EP0992972A3 - Verfahren zur Einstellung der Helligkeit einer Zelle eines Flachdisplays - Google Patents

Verfahren zur Einstellung der Helligkeit einer Zelle eines Flachdisplays Download PDF

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Publication number
EP0992972A3
EP0992972A3 EP99119311A EP99119311A EP0992972A3 EP 0992972 A3 EP0992972 A3 EP 0992972A3 EP 99119311 A EP99119311 A EP 99119311A EP 99119311 A EP99119311 A EP 99119311A EP 0992972 A3 EP0992972 A3 EP 0992972A3
Authority
EP
European Patent Office
Prior art keywords
cell
adjusting
light intensity
flat panel
panel display
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.)
Withdrawn
Application number
EP99119311A
Other languages
English (en)
French (fr)
Other versions
EP0992972A2 (de
Inventor
Roland Dipl.-Ing. Bohl
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.)
Loewe Opta GmbH
Original Assignee
Loewe Opta GmbH
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 Loewe Opta GmbH filed Critical Loewe Opta GmbH
Publication of EP0992972A2 publication Critical patent/EP0992972A2/de
Publication of EP0992972A3 publication Critical patent/EP0992972A3/de
Withdrawn legal-status Critical Current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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/10—Intensity circuits
    • 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
    • G09G2320/0238—Improving the black level
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0606—Manual adjustment
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • 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
    • G09G3/22—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 using controlled light sources
    • G09G3/28—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 using controlled light sources using luminous gas-discharge panels, e.g. plasma panels

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)
  • Television Receiver Circuits (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Einstellung der Helligkeit einer Zelle eines Flachdisplays, die durch zeitliche Ansteuerung veränderbar ist, dadurch gekennzeichnet, daß unter Berücksichtigung des subjektiven Helligkeitsempfindens die Helligkeitseinstellgröße nicht linear verändert wird, und zwar in der Weise, daß sie im dunkleren Bereich höher ist als im helleren Bereich und unterhalb eines definierten Maximalwertes liegt, und eine Schaltungsanordnung zur Durchführung des Verfahrens.
EP99119311A 1998-10-01 1999-09-29 Verfahren zur Einstellung der Helligkeit einer Zelle eines Flachdisplays Withdrawn EP0992972A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1998145187 DE19845187A1 (de) 1998-10-01 1998-10-01 Verfahren zur Einstellung der Helligkeit einer Zelle eines Flachdisplays
DE19845187 1998-10-01

Publications (2)

Publication Number Publication Date
EP0992972A2 EP0992972A2 (de) 2000-04-12
EP0992972A3 true EP0992972A3 (de) 2000-10-25

Family

ID=7883030

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99119311A Withdrawn EP0992972A3 (de) 1998-10-01 1999-09-29 Verfahren zur Einstellung der Helligkeit einer Zelle eines Flachdisplays

Country Status (2)

Country Link
EP (1) EP0992972A3 (de)
DE (1) DE19845187A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6563479B2 (en) * 2000-12-22 2003-05-13 Visteon Global Technologies, Inc. Variable resolution control system and method for a display device
US7456829B2 (en) * 2004-12-03 2008-11-25 Hewlett-Packard Development Company, L.P. Methods and systems to control electronic display brightness

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05100652A (ja) * 1991-10-04 1993-04-23 Kokusai Electric Co Ltd 表示器の輝度特性制御装置
EP0614321A2 (de) * 1993-03-02 1994-09-07 Fujitsu General Limited Farbanzeigevorrichtung mit Plasmaanzeigetafel
US5754150A (en) * 1995-02-17 1998-05-19 Sharp Kabushiki Kaisha Liquid crystal luminance adjusting apparatus
US5757343A (en) * 1995-04-14 1998-05-26 Pioneer Electronic Corporation Apparatus allowing continuous adjustment of luminance of a plasma display panel

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1534777A (fr) * 1967-06-01 1968-08-02 Thomson Houston Comp Francaise Perfectionnements aux circuits de correction de gamma
US4589022A (en) * 1983-11-28 1986-05-13 General Electric Company Brightness control system for CRT video display
JPH0437263A (ja) * 1990-05-31 1992-02-07 Matsushita Electric Ind Co Ltd 階調補正装置
DE4217594A1 (de) * 1992-05-27 1993-12-02 Siemens Nixdorf Inf Syst Einrichtung zur Helligkeits- und/oder Kontrastregelung von Bildschirmgeräten
US6362835B1 (en) * 1993-11-23 2002-03-26 Texas Instruments Incorporated Brightness and contrast control for a digital pulse-width modulated display system
DE19509035B4 (de) * 1994-03-23 2007-06-28 Carl Zeiss Optronics Gmbh Verfahren zum Steuern der Helligkeit einer Bildschirmdarstellung und Gerät, insbesondere Wärmebildgerät, damit
DE19720876A1 (de) * 1997-05-17 1998-11-19 Grundig Ag Verfahren und Vorrichtung zur Kontrasteinstellung bei impulsbreitengesteuerten Bildanzeigen
DE19721984C2 (de) * 1997-05-26 1999-10-07 Siemens Ag Monitor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05100652A (ja) * 1991-10-04 1993-04-23 Kokusai Electric Co Ltd 表示器の輝度特性制御装置
EP0614321A2 (de) * 1993-03-02 1994-09-07 Fujitsu General Limited Farbanzeigevorrichtung mit Plasmaanzeigetafel
US5754150A (en) * 1995-02-17 1998-05-19 Sharp Kabushiki Kaisha Liquid crystal luminance adjusting apparatus
US5757343A (en) * 1995-04-14 1998-05-26 Pioneer Electronic Corporation Apparatus allowing continuous adjustment of luminance of a plasma display panel

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 451 (P - 1595) 18 August 1993 (1993-08-18) *

Also Published As

Publication number Publication date
EP0992972A2 (de) 2000-04-12
DE19845187A1 (de) 2000-04-13

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