How to
Application
- 1D/2D barcode
- Electronic shelf label
- Identification & Access
- Medical device
- Internet of Things
- Reusable Transit Item
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.
The different types of E ink imaging film
E ink film type | Temperature range | Colors | Operating temperature | Storage temperature | Remark |
---|---|---|---|---|---|
Aurora | Zero above | black, white (BW) | 0°C to +50°C | -20°C to +60°C | Standard monochrome display for most indoor operating conditions. Support fast updates. |
Aurora -25 | Freezer | black, white (BW) | -25°C to +30°C | -25°C to +60°C | Suitable for freezing operating conditions. |
Wide Temperature | Wide | black, white (BW) | -15°C to +60°C (Fast Update: 0°C to +50°C) | -25°C to +70°C | New generation of our unique monochrome display and support fast updates. |
Spectra Red | Zero above | black, white, red (BWR) | 0°C to +40°C | -25°C to +60°C | 3-colors pigments inside. Taking longer time to complete a refresh. |
Spectra 4 | Zero above | black, white, red, yellow (BWRY) | 0°C to +40°C | -25°C to +60°C | New generation of color display upgraded by BWR to provide additional yellow. |
Driver comparison of iTC and eTC
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 |
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Technical Details/Specs
Model Name | E2144CS021 |
Driver IC | External driving (eTC) |
Product Specification | 1.44” TFT EPD Panel (E2144CS021) (pdf - 1.93Mb) |
Driving Document | Driving Interface document for external driver type of EPDs (pdf - 1.96Mb) |
Development Kits | EPD Extension Kit Gen 2 (EXT2) |
Buy | Contact me |
Model Name | E2190CS021 |
Driver IC | External driving (eTC) |
Product Specification | 1.9” TFT EPD Panel (E2190CS021) (pdf - 1.94Mb) |
Driving Document | Driving Interface document for external driver type of EPDs (pdf - 1.96Mb) |
Development Kits | EPD Extension Kit Gen 2 (EXT2) |
Buy | Contact me |
Model Name | E2260CS021 |
Driver IC | External driving (eTC) |
Product Specification | 2.6” TFT EPD Panel (E2260CS021) (pdf - 1.37Mb) |
Driving Document | Driving Interface document for external driver type of EPDs (pdf - 1.96Mb) |
Development Kits | EPD Extension Kit Gen 2 (EXT2) |
Buy | Contact me |
Model Name | E2271CS021 |
Driver IC | External driving (eTC) |
Product Specification | 2.7" TFT EPD Panel (E2271CS021) (pdf - 1.82Mb) |
Driving Document | Driving Interface document for external driver type of EPDs (pdf - 1.96Mb) |
Development Kits | EPD Extension Kit Gen 2 (EXT2) |
Buy | Contact me |