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1. 总参陆航部军事代表局驻南京地区军事代表室, 江苏南京 211100
2. 中航华东光电有限公司, 安徽芜湖 241002
3. 特种显示国家工程实验室,安徽 芜湖,241002
4. 国家特种显示工程技术研究中心,安徽 芜湖,241002
5. 安徽工业大学电气信息学院, 安徽马鞍山 243002
[ "杨宗阳(1982-),男,河南原阳人,硕士,主要从事航空电子方面的工作。E-mail:624336619@qq.com" ]
[ "章小兵(1972-),男,安徽马鞍山人,教授,主要从事电路设计方面的工作。E-mail:jksq66@163.com" ]
[ "刘波(1979-),男,安徽五河人,副研究员,主要从事研发管理方面的工作。E-mail:liubo1220@gmail.com" ]
[ "祁凌云(1987-),女,山东高唐人,硕士,主要从事“六性”设计方面的工作。E-mail:qilingyun0625@163.com" ]
收稿日期:2014-07-14,
修回日期:2014-11-17,
网络出版日期:2014-11-17,
纸质出版日期:2015-10-05
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杨宗阳, 刘波, 章小兵, 祁凌云. 彩色LED背光源调频调光与混色方法[J]. 液晶与显示, 2015,30(5): 872-876
YANG Zong-yang, LIU Bo, ZHANG Xiao-bing, QI Ling-yun. Colorful LED backlight FM & diming and color mixing method[J]. , 2015,30(5): 872-876
杨宗阳, 刘波, 章小兵, 祁凌云. 彩色LED背光源调频调光与混色方法[J]. 液晶与显示, 2015,30(5): 872-876 DOI: 10.3788/YJYXS20153005.0872.
YANG Zong-yang, LIU Bo, ZHANG Xiao-bing, QI Ling-yun. Colorful LED backlight FM & diming and color mixing method[J]. , 2015,30(5): 872-876 DOI: 10.3788/YJYXS20153005.0872.
介绍了一种使用橙、绿、蓝三基色LED灯作为背光灯的平板显示模块背光源。本背光源亮度的调节通过变频调光技术实现。最终的标准白色光利用这种三色灯的调光脉冲高电平时间混色的方法得到
并按照光传感器输出的数据来微调三色灯调光脉冲高电平时间。这种调光与混色的方法可以有效改善由于温度变化带来的背光源亮度、色温变化与色坐标漂移。
A kind of panel display module source using RGB LED as backlight is introduced in this paper. Frequency diming method is used to adjust backlight brightness. The final standard white light is gained by RGB diming pulse high level mixing color method. And besides
RGB diming pulse high level timing is tuned according to data from color sensor. Using the method
backlight brightness
color varies and coordinates drifts caused by temperature varies can be effectively improved.
Pieter G, Noborn K, Robert F M, et al. LED light source for backlighting with integrated electronics:United States,US 2007/0046485 A1[P]. 2007-03-01.[2] Yeon-Tack Y. Backlight unit and driving method using the same:United States,US 2007/0097067 A1[P]. 2007-05-03.[3] 郭鹏.恒压型白光LED驱动电路研究与实现[D].杭州:浙江大学,2006. Guo P. Constant voltage white light LED driving circuit research and realization[D].Hangzhou:Zhejiang University Mater Dissertation,2006:23-25.(in Chinese)[4] 王凤岩,许建平,贺明智.超高亮LED的驱动[J].电源技术应用,2005(9):43-48. Wang F Y,Xu J P,He M Z. Exceed bright LED driving[J].Power Technique Application,2005(9):43-48. (in Chinese)[5] Perry J M. LED brightness control system for a wide-range of luminance control:United States,US 6,987,787 B1[P]. 2006-11-17.[6] Walter P. Apparatus and method to provide a hybrid linear/switching current source, such as for high-efficiency, wide dimming range light emitting diode(LED) backlight:United States,US 2008/0265793 A1[P]. 2008-10-30.[7] Albert L R, Ryan J R. Liquid crystal display backlight circuit:United States, US 6,392,358 B1[P]. 2002-05-21.[8] 刘波,章小兵.使用多色LED补色的背光源[J].液晶与显示,2010,25(5):699-701. Liu B, Zhang X B. Backlight unit with multi-color LED used for color complementation[J].Chinese Journal of Liquid Crystals and Displays, 2010,25(5):699-701.(in Chinese)
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