High durability circular polarizer for use with emissive displays

United States of America Patent

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Apr 15, 2003
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N/A
app pub date
Jul 28, 2000
filing date
Jul 28, 2000

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Expired

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Abstract

A high durability circular polarizer includes an unprotected K-type polarizer, such as a KE polarizer sheet, and a quarter-wavelength retarder. An optical system using the circular polarizer further includes an emissive display module such as an organic light emitting diode or a plasma display device.

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Patent Owner(s)

Patent Owner	Address
SEIKO EPSOM CORPORATION	4-1 NISHISHINJUKU 2-CHOME SHINJUKU-KU TOKYO

International Classification(s)

G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Carlson, Gene R	Randolph, MA	1	159
Gordon, James N	Newton, MA	13	219
Pawlak, Richard	Stow, MA	1	159
Trapani, Giorgio	Cambridge, MA	8	235

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High durability circular polarizer for use with emissive displays

Number of patents in Portfolio can not be more than 2000

United States of America Patent

09627257

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PATENT NO	6549335
SERIAL NO	09627257
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09627257

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