| 大尺寸LED背光源网点的设计及优化(英文) |
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| 引用本文： | 郝冬晶,钱可元,罗毅.大尺寸LED背光源网点的设计及优化(英文)[J].液晶与显示,2011,26(5):598-604. |
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| 作者姓名： | 郝冬晶 钱可元 罗毅 |
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| 作者单位： | 1. 清华大学深圳研究生院半导体照明实验室,广东,深圳,518055
2. 清华大学深圳研究生院半导体照明实验室,广东,深圳,518055;清华大学集成光电子国家重点实验室,北京,100084 |
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| 基金项目： | 广东省发展平板显示产业财政扶持基金 |
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| 摘 要： | 基于白光LED侧入式背光结构,设计了多光源四边入射、导光板厚度为4mm、对角线为1.066 8m的液晶背光模组,采用导光板底面印刷网点的方法导出光线。针对大尺寸导光板网点设计复杂、计算机辅助设计中光线模拟耗时的缺点,采用简化的光源仿真模型,减少了仿真计算时间,网点在实际模型下依然有效;同时采取了网点自动优化技术,通过优化使导光板的效率和均匀度达到最理想的状态,亮度均匀度达到了90%,光能利用效率在50%左右。采用相同方式设计了对角线为1.422 4m的液晶背光模组,亮度均匀度可达90%,光能利用率在50%左右,总耗时1h,较普通方法减少了优化时间。
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| 关 键 词： | 大尺寸 背光源 导光板 网点 LED |
Design and Optimization of Dot-Pattern for Large Scale LED Backlight Unit |
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| HAO Dong-jing,QIAN Ke-yuan,LUO Yi.Design and Optimization of Dot-Pattern for Large Scale LED Backlight Unit[J].Chinese Journal of Liquid Crystals and Displays,2011,26(5):598-604. |
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| Authors: | HAO Dong-jing QIAN Ke-yuan LUO Yi |
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| Affiliation: | HAO Dong-jing1,QIAN Ke-yuan1,LUO Yi1,2 (1.Semiconductor Lighting Lab,Graduate School at Shenzhen,Tsinghua University,Shenzhen 518055,China,2.State Key Lab on Integrated Optoelectronics,Beijing 100084,China) |
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| Abstract: | Adopting LED as the light source, LCD TV has significant advantages over adopting Cold Cathode Fluorescent Lamp (CCFL). Light guide plate (LGP) with a two-dimensional array of dots scheme is the key to the design of the LED backlight unit (BLU). A LED BLU with 1.066 8 m in diagonal and 4 mm in thickness, using incidence structure with four-side light sources is proposed in this paper. Considering the complexity and time-consuming process of the large scale LGP dot-pattern design, the method of simplified mo... |
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| Keywords: | large-scale LED backlight unit light guide plate dot-pattern LED |
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