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P‐67: Simulation of Backlight Using Bidirectional Scattering Distribution Function
Author(s) -
Choi Myong Jo,
Han Jae Jung,
Kim Hee Cheoul,
Jung Young Jin,
Oh Young Sik,
Moon Jeong Min,
Kim Gi Bin,
Lee Jae Won
Publication year - 2010
Publication title -
sid symposium digest of technical papers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.351
H-Index - 44
eISSN - 2168-0159
pISSN - 0097-966X
DOI - 10.1889/1.3499993
Subject(s) - backlight , diffuser (optics) , optics , scattering , luminance , reflector (photography) , light scattering , physics , liquid crystal display , light source
BSDF (Bidirectional Scattering Distribution Function) has been used in order to predict exact optical characteristic of BLU (Backlight Unit). BSDF implies real scattering characteristics, and measured using test equipment of Goniometer type and compared simulation results with measuring data. Simulation was performed for direct‐type LED BLU and CCFL BLU by applying BSDF for diffuser sheet, diffuser plate, and reflector. Accuracy of total flux and luminance, viewing angle, image, etc. was increased and simulation result was obtained in a short time using BSDF assuming multiple sheets as one sheet.