7.4″ E ink Display – Aurora Mb (V231)

The different types of E ink imaging film

E ink film type	Alias	Colors	Operating temperature	Storage temperature	Remark
Aurora Mb	V231	black, white (BW)	0°C to +50°C	-20°C to +60°C	Our most subscribed display platform. Suitable for most indoor operating conditions. Support partial updates.
Aurora -25	V430	black, white (BW)	-25°C to +30°C	-25°C to +60°C	Suitable for freezing operating conditions.
Spectra Red	R2.0	black, white, red (BWR)	0°C to +40°C	-20°C to +60°C	3-colors pigments inside. Taking longer time to complete a refresh.

Driver type	iTC (internal timing controller)	eTC (external timing controller)
EPD with host board
Waveform location
Driving waveform	Embedded in driver IC (CoG)	Controlled by MCU
Customization / Design flexibility	Normal	Higher
Design-in effort	Easier	Normal
Power consumption	Normal	Lower
Explanation	The driving waveforms (LUTs, lookup tables) have been pre-programmed in the driver IC. Developers just need to send image data and update command to complete the screen refresh. If developers need special support to change the waveforms, extra LUTs can be sent externally.	Following our driving guide, developers can fully control the driving flow and stage from the MCU. Developers need to send converted image data at each specific stage.