Charles D Macpherson

US Patent:

6992326, Jan 31, 2006

Filed:

Aug 3, 2004

Appl. No.:

10/910496

Inventors:

Charles Douglas MacPherson - Santa Barbara CA, US
Matthew Stainer - Goleta CA, US
Michael Anzlowar - Santa Barbara CA, US
Paul Anthony Sant - Santa Barbara CA, US
Sughosh Venkatesh - Goleta CA, US

Assignee:

DuPont Displays, Inc. - Santa Barbara CA

International Classification:

H01L 35/24

US Classification:

257 40, 257 99, 438 99

Abstract:

An electronic device includes a substrate, a structure having openings, and a first electrode overlying the structure and lying within the openings. From a cross-sectional view, the structure, at the openings, has a negative slope. From a plan view, each opening has a perimeter that may or may not substantially correspond to a perimeter of an organic electronic component. The portions of the first electrode overlying the structure and lying within the openings are connected to each other. In a process for forming the electronic device, an organic active layer may be deposited within the opening, wherein the organic active layer has a liquid composition.

US Patent:

7187123, Mar 6, 2007

Filed:

May 20, 2005

Appl. No.:

11/134168

Inventors:

Charles Douglas MacPherson - Santa Barbara CA, US

Assignee:

DuPont Displays, Inc. - Santa Barbara CA

International Classification:

H01J 1/62

US Classification:

313506, 313504, 257E23179, 257797, 438462, 438401

Abstract:

An electronic device is provided that includes an organic panel, including a platform made of an electrically nonconductive material; a first electrode on the platform; an organic active layer on the first electrode; a second electrode on the organic active layer; and a first alignment structure, in addition, a driver panel is provided and includes a substrate; a driver circuit formed on the substrate; and a second alignment structure for coupling with the first alignment structure to position the organic panel and driver panel in substantial alignment, and to electrically couple the driver circuit to the organic active layer.

US Patent:

7250461, Jul 31, 2007

Filed:

Mar 17, 2004

Appl. No.:

10/803114

Inventors:

Charles Douglas Macpherson - Santa Barbara CA, US
Hjalti Skulason - Buellton CA, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE
DuPont Displays, Inc. - Santa Barbara CA

International Classification:

C08K 3/04
C08K 3/20
C08K 3/34
C08K 5/22
C08K 5/34
C08K 5/53

US Classification:

524445, 524447, 524492, 524495, 524500, 524501, 524555, 524723, 524726, 524730, 524817

Abstract:

Organic compositions of conductive polymers are provided. The compositions have at least one polymer selected from polypyrrole, polythiophene, or combinations and at least one colloid-forming polymeric acid dispersed in a liquid medium that is at least 60% by weight at least one organic liquid. Also provided is a method of making such compositions.

US Patent:

7276453, Oct 2, 2007

Filed:

Aug 10, 2004

Appl. No.:

10/915578

Inventors:

Nugent Truong - Ventura CA, US
Charles Douglas MacPherson - Santa Barbara CA, US

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

H01L 21/302
H01L 21/461

US Classification:

438739, 438 30, 257E21021, 257E21036

Abstract:

An electronic device having a substrate structure having an undercut region is provided and further included is a method for forming an undercut region of a substrate structure. The method includes forming a patterned protective layer over a first electrode. The method also includes forming the substrate structure over the patterned protective layer. An opening within the substrate structure overlies an exposed portion of the substrate structure. The method further includes removing the exposed portion of the patterned protective layer, thereby exposing a portion of the first electrode and forming an undercut region of the substrate structure. The method still further includes depositing a liquid over the first electrode after removing the exposed portion of the patterned protective layer, and solidifying the liquid to form a solid layer.

US Patent:

7390438, Jun 24, 2008

Filed:

Mar 17, 2004

Appl. No.:

10/802704

Inventors:

Yong Cao - Goleta CA, US
Sunghan Kim - Goleta CA, US
Daniel David Lecloux - Buellton CA, US
Huawen Li - Camarillo CA, US
Charles Douglas MacPherson - Santa Barbara CA, US
Chi Zhang - Goleta CA, US
Hjalti Skulason - Buellton CA, US

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

H01B 1/12

US Classification:

252500, 528378

Abstract:

Compositions are provided comprising aqueous dispersions of polythiophenes having homopolymers or co-polymers of Formula I(a) or Formula I(b) and at least one colloid-forming polymeric acid. Methods of making such compositions and using them in organic electronic devices are further provided.

US Patent:

7420205, Sep 2, 2008

Filed:

Aug 17, 2007

Appl. No.:

11/840367

Inventors:

Charles D. MacPherson - Santa Barbara CA, US
Gordana Srdanov - Santa Barbara CA, US
Matthew Stainer - Goleta CA, US
Gang Yu - Santa Barbara CA, US

Assignee:

E. I. du Pont de Nemours and Company - Wilmington DE

International Classification:

H01L 33/00
H01L 51/00

US Classification:

257 40, 257 89, 257E31001, 257E51022

Abstract:

An electronic device made by a process that includes forming a first layer over a substrate and placing a first liquid composition over a first portion of the first layer. The first liquid composition includes at least a first guest material and a first liquid medium. The first liquid composition comes in contact with the first layer and a substantial amount of the first guest material intermixes with the first layer. An electronic device includes a substrate and a continuous first layer overlying the substrate. The continuous layer includes a first portion in which an electronic component lies and a second portion where no electronic component lies. The first portion is at least 30 nm thick and includes a first guest material, and the second portion is no more than 40 nm thick.

US Patent:

7469638, Dec 30, 2008

Filed:

Dec 30, 2004

Appl. No.:

11/027133

Inventors:

Charles Douglas MacPherson - Santa Barbara CA, US
Dennis Damon Walker - Santa Barbara CA, US
Matthew Stainer - Goleta CA, US
Christopher Todd Knudson - Santa Barbara CA, US
Gang Yu - Santa Barbara CA, US

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

B41L 39/00
H05L 51/30

US Classification:

101483, 257 40, 396428, 430 22, 428 99

Abstract:

An electronic device includes an array. In one embodiment, a process for forming an electronic device includes the array, which includes electronic components, can include printing one or more layers as a series of segments onto a workpiece. In one embodiment, a process includes printing a layer onto the workpiece and at least one exposed portion of the chuck. In still another embodiment, a printing head is greater than 0. 5 mm from the workpiece. In a further embodiment, “hybrid” printing can be used to help form a thicker layer having a relatively thinner width. In a further embodiment, processes can be used to reduce the likelihood of a stitching defect, nonuniformity of a layer across an array, or a combination thereof. A printing apparatus can be modified to achieve more flexibility in liquid compositions, temperatures or other conditions used in printing a layer.

US Patent:

7584701, Sep 8, 2009

Filed:

Dec 30, 2004

Appl. No.:

11/026265

Inventors:

Charles Douglas MacPherson - Santa Barbara CA, US
Dennis Damon Walker - Santa Barbara CA, US
Matthew Stainer - Goleta CA, US

Assignee:

E.I. du Pont de Nemours and Company - Wilmington DE

International Classification:

B41L 35/14

US Classification:

101488, 101487

Abstract:

An electronic device includes a printed layer. In one embodiment, a process for forming the electronic device includes placing a workpiece over a chuck within a printing apparatus. A temperature difference is established between the workpiece and a liquid composition. The process further includes continuously printing the liquid composition over the workpiece. A viscosity of the liquid composition is allowed to increase at a rate significantly higher than an ambient viscosity increase rate. In another embodiment, the workpiece is allowed to cool to a temperature significantly below an ambient temperature before printing occurs. In still another embodiment, a printing apparatus is used for continuously printing the liquid composition over the workpiece. The printing apparatus includes the chuck, a printing head, a container, a feed line, and a first temperature-adjusting element thermally coupled to the chuck, the printing head, the container the feed line, or a combination thereof.