Fabrication of Color Electronic Paper Display by Using the Charged Particles
We fabricated a color electronic paper display (EPD) by using the charged particles. The display has 160 (×RGBW) × 480 array of pixels and four inch diagonal viewing area. Color filter technology was applied for coloration of the EPD. The fabrication process was as follows. First, ITO electrodes were patterned on top and bottom substrates. Ribs were formed to define pixels on the bottom substrate, and color filters were deposited on the ITO of top substrate. The charged particles were put into the pixel arrays defined by the ribs. Finally, the top substrate having the color filters was assembled on the bottom substrate. The resolution was 160 (×RGBW) × 480 with 4×4 inch area. The color gamut was about 2.49%, and the response time was 0.25 msec at 90 V. The contrast ratio was 2.36. The color EPD successfully demonstrated to display some images.
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Document Type: Research Article
Publication date: 2012-04-01
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