JPS57117579A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS57117579A
JPS57117579A JP338981A JP338981A JPS57117579A JP S57117579 A JPS57117579 A JP S57117579A JP 338981 A JP338981 A JP 338981A JP 338981 A JP338981 A JP 338981A JP S57117579 A JPS57117579 A JP S57117579A
Authority
JP
Japan
Prior art keywords
liquid crystal
display device
phenylcyclohexyl
straight chain
chain alkyl
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
JP338981A
Other languages
Japanese (ja)
Other versions
JPS647116B2 (en
Inventor
Tomio Sonehara
Norihisa Okamoto
Sadao Kanbe
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha 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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP338981A priority Critical patent/JPS57117579A/en
Publication of JPS57117579A publication Critical patent/JPS57117579A/en
Publication of JPS647116B2 publication Critical patent/JPS647116B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Substances (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE: To provide the titled stable device having sufficiently high response with low voltage, by using a liquid crystal composition obtained by adding a specific compound to a phenylcyclohexyl carbonate liquid crystal used as a nematic liquid crystal containing dichroic dye and having negative dielectric anisotropy.
CONSTITUTION: A liquid crystal composition consisting of a phenylcyclohexyl carbonate liquid crystal of formulaI(R1 and R2 are 1W6C straight chain alkyl) mixed with a novel compound of formula II (R3 and R4 are straight chain alkyl or alkoxy) and pref. further mixed with an optically active substance or a cholesteric liquid crystal, is used in a guest-host liquid crystal display device composed of e.g. a pair of glass plates 1, 2 having transparent electrode subjected to the perpendicular orientation treatment and a nematic liquid crystal 4 having negative dielectric anisotropy and containing a dichroic dye 3 as a solute. The display device displays information taking advantage of the change in the density and tone of color caused by the application or removal of an electric field between said electrodes.
USE: Wrist watch and electronic calculator.
COPYRIGHT: (C)1982,JPO&Japio
JP338981A 1981-01-13 1981-01-13 Liquid crystal display device Granted JPS57117579A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP338981A JPS57117579A (en) 1981-01-13 1981-01-13 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP338981A JPS57117579A (en) 1981-01-13 1981-01-13 Liquid crystal display device

Publications (2)

Publication Number Publication Date
JPS57117579A true JPS57117579A (en) 1982-07-22
JPS647116B2 JPS647116B2 (en) 1989-02-07

Family

ID=11555999

Family Applications (1)

Application Number Title Priority Date Filing Date
JP338981A Granted JPS57117579A (en) 1981-01-13 1981-01-13 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS57117579A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4559161A (en) * 1982-02-18 1985-12-17 Kabushiki Kaisha Suwa Seikosha Liquid crystal composition
US4609256A (en) * 1981-07-24 1986-09-02 Seiko Epson Corporation Liquid crystal optical device
JPS62154431U (en) * 1986-03-25 1987-09-30
US7511776B2 (en) * 1996-02-14 2009-03-31 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal electro-optical device and method of driving the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4609256A (en) * 1981-07-24 1986-09-02 Seiko Epson Corporation Liquid crystal optical device
US4559161A (en) * 1982-02-18 1985-12-17 Kabushiki Kaisha Suwa Seikosha Liquid crystal composition
JPS62154431U (en) * 1986-03-25 1987-09-30
US7511776B2 (en) * 1996-02-14 2009-03-31 Semiconductor Energy Laboratory Co., Ltd. Liquid crystal electro-optical device and method of driving the same

Also Published As

Publication number Publication date
JPS647116B2 (en) 1989-02-07

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