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Is this "normal" or "bad" vertical banding?

post #1 of 18
2/5/13 at 1:16am
Thread Starter 
Would you say this is "normal" or "bad" vertical banding for an LED TV? I have a Samsung UN32EH5000.

Thank you. smile.gif

For the testing I used this grey image: http://i.imgur.com/uD2xe.jpg



Edited by downtownriot - 2/5/13 at 1:28am
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post #2 of 18
2/5/13 at 12:35pm
Quote:
Originally Posted by downtownriot View Post

Would you say this is "normal" or "bad" vertical banding for an LED TV? I have a Samsung UN32EH5000.

Thank you. smile.gif

For the testing I used this grey image: http://i.imgur.com/uD2xe.jpg



Not unusual at all to see that amount on a grey slide. The big key is if you notice it on solid backgrounds while watching TV or when something pans across the screen. Everyone has a different tolerance level and it will all depend on how noticeable it may or may not be during normal viewing for you to be able to term it "bad".

But let's just say I have seen much, much worse than that.
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post #3 of 18
2/5/13 at 1:01pm
Quote:
Originally Posted by downtownriot View Post

Would you say this is "normal" or "bad" vertical banding for an LED TV? I have a Samsung UN32EH5000.

Thank you. smile.gif

For the testing I used this grey image: http://i.imgur.com/uD2xe.jpg



that's actually quite a bit better than on my TS01 (S-PVA panel) UN46EH6030

which panel version do you have?



also, vertical banding is most visible on dark grey test patterns... so check dark grey patterns to see vertical banding at its worst (those grays are somewhat brighter than the ones I'd use to expose vertical banding on a set)
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post #4 of 18
2/5/13 at 3:38pm
Quote:
Originally Posted by downtownriot View Post

Would you say this is "normal" or "bad" vertical banding for an LED TV? I have a Samsung UN32EH5000.

Thank you. smile.gif

For the testing I used this grey image:

*

Unless it appears more pronounced on darker gray screens or as when panning on a football or soccer field, that screen looks fairly decent.

"Vertical" banding often shows more defined dark to lighter borders. Based on your pictures, your panel just shows some typical lighter and darker screen areas that blend pretty well.

If you see little or no banding when program material is being watched I would say you have a good TV panel. It looks about typical and better than some of the 8 TVs I've purchased and set up for family and friends.
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post #5 of 18
2/5/13 at 6:39pm
Hi, I just bought a new tv, Samsung 40es6100, and I did this test too but it doesn't look great, what do you think? Thnaks to all in advance.
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post #6 of 18
2/5/13 at 7:02pm
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Originally Posted by Hanna View Post

Hi, I just bought a new tv, Samsung 40es6100, and I did this test too but it doesn't look great, what do you think? Thnaks to all in advance.

Unfortunately, unlike the OP images, that looks really bad. I'd return that one immediately.
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post #7 of 18
2/5/13 at 7:58pm
Quote:
Originally Posted by cmay91472 View Post

Unfortunately, unlike the OP images, that looks really bad. I'd return that one immediately.

Thanks, that's what I thought, I didn't notice it yet while watching tv (I didn't have time to see anything properly yet), but I know it's a really bad panel and I could have a better experience with this model. I don't know if the store will replace it or if they will just argue that that's not an issue for them....
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post #8 of 18
2/5/13 at 7:59pm
Quote:
Originally Posted by Hanna View Post

Thanks, that's what I thought, I didn't notice it yet while watching tv (I didn't have time to see anything properly yet), but I know it's a really bad panel and I could have a better experience with this model. I don't know if the store will replace it or if they will just argue that that's not an issue for them....

Where did you buy it?
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post #9 of 18
2/5/13 at 8:05pm
I bought it in a small store here in Portugal. I am portuguese.
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post #10 of 18
2/5/13 at 8:28pm
Thread Starter 
Quote:
Originally Posted by PlasmaPZ80U View Post

that's actually quite a bit better than on my TS01 (S-PVA panel) UN46EH6030

which panel version do you have?



also, vertical banding is most visible on dark grey test patterns... so check dark grey patterns to see vertical banding at its worst (those grays are somewhat brighter than the ones I'd use to expose vertical banding on a set)

I also have the TS01.

Since you have the same panel may I ask if you see faint vertical lines when viewing the "no signal screen" at extreme viewing angles? Anyone know if this is normal at extreme angles? At normal viewing angles the lines aren't visible at all.







Thanks again everyone for all the responses to my original question. smile.gif
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post #11 of 18
2/5/13 at 8:43pm
Quote:
Originally Posted by downtownriot View Post

I also have the TS01.

Since you have the same panel may I ask if you see faint vertical lines when viewing the "no signal screen" at extreme viewing angles? Anyone know if this is normal at extreme angles? At normal viewing angles the lines aren't visible at all.







Thanks again everyone for all the responses to my original question. smile.gif

If they are not visible at regular angles, don't worry about it. Your panel is an example of one that has very minor vertical banding.
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post #12 of 18
2/6/13 at 6:57am
Where can you see the panel information?
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post #13 of 18
2/10/13 at 3:58am
Thread Starter 
Quote:
Originally Posted by cmay91472 View Post

If they are not visible at regular angles, don't worry about it. Your panel is an example of one that has very minor vertical banding.

Well that's good to hear, thank you. Would you say most LED/LCDs suffer from some degree of vertical banding?
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post #14 of 18
2/10/13 at 5:32am
Quote:
Originally Posted by downtownriot View Post

Well that's good to hear, thank you. Would you say most LED/LCDs suffer from some degree of vertical banding?

Yes, almost all LED panels will display vertical banding to some degree. Some are minimal where it can only be seen on grey scale slides. Others are atrocious such as the Samsung 65ES8000 which is blatantly visible on almost all sources.
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post #15 of 18
2/10/13 at 4:23pm
the Samsungs with the S-PVA panel seem the most prone to it... other Samsungs with non S-PVA panels (like S-MVA, A-MVA, and Sharp panels) might still have it, but to a significantly lesser degree
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post #16 of 18
2/11/13 at 9:52am
It is interesting that some TV makes have a return to banding issues, which really are a manufacturing defect during bonding of the layers that make up an LCD panel. Maybe that's what comes with buying a low end basic feature LED TV. rolleyes.gif Not to mention the LEDs can degrade in as few as 10 months use as Chad-B found in a recent thread. Apparently the yellow producing element in the LEDs degrades and produces a color shift. It can sometimes be compensated for in calibration, but over time it is doubtful since it IS the actual light source for the LCD panel.

I have a 6 year old Mitsubishi LT-46231 with the S-PVA and have no banding whatsoever. It is the most uniform LCD panel I've seen compared to 8+ LCD/LED TVs I've purchased for friends and family over the past 2 years or so. It tops the S-IPS panel on my 42LD550 for lighting uniformity and black level also.

Back in '05 to 'early '08 there was no end to banding, columns, and clouding on all the major brands of LCD TVs. I had to return a Toshiba 47" in 2007 because it had three wide bands that were very visible especially on solid color back grounds in scenes.
Edited by Phase700B - 2/11/13 at 9:58am
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post #17 of 18
2/11/13 at 10:33am
Quote:
Originally Posted by Phase700B View Post

It is interesting that some TV makes have a return to banding issues, which really are a manufacturing defect during bonding of the layers that make up an LCD panel. Maybe that's what comes with buying a low end basic feature LED TV. rolleyes.gif Not to mention the LEDs can degrade in as few as 10 months use as Chad-B found in a recent thread. Apparently the yellow producing element in the LEDs degrades and produces a color shift. It can sometimes be compensated for in calibration, but over time it is doubtful since it IS the actual light source for the LCD panel.

I have a 6 year old Mitsubishi LT-46231 with the S-PVA and have no banding whatsoever. It is the most uniform LCD panel I've seen compared to 8+ LCD/LED TVs I've purchased for friends and family over the past 2 years or so. It tops the S-IPS panel on my 42LD550 for lighting uniformity and black level also.

Back in '05 to 'early '08 there was no end to banding, columns, and clouding on all the major brands of LCD TVs. I had to return a Toshiba 47" in 2007 because it had three wide bands that were very visible especially on solid color back grounds in scenes.

I wouldn't call the Sony 65HX950, Samsung 65ES 8000 or 70 Sharp Elite low end, but all three display vertical banding to some degree with the 65 ES8000 just being flat out atrocious.
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post #18 of 18
2/11/13 at 1:20pm
Quote:
Originally Posted by cmay91472 View Post

I wouldn't call the Sony 65HX950, Samsung 65ES 8000 or 70 Sharp Elite low end, but all three display vertical banding to some degree with the 65 ES8000 just being flat out atrocious.

Wow. . . you're right. It seems perhaps, the whole manufacturing process for LCD panels have spotty quality control. That said, you are likely to have more panel issues with screen sizes over 40".

Also, maybe they try and crank so many out much too fast or other manufacturing process issues enter into it .

Here's an article about banding:

http://www.youtube.com/watch?v=_yzYtAsrKPA
Edited by Phase700B - 2/11/13 at 1:28pm
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