论文标题:碳纳米管场发射显示器件驱动电路的研究
The Driving Circuit for Carbon Nanotube Field Emission Display
论文作者
论文导师 张峰,论文学位 硕士,论文专业 微电子学与固体电子学
论文单位 中国科学院研究生院（上海微系统与信息技术研究所）,点击次数 79,论文页数 64页File Size3480K
2006-05-01论文网 http://www.lw23.com/lunwen_888612942/
Field emission display; Driving circuit; Dynamic display; Gray
碳纳米管场发射显示器(CNT-FED)是一种新型的平板显示器，在平板显示领域备受瞩目。本论文针对两种CNT-FED器件原型：碳纳米管冷阴极数码管和16×16矩阵选址FED器件，根据其结构特点和电学特性，设计了相应的驱动电路，实现了器件的动态显示，为CNT-FED实用化提供了重要的实践基础。 研究了数码管动态数码显示的驱动原理，根据冷阴极数码管的高压驱动特性，设计了相应的逻辑信号产生电路和高压驱动电路，实现了冷阴极数码管的动态数码显示功能。 研究了矩阵选址器件的驱动原理，设计了以51单片机为控制核心的逻辑电路和以高压MOS管为主的高压驱动电路。逻辑电路主要为后端高压驱动提供逻辑控制信号，高压驱动电路主要为矩阵选址FED器件的阳极和阴极提供高压信号。采用51汇编语言编写了控制驱动程序。通过软件调试、硬件仿真，将设计的电路制作成电路板，在16×16矩阵选址FED器件上实现了字符的动态显示。针对已设计电路中出现的问题——逻辑电路设计的局限性和高压驱动电路功耗过大等提出了可行的改进方案。介绍了高压驱动集成芯片的用法，为实验室今后制备的工作电压较低的FED显示器件提供集成化的驱动电路设计方案。 对灰度显示技术初步开展了一些研究工作，介绍了主要的灰度显示实现方法：空间灰度调制和时间灰度调制。采用脉宽灰度调制的方式，在FED矩阵结构显示器件上实现了简单的灰度显示。
Carbon nanotube field emission display (CNT-FED) is a new type of flat panel display, it has drawn tremendous interest from flat display field. In this thesis, according to the structural and electrical properties of different devices, driving circuits were designed for two CNT-FED prototype devices: the digital tube device and the 16×16 matrix device. The dynamic display was implemented, which provided important foundation on the practical application of the CNT-FED.The display principle for digital display tube with CNT cathode was studied, and driving circuits including logical circuit and high voltage driving circuit were designed to achieve dynamic digital display.Based on the structure of the 16×16 matrix addressable CNT-FED, the matrix display principle was analyzed. The driving circuits for the matrix CNT-FED were composed of two parts: the logical circuit and the high voltage driving circuit. The logical circuit with the control core 51 microcomputer was designed to provide logical control signals for the high voltage driving part, and the latter mainly including the high voltage MOS provided high voltage for driving anode and cathode of the matrix CNT-FED. The driving software was compiled by 51 assembly language. After software debug and hardware emulation, the circuit board was fabricated, and the dynamic display of characters was obtained. However, the designed driving circuit still remained many problems, such as the limitation of the logical circuit and the large power of the high voltage circuit. In this thesis, some feasible improvements were made to solve such problems. The high voltage
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