JPS5694331A - Liquid crystal color display body - Google Patents

Liquid crystal color display body

Info

Publication number
JPS5694331A
JPS5694331A JP17306879A JP17306879A JPS5694331A JP S5694331 A JPS5694331 A JP S5694331A JP 17306879 A JP17306879 A JP 17306879A JP 17306879 A JP17306879 A JP 17306879A JP S5694331 A JPS5694331 A JP S5694331A
Authority
JP
Japan
Prior art keywords
liquid crystal
rotatory
cholesteric liquid
temp
voltage
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
JP17306879A
Other languages
Japanese (ja)
Inventor
Norihisa Okamoto
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 JP17306879A priority Critical patent/JPS5694331A/en
Publication of JPS5694331A publication Critical patent/JPS5694331A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)

Abstract

PURPOSE: To diminish the temp. change of display characteristics such as transfer voltage, contrast and the like by containing suitable amounts of a dextro-rotatory cholesteric liquid crystal and a levo-rotatory cholesteric liquid crystal and a dichromatic dye in a cholesteric liquid crystal of positive dielectric anisotropy.
CONSTITUTION: An L type dichromatic dye 5 is dissolved in a cholesteric liquid crystal of positive dielectric anisotropy, and further a mixture of a suitable ratio of levo-rotatory and dextro-rotatory cholesteric liquid crystals is added for the purpose of temp. compensation. When no voltage is applied between transparent electrodes 3, 3 in this arrangement, the liquid crystal molecules 4 in both display part and nondisplay part are parallel to the substrates and show a dark color. When voltage is applied, the liquid crystal molecules 4 and dye 5 orient perpendicularly to the substrate surfaces, then the display part is dropped out and is displayed distinctly with respect to the dark color of the nondisplay part. The voltage change by temp. is decreased by the inclusion of the levo- and dextro-rotatory liquid crystals, and this display body is suited for use where temp. change is significant, such as automotive parts.
COPYRIGHT: (C)1981,JPO&Japio
JP17306879A 1979-12-27 1979-12-27 Liquid crystal color display body Pending JPS5694331A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17306879A JPS5694331A (en) 1979-12-27 1979-12-27 Liquid crystal color display body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17306879A JPS5694331A (en) 1979-12-27 1979-12-27 Liquid crystal color display body

Publications (1)

Publication Number Publication Date
JPS5694331A true JPS5694331A (en) 1981-07-30

Family

ID=15953607

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17306879A Pending JPS5694331A (en) 1979-12-27 1979-12-27 Liquid crystal color display body

Country Status (1)

Country Link
JP (1) JPS5694331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04121711A (en) * 1990-09-13 1992-04-22 Canon Inc liquid crystal element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04121711A (en) * 1990-09-13 1992-04-22 Canon Inc liquid crystal element

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