JPS55127520A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPS55127520A
JPS55127520A JP3439779A JP3439779A JPS55127520A JP S55127520 A JPS55127520 A JP S55127520A JP 3439779 A JP3439779 A JP 3439779A JP 3439779 A JP3439779 A JP 3439779A JP S55127520 A JPS55127520 A JP S55127520A
Authority
JP
Japan
Prior art keywords
liquid crystal
twist
voltage
crystal molecules
display element
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
Application number
JP3439779A
Other languages
Japanese (ja)
Inventor
Keiji Tsukamoto
Toshiro Yukinari
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.)
Citizen Watch Co Ltd
Kawaguchiko Seimitsu KK
Original Assignee
Citizen Watch Co Ltd
Kawaguchiko Seimitsu KK
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 Citizen Watch Co Ltd, Kawaguchiko Seimitsu KK filed Critical Citizen Watch Co Ltd
Priority to JP3439779A priority Critical patent/JPS55127520A/en
Publication of JPS55127520A publication Critical patent/JPS55127520A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)

Abstract

PURPOSE:To improve display characteristics by so arranging the element that liquid crystal molecules are twist-oriented between the upper and lower substrates of the liquid crystal display element, mutually orthogonally intersect at the upper and lower plate surfaces, have rotatory polarization and vary 180 deg. at the voltage application of more than the specified voltage and voltage non-application. CONSTITUTION:Optical-rotatory material is added into liquid crystal to make its twist orientation sprayed type twist orientation and the angle theta deg. of inclination of the interfaces 2, 3 of the upper and lower plate 15-40 deg.. It is so made that the twist angle of liquid crystal molecules 1 in the voltage non-applied state V=0 becomes nearly 90 deg. and when applied with more than specified voltage V>VX, the twist angle becomes nearly 270 deg.. As a result of this, the rise characteristics of the liquid crystal molecules becomes sharp, the stable orientation state may be maintained and response speed becomes fast, thus various characteristics are improved.
JP3439779A 1979-03-26 1979-03-26 Liquid crystal display element Pending JPS55127520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3439779A JPS55127520A (en) 1979-03-26 1979-03-26 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3439779A JPS55127520A (en) 1979-03-26 1979-03-26 Liquid crystal display element

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2559486A Division JPS61209420A (en) 1986-02-07 1986-02-07 Liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS55127520A true JPS55127520A (en) 1980-10-02

Family

ID=12413043

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3439779A Pending JPS55127520A (en) 1979-03-26 1979-03-26 Liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS55127520A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4579425A (en) * 1982-07-29 1986-04-01 Sharp Kabushiki Kaisha Multiplexable liquid crystal display with reduced hysteresis
US4596446A (en) * 1982-06-29 1986-06-24 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal devices with particular cholesteric pitch-cell thickness ratio
JPS61226730A (en) * 1985-03-30 1986-10-08 Sharp Corp Twisted nematic type liquid crystal display element
US4639090A (en) * 1984-05-30 1987-01-27 Commissariat A L'energie Atomique Liquid crystal dichroic display with a high brightness contrast
US4653865A (en) * 1985-04-05 1987-03-31 Hitachi, Ltd. Liquid crystal display device
US4664482A (en) * 1985-03-15 1987-05-12 Hitachi, Ltd. Liquid crystal display device having a chiral additive and angularly displaced polarizers
WO1997012275A1 (en) * 1995-09-26 1997-04-03 Chisso Corporation Homeotropic sprayed-nematic liquid crystal display device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50138851A (en) * 1974-04-24 1975-11-06
JPS50143557A (en) * 1974-02-21 1975-11-19
JPS50144455A (en) * 1974-04-11 1975-11-20
JPS52111740A (en) * 1976-03-16 1977-09-19 Oki Electric Ind Co Ltd Liquid crystal indicator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50143557A (en) * 1974-02-21 1975-11-19
JPS50144455A (en) * 1974-04-11 1975-11-20
JPS50138851A (en) * 1974-04-24 1975-11-06
JPS52111740A (en) * 1976-03-16 1977-09-19 Oki Electric Ind Co Ltd Liquid crystal indicator

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4596446A (en) * 1982-06-29 1986-06-24 The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland Liquid crystal devices with particular cholesteric pitch-cell thickness ratio
US4579425A (en) * 1982-07-29 1986-04-01 Sharp Kabushiki Kaisha Multiplexable liquid crystal display with reduced hysteresis
US4639090A (en) * 1984-05-30 1987-01-27 Commissariat A L'energie Atomique Liquid crystal dichroic display with a high brightness contrast
US4664482A (en) * 1985-03-15 1987-05-12 Hitachi, Ltd. Liquid crystal display device having a chiral additive and angularly displaced polarizers
JPS61226730A (en) * 1985-03-30 1986-10-08 Sharp Corp Twisted nematic type liquid crystal display element
US4653865A (en) * 1985-04-05 1987-03-31 Hitachi, Ltd. Liquid crystal display device
WO1997012275A1 (en) * 1995-09-26 1997-04-03 Chisso Corporation Homeotropic sprayed-nematic liquid crystal display device

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