05 | 2018-12-05 | Ultrashort out-of-focus projection's curtain |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811480083.3A CN109375467A (en) | 2018-12-05 | 2018-12-05 | Ultrashort out-of-focus projection's curtain |
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| CN109375467A true CN109375467A (en) | 2019-02-22 |
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| CN201811480083.3A Pending CN109375467A (en) | 2018-12-05 | 2018-12-05 | Ultrashort out-of-focus projection's curtain |
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Cited By (5)
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| CN110262178A (en) * | 2019-07-22 | 2019-09-20 | 顾亮 | A kind of arc reflection curtain for ultrashort burnt orthographic projection |
| CN111294435A (en) * | 2020-02-24 | 2020-06-16 | Oppo广东移动通信有限公司 | Mobile terminal |
| CN112255877A (en) * | 2020-11-10 | 2021-01-22 | 成都菲斯特科技有限公司 | Reflective lateral projection screen and projection system |
| CN112255874A (en) * | 2020-11-10 | 2021-01-22 | 成都菲斯特科技有限公司 | Catadioptric lateral projection screen and projection system |
| CN112255873A (en) * | 2020-11-10 | 2021-01-22 | 成都菲斯特科技有限公司 | Total reflection type lateral projection screen and projection system |
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