有機半導體發光元件的等效電路與系統功率研究

The Study of Equivalent Circuitry and System Power in Organic Light-Emitting Devices.

蘇聰藝(Tsung-Yi Su)

指導教授 ： 楊恆隆

國立臺北科技大學/電資學院/光電工程系研究所/碩士(2007年)

摘要

本論文研究是使用新發展的等效電容逼近法來探討有機半導體發光元件的等效電路阻抗及負載功率的量化。等效電容逼近法是使用一組電路為電阻與電容並聯結構，接著這一組並聯電路與有機半導體發光元件電路串聯，且此研究中有機半導體發光元件在電路上將視為一個巨觀性元件。研究結果顯示，紅光元件阻抗大小值75 ~ 95 kΩ、相角值60~70 度、內電阻為300 ~ 400 kΩ、內電容值為2.5 ~ 3.5 nF、總功率為130 ~ 135μW、實部功率為40 ~ 60μW、虛部功率為115 ~ 125μW；綠光元件阻抗值為80 ~ 100 kΩ、相角值65度、內電阻為200 ~ 300 kΩ、內電容值為2.0 ~ 3.0 nF、總功率為80 ~ 90μW、實部功率為70μW、虛部功率為50μW；藍光元件阻抗值為70 ~ 100 kΩ、相角值65 ~70度之間、內電阻為300 ~ 400 kΩ、內電容值為2.0 ~ 3.5 nF、總功率為115 ~ 135μW、實部功率為40 ~ 90μW、虛部功率為70 ~ 120μW；白光元件阻抗值為80 ~ 110 kΩ、相角值65 ~70度之間、內電阻為250 ~ 350 kΩ、內電容值為1.75 ~ 2.75nF、總功率為125 ~ 135μW、實部功率為45 ~ 55μW、虛部功率為115 ~ 120μW。綜合上述，有機半導體發光元件的不同色光對於整體負載電路的等效電路均落在同一個數量級內。本篇論文中使用最小平方法誤差分析法的誤差範圍在0.6 % ~ 10 %範圍之內。

關鍵字

有機半導體發光元件 ； 等效電路 ； 功率損耗 ； 虛功率

並列摘要

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.

並列關鍵字

Organic Light-Emitting Devices ； Equivalent Circuitry ； Power Consumption ； Reactive Power

參考文獻

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