DLP投影显示系统的优势及发展前景

基于DLP技术的新投影系统已被开发出来,该系统的核心是DMD器件。采用二进制脉宽调制技术精确控制光的灰度等级,在大屏幕上可得到高亮度、高对比度、高分辨率的优质彩色投射图像。本文介绍DLP系统及DMD的基本工作原理,讨论DLP显示系统在技术上的优势,分析DLP显示的市场前景和技术发展趋势,     

数字光处理(DLP)投影系统

数字光处理(DLP)投影显示技术的核心是数字微镜器件(DMD)，这是一种基于半导体制造技术、由高速数字式光反射开关阵列组成的器件，采用二进制脉宽调制技术能精确地控制光源。DLP技术提供了全数字投影显示，在清晰度、亮度、对比度和色彩还原方面能提供高质量的图像。     

DMD数字微镜驱动控制系统分析及其应用

数字微反射镜器件(DMD)是数字式光处理(DLP)投影显示技术的核心,有着巨大的应用潜力。叙述了DMD的控制原理和特点。首先,基于DMD数字微镜控制器的驱动控制系统和采用二进制脉宽调制(BPWM)技术精确控制光源,接收PC机传输的实时图像显示数据,生成控制DMD翻转的控制时序及其复位脉冲信号,搭建了蓝光半导体激光投影光刻装置,实现了高分辨率灰度图像的分层曝光和曝光量的精确控制;其次,基于DLP投影系统,采用RGB激光源,通过光纤耦合和合束,建立了激光投影实验装置。     

数字微镜显示

数字微镜器件(Digital Micromirror Device,早期也有称为Deformable Mirror Device)是一种新型的全数字化的平板显示器件,它将反射微镜阵列及CMOS SRAM集成在同一芯片上。DMD技术是近年来正在逐步走向实用的微电子机械系统(MEMS)的成功应用之一。采用DMD为主要组件的大屏幕投影显示技术获得了良好的市场反映。目前以DMD为基础的数字光学处理技术DLP(Digital Light Processing)在民用和军事方面都有应用,DMD和DLP已成为注册商标。     

数字微镜器件(DMD)

数字式光处理(DLP-Digital light processing)投影显示技术的核心是数字微镜器件(DMD-Digital micromirror device)，它是一种基于半导体制造技术，由高速数字式光反射开关阵列组成的器件，采用二进制脉宽调制技术能精确地控制光源。叙述了用于DLP投影系统的DMD的原理、制造、性能和特点。     

基于蓝牙技术的DLP投影系统设计与实现

本文设计实现了一个基于蓝牙技术的DLP投影系统,DLP投影机使用DDP2000主控制器及DMD器件,投影机中的蓝牙模块采用BlueCore3蓝牙芯片,在JavaTM ME平台上设计的控制器程序可以兼容绝大多数蓝牙手机,使蓝牙手机成为DLP投影机的无线控制器,方便了DLP投影系统的使用,充分发挥了DLP投影系统便携移动的特点。     

DLP投影显示技术

<正> DLP是数字光处理的英文首字母缩写。DLP投影显示技术是美国德州仪器公司(TI)发明的一种高亮度高清晰度投影技术,其核心是数字微镜器件(DMD)。DMD是采用微机电系统原理,用半导体工艺制成的数字光开关阵列。DMD与一种“机械扫描转盘”相结合,可显示彩色图像。同时,DLP投影机会聚是由内部的DMD的配置所固定,不随时间而变,极其稳定。     

新颖实用的高清晰度DLP数字背投技术简介

DLP数字背投采用了新颖的数字微镜器件(DMD)和脉宽调制技术，抛弃了传统的光学会聚，发挥了自己独特的技术优势，不仅对投影显示技术产生了一项革命性的创新。而且彻底实现了数字化终端显示。并与国内外的数字高清晰度电视信号顺利接轨。     

基于数字光处理器的裸眼立体显示系统

详细介绍了一种基于背投显示设备的裸眼立体显示方法,可实现观众在不佩戴特殊眼镜的情况下观看有立体效果的视频.不同于现在广泛采用的光栅方法,提出算法基于DLP特有的成像原理,更改原先的单片DMD投影为左右两片DMD交替投影,将对应于左右眼的视频帧按时间顺序交叉处理后,依次投射至屏幕上.和使用分光眼镜或者是采用光栅来分离左右眼接收光不同的是,提到的方法采用特殊的透镜屏幕,可以有效使得左右眼分别看到互不干扰的视频对,从而产生视差.实际观测效果证明方法在清晰度和观看视角方面都具有更优的性能,并且降低观看和视频源获取的复杂度.     

数字微镜显示

数字微镜器件(Digital Micromirror Device,早期也有称为Deformable MirrorDevice)是一种新型的全数字化的平板显示器件,它将反射微镜阵列及CMOS SRAM集成在同一芯片上。DMD技术是近年来正在逐步走向实用的微电子机械系统(MEMS)的成功应用之一。采用DMD为主要组件的大屏幕投影显示技术获得了良好的市场反映。目前以DMD为基础的数字光学处理技术DLP(Digital Light Processing)在民用和军事方面都有应用,DMD和DLP已成为注册商标。     

Technology innovation and process integrations for sub-100nm gate patterning

This paper presents a brief overview of the Applied Centura(R)DPS(R)system,configured with silicon etch DPS Ⅱ chamber, with emphasis on discussing tuning capability for CD uniformity control. It also presents the studies of etch process chemistry and film integration impact for an overall successful gate patterning development. Discussions will focus on resolutions to key issues, such as CD uniformity, line-edge roughness, and multilayer film etching integration.     

White organic light-emitting devices based on fac tris（2- phenylpyridine） iridium sensitized 5,6,11,12-tetraphenylnap -hthacene

We have fabricated the white organic light-emitting devices （WOLEDs） based on 4,4＇ -bis（2,2 -diphenyl vinyl）-1,1＇ - biphenyl （DPVBi） and phosphorescence sensitized 5,6,11,12,-tetraphenylnaphthacene （rubrene）. The device structure is ITO/2T-NATA （20 nm）/NPBX （20 nm）/CBP： x%Ir（ppy）3：0.5% rubrene （8 nm）/NPBX （5 nm）/DPVBi （30 nm）/Alq（30 nm）/LiF（0.5 nm）/A1. In the devices, DPVBi acts as a blue light-emitting layer, the rubrene is sensitized by a phosphorescent material, fac tris （2-phenylpyridine） iridium [Ir（ppy）3], acts as a yellow light-emitting layer, and N,N＇ -bis- （1-naphthyl）- N,N＇ -diphenyl -1, 1＇ -biphenyl-4,4＇ -diamine （NPBX） acts as a hole transporting and exciton blocker layer, respectively. When the concentration of Ir （PPY）3 is 6wt%, the maximum luminance is 24960 cd/m^2 at an applied voltage of 15 V, and the maximum luminous efficiency is 5.17 cd/A at an applied voltage of 8 V.     

Complete approach to automatic identification and subpixel center location for ellipse feature

To meet the need of automatic image features extraction with high precision in visual inspection, a complete approach to automatic identification and sub-pixel center location for similar-ellipse feature is proposed. In the method, the feature area is identified automatically based on the edge attribute, and the sub-pixel center location is accomplished with the leastsquare algorithm. It shows that the method is valid, practical, and has high precision by experiment. Meanwhile this method can meet the need of instrumentation of visual inspection because of easy realization and without man-machine interaction.     

小角度扩展相关性近似算法分析

本论文提出一种在多天线MIMO信道相关性建模中小角度扩展近似理论算法,并应用于分析MIMO系统性能。分析中分别对三种不同角能量分布情况下的空间相关性研发快速近似计算法,并同时提出双模(Bi-Modal)角能量分布情况下的近似运算。通过分析这些新方法的近似效率,可以得到计算简单、复杂度低、而且符合实际的MIMO相关信道矩阵,对系统级的快速高效计算法的研究和系统级的评估以及误差分析具有重要的意义。     

A Versatile Mixed-Signal Pin Approach for Cost-Effective Test of Automotive ICs

Integrated circuits (ICs) intended for increasingly sophisticated automotive applications bring unique test demands. Advanced ICs for applications such as highly integrated automatic braking system (ABS) and airbag controllers combine high voltage digital channels, significant VI demands and precise timing capability. Along with continued missioncritical reliability concerns, the trend toward higher voltage operation and increased device integration requires specialized test capabilities able to extend across the wide operating ranges found in automotive applications. Among these capabilities, automotive test requirements increasingly dictate a need for a cost-effective versatile mixed-signal pin electronics with very high data rates reaching up to 50MHz with a voltage swing of-2 V to +28 V.     

Optical vibration and deviation measurement of rotating machine parts

It is of interest to get appropriate information about the dynamic behaviour of rotating machinery parts in service. This paper presents an approach of optical vibration and deviation measurement of such parts. Essential of this method is an image derotator combined with a high speed camera or a laser doppler vibrometer （LDV）.     

INTEGRATION OF OPTICAL AND WIRELESS NETWORKS

正For a long time,optical and wireless systems/net-works are developed in separate communities witha few attempts for in-depth convergence.In fact,it prom-ises many advantages to combine the optical and wire-less technologies in the levels of systems and networks.Recently,both academia and industry have made manyefforts to enter a new phase of development to take op-tical and wireless systems as fully integrated networks.To provide high bandwidth and reliable service for bothfixed and mobile users,a well-designed network must     

社长序言（英文）

正Happy New Year!As we step into a new year,we take a look back at the key feature topics covered in China Communications over the past 12 months and set out our expecta-     

云计算专题（英文）

正Cloud computing is a novel computing paradigm that utilizes remote cloud resources to achieve a high-performance computation.Cloud provides infrastructure,platform and software as different on-demand services.China has made remarkable progress in cloudbased products and operating system technology.The government,enterprises and research institutions are all active in the development of cloud computing-related projects.Despite the progress,many important problems     

Call for Papers—Feature Topic,Vol.12,No.3,2015

正Smart Grid Communications The electric power industry is undergoing profound changes as the industry aims to capture the promise of a smart grid for a sustainable energy future.Enabled by the advanced sensing devices such as Phasor Measurement Units(PMUs),increasingly powerful