| 大尺寸液晶电视用LED背光源的设计与制作 |
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| 引用本文： | 刘敬伟,王刚,马丽,张凯亮,张丽蕾,王庆江,万丽芳.大尺寸液晶电视用LED背光源的设计与制作[J].液晶与显示,2006,21(5):539-544. |
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| 作者姓名： | 刘敬伟 王刚 马丽 张凯亮 张丽蕾 王庆江 万丽芳 |
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| 作者单位： | 京东方科技集团股份有限公司,中央研究院,北京,100016 |
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| 基金项目： | 北京市科委科技计划资助项目(No.D0306006000091) |
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| 摘 要： | 设计和制作了一款66cm(26in)液晶电视用LED背光源。模拟出LED的光学分布,以此为基础模拟出LED阵列的光强和颜色分布,得到适合的背光源厚度尺寸。在实际制作中,采用高效的驱动电路对LED阵列进行驱动,利用铝制散热片为背光源提供必须的散热。测试的结果,在整体背光源功耗为150W时,中心亮度达到13390cd/m2,均匀度为84.1%,色彩还原性达到NTSC标准102%,远远超过CCFL背光源的70%。
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| 关 键 词： | LED 背光源 液晶电视 |
| 文章编号： | 1007-2780(2006)05-0539-06 |
| 修稿时间： | 2006年7月19日 |
Design and Fabrication of Large Size LED BLU for LCD TV |
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| LIU Jing-wei,WANG Gang,MA Li,ZHANG Kai-liang,ZHANG Li-lei,WANG Qing-jiang,WAN Li-fang.Design and Fabrication of Large Size LED BLU for LCD TV[J].Chinese Journal of Liquid Crystals and Displays,2006,21(5):539-544. |
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| Authors: | LIU Jing-wei WANG Gang MA Li ZHANG Kai-liang ZHANG Li-lei WANG Qing-jiang WAN Li-fang |
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| Abstract: | A 66 cm(26 in) LED BLU for LCD TV was designed and fabricated. Based on the light distribution of LED, the brightness and color distribution of BLU were simulated, and a suitable thickness was obtained accordingly. LED array was lighted by a high efficient driver circuit, and cooled by an aluminum based thermo diffuser. As results, the central brightness of the BLU was tested to be 13 000 cd/m~2 with a uniformity of 84 % at 150 W power consumption. The color gamut of LCD module with the LED BLU was about 102 % which is much higher than the value of 70 % for normal LCD with CCFL BLU. |
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| Keywords: | LED backlight LCD TV |
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