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

Inventor： Fei HU ,  Wei SUN ,  Lin WANG ,  Yi LI

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.

公开(公告)号：US20220326516A1

公开(公告)日：2022-10-13

申请号：US17641043

申请日：2020-08-31

Applicant: APPOTRONICS CORPORATION LIMITED

Inventor： Lin WANG ,  Hongxiu ZHANG ,  Xiaofeng TANG ,  Fei HU ,  Xin YU ,  Yi LI

IPC: G02B27/01 ,  G02B17/08

Abstract: An optical film and an optical imaging system are provided. The optical film includes a first lens layer, a first deflection layer, a reflection layer, a second deflection layer, and a second lens layer. The second lens layer is attached to a windshield. The reflection layer is configured to reflect an image light beam to form a first reflected light beam and the first lens layer and the first deflection layer are configured to amplify and/or deflect the first reflected light beam, to guide the first reflected light beam to a field-of-view direction. The second lens layer and the second deflection layer are configured to amplify and/or deflect a second reflected light beam, to guide the second reflected light beam to a first direction. The second reflected light beam is formed by that the windshield reflects the image light beam. The field-of-view direction is different from the first direction.

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.

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

IPC: C09J7/25 ,  G03B21/56 ,  C09J7/24 ,  C09J5/00

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.

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

Inventor： Lin WANG ,  Wei SUN ,  Jie WANG ,  Fei HU ,  Yi LI

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.