Two particle electronic ink system is made up of millions of tiny microcapsules, each about the diameter of a human hair. Each microcapsule contains negatively charged white particles and positively charged black particles suspended in a clear fluid. When a positive or negative electric field is applied, corresponding particles move to the top of the microcapsule where they become visible to the viewer. This makes the surface appear white or black at that spot.
Black&white
4.2 Inch Balck White E-paper Display
Size4.2 Inch
Exterior(mm)91 (H)×77 (V)
ColorBlack/White
Visual field(mm)84.8(H)×63.6(V)
DPI120
Resolution(px)300(H)×400(V)
Connection type SPI
Pixel distance(mm)0.212×0.212
Working voltage 3.0V
ICSSD1683
Operation temperature0-50℃
Substrate Type Glass base
Weight(g)16.1±0.3
DKE 东方科脉
DKE成立于2005年，十多年来一直致力于电子纸市场。现已成为集研发、设计、生产为一体的电子纸显示技术产品的专业制造商和服务商。如今，DKE也是全球电子纸行业的核心企业之一，在浙江嘉兴、辽宁大连市和越南拥有四个生产基地，员工总数超过千人。
How e-paper works
| E-paper Series | Color |
| Black&White | Black,White |
| Tri-Color | Black, White, Red, |
| Four-Color | Black, White, Red, Yellow |
| N-Color | Black, White, Red, Yellow, Blue, Green, Orange |
| Flexible | Bendable, Thin and Robust |
| Segment | Customization Supported |
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