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LG 49UB8500 Blooming issue

by sleasyridr / October 11, 2014 1:36 AM PDT

I bought an LG 49UB8500 and i has a blooming issue with uneven lighting especially in the corners and edges. I understand some blooming is expected but this was bad enough that I sent them some pictures and they scheduled a replacement lcd screen. The first replacement was totally defective and I had them but my original screen back in. LG refered me to another repair shop I sent the pictures in and LG got them and replaced my lcd screen a second time. The new screen had worse blooming than my original screen. I took several more pictures to show how bad it was and now LG is saying this is expected for this technology and would not replace it again. I asked them to look at my picture and tell me that that is considered an acceptable amount of blooming and they just said they would talk to the engineers again but they already made their decision. Has anyone else had issues with blooming (uneven backlighting) on their LG TV? I can post a picture if anyone wants to see how bad it is.

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I think a lot of TVs are less than perfect.
by R. Proffitt Forum moderator / October 11, 2014 1:46 AM PDT
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Far far from perfect.
by sleasyridr / October 11, 2014 4:38 AM PDT

Thanks I had already seen that post during my research.
Like I stated I understand some blooming is expected but this is way beyond acceptable. I had another LG tv and it had some blooming but it was minor and acceptable.

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Picture of blooming issue
by sleasyridr / October 11, 2014 5:35 AM PDT
In reply to: Far far from perfect.
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My old Sony does the same.
by R. Proffitt Forum moderator / October 11, 2014 7:17 AM PDT

It's not a high end model and does leak a little light when all black happens. This is not blooming and par for the run of the mill model. Since this does not meet your standards, bail out now.
Bob

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LG 49UB8500 Blooming Issue
by LG_Electronics LG staff / October 15, 2014 2:29 AM PDT

Hi Sleasyridr,
Sorry to hear of your issues with the TV.
Believe it not, this Black Uniformity issue is not just common to LG TVs. It is an industry wide issue where Flashlighting or clouding on a TV are caused by improper diffusion of the backlighting across the entire screen. Usually, the bigger the LED TV, the more likely it will have uniformity issues. Backlight uniformity issues don't increase over time unless a large stress is put upon the panel (like a big temperature swing or moving it).
As R. Proffitt pointed out, Plasma TVs have perfect uniformity and are not prone to this issue, but then again, where's a good plasma when you need one!
Please send an email to: lg.care@lge.com and please provide them with the Model # of your TV, the serial Number and all your documentation of the repairs and any correspondence you had with LG on all these repairs. Make copies or scan and attach them to your email...IFV

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Thanks for the reply
by sleasyridr / October 15, 2014 4:33 AM PDT

Thank you and I am aware that all LCD TVs are prone to backlighting issues but at some point it can be excessive and i believe mine is to that point. And since the replacement LCD was even worse than the original I am hoping LG will try to at least get me back to where I was before the repair. My last TV was an LG 47" and it had some backlighting issues but was well within the acceptable range. My new one is only 49" so not much different in size. I will send all the details to the email address that you supplied.
Thanks again

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