平面荧光灯背光模组设计  

Design of Back Light Module Based on Flat Fluorescent Lamp

作　　者：王海峰[1] 杨淑燕[2] 张凤生[1] 李智[1] 

机构地区：[1]青岛大学机电工程学院,山东青岛266071 [2]青岛理工大学机械工程学院,山东青岛266033

出　　处：《液晶与显示》2008年第3期377-381,共5页Chinese Journal of Liquid Crystals and Displays

摘　　要：平面荧光灯(FFL)本身为面光源,可以节省光学组件的使用,进而减少背光模组的厚度,顺应了液晶显示器(LCD)向大屏幕显示器市场进军的潮流。文章以介电隔板充氙荧光灯为例,介绍了FFL的发光原理,并进行了14cm(5.6in)平面荧光灯的结构设计和驱动电路设计。实验结果表明,所设计的FFL背光模组能够提供均匀平面光,且所提出的数字调光技术能够获得较宽的调光范围,对大屏幕LCD背光技术有借鉴意义。Flat fluorescent lamp （FFL） is a flat luminous source that can simplify the optical unit of back light modules, reduce the thickness of the whole back light unit, and meet the need of development in the market of large size liquid crystal displays （LCD）. This paper took focus on the xenon dielectric barrier discharge flat lamp. Based on the luminescence principle of FFL, the design of structure and drive circuit of 14 cm（5.6 in） FFL were discussed in detail. Experimental results indicated that this design can make FFL as a uniform luminance source, get a wider dimming range with the proposed digital dimming method, and give a hint on the research of large size LCD backlight technology.

关 键 词：平面荧光灯 背光模组 液晶显示器 数字调光 

分 类 号：TN141[电子电信—物理电子学] TM923.321[电气工程—电力电子与电力传动]