Why has eInk technology stalled compared to other display tech?

My understanding is one company holds the patents, and they control the pricing and the speed of innovation.

I don't agree with the other comment that implies a lack of demand. Lots of people would be perfectly happy with an e-ink phone or laptop. I use a Boox tablet, and the slow refreshes are a feature, not a bug, as they keep me from wasting time on Youtube or TikTok like I could with my phone or computer.

It's too bad Pixel Qi displays never got popular.

https://en.wikipedia.org/wiki/Pixel_Qi

There’s a great tech altar episode that dives into this: https://youtu.be/8Xr9X6cbQ68

This video [0][1] (made two weeks ago) will answer your question and go beyond.

[0]: https://news.ycombinator.com/item?id=34143174

[1]: https://youtube.com/watch?v=8Xr9X6cbQ68

My regrets abouts current eEnk readers: 1) Too heavy(for 10”) - 400 grams and more. Too wide borders. Still 2 cm on Kindle Oasis! 2) Low level of UX, compared with modern tablets - slow screen refresh, touch events comfort far away from tablets. 3) Too much of unneeded features. Who needs audio player or web browser on reader? Invest your time in technology inprovements!

Looks like even Amazon lost interest for ereaders R&D. City needs new hero.

Qualcomm Mirasol was so ahead of its time (colorful, excellent battery life), but never really took off, and Apple ended up acquiring it

https://appleinsider.com/articles/15/12/15/apple-has-taken-o...

I have heard the patent theory, but as an alternative:

TV and then gaming is the big driver. That's why laptops went to 16:9 ratios and what has pushed displays through multiple performance barriers.

Reading is niche, though I expect some improvement now that it's got cheap enough for shelf signage use cases.

other than demand? why invest tons of $$ into something when it would take forever to recoup your investment?

only tried amazon kindles. bought one with a keyboard when me much younger. was gifted a new model last year.

it same thing. battery life very good but it so slow. new model has menu screen like android.

what do u mean by stalled? they released color eink and are planning to release next gen color panels, faster refresh rate panels and foldable displays. if you’re willing to pay for it you can get 25-40 in eink monitors. considering the small market for eink I think they are innovating