The Great LCD Brightness/Distance Experiment

jupstin · 04-09-2010, 03:20 PM

I'm a Kindle owner/e-Ink lover (enthusiast?) I've owned 4 different e-ink devices over the years, and I have always been in the camp that feels there is less eyestrain with an e-ink device because there is no refreshing or backlight.

Well, I decided that I'd try an experiment. I easily spend about 6-8 hours in front of 2 LCD screens every weekday, and I tend to get eyestrain by the end of the day. I've lowered the brightness on my monitors, and moved my primary monitor from about 24 inches away from my eyes to about 12 inches away from my eyes. We'll see how it goes.

Let the Great Experiment BEGIN!!!

Sweetpea · 04-10-2010, 03:21 AM

Your experiment is flawed from the start...

Whenever you experiment, you only change one parameter at a time. So, first you either move away or you adjust the brightness. Then you see what the effect is, and then you change the other parameter. Check the effect again. Finally, you change both and check again...

jupstin · 04-12-2010, 11:31 AM

Good point - I've changed the experiment. I spent an 8 hour day with my normal brightness at the closer distance. My eyes hate me. Today I'm trying lower brightness at regular distance. So far, I'd say that the contrast seems to suffer quite a bit, but it's too early in the day to really say.

Steven Lyle Jordan · 04-12-2010, 03:27 PM

Off to a good start.

Now, you need to get nine other people to do the same thing to, plus ten other people to expose to the original setting for the same amount of time (the control group). Then get back to us.

Jellby · 04-13-2010, 06:37 AM

Quote:

Originally Posted by Steve Jordan

Off to a good start.

Now, you need to get nine other people to do the same thing to, plus ten other people to expose to the original setting for the same amount of time (the control group). Then get back to us.

... and have neither those people nor yourself know which group they are in

dadioflex · 04-13-2010, 06:58 AM

Edit.

jupstin · 04-13-2010, 10:57 AM

Perhaps I should have called this thread, The Great LCD Brightness/Distance "Experiment"

I realize it may not be scientifically valid, but at least I have the hope of alleviating some of my own eye strain. So far, normal distance plus reduced brightness seems to be the winner. I can say with 100% confidence that all people in the world who are exactly like me will experience the same result. Also - brighter and closer is like two hands grabbing your eyeballs from inside your skull.

jupstin · 04-13-2010, 11:00 AM

Quote:

Originally Posted by dadioflex

What's on these screens?

I'd like to say "8 hours a day of hard work," but the truth is something more like a whole lot of blog reading with a little bit of work thrown in.

04-09-2010, 03:20 PM	#1
jupstin Groupie Posts: 159 Karma: 1005378 Join Date: May 2008 Location: Cambria, California Device: Kindle 2	The Great LCD Brightness/Distance Experiment I'm a Kindle owner/e-Ink lover (enthusiast?) I've owned 4 different e-ink devices over the years, and I have always been in the camp that feels there is less eyestrain with an e-ink device because there is no refreshing or backlight. Well, I decided that I'd try an experiment. I easily spend about 6-8 hours in front of 2 LCD screens every weekday, and I tend to get eyestrain by the end of the day. I've lowered the brightness on my monitors, and moved my primary monitor from about 24 inches away from my eyes to about 12 inches away from my eyes. We'll see how it goes. Let the Great Experiment BEGIN!!!

04-13-2010, 06:58 AM	#6
dadioflex Dyslexic Count Posts: 526 Karma: 5041991 Join Date: Aug 2008 Device: Palm TX, Advent Vega, iPad, iPod Touch, Kindle	Edit. Last edited by dadioflex; 12-15-2010 at 06:24 PM.

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04-10-2010, 03:21 AM	#2
Sweetpea Grand Sorcerer Posts: 9,707 Karma: 32763414 Join Date: Dec 2008 Location: Krewerd Device: Pocketbook Inkpad 4 Color; Samsung Galaxy Tab S6	Your experiment is flawed from the start... Whenever you experiment, you only change one parameter at a time. So, first you either move away or you adjust the brightness. Then you see what the effect is, and then you change the other parameter. Check the effect again. Finally, you change both and check again...

04-12-2010, 11:31 AM	#3
jupstin Groupie Posts: 159 Karma: 1005378 Join Date: May 2008 Location: Cambria, California Device: Kindle 2	Good point - I've changed the experiment. I spent an 8 hour day with my normal brightness at the closer distance. My eyes hate me. Today I'm trying lower brightness at regular distance. So far, I'd say that the contrast seems to suffer quite a bit, but it's too early in the day to really say.

04-12-2010, 03:27 PM	#4
Steven Lyle Jordan Grand Sorcerer Posts: 8,478 Karma: 5171130 Join Date: Jan 2006 Device: none	Off to a good start. Now, you need to get nine other people to do the same thing to, plus ten other people to expose to the original setting for the same amount of time (the control group). Then get back to us.

04-13-2010, 10:57 AM	#7
jupstin Groupie Posts: 159 Karma: 1005378 Join Date: May 2008 Location: Cambria, California Device: Kindle 2	Perhaps I should have called this thread, The Great LCD Brightness/Distance "Experiment" I realize it may not be scientifically valid, but at least I have the hope of alleviating some of my own eye strain. So far, normal distance plus reduced brightness seems to be the winner. I can say with 100% confidence that all people in the world who are exactly like me will experience the same result. Also - brighter and closer is like two hands grabbing your eyeballs from inside your skull.

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