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http://dx.doi.org/10.3807/JOSK.2014.18.5.538

Simulation Study on the Minimization of Moiré Patterns Caused by Microlens Array Films for Backlight Applications  

Joo, Byung-Yun (Department of Mechanical Engineering, Korea University of Technology and Education)
Ko, Jae-Hyeon (Department of Physics, Hallym University)
Publication Information
Journal of the Optical Society of Korea / v.18, no.5, 2014 , pp. 538-545 More about this Journal
Abstract
Microlens array (MLA) films have been used as brightness-enhancement components in many illumination systems, such as a backlight, which should meet the industrial needs of low cost and high brightness performance. A hexagonally-arranged MLA (HA-MLA) was chosen due to its high filling factor, which was a prerequisite for achieving high brightness-enhancement capability. The moir$\acute{e}$ fringes produced in a film stack composed of two HA-MLA were investigated, under four different lens configurations, by optical simulation. It was found that randomizing the lens configuration, while keeping the filling factor high, was effective way to develop high-gain MLA films for backlight applications.
Keywords
Moir$\acute{e}$; Micro lens array; Backlight; Optical simulation;
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Times Cited By KSCI : 5  (Citation Analysis)
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