DC stabilization circuit for organic electroluminescent...

Details DC stabilization circuit for organic electroluminescent... DC stabilization circuit for organic electroluminescent...

2006-04-26

2010-10-12

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Display power source

C345S212000, C323S312000, C323S315000, C327S052000, C327S053000

Reexamination Certificate

active

07812834

ABSTRACT:
A DC stabilization circuit for an organic electroluminescent display device and a power supply using the same are provided. The DC stabilization circuit includes a self-bias part connected between a first power supply voltage and a reference power supply. The self-bias part generates a bias voltage depending on the first power supply voltage. The circuit also includes a differential part connected to the self-bias part that amplifies a variation in the bias voltage. A negative feedback part is connected to the differential part, adjusts a level of a second power supply voltage using a variable resistor, and compensates for the amplified variation of the bias voltage through a negative feedback operation.

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Korean Patent Abstracts, Publication No. 100144590 B1; Publication Date: Apr. 21, 1998; in the name of Kwon.
Office Action for corresponding Korean Patent Application No. 10-2005-0036391 dated Sep. 25, 2006.

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