On 04/04/2016 10:11 AM, gumb wrote:
On 04/04/16 15:46, Anton Aylward wrote:
So what, exactly, are we *saving* with a screen-saver when the 'screen' is an array of LEDS?
I just had a look at the Dell S2240T user manual, and it states, under the Maintenance Guidelines:
• To help maintain the best image quality on your monitor, use a dynamically changing screen saver and turn off your monitor when not in use.
The 'turn off when not in use' is probably good advice for a number of electrical and electronic products. Unplug them as well :-)
Under the Troubleshooting chart, there is this entry:
Common symptoms: Image retention from a static image left on the monitor for a long period of time
Yes, that is a classical problem with CRTs. Is it a problem with LEDS/ActiveMatirx/ThinFilm/LCD? I suppose any of them can 'burn out' with over-use (or abuse) but I don't see how this technology suffers from a static image rather than a dynamic image.
What you experience: Faint shadow from the static image displayed appears on the screen
IIR there was, in early models, switching time problems. These days that's well below out perceptual threshold. So where, with this technology, will this 'shadow' come from?
The Product Features describe the monitor thus: The Dell S2240T flat panel display has an active matrix, Thin-Film Transistor (TFT), Liquid Crystal Display (LCD) and LED backlight.
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