E-ink displays – external driver

Driver IC is a timing controller (Tcon) to output different sources/data and control the gates per pixel on EPD (e-paper display). It’s always bonded on TFT backplane which is also called CoG (Chip on Glass). The output image on an EPD is realized by controlling the pixel electrode voltage, thus affecting motion of charged particles in the neutral suspension. A voltage sequence applied to the pixel electrode is called a driving waveform.  Charge pump, a kind of DC to DC converter (DC/DC) that uses capacitors for energetic charge storage to raise or lower voltages.
When the DC/DC is embedded in the CoG and driving waveform is pre-programmed in CoG, we call it internal timing controller (iTC) ,and similarly, if the DC/DC circuit is arranged outside the EPD module and driving waveform is controller from MCU, we call it external timing controller (eTC).

This type of EPD is a unique specification of our company, which uses external charge pump, external driving waveform to output the image on screen. There are 1.44″, 1.9″, 2.0″(EoL), 2.6″ and 2.71″, total 5 models which are all monochrome black and white colors only that cannot be changed to three-colors film material.

Please click on the “Driver IC” tabstripe to check if it matches your use case before developing.

Find the detailed tutorial of working with EXT2 kit here.