CN111635678A - Rear projection coating and rear projection screen - Google Patents
Rear projection coating and rear projection screen Download PDFInfo
- Publication number
- CN111635678A CN111635678A CN201910412945.7A CN201910412945A CN111635678A CN 111635678 A CN111635678 A CN 111635678A CN 201910412945 A CN201910412945 A CN 201910412945A CN 111635678 A CN111635678 A CN 111635678A
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- CN
- China
- Prior art keywords
- rear projection
- coating
- substrate
- aluminum silicate
- amorphous calcium
- Prior art date
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
- C09D133/04—Homopolymers or copolymers of esters
- C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
- C09D133/08—Homopolymers or copolymers of acrylic acid esters
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- 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
-
- 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
- G03B21/62—Translucent screens
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Wood Science & Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention relates to a back projection coating and a back projection screen, wherein the back projection coating comprises amorphous calcium aluminum silicate and a coating substrate, and 1-40g of amorphous calcium aluminum silicate is added into each 100mL of the coating substrate; the grain diameter of the amorphous calcium aluminum silicate is 1nm-100 mu m. The rear projection coating of the invention can lead the rear projection screen to have better visual angle and less color cast, and leads the colors of the images to be basically consistent when the display images are watched at different visual angles or different positions.
Description
Technical Field
The invention relates to a rear projection coating and a rear projection screen.
Background
In the field of rear projection display, especially rear projection display, a projection screen with a fresnel micro-lens structure is usually adopted, at present, the projection screen can only be used indoors or at night, when the projection screen is used outdoors, because the color shift at the screen center point, namely the horizontal viewing angle is 0, the generated color shift is increased along with the increase of the horizontal viewing angle, and the generated color shift is increased along with the increase of the vertical viewing angle, namely, along with the increase of the viewing angle, the color shifts of different degrees are generated, the direct visual expression of the color shift is that a white field is not a preset color temperature value any more, but the shift is displayed with a certain primary color, so that the colors of image pictures are not consistent when human eyes watch the display pictures at different viewing angles or different positions, especially in large-screen splicing display, more scenes are used for the white field, such as PPT display of a large conference room, color cast at different viewing angles or different positions can greatly degrade the user experience.
Therefore, how to effectively reduce the color shift generated when the rear projection screen displays the image becomes a problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a rear projection coating and a rear projection screen. The rear projection coating of the invention can lead the rear projection screen to have better visual angle and less color cast, and leads the colors of the images to be basically consistent when the display images are watched at different visual angles or different positions.
The invention is realized by the following technical scheme:
scheme I)
A rear projection paint comprises amorphous calcium aluminum silicate and a paint substrate, wherein 1-40g of amorphous calcium aluminum silicate is added according to 100mL of the paint substrate; the grain diameter of the amorphous calcium aluminum silicate is 1nm-100 mu m.
In order to make the screen capable of being used under strong light even sunlight, the following scheme is preferred in the invention: the rear projection coating also comprises black particles, wherein the black particles are 5-45mm black glass beads or black particles with the particle size of 5-45mm or black, non-reflective, transparent and flaky silica glass, 1-30g of the black particles are added according to 100mL of a coating substrate, the thickness of the silica glass is 200-300nm, and the width of the silica glass is 40-50 mu m.
The coating substrate of the present invention may be a water-based paint or an oil-based paint, and for the sake of environmental protection, a water-based paint is preferably used in the present invention. Commercially available water-based paints may be used.
In order to form an environment-friendly uniform film layer which is better in adsorption with a substrate and smooth, the water-based paint consists of the following components in parts by volume: 400-500mL of water-based acrylic emulsion, 1-2mL of defoaming agent, 1-2mL of wetting agent, 1-2mL of flatting agent, 20-30mL of film-forming assistant and 0.5-1mL of adhesive.
Scheme two)
A preparation method of a rear projection coating comprises the following steps: the amorphous calcium aluminum silicate and the coating substrate are stirred for 2-5 minutes until uniformly mixed.
A preparation method of a rear projection coating comprises the following steps: stirring the amorphous calcium aluminum silicate, the coating substrate and the black particles for 2-5 minutes until the materials are uniformly mixed.
Scheme three)
A rear projection screen comprises a rear projection substrate and the rear projection coating coated on the surface of the rear projection substrate.
Preferably, the rear projection substrate is a plane substrate or a curved substrate. When the substrate is a curved substrate, the rear projection screen is a curved screen.
Preferably, the rear projection substrate is glass, acrylic plate or transparent plastic plate.
Compared with the prior art, the invention has the following beneficial effects:
the rear projection coating of the invention can lead the rear projection screen to have better visual angle and less color cast, and leads the colors of the images to be basically consistent when the display images are watched at different visual angles or different positions.
The rear projection screen can enable more projection light to penetrate through the projector, enables the screen to be brighter and enables the screen to be used under strong light and even sunlight.
The back projection screen can be used for digital dynamic advertisement of show window glass in the daytime or at night, can replace posters and publicity paper, can reduce waste, and achieves the effects of environmental protection and saving.
The coating of the present invention can be sprayed by spraying or coated by other methods, so that the projection screen has a large area and no seam.
The coating can be coated on transparent materials such as glass, acrylic plates, transparent plastics or endurance plates and has good durability.
The coating can be coated on a curved surface or a plane surface to form a plane screen or a curved surface screen.
Detailed Description
The invention will be further elucidated with reference to the following embodiments: but is not limited to the following embodiments only and any modifications or alterations according to the principles of the present invention should be considered within the scope of the present invention.
The amorphous calcium aluminosilicates described in the following examples were produced from Vetro mineral company, wherein the amorphous calcium aluminosilicates were prepared mainly by melting the following components (the melting temperature may be 650-: SiO 2250-55 parts by mass of Al2O315-20 parts by mass, 20-25 parts by mass of CaO, B2O30-6 parts by mass and 0-1 part by mass of MgO.
Silica glass is produced by glass flake company (glassmelt Limited). It mainly comprises black iron oxide and silicon dioxide, and is a glass formed by cooling after fusion. Are commercially available.
The aqueous acrylic emulsion is preferably Jsdl-518 from Jiangsu New Material Co. The paint substrate of the invention can also be selected from commercially available oil paint, and when the oil paint is selected, other auxiliary agents are correspondingly changed in order to meet the performances of the paint such as hardness, adhesion and the like.
The defoaming agent is NXZ from Runz chemical industry, Inc. of Guangzhou city.
The wetting agent is preferably PE100, a product of Runzi, Guangzhou, Inc.
The leveling agent is preferably selected from Guangzhou Mitsu chemical industry Co., Ltd 2020.
The binder is preferably Hickchi New materials, Inc. H-592, Guangzhou.
5-45mm black glass beads or black particles are manufactured by Cospheric corporation of America.
Example 1
A rear projection coating comprising amorphous calcium aluminum silicate and a coating substrate,
the present embodiment includes
170g of amorphous calcium aluminum silicate, wherein the particle size of the amorphous calcium aluminum silicate is 1nm-100 mu m;
the paint substrate comprises 400mL of water-based acrylic emulsion, 1mL of defoaming agent, 1mL of wetting agent, 1mL of flatting agent, 20mL of film-forming assistant and 0.5mL of adhesive.
The amorphous calcium aluminum silicate and the coating substrate were stirred for 2 minutes to mix well.
The rear projection screen comprises a rear projection substrate and a rear projection coating coated on the surface of the rear projection substrate.
The back projection substrate is a plane glass substrate
Example 2
A back projection paint comprises
50g of amorphous calcium aluminum silicate, wherein the particle size of the amorphous calcium aluminum silicate is 1nm-100 mu m;
100g of black, non-reflective, transparent and flaky silica glass, wherein the thickness of the silica glass is 200 nm and 300nm, and the width of the silica glass is 40-50 mu m;
the coating substrate is water paint (oil paint can be selected, and when the oil paint is selected, the auxiliary agent is modified correspondingly).
The coating substrate is as follows: 500mL of water-based acrylic emulsion, 2mL of defoaming agent, 2mL of wetting agent, 2mL of flatting agent, 30mL of film-forming assistant and 1mL of adhesive.
The amorphous calcium aluminum silicate, the coating substrate and the silica glass are stirred for 5 minutes until uniformly mixed.
A rear projection screen comprises a rear projection substrate and a rear projection coating coated on the surface of the rear projection substrate.
The back projection substrate is an acrylic plate plane substrate.
Example 3
A rear projection paint comprises 50g of amorphous calcium aluminum silicate, the particle size of which is 1nm-100 μm;
150g of black, non-reflective, transparent, flaky silica glass, the thickness of the silica glass is 200-300nm, and the width is 40-50 μm;
the coating substrate is water paint (oil paint can be selected, and when the oil paint is selected, the auxiliary agent is modified correspondingly).
Water paint: 450mL of water-based acrylic emulsion, 1mL of defoaming agent, 1.5mL of wetting agent, 1.5mL of flatting agent, 25mL of film-forming assistant and 1mL of adhesive.
The amorphous calcium aluminum silicate, the coating substrate and the silica glass are stirred for 3 minutes until uniformly mixed.
A rear projection screen comprises a rear projection substrate and a rear projection coating coated on the surface of the rear projection substrate. The back projection substrate is a curved plastic film.
Example 4
A rear projection coating, which comprises 5g of amorphous calcium aluminum silicate, wherein the particle size of the amorphous calcium aluminum silicate is 1nm-100 μm;
also comprises 5g of black glass micro-beads with the grain diameter of 5-45mm or black particles with the grain diameter of 5-45 mm.
The amorphous calcium aluminum silicate, the coating substrate and the silica glass are stirred for 5 minutes until uniformly mixed.
The paint substrate of this example was a commercially available transparent oil-based paint.
A rear projection screen comprises a rear projection substrate and a rear projection coating coated on the surface of the rear projection substrate.
The back projection substrate is a transparent plastic plate plane substrate.
The coatings of the rear projection screens prepared in the above examples were tested for their correlation properties, and the results are as follows
Therefore, as shown in the above table, the rear projection coating of the present invention can provide a rear projection screen with a better viewing angle and less color cast, so that the colors of the image pictures are substantially consistent when the display pictures are viewed at different viewing angles or different positions.
The embodiments within the scope of the present invention are all feasible, and the viewing angle, color deviation, gain, etc. are close to the data of the above embodiments, so the embodiments within the scope of the present invention are not exhaustive.
Claims (9)
1. A rear projection coating characterized in that: the rear projection coating comprises amorphous calcium aluminum silicate and a coating substrate, wherein 1-40g of amorphous calcium aluminum silicate is added to each 100mL of the coating substrate; the grain diameter of the amorphous calcium aluminum silicate is 1nm-100 mu m.
2. A rear projection coating according to claim 1, wherein: the rear projection coating also comprises black particles, wherein the black particles are black glass microspheres with the particle size of 5-45mm, or black particles with the particle size of 5-45mm, or black, non-reflective, transparent and flaky silica glass, 1-30g of the black particles are added according to 100mL of a coating substrate, the thickness of the silica glass is 200-300nm, and the width of the silica glass is 40-50 mu m.
3. A rear projection coating according to claim 1, wherein: the coating substrate is water paint or oil paint.
4. A rear projection coating according to claim 3, wherein: the water-based paint comprises the following components in parts by volume: 400-500mL of water-based acrylic emulsion, 1-2mL of defoaming agent, 1-2mL of wetting agent, 1-2mL of flatting agent, 20-30mL of film-forming assistant and 0.5-1mL of adhesive.
5. The method of claim 1, wherein the step of preparing the rear projection coating comprises the following steps: the amorphous calcium aluminum silicate and the coating substrate are stirred for 2-5 minutes until uniformly mixed.
6. The method of claim 2, wherein the step of preparing the rear projection coating comprises the following steps: stirring the amorphous calcium aluminum silicate, the coating substrate and the black particles for 2-5 minutes until the materials are uniformly mixed.
7. A rear projection screen, comprising: the rear projection coating comprises a rear projection substrate and the rear projection coating applied to the surface of the rear projection substrate, wherein the rear projection coating is formed by any one of claims 1 to 4.
8. A rear projection screen according to claim 7, wherein: the back projection substrate is a plane substrate or a curved substrate.
9. A rear projection screen according to claim 7, wherein: the back projection substrate is glass, an acrylic plate or a transparent plastic plate.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412945.7A CN111635678A (en) | 2019-05-17 | 2019-05-17 | Rear projection coating and rear projection screen |
| PCT/CN2020/090010 WO2020233466A1 (en) | 2019-05-17 | 2020-05-13 | Rear-projection coating and rear-projection screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910412945.7A CN111635678A (en) | 2019-05-17 | 2019-05-17 | Rear projection coating and rear projection screen |
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| Publication Number | Publication Date |
|---|---|
| CN111635678A true CN111635678A (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910412945.7A Pending CN111635678A (en) | 2019-05-17 | 2019-05-17 | Rear projection coating and rear projection screen |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111635678A (en) |
| WO (1) | WO2020233466A1 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593102A (en) * | 1979-01-05 | 1980-07-15 | Mitsubishi Rayon Co Ltd | Acrylic laminated plate for high diffusion of light |
| JPS5617339A (en) * | 1979-07-20 | 1981-02-19 | Dainippon Printing Co Ltd | Penetrating type television screen and its manufacture |
| CN109581802A (en) * | 2018-10-23 | 2019-04-05 | 崔林杰 | A kind of environment-friendly type projection transmission screen and preparation method thereof |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10129899A1 (en) * | 2001-06-21 | 2003-01-09 | Basf Coatings Ag | Aqueous coating material curable physically, thermally or thermally and with actinic radiation and its use |
| CN1234046C (en) * | 2001-12-26 | 2005-12-28 | 中国科学院理化技术研究所 | Microbead type rear projection screen and its manufacturing method |
| KR100708460B1 (en) * | 2005-01-13 | 2007-04-18 | 최희천 | A coating material for concrete structure and a construction method using the same |
| CN1333302C (en) * | 2005-05-26 | 2007-08-22 | 马莒生 | Passive nano type projection displaying screen preparing method |
| JP2007182511A (en) * | 2006-01-10 | 2007-07-19 | Toray Ind Inc | Coating material, method for producing the same and optical article |
| CN101364039A (en) * | 2007-08-10 | 2009-02-11 | 北京理工大学 | Rear-projection display screen with nanometer coatings |
| US9457375B2 (en) * | 2010-02-01 | 2016-10-04 | Chips Unlimited, Inc. | Decorative colored particle dispersion for use in surface coating compositions and method for making same |
| CN204595421U (en) * | 2015-05-15 | 2015-08-26 | 深圳市真屏科技发展有限公司 | Can be used for the projection screen of strong light environment |
| CN106590378A (en) * | 2015-10-14 | 2017-04-26 | 新玉实业股份有限公司 | Screen material, sprinkler irrigation device, projection screen device and using method thereof |
| CN109266149A (en) * | 2018-08-21 | 2019-01-25 | 陈同宝 | A kind of coating and preparation process spraying rear projection screen on silk screen class substrate |
-
2019
- 2019-05-17 CN CN201910412945.7A patent/CN111635678A/en active Pending
-
2020
- 2020-05-13 WO PCT/CN2020/090010 patent/WO2020233466A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5593102A (en) * | 1979-01-05 | 1980-07-15 | Mitsubishi Rayon Co Ltd | Acrylic laminated plate for high diffusion of light |
| JPS5617339A (en) * | 1979-07-20 | 1981-02-19 | Dainippon Printing Co Ltd | Penetrating type television screen and its manufacture |
| CN109581802A (en) * | 2018-10-23 | 2019-04-05 | 崔林杰 | A kind of environment-friendly type projection transmission screen and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| WO2020233466A1 (en) | 2020-11-26 |
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Application publication date: 20200908 |
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