EP1376520A1 - Compensation pour la rémanence d'image sur un panneau d'affichage à plasma - Google Patents

Compensation pour la rémanence d'image sur un panneau d'affichage à plasma Download PDF

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Publication number
EP1376520A1
EP1376520A1 EP02291489A EP02291489A EP1376520A1 EP 1376520 A1 EP1376520 A1 EP 1376520A1 EP 02291489 A EP02291489 A EP 02291489A EP 02291489 A EP02291489 A EP 02291489A EP 1376520 A1 EP1376520 A1 EP 1376520A1
Authority
EP
European Patent Office
Prior art keywords
burn
cells
activity value
basis
gain
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Withdrawn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
EP02291489A
Other languages
German (de)
English (en)
Inventor
Carlos Correa
Rainer Zwing
Sébastien Weitbruch
Cédric Thebault
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche Thomson Brandt 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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Priority to EP02291489A priority Critical patent/EP1376520A1/fr
Priority to AU2003250241A priority patent/AU2003250241A1/en
Priority to PCT/EP2003/050215 priority patent/WO2003107317A1/fr
Publication of EP1376520A1 publication Critical patent/EP1376520A1/fr
Withdrawn legal-status Critical Current

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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
    • G09G3/22—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
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/046—Dealing with screen burn-in prevention or compensation of the effects thereof
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • G09G2320/043—Preventing or counteracting the effects of ageing
    • G09G2320/048—Preventing or counteracting the effects of ageing using evaluation of the usage time
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data
    • 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
    • G09G3/288—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 using AC panels

Definitions

  • the PDP burn-in problem is one of the unsolved problems of PDP technology.
  • the burn-in problem can be divided in a short-term burn-in and a long-term burn-in.
  • two kinds of ghost images are existing :
  • this object is solved by a method for compensating burn-in effects on display devices containing a plurality of luminous cells by recording an activity value of each or a group of said cells and controlling the gain of the signals for said cells on the basis of said recorded activity value.
  • variable gain multiplier burn-in gain
  • the individual cell correction is possible because there is an accurate cell usage map, which can be translated in equivalent operation hours, and so an individual cell burn-in calculator can be evaluated.
  • the signal processing units for the compensation algorithm are integrated into a usual signal processing system for a plasma display panel 1.
  • the video signals for red, green and blue colours, R, G, B are put into a video-degamma unit 2.
  • the input signals have a bit length of 8 bits, i.e. bit 0 to bit 7.
  • the output signals are further processed under the control of a control circuit 6 by sub-field coding means 3, sent to frame memory 4 and converted in a serial/parallel converter 5 for driving the plasma display panel 1.
  • the control circuit 6 is a Peak White Enhancement Controller 6, which obtains an average power AP for each picture from an average power measuring device 7 connected to the video-degamma means 2.
  • the burn-in compensation means is connected between the video-degamma means 2 and the subfield coding means 3.
  • the burn-in compensation means comprises a burn-in multiplier 11 connected at the output of the video degamma means 2, a burn-in gain control circuit 10, a burn-in memory 9 and a sustain integration circuit 8.
  • gain_window block 17 maps the luminance gain factors to correction factors: Gmin -> 1.00 GR -> 1.00 - (GR - Gmin) GG -> 1.00 - (GG - Gmin) GB -> 1.00 - (GB - Gmin) Gmax-> 1.00 - (Gmax-Gmin)

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of Gas Discharge Display Tubes (AREA)
EP02291489A 2002-06-14 2002-06-14 Compensation pour la rémanence d'image sur un panneau d'affichage à plasma Withdrawn EP1376520A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP02291489A EP1376520A1 (fr) 2002-06-14 2002-06-14 Compensation pour la rémanence d'image sur un panneau d'affichage à plasma
AU2003250241A AU2003250241A1 (en) 2002-06-14 2003-06-05 Burn-in compensation for plasma display panels
PCT/EP2003/050215 WO2003107317A1 (fr) 2002-06-14 2003-06-05 Compensation de remanence pour panneaux d'affichage plasma

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02291489A EP1376520A1 (fr) 2002-06-14 2002-06-14 Compensation pour la rémanence d'image sur un panneau d'affichage à plasma

Publications (1)

Publication Number Publication Date
EP1376520A1 true EP1376520A1 (fr) 2004-01-02

Family

ID=29716939

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02291489A Withdrawn EP1376520A1 (fr) 2002-06-14 2002-06-14 Compensation pour la rémanence d'image sur un panneau d'affichage à plasma

Country Status (3)

Country Link
EP (1) EP1376520A1 (fr)
AU (1) AU2003250241A1 (fr)
WO (1) WO2003107317A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004070695A1 (fr) * 2003-02-05 2004-08-19 Sony Corporation Appareil d'affichage et procede de commande d'un appareil d'affichage
DE10354820A1 (de) * 2003-11-24 2005-06-02 Ingenieurbüro Kienhöfer GmbH Verfahren und Vorrichtung zum Betrieb eines verschleißbehafteten Displays
WO2006122609A1 (fr) * 2005-05-20 2006-11-23 Ingenieurbüro Kienhöfer GmbH Procede permettant de faire fonctionner un dispositif d'affichage ayant une pluralite d'elements image sensibles a l'usure, dispositif de correction d'un signal de commande destine a un dispositif d'affichage et dispositif d'affichage
US8237750B2 (en) 2008-10-23 2012-08-07 Motorola Mobility, Inc. Method of correcting emissive display burn-in

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493183A (en) * 1994-11-14 1996-02-20 Durel Corporation Open loop brightness control for EL lamp
EP0755042A1 (fr) * 1995-07-20 1997-01-22 STMicroelectronics S.r.l. Méthode et dispositif pour uniformiser la luminosité et pour réduire la dégradation de la matière fluorescente dans un dispositif d'affichage plat à émission de champ
EP1047040A1 (fr) * 1999-03-30 2000-10-25 Nec Corporation Appareil de commande pour un panneau d'affichage à plasma

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5493183A (en) * 1994-11-14 1996-02-20 Durel Corporation Open loop brightness control for EL lamp
EP0755042A1 (fr) * 1995-07-20 1997-01-22 STMicroelectronics S.r.l. Méthode et dispositif pour uniformiser la luminosité et pour réduire la dégradation de la matière fluorescente dans un dispositif d'affichage plat à émission de champ
EP1047040A1 (fr) * 1999-03-30 2000-10-25 Nec Corporation Appareil de commande pour un panneau d'affichage à plasma

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2004070695A1 (fr) * 2003-02-05 2004-08-19 Sony Corporation Appareil d'affichage et procede de commande d'un appareil d'affichage
DE10354820A1 (de) * 2003-11-24 2005-06-02 Ingenieurbüro Kienhöfer GmbH Verfahren und Vorrichtung zum Betrieb eines verschleißbehafteten Displays
US7612787B2 (en) 2003-11-24 2009-11-03 Ingenieurbuero Kienhoefer Gmbh Method and device for operating a display afflicted with wear
WO2006122609A1 (fr) * 2005-05-20 2006-11-23 Ingenieurbüro Kienhöfer GmbH Procede permettant de faire fonctionner un dispositif d'affichage ayant une pluralite d'elements image sensibles a l'usure, dispositif de correction d'un signal de commande destine a un dispositif d'affichage et dispositif d'affichage
US20080180354A1 (en) * 2005-05-20 2008-07-31 Ingenieurburo Kienhofer Gmbh Process for operating a display device with a multitude of picture elements, which are subject to wear, device for correcting an activation signal for a display device, and display device
CN101176138B (zh) * 2005-05-20 2010-10-13 基恩赫费工程有限公司 用于驱动具有多个会退化像素的显示装置的方法、用于校正显示装置的驱动信号的装置以及显示装置
US8237750B2 (en) 2008-10-23 2012-08-07 Motorola Mobility, Inc. Method of correcting emissive display burn-in

Also Published As

Publication number Publication date
AU2003250241A1 (en) 2003-12-31
WO2003107317A1 (fr) 2003-12-24
WO2003107317A8 (fr) 2005-03-17

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