VOLTAGE GENERATOR AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME

A voltage generator includes a DC/DC converter configured to output a first voltage during a first period of a frame period, the DC/DC converter being connected to a first power voltage and to a second power voltage lower than the first power voltage, a first transistor coupled between the DC/DC con...

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Bibliographic Details
Main Authors CHOI HAK-KI, KIM SU-WEON
Format Patent
LanguageEnglish
Published 23.01.2014
Subjects
CALCULATING
COMPUTING
CONTROLLING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
REGULATING
SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
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Summary:A voltage generator includes a DC/DC converter configured to output a first voltage during a first period of a frame period, the DC/DC converter being connected to a first power voltage and to a second power voltage lower than the first power voltage, a first transistor coupled between the DC/DC converter and an output terminal, the first transistor being configured to be turned on during the first period, a second transistor coupled between the output terminal and a third voltage source, the third voltage source being configured to supply a third voltage lower than the first voltage, and the second transistor being configured to be turned on during a third period of the frame period, and a voltage controller coupled to the output terminal, the voltage controller being configured to limit a voltage of the output terminal.
Bibliography:Application Number: US201213670923