JPS6433521A - Liquid crystal optical modulator - Google Patents

Liquid crystal optical modulator

Info

Publication number
JPS6433521A
JPS6433521A JP18971087A JP18971087A JPS6433521A JP S6433521 A JPS6433521 A JP S6433521A JP 18971087 A JP18971087 A JP 18971087A JP 18971087 A JP18971087 A JP 18971087A JP S6433521 A JPS6433521 A JP S6433521A
Authority
JP
Japan
Prior art keywords
state
liquid crystal
electrodes
executed
directors
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
JP18971087A
Other languages
Japanese (ja)
Other versions
JP2661051B2 (en
Inventor
Yukitoshi Okubo
Toru Takahashi
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.)
Canon Inc
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 JP62189710A priority Critical patent/JP2661051B2/en
Publication of JPS6433521A publication Critical patent/JPS6433521A/en
Application granted granted Critical
Publication of JP2661051B2 publication Critical patent/JP2661051B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Liquid Crystal (AREA)

Abstract

PURPOSE:To obtain a steep threshold characteristic by using a memory type liquid crystal for a liquid crystal and generating or annihilating fine orientation regions of the directors different from each other between transparent conductive films, thereby executing optical modulation. CONSTITUTION:Driving of a cell is executed by impressing a positive voltage thereto in such a manner that the electric field exceeding the threshold is generated in both of stripped electrodes 4 and a 1st common electrode 5 if the 2nd common electrode 1 is assumed to be ground potential. As a result, the directors of the liquid crystal molecules are arrayed and this state is determined as the 1st state. Only the stripped electrodes 4 face upward and the oriented state having the molecule directors 23 is obtd. if both the electrodes 1 and 5 are grounded and the negative voltage exceeding the threshold is impressed only to the striped electrodes 4. This state is determined as the 2nd state. The 1st state is the state in which the orientation of the liquid crystal molecules is homogeneous and the transparent state in which incident light transmits through the liquid crystal as it is. On the other hand, the 2nd state is the state in which the incident light diffracts and scatters. The full surface erasing is, therefore, executed by using the 1st state and writing is executed in the 2nd state.
JP62189710A 1987-07-29 1987-07-29 Liquid crystal light modulator Expired - Fee Related JP2661051B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62189710A JP2661051B2 (en) 1987-07-29 1987-07-29 Liquid crystal light modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62189710A JP2661051B2 (en) 1987-07-29 1987-07-29 Liquid crystal light modulator

Publications (2)

Publication Number Publication Date
JPS6433521A true JPS6433521A (en) 1989-02-03
JP2661051B2 JP2661051B2 (en) 1997-10-08

Family

ID=16245895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62189710A Expired - Fee Related JP2661051B2 (en) 1987-07-29 1987-07-29 Liquid crystal light modulator

Country Status (1)

Country Link
JP (1) JP2661051B2 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5604613A (en) * 1992-07-30 1997-02-18 Canon Kabushiki Kaisha Liquid crystal display device with pixels having stripe-shaped projections with equal heights
JP2000081625A (en) * 1998-07-01 2000-03-21 Toppan Printing Co Ltd Liquid crystal panel substrate and liquid crystal panel using the same
DE4042747B4 (en) * 1990-01-09 2009-10-08 Merck Patent Gmbh Electro-optical liquid crystal switching element
WO2012102272A1 (en) * 2011-01-26 2012-08-02 シャープ株式会社 Light-polarizing element
WO2013013429A1 (en) * 2011-07-26 2013-01-31 深圳市华星光电技术有限公司 Liquid crystal display panel and display device applying same
US8797489B2 (en) 2011-07-26 2014-08-05 Shenzhen China Star Optoelectronics Technology Co., Ltd. Liquid crystal display panel and display apparatus using the same
WO2014181539A1 (en) * 2013-05-08 2014-11-13 カラーリンク・ジャパン 株式会社 Optical device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517947A (en) * 1974-05-28 1976-01-22 Xerox Corp Kosennokahenkaisetsuhoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS517947A (en) * 1974-05-28 1976-01-22 Xerox Corp Kosennokahenkaisetsuhoho

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4042747B4 (en) * 1990-01-09 2009-10-08 Merck Patent Gmbh Electro-optical liquid crystal switching element
US5604613A (en) * 1992-07-30 1997-02-18 Canon Kabushiki Kaisha Liquid crystal display device with pixels having stripe-shaped projections with equal heights
JP2000081625A (en) * 1998-07-01 2000-03-21 Toppan Printing Co Ltd Liquid crystal panel substrate and liquid crystal panel using the same
WO2012102272A1 (en) * 2011-01-26 2012-08-02 シャープ株式会社 Light-polarizing element
WO2013013429A1 (en) * 2011-07-26 2013-01-31 深圳市华星光电技术有限公司 Liquid crystal display panel and display device applying same
US8797489B2 (en) 2011-07-26 2014-08-05 Shenzhen China Star Optoelectronics Technology Co., Ltd. Liquid crystal display panel and display apparatus using the same
WO2014181539A1 (en) * 2013-05-08 2014-11-13 カラーリンク・ジャパン 株式会社 Optical device

Also Published As

Publication number Publication date
JP2661051B2 (en) 1997-10-08

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees