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A comment on Show HN: Building a 42-inch E-Ink frame for generative art. Parent comment

Re:Show HN: Building a 42-inch E-Ink frame for generative art by prewett on Tuesday October 10, 2023 @06:07PM (#37838295)
If it's a 4k TV it also has more pixels and better refresh rate. And color. But for that extra $2360 you get the feature that your image is still there when the power is off. I expect that feature would be substantially more costly regardless of the patent holder's extra.
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Re:Show HN: Building a 42-inch E-Ink frame for generative art by nomel on Tuesday October 10, 2023 @06:14PM (#37838386)
> you get the feature that your image is still there when the power is off

How is that a realistic feature? Who is losing power and being happy that they spent a few thousand more, nearly 40x, than a 36" photo quality print, just so the image can remain while their lights are off?

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Re:Show HN: Building a 42-inch E-Ink frame for generative art by k1t on Tuesday October 10, 2023 @06:50PM (#37838774)
The point is that it only uses power when changing the image, so a small battery can run it for a long time - not that it works during a power outage.

(and of course it is a lot easier to change than a printed photo)

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Re:Show HN: Building a 42-inch E-Ink frame for generative art by nomel on Tuesday October 10, 2023 @09:25PM (#37839906)
For $2,200, you could run a 35W 43” $160 TV for 29 years, if your power is $0.3/kWh. In reality, much more, with a dim display at night.

I understand being eco friendly, but that’s an absurd, entirely negligible, justification.

I would claim the reflective display is the killer feature.

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Re:Show HN: Building a 42-inch E-Ink frame for generative art by callalex on Wednesday October 11, 2023 @12:28AM (#37840883)
As the person you are replying to clearly stated, it has nothing to do with drawing power from a wall socket. It’s about enabling new uses that work on battery power that can last for months/years instead of minutes.
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Re:Show HN: Building a 42-inch E-Ink frame for generative art by nomel on Wednesday October 11, 2023 @11:05AM (#37845380)
I see now that my perspective was too bound to the context. Thanks.
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Re:Show HN: Building a 42-inch E-Ink frame for generative art by johnmaguire on Wednesday October 11, 2023 @12:32AM (#37840910)
Many of e-ink's use cases involve low power environments. This is often due to logistics - not cost.
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Re:Show HN: Building a 42-inch E-Ink frame for generative art by adql on Wednesday October 11, 2023 @09:40AM (#37844244)
I'd love big reflective/tranflective display but I'd imagine because of rarity the prices would also be pretty high
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Re:Show HN: Building a 42-inch E-Ink frame for generative art by diogenes4 on Tuesday October 10, 2023 @10:18PM (#37840171)
Rotating the art while not actively producing light is a pretty big draw. The power seems like a red herring.
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Re:Show HN: Building a 42-inch E-Ink frame for generative art by malfist on Tuesday October 10, 2023 @07:11PM (#37838950)
But that's not the only benefit of eink.

EInk doesn't have a backlight. So it's easy to see in glaring light. It's also not disruptive if so, you want to use it as a digital picture frame and you don't want light from the display bothering your eyes day and night.

EInk is a more peaceful display technology, and some people put a lot of value on that.

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