EP0464807A3 - Circuit generating driving signals for display - Google Patents

Circuit generating driving signals for display Download PDF

Info

Publication number
EP0464807A3
EP0464807A3 EP19910111067 EP91111067A EP0464807A3 EP 0464807 A3 EP0464807 A3 EP 0464807A3 EP 19910111067 EP19910111067 EP 19910111067 EP 91111067 A EP91111067 A EP 91111067A EP 0464807 A3 EP0464807 A3 EP 0464807A3
Authority
EP
European Patent Office
Prior art keywords
display
driving signals
circuit generating
generating driving
circuit
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
EP19910111067
Other versions
EP0464807A2 (en
EP0464807B1 (en
Inventor
Fabio Zuliani
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.)
SELECO SpA
Original Assignee
SELECO SpA
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 SELECO SpA filed Critical SELECO SpA
Publication of EP0464807A2 publication Critical patent/EP0464807A2/en
Publication of EP0464807A3 publication Critical patent/EP0464807A3/en
Application granted granted Critical
Publication of EP0464807B1 publication Critical patent/EP0464807B1/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
    • 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
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G09G3/3651—Control of matrices with row and column drivers using an active matrix using multistable liquid crystals, 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
    • 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
    • G09G2310/06—Details of flat display driving waveforms

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Liquid Crystal (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Electric Clocks (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • Selective Calling Equipment (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
EP91111067A 1990-07-06 1991-07-04 Circuit generating driving signals for display Expired - Lifetime EP0464807B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT67501A IT1240381B (en) 1990-07-06 1990-07-06 PILOTING SIGNAL CIRCUIT FOR DISPLAY
IT6750190 1990-07-06

Publications (3)

Publication Number Publication Date
EP0464807A2 EP0464807A2 (en) 1992-01-08
EP0464807A3 true EP0464807A3 (en) 1992-07-01
EP0464807B1 EP0464807B1 (en) 1995-10-18

Family

ID=11302951

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111067A Expired - Lifetime EP0464807B1 (en) 1990-07-06 1991-07-04 Circuit generating driving signals for display

Country Status (4)

Country Link
EP (1) EP0464807B1 (en)
DE (1) DE69113879T2 (en)
ES (1) ES2081394T3 (en)
IT (1) IT1240381B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2313223A (en) * 1996-05-17 1997-11-19 Sharp Kk Liquid crystal device
GB2313224A (en) 1996-05-17 1997-11-19 Sharp Kk Ferroelectric liquid crystal device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2102179A (en) * 1981-06-12 1983-01-26 Interstate Electronics Corp Brightness control for an ac plasma panel
EP0132539A2 (en) * 1983-06-29 1985-02-13 International Business Machines Corporation Flicker reduction in a display system with screen memory
GB2207272A (en) * 1987-07-18 1989-01-25 Stc Plc Addressing liquid crystal cells
US4819186A (en) * 1987-01-30 1989-04-04 Casio Computer Co., Ltd. Waveform generating apparatus for driving liquid crystal device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0310217A (en) * 1989-06-07 1991-01-17 Seiko Epson Corp Method for driving liquid crystal device
JPH0331817A (en) * 1989-06-29 1991-02-12 Seiko Epson Corp Driving method for liquid crystal device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2102179A (en) * 1981-06-12 1983-01-26 Interstate Electronics Corp Brightness control for an ac plasma panel
EP0132539A2 (en) * 1983-06-29 1985-02-13 International Business Machines Corporation Flicker reduction in a display system with screen memory
US4819186A (en) * 1987-01-30 1989-04-04 Casio Computer Co., Ltd. Waveform generating apparatus for driving liquid crystal device
GB2207272A (en) * 1987-07-18 1989-01-25 Stc Plc Addressing liquid crystal cells

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 122 (P-1184)26 March 1991 & JP-A-3 010 217 ( SEIKO EPSON ) 17 January 1991 *
PATENT ABSTRACTS OF JAPAN vol. 15, no. 166 (P-1195)25 April 1991 & JP-A-3 031 817 ( SEIKO EPSON ) 12 February 1991 *

Also Published As

Publication number Publication date
ES2081394T3 (en) 1996-03-01
EP0464807A2 (en) 1992-01-08
IT9067501A1 (en) 1992-01-06
IT9067501A0 (en) 1990-07-06
DE69113879T2 (en) 1996-04-11
EP0464807B1 (en) 1995-10-18
IT1240381B (en) 1993-12-10
DE69113879D1 (en) 1995-11-23

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