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
3.1 Inch Balck White E-paper Display
Size3.1 Inch
Outline Size(mm)45.83(H)×80.78 (V)
ColorBlack/White
View Area(mm)38.81(H)×68.38 (V)
DPI110
Resolution(px)168(H)×296(V)
Interface SPI
Pixel (mm)0.231×0.231
Voltage3.0V
Driver ICSSD1680
Temperature0-50℃
Substrate Glass base
Weight(g)6.5±0.5
DKE Holding Company Limited
DKE was founded in 2005 and has dedicated continuously and diligently for over a decade to the E-paper market. Now we are a professional manufacturer and service provider of E-paper display technology products integrating R&D, design, production, and sales of many E-paper display modules. Now DKE is also one of the core enterprises of the global E-paper industry. DKE boasts four manufacturing bases in Jiaxing City, Zhejiang Province， Dalian City, Liaoning Province, and Vietnam， with a total number of employees of over one thousand.
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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