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公开(公告)号：US20220221780A1
公开(公告)日：2022-07-14
申请号：US17595800
申请日：2020-05-18
Applicant: APPOTRONICS CORPORATION LIMITED
Abstract: A projection screen includes a substrate with a first substrate surface. The first substrate surface includes a first region and a second region adjacent to the first region. Multiple first wire grid bodies extending in a first direction are provided in the first region. Multiple second wire grid bodies extending in the first direction are provided in the second region. Each first wire grid body includes a first contact surface connected to the substrate and a first surface, and a first angle is formed therebetween. The first angles gradually decrease in a direction from the first region to the second region. Each second wire grid body includes a second contact surface connected to the substrate and a third surface, and a third angle is formed therebetween. The third angles gradually increase in a direction from the first region to the second region.
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公开(公告)号：US20220155667A1
公开(公告)日：2022-05-19
申请号：US17436457
申请日：2020-02-26
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Jie WANG , Hongxiu ZHANG , Wei SUN , Lin WANG , Yi LI
Abstract: A wire grid structure and a manufacturing method therefor, and a projection screen are provided. The manufacturing method includes: extruding a molten mixed material body in a melt extruder to a casting roll to form a casting piece; patterning the casting piece by means of an impression roll to form a precursor having a preset wire grid structure pattern, where the precursor is wound on the impression roll and has a first dimension in a height direction; stretching the precursor by a first group of stretching rolls and a second group of stretching rolls in two opposite directions along a direction perpendicular to the height direction to form the wire grid structure, a preset distance being configured between the first group of stretching rolls and the second group of stretching rolls. The wire grid structure has a second dimension in the height direction that is greater than the second dimension.
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公开(公告)号：US20220276551A1
公开(公告)日：2022-09-01
申请号：US17597381
申请日：2020-06-28
Applicant: APPOTRONICS CORPORATION LIMITED
IPC: G03B21/60
Abstract: A projection screen includes an optical collimating layer and a surface diffusion layer which are arranged in sequence. A grating absorption layer for absorbing ambient light from various directions except a projection light direction is also provided between the optical collimating layer and the surface diffusion layer. The grating absorption layer includes a plurality of light-absorption ring-shaped units with different radii. The plurality of light-absorption ring-shaped units are arranged in a concentric ring. Each of the light-absorption ring-shaped units consists of a plurality of gratings arranged in the circumferential direction of the concentric ring. By taking a vertical symmetrical center line of the projection screen as a center, in a direction extending along the circumferential direction of the concentric ring to the left side and the right side of the projection screen, the distance between two adjacent gratings in the same light-absorption ring-shaped unit gradually increases.
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公开(公告)号：US20210389657A1
公开(公告)日：2021-12-16
申请号：US17286444
申请日：2019-09-26
Applicant: APPOTRONICS CORPORATION LIMITED
Abstract: A projection screen and a processing method therefor, wherein the projection screen comprises, in sequence from the incident side of projection light, a diffusion layer, a microlens array and a substrate. The inner side of the substrate is provided with a Fresnel microstructure, and part of the surface of the Fresnel microstructure is provided with a reflecting layer while the remaining part of the surface is a light absorbing layer. The microlens array is used for focusing the projection light on the reflecting layer. The reflecting layer is used for reflecting projection light back to the field of view of viewers. Ambient light is mostly absorbed by the light absorbing layer. The settings of the structure and dimension of the microlens array enable the projection light to be only incident onto the reflecting layer of the Fresnel microstructure and the ambient light to be mostly absorbed by the light absorbing layer.
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公开(公告)号：US20220291579A1
公开(公告)日：2022-09-15
申请号：US17597434
申请日：2020-06-28
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Lin WANG , Xiaofeng TANG , Wei SUN , Yi LI
IPC: G03B21/60
Abstract: Provided is a projection screen, the taper angles of a plurality of triangular pyramid units arranged in an array are designed to gradually change according to a predetermined relationship, so that the image light emitted from the projector is reflected by a microstructure layer with a triangular pyramid unit and then converges to a range centered on the human eye, which reduces the difference in brightness at different viewing positions, so as to ensure that the projection screen has high brightness uniformity and high gain.
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Patent Agency Ranking
公开(公告)号：US20210341827A1
公开(公告)日：2021-11-04
申请号：US17280784
申请日：2019-08-14
Applicant: APPOTRONICS CORPORATION LIMITED
IPC: G03B21/602 , G02B5/02 , G02B5/00
Abstract: A projection screen and a projection system using the projection screen. The projection screen includes a microstructure layer and a light absorbing layer sequentially stacked from the side where a projected light is introduced. The microstructure layer includes multiple microstructure units. Each microstructure unit includes one reflective surface and one lens surface opposite the reflective surface; moreover, the reflective surface is provided at a position matching the focus of the lens surface. The projection screen and the projection system can resist ambient light and have a high gain and a high contrast.
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公开(公告)号：US20230161239A1
公开(公告)日：2023-05-25
申请号：US17413372
申请日：2019-11-18
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Hongxiu ZHANG , Wei SUN , Kejian CUI , Yi LI
Abstract: A method for manufacturing a projection screen and a projection screen are provided. The method includes: preparing a substrate; under a first preparation condition, forming a reflective layer by vacuum plating above the substrate; and under a second preparation condition, forming a diffusion layer by the vacuum plating on the reflective layer. The second preparation condition is different from the first preparation condition, and a sputtering power in the second preparation condition is higher than a sputtering power in the first preparation condition.
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公开(公告)号：US20220269159A1
公开(公告)日：2022-08-25
申请号：US17735685
申请日：2022-05-03
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Lin WANG , Wei SUN , Xiaofeng TANG , Fei HU , Yi LI
IPC: G03B21/602 , G02B5/09 , G02B27/18 , G02B1/04
Abstract: The present application provides a projection screen and a projection system. The projection screen includes an optical structure layer and a reflective layer, where the optical structure layer includes a plurality of microstructure units; each of the plurality of microstructure units include a first sidewall and second sidewalls; the reflective layer covers at least part of the first sidewall to form a first working surface, and the reflective layer covers at least part of the second sidewalls to form second working surfaces, respectively; the first working surface deflects an input image beam, and at least part of the input image beam is transmitted to viewer's field and the second working surfaces; and the second working surfaces deflect an input image beam came from the first working surface, and the input image beam came from the first working surface is transmitted to the viewer's field. The present application improves the brightness evenness of the projection screen.
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公开(公告)号：US20220268975A1
公开(公告)日：2022-08-25
申请号：US17597394
申请日：2020-06-28
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Lin WANG , Xiaofeng TANG , Wei SUN , Yi LI
Abstract: A projection screen with a design in which the apexes of multiple triangular pyramidal units of the projection screen in an array arrangement change gradually according to a predetermined relation, an image light shone from a projector is reflected by a microstructure layer having the triangular pyramidal units and then converged in a range centered around the human eyes, so as to reduce the degree of difference in brightness at different viewing positions, thus ensuring that the projection screen is provided with excellent uniformity and high gain.
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公开(公告)号：US20210389658A1
公开(公告)日：2021-12-16
申请号：US17291261
申请日：2019-09-26
Applicant: APPOTRONICS CORPORATION LIMITED
Abstract: A projection screen and a projection system. The projection screen includes a reflection layer and a light absorption layer for absorbing light which are sequentially arranged from an incident side of projection light; the reflection layer comprises multiple microstructure units; each microstructure unit comprises a first plane and a second plane which are opposite to each other at an angle in a first direction as well as a third plane and a fourth plane which are opposite to each other at an angle in a second direction.
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