Square Column Structure of High Efficiency, Reliable, Uniformly Flexible LED Devices
AbstractThis 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 × 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. View Full-Text
Share & Cite This Article
Lin, C.-H.; Pai, Y.-M.; Kang, C.-Y.; Lin, H.-Y.; Lee, C.-F.; Chen, X.-Y.; Tu, H.-H.; Yang, J.-J.; Chen, C.-H.; Lin, C.-C.; Lee, P.-T.; Sher, C.-W.; Kuo, H.-C. Square Column Structure of High Efficiency, Reliable, Uniformly Flexible LED Devices. Crystals 2018, 8, 472.
Lin C-H, Pai Y-M, Kang C-Y, Lin H-Y, Lee C-F, Chen X-Y, Tu H-H, Yang J-J, Chen C-H, Lin C-C, Lee P-T, Sher C-W, Kuo H-C. Square Column Structure of High Efficiency, Reliable, Uniformly Flexible LED Devices. Crystals. 2018; 8(12):472.Chicago/Turabian Style
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. 2018. "Square Column Structure of High Efficiency, Reliable, Uniformly Flexible LED Devices." Crystals 8, no. 12: 472.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.