CN110928132A

CN110928132A - Back projection imaging pad pasting

Info

Publication number: CN110928132A
Application number: CN201911243340.6A
Authority: CN
Inventors: 田原野; 李宾; 王拯; 刘振亚; 赵帅
Original assignee: Guangdong Keshili Technology Co ltd
Current assignee: Guangdong Keshili Technology Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-03-27

Abstract

The invention discloses a back projection imaging film, which is a multilayer composite structure and comprises a transparent polyester film base body positioned in the middle layer, wherein an adhesive containing inorganic silicon powder and vacuum-coated optical glass beads are sequentially arranged on the transparent polyester film base body, an environment-friendly pressure-sensitive adhesive and a protective film coated with a release agent are sequentially arranged on the other surface of the transparent polyester film base body, and the protective film comprises an adhesive material and is used for being stuck on an external support. According to the invention, the transparent polyester film substrate is a water-soluble priming material, the adhesive is silicon dioxide, nano-scale hydration, aluminum oxide and graphene, so that light projection is softer and more delicate, directional projection is realized through graphene, photons are not polarized, the coating is prevented from yellowing and aging through the protective film to influence color change, and excellent optical performance, strong light resistance and good visual effect of the rear projection screen are ensured.

Description

Back projection imaging pad pasting

Technical Field

The invention relates to the technical field of photoelectric projection production equipment, in particular to a back projection imaging film.

Background

The existing rear projection orthographic projection system adopts a back projection mode, and comprises a projector and a rear projection optical screen, wherein audiences and the projector are positioned at two sides of the projection screen, the projector is arranged at the bottom in a machine body, part of light is transmitted when the light projected from the projector irradiates to the semitransparent rear projection screen, and the audiences see a projection picture through the transmitted light.

In the prior art, a rear projection screen is easy to diffuse or reflect and is affected by other light sources around, so that a better visual effect can be obtained in a dark environment during projection, the light resistance is poor, a projection picture is easy to be too bright after ambient light is turned off, the irritation to eyes is large after long-time watching, the watching comfort is affected, and the bad influence is easy to cause on eyesight, while a rear projection optical screen is widely applied to various occasions such as a large conference room, a command control center, training education, a video conference, a display hall, an exhibition hall, an auditorium, a music hall, a supermarket, an airport, a station, a wharf, a cafeteria, a show window and the like at present, even in reality, the projection screen works in a bright environment, the surface of the projection screen is very easy to be affected by strong light, so that the phenomena of unclear imaging picture, uneven image, glare, white fog and the like are, these phenomena can greatly reduce the contrast and brightness of the picture, which easily causes users to be viewed unclearly, seriously affects the perception, and easily loses the display, demonstration or advertisement effect of the users, thus providing higher requirements for the optical screen. The invention aims to develop a back projection imaging film with simple manufacturing procedure and excellent optical performance so as to obtain a brand new projection system.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention provides the back projection imaging adhesive film which is excellent in optical performance, strong in light resistance and good in visual effect.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a rear projection formation of image pad pasting, is multilayer composite construction, including the transparent polyester film base member that is located middle one deck, set gradually the gluing agent that contains inorganic silicon powder, vacuum coating's optical glass microballon above the transparent polyester film base member, its another side has set gradually environment-friendly pressure sensitive adhesive, scribbles the protection film of release agent, the protection film includes adhesive material for paste on outside supporter.

Furthermore, the protective film is made of paper or polyester film of composite polyethylene film, and an antioxidant, an anti-aging agent and an ultraviolet absorber are contained in the protective film.

Further, the transparent polyester film substrate is a water-soluble priming material, and the water-soluble priming material is one or more of a polyester film (BOPET), a polypropylene film (BOPP), a polyamide film (BOPA), a polyethylene film (BOPE) and polyvinyl chloride (PVC).

Further, the adhesive comprises silicon dioxide, nanoscale hydrate, aluminum oxide and graphene, and is uniformly coated on the surface of the transparent polyester film substrate after being mixed according to a certain proportion.

Further, the external support is glass, acrylic or other transparent and adhesive carriers with proper area.

Further, the external support is AG glass, and the thickness is 2-10 mm.

Furthermore, the optical glass beads and the nano-microcrystals are mixed, the beads are consistent in size and are uniformly arranged in a single-layer structure, and the diffraction imaging of the optical glass beads on projection light is realized, so that the imaging brightness and the contrast are improved, and the visual angle of a picture is increased to 178 degrees.

Furthermore, the nanometer microcrystal is composed of nanometer polyhedral microcrystal, the nanometer microcrystal is inhomogeneous individual microcrystal, the nanometer microcrystal is used for diffuse reflection, diffraction and interference to light, plays the role of coating imaging and blocking the direct light of the projector, eliminates facula caused by the light source of the projector, and is suitable for projectors with different lenses on the market, including rear projection imaging of ultra-short-focus, short-focus and medium-long-focus projectors.

Furthermore, the material of the optical glass beads may be glass formed by one of titanium dioxide, barium monoxide, zirconium dioxide, zinc monoxide and silicon dioxide, or glass formed by combining a plurality of substances of titanium dioxide, barium monoxide, zirconium dioxide, zinc dioxide and silicon dioxide, or plastic resin.

Furthermore, the optical glass beads are vacuum coating film 100-600 meshes, the particle size is 0.02-0.10 mm, and the refractive index is 1.5-2.5.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the transparent polyester film substrate is a water-soluble priming material, the adhesive comprises silicon dioxide, nano-scale hydration, aluminum oxide and graphene, so that light projection is softer and finer, directional projection is realized through the graphene, photons are not polarized, and the protective film contains the antioxidant, the anti-aging agent and the ultraviolet absorbent, so that the coating is prevented from yellowing and aging, and the color change is prevented from being influenced.

According to the technical scheme, the nano microcrystal and the optical glass bead are mixed and coated on the transparent polyester film substrate to be suitable for projectors with different lenses on the market, and the method comprises the following steps: the ultra-short-focus, short-focus and medium-long-focus projectors enable the visual angle of a picture to be larger, and enable a projected image to be brighter and vivid; the process for jointing the nano-microcrystalline mixed optical structure rear-projection high-definition image film and the AG glass can form a clear and transparent visual effect, and has the functions of increasing transparency of a projection imaging surface, reducing reflection, preventing glare and eye protection, preventing skid and scratch, being easy to write and erase and realizing the purpose of realizing the multi-functionalization of a rear-projection screen.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

FIG. 1 is a schematic view of the present invention;

fig. 2 is a schematic side imaging principle of the present invention.

Detailed Description

The following will be described in detail with reference to the technical solutions in the embodiments of the present invention:

referring to fig. 1, the invention relates to a rear projection imaging film, which not only can form a clear and transparent visual effect, but also can increase transparency of a projection imaging surface, reduce reflection, prevent glare and protect eyes, prevent skidding and scratching, facilitate writing and erasing, and realize multi-functionalization of a rear projection screen, so that an observer can experience better sensory vision, and the method specifically comprises the following steps:

a back projection imaging film is of a multilayer composite structure and comprises a transparent polyester film base body 1 positioned in the middle layer, wherein an adhesive 2 containing inorganic silicon powder and vacuum-coated optical glass beads 3 are sequentially arranged on the transparent polyester film base body 1, and an environment-friendly pressure-sensitive adhesive 4 and a protective film 5 coated with a release agent are sequentially arranged on the other surface of the transparent polyester film base body; the protective film is made of paper or a polyester film of a composite polyethylene film, contains an antioxidant, an anti-aging agent and an ultraviolet absorbent, prevents a coating from yellowing and aging, and influences color change, the protective film 5 comprises an adhesive material and is used for being stuck on an external support, the external support is glass, acrylic or other transparent carriers which can be stuck and have a proper area, the external support is AG glass in the embodiment, and the thickness of the external support is 2-10 mm.

The transparent polyester film substrate 1 is a water-soluble priming material which is one or more of a polyester film (BOPET), a polypropylene film (BOPP), a polyamide film (BOPA), a polyethylene film (BOPE) and polyvinyl chloride (PVC).

The adhesive 2 comprises silicon dioxide, nanoscale hydrated alumina, aluminum oxide and graphene, and is uniformly coated on the surface of the transparent polyester film substrate 1 after being mixed according to a certain proportion, so that light projection is softer and more delicate, directional projection is realized through the graphene, and photons are not polarized.

The optical glass beads 3 are mixed with the nano-microcrystals, the sizes of the optical glass beads are consistent, the optical glass beads are uniformly arranged in a single-layer structure, and the optical glass beads are used for diffraction imaging of projection light, so that the imaging brightness and the contrast are improved, and the visual angle of a picture is increased to 178 degrees; the nano microcrystal consists of nano polyhedral microcrystal, is non-uniform and individual microcrystal, is used for performing diffuse reflection, diffraction and interference on light rays, plays a role in coating imaging and blocking direct light rays of a projector, eliminates light spots caused by a light source of the projector, and is suitable for projectors with different lenses on the market, including back projection imaging of ultra-short-focus projectors, short-focus projectors and medium-long-focus projectors; the optical glass beads 3 may be made of glass formed by one of titanium dioxide, barium monoxide, zirconium dioxide, zinc monoxide and silicon dioxide, glass formed by combining a plurality of substances of titanium dioxide, barium monoxide, zirconium dioxide, zinc dioxide and silicon dioxide, or plastic resin. In a more preferable technical scheme, the optical glass beads 3 are vacuum coated with 100-600 mesh, the particle size is 0.02-0.10 mm, and the refractive index is 1.5-2.5.

The AG glass is processed into a matte non-reflective surface on the reflective surface of the original glass, has lower reflectance compared with the common glass, and reduces the light reflectivity from 8% to below 1%, so that the AG glass can form a clear and transparent visual effect and achieve the purposes of resisting reflective environment light and preventing glare and protecting eyes.

The optimal thickness of AG glass in this embodiment is 4mm, and the material thereof can be inorganic glass or organic glass, and soda-lime glass in inorganic glass is preferred in this embodiment.

The reason for selecting the inorganic glass is that the inorganic glass has the following advantages: 1. high temperature resistance; 2. the product is aging resistant and not easy to deform; 3. purifying air, and absorbing carbon dioxide in the air; 4. the strength is high; 5. the waterproof performance is good; 6. the weight is light, and only the organic glass is used; 7. the cost is low; 8. heat insulation and sound absorption; 9. is non-combustible; 10. the waste is convenient to treat, can be used for landfill after being smashed, has no pollution to water source, soil and air, and is an ideal environment-friendly material.

The foregoing is directed to embodiments of the present application and it is understood that various modifications and enhancements may be made by those skilled in the art without departing from the principles of the application and are intended to be included within the scope of the application.

Claims

1. The utility model provides a rear projection formation of image pad pasting, is multilayer composite construction, its characterized in that: the vacuum coating film comprises a transparent polyester film base body positioned on the middle layer, wherein an adhesive containing inorganic silicon powder and vacuum-coated optical glass microspheres are sequentially arranged on the transparent polyester film base body, an environment-friendly pressure-sensitive adhesive and a protective film coated with a release agent are sequentially arranged on the other surface of the transparent polyester film base body, and the protective film comprises an adhesive material and is used for being adhered to an external support.

2. The rear projection imaging sticker of claim 1, wherein: the protective film is made of paper or a polyester film of a composite polyethylene film, and an antioxidant, an anti-aging agent and an ultraviolet absorbent are contained in the protective film.

3. The rear projection imaging sticker of claim 1, wherein: the transparent polyester film substrate is a water-soluble priming material which is one or more of a polyester film (BOPET), a polypropylene film (BOPP), a polyamide film (BOPA), a polyethylene film (BOPE) and polyvinyl chloride (PVC).

4. The rear projection imaging sticker of claim 1, wherein: the adhesive comprises silicon dioxide, nanoscale hydrated alumina and graphene, and is uniformly coated on the surface of the transparent polyester film substrate after being mixed according to a certain proportion.

5. The rear projection imaging sticker of claim 1, wherein: the external support is glass, acrylic or other transparent carriers which can be pasted and have proper areas.

6. The rear projection imaging sticker of claim 1, wherein: the external support is AG glass and has a thickness of 2-10 mm.

7. The rear projection imaging sticker of claim 1, wherein: the optical glass beads are mixed with the nano-microcrystals, and the optical glass beads are consistent in size, uniform and arranged in a single-layer structure.

8. The rear projection imaging patch as claimed in claim 7, wherein: the nano-microcrystal is composed of nano-scale polyhedral microcrystal, and the nano-microcrystal is non-uniform individual microcrystal.

9. The rear projection imaging sticker of claim 1, wherein: the material of the optical glass beads can be glass formed by one of titanium dioxide, barium monoxide, zirconium dioxide, zinc monoxide and silicon dioxide, or glass formed by combining a plurality of substances of titanium dioxide, barium monoxide, zirconium dioxide, zinc dioxide and silicon dioxide, or plastic resin.

10. The rear projection imaging sticker of claim 1, wherein: the optical glass beads are 100-600 meshes of vacuum coating film, the particle size is 0.02-0.10 mm, and the refractive index is 1.5-2.5.