JPS5525004A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPS5525004A
JPS5525004A JP9616578A JP9616578A JPS5525004A JP S5525004 A JPS5525004 A JP S5525004A JP 9616578 A JP9616578 A JP 9616578A JP 9616578 A JP9616578 A JP 9616578A JP S5525004 A JPS5525004 A JP S5525004A
Authority
JP
Japan
Prior art keywords
layer
substrates
liquid crystal
polybenzoimidazo
pyrolone
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.)
Granted
Application number
JP9616578A
Other languages
Japanese (ja)
Other versions
JPS5948363B2 (en
Inventor
Hisao Yokokura
Fumio Nakano
Tadashi Ito
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP53096165A priority Critical patent/JPS5948363B2/en
Publication of JPS5525004A publication Critical patent/JPS5525004A/en
Publication of JPS5948363B2 publication Critical patent/JPS5948363B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To obviate the production of induced domains despite frit sealing and improve durability against long-time current supply by forming the specific polybenzoimidazo pyrolone polymer layer as an orientation layer between the conductive film and liquid crystal layer of the liquid crystal display element.
CONSTITUTION: The polybenzoimidazo pyrolone of the formula, diamino dialkoxy carbonyl amino tetraphenyl compound and tetracarboxylic acid di-anhydride are reacted at an equal mole in a solvent such as of N, N-dimethyl acetamide or other, whereby the polymer solution is obtained. The solution prepared by diluting this is coated on substrates which have beforehand been formed with inorganic films of SiO2 and have the transparent electrodes composed mainly of In2O3, etc. thereon and is then heated, whereby the orientation layer is formed. Next, this layer is rubbed in one direction with cotton cloth or the like and glass frit is printed on the periphery of the substrates. Two sheets of such substrates are combined and the assembly is fired at 400 to 480°C, whereby the element is produced. Since the heat resistance of the polymer used is good, the element withstands firing of high temperature.
COPYRIGHT: (C)1980,JPO&Japio
JP53096165A 1978-08-09 1978-08-09 liquid crystal display element Expired JPS5948363B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53096165A JPS5948363B2 (en) 1978-08-09 1978-08-09 liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53096165A JPS5948363B2 (en) 1978-08-09 1978-08-09 liquid crystal display element

Publications (2)

Publication Number Publication Date
JPS5525004A true JPS5525004A (en) 1980-02-22
JPS5948363B2 JPS5948363B2 (en) 1984-11-26

Family

ID=14157715

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53096165A Expired JPS5948363B2 (en) 1978-08-09 1978-08-09 liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS5948363B2 (en)

Also Published As

Publication number Publication date
JPS5948363B2 (en) 1984-11-26

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