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Old 02-03-2010, 01:37 AM   #1
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Arrow Amazing demo of a TI OMAP4 chipset driving an e-ink reader

slashgear has a video of TI OMAP4 driving an e-ink reader.
The chipset is great in terms of power efficiency and performance.

The OMAP4 has an integrated display controller, and it's amazing to see what even current generation e-ink can do in terms of refresh once you eliminate the controller bottleneck.

Even if my money is on tegra2/PixelQi and Mirasol, e-ink could still be a player here.

This year we will finally be able to achieve all-day computing battery life on everyday devices.
Once you reach 8-12h, battery becomes a secondary concern for many people.

I'm also perfectly okay with tegra and OMAP and a linux OS for tablets/readers/smartphones. Now that google has finally decided to go to war and enable multitouch, things will get really really interesting.

I think Microsoft needs to adapt its interface, and it's gonna take the some time. No windows for me thank you.

Last edited by BKeeper; 02-03-2010 at 01:58 AM.
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Old 02-03-2010, 03:06 AM   #2
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I have long suspected that the controller was a bottleneck and the screens could be much faster. That speed is fast enough for anyone who complains that e-ink is slow (when reading).

Pretty cool stuff
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Old 02-03-2010, 09:59 AM   #3
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The EInk-ready processor is an OMAP3, and its most interesting feature is that the display controller is actually a standard DSP module and software.

See E-reader platform taps 45nm Cortex SoC, which lists SiPix and LiquaVista as "partners". So perhaps some or all of the Readers with SiPix screens will be using this chip.
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Old 02-03-2010, 11:05 AM   #4
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Quote:
Originally Posted by CTH View Post
I have long suspected that the controller was a bottleneck and the screens could be much faster. That speed is fast enough for anyone who complains that e-ink is slow (when reading).

Pretty cool stuff
No, the screen is still way too slow for full functionality. Perhaps in another generation or two of EPD, but not yet. More tolerable? Perhaps, but fast enough? No, absolutely not. And I mean when reading.
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Old 02-03-2010, 11:18 AM   #5
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That demo did look very interesting, though it's hard to say if it's faster than current implementations. It shows the demo rapidly updating the screen, though we have no idea what the delay is from when the program draws on the screen and when the screen actually updates. I'm guessing if the dev unit supported sytlus/finger touch, we can see how quickly the unit can keep up.

It is also impossible to tell if such fast updates leaves after-images (ghosting) on the screen, which may not show up in a demo but will when viewing many pages of text. Current controllers probably try to find a compromise between speed and anti-ghosting techniques. Some controllers, in response to a page turn, like to just refresh just the parts of the screen with text while other controllers (irex's delta) wants to refresh the entire page. There is probably different battery cost to each method (perhaps Irex's usage of the faster and cleaner entire refresh method is why their devices are less battery efficient).

But I do agree than the current CPUs on readers is too slow since much of the screen refresh time is not due to the e-ink.
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Old 02-04-2010, 06:08 AM   #6
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Considerable improvement.
Almost a perfect speed for reading fiction. Even traditional eInk is fast enough for reading but this one will satisfy speed readers too. Nice!
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