DE69322154T2 - Verfahren zur Steuerung einer Flüssigkristallanzeigetafel - Google Patents

Verfahren zur Steuerung einer Flüssigkristallanzeigetafel

Info

Publication number
DE69322154T2
DE69322154T2 DE1993622154 DE69322154T DE69322154T2 DE 69322154 T2 DE69322154 T2 DE 69322154T2 DE 1993622154 DE1993622154 DE 1993622154 DE 69322154 T DE69322154 T DE 69322154T DE 69322154 T2 DE69322154 T2 DE 69322154T2
Authority
DE
Germany
Prior art keywords
controlling
liquid crystal
crystal display
display panel
panel
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.)
Expired - Fee Related
Application number
DE1993622154
Other languages
English (en)
Other versions
DE69322154D1 (de
Inventor
Yasukazu Hamano
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch Co Ltd
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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Publication of DE69322154D1 publication Critical patent/DE69322154D1/de
Application granted granted Critical
Publication of DE69322154T2 publication Critical patent/DE69322154T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G09G3/367—Control of matrices with row and column drivers with a nonlinear element in series with the liquid crystal cell, e.g. a diode, or M.I.M. element
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0204—Compensation of DC component across the pixels in flat panels
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2011—Display of intermediate tones by amplitude modulation
    • 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
    • G09G3/2007—Display of intermediate tones
    • G09G3/2014—Display of intermediate tones by modulation of the duration of a single pulse during which the logic level remains constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
DE1993622154 1993-04-08 1993-04-08 Verfahren zur Steuerung einer Flüssigkristallanzeigetafel Expired - Fee Related DE69322154T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19930302765 EP0619572B1 (de) 1993-04-08 1993-04-08 Verfahren zur Steuerung einer Flüssigkristallanzeigetafel

Publications (2)

Publication Number Publication Date
DE69322154D1 DE69322154D1 (de) 1998-12-24
DE69322154T2 true DE69322154T2 (de) 1999-07-01

Family

ID=8214379

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1993622154 Expired - Fee Related DE69322154T2 (de) 1993-04-08 1993-04-08 Verfahren zur Steuerung einer Flüssigkristallanzeigetafel

Country Status (2)

Country Link
EP (1) EP0619572B1 (de)
DE (1) DE69322154T2 (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9704149D0 (en) * 1996-08-16 1997-04-16 Philips Electronics Nv Active matrix display devices and methods of driving such

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5117298A (en) * 1988-09-20 1992-05-26 Nec Corporation Active matrix liquid crystal display with reduced flickers
DE68926032T2 (de) * 1988-12-29 1996-09-05 Seiko Instr Inc Ansteuersystem für ein Anzeigegerät
DE69220283T2 (de) * 1991-03-20 1997-10-30 Seiko Epson Corp Verfahren zum Treiben einer Flüssigkristallanzeige vom Aktivmatrixtyp

Also Published As

Publication number Publication date
DE69322154D1 (de) 1998-12-24
EP0619572A1 (de) 1994-10-12
EP0619572B1 (de) 1998-11-18

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: PATENTANWAELTE RUFF, WILHELM, BEIER, DAUSTER & PARTNER, 70173 STUTTGART

8339 Ceased/non-payment of the annual fee