Question LCD LED IPS display

[lucas88]

If you store an any IPS LED LCD panel without using it for a long time (many years), will the pixels develop dead and stuck pixels? Can liquid crystals settle over time, leading to slow response times or “stuckness”, where they may not change state correctly when turned on after years of inactivity? Do LEDs and backlights die or lose efficiency?

 

[IRstuff]

Question - LCD Lifespan & Long-term Storage

We recently closed an office, and took the left-behind LCD monitors back to our main office for storage. They're decent widescreen monitors which we expect to re-use in about 1-2 years time, so we're not keen on selling now and re-buying again later. But we are worried the monitors might...

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[3DDave]

What difference does it make? If settling is some problem are you going to flip them over every few months?

Dead pixels are from damage to the drive transistors that control the voltage that causes the crystals to polarize and has nothing to do with the liquid itself.

Funny enough, I had a line develop on a LCD TV; I went to the edge of the screen and gave it a sharp rap with a flick of my finger where the line was, which hurt a bit. It dislodged the rubber contact strip inside to realign with the electrical connection on the screen itself and, with electrical contact restored, the line went away. I think it developed from differential thermal expansion; with the TV warmed up when I flicked it the rubber ended up properly aligned. It's been a long time and the screen is still fine.

LEDs will be fine and Cold Cathode lamps (preceded LED backlights) will not be harmed by long storage.

The most likely problem is electrolytic capacitors in the power supplies. They are electrochemical devices that can corrode or dry out. If they corrode they will leak and can damage the circuit board they are mounted to. Except for removing them and then resoldering replacements there isn't much to do to prevent this mode of failure.

 

[lucas88]

Long-term many years storage of IPS LED LCD displays for years without use causes aging and loss of efficiency of LEDs and backlight? Causes problems with the liquid crystal, generating dead pixels or other problems that are permanent on the LCD? My devices are portable with only SMD components, handheld consoles Powkiddy Q80 and R36S

My storage conditions 34-36C 58-68% RH

 

[3DDave]

Oh, you again. The capacitor guy. Take the devices and find a crusher and toss them in and leave us alone.

 

[analogkid2digitalman]

I thought this smelled of familiarity...

 

[IRstuff]

3D, I think you need new glasses; particularly since OP only just posted about his capacitors again.

 

[lucas88]

This topic is not about capacitors but about LCD LED IPS displays, so the answers are only about displays and not a previous topic.

 

[IRstuff]

This topic is not about capacitors but about LCD LED IPS displays, so the answers are only about displays and not a previous topic.

The line of discussion is identical and worthless to continue

 

[MintJulep]

Long-term many years storage of IPS LED LCD displays for years without use causes aging

Yes, time causes aging.

 

[lucas88]

My devices are handheld consoles Powkiddy Q80 and R36S

My maximum long-term storage temperature is 36C with humidity 58-68%, do LEDs have a maximum temperature they can withstand before they start to degrade and lose efficiency and brightness? Is the backlight associated with LED degradation?

Does LCD (liquid crystal) have a maximum storage temperature it can withstand before it degrades? LCD is organic, so it degrades quickly?