Two-Color Epaper Display

After refresh, the image is retained permanently even when power is cut – zero power consumption.

Typically black/white plus one accent color (e.g., red) to highlight warnings, price changes, etc.

Each refresh consumes only millijoules; a coin cell can drive tens of thousands of updates.

Reflective display – the brighter the ambient light, the clearer it is; no backlight, reads like real paper outdoors.

Optional plastic substrate for bendable or rollable forms, fitting labels, cards, and other irregular shapes.

Reflected light is isotropic – consistent brightness from any angle, no color shift.

Can update only partial areas (e.g., changing digits), reducing refresh time and further saving power.

Electronic shelf labels (ESL), warehouse management boards, smart luggage tags, electronic price tags, etc.