JPS5674224A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS5674224A
JPS5674224A JP15086079A JP15086079A JPS5674224A JP S5674224 A JPS5674224 A JP S5674224A JP 15086079 A JP15086079 A JP 15086079A JP 15086079 A JP15086079 A JP 15086079A JP S5674224 A JPS5674224 A JP S5674224A
Authority
JP
Japan
Prior art keywords
liquid crystal
twist angle
density
angle
host
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
JP15086079A
Other languages
Japanese (ja)
Inventor
Kanemitsu Kubota
Keiji Jinguu
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
Epson Corp
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
Epson Corp
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, Epson Corp filed Critical Seiko Epson Corp
Priority to JP15086079A priority Critical patent/JPS5674224A/en
Publication of JPS5674224A publication Critical patent/JPS5674224A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To lower the driving voltage without degrading contrast much, by setting the angle between upper and lower substrates in the orientation direction to a specific angle and by setting the twist angle to 360° approximately, in the guest host type liquid crystal display device.
CONSTITUTION: Host liquid crystal molecules 3 and 5 near glass substrates 1 and 2 are directed toward walls in parallel with substrate surfaces, and middle liquid crystal molecules have the direction changed from host liquid crystal molecule 3 gradually and are rotated at 360° approximately and are connected to host liquid crystal molecule 5. Bicolor coloring matters 6 are twisted similary. Though the twist angle can be changed by changing the density of cholesteric liquid crystals, the driving voltage becomes high according to the density of cholesteric liquid crystals. Next, the contrast ratio is 3.2, 5.3 and 6.1 for twist angle 180°, 360°, and 540° respectively, and the contrast ratio is not changed considerably for 360° or more. Consequently, the horizontal orientation where the cholesteric liquid crystal density is 0.9W1.4% and the twist angle is 360°C is desirbale.
COPYRIGHT: (C)1981,JPO&Japio
JP15086079A 1979-11-21 1979-11-21 Liquid crystal display device Pending JPS5674224A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15086079A JPS5674224A (en) 1979-11-21 1979-11-21 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15086079A JPS5674224A (en) 1979-11-21 1979-11-21 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS5674224A true JPS5674224A (en) 1981-06-19

Family

ID=15505953

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15086079A Pending JPS5674224A (en) 1979-11-21 1979-11-21 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5674224A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6141123A (en) * 1984-08-01 1986-02-27 Sharp Corp Glare proof mirror of liquid crystal type

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6141123A (en) * 1984-08-01 1986-02-27 Sharp Corp Glare proof mirror of liquid crystal type

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