硅基液晶像素电路的研究  

Pixel Circuits of Liquid Crystal on Silicon

作　　者：黄苒[1] 杜寰[1] 王文博[1] 王晓慧[1] 韩郑生[1] 

机构地区：[1]中国科学院微电子研究所,北京100029

出　　处：《液晶与显示》2007年第6期742-745,共4页Chinese Journal of Liquid Crystals and Displays

基　　金：国家"973"资助项目(No.2003CB314705)

摘　　要：分析研究了微显示器件的场缓存技术与现有硅基液晶场缓存像素电路的结构特点,提出了一种新型的像素电路结构,此电路改变了以往电路结构中专门采用一个晶体管对像素电容进行放电的做法,通过同一个晶体管对像素电容进行充放电。电路经过Hspice仿真,对结果进行分析表明,其功能及特性符合设计要求,像素电容电荷保持率达到99%。电路具有结构简单,占用芯片面积小,像素电容电荷保持率高等优点,适合高亮度、高分辨率微显示器件的设计与制造。The frame buffer technology of microdisplay devices and the existing frame buffer pixel circuit structure of LCoS microdisplays were analyzed and studied.A novel frame buffer pixel circuit is proposed.This circuit changed the method of using a special MOSFET to discharge the pixel capacitances in other pixel circuits,used the same MOSFET to charge and discharge the pixel capacitances.The results simulated by Hspice was analyzed,the function and characteristic of this circuit accord with requires of design,the voltage-holding-ratio of the pixel capacitances is 99 %.The circuit has the advantages of simple structure,little area occupied and high voltage-holding-ratio.It is useful to the design and fabrication of high lighteness and high resolution microdisplay devices.

关 键 词：硅基液晶 场缓存 像素电路 

分 类 号：TN27[电子电信—物理电子学]