VOLTAGE GENERATOR AND ORGANIC LIGHT EMITTING DISPLAY DEVICE USING THE SAME

• Main Authors: CHOI, HAK KI, KIM, SU WEON
• Format: Patent
• Language: English; Korean
• Published: 27.01.2014
• Subjects: ADVERTISING; APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION; CONTROL OR REGULATION THEREOF; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; CRYPTOGRAPHY; DISPLAY; EDUCATION; ELECTRICITY; GENERATION; PHYSICS; SEALS

The present invention relates to a voltage generator capable of improving stability. The voltage generator of the present invention includes a DC/DC convertor outputting a first voltage of the first period for a frame using a first power voltage and a second power voltage lower than the first power voltage and not outputting the first voltage for another period; a first transistor turning on for the first period by touching between the DC/DC converter and an output terminal; a second transistor turning on for a third period by touching between the output terminal and a third power source supplying to a third voltage lower than the first voltage; and a voltage control part for limiting the voltage of the output terminal by touching the output terminal. [Reference numerals] (150) Timing control part; (172) DC/DC convertor