Need advice: Dark shadows developed in screens of 4 different devices within six weeks. May this be an electrical issue?

[Vortigern]

I think it is the hand cream you use

 

[Darkwood]

Looking at the white screen one, that looks like screen uniformity not been good, given these are budget models for that size screen it is to be expected the quality of screen build will be lesser than a top end one, I have a flagship model and still have a little screen uniformity issue with that.

 

[Nancha]

Thanks once again for your feedback.

Happy to hear that it does not seem an electrical issue, yet still a bit clueless.

I neither have kids, nor pets that could have caused the issue.

After having experienced the stains with the first TV, I have assumed I must have damaged it somehow during cleaning. The newly purchased TV, as well as its replacement, I handled with utmost care and made sure not to touch, clean or lift the TV (thus applying pressure on the frame).

I also can exclude any transport damage as all devices were fine in the first few days and rapidly developed the issue.


Two follow-up questions however:

1. Since this has started appearing around the time I had Sky Q installed, is it generally possible that an attached HDMI device can cause any damage at all? I have three HDMI devices attached:

a) Philips Soundbar
b) Sony Playstation 4
c) SkyQ Box


2. Since moving into the new apartment, I have developed the habit to completely turn off the electricity on the power outlet directly. Should you not be familiar with Irish (and UK) power outlets, I have attached a picture below. Every evening I would shut the TV off with the remote, and a few seconds later, switch the button to off, to avoid having any consumption in the standby mode.

Might this be a silly thing to do and could potentially cause any damages (given it is done repeatedly)?

Thank you for your help!

Robert

 

[pc1966]

Happy to hear that it does not seem an electrical issue, yet still a bit clueless.

I neither have kids, nor pets that could have caused the issue.

After having experienced the stains with the first TV, I have assumed I must have damaged it somehow during cleaning. The newly purchased TV, as well as its replacement, I handled with utmost care and made sure not to touch, clean or lift the TV (thus applying pressure on the frame).

I also can exclude any transport damage as all devices were fine in the first few days and rapidly developed the issue.

Those would be my fist suspicions, followed by simple bad luck on the manufacturing.

Two follow-up questions however:

1. Since this has started appearing around the time I had Sky Q installed, is it generally possible that an attached HDMI device can cause any damage at all? I have three HDMI devices attached:

a) Philips Soundbar
b) Sony Playstation 4
c) SkyQ Box

I seriously doubt it. Having a static image for long periods can cause burn-in, but the artefacts you showed do not appear anything like an obvious logo or common program background.

2. Since moving into the new apartment, I have developed the habit to completely turn off the electricity on the power outlet directly. Should you not be familiar with Irish (and UK) power outlets, I have attached a picture below. Every evening I would shut the TV off with the remote, and a few seconds later, switch the button to off, to avoid having any consumption in the standby mode.

Might this be a silly thing to do and could potentially cause any damages (given it is done repeatedly)?

No, it should not make any difference. I normally turn of everything except the TiVo box (so it can record overnight programs) when I am not watching anything.

 

[DPG]

I would put serious money on this not being an electrical problem.

And that is from a Yorkshireman, who as most people will know is like a Scotsman with all the generosity squeezed out of him.

 

[static zap]

These modern screens do not have a thick sheet of glass .
(we added acrylic sheet in a workshop situation Tools , springs ..Solder )
Technically we called it Bruising.
Any Wii gaming equipment ! another mechanical favorite.
..childeren , pets and a route to the kitchen spring to mind.

 

[static zap]

Did have another thought , if its multiple devices ---and damp like patches.
a) Low heating + condensation issues.
b) Killing with kindness ... Incorrect cleaning substances / pressure !
(I will admit to Meths myself )
...Do you have a cleaner to blame . (best leave that alone if partner)
.