US 7,605,894 B2
Phase difference control component having columnar material
Norihisa Moriya, Tokyo (Japan)
Assigned to Dai Nippon Printing Co., Ltd., Tokyo (Japan)
Filed on Feb. 02, 2007, as Appl. No. 11/670,421.
Application 11/670421 is a division of application No. 10/864307, filed on Jun. 08, 2004, granted, now 7,286,199.
Claims priority of application No. 164527 (JP), filed on Jun. 10, 2003.
Prior Publication US 2008/0278662 A1, Nov. 13, 2008
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/13363 (2006.01); G02F 1/1339 (2006.01)
U.S. Cl. 349—117  [349/106; 349/156] 6 Claims
OG exemplary drawing
 
1. A phase difference control member adapted to be employed in a display cell, comprising a substrate, a phase difference control layer and columns, wherein said phase difference control layer has a first face that is stacked on said substrate and comprises a liquid crystalline polymer, and said columns are provided at a second face of said phase difference control layer and formed of a material obtained by curing an ionizing radiation-curable resin composition, wherein said second face of said phase difference control member is opposite said first face of said phase difference control layer that is stacked on said substrate and said second face side is adapted to be oriented toward a display component when assembled in the display cell,
further comprising a color filter layer is interposed between said substrate and said phase difference control layer or on a side of said phase difference control layer that faces away from said substrate.