JPH03243915A - Liquid crystal light valve - Google Patents

Liquid crystal light valve

Info

Publication number
JPH03243915A
JPH03243915A JP3981190A JP3981190A JPH03243915A JP H03243915 A JPH03243915 A JP H03243915A JP 3981190 A JP3981190 A JP 3981190A JP 3981190 A JP3981190 A JP 3981190A JP H03243915 A JPH03243915 A JP H03243915A
Authority
JP
Japan
Prior art keywords
liquid crystal
specified
signals
impressing
electrodes
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
JP3981190A
Other languages
Japanese (ja)
Other versions
JP2681528B2 (en
Inventor
Akio Yoshida
Original Assignee
Canon 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 Canon Inc filed Critical Canon Inc
Priority to JP3981190A priority Critical patent/JP2681528B2/en
Publication of JPH03243915A publication Critical patent/JPH03243915A/en
Application granted granted Critical
Publication of JP2681528B2 publication Critical patent/JP2681528B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

PURPOSE: To prevent the decay of a luminance level by providing an active element for impressing a voltage by each picture element onto a ferroelectric liquid crystal element and driving the element and a means for impressing the voltage to the ferroelectric liquid crystal element through this element in such a way that this means are alternately impressed with writing signals and non-display signals at specified cycles and specified periods.
CONSTITUTION: A tantalum oxide film 12 is formed on a glass substrate 10 for a liquid crystal having a transparent conductive film 11 and further an oriented film 13 is formed. Thin-film transistors consisting of gate electrodes 17, gate insulating films 18, source electrodes 20, drain electrodes 22, and a-Si semiconductor layers 19 and electrodes 16 for display connected thereto are disposed on another substrate 22. The tantalum oxide film 15 is disposed thereon in order to provide the channel protection of the TR parts and further, an oriented film 14 for the liquid crystal is formed thereon. Writing signals and non-display signals are alternately impressed at specified cycles and specified periods by the voltage impressing means. The transmittance of a specified quantity for the given signals is obtd. over a long period of time without the decay of the luminance in this way. Since the response speed is high, the follow-up characteristic is good and the images of good sharpness are obtd.
COPYRIGHT: (C)1991,JPO&Japio
JP3981190A 1990-02-22 1990-02-22 Liquid crystal light valve device Expired - Fee Related JP2681528B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3981190A JP2681528B2 (en) 1990-02-22 1990-02-22 Liquid crystal light valve device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3981190A JP2681528B2 (en) 1990-02-22 1990-02-22 Liquid crystal light valve device

Publications (2)

Publication Number Publication Date
JPH03243915A true JPH03243915A (en) 1991-10-30
JP2681528B2 JP2681528B2 (en) 1997-11-26

Family

ID=12563353

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3981190A Expired - Fee Related JP2681528B2 (en) 1990-02-22 1990-02-22 Liquid crystal light valve device

Country Status (1)

Country Link
JP (1) JP2681528B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0618852A (en) * 1992-06-30 1994-01-28 Sharp Corp Driving method for ferroelectric liquid crystal display device
US5465168A (en) * 1992-01-29 1995-11-07 Sharp Kabushiki Kaisha Gradation driving method for bistable ferroelectric liquid crystal using effective cone angle in both states
US5691783A (en) * 1993-06-30 1997-11-25 Sharp Kabushiki Kaisha Liquid crystal display device and method for driving the same
US6809717B2 (en) 1998-06-24 2004-10-26 Canon Kabushiki Kaisha Display apparatus, liquid crystal display apparatus and driving method for display apparatus
JP2008107634A (en) * 2006-10-26 2008-05-08 Dainippon Printing Co Ltd Liquid crystal display element
US8253674B2 (en) 2005-03-11 2012-08-28 Fujitsu Limited Drive method for liquid crystal display device and liquid crystal display device

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006114865A1 (en) 2005-04-19 2006-11-02 Fujitsu Limited Liquid crystal display device and orientation processing method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5465168A (en) * 1992-01-29 1995-11-07 Sharp Kabushiki Kaisha Gradation driving method for bistable ferroelectric liquid crystal using effective cone angle in both states
JPH0618852A (en) * 1992-06-30 1994-01-28 Sharp Corp Driving method for ferroelectric liquid crystal display device
US5691783A (en) * 1993-06-30 1997-11-25 Sharp Kabushiki Kaisha Liquid crystal display device and method for driving the same
US6809717B2 (en) 1998-06-24 2004-10-26 Canon Kabushiki Kaisha Display apparatus, liquid crystal display apparatus and driving method for display apparatus
US7427974B2 (en) 1998-06-24 2008-09-23 Canon Kabushiki Kaisha Display apparatus, liquid crystal display apparatus and driving method for display apparatus
US8253674B2 (en) 2005-03-11 2012-08-28 Fujitsu Limited Drive method for liquid crystal display device and liquid crystal display device
JP2008107634A (en) * 2006-10-26 2008-05-08 Dainippon Printing Co Ltd Liquid crystal display element

Also Published As

Publication number Publication date
JP2681528B2 (en) 1997-11-26

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