公开(公告)号：US20210041747A1

公开(公告)日：2021-02-11

申请号：US17080627

申请日：2020-10-26

申请人： Samsung Display Co., Ltd. ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Minki NAM ,  Kyoungwon PARK ,  Baekhee LEE ,  Youngmin KIM ,  Haeil PARK ,  Jaikyeong KIM ,  Heesuk KIM ,  Wanki BAE ,  Dohchang LEE ,  Byeongguk JEONG

IPC分类号： G02F1/13357 ,  G02F1/1335 ,  H01L51/00 ,  H01L27/32 ,  B82Y20/00

摘要： A display device includes: a display substrate; a light amount control layer on the display substrate; a first polarizer on the light amount control layer; and a color conversion layer on the first polarizer. The color conversion layer includes a phosphor, the phosphor includes a quantum dot, the quantum dot including: a core; a first shell surrounding the core; and a second shell surrounding the first shell, and the quantum dot has a diameter ranging from about 2 nm to about 32 nm.

公开(公告)号：US20190229153A1

公开(公告)日：2019-07-25

申请号：US16186404

申请日：2018-11-09

申请人： Samsung Display Co., Ltd. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Kyoungwon PARK ,  Minki NAM ,  Songyi KIM ,  Sungwoon KIM ,  Sungjun KOH ,  Seongwon MO ,  Dohchang LEE

IPC分类号： H01L27/32 ,  C09K11/70 ,  C09K11/88 ,  C09K11/08

摘要： A display device includes semiconductor nanoparticles. An organic light emitting diode (“OLED”) display device includes the semiconductor nanoparticles, a semiconductor particle of the semiconductor nanoparticles including: a core including a compound semiconductor; and a shell surrounding the core. The shell includes a metal oxide (and/or metalloid oxide) having a bandgap of about 3.5 eV or more, and having a sum (ΔECB+ΔEVB) of a conduction band offset (ΔECB) with the compound semiconductor included in the core and a valence band offset (ΔEVB) with the compound semiconductor included in the core of about 3 eV or more.

公开(公告)号：US20180059485A1

公开(公告)日：2018-03-01

申请号：US15690050

申请日：2017-08-29

申请人： SAMSUNG DISPLAY CO., LTD. ,  KOREA INSTITUTE OF SCIENCE AND TECHNOLOGY ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

发明人： Minki NAM ,  Kyoungwon PARK ,  Baekhee LEE ,  Youngmin KIM ,  Haeil PARK ,  Jaikyeong KIM ,  Heesuk KIM ,  Wanki BAE ,  Dohchang LEE ,  Byeongguk JEONG

IPC分类号： G02F1/1335 ,  H01L51/00 ,  H01L27/32

CPC分类号： G02F1/133621 ,  B82Y20/00 ,  G02F1/133528 ,  G02F1/133602 ,  G02F1/133617 ,  G02F2001/133614 ,  G02F2202/36 ,  H01L27/322 ,  H01L51/0097 ,  H01L2251/5338 ,  H01L2251/5369 ,  Y10S977/774 ,  Y10S977/818 ,  Y10S977/824 ,  Y10S977/95 ,  Y10S977/952

摘要： A display device includes: a display substrate; a light amount control layer on the display substrate; a first polarizer on the light amount control layer; and a color conversion layer on the first polarizer. The color conversion layer includes a phosphor, the phosphor includes a quantum dot, the quantum dot including: a core; a first shell surrounding the core; and a second shell surrounding the first shell, and the quantum dot has a diameter ranging from about 2 nm to about 32 nm.