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Color Realization of Reflective Electronic Display Using Particle-Moving Method

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3 Author(s)
Dong-Jin Lee ; Electrical and Computer Engineering, University of Seoul, Republic of Korea ; Byung-Eun Park ; Young-Cho Kim

We propose a color realization method of a reflective display based on quick response-liquid powder display (QR-LPD). We use the particle-moving method in order to address the color particles cyan, magenta, yellow, and black (CMYK) into their respective cells. We fabricated a color addressed reflective display panel using indium-tin-oxide (ITO) glass with a rib width of 15 μm, a cell size of 300 μm × 300 μm, an average particle diameter of 8 μm, and a particle charge to mass ratio (q/m) from +8.5 μC/g to -4 μC/g. Most particles are inserted into their cells on the upper substrate, with non-movable particles removed in a previous step. The fabricated color panel shows a well-addressed CMYK array in microscopic photographs. An additional color display is fabricated using line-by-line addressing in order to facilitate the addressing process.

Published in:

Journal of Display Technology  (Volume:8 ,  Issue: 9 )