Optical properties of visible-light excited phosphor sheet (Veps) system

Bo Wen Xiao, Chien Hsiang Hung, Hsin Tao Huang, Yi Pai Huang, Chung-Hao Tien, Chuang Chuang Tsai, Han Ping D. Shieh, Jerry Chen, Jeremy Lin, Win Chi Chang

Research output: Contribution to journalConference articlepeer-review

7 Scopus citations


The optical properties in Visible-light Excited Phosphor Sheet (VEPS) system were discussed and calculated. Different to the conventional LED backlight with white LEDs, VEPS system applies blue LED chips to excite the extrinsic flat YAG-phosphor layer to perform uniform and flat lighting, that can further reduce the backlight thickness. A theoretical model was developed to optimize the structure of VEPS system. Consequently, the optimized result was demonstrated on the small-sized VEPS module.

Original languageAmerican English
Pages (from-to)1034-1037
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Issue number1
StatePublished - 2009
Event2009 Vehicles and Photons Symposium - Dearborn, MI, United States
Duration: 15 Oct 200916 Oct 2009


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