Back to results
US 5,824,377 AGranted
Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof
AssigneeLG Electronics Inc.
InventorsGrit Pirwitz, Horst Zaschke, Andrea Hohmuth, Yuriy Reznikov, Oleg Yaroshchuk, Igor Cerus
Life of this patent
Estimating the term…
Abstract
Photosensitive orientation material providing unidirectional LC alignment to generate a high pretilt angle for various LC compounds, and superior thermal stability, and being suitable for mass production, especially for active matrix LC displays, including polysiloxane, and a derivative of a cinnamoyl group.
Claims11
A liquid crystal device, comprising:
- a substrate;
- a liquid crystal layer;
- and
- an orientation layer between said substrate and said liquid crystal layer for orienting said liquid crystal layer, said orientation layer including a compound of the formula;
- ##STR6## wherein Cin is:
- ##STR7## wherein Z is selected from the group consisting of OH, CH.sub.3, C.sub.2 H.sub.5, C.sub.6 H.sub.5, and a mixture of OH and CH.sub.3 ;
- m is from 10 up to 100;
- is from 1 up to 10;
- L is 0 or 1;
- K is 0 or 1;
- and
- X, X.sub.1, X.sub.2, Y are selected from the group consisting of H, F, Cl, CN, CH.sub.3, CF.sub.3, OCF.sub.3, C.sub.n H.sub.2n+1, and OC.sub.n H.sub.2n+1, wherein n is from 1 up to 10.
9 more elements
A liquid crystal device, comprising:
- a first substrate;
- a second substrate;
- a liquid crystal layer between said first and second substrates;
- a first orientation layer over said first substrate, said first orientation layer including a compound of the formula;
- ##STR8## wherein Cin is:
- ##STR9## Z is selected from the group consisting of OH, CH.sub.3 C.sub.2 H.sub.5, and a mixture of OH and CH.sub.3 ;
- m is from 10 up to 100;
- is from 1 u to 10;
- Lis 0 or 1;
- K is 0 or 1;
- X, X.sub.1, X.sub.2, Y are selected from the group consisting of H, F, Cl, CN, CH.sub.3, CF.sub.3, OCF.sub.3, C.sub.n H.sub.2n+1, and OC.sub.n H.sub.2n+1, wherein n is from 1 up to 10;
- and
- a second orientation layer over said second substrate for orienting said liquid crystal layer cooperatively with said first orientation layer, said second orientation layer including a material different from that of said first orientation layer.
10 more elements
A liquid crystal device, comprising:
- a first substrate;
- a second substrate;
- a liquid crystal layer between said first and second substrates;
- and
- first and second orientation layers over said first and second substrates for cooperatively orienting said liquid crystal layer, each of said first and second orientation layers including a compound of the formula;
- ##STR10## wherein Cin is;
- ##STR11## Z is selected from the group consisting of OH, CH.sub.3, C.sub.2 H.sub.5, C.sub.6 H.sub.5, and a mixture of OH and CH.sub.3 ;
- m is from 10 up to 100:
- is from 1 up to 10;
- L is 0 or 1;
- K is 0 or 1;
- X, X.sub.1, X.sub.2, Y are selected from the group consisting of H, F, Cl, CN, CH.sub.3, CF.sub.3, OCF.sub.3, C.sub.n H.sub.2n+1, and OC.sub.n H.sub.2n+1, wherein n is from 1 up to 10.
9 more elements
A liquid crystal device, comprising:
- a substrate;
- a liquid crystal layer;
- and
- an orientation layer between said substrate and said liquid crystal layer for orienting said liquid crystal layer, said orientation layer including a compound of the formula:
- ##STR12## wherein Cin is:
- ##STR13## wherein Z is selected from the group consisting of OH, CH.sub.3, C.sub.2 H.sub.5, C.sub.6 H.sub.5, and a mixture of OH and CH.sub.3 ;
- m is from 10 up to 100;
- is from 7 up to 10;
- L is 0 or 1;
- K is 0 or 1;
- X is selected from the group consisting of CF.sub.3, OCF.sub.3, C.sub.n H.sub.2n+1, and OC.sub.n H.sub.2n+1, wherein n is from 1 up to 10;
- X.sub.1, and X.sub.2 are selected from the group consisting of OCF.sub.3 and C.sub.n H.sub.2n+1, wherein n is 1,3, or from 5 up to 10, and OC.sub.n H.sub.2n+1, wherein n is 2 or from 6 up to 10;
- and
- Y is selected from the group consisting of OCF.sub.3 and OC.sub.n H.sub.2n+1, wherein n is from 1 up to 10.
11 more elements
Dependencies are inferred from the claim text.