EP0435701A3 - Display control method and apparatus for ferroelectric liquid crystal panel - Google Patents

Display control method and apparatus for ferroelectric liquid crystal panel Download PDF

Info

Publication number
EP0435701A3
EP0435701A3 EP19900314433 EP90314433A EP0435701A3 EP 0435701 A3 EP0435701 A3 EP 0435701A3 EP 19900314433 EP19900314433 EP 19900314433 EP 90314433 A EP90314433 A EP 90314433A EP 0435701 A3 EP0435701 A3 EP 0435701A3
Authority
EP
European Patent Office
Prior art keywords
liquid crystal
control method
display control
crystal panel
ferroelectric liquid
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
EP19900314433
Other versions
EP0435701B1 (en
EP0435701A2 (en
Inventor
Takaji Numao
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Publication of EP0435701A2 publication Critical patent/EP0435701A2/en
Publication of EP0435701A3 publication Critical patent/EP0435701A3/en
Application granted granted Critical
Publication of EP0435701B1 publication Critical patent/EP0435701B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3622—Control of matrices with row and column drivers using a passive matrix
    • G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/04—Partial updating of the display screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/06—Details of flat display driving waveforms
EP90314433A 1989-12-29 1990-12-28 Display control method and apparatus for ferroelectric liquid crystal panel Expired - Lifetime EP0435701B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP342512/89 1989-12-29
JP1342512A JPH03203776A (en) 1989-12-29 1989-12-29 Display controller for ferroelectric liquid crystal panel

Publications (3)

Publication Number Publication Date
EP0435701A2 EP0435701A2 (en) 1991-07-03
EP0435701A3 true EP0435701A3 (en) 1992-08-26
EP0435701B1 EP0435701B1 (en) 1995-10-25

Family

ID=18354317

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90314433A Expired - Lifetime EP0435701B1 (en) 1989-12-29 1990-12-28 Display control method and apparatus for ferroelectric liquid crystal panel

Country Status (4)

Country Link
EP (1) EP0435701B1 (en)
JP (1) JPH03203776A (en)
KR (1) KR940003428B1 (en)
DE (1) DE69023215T2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR920006903A (en) * 1990-09-27 1992-04-28 쯔지 하루오 Control Method and Display Control Device of LCD
JP3251064B2 (en) * 1991-11-07 2002-01-28 シャープ株式会社 LCD panel display controller
JP2996564B2 (en) * 1991-11-08 2000-01-11 シャープ株式会社 Driving method of liquid crystal panel
ATE171808T1 (en) * 1992-07-31 1998-10-15 Canon Kk DISPLAY CONTROL DEVICE
DE69421832D1 (en) * 1993-01-11 2000-01-05 Canon Kk Color display device
JP3222691B2 (en) * 1994-07-04 2001-10-29 キヤノン株式会社 Change line detection apparatus and method
JP3900663B2 (en) * 1997-06-25 2007-04-04 ソニー株式会社 Optical spatial modulation element and image display device
JP2000182508A (en) 1998-12-16 2000-06-30 Sony Corp Field emission type cathode, electron emitting device, and manufacture of electron emitting device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167398A2 (en) * 1984-07-05 1986-01-08 Seiko Instruments Inc. Ferro-electric liquid crystal electro-optical device
EP0306822A2 (en) * 1987-08-31 1989-03-15 Sharp Kabushiki Kaisha Display system for ferroelectric liquid crystal
EP0368117A2 (en) * 1988-10-31 1990-05-16 Canon Kabushiki Kaisha Display system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0167398A2 (en) * 1984-07-05 1986-01-08 Seiko Instruments Inc. Ferro-electric liquid crystal electro-optical device
EP0306822A2 (en) * 1987-08-31 1989-03-15 Sharp Kabushiki Kaisha Display system for ferroelectric liquid crystal
EP0368117A2 (en) * 1988-10-31 1990-05-16 Canon Kabushiki Kaisha Display system

Also Published As

Publication number Publication date
JPH03203776A (en) 1991-09-05
KR940003428B1 (en) 1994-04-22
EP0435701B1 (en) 1995-10-25
KR910013036A (en) 1991-08-08
EP0435701A2 (en) 1991-07-03
DE69023215T2 (en) 1996-04-25
DE69023215D1 (en) 1995-11-30

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