IPS Light Reflection

Don't see a specific place for your hardware question? This is the forum for you!

Moderators: mac_h8r1, Nemesis

IPS Light Reflection

Postposted on Sun Jan 13, 2013 9:24 pm

Hey guys,

This is probably a pretty bizarre question, so I figured someone on here might have the expertise.

So, I was watching some Deep Space 9 on my DLP TV, streaming it from my computer when I noticed the reflection from my computer. Now, the primary monitor is my Korean IPS panel, displaying this background (http://interfacelift.com/wallpaper/deta ... rning.html). The monitors were in extended, not clone. So the DLP was showing DS9.

Here's the weird part. The reflection of the DLP was normal. The colors looked perfect. The reflection of the IPS panel was violet or purple. I changed the background to eliminate that variable and the reflection was still purple. So the entire IPS screen, even the white areas, are purple in the window reflection.

Any physics majors out there have an idea?
shaq_mobile
Gerbil Elite
 
Posts: 550
Joined: Wed Jul 16, 2008 2:33 pm

Re: IPS Light Reflection

Postposted on Sun Jan 13, 2013 9:38 pm

Likely the coating on the glass is the main cause. A refraction from the coating and a refraction from the actual glass interacting with each other give that purple-ish reflection.

edit: derp, i didn't read closely enough. The theory still applies though. Coatings on screens and glass cause that.
i7 860 - GA-P55-USB3 - 8GiB - HD7850 - SSD - 3.64TB HDD - Xonar D1 - U2410 - Win7 Pro x64.
DancinJack
Minister of Gerbil Affairs
 
Posts: 2037
Joined: Sat Nov 25, 2006 3:21 pm
Location: Austin, TX

Re: IPS Light Reflection

Postposted on Sun Jan 13, 2013 10:39 pm

Very cool. :)
shaq_mobile
Gerbil Elite
 
Posts: 550
Joined: Wed Jul 16, 2008 2:33 pm

Re: IPS Light Reflection

Postposted on Sun Jan 13, 2013 11:20 pm

Here's a long-form description of the theory. Eyeglass wearers and photographers see lots of this, the typical antiglare coatings tend to shift the remaining reflections to either green or purple.
He who laughs last, laughs first next time.
ludi
Gerbil Elder
 
Posts: 5421
Joined: Fri Jun 21, 2002 10:47 pm
Location: Sunny Colorado front range

Re: IPS Light Reflection

Postposted on Sun Jan 13, 2013 11:47 pm

Could also have something to do with polarization, I suppose...
(this space intentionally left blank)
just brew it!
Administrator
Gold subscriber
 
 
Posts: 37631
Joined: Tue Aug 20, 2002 10:51 pm
Location: Somewhere, having a beer

Re: IPS Light Reflection

Postposted on Mon Jan 14, 2013 8:07 pm

Good stuff, thanks guys. I'll read that article when I get home.
shaq_mobile
Gerbil Elite
 
Posts: 550
Joined: Wed Jul 16, 2008 2:33 pm


Return to General Hardware

Who is online

Users browsing this forum: No registered users and 2 guests