Oled better for your health - less blue - compelling marketting msg ?

[jpaul]

Am currently trying out some blue wavelength reducing glasses to see if this might help sleep pattern, for late night tv/computer use (thought this article was particularly good on purchase options)

Following below article it turns out that Oled screens appear to have less of the harmful blue wavelengths blue-light-hazard-lcd-tvs-may-emit-3x-harmful-light-oled-tvs

But in turn even oled have a reasonbale amount of blue

LG uses different method,, their method seems the way to go at the moment. They're calling it WRGB, and it's a little confusing. Each pixel is made up of red, green, blue sub-pixels, with an additional "white" sub-pixel for a boost in brightness.
But it gets odder from there. Each subpixel is actually a sandwich of OLED materials. Blue and yellow OLED materials to be specific. This blue/yellow sandwich creates "white" light, then color filters layered above filter only the light desired for that sub-pixel. This graphic should help

And if Samsung crack the emissive QLED this could be even better
how-qled-tv-could-help-samsung-finally-beat-lgs-oleds

As other articles/ common-sense suggest , may need to ensure other Led lights in the house are of the warm (less blue) variety

Nonetheless, following above kind of info, i could be pursuaded to pay a health premium for current oled (amoled phones, for children etc. too)
... and if LG can make the appropriate research i think this would justify premium for many consumers

 

[V F]

A correctly calibrated screen isn't blue.

 

[jpaul]

Yes you can reduce some frequencies of blu light from led/oled tv's


However , being exposed to full sunlight directly before you going to sleep is not desirable, so adjusting your tv to generate that,
If it were within the gamut possibilities of the tv, would not be desirable (eg then having to use UV sunglasses watching tv )

Moreover some of the blu light frequencies tv gives are not within your control anyway, since led colours and oled are generated by underlying white or blue/green sources,
which are emitting the undesirable blue frequencies.
Those sources, then via filters or phosphors generate the rgb primaries for the tv.
These filters/phosphors are inefficient and cannot block all the undesirable blue light frequencies.
(Yes if you turn brightness to zero on your oled screen - perfect black - that would remove blue but ..)

 

[Psycho Sonny]

you should not be watching a tv in a dark room without BIAS lighting anyways. the bias lighting would be emitting blue light. or the lights within the room would be.

I think the whole thing is quite ridiculous. People have had tv's and lights in the houses for what 50+ years now. never had any issues before with "blue light".

seems like scaremongering to me. it's the last thing i would think about when purchasing a tv.

 

[jpaul]

The new Galaxy S8, now has UHD/HDR certificate

The Galaxy S8 is the first Smartphone to be certified by the UHD Alliance for Mobile HDR Premium, which allows it to play all of the same 4K High Dynamic Range content produced for 4K UHD Premium TVs.

and has a new red oleds,maybe the tech will move to tv's soon,

This also addresses reducing sleep disturbing blu-light Night Mode Blue Light Filter for Better Night Viewing

[ Some users complaining too much red - so maybe a new battery style scandal,
nonetheless at £800 do not get many per oled tv ]

 

[V F]

you should not be watching a tv in a dark room without BIAS lighting anyways. the bias lighting would be emitting blue light. or the lights within the room would be.

I think the whole thing is quite ridiculous. People have had tv's and lights in the houses for what 50+ years now. never had any issues before with "blue light".

seems like scaremongering to me. it's the last thing i would think about when purchasing a tv.

Depends what bias lighting one is using. Most people don't know the right amount of light to use even for bias lighting as it is usually too bright.