| 白光LED对直下式TV背光色域的影响 |
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| 引用本文： | 庄四祥,钱可元,李旭亮,黄冠志,祝炳忠,梁鸣娟. 白光LED对直下式TV背光色域的影响[J]. 液晶与显示, 2011, 0(4): 474-479 |
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| 作者姓名： | 庄四祥 钱可元 李旭亮 黄冠志 祝炳忠 梁鸣娟 |
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| 作者单位： | 东莞勤上光电股份有限公司;清华大学深圳研究生院半导体照明实验室; |
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| 基金项目： | 广东省发展平板显示产业财政扶持资金项目(No.20080902) |
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| 摘 要： | 白光LED背光源具有光学特性好、功耗低、寿命长、对比度高、驱动系统简便等优势,但并不是所有的LED产品都适合做背光光源。研究了液晶面板和不同的白光LED产品对色域的影响,指出只有通过选择适当波长的LED和与之相匹配的彩膜,才能得到较高的色彩还原性。一般照明用二波段LED产品由于形成混合峰,相互之间的制约使得其最高只能达到75.2%的NTSC色域;而对三波段LED产品,三波峰相对独立,故能实现较高的84.2%色域。
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| 关 键 词： | LED背光 白光LED TV色域 |
Effect of White LEDs on Gamut of TV with Direct Illumination-type LED Backlight |
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| ZHUANG Si-xiang,QIAN Ke-yuan,LI Xu-liang,HUANG Guan-zhi,ZHU Bing-zhong,LIANG Ming-juan. Effect of White LEDs on Gamut of TV with Direct Illumination-type LED Backlight[J]. Chinese Journal of Liquid Crystals and Displays, 2011, 0(4): 474-479 |
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| Authors: | ZHUANG Si-xiang QIAN Ke-yuan LI Xu-liang HUANG Guan-zhi ZHU Bing-zhong LIANG Ming-juan |
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| Affiliation: | ZHUANG Si-xiang1,QIAN Ke-yuan2,LI Xu-liang1,HUANG Guan-zhi1,ZHU Bing-zhong1,LIANG Ming-juan1 (1.Dongguan Kingsun Optoelectronic Co.Ltd.,Dongguan 523565,China,2.Graduate School at Shenzhen,Tsinghua University,Shenzhen 518057,China) |
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| Abstract: | Backlights based on white LEDs have significant advantages for liquid crystal display(LCD) such as good optical property,low power dissipation,long lifetime,high contrast,simple drive system and so on.However,not all LEDs are suitable for light source of backlights.The influence of liquid panel and different white LEDs on color gamut are investigated.Results showed that,to obtain high color gamut,LCD pannel and the corresponding LED light source are needed.Due to the mixed crest,2-band LEDs which used for i... |
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| Keywords: | LED backlight white LEDs TV color gamut |
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