Encapsulated-dye all-organic charged colored ink nanoparticles for electrophoretic image display
Sun Wha Oh1, Chang Woo Kim2, Hwa Jin Cha3
1Department of Chemistry Pukyong National University Busan, 608-737 (Republic of Korea).
Advanced Materials (Deerfield Beach, Fla.)
|November 8, 2014
Summary
Researchers developed high-mobility electrophoretic ink nanoparticles using dispersion polymerization. These all-organic particles offer a cost-effective solution for future electronic ink displays.
Area of Science:
- Materials Science
- Polymer Chemistry
- Nanotechnology
Background:
- Electrophoretic displays (e-displays) are widely used in electronic paper.
- Current e-display fabrication can be costly and complex.
- Development of novel electrophoretic ink nanoparticles is crucial for cost reduction.
Purpose of the Study:
- To fabricate electrophoretic ink nanoparticles with high electrophoretic mobility.
- To demonstrate the color-switching capability of these nanoparticles in test cells.
- To explore the potential of these particles in reducing e-ink fabrication costs.
Main Methods:
- Dispersion polymerization was employed to synthesize the electrophoretic ink nanoparticles.
- The synthesized nanoparticles were incorporated into test cells.
- Bias voltage was applied to the test cells to observe color switching.
Main Results:
- Electrophoretic ink nanoparticles with high mobility were successfully fabricated.
- The color of the test cells could be effectively changed by applying a bias voltage.
- The developed particles are all-organic and encapsulated-dye based.
Conclusions:
- The successful fabrication of high-mobility electrophoretic ink nanoparticles is demonstrated.
- These all-organic, encapsulated-dye particles show promise for cost-effective e-ink applications.
- The developed technology is expected to reduce the fabrication cost of electrophoretic image display cells.
