Effect of a light guide plate with lenticular-arrayed surface on optical output for backlight and illumination application

Tun Chien Teng, Li Wei Tseng

研究成果: 書貢獻/報告類型會議論文篇章

2 引文 斯高帕斯(Scopus)

摘要

In this paper, we investigated the optical output characteristic of the light guide plate (LGP) with microstructures engraved by a CO2 laser, which is for edge-lit backlight of liquid crystal display or illumination. Especially, the laser-engraving method is suitable for the slim large-sized LGP used in LED TV backlight, and the engraved microstructure has polished surface to contribute to better optical efficiency. For seeking higher optical efficiency, we adopted a LGP with lenticular-arrayed surface (LAS LGP) as the experimental substrate. In order to investigate the effect of the lenticular-arrayed surface on optical output characteristic for the different kinds of the engraved microstructures, we used the laser to directly engrave the flat surface (opposite to the lenticular-arrayed surface) of the LAS LGP with different kinds of microstructures as experimental samples; each sample has one kind of the engraved microstructures on its flat surface. Similarly, we also engraved the same kinds of the microstructures on the flat LGP as a controlled group for comparison. The cross-section profiles of the engraved microstructures on both LAS LGP and flat LGP were measured by a laser confocal microscope. All the samples were further measured for spatial and angular luminance by the BM7 and Conoscope, respectively. In addition, both the experimental data and simulation results were demonstrated and compared to each other in this paper.

原文英語
主出版物標題LED-Based Illumination Systems
發行者SPIE
ISBN(列印)9780819496850
DOIs
出版狀態已發佈 - 2013
事件LED-Based Illumination Systems - San Diego, CA, 美国
持續時間: 2013 八月 262013 八月 26

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
8835
ISSN(列印)0277-786X
ISSN(電子)1996-756X

其他

其他LED-Based Illumination Systems
國家/地區美国
城市San Diego, CA
期間2013/08/262013/08/26

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學
  • 電腦科學應用
  • 應用數學
  • 電氣與電子工程

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