US Patent 7480021 Optical films having reverse dispersion
Patent 7480021 was granted and assigned to Nitto Denko on January, 2009 by the United States Patent and Trademark Office.
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Patent abstract
This invention relates to an optical film comprising a first component having a birefringence dispersion of D1>1 and a second component having a birefringence dispersion of D2<1, wherein the birefringence ratio of the first and second component is delta n1/delta n2>0, wherein the optical film has a reverse birefringence dispersion of D<1.
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US Patent 07480021 Optical films having reverse dispersion US Patent 7480021 Optical films having reverse dispersion
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Patent Number
0748002100
Patent Number
748002100
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074800210
Date of Patent
January 20, 2009
0Patent Application Number
113213450
Date Filed
December 29, 2005
0Official Website
Patent Primary Examiner
Edits on 24 Sep, 2022
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Infobox
Is a
Current Assignee
Patent Jurisdiction
Patent Number
074800210
Date of Patent
January 20, 2009
0Patent Application Number
113213450
Date Filed
December 29, 2005
0Official Website
Patent Primary Examiner
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US Patent 07480021 Optical films having reverse dispersion
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07480021
Date of patent
January 20, 2009
Patent application number
11321345
Date Filed
December 29, 2005
Patent primary examiner
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