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Parametric study using distributed computing and genetic algorithm in TFT‐LCD projector
Author(s) -
Lin Samuel IEn,
Lin S. C.,
Lo YunChien
Publication year - 2013
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1002/jsid.205
Subject(s) - liquid crystal display , projector , brightness , computer science , gray code , rendering (computer graphics) , optics , computer vision , backlight , digital light processing , viewing angle , computer graphics (images) , liquid crystal on silicon , artificial intelligence , parametric statistics , projection (relational algebra) , algorithm , physics , mathematics , statistics
We present an analysis of the parameters affecting light engines in liquid crystal display (LCD) projectors, using actual LCD projectors as examples. The significant parameters affecting light engines in LCD projectors are evaluated using the light uniformity as the determining standard. Optimization is performed on those parameters that affect the uniformity as well as the rendering effects of the projectors, by employing our own distributed genetic algorithm. The rotation angle of the collimator and its position are shown to improve the uniformity of the LCD projection, but we find that their effect on improving the brightness is not significant. Increased length of a projectors' light tube promotes better integration results. In our study, we effectively improved the performance index of an LCD projector, increasing projection uniformity by 4% (to 91.5%) and the brightness by 12% (to 7.9 lm).