TV Backlight Bleed

planemad · 12-11-2017, 02:19 PM

Purchased a Panasonic TX58EX700B a few weeks back and over the last few days have noticed massive white patches all over the screen when watching dark movies. See below picture where I hve put the TV onto a black screen.

Excuse the focus on the camera its quite hard to picture when dark.

Is this a defect in the TV as most I have seen before have bleed on the edges not a circles.
Whats your thoughts?

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SkyJawa · 12-11-2017, 02:56 PM

That’s fucked, reject it. I had 2 Samsung’s like that, in the end went back.

Is it edge lit or back lit? Never seen a panny that bad!

....,,,,..,,.. · 12-11-2017, 03:01 PM

Yep looks like bit of an issue.

A lot of curved have that issue due to non uniform back light.

Dave_3 · 12-11-2017, 03:14 PM

Most backlit TVs will show some of this, although looks a bit pronounced.

Why I sway to an OLEDTV if watching in the dark .....

D.

ajfoggy · 12-11-2017, 03:20 PM

I have a similar thing two Panasonic plasmas. Took a lot of pissing about and arguments and in the got a refund.

planemad · 12-11-2017, 04:16 PM

More Pictures in a better light. - is this normal effect of such a back lit TV or is this excessivly bad?
I have until 20 Dec to return as faulty.
I think its got worse over the last few days, especially now as I notice it!

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ioannisG · 12-11-2017, 04:23 PM

Return it. And buy a TV with full local dimming and full backlight (direct lit) instead of edge lit. They are much more uniform than an edge lit display that will always show some backlight clouding towards the edges. Also curved screens don’t help either. It’s not normal but not unusual either. Try googling lcd tv clouding and you’ll see what I mean

. When I was buying mine a couple of years ago (Samsung UE55JU7000) I had to search quite a bit to find a tv that had full dimming and full backlight so I didn’t suffer from this.

planemad · 12-11-2017, 04:33 PM

Seems like it’s not just me https://www.hotukdeals.com/deals/pan...210-ao-2812580

73henny · 12-11-2017, 04:44 PM

You're first picture looks more like clouding / uniformity than backlight bleed. BB tends to be more around the edges. Clouding can in some instances be reduced greatly (this gives some advice on how to get the best results).

https://www.rtings.com/tv/tests/pict...-flashlighting

Where did you buy it from?. As mentioned by others, you could take it back. The best LEDs don't suffer from this now and have great uniformity.

SkyJawa · 12-12-2017, 03:08 AM

That defo needs returning, I could not cope with blacks like that, my edge lit curved Samsung drove me mad. I returned it and bought a flat panny with backlight and local dimming and have had no such issues since.

goodbyalfa · 12-12-2017, 06:55 AM

Swap it for a Sony 55EX9005 and you won't look back...

12-11-2017, 02:19 PM	#1
planemad Lieutenant Colonel 773 Rep 1,643 Posts Drives: 2020 Audi SQ7 & 2019 AM DB11 Join Date: Mar 2013 Location: The Democratic Peoples Republic Of South East England iTrader: (0)	TV Backlight Bleed Purchased a Panasonic TX58EX700B a few weeks back and over the last few days have noticed massive white patches all over the screen when watching dark movies. See below picture where I hve put the TV onto a black screen. Excuse the focus on the camera its quite hard to picture when dark. Is this a defect in the TV as most I have seen before have bleed on the edges not a circles. Whats your thoughts?
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12-11-2017, 02:56 PM	#2
SkyJawa Major General 3719 Rep 8,636 Posts Drives: F10 530d Join Date: May 2014 Location: Hampshire iTrader: (1)	That’s fucked, reject it. I had 2 Samsung’s like that, in the end went back. Is it edge lit or back lit? Never seen a panny that bad!
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12-11-2017, 03:01 PM	#3
....,,,,..,,.. General 6733 Rep 20,651 Posts Drives: xxxx Join Date: Dec 2013 Location: xxxx iTrader: (0)	Yep looks like bit of an issue. A lot of curved have that issue due to non uniform back light.
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12-11-2017, 03:14 PM	#4
Dave_3 Brigadier General 652 Rep 3,445 Posts Drives: G22 M440D Join Date: Oct 2006 Location: CH / SCO iTrader: (0) Garage List 1973 Escort RS2000 MK1 [10.00]	Most backlit TVs will show some of this, although looks a bit pronounced. Why I sway to an OLEDTV if watching in the dark ..... D. __________________ Escort Mk1 RS2000 (2.1 2x44IDFS, BVH, Kent FR32, 5spd, 180 BHP) : M440D ¦ Previously : F32 435D : F32 430D M Sport sDrive, 335D E92 2006
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12-11-2017, 03:20 PM	#5
ajfoggy Brigadier General 1517 Rep 3,560 Posts Drives: C63s - S205 - Brilliant Blue Join Date: Oct 2014 Location: Warrington iTrader: (0)	I have a similar thing two Panasonic plasmas. Took a lot of pissing about and arguments and in the got a refund.
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12-11-2017, 04:16 PM	#6
planemad Lieutenant Colonel 773 Rep 1,643 Posts Drives: 2020 Audi SQ7 & 2019 AM DB11 Join Date: Mar 2013 Location: The Democratic Peoples Republic Of South East England iTrader: (0)	More Pictures in a better light. - is this normal effect of such a back lit TV or is this excessivly bad? I have until 20 Dec to return as faulty. I think its got worse over the last few days, especially now as I notice it!
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12-11-2017, 04:23 PM	#7
ioannisG Private First Class 67 Rep 192 Posts Drives: 330d F30 Join Date: Feb 2017 Location: London iTrader: (0)	Return it. And buy a TV with full local dimming and full backlight (direct lit) instead of edge lit. They are much more uniform than an edge lit display that will always show some backlight clouding towards the edges. Also curved screens don’t help either. It’s not normal but not unusual either. Try googling lcd tv clouding and you’ll see what I mean . When I was buying mine a couple of years ago (Samsung UE55JU7000) I had to search quite a bit to find a tv that had full dimming and full backlight so I didn’t suffer from this. Last edited by ioannisG; 12-11-2017 at 04:35 PM..
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12-11-2017, 04:33 PM	#8
planemad Lieutenant Colonel 773 Rep 1,643 Posts Drives: 2020 Audi SQ7 & 2019 AM DB11 Join Date: Mar 2013 Location: The Democratic Peoples Republic Of South East England iTrader: (0)	Seems like it’s not just me https://www.hotukdeals.com/deals/pan...210-ao-2812580
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12-11-2017, 04:44 PM	#9
73henny Lieutenant Colonel 501 Rep 1,580 Posts Drives: a lovely new G20 320dx Join Date: Nov 2012 Location: Scotland iTrader: (0)	You're first picture looks more like clouding / uniformity than backlight bleed. BB tends to be more around the edges. Clouding can in some instances be reduced greatly (this gives some advice on how to get the best results). https://www.rtings.com/tv/tests/pict...-flashlighting Where did you buy it from?. As mentioned by others, you could take it back. The best LEDs don't suffer from this now and have great uniformity. __________________ G20 320dx. Every option except a tow bar '20 Subaru XV 2.0. Gone; F30 335dx, F30 330dx, F21 LCI 125d, F48 X1 20dx, F10 520d
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12-12-2017, 03:08 AM	#10
SkyJawa Major General 3719 Rep 8,636 Posts Drives: F10 530d Join Date: May 2014 Location: Hampshire iTrader: (1)	That defo needs returning, I could not cope with blacks like that, my edge lit curved Samsung drove me mad. I returned it and bought a flat panny with backlight and local dimming and have had no such issues since.
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12-12-2017, 06:55 AM	#11
goodbyalfa King of the North (living in the east...) 1056 Rep 2,155 Posts Drives: M340i mineral white Join Date: Apr 2015 Location: Suffolk iTrader: (0)	Swap it for a Sony 55EX9005 and you won't look back... __________________ 2021 M340i in mineral white, options galore Previously 2018 440i GC in MG 2015 330D F30 MSport EBII 2012 Alfa Guilietta 2.0d Veloce 2009 Fiat bravo sport 2000 ST Mondeo
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