Lg with backlight Bleeding problem

**Mr 672A** · 25-07-17, 01:50 PM

We have a new 4K LG and it has a backlight bleeding issue. It only bleed on the bottom right Horizontal side. It looks like it could be about two that are bleeding.
Question!
Can they fix it or do they have to replace the Panel itself or replace the TV. The TV is only about 2 weeks old and has replaced the one we had before (about 3 weeks) that had another problem. both tv the TV are the same make and model.

**Skepticist** · 25-07-17, 05:39 PM

Sounds like a manufacturing defect and replacement is warranted but check the warranty fine print for what 'they' consider a returnable flaw.
Repairing it probably isn't economical in terms of labour costs.

**Mr 672A** · 25-07-17, 06:29 PM

Originally Posted by Skepticist

Sounds like a manufacturing defect and replacement is warranted but check the warranty fine print for what 'they' consider a returnable flaw.
Repairing it probably isn't economical in terms of labour costs.

The tv cost just under $14000 and this is the second one we have had that has defects. The panel is good but the bleeding is the only issue. The other TV had other issue. Has anyone fixed backlight bleeding from a LED LCD tv

**mtv** · 25-07-17, 06:57 PM

Originally Posted by Mr 672A

The tv cost just under $14000 ....

At that price, surely it's an OLED model, which has no backlight.

**Mr 672A** · 25-07-17, 08:33 PM

Originally Posted by mtv

At that price, surely it's an OLED model, which has no backlight.

No its a LG 86 SJ957T Super Led LCD

**Skepticist** · 25-07-17, 08:35 PM

$14 grand :O
Don't give up till they get one to you that's flawless

**Mr 672A** · 26-07-17, 10:11 AM

Originally Posted by Skepticist

$14 grand :O
Don't give up till they get one to you that's flawless

At that Price you would expect that the tv to be near to perfect but you can see that LG must not have QC. Baclkight bleeding happens a lot on budget TV's but this is not acceptable on a $14,000 TV.

**Mr 672A** · 26-07-17, 10:14 AM

So by the look at it now one has heard and TV being repaired with this issue. I have read article about people fixing them 100% but this can only be confirmed by a person that fixed LCD,

**Skepticist** · 26-07-17, 11:05 AM

Do you have a pic of this 'bleeding'?
I've converted some edge-lit CCFL monitors to LED strips and there's a 'footlights' type effect at the top and bottom of the screen due to the diffusion being different to the even lighting of the original CCFL tubes. It's noticeable but not too distracting and though I could have experimented with some reflective masking to fix it somewhat, that would be just cosmetics for what was a free monitor. And I know how much work there is in totally dismantling and re-assembling these (highly susceptible to static) things.

**TVguy** · 27-07-17, 12:11 AM

Originally Posted by Skepticist

$14 grand :O
Don't give up till they get one to you that's flawless

You will be waiting for eternity. All lower edge lit LCD panel suffer from light leakage.
The obsession with every thinner panels and minimised bezels has brought us to this place (very few direct lit displays nowadays).
The LCD blocks light as best it can, and the IPS LG panels will leak light around the corners. Expecting an 86" panel to diffuse light evenly across the whole screen is unrealistic in a consumer grade product.
Watching 2.40:1 scope content (with masking bars) on an LED edge lit LCD TV in a dark room will always reveal light leakage.
is recommended by SMPTE and a great many other organisations.
If you want black blacks, then OLED is the only choice.
LCD TVs suck; plasma was magnificent, but legislated out of existence. Even OLED is a "sample and hold technology" that suffers from the same blur and judder of LCD.

**Mr 672A** · 27-07-17, 10:13 AM

Originally Posted by Skepticist

Do you have a pic of this 'bleeding'?
I've converted some edge-lit CCFL monitors to LED strips and there's a 'footlights' type effect at the top and bottom of the screen due to the diffusion being different to the even lighting of the original CCFL tubes. It's noticeable but not too distracting and though I could have experimented with some reflective masking to fix it somewhat, that would be just cosmetics for what was a free monitor. And I know how much work there is in totally dismantling and re-assembling these (highly susceptible to static) things.

Yes LG got about 10 of them

**Mr 672A** · 27-07-17, 10:40 AM

Originally Posted by TVguy

You will be waiting for eternity. All lower edge lit LCD panel suffer from light leakage.
The obsession with every thinner panels and minimised bezels has brought us to this place (very few direct lit displays nowadays).
The LCD blocks light as best it can, and the IPS LG panels will leak light around the corners. Expecting an 86" panel to diffuse light evenly across the whole screen is unrealistic in a consumer grade product.
Watching 2.40:1 scope content (with masking bars) on an LED edge lit LCD TV in a dark room will always reveal light leakage.
is recommended by SMPTE and a great many other organisations.
If you want black blacks, then OLED is the only choice.
LCD TVs suck; plasma was magnificent, but legislated out of existence. Even OLED is a "sample and hold technology" that suffers from the same blur and judder of LCD.

Yes you cannot buy OLED at 85 or 86 inch we have a big TV room and the 86 inch is too small. I had a 100 Inch Hecto before.The LG 77 OLED is $39,000. I have elaborate Biased adjustable LED Lighting behind the TV (goes all around the TV) and thats because the BLACKS on a IPS panel is no good I'm not complaining about that, I'm complaining about two led's that are bleeding. I have the Best Dimmable ceiling LED lighting (put it in last weekend) in the TV room, YES LED light that are 100% dimmable as this is also good for IPS TV whilst watching a Movie. The Problem is sometimes visible during the day whilst watching A movie with the sun coming in the window so by this its just not night.
This TV is used for Movies only and when I say Movies only I'm talking about UHD HDR Movies that I use with our 4K players, Panasonic DMP UB 900 for HDR 10 and Opppo UDP 203 for Dolby Vision and some HDR 10. and yes I'm up with all the technology today and issue but I'm still wanting the Question answered. Considering the TV is expensive Can backing bleeding be fixed? Its simple Yes or No.
By the way the First LG 86SJ957T had NO Bleeding issues but suffered another issue and that was returned pronto.

**TVguy** · 29-07-17, 05:28 PM

Originally Posted by Mr 672A

..Can backing bleeding be fixed? Its simple Yes or No.

No.

**TVguy** · 29-07-17, 05:39 PM

**Mr 672A** · 01-08-17, 12:49 PM

Originally Posted by TVguy

Not as bad as that but still was noticeable. Now I say was Noticeable as its 95% fixed now and the remainder is my brain playing tricks.
This is what it look like before.

Next time I will take a after shot on the same scene

**Mr 672A** · 01-08-17, 01:09 PM

Well I need a Free Hosting and I will put the same scene on before and after and surprise its GONE. I googled this issue and found after 2 hours of googling a guy that ??? well I can say it until warranty is finished. Again when i find another photohosting website ill show the before and after on the same movie and the same scene. The movie was. The Accountant in 4K

**Mr 672A** · 01-08-17, 02:05 PM

Try Again

**Mr 672A** · 01-08-17, 07:08 PM

Arghhh I forgot. I picked the wrong photo of the 8 sent to LG as the photo above has a white background above the problem bleeding LEd's. It does this (60% of the Time) on any other shot even with grey or black background above the bleeding leds. Now it seems to be ok and will test a new 4K HDR movie tonight. On the Weekend I tested and watched The Fate and the Furious with DV (Dolby Vision) and it was excellant

**Mr 672A** · 02-08-17, 09:10 AM

No it gone even with the darkness of room and even with my back lights turned on. Take note of the dates when the TV had backlight bleeding on the bottom right hand side compared to the TV fixed on todays date.

With the Back light on