| Summary: | 碩士 === 國立臺北科技大學 === 光電工程系研究所 === 95 === This thesis research is to develop a new method named “equivalent capacitance approximation” for studying the equivalent circuitry and system power of operating organic light-emitting devices (OLED). The OLED in equivalent capacitance approximation is regarded as a macro device and series connected to a known capacitance. The equivalent circuitry for theoretical analysis consists of two parallel-connected resistors and capacitances in series connection. Our research results revealed that the electrical characteristics of red (R), green (G), blue (B), and white (W) OLEDs have the same magnitude order. The impedance, phase angle, equivalent resistance, equivalent capacitance, apparent power, real power, and reactive power of red OLED are 75~95 kΩ, 60~70o, 300~400 kΩ, 2.5~3.5 nF, 130~135 uW, 40~60 uW, and 115~125 uW respectively. The impedance, phase angle, equivalent resistance, equivalent capacitance, apparent power, real power, and reactive power of green OLED are 80~100 kΩ, 65o, 200~300 kΩ, 2.0~3.0 nF, 80~90 uW, 70 uW, and 50 uW respectively. The impedance, phase angle, equivalent resistance, equivalent capacitance, apparent power, real power, and reactive power of blue OLED are 70~100 kΩ, 65~70o, 300~400 kΩ, 2.0~3.5 nF, 115~135 uW, 40~90 uW, and 70~120 uW respectively. The percentage mean square error is 0.6%~10% in this research.
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