摘要
根据FED显示器响应特性,设计了改进型PWM灰度调制方法。通过确定驱动脉冲顺序,结合人眼的视觉特性设计了最优PWM调制技术。通过调整驱动脉冲增量,实现了单位时间亮暗转换次数最大化和亮暗转换频率均匀化的优化目标。采用FPGA控制技术实现了改进型PWM灰度调制,减少了FED图像灰阶损失,提高了图像显示质量。
Base on the response characteristics oI FED, the improved grayscale pulse width modulation（PWM） method was designed. By determining the driving pulse sequence and combining with the human eye＇s visual characteristics, the optimal techniques of PWM modulation were designed. By adjusting the driving pulse increment, the bright dark conversion to maximize the number of dark and light switching frequency optimization goal of homogenization in per unit time were achieved. The FPGA technology was used to achieve an improved control of grayscale PWM modulation. It can reduce the loss of FED grayscale images and improve image display quality.
出处
《光电子技术》
CAS
北大核心
2009年第4期271-275,共5页
Optoelectronic Technology
基金
国家"863"计划平板显示重大专项资助项目(2008AA03A313)
福建省教育厅资助重点项目(JA09003)
关键词
场致发射显示器
灰度调制
脉宽灰度调制
field emission display
gray-scale modulation
pulse width modulation
