Plasma TV's: Image Burn Issues???

[MrRiplEy[H]]

One thing to watch with plasmas is that they flicker like old tube screens did. That can be a real dealbreaker for someone who is sensitive to it (like me). When I got my first LCD it was like a gift from heaven! No more eyewear and headaches from the 60hz-120hz flicker.

[gyrene81]

One thing to watch with plasmas is that they flicker like old tube screens did. That can be a real dealbreaker for someone who is sensitive to it (like me). When I got my first LCD it was like a gift from heaven! No more eyewear and headaches from the 60hz-120hz flicker.

how did you get any flicker at all on a plasma tv, had to be a very early model, a bad unit or your eyes are sensitive to the constant pixel changing that happens on plasma tvs. improved video processing technology has made current plasma tv's not only refresh the picture different than lcd they do so a 1000 times faster than lcd televisions by splitting the screen into subfields in order to flash the same picture more times per second with much faster response times. a low end samsung plasma 720p is rated at 600hz subfield motion (60hz x 10 subfields=same image 60 times/second per field) with a .001 ms response time, the best lcd tv's are running 240hz (same image 240 times/second) with a 2ms response time.

[Skuzzy]

The difference is plasmas work just like CRT's did.  The phosphors are excited and die at a specific rate.  If you could see it in slow motion you would note the pixel output brightness will ramp from off to on to off.  Your eye cannot see the ramping and only sees the average light output.  Some people are sensitive to the rising and decaying of the phosphor, when under flourescent lights, and it can cause headaches for them.  HiTech is like this.  A CRT running at 60Hz just about drives him nuts.

LCD's are on and slowly off.  The brightness is more consistent as the LCD is never really completely off.  It just changes state to alter the colors allowed through.  The 'blurring' of an LCD is simply due to the speed at which they can change states.

Remember how CRT's looked when you watched them on television?  They had these bars in the video.  This was due to the harmonic between the camera and the CRT as they used the same frame/scan rate.  When broadcasters switched the CRT to LCD, that image distortion went away, regardless of the scan rate of the LCD.

[SmokinLoon]

Thanks for all the replies and input.  Your opinions have been weighed and measured.