HP LP2475w, IPS 24" Official Thread! (Now Available from OcUK)

cataferal said:
Good photos! My screen looks exactly the same. I'm really confused as to why they let a problem like this through the QA process - particularly for a business, wide-gamut (typically photography orientated) monitor which is therefore advertised for it's colour accuracy.

IRT ecat: Absolutely. I have the BBC News website set as my homepage, so every time I open Mozilla i'm reminded of the problem. If you're on 360 hours with no change, It doesnt bode well for me... :P (also, edit made).

I'm not going to whine about it any more. I think it'll just have to go back. It's looking quite likely that I'll end up with the same defect, but I'll just keep sending them back until they get it right. :)
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go through warranty as they'll send a tech round to swap the panel out, hopefully they'll get you a good one. As far as QC goes, they are really at the mercy of LG.Display who seem to have dropped the ball on IPS panels recently.

However, as stated before, mine is now fine, and I do indeed work most days with an all white screen (programming in an IDE).
 
Will do. Thanks for the advice. Do LG.Display also supply Hazro with their H-IPS panels?

As mentioned, I've tried leaving the screen on a completely white background for 4 hours. No change at all; the red and green are still there. I would try for longer, but the HP man's coming in a few days anyway, so it's no big deal. :)

I'm still amazed at how difficult this whole 24" monitor business is. As I began my research, I passed these forums so many times thinking I'd never have to RMA several monitors before arriving at a one defect-free unit. I wouldnt have called myself especially pedantic, and yet here I am, reaching out for my third... :rolleyes:
 
Hi. I bought a HP LP2475w few days ago.
It has two stuck pixels (always red on a bright background) for sure; i can't say nothing precise about the third: it depends on the viewing angle, because when I am exactly in front of it, it seems a bit of dust (maybe an imperfection on the panel? i can't say); when i move left or right, it seems another red stuck pixel, but very "less red" than the two others (nearly pink).
That's not all...
Unlike ALL my previous LCDs (two on Acer notebooks and a Viewsonic VX2025wm; we can also add the built-in 20" LCD of a previous-gen iMac), the panel of my LP2475w seems "poorly attached" to the frame: when I try to clean it in the upper part, it goes behind a little (say 1 mm), as it is attached not for the whole border, but only up to 5 cm to the top.
I would have expected much more from a nearly €600 priced monitor. Defective pixels may depend on luck, but I can't believe that this can show a manufacturing quality I probably find on no-brand cheap LCDs in a mall.

I really need your opinion: is this poorly assembled unit likely to be changed? What about the manufacturing quality of YOUR units?

Thank you very much for your help.

Edoardo, sad&angry developer from Italy.
 
My advice to you would be to ring up the Tech Support. You havent got much to lose by just asking (save for a slight increase in the phone bill). Alternatively, you can post some photos here, and I'll tell you how it compares to mine (for free ;)).

From your description, it sounds faulty to me. My stand connection matches up perfectly to the screen's, and doesnt have any overlap.

Meanwhile, there's nothing you can do about the two stuck pixels. HP's dead pixel policy requires at least 5 stuck sub-pixels for this size/resolution monitor. If they're placed dead-centre, the tech team may be leanient to your case and send a new one though.
 
In the meanwhile, i read some previous posts about the green-to-red fading of the panel when set to a bright neutral (white/gray) color. Obviously, mine shows the same effect. Focused on stuck pixels and manufacturing problem, I didn't notice that. Another one reason to complain...
A note: my manufacturing problem does not affect the stand, but only the way the LCD "film" is attached to the frame. If you push it in the upper part, as when you clean the display, you can "push behind" the surface. Never seen that on a LCD monitor! It is not so good to see; moreover, it might be an easy way for dust or liquids (used for cleaning) to enter.

Edoardo
 
ingpipow said:
Unlike ALL my previous LCDs (two on Acer notebooks and a Viewsonic VX2025wm; we can also add the built-in 20" LCD of a previous-gen iMac), the panel of my LP2475w seems "poorly attached" to the frame: when I try to clean it in the upper part, it goes behind a little (say 1 mm), as it is attached not for the whole border, but only up to 5 cm to the top.
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I believe this is standard for IPS screens (especially larger ones) as the heat involved can make them expand/contract very slightly so some wiggle room is required (the Hazro also has this).
 
HP is going to replace my unit. I'm waiting the document to give to my local dealer to have a new monitor.

Hope the new one will be better than this...

Thank you for the suggestions, I will update you about the new one...

Edoardo
 
Alas, the HP Tech team didnt have any replacements available for a next day on-site exchange. So, they gave me an "Authorisation" form, which'll grant me a new unit from the reseller.

I must say though, HP Store's customer service is absolutely appalling. When I tried to offer this form to their sales department (being the "reseller", in this case), they became quite irritable, and couldn't even direct me to the people who could help. I spent hours ringing all the numbers, trying to find their replacement/refund centre, and they all simply directed me back to the Tech Support. Very disappointing.

Eventually, I convinced someone through an email that I had a right to a replacement, and they're now sorting it out for me. Avoid buying from their online store if you can.
 
The guy at the phone, who was very kind, was immediately for the replacement of my unit, as soon as he realized the defects I reported.
He offered me the choice between to have a (possibly) refurbished unit directly from HP or to perform the replacement with a new unit through the reseller. I could not see any reason to choose the 1st.
The man said I have this right in the first 30 days since purchase date.

Hope this will help.

Edoardo
 
Exactly the same for me. The HP Tech people were extremely helpful, and offered me those two options (I also took the second). It's the HP Store customer service that i depise; too unorganised.

The Tech Service told me that the green-to-red tinting across the screen was a fault in just a certain batch, and also occurs in the other models manufactured around the same time (such as the 22" TN). They're very familiar with these complaints (so much so, that they knew what I'd say after just a few words description), and seemed very eager to send a new one my way. I'll report back here when it arrives; with any luck it wont be from that same batch...
 
The second monitor arrived, and I sent the old one away. All one single exchange with the courier: very prompt and efficient work on the reseller's part. As I unpacked and set it up (I love that feeling...) I noticed that they have indeed sent me a brand new one.

The result? Slightly better; but now the tints are different colours. I'd call it a very subtle hint of red across the right side, and a blue hue to the top-left. If I open up a two-paged Word document (side by side), I can only barely make out a very slight difference in tone between the white pages. Also, the bookmarks tab is no longer a murky green, and white/blue/green colour-schemed forums dont change colour as I pan left and right. This is good.

Unfortunately, the grey borders on the BBC News website (and IMDB) show an incredible degree of variance. I cant remember how bad the previous monitor was, but I can very easily see a blue influence on the left. I'm on 10 hours backlight now, so I'll wait it out to see if it improves at all, or if I can get used to it. The uniformity issues are still there, but in a different, more preferable, way.

I dont think I'm ever going to get an absolutely perfect monitor, so it might also be prudent to quit while I'm ahead with this one. It's frustrating, but it may simply be that I've earned a product equivalent to the amount paid. The bonus for all my troubles is that, as of yet, I've yet to notice a single dead or stuck pixel on this replacement. Fingers crossed that one holds up. :P

Thanks very much for all your help, by the way. This forum answered a lot of my questions. :)
 
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Right then. It's going back.

This monitor ticks all the right boxes, as far as responsiveness, inputs, viewing angles and colour accuracy/black depth go. It's just that the hideous colour uniformity ultimately negates all these positives. Everyone in my family notices it straight away, sometimes without me even pointing it out. If I open up a white background, I can see blotches of grey. Meanwhile, the whole left side is blue, which makes the reds look slightly more purple. It makes greens and greys appear much lighter too, and can sometimes even diminish the blacks. The fact that this one noticably warps colours, and not just grey/white tones, makes it far worse than my first in my eyes.

I dont think I've just been unlucky; I'm hearing about this problem all over the Hard Forums as well. It seems to manifest itself with varying levels of intensity and colour, from blue, to green to red tints and patches. If you've ended up with a perfectly uniform panel (or, if it's so subtle you cant notice it), you're probably in the minority.

It's such a shame though, because besides this one manufacturing defect the display is truly excellent. Definitely go with this if your feeling lucky, or if you're averse to poor colour uniformity. As for me, I'm back on the market for a 24" IPS work/gaming monitor; any recommendations?
 
I've just seen the photos of your setup a few pages back. Wow, I'm really envious! Since you have two, you surely have one to spare? ;)

You and philjohn are proof enough to me that it is possible to get exactly what you want (ie. i'm not turning into some crazy OCD monitor fiend). I dont want to go through 5+ monitors before I find *the one*, though, which is sometimes what it takes (as seen with mrk's epic monitor search). I just want to buy a defect-free 24" monitor. Here are my options:

  1. Take another gamble with a replacement LP2475w (third time lucky!).
  2. Buy a Hazro 24Wi.
  3. Wait until February, and buy the new Hazro 24Wi revision (Wii?).
  4. Give up on 24" monitors, and just... buy a dog, or something.
 
Yessir. From what I've been told over at the Hard forums, at least (source). That was posted 2 months ago. Robbie Khan is known as mrk here, but he's had quite a bit of contact with the Hazro people, and from what I can tell, has been told there'll be onboard LUT in the next revision. Hopefully along with backlight display settings, resolved banding, and no green snow. :P

But, of course, that poses just as many risks as the Wi revision did. I wouldnt necessarily want to be first in line for that one, just in case the changes they make open up brand new cans of worms. It could, potentially, be the best all-round 24" monitor on the market if they pull it off without a hitch though.
 
Be cautious with waiting for next Hazro - 2 reasons.

cataferal said:
Yessir. From what I've been told over at the Hard forums, at least (source). That was posted 2 months ago. Robbie Khan is known as mrk here, but he's had quite a bit of contact with the Hazro people, and from what I can tell, has been told there'll be onboard LUT in the next revision. Hopefully along with backlight display settings, resolved banding, and no green snow. :P

But, of course, that poses just as many risks as the Wi revision did. I wouldnt necessarily want to be first in line for that one, just in case the changes they make open up brand new cans of worms. It could, potentially, be the best all-round 24" monitor on the market if they pull it off without a hitch though.
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The trouble with this is that last sentence, plus the February timescale. I thought the last Hazro was going to the "one". I have been following their monitors for a long time and contacted them in January. They told me their monitor would be ready by Easter (which was March) and it arrived when - September?, and then there are the numerous issues with it. I don't mean to slate it, as I believe its a v. fine monitor but I didn't want to take the gamble with the green snow.

I believe all the IPS monitors will provide some sort of compromise. I don't own a PS3, or Xbox or have a Blu ray player but wanted a monitor to be future proofed in case I do. (Hence the apple was out of the question). The Hazro was glossy and the HP wide gamut. But also note the new Hazro is rumored to be LED backlit, and this will be a wider gamut than the HP.

Wide gamut is an issue that isn't going to away as more an more monitors are (e.g sony laptops) and so we might as well get used to it, and that was the only potential downside (for me) with the HP.

I end the end got the HP a couple of weeks ago (at a v. good price BTW), and I absolutely love it. I don't use cleartype and thus don't have a text issue. The wide gamut bothers me in some apps but as I know use Firefox, and my photos (one of the main reasons for this monitor) look great in the properly colour managed apps, and thus as a rule I can live with the wide gamut. I can tweak hue and saturation in video apps to make them slightly more normal, and I quite like the extra colour I know see in icons and the like. The good thing is I know when I plug in the other stuff my HP isn't going to give me weird green snow.

In essence I realised after a 7 year wait to replace my CRT with a TFT I was never going to achieve the nirvana I was waiting for, but I don't regret my purchase.

Rgds
1stade.
 
I'm glad to hear that. Yes, I do think that, as customers parting with hundreds, we set an impossibly high standard for ourselves sometimes. I think this is partly to do with the way we've taken all the benefits of CRT technology for granted, such as the great viewing angles, response time, and black levels (just to name a few). It can be hard to adapt if you've used these monitors for the last few decades, as a great many of us have.

For me, the wide gamut on the HP was not a problem. I'd have preferred 72% NTSC, or a genuine sRGB mode, of course - but in practice I actually preferred the richness of the colours in some cases. It's an extremely well-built piece which will last you for years, and I'm sure the wide gamut future-proofs it in many ways, as you said. I let it go for different reasons, but I'd gladly return to it in a few months once the QA team have time to sort it out. And who knows? It might even be cheaper by then.

As for the Hazro: the fact that people still swear by the HZ24Wi, despite it's noted flaws, is very telling of the overall quality. I mean, how bad can it be? I'm still tempted, but I think I'd rather look back on it after a year, and see how it compares to the LP2475w (or other H-IPS screens) then. I can always make do with a decent TN screen in the meantime. :)
 
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