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The video is really well done and interesting, and makes you think the right way about sub-pixels. Though it does seem a little amusing to me that the process Japhy used is basically exactly the same process the display is already using for antialiasing fonts, he’s just doing it manually. We already have sub-pixel art, pretty much all the time. ;) I haven’t tried, but in theory the hidden message thing at the end can be done purely by reducing your font size to sub 1-pt.

I've played with this quite a bit over the past few years and want to clarify that the colors of light from the display only combine in your visual system (retina/brain) so that you perceive colors other than red, green, and blue.

This reminded me of the first(?) sub-pixel typeface (by Miha as posted on Typophile in 2009) https://adamnorwood.com/notes/typophile-user-miha-is-doing-s...

And the first sub-pixel font Millitext from 2008, as mentioned in another comment.

Green being perceptibly (perceptually?) brighter to humans than Red and Blue — perhaps you need to dial down the levels when displaying it.

side note, cleartype was quite a nice improvement in windows when it came out https://en.wikipedia.org/wiki/ClearType

(also based on subpixel aliasing demonstrated in the video, just not mentioned)

I highly recommend people click through the rest of this guy's videos. Lots of fun and playful experiments. :)

You can do very slow yet smooth scrolling for games by using the subpixels - at least on platforms like e.g. the Game Boy Color where you know the pixel geometry. Of course you need to use 'whole' pixels (composed of RGB) so the perceived color doesn't change.

I dont understand the last bit where hi hid text message in sub pixels. How did that work?

There's a generator for those hidden subpixel message textures:

https://jsbin.com/korotaluso/edit?js,output