LIQUID CRYSTAL ALIGNING AGENT, LIQUID CRYSTAL ALIGNMENT FILM AND LIQUID CRYSTAL DISPLAY DEVICE
申请人:NISSAN CHEMICAL INDUSTRIES, LTD.
公开号:US20160244673A1
公开(公告)日:2016-08-25
To provide a liquid crystal aligning agent to obtain a liquid crystal alignment film which is excellent in the adhesion to a sealing agent and in the liquid crystal alignment property.
A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having structural units represented by the formula (1) and structural units represented by the formula (3) and an imidized polymer of the polyimide precursor:
wherein X
1
and X
4
are a tetravalent organic group, Y
1
is a bivalent organic group having a thermally-leaving group, Y
2
is a bivalent organic group, R
1
and R
2
are a hydrogen atom or a C
1-5
alkyl group, and Z
1
and Z
2
are a hydrogen atom, or a C
1-10
alkyl group, C
2-10
alkenyl group or C
2-10
alkynyl group which may have a substituent.
LIQUID CRYSTAL ALIGNING AGENT CONTAINING POLYIMIDE PRECURSOR HAVING THERMALLY-LEAVING GROUP AND/OR POLYIMIDE
申请人:NISSAN CHEMICAL INDUSTRIES, LTD.
公开号:US20160264867A1
公开(公告)日:2016-09-15
To provide a liquid crystal aligning agent to obtain a liquid crystal alignment film which is excellent in the adhesion to a sealing agent and a substrate of a liquid crystal display device, and of which a decomposed product formed after irradiation with ultraviolet rays will easily be removed.
A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having a bond represented by the following formula (1) in its main chain and an imidized polymer of the polyimide precursor:
wherein each of R
1
, R
2
, R
3
and R
4
which are independent of one another, is a hydrogen atom or a C
1-20
monovalent hydrocarbon group which may have a substituent, and D is a protecting group to be replaced with a hydrogen atom by heat.
Liquid crystal aligning agent, liquid crystal alignment film and liquid crystal display device
申请人:NISSAN CHEMICAL INDUSTRIES, LTD.
公开号:US10011772B2
公开(公告)日:2018-07-03
To provide a liquid crystal aligning agent to obtain a liquid crystal alignment film which is excellent in the adhesion to a sealing agent and in the liquid crystal alignment property.
A liquid crystal aligning agent containing at least one polymer selected from the group consisting of a polyimide precursor having structural units represented by the formula (1) and structural units represented by the formula (3) and an imidized polymer of the polyimide precursor:
wherein X1 and X4 are a tetravalent organic group, Y1 is a bivalent organic group having a thermally-leaving group, Y2 is a bivalent organic group, R1 and R2 are a hydrogen atom or a C1-5 alkyl group, and Z1 and Z2 are a hydrogen atom, or a C1-10 alkyl group, C2-10 alkenyl group or C2-10 alkynyl group which may have a substituent.
ARRAY ANTENNA, METHOD FOR PRODUCING SAME, AND LIQUID CRYSTAL ALIGNING AGENT FOR ARRAY ANTENNA
申请人:JSR CORPORATION
公开号:US20200286923A1
公开(公告)日:2020-09-10
This array antenna
10
comprises a plurality of antenna units
11
. This array antenna
10
is provided with a patch substrate
12
, a slotted substrate
13
and a liquid crystal layer
14
. At least one of the patch substrate
12
and the slotted substrate
13
is provided with a liquid crystal alignment film
22, 23
on the liquid crystal layer
14
side. The liquid crystal alignment film
22, 23
is formed using a polymer composition that contains a compound (M) which has at least one structure selected from the group consisting of partial structures represented by formula (1) and nitrogen-containing heterocyclic rings (in formula (1), R1 represents a hydrogen atom or a monovalent organic group having 1-10 carbon atoms; and each of R2 and R3 independently represents a divalent organic group, provided that the R2 and R3 moieties are not aromatic ring groups at the same time).