Fig. 1. Display structure and working principle of electrophoretic electronic paper^［2］

Fig. 2. Schematic diagram of PMMA coated TiO₂ nanoparticles^［5］

Fig. 3. Schematic diagram of grafting method^［8］

Fig. 4. SEM images of pristine TiO₂ (a) and PMMA-co-MAA/TiO₂ composite particles (b）^［9］

Fig. 5. Synthetic route for GO-2-me-imi-Co^［15］

Fig. 6. （a）Synthesis process of ink particles；（b）SEM image of the pure green pigment；（c）SEM image of the green ink particles；（d）SEM image of the low magnification green ink particles^［17］.

Fig. 7. （a）Synthesis of PS/DVB-PMMA and PS/DVB-PAA by continuous dispersion polymerization；（b）Stable chain OLOA1200 grafted onto PS/DVB-PMMA particles by amidation；（c）Stable chain Kraton L-1203 grafted onto PS/DVB-PAA particles by esterification^［18］.

Fig. 8. (a）Schematic diagram of synthetic process of silica coated pigment composite particles；(b）Appearance of color e-ink，zeta potential and mobility of color electrophoretic particles^［19］.

Fig. 9. Surface modification of carbon black particles by oleic acid^［19］

Fig. 10. Synthetic diagram for ［ARIm］［Br］/SiO₂ particles^［20］

Fig. 11. Schematic of the microcapsule preparation method^［37］

Fig. 12. Coaxial spraying device for EPD microcapsule preparation^［39］