公开(公告)号：JPH04227685A

公开(公告)日：1992-08-17

申请号：JP33702490

申请日：1990-11-30

Applicant: HOECHST AG

Inventor： KURAUSU ETSUSHIYAA ,  HARADA TAKAMASA ,  GEEAHARUTO IRIAN ,  MURAKAMI MIKIO ,  NORUBERUTO REESHIYU ,  PEETAA BUEEGENAA ,  RAINAA BUINGEN

IPC: C09K19/54 ,  G02F1/13 ,  G09F9/35

公开(公告)号：JPH04230735A

公开(公告)日：1992-08-19

申请号：JP19977591

申请日：1991-04-22

Applicant: HOECHST AG

Inventor： HANSUURORUFU DEYUBARU ,  HARADA TAKAMASA ,  HAINTSU RIIGAA ,  NORUBERUTO REESHIYU ,  PEETAA BUEEGENAA

IPC: C09K19/00 ,  G02F1/13 ,  G02F1/133 ,  G02F1/1337

Abstract: PURPOSE: To make it possible to improve the contrast and brightness of images by using a compd. having hydrophilicity and lipophilic in combination as oriented layers. CONSTITUTION: This liquid crystal display has a transparent outer plate, electrodes, polarizers, ferroelectric liquid crystal media and the oriented layers. The oriented layers contain components having the hydrophilicity and lipophilicity. Namely, the oriented layers which are originally hydrophilic and lipophilic are subjected to a treatment to make these components to amphoteric compds. or the amphoteric compds. are chemically bonded to the oriented layers, by which these layers are made amphoteric. The amphoteric compds. have surfactant-like properties and the oriented layers made amphoteric improve the contrast of the display, thereby brightening the images.

公开(公告)号：JPH04225090A

公开(公告)日：1992-08-14

申请号：JP8023391

申请日：1991-04-12

Applicant: HOECHST AG

Inventor： HARADA TAKAMASA ,  NORUBERUTO REESHIYU ,  PEETAA BUEEGENAA

IPC: C09K19/06 ,  C09K19/30 ,  C09K19/32 ,  C09K19/34 ,  C09K19/40 ,  C09K19/54 ,  C09K19/56 ,  C09K19/58 ,  G02F1/13 ,  G02F1/137

公开(公告)号：JPH03180815A

公开(公告)日：1991-08-06

申请号：JP15659990

申请日：1990-06-14

Applicant: HOECHST AG

Inventor： HANSUURORUFU DEYUUBARU ,  KURAUSU ETSUSHIYAA ,  HARADA TAKAMASA ,  GEEAHARUTO IRIAN ,  MURAKAMI MIKIO ,  HAINTSU RIIGAA ,  NORUBERUTO REESHIYU ,  PEETAA BUEEGENAA ,  RAINAA BUINGEN

IPC: G02F1/1337

Abstract: PURPOSE: To improve the lightness, contrast and switching of a liq. crystal display by incorporating a lipophilic compd., a lipophilic property imparting compd. or its mixture into at least one of the constituent elements of the liq. crystal display. CONSTITUTION: In order to improve the max. lightness, max. contrast and display speed of a liq. crystal display, an orienting layer of polyimide or polyamide as one of the constituent elements of the display is composed of 50-99.99wt.% polyimide or polyamide and 0.01-50wt.% one or more kinds of lipophilic compds. or lipophilic property imparting compds. The compds. may be incorporated into an insulating layer, an electrode, a transparent substrate or a polarizing plate. The lipophilic compds. may be monomer, oligomer or polymer compds. and have low polarity and high lipophilic characteristics.

公开(公告)号：JPH03149289A

公开(公告)日：1991-06-25

申请号：JP20906490

申请日：1990-08-06

Applicant: HOECHST AG

Inventor： HANSUURORUFU DEYUUBARU ,  KURAUSU ETSUSHIYAA ,  HARADA TAKAMASA ,  BUORUFUGANGU HEMERURINKU ,  GEEAHARUTO IRIAN ,  INGURITO MIYUURAA ,  MURAKAMI MIKIO ,  DEIITAA OORENDORUFU ,  PEETAA BUEEGENAA ,  RAINAA BUINGEN

IPC: C09K19/20 ,  C09K19/34 ,  C09K19/46