| 感光性树脂应用于LED平面自适应封装的最新研究 |
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| 引用本文： | 丁坤,饶海波,王玮.感光性树脂应用于LED平面自适应封装的最新研究[J].电子器件,2012,35(2):142-145. |
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| 作者姓名： | 丁坤 饶海波 王玮 |
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| 作者单位： | 电子科技大学光电学院,成都,610054 |
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| 基金项目： | 国家“863”计划项目(2006AA03A116);四川省应用基础研究项目(2008JY0051) |
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| 摘 要： | 采用感光性树脂+荧光粉进行LED平面自适应涂覆技术,实现了白光LED荧光粉涂层的平面化工艺,使器件出光的亮度、空间色度均匀性较之传统封装工艺器件有了明显的改善,光斑及单管间色度、亮度偏差均小于6%。综合PVA的感光和硅胶的物化、光学性能,在粉浆法工艺中采用乳化技术,实现了PVA+Silicone的多相结构的荧光粉平面涂层,有助于进一步改善荧光粉层的物化性能,而多相涂层有效折射率的提高更有利于提高器件的整体出光效率。
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| 关 键 词： | 白光LEDs 平面自适应涂层 PVA 感光性树脂 |
The Photosensitive Polymers Used in LEDs Planar Phosphor Coating of the Latest Research |
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| DING Kun
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RAO Haibo
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WANG Wei.The Photosensitive Polymers Used in LEDs Planar Phosphor Coating of the Latest Research[J].Journal of Electron Devices,2012,35(2):142-145. |
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| Authors: | DING Kun RAO Haibo WANG Wei |
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| Affiliation: | (School of Opto-Electronic Information,University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | The photosensitive polymers+phosphor for LED conformal coating is adopted to realize the white LED phosphor coating planarization process.This technology enables the device to give off bright light and more self color space than the traditional packaging process.Spot color between single tubes and the deviation of brightness is less than 6%.Integrated photosensitiveness of PVA and physical chemistry performance of silicone,and adopted emulsion technology in slip method process,we realize phosphor surface coating of PVA and silicone.This technology improves phosphor layer ’ s physicochemical properties and the improvement of effective refractive index of multiple phase coating is more helpful to raise whole luminous efficiency of device. |
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| Keywords: | white LEDs conformal coating PVA photosensitive polymers |
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