Tomohiro Ishikawa

6819381, Nov 16, 2004

Oct 28, 2002

10/281595

Xiang-Dong Mi - Rochester NY
Tomohiro Ishikawa - Rochester NY

Eastman Kodak Company - Rochester NY

G02F 11335

349117, 349119, 349121

Disclosed is an optical compensation film for improves viewing angle of twisted nematic liquid crystal display, especially in the vertical viewing direction. The said optical compensation film contains a positively birefringent material oriented with its optic axis tilted in a plane perpendicular to the film plane, wherein the phase retardation value defined by (ne-no)d is 100Â20 nm at the wavelength of 550 nm and the average tilt angle relative to the film plane is 10Â5Â, where ne and no are the extraordinary and ordinary refractive indices, respectively, and d, the thickness of the birefringent material.

6831722, Dec 14, 2004

Apr 14, 2003

10/413106

Tomohiro Ishikawa - Rochester NY
Xiang-Dong Mi - Rochester NY

Eastman Kodak Company - Rochester NY

G02F 11335

349117, 349121, 349118, 349119

An optical compensation film for liquid crystal displays comprises first and second optically anisotropic layers containing positively birefringent material disposed on a substrate, wherein the optic axis, thickness, and retardation of these layers are within prescribed limitations.

6937308, Aug 30, 2005

Jul 26, 2002

10/205860

Tomohiro Ishikawa - Rochester NY, US
Xiang-Dong Mi - Rochester NY, US

Eastman Kodak Company - Rochester NY

G02F001/1335

349117, 349119, 349121, 349141

Disclosed is a display comprising an in-plane switching (IPS) mode liquid crystal cell, a polarizer, and a compensation film containing a positively birefringent material with the optic axis tilted in a plane perpendicular to the liquid crystal cell plane. Such displays exhibit an improved viewing angle characteristic.

6937310, Aug 30, 2005

May 16, 2003

10/439541

James F. Elman - Fairport NY, US
Tomohiro Ishikawa - Rochester NY, US
Dennis J. Massa - Pittsford NY, US
Paul D. Yacobucci - Rochester NY, US
Catherine A. Falkner - Rochester NY, US

Eastman Kodak Company - Rochester NY

G02F001/1335
C09K019/02

349118, 349117, 349119, 349181, 25229901, 428 13

Disclosed is an optical compensation film for Liquid Crystal Displays comprising an amorphous polymer layer disposed on a substrate wherein said amorphous polymer layer has an out-of-plane birefringence Δn(λ) at a wavelength λ that satisfies both conditions (1) and (2):.

6943930, Sep 13, 2005

Sep 12, 2002

10/242564

Xiang-Dong Mi - Rochester NY, US
David Kessler - Rochester NY, US
Rongguang Liang - Rochester NY, US
Tomohiro Ishikawa - Rochester NY, US

Eastman Kodak Company - Rochester NY

G02F001/03

359247, 359249

An exposure system () for fabricating optical film () such as for photoalignment, where the optical film () has a photosensitive layer () and a substrate (). The exposure system () directs an exposure beam from a light source () through the optical film (), then uses a reflective surface () to reflect the exposure energy back through the optical film () to enhance or otherwise further condition the photoreaction of the photosensitive layer ().

6964795, Nov 15, 2005

May 8, 2003

10/431742

James F. Elman - Fairport NY, US
Tomohiro Ishikawa - Rochester NY, US
Paul D. Yacobucci - Rochester NY, US
Dennis J. Massa - Pittsford NY, US

Eastman Kodak Company - Rochester NY

G02F001/13363

428 13, 349117, 349118, 349119, 349120, 349121

Disclosed is an optical compensator for liquid crystal displays comprising a first polymeric layer having an out-of-plane birefringence not more negative than −0. 005 and a second polymeric layer having an out-of-plane birefringence more negative than −0. 005. The invention also provides an LC display and a process for making such compensators.

6995816, Feb 7, 2006

Apr 12, 2002

10/121991

Xiang-Dong Mi - Rochester NY, US
David Kessler - Rochester NY, US
Andrew F. Kurtz - Rochester NY, US
Tomohiro Ishikawa - Rochester NY, US

Eastman Kodak Company - Rochester NY

G02F 1/1335

349 96, 349117, 349118, 349119, 349120, 349102

Disclosed is a polarizer package comprising an integrated combination of an absorbing layer and a compensator. Two of the identical polarizer packages can be crossed and used in a transmissive optical device. This polarizer package can also be used in combination with a reflective plate and a quarter wave plate in a reflective optical device. Such polarizer packages exhibit an improved viewing angle characteristic across all wavelengths of interest, has a large tolerance for compensators to be aligned relative to their preferred directions, and can be used within an LCD or emissive display system.

7006184, Feb 28, 2006

Apr 12, 2002

10/122080

Xiang-Dong Mi - Rochester NY, US
Tomohiro Ishikawa - Rochester NY, US

Eastman Kodak Company - Rochester NY

G02F 1/1337

349130, 349117, 349118, 349121, 349123

Disclosed is a display comprising a bend aligned nematic liquid crystal cell, a polarizer, and a compensation film containing a positively birefringent material oriented with the optic axis tilted in a plane perpendicular to the liquid crystal cell surface plane. Such displays exhibit an improved viewing angle characteristic.