EP 0793212 B1 20000315 - Control method for a display screen with gradation display and display device for carrying out the same
Title (en)
Control method for a display screen with gradation display and display device for carrying out the same
Title (de)
Steuerverfahren für eine Bildanzeigetafel mit Halbtönen und Anzeigeeinrichtung zur Durchführung dieses Verfahrens
Title (fr)
Procédé de commande d'un écran de visualisation d'image affichant des demi-teintes, et dispositif de visualisation mettant en oeuvre le procédé
Publication
Application
Priority
FR 9602393 A 19960227
Abstract (en)
[origin: EP0793212A1] The display is controlled by placing each display cell in the 'dark' state or the 'bright' state for a succession of sub-intervals (S1 to S8) determined by the level of luminance required for each cell. The sub-intervals vary, depending on the luminance required. The sub-intervals lie within a given cycle time (P1). In addition, for the rows controlling the cells, the order of the distribution of the sub-periods is adjusted to reduce the amplitude of variations of charge (Q1, Q2) applied to the controller.
IPC 1-7
IPC 8 full level
G09G 3/36 (2006.01); G09F 9/313 (2006.01); G09G 3/20 (2006.01); G09G 3/28 (2013.01)
CPC (source: EP US)
G09G 3/2022 (2013.01 - EP US); G09G 3/294 (2013.01 - EP US); G09G 3/297 (2013.01 - EP US); G09G 2320/0266 (2013.01 - EP US); G09G 2330/025 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0793212 A1 19970903; EP 0793212 B1 20000315; CN 1110941 C 20030604; CN 1180274 A 19980429; DE 69701413 D1 20000420; DE 69701413 T2 20000907; FR 2745410 A1 19970829; FR 2745410 B1 19980605; JP H09237061 A 19970909; KR 970064172 A 19970912; US 6067060 A 20000523
DOCDB simple family (application)
EP 97400389 A 19970221; CN 97101997 A 19970226; DE 69701413 T 19970221; FR 9602393 A 19960227; JP 5863097 A 19970227; KR 19970005909 A 19970226; US 80328097 A 19970220