Search

Jan Bernkopf Phones & Addresses

  • Fairfax, VA
  • Coraopolis, PA
  • Boca Raton, FL
  • 296 Kozy Corner Rd, Valencia, PA 16059 (724) 898-0047
  • 103 Buckingham Dr, Valencia, PA 16059 (724) 898-0269
  • Horsham, PA
  • Hollister, CA
  • San Jose, CA
  • Bensalem, PA

Work

Company: Plextronics Apr 2007 Position: Senior scientist

Education

Degree: Ph.D. School / High School: Czech Technical University in Prague 1964 to 1971 Specialities: Solid State Physics

Industries

Chemicals

Resumes

Resumes

Jan Bernkopf Photo 1

Senoior Scientist At Plextronics

View page
Position:
Senior Scientist at Plextronics
Location:
Greater Pittsburgh Area
Industry:
Chemicals
Work:
Plextronics since Apr 2007
Senior Scientist

Advantech, Inc. Jan 2002 - Feb 2007
Senior Scientist

Advantech US 2002 - 2007
Sr. Scientis

Alien Technology 1999 - 2002
Director
Education:
Czech Technical University in Prague 1964 - 1971
Ph.D., Solid State Physics

Publications

Us Patents

System And Method For Total Light Extraction From Flat-Panel Light-Emitting Devices

View page
US Patent:
7535171, May 19, 2009
Filed:
Jun 21, 2007
Appl. No.:
11/812753
Inventors:
Jan Bernkopf - Valencia PA, US
Assignee:
Advantech Global, Ltd. - Tortola
International Classification:
H01J 1/62
US Classification:
313506, 313498
Abstract:
A system and method for improving light extraction from luminescent devices such as light-emitting flat-panel displays (for example, light-emitting diode (OLED) flat-panel displays) or flat panel lamps. The system includes a material with negative index of refraction, preferably with n=−1. The presence of such material on the exit surface of the electro-optic devices such as flat panel display or lamp with light-generating medium sandwiched between materials with refractive index n>1 fully removes TIR and results in light outcoupling efficiency of about 100%.

Receptacles For Inkjet Deposited Pled/Oled Devices And Method Of Making The Same

View page
US Patent:
7911130, Mar 22, 2011
Filed:
Jul 12, 2007
Appl. No.:
11/826132
Inventors:
Thomas P. Brody - Pittsburgh PA, US
Jan Bernkopf - Valencia PA, US
Assignee:
Advantech Global, Ltd. - Tortola
International Classification:
H01J 1/62
H01J 63/04
US Classification:
313504, 313503, 313292
Abstract:
Evaporated receptacles for inkjet deposited polymeric light-emitting diode (PLED)/organic light-emitting diode (OLED) and a method of making the same. The evaporated receptacles are formed via a shadow mask vacuum deposition process. The method of forming a light-emitting display includes forming an electrode on a substrate, forming a receptacle structure over the electrode via a shadow mask vacuum deposition process, and delivering a quantity of polymeric solution, which contains a light-emitting material, into the receptacle via a standard inkjet deposition process.

Receptacles For Inkjet Deposited Pled/Oled Devices And Method Of Making The Same

View page
US Patent:
20060066235, Mar 30, 2006
Filed:
Sep 27, 2004
Appl. No.:
10/949214
Inventors:
Thomas Brody - Pittsburgh PA, US
Jan Bernkopf - Valencia PA, US
International Classification:
H05B 33/04
US Classification:
313512000, 313503000, 313506000
Abstract:
Evaporated receptacles for inkjet deposited polymeric light-emitting diode (PLED)/organic light-emitting diode (OLED) and a method of making the same. The evaporated receptacles are formed via a shadow mask vacuum deposition process. The method of forming a light-emitting display includes forming an electrode on a substrate, forming a receptacle structure over the electrode via a shadow mask vacuum deposition process, and delivering a quantity of polymeric solution, which contains a light-emitting material, into the receptacle via a standard inkjet deposition process.

A Display Having A Standard Or Reversed Schieren Microprojector At Each Picture Element

View page
US Patent:
53531337, Oct 4, 1994
Filed:
Jan 18, 1994
Appl. No.:
8/182684
Inventors:
Jan Bernkopf - Gibsonia PA
Assignee:
Magnascreen Corporation - Pittsburgh PA
International Classification:
G02F 11335
G02F 113
F21V 704
F16C 2902
US Classification:
359 41
Abstract:
A flat-panel display system and a display method utilizing microprojection techniques whereby each pixel of the display acts as its own micro-projector. The micro-projector utilizes a reversed Schlieren optical arrangement. A flat fiber-optic illuminator and an illumination method provide collimated light for the display. A layer of light scattering material such as polymer dispersed liquid crystal (PDLC) is interposed between the illuminator and the rear-projection screen of the display. The scattering layer, when in a first state, allows the collimated light to pass through openings in an aperture plate that is part of the microprojection display. In a second state, the scattering layer scatters the collimated light. Side and vertical walls of the aperture plate absorb most of the scattered light resulting in a high contrast ratio for the display. The degree of scattering can be controlled to provide for a gray scale for the display.
Jan B Bernkopf from Fairfax, VA, age ~77 Get Report