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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：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：US20220017786A1
公开(公告)日：2022-01-20
申请号：US17299758
申请日：2019-11-18
Applicant: APPOTRONICS CORPORATION LIMITED
Inventor： Jie WANG , Lin WANG , Hongxiu ZHANG , Fei HU , Yi LI
Abstract: A screen splicing structure is provided. The screen splicing structure includes a substrate layer, a middle adhesive layer, and a surface layer. The substrate layer includes a first substrate and a second substrate. The second substrate is spliced with the first substrate, and a seam is formed at a splicing place. The surface layer and the middle adhesive layer are stacked. The surface layer covers the seam by bonding the middle adhesive layer and the substrate layer. The peeling strength of the surface layer and the substrate layer is greater than or equal to 1,000 gf/inch. A method for forming the screen splicing structure is also provided.
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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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