无介质结构FED驱动系统的研制

Research on No Mediator FED Driving System

平行栅型FED的阴极与栅极平行分布在同一平面上,阴极与栅极之间为真空状态,不存在介质,所以又称为无介质结构FED。与前栅、后栅型FED驱动系统中阳极施加高电压、栅极施加扫描信号、阴极施加数据信号不同。本文提出无介质结构FED的驱动系统方案:阳极施加扫描信号、栅极施加数据信号、阴极施加负电压,采用数据的采集及缓存处理、列灰度驱动集成和行扫描的接口电路等技术,研制出无介质结构FED显示器样机,可以显示文字及图像。

Planar-gate FED, whose cathode and gate are parallelly distributed in the same plane. There is vacuum between the cathode and the gate which is also called no mediator FED. Being different from normal-gate and under-gate FED, which applies high voltage to the anode, scanning signal to the gate, and data to the cathode. This paper proposes a no mediator FED driving system. It applies scan signal to the anode, data to the gate, and negative voltage to the cathode. Data acquisition and caching, the gray-shade column driving and the row scanning circuit are also adopted in the system. A no mediator FED prototype that can disolav word and imaze has been worked out.