ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF

ORGANIC LIGHT EMITTING DISPLAY DEVICE AND DRIVING METHOD THEREOF

PURPOSE: An organic electroluminescent display device and a driving method of the same are provided to control not to exceed a power consumption limit by lowering current value applying variable gamma. CONSTITUTION: An average picture level output part(112) calculates the average picture level of an...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM, HYUNG JUNG, LEE, MUN JUN
Format: Patent
Sprache:eng ; kor
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:PURPOSE: An organic electroluminescent display device and a driving method of the same are provided to control not to exceed a power consumption limit by lowering current value applying variable gamma. CONSTITUTION: An average picture level output part(112) calculates the average picture level of an inputted image. A current calculation part(113) calculates the current value of the average picture level. A peak brightness control part(114) applies a first gamma conversion value or a second gamma conversion value for outputting a first brightness control signal or a second brightness control signal. A programmable gamma part(135) outputs gamma voltage corresponding to the brightness control signal. A data driving part(130) generates a data signal based on the gamma voltage for supplying the gamma voltage to a display panel.