JPS6461728A - Liquid crystal light valve - Google Patents

Liquid crystal light valve

Info

Publication number
JPS6461728A
JPS6461728A JP21883287A JP21883287A JPS6461728A JP S6461728 A JPS6461728 A JP S6461728A JP 21883287 A JP21883287 A JP 21883287A JP 21883287 A JP21883287 A JP 21883287A JP S6461728 A JPS6461728 A JP S6461728A
Authority
JP
Japan
Prior art keywords
liquid crystal
voltage
impressed
electrodes
dynamic scattering
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
JP21883287A
Other languages
Japanese (ja)
Other versions
JP2537637B2 (en
Inventor
Tomio Sonehara
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
Original Assignee
Seiko 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 filed Critical Seiko Epson Corp
Priority to JP62218832A priority Critical patent/JP2537637B2/en
Publication of JPS6461728A publication Critical patent/JPS6461728A/en
Application granted granted Critical
Publication of JP2537637B2 publication Critical patent/JP2537637B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/135—Liquid crystal cells structurally associated with a photoconducting or a ferro-electric layer, the properties of which can be optically or electrically varied

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To enable low-energy optical writing and to speed up writing by using a p type smectic liquid crystal contg. an additive for generating dynamic scattering. CONSTITUTION:The p type smectic liquid crystal 201 added with the additive for dynamic scattering (e.g.: quaternary ammonium salt of carboxylic acid) is sealed between two sheets of transparent substrates 105 provided with transparent electrodes 104. A photoconductor layer 101 and a photosepn. mirror 102 are laminated on one electrode. a dichromatic dye 502 is preferably added into the liquid crystal. The dynamic scattering state is maintained even after removal of a relatively high voltage of a low frequency and an erasing state is obtd. if said voltage is impressed between the electrodes by a driving power supply 107. The liquid crystal molecules in a region 501 irradiated with writing light 108 are arrayed when the voltage of the frequency to obviate the generation of the scattering is impressed between the electrodes. This display state is maintained even after the impressed voltage is decreased to zero.
JP62218832A 1987-09-01 1987-09-01 Liquid crystal light valve driving method Expired - Lifetime JP2537637B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62218832A JP2537637B2 (en) 1987-09-01 1987-09-01 Liquid crystal light valve driving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62218832A JP2537637B2 (en) 1987-09-01 1987-09-01 Liquid crystal light valve driving method

Publications (2)

Publication Number Publication Date
JPS6461728A true JPS6461728A (en) 1989-03-08
JP2537637B2 JP2537637B2 (en) 1996-09-25

Family

ID=16726040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62218832A Expired - Lifetime JP2537637B2 (en) 1987-09-01 1987-09-01 Liquid crystal light valve driving method

Country Status (1)

Country Link
JP (1) JP2537637B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008160A1 (en) * 1990-10-24 1992-05-14 Greyhawk Systems, Inc. Apparatus for and method of operation of smectic liquid crystal light valve
JPH0530504U (en) * 1991-10-03 1993-04-23 住友建機株式会社 Brake circuit device for hydraulic equipment
JP2021018375A (en) * 2019-07-23 2021-02-15 大日本印刷株式会社 Liquid crystal lighting control apparatus, power-supply unit and driving method of liquid crystal lighting control film

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134657A (en) * 1978-04-11 1979-10-19 Nec Corp Light bulb device of projection type light writing liquid crystal and driving method thereof
JPS6289929A (en) * 1985-10-16 1987-04-24 Canon Inc Method and device for optical recording

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54134657A (en) * 1978-04-11 1979-10-19 Nec Corp Light bulb device of projection type light writing liquid crystal and driving method thereof
JPS6289929A (en) * 1985-10-16 1987-04-24 Canon Inc Method and device for optical recording

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008160A1 (en) * 1990-10-24 1992-05-14 Greyhawk Systems, Inc. Apparatus for and method of operation of smectic liquid crystal light valve
JPH0530504U (en) * 1991-10-03 1993-04-23 住友建機株式会社 Brake circuit device for hydraulic equipment
JP2021018375A (en) * 2019-07-23 2021-02-15 大日本印刷株式会社 Liquid crystal lighting control apparatus, power-supply unit and driving method of liquid crystal lighting control film

Also Published As

Publication number Publication date
JP2537637B2 (en) 1996-09-25

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Legal Events

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