Compound for organic electronic element, organic electronic element using same and electronic device therefor

Patent metadata

Field	Value
Publication number	US-11882763-B2
Application number	US-201716304379-A
Country	US
Kind code	B2
Filing date	May 24, 2017
Priority date	May 26, 2016
Publication date	Jan 23, 2024
Grant date	Jan 23, 2024

Abstract

Provided are an organic electronic element and an electronic device therefor, the organic electronic element having a mixture of a compound according to the present invention used as a material therefor, thereby enabling the achievement of high light-emitting efficiency and low driving voltage of the organic electronic element, and enabling the life of the element to be greatly extended.

First claim

What is claimed is:

1. An organic electric element comprising a first electrode, a second electrode, and an organic material layer disposed between the first electrode and the second electrode,
wherein the organic material layer comprises a hole injection layer, a hole transport layer, an emitting auxiliary layer, an emitting layer, an electron transport layer, and electron injection layer,
wherein the emitting auxiliary layer is located between the emitting layer and the hole transport layer, and the hole injection layer is located between the hole transport layer and the first electrode, and
wherein the emitting auxiliary layer comprises a compound represented by any of Formulas (2) to (7):

wherein:
1) X and Y are each O or S,
2) R 1 , R 2 and R 3 are each independently selected from the group consisting of hydrogen; deuterium; a C 6 -C 24 aryl group;
3) R 4 , R 5 , R 6 and R 7 are each independently selected from the group consisting of hydrogen; deuterium; a C 6 -C 24 aryl group;
4) wherein any one of two adjacent R 1 and R 2 , R 2 and R 3 , R 3 and R 4 , R 5 and R 6 , R 6 and R 7 may be bonded to form an aromatic or heteroaromatic ring,
5) Ar 1 , Ar 2 , Ar 3 and Ar 4 are each independently selected from the group consisting of a C 6 -C 24 aryl group; a fluorenyl group; a C 2 -C 24 heterocyclic group including at least one hetero atom of O, N, S, Si or P;
6) L a and L b are each independently single bond; a C 6 -C 24 arylene group;
7) n is an integer of 0 to 3, and m is an integer of 0 to 4,
8) R 8 and R 9 are each independently selected from the group consisting of hydrogen; deuterium; a C 6 -C 24 aryl group; or in case n and m are 2 or more, and R 8 and R 9 are each in plural being the same or different, and a plurality of R 8 or a plurality of R 9 combine to each other to form an aromatic ring,
wherein, the aryl group, fluorenyl group, arylene group, heterocyclic group, alkyl group may be substituted with one or more substituents selected from the group consisting of deuterium; halogen; a silane group substituted or unsubstituted with C 1 -C 20 alkyl group or C 6 -C 20 aryl group; C 1 -C 20 alkyl group; C 6 -C 20 aryl group; C 6 -C 20 aryl group substituted with deuterium.

2. The organic electric element according to claim 1 wherein at least one of L a and L b in Formulas (2) to (7) is a single bond.

3. The organic electric element according to claim 1 wherein the compound represented by Formulas (2) to (7) is any one of Compounds P-1 to P-90:

4. The organic electric element according to claim 1 , further comprising a light efficiency enhancing layer formed on one side of the first electrode that is opposite to the side where the organic material layer is located and/or on one side of the second electrode that is opposite to the side where the organic material layer is located.

5. A display device comprising the organic electric element of claim 1 ; and a control part for driving the display device.

6. A display device according to claim 5 , wherein the organic electronic element is an OLED, an organic solar cell, an organic photo conductor (OPC), organic transistor (organic TFT), or an element for monochromic or white illumination.

Assignees

• Duk San Neolux Co Ltd

Inventors

• Mun Soung Yun
• Jang Jae Wan
• Lee Yun Suk
• Park Jong Gwang
• Choi Yeon Hee
• Park Chi Hyun

Classifications

• H10K2101/90

  Multiple hosts in the emissive layer · CPC title

• H10K50/11

  characterised by the electroluminescent [EL] layers · CPC title

• H10K85/40

  Organosilicon compounds, e.g. TIPS pentacene · CPC title

• H10K85/626

  containing more than one polycyclic condensed aromatic rings, e.g. bis-anthracene · CPC title

• H10K85/654

  comprising only nitrogen as heteroatom (H10K85/652 takes precedence) · CPC title