高亮度荧光显示器

High-Bright Vacuum Fluorescent Display Device

本文涉及利用荧光显示原理,实现室外高亮度显示的研究。通过对象素大、激发功率密度高引起的发光材料的温度猝灭现象的分析,提出了提高发光面积和光出射窗面积之比,以提高器件饱和亮度的方案。并据此制成了利用自然散热、亮度达14000cd/m^2的荧光象元管,以及在适当散热下亮度大于20000cd/m^2的笔段显示器。

This paper relates to the study of high brightness of outdoor display based on Vacuum Fluorescent Display (VFD). After analysing the thermal quenching of phosphors resulting from big pixel and high intensity excitation, we bring forward the idea of raising the ratio of fluorescent area to light output window area so as to increase the saturation brightness of device. In accordance with above discussion. we get a high-bright fluorescent picture element tube of brightness of 14 000cd/m2 without spcial radiator and a segment display device of brightness of more than 20 000cd/m2 with a suitable heat radiator.