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Topic: Hypothetical Idea for OLED Screens.... (Read 996 times) previous topic - next topic

cjdelphi

Before I begin i'd like to do a little experiment with you guys, look at the Arduio Forum logo top left of your computer screen, now specficially look at the very last Letter "M" of "Arduino Forum"

without moving your eyes a mm off of the letter M, do not move your eyes anywhere else at all now, while doing so, read what topic heading or some kind of text only a few inches away from the M in the Arduino Forum section, so why not apply this rule to screens?

Turn off all none used pixels outside of eye's processing capability, the eye wont notice it but if we had say up to what? 60 - 70% of the screen off? i'm sure battery life could be saved right? on potentially any phone with a front facing camera?

Nick Gammon

How does the LCD know what part of it you are looking at?
http://www.gammon.com.au/electronics

Graynomad

Also it's the backlight that consumes the majority of the power, IFAIK the actual pixels use bugger all.

So you'd have to segment the backlight and switch sections, that would be uber annoying.

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Rob
Rob Gray aka the GRAYnomad www.robgray.com

cjdelphi

LCD? (not the same thing as OLED)


OLED... is able to do this, and the front camera to track your eye.

Graynomad

Quote
LCD? (not the same thing as OLED)

Correct, I'll read more carefully next time :)

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Rob
Rob Gray aka the GRAYnomad www.robgray.com

Nick Gammon


LCD? (not the same thing as OLED)

OLED... is able to do this, and the front camera to track your eye.


OK, OLED. I have an OLED and it didn't come with a camera.

And even if it did, what if two people were looking at it?
http://www.gammon.com.au/electronics

Graynomad

How can you tell where someone is looking anyway but just getting an image of the face? I think most such systems have to bounce a beam off the eye. Also the viewer's field of view relative to the screen will change depending on how far away they are. IE from a distance the area being "concentrated" on could in fact be the entire screen.

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Rob
Rob Gray aka the GRAYnomad www.robgray.com

Docedison

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"The solution of every problem is another problem." -Johann Wolfgang von Goethe
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cjdelphi

It largely depends on how good the imaging sensor is ... but "hypothetically" all the OLED pixels that your eye can't view, the pixels could be turned off to save power...


But how much power it eats up processing the real time data, is another question...

Nick Gammon

How much power will it take to drive this camera, which detects where your eye is looking, to save lighting up a few pixels?
http://www.gammon.com.au/electronics

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