公开(公告)号：US20240034926A1

公开(公告)日：2024-02-01

申请号：US18038688

申请日：2021-11-24

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takuya KATO ,  Toru INATOME ,  Yuta HIGASHINO ,  Yusuke ODA ,  Yoshinori KIMOTO

IPC: C09K11/02 ,  C09K11/56

CPC classification number: C09K11/02 ,  C09K11/567

Abstract: A color conversion particle includes a core; and a shell that contains the core and absorbs excitation light, and emits light at the core or at an interface between the core and the shell upon receiving the irradiated excitation light. The shell is composed of a chalcogenide perovskite, and the core and the shell have band alignment that induces a Stokes shift.

公开(公告)号：US20240002720A1

公开(公告)日：2024-01-04

申请号：US18038691

申请日：2021-11-24

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Takuya KATO ,  Toru INATOME ,  Yuta HIGASHINO ,  Yusuke ODA ,  Yoshinori KIMOTO

IPC: C09K11/67

CPC classification number: C09K11/673

Abstract: A color conversion particle includes a core; and a shell that contains the core and absorbs excitation light, and emits light at the core or at an interface between the core and the shell upon receiving the irradiated excitation light. The core is composed of a chalcogenide perovskite, and the core and the shell have band alignment that induces a Stokes shift.

公开(公告)号：US20240306417A1

公开(公告)日：2024-09-12

申请号：US18568578

申请日：2022-06-09

Applicant: IDEMITSU KOSAN CO.,LTD.

Inventor： Yukitoshi JINDE ,  Yuta HIGASHINO ,  Hisato MATSUMOTO ,  Takushi SHIOMI

IPC: H10K50/18 ,  H10K50/15 ,  H10K59/35 ,  H10K85/40 ,  H10K85/60 ,  H10K101/20 ,  H10K102/00

CPC classification number: H10K50/181 ,  H10K50/15 ,  H10K59/35 ,  H10K85/40 ,  H10K85/623 ,  H10K85/633 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/6576 ,  H10K85/658 ,  H10K2101/20 ,  H10K2102/351

Abstract: An organic electroluminescence device includes: an anode; a cathode; an emitting layer disposed between the anode and the cathode; and a first layer disposed between the anode and the emitting layer, in which the emitting layer contains a delayed fluorescent compound, the first layer contains a first compound, an ionization potential of the first compound Ip(HT1) satisfies a numerical formula (Numerical Formula 1), a hole mobility of the first compound μh(HT1) satisfies a numerical formula (Numerical Formula 2), and the first layer has a film thickness D1 of 15 nm or more,








Ip
⁡
(

HT
⁢
1

)

≥

5.7

eV







(

Numerical
⁢

Formula
⁢

1

)














μ
⁢

h
⁡
(

H
⁢
T
⁢
1

)


≥

1
×
1
⁢

0

-
5


⁢


cm
2

/

Vs
.







(

Numerical
⁢

Formula
⁢

2

)

公开(公告)号：US20240188438A1

公开(公告)日：2024-06-06

申请号：US18550880

申请日：2022-03-17

Applicant: IDEMITSU KOSAN CO.,LTD. ,  TORAY INDUSTRIES, INC.

Inventor： Takushi SHIOMI ,  Hisato MATSUMOTO ,  Yukitoshi JINDE ,  Yuta HIGASHINO ,  Toshinari OGIWARA ,  Hidetaka HOSHINO ,  Kazumasa NAGAO

IPC: H10K85/60 ,  C07D491/048 ,  C07D495/04 ,  C09K11/06 ,  H10K50/11

CPC classification number: H10K85/6574 ,  C07D491/048 ,  C07D495/04 ,  C09K11/06 ,  H10K85/657 ,  C09K2211/1018 ,  H10K50/11 ,  H10K85/6576

Abstract: An organic electroluminescence device may include an anode, a cathode, and an emitting layer provided between the anode and the cathode, in which the emitting layer contains a delayed fluorescent compound M2 and a compound M3 of formula (1)




wherein A is a group of formula (11A), (11B)) (11C), (11D), (11E), and/or (11F)




and Y1 is O or S. The compound M3 and the compound M2 may be different in structure. A singlet energy S1(M3) of the compound M3 and singlet energy S1(M2) of the compound M2 satisfy an inequality of numerical formula (I):


S1(M3)>S1(M2)  (I)