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Color filters for reflective display with wide viewing angle and high reflectivity based on metal dielectric multilayer

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9 Author(s)
Chung, Deukseok ; Display Devices Lab, Samsung Advanced Institute of Technology, Samsung, San 14, Nongseo-dong, Giheung-gu, Yongin-si, Gyeonggi-do, South Korea ; Shin, Changgyun ; Song, Byonggwon ; Jung, Myonghoon
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We report high performance reflective color filters based on one-dimensional metal-dielectric multilayer. Wide viewing angle of ±50°, far beyond that with conventional all-dielectric multilayers, is achieved while maintaining approximately 100% peak reflectance and color reproducibility. Reflectance of 40% in white mode and color gamut of 47% to the United States National Television Systems Committee (NTSC) standard is demonstrated. The proposed color filter is integrated into 3.5-in. color reflective display and shows 30% increase in brightness than conventional dye color filters.

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Applied Physics Letters  (Volume:101 ,  Issue: 22 )