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LED微投影系统设计与红光LED微显示阵列的制作研究 学位论文  OAI收割
中国科学院大学(中国科学院长春光学精密机械与物理研究所): 中国科学院大学(中国科学院长春光学精密机械与物理研究所), 2018
作者:  
冯思悦
  |  收藏  |  浏览/下载:20/0  |  提交时间:2019/09/23
New LED illumination optical engine for micro-projection display (EI CONFERENCE) 会议论文  OAI收割
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optoelectronic Materials and Devices for Detector, Imager, Display, and Energy Conversion Technology, April 26, 2010 - April 29, 2010, Dalian, China
作者:  
Meng Z.;  Meng Z.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
A new optical engine consisting of LEDs  rectangular CPC  rectangular lens array and micro display chip DMD is designed by using of KOLA illumination algorithm for micro-projection display. Detail description and analysis of the rectangular CPC and rectangular lens array are provided. The influence due to the size of rectangular CPC and rectangular lens array is analysed for illuminance uniformity on the DMD chip and light energy efficiency of the optical engine system by software ZEMAX. Based on the analysis of parameter of rectangular lens array  the size of rectangular lens array more decrease the illumination uniformity. Experimental results show that the proposed illumination light optical engine can obtain perfect rectangular focula with higher light uniformity more than 90 % and higher energy efficiency of 40 % to meet the needs of micro-projection display  at the same time the designed illumination optical engine compared with other uniformizing light algorithm have advantages such as: lesser capacity  high illumination uniformity. 2010 Copyright SPIE - The International Society for Optical Engineering.  
LED optical engine based on rectangular CPC for micro-projection display (EI CONFERENCE) 会议论文  OAI收割
4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, November 19, 2008 - November 21, 2008, Chengdu, China
作者:  
Meng Z.;  Meng Z.
收藏  |  浏览/下载:18/0  |  提交时间:2013/03/25
With applications in digital display  consumer electronics  medicine  automotive lighting  traffic signals  and general illumination  the light-emitting diode (LED) is the world's most efficient light source being mass produced today[1]. However  high cost is the main factor restricting widespread application of LED lighting  and the packaging is the most expensive aspect of LED products. Light emitting diodes (LED) are regarded as the most important light sources in solid-state lighting for their advantages in energy efficiency  long life  vivid colors  high reliability  environmental protection  safety and multiple applications. However  application of LEDs in projection display exist many questions such as low illuminance uniformity and low energy efficiency by reason of luminescence distribution and constructure specificity for LED  the study on application of LED in the micro-projection display and projection display is reported[2-8]. Considering the question mensioned above the rectangular CPC(Compound Parabolic Concentrator) system with three-color LED is applied in the projection display. 2009 SPIE.  
Optimized design on high-power GaN-based Micro-LEDs - art. no. 684108 会议论文  OAI收割
conference on solid state lighting and solar energy technologies, beijing, peoples r china, nov 12-14, 2007
Fan, JM; Wang, LC; Guo, JX; Yi, XY; Liu, ZQ; Wang, GH; Li, JM
收藏  |  浏览/下载:35/0  |  提交时间:2010/03/09
Study on the fabrication of orange micro-LED arrays for display (EI CONFERENCE) 会议论文  OAI收割
ICO20: Display Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Li J.;  Wang W.;  Wang W.;  Zhao L.;  Li J.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
Arrays of micro-sized LEDs which can be used as microdisplays have been demonstrated in recent years. In order to reduce the input and output connections to the arrays  we employ a matrix addressable architecture  in which all the pixels in each row are connected by a common metal line on the top of the window layer (top electrode) or at the base of substrate(bottom electrode). Decreasing the size of electrodes makes for minimizing the size of device. The optic and electric isolation and good ohmic contact are also helpful to obtain superior optical and electrical performance. We describe a procedure of fabrication of AlGalnP-based orange micro-LED by wet etching. The structure of devices is etched using both isotropic and anisotropic etchant. The pixel size is about 16um 20um  and there are 1000 818 pixels in the light emitting chip whose diagonal is 1-in.