JPS55140818A - Phase transition type liquid crystal display device and its manufacture - Google Patents

Phase transition type liquid crystal display device and its manufacture

Info

Publication number
JPS55140818A
JPS55140818A JP4930379A JP4930379A JPS55140818A JP S55140818 A JPS55140818 A JP S55140818A JP 4930379 A JP4930379 A JP 4930379A JP 4930379 A JP4930379 A JP 4930379A JP S55140818 A JPS55140818 A JP S55140818A
Authority
JP
Japan
Prior art keywords
crystal
light scattering
liq
state
display device
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
JP4930379A
Other languages
Japanese (ja)
Other versions
JPS5842446B2 (en
Inventor
Masaaki Taguchi
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 Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP54049303A priority Critical patent/JPS5842446B2/en
Publication of JPS55140818A publication Critical patent/JPS55140818A/en
Publication of JPS5842446B2 publication Critical patent/JPS5842446B2/en
Expired legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a negative type display device requiring an electric field applying means only at the display pattern section by using a light scattering accumulation state resulting from thermo-optical effect at the background of display.
CONSTITUTION: Transparent electrode 2 and oriented film 5 are formed on glass substrate 1. Nematic-cholesteric mixed liq. crystals 4a, 4b are held between a pair of substrates 1, heated once to the transition temp. to the liq. phase or above, and cooled to ordinary temp. to obtain the title device. Crystals 4a, 4b are the same liq. crystal, yet the portion between electrodes 2, 2 is regarded as crystal 4b, and the other portion as crystal 4a. The portion of crystal 4a is maintained at a light scattering accumulation state, and by applying a voltage crystal 4b of the voltage-applied portion becomes of a focal conical light scattering state. By suitably selecting the oriented film and the liq. crystal composition, however, the above-mentioned light scattering states can be made alike to each other, and negative type display can be accomplished at a transparent state using the light scattering state as the background.
COPYRIGHT: (C)1980,JPO&Japio
JP54049303A 1979-04-20 1979-04-20 Phase change type liquid crystal display device Expired JPS5842446B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54049303A JPS5842446B2 (en) 1979-04-20 1979-04-20 Phase change type liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54049303A JPS5842446B2 (en) 1979-04-20 1979-04-20 Phase change type liquid crystal display device

Publications (2)

Publication Number Publication Date
JPS55140818A true JPS55140818A (en) 1980-11-04
JPS5842446B2 JPS5842446B2 (en) 1983-09-20

Family

ID=12827164

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54049303A Expired JPS5842446B2 (en) 1979-04-20 1979-04-20 Phase change type liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS5842446B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153936A (en) * 1982-03-08 1983-09-13 Dainippon Printing Co Ltd Image processing method
JPS61252529A (en) * 1985-05-01 1986-11-10 Csk Corp Liquid crystal memory
JPS61252530A (en) * 1985-05-01 1986-11-10 Csk Corp Electrode construction for liquid crystal memory
JPS6378127A (en) * 1986-09-20 1988-04-08 Fujitsu Ltd Phase transition type liquid crystal element
JPS63106623A (en) * 1986-10-23 1988-05-11 Fujitsu Ltd Liquid crystal display element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871660A (en) * 1971-12-28 1973-09-27
JPS5210693A (en) * 1975-07-16 1977-01-27 Matsushita Electric Ind Co Ltd Crystalline liquid indicator
JPS5371074U (en) * 1976-11-17 1978-06-14

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4871660A (en) * 1971-12-28 1973-09-27
JPS5210693A (en) * 1975-07-16 1977-01-27 Matsushita Electric Ind Co Ltd Crystalline liquid indicator
JPS5371074U (en) * 1976-11-17 1978-06-14

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58153936A (en) * 1982-03-08 1983-09-13 Dainippon Printing Co Ltd Image processing method
JPS61252529A (en) * 1985-05-01 1986-11-10 Csk Corp Liquid crystal memory
JPS61252530A (en) * 1985-05-01 1986-11-10 Csk Corp Electrode construction for liquid crystal memory
JPS6378127A (en) * 1986-09-20 1988-04-08 Fujitsu Ltd Phase transition type liquid crystal element
JPS63106623A (en) * 1986-10-23 1988-05-11 Fujitsu Ltd Liquid crystal display element

Also Published As

Publication number Publication date
JPS5842446B2 (en) 1983-09-20

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