JPS6468732A - Driving method for optical modulating element - Google Patents

Driving method for optical modulating element

Info

Publication number
JPS6468732A
JPS6468732A JP22515987A JP22515987A JPS6468732A JP S6468732 A JPS6468732 A JP S6468732A JP 22515987 A JP22515987 A JP 22515987A JP 22515987 A JP22515987 A JP 22515987A JP S6468732 A JPS6468732 A JP S6468732A
Authority
JP
Japan
Prior art keywords
stable state
voltage
image
voltage application
picture elements
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
JP22515987A
Other languages
Japanese (ja)
Inventor
Shuzo Kaneko
Makoto Kojima
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 JP22515987A priority Critical patent/JPS6468732A/en
Publication of JPS6468732A publication Critical patent/JPS6468732A/en
Pending legal-status Critical Current

Links

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  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

PURPOSE:To obtain the driving method matching with gradation representation by applying a 1st voltage which orients respective picture elements in an area where an image is written in a 1st stable state, a 2nd voltage which orients them to a 2nd stable state, and a 3rd voltage for writing an image in the 1st stable state again. CONSTITUTION:When a ferroelectric liquid crystal cell 11 of such matrix picture element structure that bistable ferroelectric liquid crystal is sandwiched between a scanning electrode group 12 and a signal electrode group 13 is driven, three steps are set for voltage application. In 1st voltage application, an entire surface writing step for orienting picture elements A-C including the image uniformly into the 1st stable state is carried out and in 2nd voltage application, an erasure step for inverting those picture elements A-C into the 2nd stable step is performed. Lastly, an image writing step for orienting the desired picture element A in the 1st stable state again is carried out in 3rd voltage application. Consequently, the 'light' or 'dark' state is not inverted at the time of fast switching and this method is suitable to the gradation representation.
JP22515987A 1987-09-10 1987-09-10 Driving method for optical modulating element Pending JPS6468732A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22515987A JPS6468732A (en) 1987-09-10 1987-09-10 Driving method for optical modulating element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22515987A JPS6468732A (en) 1987-09-10 1987-09-10 Driving method for optical modulating element

Publications (1)

Publication Number Publication Date
JPS6468732A true JPS6468732A (en) 1989-03-14

Family

ID=16824867

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22515987A Pending JPS6468732A (en) 1987-09-10 1987-09-10 Driving method for optical modulating element

Country Status (1)

Country Link
JP (1) JPS6468732A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5200846A (en) * 1991-02-16 1993-04-06 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device having a ratio controlling means for providing gradated display levels
US6195139B1 (en) 1992-03-04 2001-02-27 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5200846A (en) * 1991-02-16 1993-04-06 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device having a ratio controlling means for providing gradated display levels
US7479939B1 (en) 1991-02-16 2009-01-20 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device
US6195139B1 (en) 1992-03-04 2001-02-27 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device
US6618105B2 (en) 1992-03-04 2003-09-09 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device
US7123320B2 (en) 1992-03-04 2006-10-17 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device
US8035773B2 (en) 1992-03-04 2011-10-11 Semiconductor Energy Laboratory Co., Ltd. Electro-optical device

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