公开(公告)号：US11231644B2

公开(公告)日：2022-01-25

申请号：US17036685

申请日：2020-09-29

申请人： HISENSE LASER DISPLAY CO., LTD.

发明人： Wei Xiao ,  Chao Wang ,  Fei Zhao ,  Qiang Zhong ,  Xiaoping Li

IPC分类号： G03B21/60 ,  G03B21/602

摘要： A Fresnel projection screen includes: a Fresnel layer; a first micro-structure layer disposed at a light incident side of the Fresnel layer, the first micro-structure layer including a plurality of micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; and a reflective layer disposed on a side of the Fresnel layer away from the first micro-structure layer.

公开(公告)号：US11635678B2

公开(公告)日：2023-04-25

申请号：US17551812

申请日：2021-12-15

申请人： HISENSE LASER DISPLAY CO., LTD.

发明人： Wei Xiao ,  Chao Wang ,  Fei Zhao ,  Qiang Zhong ,  Xiaoping Li

IPC分类号： G03B21/60 ,  G03B21/602

摘要： A Fresnel projection screen includes: a Fresnel layer; a first micro-structure layer disposed at a light incident side of the Fresnel layer, the first micro-structure layer including a plurality of micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; a second micro-structure layer disposed on a surface of the first micro-structure layer, the second micro-structure layer including a plurality of second micro-structures that are configured to diffusely reflect a portion of light incident thereon and refract another portion of the light; and a reflective layer disposed on a side of the Fresnel layer away from the first micro-structure layer.

公开(公告)号：US11442354B2

公开(公告)日：2022-09-13

申请号：US17182701

申请日：2021-02-23

申请人： HISENSE LASER DISPLAY CO., LTD.

发明人： Jianjun Li ,  Changming Yang ,  Qiang Zhong ,  Yun Zhao

IPC分类号： G03B21/60 ,  G03B21/56 ,  G03B21/64

摘要： A projection screen includes a screen board, a connecting cloth, a screen frame, and at least one connecting member. The screen board has a first surface and a second surface opposite, the screen board has a light receiving region and an edge region surrounding the light receiving region. At least one edge of the connecting cloth protrudes from a corresponding edge of the screen board, and at least a portion of the second surface of the screen board located in the edge region is connected to the connecting cloth. The screen frame has a hollow structure, an orthographic projection of the screen board on a plane parallel to the first surface is located within an outer border of an orthographic projection of the screen frame on the plane. The at least one connecting member connects at least one edge of the connecting cloth to the screen frame.