JPS55156917A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPS55156917A JPS55156917A JP6385779A JP6385779A JPS55156917A JP S55156917 A JPS55156917 A JP S55156917A JP 6385779 A JP6385779 A JP 6385779A JP 6385779 A JP6385779 A JP 6385779A JP S55156917 A JPS55156917 A JP S55156917A
- Authority
- JP
- Japan
- Prior art keywords
- tetracarboxylic acid
- liquid crystal
- crystal display
- display element
- orientation film
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title abstract 2
- -1 aminobiphenyl compound Chemical class 0.000 abstract 2
- 229920005601 base polymer Polymers 0.000 abstract 2
- 239000002952 polymeric resin Substances 0.000 abstract 2
- 239000000758 substrate Substances 0.000 abstract 2
- VQVIHDPBMFABCQ-UHFFFAOYSA-N 5-(1,3-dioxo-2-benzofuran-5-carbonyl)-2-benzofuran-1,3-dione Chemical compound C1=C2C(=O)OC(=O)C2=CC(C(C=2C=C3C(=O)OC(=O)C3=CC=2)=O)=C1 VQVIHDPBMFABCQ-UHFFFAOYSA-N 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 238000004040 coloring Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 238000006798 ring closing metathesis reaction Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 150000000000 tetracarboxylic acids Chemical class 0.000 abstract 1
Landscapes
- Liquid Crystal (AREA)
- Liquid Crystal Substances (AREA)
Abstract
PURPOSE: To avert the coloring of the orientation film at the glass frit sealing and obtain the liquid crystal display element of superior transparency and contrast by forming the orientation film to be provided on the conductive film on substrates by the use of the specific polyimide-base polymer resin.
CONSTITUTION: The orientation film is formed by using the polyimide-base polymer resin shown by formula (X is SO2, O, CO, CH2, S; Y is residual groups of tetracarboxylic acid anhydride). Namely, aminobiphenyl compound (for example, 4, 4'- aminophenoxy aminobiphenylsulfone) and tetracarboxylic acid dianhydride (for example, 3,3',4,4'-benzophenone tetracarboxylic acid dianhydride) are condensed to synthesize polyamide acide and this is coated on a substrate, after which it is heated for about 1hr at about 250°C to cause ring closure, whereby the orientation layer composed of the above-mentioned resin layer is formed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6385779A JPS55156917A (en) | 1979-05-25 | 1979-05-25 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6385779A JPS55156917A (en) | 1979-05-25 | 1979-05-25 | Liquid crystal display element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55156917A true JPS55156917A (en) | 1980-12-06 |
Family
ID=13241421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6385779A Pending JPS55156917A (en) | 1979-05-25 | 1979-05-25 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55156917A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59170122A (en) * | 1983-03-14 | 1984-09-26 | イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− | Melt-fusable polyimide |
| JPS62111237A (en) * | 1985-07-10 | 1987-05-22 | Hitachi Ltd | Ferroelectric liquid crystal element |
| KR101976828B1 (en) * | 2017-11-03 | 2019-05-09 | 한국과학기술연구원 | Diamine compound, polyamic acid prepared therefrom, polyimide prepared therefrom, and polyimide film including polyimde |
-
1979
- 1979-05-25 JP JP6385779A patent/JPS55156917A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59170122A (en) * | 1983-03-14 | 1984-09-26 | イ−・アイ・デユポン・デ・ニモアス・アンド・カンパニ− | Melt-fusable polyimide |
| JPS62111237A (en) * | 1985-07-10 | 1987-05-22 | Hitachi Ltd | Ferroelectric liquid crystal element |
| KR101976828B1 (en) * | 2017-11-03 | 2019-05-09 | 한국과학기술연구원 | Diamine compound, polyamic acid prepared therefrom, polyimide prepared therefrom, and polyimide film including polyimde |
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