Details
4.2inch Passive NFC-Powered e-Paper, No Battery, Wireless Powering & Data Transfer
4.2" NFC-Powered e-Paper
Adopts novel passive NFC technology
No battery required, no more battery life trouble
![](/img/devkit/LCD/4.2inch-NFC-Powered-e-Paper/4.2inch-NFC-Powered-e-Paper-Details-01.jpg)
Wireless NFC-Powered Display Refreshing
No messy wiring, stable operation, fast refreshing
![](/img/devkit/LCD/4.2inch-NFC-Powered-e-Paper/4.2inch-NFC-Powered-e-Paper-Details-02.jpg)
How it works
To refresh the display content,
use a smart phone with NFC function, or an NFC reader,
close to the e-Paper for both wireless powering and data transfer
![](/img/devkit/LCD/4.2inch-NFC-Powered-e-Paper/4.2inch-NFC-Powered-e-Paper-Details-03.jpg)
This product is not compatible with Samsung smartphones
Feel the magic
Refreshed by smartphone, comes with Android APP, as easy as swiping a credit card
![](/img/devkit/LCD/4.2inch-NFC-Powered-e-Paper/4.2inch-NFC-Powered-e-Paper-demo.gif)
Refreshed by ST25R3911B NFC Board
Recommended evaluation kit: 4.2inch NFC e-Paper Eval Kit
![](/img/devkit/accBoard/ST25R3911B-NFC-Board/ST25R3911B-NFC-Board-demo.gif)
Application examples
Suitable for price Tags, asset/equipment Tags, shelf labels, conference name tags...
![](/img/devkit/LCD/4.2inch-NFC-Powered-e-Paper/4.2inch-NFC-Powered-e-Paper-Details-04.jpg)
Specifications
![](/img/devkit/LCD/4.2inch-NFC-Powered-e-Paper/4.2inch-NFC-Powered-e-Paper-Details-05.jpg)
Power supply | Wireless | Grey scale | 2 |
---|---|---|---|
Display color | Black / White | Refresh time | 4s (data transfer time is not included) |
Dot pitch | 0.212×0.212 | Display size | 84.8mm×63.6mm |
Resolution | 400×300 | Outline dimension | 105.1mm×94.1mm |
Viewing angle | >170° |
Outline dimensions
![](/img/devkit/LCD/4.2inch-NFC-Powered-e-Paper/4.2inch-NFC-Powered-e-Paper-size.jpg)