公开(公告)号：EP2239602A1

公开(公告)日：2010-10-13

申请号：EP09814385.2

申请日：2009-07-14

Applicant: Sony Corporation

Inventor： OKUYAMA Kentaro ,  KATAKURA Hitoshi ,  OBATA Kei ,  SHIMIZU Jun ,  SUZUKI Shinya ,  HOSHI Mitsunari ,  INOUE Junichi ,  KURIYAMA Akito

IPC: G02B5/30 ,  G02F1/13 ,  G02F1/1335 ,  G02F1/13363

CPC classification number: G02B5/3083 ,  B29D11/00644 ,  B32B2457/20 ,  B32B2457/204 ,  G02B5/045 ,  G02F1/133555 ,  G02F1/133636 ,  G02F2001/133631 ,  G02F2001/133638 ,  G02F2202/023 ,  G02F2413/02 ,  G02F2413/05 ,  G02F2413/11

Abstract: A retardation film which is manufacturable by a simple process, and being capable of preventing a decline in light use efficiency is provided. In a retardation film 10, a retardation layer 12 is formed in contact with a surface of a substrate 11 in which groove regions 11A and 11B are alternately patterned in stripe shape. The groove regions 11A and 11B include a plurality of grooves 111a and 111b extending in directions d1 and direction d2, respectively. The retardation layer 12 includes retardation film regions 12a and 12b corresponding to the groove regions 11A and 11B. In the retardation film regions 12a and 12b, liquid crystal molecules 120 are alighed along the extending directions d1 and d2 of the groobves, respectively. The retardation film is in contact with the surface of substrate, that is, no alighment film is formed; thereby generation of light loss is prevented. The patterns of groove regions 11A and 11B are collectively formed by transfer using a mold.

Abstract translation: 提供了可以通过简单的工艺制造并且能够防止光使用效率下降的延迟膜。 在延迟膜10中，形成与基板11的表面接触的延迟层12，其中沟槽区域11A和11B交替地以条纹形式图案化。 槽区域11A和11B分别包括沿方向d1和方向d2延伸的多个槽111a和111b。 延迟层12具有与槽区域11A，11B对应的延迟膜区域12a，12b。 在延迟膜区域12a和12b中，液晶分子120分别沿着凹槽的延伸方向d1和d2分别。 相位差膜与基板的表面接触，即不形成换向膜; 从而防止光损失的产生。 凹槽区域11A和11B的图案通过使用模具的转印共同形成。