Micro-holographic light guide plates in LED BLUs

被引：0

作者：

Park, Seung Ryong ^{[1
]}

Kwon, Oh Jang ^{[1
]}

Song, Seok-Ho ^{[1
]}

Lee, Hong-Seok ^{[2
]}

Choi, Hwan Young ^{[2
]}

机构：

[1] Hanyang Univ, BK21 Ctr, Dept Phys, Mt 17, Seoul, South Korea

[2] Samsung Adv Inst Technol, Display Device & Mat Lab, LCD Opt & Mat PT, Yongin, Gyeonggi Do, South Korea

来源：

IDW '06: PROCEEDINGS OF THE 13TH INTERNATIONAL DISPLAY WORKSHOPS, VOLS 1-3 | 2006年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We suggest a micro-holographic light guide plate (mu-HLGP) structure for LED backlight units. A 2-dimesional array of micro-holographic gratings is fabricated on top surface of the light guide plate with a wide range of conical grating directions. Optimization in orientation of the micro-holographic gratings is performed by rigorous coupled-wave analysis, leading to a characteristic function for deriving optimal conical-angle distribution of grating direction. Micro-holographic lithography and UV embossing are used to fabricate the micro-gratings with different conical angles. Hot-spot images and light-propagation line-patterns which were seriously occurred in LED BLUs are successfully eliminated in our mu-HLGP, when a LED is placed at a corner of the light guide plate.

引用

页码：1025 / +

页数：2

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