Exploring Dithering on Spectra 6-color E-Ink Displays

5 days ago (myembeddedstuff.com)

Obra Dinn's in-game dithering is also a cool entry for clever, tailor-made dithering in general: https://youtu.be/_3qzyAHMoUU?t=2m24s)

For eink: yeah white mixed in is surprisingly easy to pick out compared to other color combinations. It's fine at enough of a distance, so maybe for a picture frame, but pretty rough at a middle reading distance or closer.

After seeing a cool demo of using precomputed blue noise with thresholding to approximate transparency in shaders. I'm quite interested about using the same technique for colour mixing.

I hope TRMNL will start supporting 6 color e-paper displays more widely. I have one of these 6 color panels running with my own custom firmware on their BYOD license and I'm really happy with it, just wish it could take advantage of the color capabilities.

  • Yes! I'm in the same boat! My guess is that there's something in the backend (image cache/storage size) that presents as a cost/logistical problem instead of as a technical one.