EP 1821277 A3 20100217 - Method for driving plasma display panel with attenuation estimation and compensation and corresponding apparatus
Title (en)
Method for driving plasma display panel with attenuation estimation and compensation and corresponding apparatus
Title (de)
Verfahren zur Ansteuerung einer Plasmaanzeigetafel mit Dämpfungsschätzung und -korrektur sowie entsprechende Vorrichtung
Title (fr)
Procédé de commande d'un panneau d'affichage à plasma avec estimation et compensation de l'atténuation, et appareil correspondant
Publication
Application
Priority
- EP 06290293 A 20060220
- EP 07102607 A 20070219
Abstract (en)
[origin: EP1821277A2] The picture quality on a plasma display panel shall be improved when the contrast and/or the brightness are reduced. This is achieved by estimating the reduction of the dynamic occurring in the front-end (2) of the data processing of the plasma display device and by compensating it in the back-end (3). Specifically, the gain and/or offset of the video input data are adjusted (5) and the power level of the adjusted video data is measured (10). The resulting power level information is updated (13) on the basis of an attenuation information (12). The updated power level is used for the power management (9) and the level of the video data being reduced (5) in the front-end (2) is increased (14) on the basis of the attenuation information. Thus, the dynamic of the video and, as a result, the picture quality are improved.
IPC 8 full level
G09G 3/28 (2006.01); G09G 3/288 (2006.01); G09G 3/294 (2013.01)
CPC (source: EP)
G09G 3/2803 (2013.01); G09G 3/2944 (2013.01); G09G 2320/0271 (2013.01); G09G 2320/0606 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/066 (2013.01); G09G 2330/045 (2013.01); G09G 2360/16 (2013.01)
Citation (search report)
- [X] EP 1139322 A2 20011004 - FUJITSU HITACHI PLASMA DISPLAY [JP]
- [X] US 2004004610 A1 20040108 - IWAMI TAKASHI [JP], et al
- [A] EP 1347434 A1 20030924 - KONINKL PHILIPS ELECTRONICS NV [NL]
- [E] EP 1796064 A1 20070613 - THOMSON BRANDT GMBH [DE]
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA HR MK RS
DOCDB simple family (publication)
DOCDB simple family (application)
EP 07102607 A 20070219