公开(公告)号：US12025878B2

公开(公告)日：2024-07-02

申请号：US18195481

申请日：2023-05-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Feng Zhao

IPC: G02F1/1335 ,  G02F1/1347

CPC classification number: G02F1/133536 ,  G02F1/133504 ,  G02F1/1347

Abstract: An article for a display device having an output surface. The article includes a light valve, a reflective polarizer, and a diffusing layer. The light valve is configured to be disposed on the output surface of the display device. The light valve is operable in a pass mode and a block mode. The reflective polarizer is disposed on the light valve opposite to the display device. The reflective polarizer is configured to substantially transmit light having a first polarization state and substantially reflect light having an orthogonal second polarization state. The diffusing layer is disposed on the reflective polarizer opposite to the light valve.

公开(公告)号：US11686971B2

公开(公告)日：2023-06-27

申请号：US17758754

申请日：2020-01-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Feng Zhao

IPC: G02F1/1335 ,  G02F1/1347

CPC classification number: G02F1/133536 ,  G02F1/1347 ,  G02F1/133504

Abstract: An article for a display device having an output surface. The article includes a light valve, a reflective polarizer, and a diffusing layer. The light valve is configured to be disposed on the output surface of the display device. The light valve is operable in a pass mode and a block mode. The reflective polarizer is disposed on the light valve opposite to the display device. The reflective polarizer is configured to substantially transmit light having a first polarization state and substantially reflect light having an orthogonal second polarization state. The diffusing layer is disposed on the reflective polarizer opposite to the light valve.

公开(公告)号：US20230045348A1

公开(公告)日：2023-02-09

申请号：US17758754

申请日：2020-01-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Feng Zhao

IPC: G02F1/1335 ,  G02F1/1347

Abstract: An article for a display device having an output surface. The article includes a light valve, a reflective polarizer, and a diffusing layer. The light valve is configured to be disposed on the output surface of the display device. The light valve is operable in a pass mode and a block mode. The reflective polarizer is disposed on the light valve opposite to the display device. The reflective polarizer is configured to substantially transmit light having a first polarization state and substantially reflect light having an orthogonal second polarization state. The diffusing layer is disposed on the reflective polarizer opposite to the light valve.

公开(公告)号：US10330851B2

公开(公告)日：2019-06-25

申请号：US15505397

申请日：2015-08-19

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Joshua D. Tibbits ,  Yu Yang ,  JianGang Su ,  Feng Zhao ,  Wenlong Yang ,  Shu-Ching Fan

IPC: F21V8/00 ,  G02F1/1335

Abstract: Methods for improving color uniformity across an LCD backlight unit having a viewable area, a downconversion film element and blue LEDS comprise increasing blue light absorption while reflecting red and green light in at least one edge of the viewable area.

公开(公告)号：US12153245B2

公开(公告)日：2024-11-26

申请号：US18025988

申请日：2020-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zhe Hu ,  Mingxing Wang ,  Tuhua Chen ,  Zhiping Liu ,  Yang Liu ,  Xiulong Men ,  Hailiang Hou ,  Huijie Xie ,  Yifei Zheng ,  Feng Zhao ,  Jingfei Chen ,  Bharat R. Acharya ,  Quinn D. Sanford ,  Matthew S. Cole ,  Tao Zhang

IPC: G06V40/13 ,  F21V8/00 ,  G02B27/14 ,  G02F1/1333

Abstract: An optical construction (100) includes a lightguide (102), a transmissive reflector (112), and an optical sensor (114). The lightguide (102) includes a first major surface (104) and a second major surface (106) opposite to the first major surface (104). The first major surface (104) includes a first portion (108) and an adjoining second portion (110). The transmissive reflector (112) is disposed adjacent to the first major surface (104) of the lightguide (102). The optical sensor (114) is disposed adjacent to the transmissive reflector (112) opposite to the lightguide (102). The optical sensor (114) is aligned with the first portion (108) of the first major surface (104) of the lightguide (102), such that the optical sensor (114) receives at least a portion of light passing through the first portion (108) of the first major surface (104) and transmitted by the transmissive reflector (112). The optical construction (100) further includes an enclosed gap (116) disposed between the first portion (108) of the first major surface (104) of the lightguide (102) and the transmissive reflector (112).

公开(公告)号：US20230367057A1

公开(公告)日：2023-11-16

申请号：US18025988

申请日：2020-09-18

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Zhe Hu ,  Mingxing Wang ,  Tuhua Chen ,  Zhiping Liu ,  Yang Liu ,  Xiulong Men ,  Hailiang Hou ,  Huijie Xie ,  Yifei Zheng ,  Feng Zhao ,  Jingfei Chen ,  Bharat R. Acharya ,  Quinn D. Sanford ,  Matthew S. Cole ,  Tao Zhang

IPC: F21V8/00

CPC classification number: G02B6/0055 ,  G02B27/14

Abstract: An optical construction (100) includes a lightguide (102), a transmissive reflector (112), and an optical sensor (114). The lightguide (102) includes a first major surface (104) and a second major surface (106) opposite to the first major surface (104). The first major surface (104) includes a first portion (108) and an adjoining second portion (110). The transmissive reflector (112) is disposed adjacent to the first major surface (104) of the lightguide (102). The optical sensor (114) is disposed adjacent to the transmissive reflector (112) opposite to the lightguide (102). The optical sensor (114) is aligned with the first portion (108) of the first major surface (104) of the lightguide (102), such that the optical sensor (114) receives at least a portion of light passing through the first portion (108) of the first major surface (104) and transmitted by the transmissive reflector (112). The optical construction (100) further includes an enclosed gap (116) disposed between the first portion (108) of the first major surface (104) of the lightguide (102) and the transmissive reflector (112).

公开(公告)号：US20230273476A1

公开(公告)日：2023-08-31

申请号：US18195481

申请日：2023-05-10

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Feng Zhao

IPC: G02F1/1335 ,  G02F1/1347

CPC classification number: G02F1/133536 ,  G02F1/133504 ,  G02F1/1347

Abstract: An article for a display device having an output surface. The article includes a light valve, a reflective polarizer, and a diffusing layer. The light valve is configured to be disposed on the output surface of the display device. The light valve is operable in a pass mode and a block mode. The reflective polarizer is disposed on the light valve opposite to the display device. The reflective polarizer is configured to substantially transmit light having a first polarization state and substantially reflect light having an orthogonal second polarization state. The diffusing layer is disposed on the reflective polarizer opposite to the light valve.