71–80 of 138 posts
E Ink seems to be one of the technologies that is hampered solely by patents. It's too sad that we're only going to get major innovations in e ink tech in 15-20 Years...
Funny how the name of the company (E Ink) became almost synonymous with the actual tech (EPD, or electronic paper if you want to generalize).
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What exactly about emitted light is a problem? Light doesn't carry a memory of how it was generated, so it must be some difference in some measurable property, e.g. brightness/contrast/color spectrum/flicker/polarization, or the way these change at different viewing angles. If you know which attributes are important then you might be able to match them with an emissive display.
Emissive displays don’t generally match the brightness of their surroundings; even with automatic adjustment, most are physically incapable of being as bright as a newspaper in daylight, and many cannot be as dim as a newspaper lit only by one of those small book-reading lights without being switched off entirely. There’s also the spikey spectrum, which looks the same consciously but I’ve seen claims [1] that is mess…
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By what mechanism of action? It can't possibly be true in general: e.g. staring at the reflection of the sun in a mirror strains the eyes more than staring at a candle.
A reflection of the sun on a mirror is a reflection of a very strong light source through a perfectly reflective medium.. A book or an e-ink screen is still ultimately sunlight, but it has scattered (which is reflection too) while passing through the atmosphere many times before reaching what you are looking at.
Recently, I brought a Dasung paperlike HD to use as a monitor. (crazy expensive, prob should've spend money elsewhere...) I thought some things were impossible with eink, but it proved me wrong. (video in a reasonable fps) It has a few different ways of display. For example: Floyd–Steinberg dithering: essentially only black and white with dithering, and the speed pretty good. A16: uses 16 shades of grey, but the spee…
Why do you regret buying it?
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Emissive displays don’t generally match the brightness of their surroundings; even with automatic adjustment, most are physically incapable of being as bright as a newspaper in daylight, and many cannot be as dim as a newspaper lit only by one of those small book-reading lights without being switched off entirely. There’s also the spikey spectrum, which looks the same consciously but I’ve seen claims [1] that is mess…
>Emissive displays don’t generally match the brightness of their surroundings How so? You can set any brightness you want to match the environment. Usage under direct sunlight is one edge case e-paper is clearly better at, and any usage with poor environmental lighting is detrimental to your eyes itself, regardless of technology. I'm really sceptical about the entire "E Ink is better for your eyes" thing until I see…
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Why would you use an e-ink display for videos? The main advantage is the low power consumption because it needs power only to refresh, using it for a video it will negate that advantage and draw much more power than a traditional display with an awful image quality...
1. Currently, I use it for writing code and reading papers. However, I still want the monitor to be a good enough drop-in monitor for things I need to occasionally do. For example, I need to switch to a browser window to check what was that error I'm getting. 2. Visual snow syndrome: Many had their first experience of visual snow after staring into the screen for too long. People who believe in that is the cause of v…
Does it look good with white text on black background ?
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By what mechanism of action? It can't possibly be true in general: e.g. staring at the reflection of the sun in a mirror strains the eyes more than staring at a candle.
A reflection of the sun on a mirror is a reflection of a very strong light source through a perfectly reflective medium.. A book or an e-ink screen is still ultimately sunlight, but it has scattered (which is reflection too) while passing through the atmosphere many times before reaching what you are looking at.
Is E Ink anything more than a marketed technology with no real purpose? One can calibrate the brightness, white balance (e.g. Apple's True Tone), resolution, etc of a regular LCD or OLED display so that the same amount of photons hit your eye (and are more tightly controlled when you move the display around) as with an E Ink display, and get better resolution color, and saturation to boot. Besides the idea that it wa…
Battery life is also much, much better. My tablet lasts two to three days at most, under light load, with power saving turned up to eleven. The Kindle can easily last one to two weeks. (It all depends on usage patterns, of course, but for my case those are the numbers I come up with.)
I do agree, though, that it is hard for me to think of a use case other than an ebook reader. For that particular case it is perfect, though.
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The new MacBook Pro screen work in full sunlight - it's just about being bright enough. Another option is to place the back of a plastic screen towards the sun, using it as a backlight.
Have you seen an e-ink display? It is about contrast, not brightness.