Julia Barnes Brown

US Patent:

6803720, Oct 12, 2004

Filed:

Dec 15, 2000

Appl. No.:

09/738429

Inventors:

Raymond C. Kwong - Plainsboro NJ
Michael G. Hack - Pennington NJ
Theodore Zhou - Princeton NJ
Julia J. Brown - Princeton NJ
Tan D. Ngo - Levittown PA

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H05B 3300

US Classification:

313504, 313506

Abstract:

A highly stable and efficient organic light emitting device with a phosphorescent-doped mixed layer architecture comprises an anode layer; hole injecting layer over the anode layer; a mixed layer over the hole injecting layer, the mixed layer comprising an organic small molecule hole transporting material, an organic small molecule electron transporting material and a phosphorescent dopant; and a cathode layer over the mixed layer. An electron transporting layer may be present between the mixed layer and the cathode layer and a hole transporting layer may be present between the hole injecting layer and the mixed layer.

US Patent:

6835950, Dec 28, 2004

Filed:

Apr 12, 2002

Appl. No.:

10/122969

Inventors:

Julia J. Brown - Yardley PA
Jeffrey Alan Silvernail - Yardley PA
Michael Stuart Weaver - Princeton NJ
Anna Chwang - Princeton NJ

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 5100

US Classification:

257 40, 257 13, 257 79, 257642, 257753, 257759, 257918, 438 22, 438 82, 438 99

Abstract:

An organic electronic device structure, according to a first aspect of the invention, includes: (a) a substrate layer; (b) an organic electronic region disposed over the substrate layer; (c) a pressure sensitive adhesive layer disposed over the organic electronic device; and (d) a barrier layer disposed over the adhesive layer. According to a second aspect of the present invention, an organic electronic device structure includes: (a) a substrate layer; (b) an organic electronic region disposed over the substrate layer; (c) a barrier layer disposed over the organic electronic region; (d) a pressure sensitive adhesive layer disposed over the substrate layer and over the barrier layer; and (e) an additional layer disposed over the adhesive layer. In many preferred embodiments, the organic electronic device region is an OLED region.

US Patent:

6897474, May 24, 2005

Filed:

Apr 4, 2003

Appl. No.:

10/407820

Inventors:

Julia J. Brown - Yardley PA, US
Michael Stuart Weaver - Princeton NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L035/24

US Classification:

257 40

Abstract:

An organic electronic device structure and a method of making the same. According to a first aspect of the invention, an organic electronic device structure is provided, which comprises: (a) a substrate layer; (b) an organic electronic region disposed over the substrate layer; (c) an adhesive layer disposed over the organic electronic device; and (d) a barrier layer disposed over the adhesive layer. According to a second aspect of the present invention, an organic electronic device structure is provided, which comprises: (a) a substrate layer; (b) an organic electronic region disposed over the substrate layer; (c) a barrier layer disposed over the organic electronic region; (d) an adhesive layer disposed over the substrate layer and over the barrier layer; and (e) an additional layer disposed over the adhesive layer. According to yet another aspect of the invention, a method for providing an organic electronic device structure of provided. The method comprises: (1) providing a first region comprising (a) a substrate layer and (b) an organic electronic region provided over the substrate layer; (2) providing a second region comprising at least one additional layer; and (3) adhering the first region to the second region using a pressure sensitive adhesive layer.

US Patent:

7151339, Dec 19, 2006

Filed:

Jan 30, 2004

Appl. No.:

10/769599

Inventors:

Vadim Adamovich - Lawrenceville NJ, US
Michael Weaver - Princeton NJ, US
Julia Brown - Yardley PA, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H05B 33/00

US Classification:

313504, 313506, 428690

Abstract:

The present invention relates to organic light emitting devices (OLEDs), and more specifically to an OLED device structure that provides improved performance characteristics, such as increased luminous efficiency and improved lifetime. The OLEDs of present invention comprise an emissive layer in which an emissive dopant is non-uniformly doped into a host material.

US Patent:

7683536, Mar 23, 2010

Filed:

Nov 16, 2005

Appl. No.:

11/274091

Inventors:

Stephen Forrest - Princeton NJ, US
Julia J. Brown - Yardley PA, US
Mark E. Thompson - Anaheim Hills CA, US

Assignee:

The Trustees of Princeton University - Princeton NJ
Universal Display Corporation - Ewing NJ
The University of Southern California - Los Angeles CA

International Classification:

H05B 33/00
H01L 51/50

US Classification:

313506, 313917

Abstract:

The present invention relates to OLEDs utilizing direct injection to the triplet state. The present invention also relates to OLEDs utilizing resonant injection and/or stepped energy levels.

US Patent:

7745986, Jun 29, 2010

Filed:

Feb 9, 2004

Appl. No.:

10/582643

Inventors:

Hironori Ito - Nagoya, JP
Naotaka Koide - Nagoya, JP
Michael Hack - Lambertville NJ, US
Julia Brown - Yardley PA, US

Assignee:

Universal Display Corporation - Ewing NJ
Toyota Industries Corporation - Aichi

International Classification:

H01J 1/62

US Classification:

313504, 313512

Abstract:

Disclosed is a conventional organic light emitting diode (OLED) having one reflective electrode in combination with at least one transparent OLED in stacked configuration functioning as backlighting in a transflective display apparatus such as a liquid crystal display (LCD). Preferably, at least two transparent OLEDs are arranged in a stacked configuration with one conventional OLED, each of the three OLEDs emitting light of a different bandwidth. The reflective electrode located behind the backlight also serves as a reflecting plate for the display. This arrangement enhances reflectivity and permits color sequencing in the transmissive mode, allowing all the components of a full color display (i. e. red, green, blue) to emit through the same pixel without the need for a color filter.

US Patent:

8564001, Oct 22, 2013

Filed:

May 18, 2011

Appl. No.:

13/110298

Inventors:

Michael Hack - Princeton NJ, US
Julia J. Brown - Yardley PA, US
Peter Levermore - Lambertville NJ, US
Michael S. Weaver - Princeton NJ, US

Assignee:

Universal Display Corporation - Ewing NJ

International Classification:

H01L 33/50
H01L 21/00

US Classification:

257 98, 257102, 257103, 257 40, 257E33061, 438 82, 438 99, 438 22, 438 25

Abstract:

A first device that may include one or more organic light emitting devices. At least 65 percent of the photons emitted by the organic light emitting devices are emitted from an organic phosphorescent emitting material. An outcoupling enhancer is optically coupled to each organic light emitting device. In one embodiment, the light panel is not attached to a heat management structure. In one embodiment, the light panel is capable of exhibiting less than a 10 degree C. rise in junction temperature when operated at a luminous emittance of 9,000 lm/mwithout the use of heat management structures, regardless of whether the light panel is actually attached to a heat management structure or not. The light panel may be attached to a heat management structure. The light panel may be not attached to a heat management structure.

US Patent:

8592253, Nov 26, 2013

Filed:

May 5, 2009

Appl. No.:

12/990860

Inventors:

Prashant Mandlik - Princeton NJ, US
Sigurd Wagner - Princeton NJ, US
Jeffrey A. Silvernail - Yardley PA, US
Ruiqing Ma - Morristown NJ, US
Julia J. Brown - Yardley PA, US
Lin Han - Princeton NJ, US

Assignee:

The Trustees of Princeton University - Princeton NJ
Universal Display Corporation - Ewing NJ

International Classification:

H01L 21/44
H01L 21/48

US Classification:

438106, 438126

Abstract:

A method for protecting an electronic device comprising an organic device body. The method involves the use of a hybrid layer deposited by chemical vapor deposition. The hybrid layer comprises a mixture of a polymeric material and a non-polymeric material, wherein the weight ratio of polymeric to non-polymeric material is in the range of 95:5 to 5:95, and wherein the polymeric material and the non-polymeric material are created from the same source of precursor material. Also disclosed are techniques for impeding the lateral diffusion of environmental contaminants.