Great presentation! Lots of solid wisdom there, especially about PWM techniques. Wish there was more about gross current regulation for higher current levels.
Few people wondering why interlacing is used in current year, if you know why it was used previously you know why it's used now, bandwidth and cost are primarily reasons but it also reduces perceived flicker, people asking for large public art displays do not have infinite budgets removing the interlacing while also reducing the flicker in other ways can be completely cost prohibitive
Mike is incredibly multi-talented. One thing that I don't understand is why you don't apply the gamma correction to the time slot length in the multi-channel shift register scheme, instead of to the bits. I.e. Why is every time slot double the duration of the next, instead of four times (assuming γ=2)? E.g. 1 μs, 4 μs, 16 μs, 64 μs, 256 μs etc. By doing so, eight time slots should be enough to convey 256 gamma corrected brightnesses.
It was nice watching a close up of him point off screen. Great job!
It's nice that Tony Hawk also does electronics.
Loved the last words 'with a data sheet you can read', a good contrast to Aliexpress etc. lots of head scratching.
Great presentation! Lots of solid wisdom there, especially about PWM techniques. Wish there was more about gross current regulation for higher current levels.
Anyone who, in this day and age, still uses interlaced video needs to be clubbed to death with an old TV set.
Great source of Information! 👍 Are the slides available for download?
You could take screenshots like I did.
@@AnthonyGoodley You can't take screenshots when the slides aren't actually shown like at 34:40
This was really great !
Awesome talk...I'm confused how interlacing can be a thing in 2000+
Love how RGBW is the perfect opposite of CMYK (for obvious reasons if you think about it).
Thanks for sharing this info.
Few people wondering why interlacing is used in current year, if you know why it was used previously you know why it's used now, bandwidth and cost are primarily reasons but it also reduces perceived flicker, people asking for large public art displays do not have infinite budgets removing the interlacing while also reducing the flicker in other ways can be completely cost prohibitive
terrible camera operator
Ha I wish I had watched this video a couple months ago when I was designing an LED light/display thing...
Mike is incredibly multi-talented. One thing that I don't understand is why you don't apply the gamma correction to the time slot length in the multi-channel shift register scheme, instead of to the bits. I.e. Why is every time slot double the duration of the next, instead of four times (assuming γ=2)? E.g. 1 μs, 4 μs, 16 μs, 64 μs, 256 μs etc. By doing so, eight time slots should be enough to convey 256 gamma corrected brightnesses.
The math does not work out: x² + y² != (x+y)². e.g. (1µS + 2µS)² = 9µS, but 1µS² + 2µS¹ = 5µS.
interlaced - rly ?