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 PDFInfo
- 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- Withdrawn
Links
- 230000000694 effects Effects 0.000 claims abstract description 26
- 230000015654 memory Effects 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 10
- 230000010354 integration Effects 0.000 claims description 6
- 230000002123 temporal effect Effects 0.000 claims 2
- 210000004027 cell Anatomy 0.000 description 45
- 238000012937 correction Methods 0.000 description 13
- 230000032683 aging Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000009125 cardiac resynchronization therapy Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
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- 230000005281 excited state Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 210000004180 plasmocyte Anatomy 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
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- 238000011084 recovery Methods 0.000 description 1
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- 230000002441 reversible effect Effects 0.000 description 1
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Images
Classifications
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- 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)
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 |
| PCT/EP2003/050215 WO2003107317A1 (fr) | 2002-06-14 | 2003-06-05 | Compensation de remanence pour panneaux d'affichage plasma |
| AU2003250241A AU2003250241A1 (en) | 2002-06-14 | 2003-06-05 | Burn-in compensation for plasma display panels |
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 (5)
| 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 |
| EP3669353A4 (fr) * | 2017-08-17 | 2021-08-11 | LG Electronics Inc. | Appareil d'affichage d'images |
Citations (3)
| 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 |
-
2002
- 2002-06-14 EP EP02291489A patent/EP1376520A1/fr not_active Withdrawn
-
2003
- 2003-06-05 AU AU2003250241A patent/AU2003250241A1/en not_active Abandoned
- 2003-06-05 WO PCT/EP2003/050215 patent/WO2003107317A1/fr not_active Ceased
Patent Citations (3)
| 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 (8)
| 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 |
| EP3669353A4 (fr) * | 2017-08-17 | 2021-08-11 | LG Electronics Inc. | Appareil d'affichage d'images |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003107317A8 (fr) | 2005-03-17 |
| WO2003107317A1 (fr) | 2003-12-24 |
| AU2003250241A1 (en) | 2003-12-31 |
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