Title :
On the measurement of conduction current in AC thin-film electroluminescent display devices
Author :
Singh, Vijay P. ; Morton, David C.
Author_Institution :
Dept. of Electr. Eng., Texas Univ., El Paso, TX, USA
Abstract :
Estimates are obtained for errors associated with the use of a capacitive bridge method for the measurement of the conduction current-time waveform in AC thin-film electroluminescent display devices. The error is a function of the shape and the slew rate of the excitation voltage pulses and can be quite large. In general, the bridge method underestimates the value of conduction current. An improved technique for measuring the current waveform is outlined. The proposed method is more accurate and more generally applicable.<>
Keywords :
bridge instruments; electric current measurement; electroluminescent displays; AC thin-film electroluminescent display devices; conduction current; current-time waveform; excitation voltage pulses; slew rate; Bridge circuits; Current measurement; Dielectrics; Displacement measurement; Displays; Electroluminescent devices; Phosphors; Pulse measurements; Thin film devices; Threshold voltage;
Journal_Title :
Electron Device Letters, IEEE
