標題: Square Column Structure of High Efficiency, Reliable, Uniformly Flexible LED Devices
作者: Lin, Chih-Hao
Pai, Yung-Min
Kang, Chieh-Yu
Lin, Huang-Yu
Lee, Chun-Fu
Chen, Xin-Yin
Tu, Hsien-Hao
Yang, Jin-Jia
Chen, Cheng-Huan
Lin, Chien-Chung
Lee, Po-Tsung
Sher, Chin-Wei
Kuo, Hao-Chung
光電系統研究所
光電工程學系
光電工程研究所
Institute of Photonic System
Department of Photonics
Institute of EO Enginerring
關鍵字: optics;light emitting diodes;flexible
公開日期: 1-Dec-2018
摘要: This study demonstrates that flexible white LEDs, doped with diffusion particles and with a square column structure, have excellent luminosity, uniformity, and bending reliability. This large area (5 cm x 5 cm) square column flexible device had a smaller thickness (2 mm), and enhancements in both luminous efficiency (29.5%) and uniformity (44.6%) compared to the characteristics of the 6 mm reference sample. Optimization of the reflective layer coating for the square column, flexible white LED was achieved with a higher luminous efficiency (171 lm/w) and uniformity (92%). We designed a novel lightning bolt electrode to improve reliability and bendability. After the bending test, the blue flexible LED had a lower bending diameter (10 mm) but more bending circles (increased to 2000 times.
URI: http://dx.doi.org/10.3390/cryst8120472
http://hdl.handle.net/11536/148661
ISSN: 2073-4352
DOI: 10.3390/cryst8120472
期刊: CRYSTALS
Volume: 8
Appears in Collections:Articles


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