CN114660884A

CN114660884A - Ambient light resistant laser television screen and preparation method thereof

Info

Publication number: CN114660884A
Application number: CN202011529125.5A
Authority: CN
Inventors: 李刚; 张毅; 夏寅; 薛永富; 陈建文; 唐海江; 张彦
Original assignee: Ningbo Exciton Technology Co Ltd
Current assignee: Ningbo Exciton Technology Co Ltd
Priority date: 2020-12-22
Filing date: 2020-12-22
Publication date: 2022-06-24

Abstract

The invention relates to the field of laser televisions, in particular to a laser television screen, and particularly relates to an ambient light resistant laser television screen and a preparation method thereof. The invention provides an anti-ambient light laser television screen and a preparation method thereof, aiming at solving the problem of low ambient light shielding rate of the existing laser television screen. The screen comprises a light inducing layer, a bonding layer, a diffusion layer, a common filter layer, a prism layer and a reflecting layer from top to bottom in sequence, and the light inducing structure comprises a plurality of light inducing triangular prism and a plurality of light capturing concave lens arrays; the light-capturing concave lens array is a lower layer structure in the light-inducing structure, one light-capturing concave lens is a regular hexagon with a triangular notch on the top plane shape, and six vertexes of the regular hexagon are occupied by the light-inducing triangular prism; the light-inducing triangular prism structure is parallel to the normal direction of the screen. The ambient light shielding rate of the laser television screen provided by the invention reaches more than 93%.

Description

Ambient light resistant laser television screen and preparation method thereof

Technical Field

The invention relates to the field of laser televisions, in particular to a laser television screen, and particularly relates to an ambient light resistant laser television screen and a preparation method thereof.

Background

The laser television is a projection display device which adopts laser as a display light source, is provided with a special optical screen and a sound device and can receive broadcast television programs or internet television programs.

The laser has very high intensity, can satisfy the demand of high brightness display system, and the laser has and its good directionality, can realize very high resolution ratio in scanning formula display system, and the laser spectrum is the line spectral line, and color resolution ratio is high, and the color saturation is high. The laser light source has three characteristics of high brightness, good directivity and good monochromaticity, and is used for displaying and is the basis for realizing high-fidelity image reproduction.

The display principle of the laser television is light reflection, and an optical screen with a Fresnel microstructure is utilized to directionally reflect incident laser light sources regionally to a visual area of a viewer. However, due to the light reflection principle adopted, the light is inevitably reflected to the ambient light with the same effect, for example, a ceiling fluorescent lamp, an outdoor ambient light, and indoor stray light in other directions all project a laser television screen, and are reflected to a visual area of a viewer after being directionally integrated by a fresnel prism in the screen, so that the laser source information which should be displayed is influenced by the ambient light, and thus, a picture displaying a white scene becomes yellow and white or distorted, a picture displaying a black scene appears gray and black or gray and distorted, the picture contrast is reduced, and the picture quality viewing experience of the consumer is influenced.

The light-resistant laser television screen on the market at present adopts the technical means that a color layer with a certain thickness is arranged in the middle of the screen, the color is black and gray, so that ambient light incident into the laser television screen is absorbed and scattered by the black and gray non-reflective characteristic when the color layer is formed, and the influence of the ambient light on an incident laser source is weakened. The other point is that after the ambient light is incident to the color layer of the screen, the absorption efficiency of the color layer to the ambient light is insufficient (if the black and gray of the color layer is too dark, the laser source is absorbed, the overall display brightness is reduced, and the viewing experience is influenced), a large part of the ambient light penetrates through the color layer to reach the Daphne prism layer, and finally is reflected out of the visual area of the screen to the viewer together with the laser source after being directionally reflected, so that the problems of fuzzy display image quality, low contrast, image distortion and the like are caused.

Disclosure of Invention

In order to solve the problem of low ambient light shielding rate of the conventional laser television screen, the invention provides an ambient light resistant laser television screen and a preparation method thereof. The ambient light shielding rate of the laser television screen provided by the invention reaches more than 93%.

In order to solve the technical problems, the invention provides the following technical scheme:

in a first aspect, the invention provides an ambient light resistant laser television screen, which comprises a light inducing layer, an adhesive layer, a diffusion layer, a common filter layer, a prism layer and a reflecting layer from top to bottom in sequence. The foregoing technical solutions include examples 1 to 9.

Further, the light induction layer sequentially comprises a light induction structure and a polymer film from top to bottom.

Furthermore, the light-inducing structure comprises a plurality of light-inducing triangular prism prisms and a plurality of light-capturing concave lens arrays.

Further, the light capturing concave lens array is a lower layer structure in the light trapping structure, one light capturing concave lens is a regular hexagon with triangular notches at the vertexes in the overlooking plane shape, and six vertexes of the regular hexagon are occupied by the light trapping triangular prism in the light trapping structure; the light-inducing triangular prism structure is parallel to the normal direction of the screen.

Further, the diffusion layer consists of a light scattering layer and a base material layer; the light scattering layer contains micron-sized particles, and the surface of the light scattering layer is provided with a concave-convex surface area.

Further, the light scattering layer comprises bicomponent polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles; the filter layer includes an ink system light curable glue and nano carbon black. The content of the nano carbon black in the filter layer is 0.03-3 wt%.

Further, the prism layer is of a circular-arc Fresnel structure; the reflecting layer is composed of reflecting units and coating resin.

Further, the invention provides an ambient light resistant laser television screen, which sequentially comprises a light inducing layer, a bonding layer, a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom. The light inducing layer sequentially comprises a light inducing structure and a polymer film from top to bottom. The light trapping structure comprises two groups of optical units, one group is a light trapping triangular prism array distributed along the direction parallel to the normal direction of the screen, and the other group is a light capturing concave lens array which is perpendicular to the normal direction of the screen and is connected with the light trapping prism. The thickness range of the light inducing structure is 50-800 nm. The thickness range of the polymer film is 25-250 mu m. The light trapping concave lens array in the light trapping layer is a lower layer structure in the light trapping structure, one light trapping concave lens is a regular hexagon with triangular notches at the vertexes in the overlooking plane shape, and six vertexes of the regular hexagon are occupied by the light trapping triangular prism in the light trapping structure. The outer edge of the light capturing concave lens in the light trapping layer is basically in a regular hexagon shape. The side length of the light-catching concave lens in the light-trapping layer refers to the side length of one side of a regular hexagon, the range of the side length of the light-catching concave lens in the light-trapping layer is 100-600nm, and the range of the depth of the light-catching concave lens in the light-trapping layer is 10-100 nm. The light trapping triangular prism structure array in the light trapping layer is a light trapping triangular prism array which is parallel to the normal direction of the screen and is located at the notches of six vertexes of the regular hexagon of the light trapping concave lens. The upper surface and the lower surface of the light-inducing prism lens are triangular. The upper bottom surface and the lower bottom surface of each light-inducing triangular prism are triangular, the triangular shapes of the upper bottom surface and the lower bottom surface of each light-inducing triangular prism are the same, the length range of the longest edge in the triangular shape is 20-100nm, and the length range of the shortest edge is 10-60 nm. The height range of the light-inducing triangular prism is 10-250 nm. The diffusion layer is composed of a light scattering layer and a base material layer. The optical function area of the light scattering layer for fully scattering the incident light is divided into two types, one is a micron-sized particle area, and the other is a concave-convex surface area. The micron-sized particles have a particle size ranging from 1 to 50 μm. The thickness of the diffusion layer is in the range of 75-300 μm. The light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles. The common filter layer includes an ink system photo-curable glue and nano-carbon black. The thickness of the ordinary filter layer is in the range of 5-80 μm. The prism layer is of an arc Fresnel structure, and the thickness range of the prism layer is 30-100 mu m. The reflecting layer is composed of reflecting units and coating resin, and the thickness range of the reflecting layer is 0.5-50 mu m.

In a second aspect, the present invention provides an ambient light resistant laser television screen, which comprises, in order from top to bottom, a diffusion layer, a filter layer, a prism layer, and a reflective layer. The foregoing technical solutions include examples 11 to 19.

Further, the diffusion layer sequentially comprises a light scattering layer and a substrate layer from top to bottom; the light scattering layer comprises micron-sized particles, and the surface of the light scattering layer is provided with a concave-convex structured surface; the light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles.

Further, the filter layer comprises a nano rectangular light-transmitting area and a nanosphere-shaped light-absorbing area; the nano rectangular blocking light-transmitting area is the lower layer of the filter layer, and the nano spherical light-absorbing area is arranged in the rectangular blocking light-transmitting area and above the nano rectangular blocking light-transmitting area.

Further, the length range of the light-transmitting area of the nano rectangular square is 60-200nm, the width range is 40-100nm, and the height range is 10-25 nm; the diameter range of the light absorption area of the nanospheres is 1-10 nm.

Furthermore, the prism layer is of an arc Fresnel structure, and the reflecting layer is composed of reflecting units and coating resin.

Furthermore, the invention provides an ambient light resistant laser television screen, which sequentially comprises a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom. The diffusion layer sequentially comprises a light scattering layer and a base material layer from top to bottom. The optical function area of the light scattering layer for fully scattering the incident light is divided into two areas, one is a micron-sized particle area, and the other is the concave-convex surface of the light scattering layer. The micron-sized particles have a particle size ranging from 1 to 50 μm. The thickness of the diffusion layer is in the range of 75-300 μm. The light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles. The filter layer includes a nano-rectangular light transmitting area and a nanosphere-shaped light absorbing area. The nano rectangular blocking light-transmitting area is the lower layer of the filter layer, and the nano spherical light-absorbing area is arranged in the rectangular blocking light-transmitting area and above the nano rectangular blocking light-transmitting area. The thickness of the filter layer is in the range of 80-350 nm. The length range of the light-transmitting area of the nanometer rectangular square is 60-200nm, the width range is 40-100nm, and the height range is 10-25 nm. The diameter range of the light absorption area of the nanospheres is 1-10 nm. The prism layer is of an arc Fresnel structure, and the thickness range of the prism layer is 30-100 mu m. The reflecting layer is composed of reflecting units and coating resin, and the thickness range of the reflecting layer is 0.5-50 mu m.

In a third aspect, the present invention provides an ambient light resistant laser television screen, which comprises, from top to bottom, a light inducing layer, an adhesive layer, a diffusion layer, a filter layer, a prism layer, and a reflective layer. The foregoing technical solutions include examples 21 to 29.

Further, the invention provides an ambient light resistant laser television screen, which sequentially comprises a light inducing layer, a bonding layer, a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom. The light trapping layer comprises a light trapping structure and a high polymer film. The light-inducing structure comprises two groups of optical units, one group is a light-inducing triangular prism array distributed along the direction parallel to the normal line of the screen, and the other group is a light-trapping concave lens array which is perpendicular to the normal line direction of the screen and is connected with the light-inducing triangular prism (referred to as a light-inducing column for short). The thickness range of the light inducing structure is 50-800 nm. The thickness range of the polymer film is 25-250 mu m. The light trapping concave lens array in the light trapping layer is a lower layer structure in the light trapping structure, one light trapping concave lens is a regular hexagon with triangular notches at the vertexes in the overlooking plane shape, and six vertexes of the regular hexagon are occupied by the light trapping triangular prism in the light trapping structure. The outer edge of the light-trapping concave lens in the light-trapping layer is basically in a regular hexagon shape. The side length of the light-trapping concave lens in the light-trapping layer refers to the side length of one side of a regular hexagon, the range of the side length of the light-trapping concave lens in the light-trapping layer is 100-600nm, and the range of the depth of the light-trapping concave lens in the light-trapping layer is 10-100 nm. The light trapping triangular prism structure array in the light trapping layer is parallel to the normal direction of the screen and is located at the notches of six vertexes of the regular hexagon of the light trapping concave lens. The upper surface and the lower surface of the light-inducing prism lens are triangular. The upper bottom surface and the lower bottom surface of each light-inducing triangular prism are triangular, the three sides of the upper bottom surface and the lower bottom surface of each light-inducing triangular prism are identical, the length range of the longest side in the three sides is 20-100nm, and the length range of the shortest side is 10-60 nm. The height range of the light-inducing triangular prism is 10-250 nm. The diffusion layer is composed of a light scattering layer and a base material layer. The optical function area of the light scattering layer for fully scattering the incident light is divided into two areas, one is a micron-sized particle area, and the other is the concave-convex surface of the light scattering layer. The micron-sized particles have a particle size ranging from 1 to 50 μm. The thickness of the diffusion layer is in the range of 75-300 μm. The light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles. The filter layer consists of a nano rectangular square light-transmitting area and a nanosphere-shaped light-absorbing area. The nano rectangular blocking light-transmitting area is the lower layer of the filter layer, and the nano spherical light-absorbing area is arranged in the rectangular blocking light-transmitting area and above the nano rectangular blocking light-transmitting area. The thickness of the filter layer is in the range of 80-350 nm. The length range of the light-transmitting area of the nano rectangular square is 60-200nm, the width range is 40-100nm, and the height range is 10-25 nm. The diameter range of the light absorption area of the nanospheres is 1-10 nm. The prism layer is of an arc Fresnel structure, and the thickness range of the prism layer is 30-100 mu m. The reflecting layer is composed of reflecting units and coating resin, and the thickness range of the reflecting layer is 0.5-50 mu m.

Furthermore, the invention provides an anti-ambient light laser television screen, which consists of a light inducing layer, an adhesive layer, a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom in sequence.

Furthermore, the screen comprises six layers, from top to bottom, a light induction layer for trapping the ambient light irradiating the surface of the screen from different directions, an adhesive layer for adhering the light induction layer and the diffusion layer, a diffusion layer for homogenizing the laser source and the ambient light guided in through the adhesive layer by the light induction layer, a filter layer for filtering most of the ambient light, a prism layer for enabling the incident laser source to be transmitted in a directional manner, and a reflection layer for enabling the laser source refracted out from the prism layer to be reflected.

Furthermore, the light trapping layer is formed by compounding a light trapping structure and a polymer film. The light inducing layer is divided into an upper surface and a lower surface, the upper surface is a light inducing structure facing a viewer, and the lower surface is a polymer film. The light-inducing structure in the light-inducing layer is an optical microstructure functional layer designed by a specific optical structure, the microstructure directly faces to a viewer, the light-inducing structure is made of acrylic light-cured resin, the light-inducing structure is formed on one surface of a high polymer film, and the other surface of the high polymer film is connected with the upper surface of the bonding layer of the laser screen.

Furthermore, the main function of the light-inducing layer is two parts, one part is to ensure that most of light sources of the laser source, which are lost due to unnecessary scattering or refraction on the surface, can be smoothly induced to enter the rear functional layer of the laser screen when the light source laser source scans and irradiates the surface of the screen. The other part is that the light inducing structure of the light inducing layer can induce most of ambient light irradiated to the surface of the screen from all directions, so that the light irradiated to the surface of the screen from all directions is projected to enter the functional layer at the rear end of the screen, and the influence of direct reflection of the ambient light on the surface of the laser screen on image quality is reduced.

Furthermore, the light-inducing structure in the light-inducing layer is formed by UV light-cured resin raw materials of an acrylic acid system and is a structured optical function layer, and the light-inducing structure comprises two groups of optical units, one group is a light-inducing triangular prism array distributed along the direction parallel to the normal line of the screen, and the other group is a light-trapping concave lens array which is perpendicular to the normal line direction of the screen and is connected with the light-inducing prism.

Furthermore, the resin molding raw material of the light-inducing structure in the light-inducing layer consists of main resin, viscosity diluent resin, a photoinitiator and a leveling aid.

Further, the thickness of the light inducing structure ranges from 50nm to 800 nm.

Further, the thickness range of the light inducing structure is 100-600 nm.

Furthermore, the thickness of the light-inducing structure is in the range of 200-450 nm.

The thickness of the light-inducing structure is the sum of the depth of the light-capturing concave lens and the height of the light-inducing triangular prism.

Further, the polymer film in the light-inducing layer is selected from one of polymethyl methacrylate (PMMA), Polycarbonate (PC), polyethylene terephthalate (PET), polyvinyl chloride (PVC), methyl methacrylate-styrene copolymer (MS), styrene (PS), ethylene-vinyl acetate copolymer (EVA), High Density Polyethylene (HDPE), and polyvinylidene fluoride (PVDF).

Further, the polymer film in the light-inducing layer is selected from one of polymethyl methacrylate, polycarbonate, polyethylene terephthalate, polyvinyl chloride and methyl methacrylate-styrene copolymer.

Furthermore, the polymer film in the light inducing layer is selected from one of polyethylene terephthalate, polyvinyl chloride and polymethyl methacrylate.

Further, the thickness range of the polymer film is 25-250 μm.

Further, the thickness range of the polymer film is 50-200 μm.

Further, the thickness range of the polymer film is 75-150 μm.

Further, the light capturing concave lens array in the light trapping layer is a lower layer structure in the light trapping structure, one light capturing concave lens is a regular hexagon with triangular notches at the vertexes in a plan view plane shape, six vertexes of the regular hexagon are occupied by the light trapping triangular prism in the light trapping structure, and the light capturing concave lens array is a concave lens array which is vertical to the plan view plane direction and is in a concave arc surface in a three-dimensional shape.

Further, the concave light-trapping lens in the light-trapping layer mainly plays a role of utilizing the arc-shaped concave surface structure to refract and trap the ambient light from the light-trapping triangular prism and the laser light source which is scanned to the surface of the light-trapping triangular prism, and transmit the ambient light to the rear functional layer (diffusion layer) of the laser screen.

Further, the outer edge of the light capturing concave lens in the light trapping layer is basically in a regular hexagon shape. The side length of the light-trapping concave lens in the light-trapping layer refers to the side length of one side of a regular hexagon.

Further, the side length range of the light-trapping concave lens in the light-trapping layer is 100-600 nm.

Further, the side length range of the light trapping concave lens in the light trapping layer is 150-500 nm.

Further, the side length range of the light trapping concave lens in the light trapping layer is 250-450 nm.

The depth of the light-catching concave lens in the light-trapping layer refers to the vertical depth of the central point of the concave lens.

Further, the depth range of the light capturing concave lens in the light trapping layer is 10-100 nm.

Further, the depth range of the light capturing concave lens in the light trapping layer is 20-80 nm.

Further, the depth of the light-trapping concave lens in the light-trapping layer is in the range of 40-60 nm.

Furthermore, the light trapping triangular prism structure array in the light trapping layer is parallel to the normal direction of the screen and is located at the notches of six vertexes of the regular hexagon of the light trapping concave lens. The upper surface and the lower surface of the light-inducing prism lens are triangular (namely triangular), and the light effect of the light-inducing prism is better when the light-inducing prism lens is generally regular triangular (namely regular triangular).

Furthermore, the light-inducing triangular prism array structure has the main function of inducing most of directional ambient light to directly enter the optical function layer behind the screen through the inside of the light-inducing triangular prism or to enter the optical function layer behind the screen after being induced to the light-capturing concave lens, so that the mixed reflection of the ambient light caused by the surface reflection of light rays to the visible area of an observer is reduced.

Further, the upper bottom surface and the lower bottom surface of each light-inducing triangular prism are triangular, the three sides of the upper bottom surface and the lower bottom surface of each light-inducing triangular prism are identical, the length range of the longest side in the three sides is 20-100nm, and the length range of the shortest side is 10-60 nm.

Furthermore, the length range of the longest side in the trilateral is 25-80nm, and the length range of the shortest side is 15-50 nm.

Furthermore, the length of the longest side in the trilateral is in the range of 30-60nm, and the length of the shortest side is in the range of 20-40 nm.

Further, the height range of the light-inducing triangular prism is 10-250 nm.

Further, the height range of the light-inducing triangular prism is 55-200 nm.

Further, the height of the light-inducing triangular prism ranges from 70nm to 150 nm.

Furthermore, the material of the bonding layer is a layer of transparent OCA double-sided adhesive tape, the general component is an acrylic resin system, and the optical requirements of the screen related to the invention can be met by the common optical-grade transparent OCA double-sided adhesive tape on the market.

Furthermore, the adhesive layer mainly serves to bond the light-inducing layer and the diffusion layer without affecting the optical properties of the light-inducing layer and the diffusion layer.

Further, the thickness of the adhesive layer ranges from 5 to 100 μm.

Further, the thickness of the adhesive layer ranges from 25 to 80 μm.

Further, the adhesive layer has a thickness ranging from 30 to 50 μm.

Further, the diffusion layer is composed of a light scattering layer and a base material layer. The upper surface is a light scattering layer (also the upper surface of the light scattering layer) which is connected to the adhesive layer in the laser screen. The lower surface is the substrate layer (also is the lower surface of substrate layer), is connected with the filter layer. The lower surface of the light scattering layer is formed on the upper surface of the base material layer.

Further, the main function of the light scattering layer of the diffusion layer is to sufficiently scatter light incident through the light-inducing layer and the adhesive layer.

Further, the thickness of the diffusion layer is in the range of 75-300 μm.

Further, the thickness of the diffusion layer is in the range of 100-250 μm.

Further, the thickness of the diffusion layer is in the range of 150-200 μm.

Furthermore, the light scattering layer of the diffusion layer is prepared from a mixed solution of two-component polyurethane system glue and micron-sized particles, and optical functional areas for fully scattering incident light in the light scattering layer are divided into two types, wherein one type is a micron-sized particle area, and the other type is the concave-convex surface of the diffusion layer.

Furthermore, the scattering effect of the micron-sized particle region on the incident light is mainly to utilize the principle of a spherical lens, and the incident light is scattered and refracted on the surface of the particle, so that the incident light is diffused at a certain angle, and the purpose of light uniformization is achieved.

The surface of the diffusion layer formed after the polyurethane glue is cured is uneven, the uneven surface is equivalent to an irregular structural scattering structure, and the polyurethane glue has a very good help for scattering and homogenizing incident light.

The polyurethane glue forms a periodic concave-convex connection surface due to the difference of the shrinkage rates of the components in the system in the curing process, the periodic concave-convex connection surface is equivalent to irregular structural scattering, and the regular and irregular structural scattering is very helpful for the scattering and the dodging of incident light due to the difference of the shrinkage rates of the components in the glue system due to the periodic fluctuation in a certain range.

Further, the micron-sized particles are selected from one of silica, polysiloxane, polystyrene, or polycarbonate.

Further, the micron-sized particles have a particle size ranging from 1 to 50 μm.

Further, the micron-sized particles have a particle size ranging from 10 to 40 μm.

Further, the micron-sized particles have a particle size ranging from 20 to 35 μm.

Further, the two-component polyurethane glue system (also called two-component polyurethane system glue) is composed of a monomer 1, a monomer 2, a curing agent and a catalyst.

Further, the monomer 1 is selected from one of polybutene diol, polybutadiene-acrylonitrile copolymer diol, polyoxypropylene triol or polyoxypropylene castor oil polyol.

Further, the monomer 2 is selected from one of polyethylene glycol adipate glycol, polyethylene glycol-propylene glycol adipate glycol, polyethylene 1, 4-butanediol adipate glycol, and polyethylene neopentyl glycol adipate 1 or 6-hexanediol adipate glycol.

Further, the curing agent is selected from one of 1, 6-hexamethylene diisocyanate, dicyclohexyl methane diisocyanate or toluene diisocyanate.

Further, the catalyst is selected from one of stannous octoate, triethylene diamine and dibutyltin dilaurate.

Further, the light scattering layer includes a two-component polyurethane system glue and micro-sized particles. The raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles.

Further, the raw material of the light scattering layer comprises 30-70 parts of monomer 1, 20-50 parts of monomer 2, 5-15 parts of curing agent, 0.5-3 parts of catalyst and 15-40 parts of micron-sized particles.

Furthermore, the raw materials of the light scattering layer comprise 40-60 parts of monomer 1, 25-45 parts of monomer 2, 8-13 parts of curing agent, 1-2.5 parts of catalyst and 20-35 parts of micron-sized particles

Furthermore, the raw material of the substrate layer is the same as that of the polymer film in the light-inducing layer, and the raw materials of the substrate layer and the polymer film in the light-inducing layer have mutual substitution.

Further, the filter layer is composed of a nano rectangular light-transmitting area and a nanosphere-shaped light-absorbing area. The nano rectangular blocking light-transmitting area is the lower layer of the filter layer, and the nano spherical light-absorbing area is arranged in the rectangular blocking light-transmitting area and above the nano rectangular blocking light-transmitting area. The rectangular blocks are rectangular blocks.

Furthermore, the filter layer mainly has the function of nanocrystallizing a light absorption material, and meanwhile, the light absorption material is placed in a nanocrystallized rectangular square array, and compared with a traditional homogeneous coating type light absorption layer, the nanosphere-shaped light absorption area is larger in light absorption effective area and has better absorption efficiency on useless environment light with weak light intensity. The nanosphere-shaped light absorption area is arranged in the nano rectangular light transmission area, and on the nano rectangular light transmission area, compared with the traditional homogeneous coating type light absorption layer, the nano rectangular light transmission area has more effective light transmission areas, and the light filter layer has more excellent transmission efficiency on effective light energy.

Further, the thickness of the filter layer is in a range of 80-350 nm.

Further, the thickness of the filter layer is in the range of 125-300 nm.

Furthermore, the thickness of the filter layer is in the range of 180-250 nm.

Further, the light-transmitting area of the nano rectangular square of the filter layer is formed by a two-component polyacrylate PSA adhesive.

Furthermore, the raw materials of the double-component polyacrylate PSA adhesive comprise a polyacrylate component 1, a polyacrylate component 2, tackifying resin, an anti-aging agent and a crosslinking agent.

Furthermore, the two-component polyacrylate PSA adhesive consists of 10-50 parts by weight of polyacrylate component 1, 20-60 parts by weight of polyacrylate component 2, 1-20 parts by weight of tackifying resin, 0.1-5 parts by weight of anti-aging agent and 1-25 parts by weight of crosslinking agent.

Further, the two-component polyacrylate PSA adhesive consists of 15-40 parts of polyacrylate component 1, 25-50 parts of polyacrylate component 2, 3-18 parts of tackifying resin, 0.5-4 parts of anti-aging agent and 5-20 parts of crosslinking agent.

Furthermore, the two-component polyacrylate PSA adhesive consists of 20-35 parts of polyacrylate monomer 1, 30-45 parts of polyacrylate monomer 2, 5-12 parts of tackifying resin, 1-3 parts of anti-aging agent and 8-15 parts of crosslinking agent.

Further, the polyacrylate component 1 is selected from one of polybutyl acrylate, poly-2-ethylhexyl acrylate, polymethyl acrylate, or polyhydroxyethyl acrylate.

Further, the polyacrylate component 2 is selected from one of polyglycidyl methacrylate, hydroxypropyl methacrylate, isooctyl methacrylate, or n-butyl methacrylate.

Further, the tackifying resin is selected from one of octyl ester of hydrogenated rosin, methyl ester of rosin, pentaerythritol ester of perhydrogenated rosin, or glycerol ester of dimerized rosin.

Further, the anti-aging agent is selected from one of 2, 5-di-tert-butyl hydroquinone, styrenated phenol or 2, 6-di-tert-butyl-p-ethylphenol.

Further, the cross-linking agent is selected from one of hexamethylene diisocyanate, xylylene diisocyanate or toluene diisocyanate.

Furthermore, the length range of the light-transmitting area of the nanometer rectangular square is 60-200nm, the width range is 40-100nm, and the height range is 10-25 nm.

Furthermore, the length range of the light-transmitting area of the nano rectangular square is 80-180nm, the width range is 50-90nm, and the height range is 12-22 nm.

Furthermore, the length range of the light-transmitting area of the nano rectangular square is 80-150nm, the width range is 60-70nm, and the height range is 15-18 nm.

Furthermore, the nano-sphere light absorption region is prepared by mixing the ink system photocureable glue and nano-carbon black and then curing the mixture into a sphere. The nanospheres are light absorbing regions.

The nano carbon black is high-definition nano carbon black serving as a filler component.

Further, the diameter of the light absorption region of the single nanosphere is 1-10 nm.

Furthermore, the diameter range of the light absorption area of the nanospheres is 2-8 nm.

Further, the diameter of the light absorption region of the nano-sphere is in the range of 4-6 nm.

Furthermore, the ink system photo-curing adhesive is generally composed of a prepolymer, a diluent monomer, a photoinitiator and an auxiliary agent.

Furthermore, the prepolymer is a low molecular weight acrylic prepolymer containing carbon-carbon unsaturated double bonds.

Furthermore, the prepolymer is selected from polyester acrylic resin, polyurethane acrylic resin, polyether acrylic resin or other low molecular weight acrylic prepolymers containing carbon-carbon unsaturated double bonds.

Further, the diluent monomer is a multifunctional acrylate monomer.

Further, the diluent monomer is selected from alkoxy acrylate monomer, imidazolyl monoacrylic acid monomer, acrylate monomer or other multifunctional acrylate monomer with low viscosity.

Further, the photoinitiator generally contains a long band type initiator such as 819 and a short band type initiator such as 907 or a complex band type initiator such as 184, or other photoinitiators.

Further, the auxiliary agent generally includes one or a combination of at least two of a stabilizer, a leveling agent, an antifoaming agent, a dispersing agent, or other auxiliary agents for improving the performance of the formulation system.

Further, the high-definition nano carbon black as the filler component is selected from one of Wojiangsai 420B, Pasteur 0066K, Deblue chemical DL-286901 or Tianyijiu chemical TYT-5A.

Furthermore, the structure of the prism layer is an arc fresnel structure, the angle design of the fresnel structure depends on the aperture and the design pitch of the required fresnel structure, and can be generally calculated according to known data.

Further, the thickness of the prism layer ranges from 30 to 100 μm.

Further, the thickness of the prism layer ranges from 35 to 80 μm.

Further, the thickness of the prism layer is in the range of 40-60 μm.

Further, the reflecting layer is composed of a reflecting unit and coating resin, the reflecting unit can be selected from metal aluminum, nickel, chromium sheets, organic glass and fluorescent powder, and the coating can be selected from ultraviolet curing acrylic resin, single-component polyester resin or double-component polyurethane resin system.

The reflecting units are dispersed in the coating.

Further, the thickness of the reflecting layer ranges from 0.5 to 50 μm.

Further, the thickness of the reflecting layer ranges from 1 to 30 μm.

Furthermore, the thickness of the reflecting layer ranges from 5 to 20 μm.

The invention also provides a preparation method of the ambient light laser resistant television screen, which comprises the following steps:

(1) preparing a light inducing layer;

(2) preparing a diffusion layer;

(3) preparing a bonding layer;

(4) preparing a filter layer;

(5) preparing a prism layer;

(6) and preparing the reflecting layer.

Furthermore, the light trapping layer is prepared by molding the light trapping structure and the light trapping structure on the upper surface of the polymer film in a bottom-up molding manner.

Furthermore, the light inducing layer is formed in one or two of digital printing, 3D printing, UV light curing micro-copying and letterpress printing.

Furthermore, the diffusion layer is prepared by fully stirring and mixing the mixed solution of the two-component polyurethane system glue and the micron-sized particles, and the stirring and mixing can be performed by electric stirring or magnetic stirring.

Furthermore, the light scattering layer is formed on the substrate layer by applying the mixed liquid by one of blade coating, slit coating and spraying.

Furthermore, the preparation of the bonding layer adopts a surface attaching mode to compositely connect the lower surface of the light inducing layer and the upper surface of the diffusion layer.

Furthermore, the preparation of the filter layer is carried out by adopting a sequential molding mode from bottom to top.

Further, the nano rectangular square light-transmitting area is formed by molding, curing and separating the nano rectangular square light-transmitting area on the nano rectangular square matrix release paper by adopting one of blade coating, slit coating or micro-concave coating modes.

Furthermore, the nano-sphere light absorption area is formed on the nano-rectangular square light transmission area in one of digital printing, 3D printing and gravure printing modes.

Specifically, a rectangular light-transmitting area is formed on a rectangular matrix release paper firstly, then the rectangular light-transmitting area is peeled off, then nanospheres are formed on the rectangular light-transmitting area, and finally the upper surface with the nanospheres is attached to the lower surface of the base material of the diffusion layer. And then forming a prism layer on the lower surface of the rectangular light-transmitting area (namely the lower surface of the filter layer). The reflective layer is then patterned on one side of the prism peaks of the prism layer.

Furthermore, the prism layer is manufactured by adopting a UV light curing micro-replication method.

Furthermore, the reflective layer is manufactured by one of spray forming and gravure forming.

According to the anti-ambient light laser television screen provided by the invention, most of ambient light irradiated to the surface of the screen from all directions can be induced through the light inducing structure in the light inducing layer, so that the light irradiated to the surface of the screen from all directions is projected to enter the functional layer (the functional layer refers to the diffusion layer and the reflection layer) at the rear end of the screen, and thus the influence on the image quality of a viewer caused by the fact that excessive ambient light is reflected to the visual area of the viewer when the ambient light is irradiated to the screen due to direct surface reflection of the ambient light on the surface of the laser screen is reduced.

When a laser source and ambient light pass through the bonding layer and the diffusion layer, the incident laser source and the ambient light can be sufficiently scattered under the dual actions of particle scattering and structure scattering by the micron-sized particle region and the concave-convex surface which are sufficiently scattered for the incident light in the light scattering layer of the diffusion layer, and compared with the laser source which belongs to a light source with weaker light intensity, the ambient light source can be more uniformly scattered and distributed after being scattered by the light scattering layer of the diffusion layer, so that the intensity of the unit ambient light source is uniformly reduced, scattered and transmitted to a subsequent filter layer.

When ambient light reaches the filter layer through the diffusion layer, the filter layer provided by the invention consists of a nano rectangular square light-transmitting area and a nanosphere-shaped light absorption area, the nanosphere-shaped light absorption area is larger in light absorption effective area compared with the traditional homogeneous coating type light absorption layer, most of useless ambient light with unit weak light intensity which is uniformly scattered through the diffusion layer is absorbed in the light wavelength scale level, and when a small amount of ambient light penetrates through the filter layer to reach the prism layer and the reflection layer and is reflected, the filter layer is absorbed by the nanosphere-shaped light absorption area again, so that the useless ambient light which is finally reflected and irradiates the screen area in useful image quality light information reaching the visual area of an observer is very little, and the quality of an observed picture is greatly improved.

Compared with the prior art, the ambient light resistant laser television screen provided by the invention has the advantages that the ambient light shielding rate can reach more than 93%, and the ambient light resistant capability is greatly improved compared with that of the traditional laser television screen.

Drawings

FIG. 1 is a schematic diagram of a vertical cross-sectional structure of an ambient light resistant laser TV screen according to the present invention;

FIG. 2 is a schematic top view of an enlarged light inducing layer of the ambient light resistant laser TV screen according to the present invention;

FIG. 3 is a schematic cross-sectional view of an optical trapping prism and an optical trapping concave lens unit in an optical trapping layer of the ambient light resistant laser TV screen according to the present invention;

FIG. 4 is a schematic top view of an enlarged light inducing layer of the ambient light resistant laser TV screen according to the present invention;

FIG. 5 is a schematic diagram illustrating transmission of incident light rays in different directions by the light-inducing prism of the light-inducing layer of the ambient light resistant laser TV screen according to the present invention;

FIG. 6 is a schematic plan view of a diffusion layer of an ambient light laser resistant TV screen according to the present invention

FIG. 7 is a schematic view of the diffusion layer of the ambient light laser resistant TV screen according to the present invention

FIG. 8 is a schematic plan view illustrating an enlarged filter layer of the ambient light resistant laser TV screen according to the present invention;

FIG. 9 is a schematic diagram showing a partial enlargement of a light-transmitting area of a nano rectangular square and a light-absorbing area of a nano sphere in a filter layer of the ambient light resistant laser TV screen according to the present invention;

fig. 10 is a schematic plan view of a prism layer of the ambient light laser-resistant television screen according to the present invention.

Detailed Description

For a better understanding of the present invention, its structure, and the functional features and advantages attained by its structure, reference is made to the following detailed description of the preferred embodiments taken in conjunction with the accompanying drawings, in which:

the present invention will be described in further detail with reference to specific examples, which should be noted that the present invention is only illustrative and should not be construed as limiting the scope of the present invention. Those skilled in the art may make insubstantial modifications and adaptations to the invention described above.

(1) Using BM-7 brightness meter to measure brightness parameters,

(2) measuring the illumination parameter by using a DT-1301 illuminometer,

(3) and calculating the ambient light shielding rate by adopting the following formula:

β＝(1-L×π/E)×100％

in the formula:

β — ambient light shielding rate, expressed in%;

l-luminance in cd/m²；

E-illuminance, in lx.

The higher the ambient light shielding rate, the better the ambient light shielding rate capability of the laser television screen.

As shown in fig. 1, which is a schematic vertical cross-sectional view of an ambient light resistant laser television screen provided by the present invention, the ambient light resistant laser television screen sequentially includes a light inducing layer 9, the light inducing layer 9 includes a light inducing structure 1 and a polymer film 2, an adhesive layer 3, a diffusion layer 10, the diffusion layer 10 includes a scattering layer 4 and a substrate layer 5, a filter layer 6, a prism layer 7, and a reflective layer 8.

Fig. 2 is a schematic top view showing an enlarged view of the light inducing layer of the ambient light resistant laser tv screen, which is a light capturing concave lens array 11 and a light inducing prism array 12.

Fig. 3 is a schematic cross-sectional view of an optical trapping prism and an optical trapping concave lens unit in an optical trapping layer of the ambient light resistant laser tv screen according to the present invention; a section 13 of the light-inducing prism and a section 14 of the light-capturing concave lens.

FIG. 4 is a schematic top view showing an enlarged view of a light inducing layer of the ambient light resistant laser TV screen according to the present invention; a light trapping prism top-view plane 15 and a light capturing concave lens top-view plane 16.

Fig. 5 is a schematic diagram illustrating transmission of incident light rays in different directions by the light-inducing prism of the light-inducing layer of the ambient light resistant laser television screen according to the present invention; the three-dimensional light source comprises

ambient light

17 and 19 which are incident along two sides of the upper part of the light-inducing prism array at large angles, ambient light 18 which is incident along the central area of the upper part of the light-inducing prism array at small angles,

ambient light

20 and 22 which are incident along the side surfaces of the light-inducing prism array at large angles, ambient light 21 which is incident along the side edges of the light-inducing prism array at small angles and a light-inducing prism three-dimensional unit 23.

FIG. 6 is a schematic plan view of a diffusion layer of the ambient light laser resistant television screen according to the present invention; a micron-sized particle region 25 and a concave-convex surface structure 24 of the diffusion layer.

FIG. 7 is a schematic view of a partially enlarged diffusion layer of the ambient light laser resistant TV screen according to the present invention; a micron-sized particle region 25 and a concave-convex surface structure 24. The relief surface structure is also referred to as relief-structured surface, simply relief surface.

Fig. 8 is a schematic plane view showing an enlarged filter layer of the ambient light resistant laser television screen according to the present invention. A nano rectangular square light-transmitting region 26 and a nano sphere light-absorbing region 27.

Fig. 9 is a partially enlarged schematic view of a nano rectangular square light-transmitting area and a nano sphere light-absorbing area in the filter layer of the ambient light resistant laser television screen according to the present invention, which are respectively a nano rectangular square light-transmitting area 26 and a nano sphere light-absorbing area 27.

Fig. 10 is a schematic enlarged plan view of a prism layer of the ambient light resistant laser tv screen according to the present invention, which is a prism structure 28.

Examples 1 to 9

The invention provides an ambient light resistant laser television screen which sequentially comprises a light inducing layer, a bonding layer, a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom. The light inducing layer sequentially comprises a light inducing structure and a polymer film from top to bottom. The light trapping structure comprises two groups of optical units, one group is a light trapping triangular prism array distributed along the direction parallel to the normal direction of the screen, and the other group is a light capturing concave lens array which is perpendicular to the normal direction of the screen and is connected with the light trapping prism. The thickness range of the light inducing structure is 50-800 nm. The thickness range of the polymer film is 25-250 mu m. The light trapping concave lens array in the light trapping layer is a lower layer structure in the light trapping structure, one light trapping concave lens is a regular hexagon with triangular notches at the vertexes in the overlooking plane shape, and six vertexes of the regular hexagon are occupied by the light trapping triangular prism in the light trapping structure. The outer edge of the light-trapping concave lens in the light-trapping layer is basically in a regular hexagon shape. The side length of the light-trapping concave lens in the light-trapping layer refers to the side length of one side of a regular hexagon, the range of the side length of the light-trapping concave lens in the light-trapping layer is 100-600nm, and the range of the depth of the light-trapping concave lens in the light-trapping layer is 10-100 nm. The light-trapping triangular prism structure array in the light-trapping layer is a light-trapping triangular prism array which is parallel to the normal direction of the screen and is located at the notches of six vertexes of the regular hexagon of the light-trapping concave lens. The upper surface and the lower surface of the light-inducing triangular prism lens are triangular. The upper bottom surface and the lower bottom surface of each light-inducing triangular prism are triangular, the triangular shapes of the upper bottom surface and the lower bottom surface of each light-inducing triangular prism are the same, the length range of the longest edge in the triangular shape is 20-100nm, and the length range of the shortest edge is 10-60 nm. The height range of the light-inducing triangular prism is 10-250 nm. The diffusion layer is composed of a light scattering layer and a base material layer. The optical function area of the light scattering layer for fully scattering the incident light is divided into two types, one is a micron-sized particle area, and the other is a concave-convex surface area. The micron-sized particles have a particle size ranging from 1 to 50 μm. The thickness of the diffusion layer is in the range of 75-300 μm. The light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles. The filter layer includes an ink system light curable glue and nano carbon black. The thickness of the filter layer is in the range of 80-350 nm. The prism layer is of an arc Fresnel structure, and the thickness range of the prism layer is 30-100 mu m. The reflecting layer is composed of reflecting units and coating resin, and the thickness range of the reflecting layer is 0.5-50 mu m.

The technical characteristics of each structure in examples 1 to 9 are shown in tables 1 to 1, tables 1 to 2, and tables 1 to 3.

Examples 11 to 19

The invention provides an ambient light resistant laser television screen which sequentially comprises a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom. The diffusion layer is composed of a light scattering layer and a base material layer. The optical functional area of the light scattering layer for fully scattering the incident light is divided into two types, one is a micron-sized particle area, and the other is the concave-convex surface of the light scattering layer. The micron-sized particles have a particle size ranging from 1 to 50 μm. The thickness of the diffusion layer is in the range of 75-300 μm. The light scattering layer comprises bicomponent polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles. The filter layer includes a nano-rectangular light transmitting area and a nanosphere-shaped light absorbing area. The nano rectangular blocking light-transmitting area is the lower layer of the filter layer, and the nano spherical light-absorbing area is arranged in the rectangular blocking light-transmitting area and above the nano rectangular blocking light-transmitting area. The thickness of the filter layer is in the range of 80-350 nm. The length range of the light-transmitting area of the nano rectangular square is 60-200nm, the width range is 40-100nm, and the height range is 10-25 nm. The diameter range of the light absorption area of the nanospheres is 1-10 nm. The prism layer is of an arc Fresnel structure, and the thickness range of the prism layer is 30-100 mu m. The reflecting layer is composed of reflecting units and coating resin, and the thickness range of the reflecting layer is 0.5-50 mu m.

The technical characteristics of each structure in examples 11 to 19 are shown in tables 2 to 1, 2 to 2, and 2 to 3.

Examples 21 to 29

The invention provides an ambient light resistant laser television screen which sequentially comprises a light inducing layer, an adhesive layer, a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom. The light inducing layer comprises a light inducing structure and a high polymer film. The light-inducing structure comprises two groups of optical units, one group is a light-inducing triangular prism array distributed along the direction parallel to the normal line of the screen, and the other group is a light-trapping concave lens array which is perpendicular to the normal line direction of the screen and is connected with the light-inducing triangular prism (referred to as a light-inducing column for short). The thickness range of the light-inducing structure is 50-800 nm. The thickness range of the polymer film is 25-250 mu m. The light capturing concave lens array in the light trapping layer is a lower layer structure in the light trapping structure, one light capturing concave lens is a regular hexagon with a triangular notch in the plane shape in overlooking, and six vertexes of the regular hexagon are occupied by the light trapping triangular prism in the light trapping structure. The outer edge of the light-trapping concave lens in the light-trapping layer is basically in a regular hexagon shape. The side length of the light-catching concave lens in the light-trapping layer refers to the side length of one side of a regular hexagon, the range of the side length of the light-catching concave lens in the light-trapping layer is 100-600nm, and the range of the depth of the light-catching concave lens in the light-trapping layer is 10-100 nm. The light trapping triangular prism structure array in the light trapping layer is parallel to the normal direction of the screen and is located at the notches of six vertexes of the regular hexagon of the light trapping concave lens. The upper surface and the lower surface of the light-inducing prism lens are triangular. The upper bottom surface and the lower bottom surface of each light-inducing triangular prism are triangular, the three sides of the upper bottom surface and the lower bottom surface of each light-inducing triangular prism are identical, the length range of the longest side in the three sides is 20-100nm, and the length range of the shortest side is 10-60 nm. The height range of the light-inducing triangular prism is 10-250 nm. The diffusion layer is composed of a light scattering layer and a base material layer. The optical functional area of the light scattering layer for fully scattering the incident light is divided into two types, one is a micron-sized particle area, and the other is the concave-convex surface of the light scattering layer. The micron-sized particles have a particle size ranging from 1 to 50 μm. The thickness of the diffusion layer is in the range of 75-300 μm. The light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles. The filter layer is composed of a nano rectangular light-transmitting area and a nanosphere-shaped light-absorbing area. The nano rectangular blocking light-transmitting area is the lower layer of the filter layer, and the nano spherical light-absorbing area is arranged in the rectangular blocking light-transmitting area and above the nano rectangular blocking light-transmitting area. The thickness of the filter layer is in the range of 80-350 nm. The length range of the light-transmitting area of the nano rectangular square is 60-200nm, the width range is 40-100nm, and the height range is 10-25 nm. The diameter range of the light absorption area of the nanospheres is 1-10 nm. The prism layer is of an arc Fresnel structure, and the thickness range of the prism layer is 30-100 mu m. The reflecting layer is composed of reflecting units and coating resin, and the thickness range of the reflecting layer is 0.5-50 mu m.

The technical characteristics of each structure in examples 21 to 29 are shown in tables 3 to 1, 3 to 2, 3 to 3, and 3 to 4.

Comparative example: product number DNP100 "LaserPanel", manufactured by product number Japan printing Press.

The ambient light shielding rates of the ambient light resistant laser television screens provided in examples 1-9, 11-19, 21-29 and the laser television screens provided in comparative examples are shown in tables 4-1, 4-2 and 4-3.

TABLE 4-1

Examples	Ambient light shielding Rate (%)	Center point peak gain
			1	93.2	1.35
2	93.3	1.35
			3	93.1	1.36
4	93.4	1.34
			5	93.6	1.33
6	93.8	1.31
			7	93.9	1.30
8	94.0	1.30
			9	94.2	1.29
Comparative example DNP100"LaserPanel	87	0.98

TABLE 4-2

Examples	Ambient light shielding Rate (%)	Center point peak gain
			11	94.3	1.28
12	94.5	1.27
			13	94.7	1.25
14	94.9	1.24
			15	95.0	1.23
16	95.3	1.21
			17	95.5	1.19
18	95.7	1.17
			19	95.9	1.15
Comparative example DNP100"LaserPanel	86	1.00

Tables 4 to 3

Examples	Ambient light shielding Rate (%)	Center point peak gain
			21	96.0	1.14
22	96.3	1.12
			23	96.5	1.10
24	96.7	1.09
			25	96.9	1.07
26	97.0	1.06
			27	97.2	1.05
28	97.4	1.04
			29	97.7	1.02
Comparative example DNP100"LaserPanel	89	1.02

As can be seen from the ambient light shielding rates provided in tables 4-1, 4-2, and tables 4-3 above, the laser television screens provided by the present invention have high ambient light shielding rate capability, and in particular, the laser television screens provided by examples 7-9 have higher ambient light shielding rate capability.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the disclosure of the present invention are covered by the scope of the claims of the present invention.

Claims

1. The screen is characterized by sequentially comprising a light inducing layer, a bonding layer, a diffusion layer, a common filter layer, a prism layer and a reflecting layer from top to bottom.

2. The ambient light resistant laser television screen of claim 1, wherein the light inducing layer comprises a light inducing structure and a polymer film in sequence from top to bottom.

3. The ambient light resistant laser television screen of claim 2, wherein the light trapping structure comprises a plurality of light trapping triangular prism prisms and a plurality of light trapping concave lens arrays.

4. The ambient light resistant laser television screen according to claim 3, wherein the light capturing concave lens array is a lower layer structure in the light trapping structure, one light capturing concave lens is a regular hexagon with triangular notches at its vertexes in plan view, and six vertexes of the regular hexagon are occupied by light trapping triangular prism prisms in the light trapping structure; the light-inducing triangular prism structure is parallel to the normal direction of the screen.

5. The ambient light resistant laser television screen of claim 1, wherein the diffuser layer is comprised of a light scattering layer and a substrate layer; the light scattering layer contains micron-sized particles, and the surface of the light scattering layer is provided with a concave-convex surface area.

6. The ambient light resistant laser television screen of claim 1, wherein the light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst, and 10-50 parts of micron-sized particles; the filter layer includes an ink system light curable glue and nano carbon black.

7. The screen comprises a light inducing layer, an adhesive layer, a diffusion layer, a filter layer, a prism layer and a reflecting layer from top to bottom in sequence.

8. The ambient light resistant laser television screen of claim 7, wherein the light inducing layer comprises a light inducing structure and a polymer film in sequence from top to bottom.

9. The ambient light resistant laser television screen of claim 8, wherein the light trapping structure comprises a plurality of light trapping triangular prism prisms and a plurality of light trapping concave lens arrays.

10. The ambient light resistant laser television screen according to claim 9, wherein the light capturing concave lens array is a lower layer structure in the light trapping structure, one light capturing concave lens is a regular hexagon with triangular notches at its vertexes in plan view, and six vertexes of the regular hexagon are occupied by light trapping triangular prism prisms in the light trapping structure; the light-inducing triangular prism structure is parallel to the normal direction of the screen.

11. The ambient light resistant laser television screen of claim 7, wherein the diffusion layer is comprised of a light scattering layer and a substrate layer; the light scattering layer contains micron-sized particles, and the surface of the light scattering layer is provided with a concave-convex surface area; the light scattering layer comprises two-component polyurethane system glue and micron-sized particles, and the raw materials of the light scattering layer comprise, by weight, 20-80 parts of monomer 1, 10-60 parts of monomer 2, 1-20 parts of curing agent, 0.1-5 parts of catalyst and 10-50 parts of micron-sized particles; the filter layer includes an ink system light curable glue and nano carbon black.

12. The ambient light resistant laser television screen of claim 7, wherein the filter layer comprises a nano-rectangular block-shaped light transmitting area and a nanosphere-shaped light absorbing area; the nano rectangular blocking light-transmitting area is the lower layer of the filter layer, and the nano spherical light-absorbing area is arranged in the rectangular blocking light-transmitting area and above the nano rectangular blocking light-transmitting area.

13. The ambient light resistant laser television screen of claim 7, wherein the structure of the prism layer is a circular arc fresnel structure; the reflecting layer is composed of reflecting units and coating resin.