Lichang Zeng

US Patent:

8580399, Nov 12, 2013

Filed:

Apr 8, 2011

Appl. No.:

13/082914

Inventors:

Alexey Dyatkin - Ambler PA, US
Lichang Zeng - Lawrenceville NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 51/54

US Classification:

428690, 428917, 313504, 313505, 313506, 257 40, 257E5105, 257E51026, 257E51032, 546 18, 546 79, 546 81, 546101, 548440

Abstract:

Novel compounds containing substituted oligoazacarbazole chains are provided. These compounds are useful in organic light emitting devices, in particular as hosts in the emissive layer of such devices.

US Patent:

20070111027, May 17, 2007

Filed:

Jul 28, 2006

Appl. No.:

11/494854

Inventors:

Shaw Chen - Rochester NY, US
Andrew Chen - Rochester NY, US
Jason Wallace - Rochester NY, US
Lichang Zeng - Rochester NY, US

International Classification:

H01L 51/54
C09K 11/06

US Classification:

428690000, 428917000, 257E51049, 257040000, 313504000, 564433000, 564434000, 544180000, 548143000, 548262200

Abstract:

The subject matter disclosed herein generally relates to organic light-emitting materials and methods for their preparation and use. Also, devices involve organic light emitting materials are disclosed.

US Patent:

20100184942, Jul 22, 2010

Filed:

Jan 22, 2010

Appl. No.:

12/692462

Inventors:

Shaw H. Chen - Rochester NY, US
Lichang Zeng - Rochester NY, US
Thomas Yung-Hsin Lee - Rochester NY, US

International Classification:

C08G 73/06
C07D 209/82
C07D 307/91
C07D 251/12
C07F 5/02
C07D 405/10

US Classification:

528423, 548440, 549460, 544180, 548405, 544215

Abstract:

Compounds (including polymers) for use in hybrid host materials which can be used in electroluminescent devices. The compounds comprise at least one electron-transporting moiety and at least one hole-transporting moiety which are joined by a flexible linker. Hybrid host materials comprising the compounds exhibit stability against phase separation, elevated glass transition temperature, morphological stability against crystallization, and isolation of the electron transporting moiety and hole transporting moiety π-systems.

US Patent:

20120298966, Nov 29, 2012

Filed:

May 25, 2011

Appl. No.:

13/067345

Inventors:

Lichang Zeng - Lawrenceville NJ, US
Alexey B. Dyatkin - Ambler PA, US
Gregg Kottas - Ewing NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 51/54
C07F 7/10

US Classification:

257 40, 548406, 257E51018

Abstract:

Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.

US Patent:

20130119353, May 16, 2013

Filed:

Nov 14, 2011

Appl. No.:

13/295660

Inventors:

Lichang Zeng - Lawrenceville NJ, US
Alexey Dyatkin - Ambler PA, US
Gregg Kottas - Ewing NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 51/54
C07F 7/08

US Classification:

257 40, 549214, 548406, 546 14, 257E51026

Abstract:

Novel aryl silicon and aryl germanium host materials, and in particular host materials containing triphenylene and pyrene fragments, are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.

US Patent:

20130293094, Nov 7, 2013

Filed:

May 4, 2012

Appl. No.:

13/464122

Inventors:

Alexey Dyatkin - Ambler PA, US
Lichang Zeng - Lawrenceville NJ, US
Chuanjun Xia - Lawrenceville NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

C07F 7/10
H05B 33/14
C07F 7/08
H05B 33/20

US Classification:

313504, 313498, 548406, 549 4, 549214, 546 14

Abstract:

Novel asymmetric host compounds containing an electron-transport moiety, a hole-transport moiety, an aromatic spacer, and a triaryl silane group are provided. These compounds are useful materials that can be incorporated into OLED devices.

US Patent:

8409729, Apr 2, 2013

Filed:

Jul 28, 2011

Appl. No.:

13/193173

Inventors:

Lichang Zeng - Ewing NJ, US
Alexey B. Dyatkin - Ewing NJ, US
Gregg Kottas - Ewing NJ, US
Chuanjun Xia - Ewing NJ, US
David Z. Li - Ewing NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 51/54

US Classification:

428690, 428917, 546 18, 546 79, 546 81, 546101, 257 40, 257E5105, 257E51026, 257E51032, 313504, 313505, 313506, 548440

Abstract:

Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED.

US Patent:

20220359835, Nov 10, 2022

Filed:

May 14, 2021

Appl. No.:

17/320422

Inventors:

- Ewing NJ, US
Lichang ZENG - Lawrenceville NJ, US
Zhiqiang JI - Chalfont PA, US
Alexey Borisovich DYATKIN - Ambler PA, US
Walter YEAGER - Yardley PA, US
Edward BARRON - Hamilton NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 51/00
C07F 15/00
C09K 11/06

Abstract:

A compound having the formula:Formula I is disclosed. The compound is useful as emitters in OLEDs.