公开(公告)号：US20190079218A1

公开(公告)日：2019-03-14

申请号：US16122012

申请日：2018-09-05

申请人： Samsung Electronics Co., Ltd. ,  Seoul National University R&DB Foundation

发明人： Young-yoon LEE ,  Jonghyun KIM ,  Byoungho LEE ,  Jong-Young HONG ,  Seokil MOON ,  Chanhyung YOO

IPC分类号： G02B5/02 ,  G02B3/00 ,  G02B27/28

CPC分类号： G02B5/0205 ,  G02B3/005 ,  G02B5/0215 ,  G02B5/3083 ,  G02B27/01 ,  G02B27/286

摘要： A transparent panel is provided. The transparent panel includes a polarization plate, a transparent diffusion plate which is disposed on one side of the polarization plate and is configured to transmit light incident from a side of the polarization plate and to reflect and diffuse a light incident from an opposite side of the polarization plate, a ¼ wavelength plate which is disposed on one side of the transparent diffusion plate and is configured to convert a polarization direction of an incident light, and a lens part which is disposed on one side of the ¼ wavelength plate. The lens part includes a lens array comprising a birefringent material having different refractive indexes according to a polarization direction of an incident light, and a refractive index alignment member configured to transmit or refract the light according to a polarization direction of a light that penetrates the lens array.

公开(公告)号：US20220390749A1

公开(公告)日：2022-12-08

申请号：US17879469

申请日：2022-08-02

申请人： SAMSUNG ELECTRONICS CO., LTD. ,  SEOUL NATIONAL UNIVERSITY R&DB FOUNDATION

发明人： Jeonggeun YUN ,  Byoungho LEE ,  Kiseung BANG ,  Chanhyung YOO ,  Kyookeun LEE ,  Minseok CHAE

IPC分类号： G02B27/01 ,  F21V8/00

摘要： Provided is a waveguide-type display device including a waveguide, an input coupler provided on the waveguide and configured to transmit an image to travel into the waveguide, an output coupler provided on the waveguide and configured to output the image traveling in the waveguide to an outside of the waveguide, and a field-of-view (FOV) expander configured to output an image having an expanded FOV by deflecting and outputting the image output from the output coupler in a certain direction based on polarization characteristics of the image.

公开(公告)号：US20230305308A1

公开(公告)日：2023-09-28

申请号：US18327891

申请日：2023-06-02

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Kyongtae PARK ,  Nari KIM ,  Chanhyung YOO ,  Hoyoung JUNG

IPC分类号： G02B27/01

CPC分类号： G02B27/0172 ,  G02B2027/0178 ,  G02B2027/0118 ,  G02B2027/0112

摘要： An electronic device includes a power supply; a display including light-emitting diodes (“LED”s), a projection lens, and a waveguide arranged in a way such that light emitted from the LEDs is input to the waveguide through the projection lens, and light-outputting efficiency of the waveguide for a first color is higher than light-outputting efficiency of the waveguide for a second color; a memory; and a processor which determines a first driving power for a first LED which emits light of the first color and a second driving power for a second LED which emits light of the second color based on the light-outputting efficiencies of the waveguide for the first color and the second color, and controls the power supply in a way such that the first and second driving powers are supplied to the first and second LEDs, respectively.