Hacker News Reader

Comment by bilbo0s | Hacker News Reader

Off topic a bit, but I have a small sony flatscreen tv in the house. The only one, but the kids use it all the time now.

Does anyone know of a way to "night shift" those things? Kids are trying their best to get into university, so I get that late studying is necessary. I even get that some kids prefer to watch some things on the TV. (Youtube/Netflix documentaries etc.) I've replaced lights, etc. But the TV is still blasting out blue light at all hours for them. Might be better if I could cut that down too I'm thinking?

View on HN

My new LG TV has a "Reduce Eye Strain" setting which does a flux-like red shift, reducing blue light. I haven't found a setting to do this based on time of day, and it's a bit buried in menus, so I just leave it on all the time as it isn't too severe. I tend to watch TV mostly in the evening anyway.

https://www.costco.com/LG-55%22-Class-(54.6%22-Diag.)-4K-Ult...

You may be able to go into the Picture settings and see if there are colour temperature settings, or calibration settings that you could reduce the Blue and Green channels on to taste. However, this will Night Shift the TV screen all the time, even during the day.

In my experience it wouldn't help much even if you could, unless the screen is the only light in the room. The only thing that moved the needle for me was wearing glasses that just "night shift" everything.

I haven't figured out how to do the TV. If I want to watch TV at night, I use my computer which run flu.x. Maybe if you have a spare old computer lying around you can hook it up to the TV and then install something on that to yellow-shift everything and then watch with that?

If your TV doesn't have any specific blue light settings, you can get an external device like driftTV[0]. Even without a specific blue light reduction mode, I recommend turning down the brightness to the lowest comfortable setting.

[0] https://www.amazon.com/driftTV-Remove-Blue-Your-Sleep/dp/B01...

Holy crap $129 is a bit for that. I’ll wait for all the cheap knock offs to copy and improve it (eg, a remote).

There appears to be an HDMI type device on Amazon that works, albiet buggy. Perhaps a better device needs to come along for the rest of us :)

You'd think someone would make a custom-sized film for this purpose.

TV Manufacturers need to start including this feature.

Reply on news.ycombinator.com