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The Gallery 3 still is far behind the TCL NxtPaper 3.0 for colour and contrast. It's good enough for a brightly lit shop or shop window signage, but only about 50,000 combinations of hue, saturation and brightness. The complementary/secondary Cyan, Yellow and Magenta are maybe twice as bright as brightest Red, Green and Blue primaries because it's subtractive.
It's for semi-static adverts.
Also for Kaleido you'd need better than 450 dpi to have the Nxtpaper 11 display sharpness. The "later in 2024" Nxtpaper 15 seems to be slightly higher resolution. Also the quoted resolutions of LCD are real, rather than them boasting of the underlying mono panel resolution (which might be 3600 x 2000 pixels if the Nxtpaper 11 is stripes, I'll try a better magnification system).
Soon the QLED (quantum dot on LCD) will be on phones and tablets, not just TV screens, which will give x5 brightness in full sunlight, or a reduction to 1/5th of backlight power. The eink can't use quantum dot colour as the red or green light emitting dots are driven by blue light. OLED might use them. The OLED are not real LEDs like Sony Crystal panels, or the large LED panels but diode-like electroluminescent dots giving blue or violet and having both phosphors for red and green (some have quad arrays with yellow too) and sometimes a colour filter.
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