Plastic Logic Launches Flexible 2.1" Legio Color E Ink Display
2.1" Legio Color display is powered by the Ultrachip UC8156 single-chip EPD controller and suitable for wearables.
If you are looking for a display that is particularly suitable for smart cards, wearables, and labels where color is a benefit, then this EPD will come to the rescue. Plastic Logic has launched its first flexible active-matrix electrophoretic display based on the Ultrachip UC8156 single-chip EPD controller with integrated drivers and power management.
The Legio Color is a 2.1" display supporting 240 x 146 pixels and provides four colors (red, blue, green, yellow) plus black and white with a pixel density of 132 PPI. It is an organic thin-film-transistor (TFT) active-matrix incorporating bi-stable electrophoretic display technology. This means the image on the E Ink screen will be retained even when all power sources are removed. So, power is only consumed when something is changing on the display, becoming a low power solution. The refresh rate is < 900 ms (4 gray-level) – faster for mono updates.
“E Ink ACeP is a high quality, color reflective electronic paper that can produce full color at every pixel without the use of a color filter array (CFA). Currently, E Ink’s ACeP display has been used in signage applications that do not require flexible form factors," Plastic Logic company explained. "The addition of Plastic Logic’s technology allows for expansion into applications that can require thinner and lighter weight displays.”
Additionally, the device works on Ultrachip UC8156, which is an all-in-one driver IC with a timing controller (TCON) for EPD applications. UC8156 incorporates a built-in temperature sensor along with a power management integrated circuit and a four-wire serial peripheral interface.
The evaluation kit offers some external circuitry to support the display on-board power management and the system MCU. The 2.1″ display can be operated by one evaluation kit system that is based on MSP 430. It consists of a TI MSP430 microcontroller on a Parrot board and a Hummingbird Z9.5 board.
