Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Moon Soo Park0
Karl Skjonnemand0
Kim Slaney0
Mark Verrall0
Byoung Kun Jeon0
Jeong Su Yu0
Date of Patent
January 30, 2007
0Patent Application Number
104343660
Date Filed
May 9, 2003
0Patent Primary Examiner
Patent abstract
An achromatic quarter wave film (AQWF) comprising at least one quarter wave film (QWF) and at least one half wave film (HWF), each of said QWF and HWF comprising polymerized or vitrified anisotropic material, to methods and materials for the preparation of the AQWF, its use in optical devices like compensators and liquid crystal displays, and to a liquid crystal display comprising such an AQWF.
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