| 半户外液晶显示用高亮直下式LED背光设计 |
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| 引用本文： | 范曼宁,张国义,郝茂盛,陈云峰. 半户外液晶显示用高亮直下式LED背光设计[J]. 液晶与显示, 2012, 27(1): 47-50 |
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| 作者姓名： | 范曼宁 张国义 郝茂盛 陈云峰 |
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| 作者单位： | 北京大学物理学院;彩虹集团上海蓝光科技有限公司 |
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| 基金项目： | LED背光源技术开发及产业化(发改办高技[2009]No.2223) |
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| 摘 要： | 开发了一款用于半户外液晶显示的117cm(46in)直下式背光结构,采用中功率、高显色指数的LED光源,在不使用发散透镜的情况下,使得光源阵列的混光距离在25mm以内,中心亮度可达到20 000cd/m2以上。通过对LED阵列的光学以及驱动和散热设计,实现了一种具有高亮度、高显色画质、散热好、低成本的直下式背光源的方案设计,为户外和半户外液晶展示屏应用提供了支持。
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| 关 键 词： | LED 背光源 直下式 高亮度 液晶显示 |
| 收稿时间： | 2011-07-14 |
Design of High Light Direct Type LED BLU for Semi-Outdoor LCD |
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| FAN Man-ning,ZHANG Guo-yi,HAO Mao-sheng,CHEN Yun-feng. Design of High Light Direct Type LED BLU for Semi-Outdoor LCD[J]. Chinese Journal of Liquid Crystals and Displays, 2012, 27(1): 47-50 |
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| Authors: | FAN Man-ning ZHANG Guo-yi HAO Mao-sheng CHEN Yun-feng |
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| Affiliation: | 1.Physics Institute,Beijing University,Beijing 100871,China2.IRICO Group Shanghai Epilight Ltd.,Shanghai 201210,China) |
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| Abstract: | A 117 cm(46 in) direct type BLU for semi-outdoor LCD is designed.Using 0.5 W High-Ra LED and without the packaging lens,the optical length can be within 25 mm and the centre lightness can be above 20 000 cd/m2.By optical,drive and thermal design,a direct type BLU design is implemented with feature of high lightness,nice display quality,good heat dissipation and low-cost,giving strong support to outdoor and semi-outdoor LCD-Exhibit use. |
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| Keywords: | LED BLU direct type high lightness LCD |
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