Structure of an E-Paper display
E-Paper displays use the principle of electrophoresis. Here, microcapsules are used that are filled with a transparent, viscous polymer. This polymer contains white (positively charged) and black (negatively charged) particles that can be moved to the top depending on the polarity of the voltage at the electrodes. The microcapsules have an average diameter of just about 40 µm. By temporarily applying an electrical voltage once, the alignment of the microcapsules can be enabled and content can be displayed. The orientation of the capsules - and thus the respective content - remains constant for years or until a voltage is applied again. Like real paper, E-Paper displays reflect light, which means they are entirely passive, reflective displays.
Features
- available sizes: up to 42"
- in A-formats available e.g. A2
- energy-saving: power only needs to be applied to change the image
- colours: black/white or red/yellow as standard; up to 4096 colours in total possible
- also available in flexible versions
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