维持电压对彩色交流等离子体显示器光电参量的影响

为了改善彩色交流等子体显示器（AC－PDP）的性能，采用静态测量法研究了维持电压脉冲幅度和频率对彩色AC－PDP着火电压，熄火电压，维持电压余度，平均放电电流，亮度，发光效率和白场色度等光电参量的影响。结果表明，随着维持电压幅度和频率（12.5-50kHz)的提高，等离子体显示器平均放电电流和亮度增加，白场色度基本保持不变，而发光效率降低；分析得出导致发光效率降低的主要原因是；Xe原子的自吸收现象和荧光粉的受激辐射饱和。因此，在确定驱动波形时，应在使显示器图像显示稳定的前提下，兼顾其亮度，发光效率，功耗和寿命，合理选择维持电压幅度和频率。

Effects of Sustaining Voltage on Optical and Electrical Parameters of Color Alternating Current Plasma Display Panel

To improve the performance of color alternating current plasma display panel (AC?PDP), the effects of sustaining voltage pulse amplitude and frequency on the optical and electrical parameters of AC?PDP are studied by using the static measurement method. The optical and electrical parameters include firing voltage, extinguishing voltage, sustaining voltage margin, average discharge current, luminance, luminous efficiency, white field chromaticity, etc. The study shows that with the increase in sustaining voltage amplitude and frequency, the average discharge current and luminance increase, and the white field chromaticity changes little, but the luminous efficiency decreases. The decrease in luminous efficiency is owing to the self absorbing phenomenon of Xe atoms and the excited radiation saturation of phosphors. Therefore, under the prerequiste of stable operation of PDP, the luminance, luminous efficiency, power consumption and lifetime of PDP must be considered when determining the amplitude and frequency of sustaining voltage pulse.