CN110412826A - A kind of projection display screen that spectral selection is absorbed and reflected - Google Patents
A kind of projection display screen that spectral selection is absorbed and reflected Download PDFInfo
- Publication number
- CN110412826A CN110412826A CN201910546365.7A CN201910546365A CN110412826A CN 110412826 A CN110412826 A CN 110412826A CN 201910546365 A CN201910546365 A CN 201910546365A CN 110412826 A CN110412826 A CN 110412826A
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- Prior art keywords
- reflection
- substrate
- composite coating
- light
- display screen
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- 230000003595 spectral effect Effects 0.000 title claims abstract description 23
- 238000000576 coating method Methods 0.000 claims abstract description 74
- 239000011248 coating agent Substances 0.000 claims abstract description 56
- 239000002131 composite material Substances 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 31
- 239000006096 absorbing agent Substances 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 14
- 230000011514 reflex Effects 0.000 claims abstract description 6
- 238000010521 absorption reaction Methods 0.000 claims abstract description 5
- 230000001568 sexual effect Effects 0.000 claims abstract description 5
- 238000001228 spectrum Methods 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 6
- 230000031700 light absorption Effects 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 239000005304 optical glass Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 abstract description 9
- 238000002310 reflectometry Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 241001062009 Indigofera Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004737 colorimetric analysis Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 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
- G03B21/14—Details
- G03B21/20—Lamp housings
- G03B21/2006—Lamp housings characterised by the light source
- G03B21/2033—LED or laser light sources
-
- 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 spectral selections to absorb the projection display screen with reflection, it is composed of substrate (A), spectral selective absorbing coating (B), optical electivity sexual reflex composite coating (C), the absorber coatings (B) and reflection composite coating (C) be located on two different surfaces of substrate (A) or the absorber coatings (B) and reflection composite coating (C) stack combinations after be located on the same side surface of substrate (A)；The absorber coatings (B) are the coating that visible-range 380nm ~ 780nm has optical absorption characteristics；Composite coating with high reflectivity in the special spectrum wave-length coverage that reflection composite coating (C) is shone by light source of projector.As the display screen of laser projection, visible light can be absorbed, reflection laser light is effective against interference of the environment light to imaging picture.
Description
Technical field
The invention belongs to apparatus for optical projection technical fields, and in particular to a kind of to have optical electivity for laser projection
Property absorb with reflection projection display screen.
Background technique
Laser projection display technology (LDT), also referred to as Color Laser Projection Technology or laser display technology, it is with red, green, blue
(RGB) tricolor laser is the display technology of light source, and from the point of view of colorimetry angle, the color domain coverage ratio of laser display be can achieve
Human eye can identify 90% of color space or more, be twice or more of tradition display color domain coverage ratio, thoroughly break through first three generation
The deficiency of display technology color gamut space, most can truly reproduce that objective world is abundant, gorgeous color, provide and more shake
Expressive force.
For laser projection on projection screen, projection screen is one of product most-often used in projector's peripheral equipment, is being lived
In application it is very extensive, but in reality, projection screen is under various light environments, especially in bright ambient light
Under environment, projection of the surface by strong light, it is easy to cause unintelligible imaging picture, uneven, dazzle, white haze shape serious, meeting
The contrast and brightness of picture are substantially reduced, so that it is unclear to easily lead to user's viewing.It can effectively support in the prior art
The projection screen that environment resistant light interferes imaging picture is less, and effect is undesirable.Such as hundred million vertical StarBright ST laser electricity
Environment light can be overcome depending on dedicated anti-light curtain, be that the light of black blocks suction using special optical broached-tooth design, above broached-tooth design
Photosphere, lower section are special coating structure, and such curtain can resist the environment light of Partial angle, but it also absorbs Projection Display
Some light, influence display effect.If CN103605258A discloses a kind of environment resistant light projection screen, by projection imaging
Layer, grating layer and anti-dazzle photosphere composition, are wherein equipped with the ink layer of multiple parallel intervals in grating layer, for absorbing environment light,
Interference of the low ambient light to imaging is dropped.But the ink layer equally can also absorb display light, influence that display effect is imaged, and need
To construct accurate micro-structure on the display screen, and coat optical absorbing agent or reflective agent in micro-structure two sides, show screen at
This, is unfavorable for environment resistant light and shows the universal of screen.Therefore, influence of the environment light to imaging picture is solved, is designed a kind of novel
Be effective against environment light to imaging picture interference projection screen have become technology development trend.
Summary of the invention
To solve the shortcomings of the prior art, absorbs and reflect the purpose of the present invention is to provide a kind of spectral selection
Projection display screen can absorb visible light as the display screen of laser projection, reflection laser light is effective against environment
Interference of the light to imaging picture.
To achieve the above object, the technical solution adopted by the present invention: a kind of projection that spectral selection is absorbed and reflected is aobvious
Display screen, it is characterised in that: combined by substrate (A), spectral selective absorbing coating (B), optical electivity sexual reflex composite coating (C)
It forms, the absorber coatings (B) and reflection composite coating (C) are located on two different surfaces of substrate (A) or the suction
It receives coating (B) and reflects after composite coating (C) stack combinations on the same side surface of substrate (A)；The absorber coatings (B)
There is the coating of optical absorption characteristics for visible-range 380nm~780nm；The reflection composite coating (C) is light source of projector
Composite coating with high reflectivity in the spectral wavelength ranges of luminous radiation.
The substrate (A) is the absorber coatings (B) and reflects the carrier substrate of composite coating (C), and the substrate (A) is adopted
With optical glass, ceramic hard material or optical plastic flexible material.
When the substrate (A) has the spectral wavelength absorption characteristic to (visible light) range of environment light 2 380nm~780nm
When, reflection composite coating (C), which is directly coated, on the surface the substrate (A) constitutes projection display screen.
The light source of projector 1 is the LED light source mould group or laser light source mould group of one or more monochromatic source compositions.
By adopting the above technical scheme the utility model has the advantages that the spectral selection absorb with reflection projection display screen, as swash
The display screen of light projection accepts laser projection and projects modulated red, green, blue (RGB) tricolor laser, then through projecting
Display screen reflexes to human eye, to show imaging picture.The projection display screen is by substrate (A), spectral selective absorbing coating
(B), optical electivity sexual reflex composite coating (C) is composed, the absorber coatings (B) and reflection composite coating (C) difference position
In on two different surfaces of substrate (A), the absorber coatings (B) are to have light absorption to 380nm~780nm range visible light
The coating of characteristic, which can be absorbed full wave environment light, and when not projecting laser beam, blank screen is presented in display screen
Effect.Reflection composite coating (C) is with high reflectivity in the spectral wavelength ranges of light source of projector luminous radiation
Composite coating, the composite coating are substantially totally reflected the three color laser of red, green, blue that laser projection projects, so as to
See clearly projected picture.Due to laser projection laser light source projects go out be single wavelength three color of red, green, blue swash
Light, although there is also can be reflected, its Zhan Huan the light of three single wavelengths exposing to composite coating in environment light
The ratio of border light is seldom, and intensity is very weak relative to the laser of laser light source, therefore the part monochromatic light does not have shadow to projected picture
It rings.
When the single light source used by light source of projector mould group more than uses three color composite light source mould group of red, green, blue,
Such as when increasing yellow light single light source, above-mentioned coating (C) increases (λ at a yellow wavelengthsy±Δλy) reflection peak (can scheme
7).And so on.
Detailed description of the invention
Fig. 1 is the environment resistant screen of the prior art；
Fig. 2 is structure principle chart of the invention；
Fig. 3 is the structural schematic diagram of projection display screen；
Fig. 4 is another structural schematic diagram of projection display screen；
Fig. 5 is the absorptivity curve graph of spectral selective absorbing coating；
Fig. 6 is the redgreenblue laser light reflectance curve figure for reflecting composite coating.
Fig. 7 is the red, green, blue and yellow four-color laser light reflectance curve figure for reflecting composite coating.
Wherein, A, substrate；B, absorber coatings；C, composite coating is reflected；1, light source of projector；2, environment light；3, human eye；4,
Screen；5, light-absorption layer；6, coating.
In order to be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, tie below
Specific embodiments and the drawings are closed, the present invention is further explained, and however, the following embodiments are merely preferred embodiments of the present invention, not
All.Based on the implementation example in the implementation mode, those skilled in the art are obtained without making creative work
Other embodiments belong to protection scope of the present invention.
Specific embodiments of the present invention are described with reference to the accompanying drawing.
The dedicated anti-light curtain of laser television as shown in Figure 1, can overcome environment light, and structure is at the back side of curtain 4 using special
Different optics broached-tooth design, broached-tooth design top are that the light of black blocks light-absorption layer 5, and lower section is 6 structure of specific coatings, such
Curtain can resist the environment light of Partial angle, but it also absorbs some light of Projection Display, influences display effect.
Spectral selection as shown in Figure 2,3, 4 absorbs the projection display screen with reflection, is inhaled by substrate A, spectral selection
Receipts coating B, optical electivity sexual reflex composite coating C in combination form, and the absorber coatings B and reflection composite coating C are located at
It is located at the same of substrate A on two different surfaces of substrate A or after the absorber coatings B and reflection composite coating C stack combinations
On side surface；As shown in figure 5, the absorber coatings B is to all have light suction to (visible light) range of environment light 2 380nm~780nm
Receive the coating of characteristic；As shown in fig. 6, the reflection composite coating C is the RGB laser spectrum to 1 light radiation of light source of projector
Wave-length coverage (red: λ r ± Δ λ r, green: λ g ± Δ λ g and indigo plant: λ b ± Δ λ b) all has the composite coating of high reflectance.As another
A kind of structure, as shown in fig. 7, the reflection composite coating C is the red greenish-yellow blue light spectrum wavelength model to 1 light radiation of light source of projector
Enclose the composite coating that (red: λ r ± Δ λ r, green: λ g ± Δ λ g, Huang: λ y ± Δ λ y and indigo plant: λ b ± Δ λ b) all has high reflectance.
Environment light 2 passes through reflection composite coating C and substrate A, is absorbed coating B and all absorbs, does not reflect, human eye 3 can't see ring
Border light 2, therefore environment light will not generate interference to projected picture.The spectral wavelength of 1 light radiation of light source of projector is projected to display screen
On, the reflection composite coating C through display screen all reflects, and human eye 3 is the picture it can be seen that being projected out.
The substrate A is the absorber coatings B and reflects the carrier substrate of composite coating C, and the substrate A uses optics glass
Glass, ceramic hard material or optical plastic flexible material.
When the substrate A has the spectral wavelength absorption characteristic to (visible light) range of environment light 2 380nm~780nm,
Reflection composite coating C, which is directly coated, on the surface the substrate A constitutes projection display screen.
The light source of projector 1 is the LED light source mould group or laser light source mould group of one or more monochromatic source compositions.
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
For personnel it should be appreciated that the present invention is not limited to the above embodiments, described in the above embodiment and specification is only the present invention
Preference, be not intended to limit the invention, without departing from the spirit and scope of the present invention, the present invention also has various
Changes and improvements, these changes and improvements all fall within the protetion scope of the claimed invention.The claimed scope of the invention is by institute
Attached claims and its equivalent thereof.
Claims (4)
1. a kind of spectral selection absorbs the projection display screen with reflection, it is characterised in that: inhaled by substrate (A), spectral selection
Receive coating (B), optical electivity sexual reflex composite coating (C) is composed, the absorber coatings (B) and reflection composite coating (C)
Be located on two different surfaces of substrate (A) or the absorber coatings (B) and reflection composite coating (C) stack combinations after
On the same side surface of substrate (A)；The absorber coatings (B) are that visible-range 380nm ~ 780nm has light absorption special
The coating of property；There is high reflection in the special spectrum wave-length coverage that reflection composite coating (C) is shone by light source of projector
The composite coating of rate.
2. spectral selection as described in claim 1 absorbs the projection display screen with reflection, it is characterised in that: the substrate
It (A) is the carrier substrate of the absorber coatings (B) and reflection composite coating (C), the substrate (A) uses optical glass, ceramics
Hard material or optical plastic flexible material.
3. spectral selection as described in claim 1 absorbs the projection display screen with reflection, it is characterised in that: when the substrate
(A) when there is the spectral wavelength absorption characteristic to environment light (visible light) range 380nm ~ 780nm, on the surface the substrate (A)
Directly coating reflection composite coating (C) constitutes projection display screen.
4. spectral selection as described in claim 1 absorbs the projection display screen with reflection, it is characterised in that: the projector
Light source is the LED light source mould group or laser light source mould group of one or more monochromatic source compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546365.7A CN110412826A (en) | 2019-06-21 | 2019-06-21 | A kind of projection display screen that spectral selection is absorbed and reflected |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910546365.7A CN110412826A (en) | 2019-06-21 | 2019-06-21 | A kind of projection display screen that spectral selection is absorbed and reflected |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110412826A true CN110412826A (en) | 2019-11-05 |
Family
ID=68359556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910546365.7A Pending CN110412826A (en) | 2019-06-21 | 2019-06-21 | A kind of projection display screen that spectral selection is absorbed and reflected |
Country Status (1)
| Country | Link |
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| CN (1) | CN110412826A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111338174A (en) * | 2020-04-09 | 2020-06-26 | 江苏慧智新材料科技有限公司 | High-contrast scratch-resistant projection screen for laser projection and manufacturing method thereof |
| CN112573944A (en) * | 2020-12-14 | 2021-03-30 | 张万里 | Ceramic matrix laser television display screen and manufacturing method thereof |
| CN113219778A (en) * | 2020-01-19 | 2021-08-06 | 明基智能科技（上海）有限公司 | Projection screen resisting ambient light |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487357A (en) * | 2002-07-11 | 2004-04-07 | 索尼公司 | Image display screen, method for producing image display screen and image display |
| CN211043936U (en) * | 2019-06-21 | 2020-07-17 | 河南镀邦光电股份有限公司 | Projection display screen with spectrum selective absorption and reflection |
-
2019
- 2019-06-21 CN CN201910546365.7A patent/CN110412826A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1487357A (en) * | 2002-07-11 | 2004-04-07 | 索尼公司 | Image display screen, method for producing image display screen and image display |
| CN211043936U (en) * | 2019-06-21 | 2020-07-17 | 河南镀邦光电股份有限公司 | Projection display screen with spectrum selective absorption and reflection |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113219778A (en) * | 2020-01-19 | 2021-08-06 | 明基智能科技（上海）有限公司 | Projection screen resisting ambient light |
| CN111338174A (en) * | 2020-04-09 | 2020-06-26 | 江苏慧智新材料科技有限公司 | High-contrast scratch-resistant projection screen for laser projection and manufacturing method thereof |
| CN111338174B (en) * | 2020-04-09 | 2021-04-16 | 江苏慧智新材料科技有限公司 | High-contrast scratch-resistant projection screen for laser projection and manufacturing method thereof |
| CN112573944A (en) * | 2020-12-14 | 2021-03-30 | 张万里 | Ceramic matrix laser television display screen and manufacturing method thereof |
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