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An expensive TV is a poor investment, and people spend FAR too much on them

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MK14:
Summary:
I'm NOT an expert on monitors/TVs (just an average user, with technical knowledge, which most EEVblog member have as well, who reads up on screen/monitor/TV technology/reviews sometimes). So take what I have been saying in this thread, as partly opinion/subjective. In my own personal experience, I've never seen an IPS screen play up, as regards image retention or screen burn.

But, I can believe it can happen, but I'd prefer to experience it myself.

But I've heard lots of bad things about OLED permanent screen burn damage. Also, I've seen pictures of image burn OLED screens, for sale very cheaply on ebay. Which puts me off OLED screens, especially for any somewhat stationary image uses. Maybe an OLED just for watching movies, isn't so bad, assuming there are no brand/channel advertising icons (or black boarders, on none 16 : 9 stuff), permanently on the screen, during the movie.

Just went on ebay. Found example of screen burned OLED tv ('PHILIPS 55POS9002 55 INCH OLED 4K ULTRA HD SMART TV - SCREEN BURN'  https://www.ebay.co.uk/rvh/165134163457?rt=nc&_trksid=p2047675.l48144  sorry but hard to link to properly, as ebay insists on showing new/fresh auctions, instead ), via completed listings search, in UK. Please Click below:

coppice:

--- Quote from: SeanB on February 04, 2022, 06:05:16 pm ---Plenty common with mono CRT displays, where you could read the fixed menu items power on or off. Also very common with early plasma displays, which would burn in logo places on the screen after a few months. Later ones came with a screen burn removal mode, which simply ran all pixels at full brightness in a slow moving band for a few hours. Brightness much higher than the display would normally allow, and limited to a small band so as to not overload the power supplies.

--- End quote ---
Some old computer systems were notorious for this. The console of a TI990 mini-computer displayed the same menu all day long in most cases, as they were widely used in applications where the console was merely used start things up in the morning, and shut them down at night. They constructed the menu entirely from high brightness characters, and had no screen saver mode, to ensure the screen wore as fast as possible.

coppice:

--- Quote from: TimFox on February 04, 2022, 06:47:31 pm ---"IPS" flat-panel displays can also suffer from burned-in images when the image does not change.
-hp- explicitly denies warranty for such displays used with unchanging images, such as surveillance monitors.

--- End quote ---
Some LCD panels also suffer from a kind of pseudo burn in, that is not permanent. I have a Dell 27" monitor that is a good example of this. You can often see a shadow of windows that were previously displayed when the screen is just displaying plain white. However, over a few hours to a few days those shadows will fade and be replaced by shadows of newer windows which have been displayed.

tooki:

--- Quote from: MK14 on February 04, 2022, 10:12:25 pm ---Summary:
I'm NOT an expert on monitors/TVs (just an average user, with technical knowledge, which most EEVblog member have as well, who reads up on screen/monitor/TV technology/reviews sometimes). So take what I have been saying in this thread, as partly opinion/subjective. In my own personal experience, I've never seen an IPS screen play up, as regards image retention or screen burn.

But, I can believe it can happen, but I'd prefer to experience it myself.

But I've heard lots of bad things about OLED permanent screen burn damage. Also, I've seen pictures of image burn OLED screens, for sale very cheaply on ebay. Which puts me off OLED screens, especially for any somewhat stationary image uses. Maybe an OLED just for watching movies, isn't so bad, assuming there are no brand/channel advertising icons (or black boarders, on none 16 : 9 stuff), permanently on the screen, during the movie.

--- End quote ---
Plasma TVs suffer similarly if used for static images (I’ve seen some awful burn in on plasmas used as airport departure boards, for example). But used for video, absolutely not a problem. My Panasonic plasma is from mid 2009, and there is not even a hint of burn-in, not even a difference on the edges from the black bars on 4:3 content, which I watch plenty of. (Practically 100% of my viewing is via an Apple TV box, which shows a screen saver after a few minutes, including when video is paused, so the TV is never exposed to long-term static images.) While I do suspect that OLED is more sensitive than plasma, I know I’d be comfortable buying an OLED now.

MK14:

--- Quote from: tooki on February 05, 2022, 01:07:00 pm ---Plasma TVs suffer similarly if used for static images (I’ve seen some awful burn in on plasmas used as airport departure boards, for example). But used for video, absolutely not a problem. My Panasonic plasma is from mid 2009, and there is not even a hint of burn-in, not even a difference on the edges from the black bars on 4:3 content, which I watch plenty of. (Practically 100% of my viewing is via an Apple TV box, which shows a screen saver after a few minutes, including when video is paused, so the TV is never exposed to long-term static images.) While I do suspect that OLED is more sensitive than plasma, I know I’d be comfortable buying an OLED now.

--- End quote ---

To check my understanding. Are you saying you'd be happy to buy an OLED TV, but only if it is used for Movies (and other non-static content) ?
Or would you be happy to buy OLED TVs, for massive static image content, such as computer/gaming/live-TV(station channel icon burns) uses ?
Which many households would do, depending on who lives in that household.

The later Plasmas, especially the Panasonic ones, with a claimed (and probably true), 100,000 hour screen life and advanced image retention/burn protections. Would probably have made good purchases at the time, they were readily available. I think the issues were more that mud sticks, and Plasmas had got a bad/poor reputation, from the earliest Plasmas, which did sometimes cause screen issues
But those would have been (the earliest), before the screen manufacturing techniques improved (as regards screen life time), and anti-burn technologies were introduced, and possibly other advancements, to limit/protect the later Plasma TV screens.

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