Why does my HDTV appear red when reflecting light?

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Discussion Overview

The discussion centers around the phenomenon of an HDTV appearing red when reflecting light, specifically in the context of a plasma television. Participants explore potential reasons for this visual effect, including the behavior of phosphor dots and the impact of viewing angles.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant observes that their plasma HDTV reflects light in a way that makes it appear red, suggesting that the green and blue phosphor dots may not be emitting much light back compared to the red dots.
  • Another participant inquires about the type of HDTV to clarify the context, indicating that different technologies may behave differently.
  • There is a suggestion that the light could be refracted, and participants discuss the effect of viewing angles on the perceived color of the reflection.
  • A participant mentions the possibility of a film on the TV's glass that could influence reflections and glare, noting that their own plasma TV does not exhibit extreme color refraction.
  • Clarification is sought regarding the positioning of the lamp in relation to the viewer's head and the screen to better understand the observation.

Areas of Agreement / Disagreement

Participants have not reached a consensus on the cause of the red reflection, with multiple hypotheses being proposed and explored without resolution.

Contextual Notes

The discussion lacks detailed information about the specific conditions under which the red reflection occurs, such as the intensity and angle of the light source, and how these factors might interact with the TV's surface properties.

spizma
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I noticed that when my lamp reflects off of my HDTV, it appears red. It seems that the more light that is reflected into it, the redder it gets. I'm figuring that the green and blue line of the phosphor dots (I think that's the name for the tiny red, green, and blue lines on a screen) are not emitting much of the light back, but it is being emmited back by the red lines. Why would that happen?
 
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What type of HDTV is it? LCD, plasma, CRT, front projection, rear projection?
 
Maybe the light is being refracted. Are you shining the light at an angle? Try putting your head as close as possible to the lamp and see if the reflection is still red.
 
It is a plasma, and yes, it is when I'm looking at an angle, but it still appears red if I put my head very close to the screen.
 
Who makes your TV, they may have a film on the outside of the glass to try and prevent reflections and glare. My plasma will refract the reflections, but not to an extreme and not only certian colors.

CraigD, AMInstP
www.cymek.com
 
I'm didn't mean close to the screen, I meant put the lamp right next to your head, and then look at its reflection off the TV.
 

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