公开(公告)号：US20240319426A1

公开(公告)日：2024-09-26

申请号：US18609764

申请日：2024-03-19

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Wenbin BAI ,  Ziyang ZHANG ,  Hsin-Yi HU

IPC: G02B5/30 ,  G02B1/08 ,  G02B5/26

CPC classification number: G02B5/3083 ,  G02B1/08 ,  G02B5/26

Abstract: An optical structure and a display device are provided. The optical structure includes a lens, a transflective film, a phase retardation film and a reflective polarizing film. The lens includes a first surface and a second surface which are non-planar surfaces; the transflective film is located at a side of the first surface away from the second surface; the phase retardation film and the reflective polarizing film are located between the phase retardation film and the second surface. The optical structure further includes a phase compensation structure located between the transflective film and the second surface. The phase compensation structure includes first light-transmitting layers and second light-transmitting layers which are alternately arranged and equal in number, a refractive index of the first light-transmitting layer is greater than that of the second light-transmitting layer; and the first light-transmitting layer is attached with the phase retardation film.

公开(公告)号：US20250052984A1

公开(公告)日：2025-02-13

申请号：US18797283

申请日：2024-08-07

Applicant: Beijing Zitiao Network Technology Co., Ltd.

Inventor： Ling FU ,  Xin LI ,  Hsin-Yi HU ,  Jiangsheng YANG

IPC: G02B17/08

Abstract: An optical system and a display apparatus are provided. The optical system includes: a lens component, a transflective film, a reflective polarization layer, and a phase retardation film. The lens component includes at least two lenses including a first surface, a second surface, a third surface and a fourth surface arranged sequentially; the transflective film is on a side of the first surface away from the second surface; the reflective polarization layer is between the second surface and the third surface; absolute values of curvature radii of the first surface and the second surface are both less than that of the fourth surface; a ratio of the curvature radius of the first surface to that of the second surface is 0.5 to 1.25; and an absolute value ratio of a conic constant of the first surface to that of the second surface is no greater than 0.4.