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US 11,158,809 B2Granted
Light absorber and organic electroluminescence device including the same
AssigneeSamsung Display Co., Ltd.
InventorsSanghyun Han, Wonmin Yun, Jongwoo Kim, Jangyeol Baek, Eunjae Jeong, Yohan Kim, Yisu Kim, Youngkook Kim, Seokhwan Hwang
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Abstract
Provided is an organic electroluminescence device provided with a light absorber represented by Formula 1 below, and a light absorbing layer including the same. In Formula 1, Ar is pyrene, chrysene, or anthracene, and Y is a hydrogen atom or a substituent, and X is represented by any one of Formula 2-1 to 2-3 below.
Claims24
A light absorber represented by Formula 1 below:
- X—Ar—Y Formula 1
- wherein in Formula 1,
- Ar is pyrene, chrysene, or anthracene,
- Y is a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted acrylate group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, a substituted or unsubstituted carbonyl group, a substituted or unsubstituted benzophenone group, a substituted or unsubstituted benzoate group, or a substituted or unsubstituted salicylate, and
- X is represented by any one of Formula 2-1 to 2-3 below:
2 more elements
An organic electroluminescence device comprising:
- a first electrode;
- a hole transport region provided on the first electrode;
- a light emitting layer provided on the hole transport region;
- an electron transport region provided on the light emitting layer;
- a second electrode provided on the electron transport region;
- and
- a light absorbing layer provided on at least one of a lower portion of the first electrode or an upper portion of the second electrode,
- wherein the light absorbing layer comprises a light absorber represented by formula 1 below:
- X—Ar—Y Formula 1
- wherein in Formula 1 above,
- Ar is pyrene, chrysene, or anthracene,
- Y is a hydrogen atom, a substituted or unsubstituted alkyl group having 1 to 20 carbon atoms, a substituted or unsubstituted alkenyl group having 2 to 20 carbon atoms, a substituted or unsubstituted alkoxy group having 1 to 20 carbon atoms, a substituted or unsubstituted acrylate group having 1 to 20 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, a substituted or unsubstituted heteroaryl group having 2 to 30 ring-forming carbon atoms, a substituted or unsubstituted carbonyl group, a substituted or unsubstituted benzophenone group, a substituted or unsubstituted benzoate group, or a substituted or unsubstituted salicylate, and
- X is represented by any one of Formula 2-1 to 2-3 below.
10 more elements
An organic electroluminescence device comprising:
- a first electrode;
- a hole transport region provided on the first electrode;
- a light emitting layer provided on the hole transport region;
- an electron transport region provided on the light emitting layer;
- a second electrode provided on the electron transport region;
- and
- a light absorbing layer provided on at least one of a lower portion of the first electrode or an upper portion of the second electrode,
- wherein the light absorbing layer comprises a light absorber including a polycyclic aromatic compound, and the polycyclic aromatic compound is substituted with a substituent including a structure represented by Formula A below:
- wherein in Formula A,
- are each independently a position substituted with the polycyclic aromatic compound or a position substituted with a hydrogen atom or a substituted or unsubstituted aryl group having 6 to 30 ring-forming carbon atoms, and
- wherein the polycyclic aromatic compound comprises pyrene, chrysene, or anthracene.
8 more elements
Dependencies are inferred from the claim text.