E Ink has been getting serious about color display technology over the last few years. In just the past month or so, the company introduced its Gallery Plus technology which brings support for more colors to electronic paper digital signage, and Kaleido 3 technology that brings better color saturation to eBook readers.
Now the company is introducing E Ink Gallery 3 Color ePaper which brings more color, higher pixel density, and improved refresh rates eReaders and other small device with color E Ink displays.
The company notes that its E Ink Gallery 3 screens use four different color particles per pixel: cyan, magenta, yellow, and white. The company says this enables “full color gamut” and, since each individual pixel supports multiple colors, you don’t sacrifice pixel density when viewing color content the way you do with E Ink’s Kaleido displays (which use a color filter array on top of a black and white screen, causing a 300 ppi greyscale screen to drop to just 100 pixels per inch for color content).
In other words, E Ink Gallery 3 displays should be able to support tens of thousands of colors rather than just 4,096s. And you should get 300 pixels per inch whether you’re looking at color or greyscale content.
That said, some things still work better in black and white. E Ink says screen refresh rates are slower for color:
- 350 ms refresh rate for black and white refresh rate
- 500 ms refresh rate for “fast color mode”
- 750 – 1000ms refresh rate for “standard color mode”
- 1.5 seconds for “best color”
E Ink Gallery 3 displays can be used with flexible display technology, and the company is showing off 8 inch foldable and rollable screens using its new color ePaper. And there’s also support for features pen input (with a 30ms update time) and ComfortGaze front-lighting with support for adjustable color temperature to reduce blue light.
This article was first published April 21, 2022 and most recently update April 25, 2022.