摘要
激光显示技术与传统显示技术相比,具有色域大、颜色饱和度高以及功耗低等优点,已成为下一代显示领域的主要技术。利用激光投影技术和液晶显示技术的特点,设计了一种基于液晶空间光调制器的液晶激光投影显示系统。该系统使用波长为532 nm的激光作为投影光源,采用ARM微处理器对240×320分辨率的液晶空间光调制器进行控制,实现了图像以及文字的投影显示。通过激光束匀光和激光散斑均化,提高了投影显示图像的辐照均匀性,抑制了激光散斑对于投影显示图像的影响。实验结果表明:研究液晶激光投影显示系统对于激光投影技术具有重要的意义。
Compared with traditional display technology, laser display has many advantages as wider color gamut, fuller color saturation and lower energy consumption, thus promising to be a major display technology in the future. The characteristics of laser projection technology and LCD display technology were employed to design a laser projection system which involved a liquid crystal spatial light modulator. Using a 532 nm wavelength laser as the light source and the ARM to controll the 240x320 resolution liquid crystal spatial light modulator, the system achieved a projection display of image and text. Through the laser beam uniform light and laser speckle homogenization, the irradiation uniformiy of the image of the projector was improved, and the laser speckle influence was limited. The experimental results show that the reaserch of liquid crystal laser projection display system for laser projection technology has important significance.
出处
《红外与激光工程》
EI
CSCD
北大核心
2012年第10期2699-2702,共4页
Infrared and Laser Engineering
基金
国家自然科学基金(60678013)
关键词
激光投影
液晶显示
液晶空间光调制器
激光散斑
laser projection
LCD
liquid crystal spatial light modulator
laser speckle
作者简介
贺锋涛（1974-），男，副教授，博士，主要从事激光成像关键技术中的散斑消除及光电传感信息处理技术、信息高密度光存储等方面的研究。Email：hefengtao@xupt．edu．cn
通讯作者：贾琼瑶（1987-），女，硕士，主要从事激光成像显示关键技术及光电传感信息处理技术等方面的研究。Email：jiaqiongyao@163．com
