ORGANIC LIGHT EMITTING DISPLAY DEVICE, AND METHOD OF GENERATING A GAMMA REFERENCE VOLTAGE FOR THE SAME

An organic light emitting display device includes a display panel having pixel circuits, a scan driving part which provides a scan signal to the pixel circuits, a data driving part which provides a data signal to the pixel circuits, a power supply part which provides a first power voltage and a seco...

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Bibliographic Details
Main Author KIM, MIN WEUN
Format Patent
LanguageEnglish
Korean
Published 29.04.2014
Subjects
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Summary:An organic light emitting display device includes a display panel having pixel circuits, a scan driving part which provides a scan signal to the pixel circuits, a data driving part which provides a data signal to the pixel circuits, a power supply part which provides a first power voltage and a second power voltage to the pixel circuits, a gamma reference voltage generation part which generates a gamma reference voltage corresponding to the voltage difference between the first power voltage and a reduction reference voltage, a gamma voltage generation part which generates gamma voltages based on the gamma reference voltage and provides the same to the data driving part, and a timing control part which controls at least one among the scan driving part, the data driving part, the power supply part, the gamma reference voltage generation part, and the gamma voltage generation part.
Bibliography:Application Number: KR20120116439