公开(公告)号：CA2034896A1

公开(公告)日：1991-07-26

申请号：CA2034896

申请日：1991-01-24

Applicant: HOECHST AG

Inventor： DUBAL HANS-ROLF ,  MURAKAMI MIKIO ,  DROTLOFF HANS-OTTO ,  BREKNER MICHAEL

IPC: C09K19/56 ,  C08G65/40 ,  G02F1/1337 ,  C09K19/20

Abstract: HOE 90/F 018 of the disclosure: Use of polyaryl ether ketones as alignment layers Use of polyaryl ether ketones comprising structural units -O-A-O-B- gives alignment layers for liquid-crystal display and switching devices which have high transparency, low water absorption capacity and particularly uniform alignment both of smectic and of nematic liquid crystals, and thus produce a high contrast capability.

公开(公告)号：PT96573A

公开(公告)日：1991-10-15

申请号：PT9657391

申请日：1991-01-24

Applicant: HOECHST AG

Inventor： DUEBAL HANS-ROLF ,  MURAKAMI MIKIO ,  DROTLOFF HANSOTTO ,  BREKNER MICHAEL

IPC: C09K19/56 ,  C08G65/40 ,  G02F1/1337 ,  C09D

Abstract: The use of polyaryl ether ketones of the structural unit -O-A-O-B- gives alignment layers for liquid-crystal displays and switching elements which have high transparency, low water-absorption capacity and a particularly uniform alignment, both of smectic and nematic liquid crystals, and thus enable high contrast to be obtained.