液晶与显示Issue(6)：1101-1105,5.DOI:10.3788/YJYXS20142906.1101
直下式 LED 背光模组的超薄设计
Ultra-thin design of direct-lit backlight unit
摘要
Abstract
In order to reduce optical distance (OD)and realize ultra-thin design of direct-lit LED back-light module,this paper proposes a kind of diffuser plate with prism-based micro-structure on the bot-tom.The optical theoretical analysis is first performed on the prism-based micro-structure,which proves to be feasible to reduce the OD.The prism-based micro-structure is then practically tested and utilized in 81.3 cm (32 in)LED backlight.Experimental results show that the diffuser plate with prism micro-structure has effect on increasing the diameter of LED shadow by about 10% and reducing OD.The OD of the prototype with 32 in LED BLU is reduced from 13 mm to 1 1.8 mm.Such diffuser plate with prism-based micro-structure can help to realize the ultra-thin design.关键词
直下式LED背光模组/环形逆棱镜微结构/超薄设计Key words
direct-lit LED backlight unit/annular prism micro-structure/ultra-thin design分类
信息技术与安全科学引用本文复制引用
李德君,刘刚,吕国强,方旭东,冯奇斌..直下式 LED 背光模组的超薄设计[J].液晶与显示,2014,(6):1101-1105,5.基金项目
安徽省2012科技计划资助项目(No．1206c0805007) （No．1206c0805007）
