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125 Posts

01-30-2016

Denmark

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Re: When do we finally get a good screen? (P50 4K)

2016-06-06, 19:16 PM

It cannot possibly be the matte coating as that coating sheet applied to the front polarizer has no polarizing effect in it self.

 

Would it be possible for you - when you have time - to take some side by side photos with the Dell next to the P50, showing identical images on and slightly off-angle? And post here ? It is really rarely that people have the opportunity to be able to compare both displays. As of right now no-one has the "proof" that the P50 4K panel behaves differently from the Dell variant.

I would be extremely grateful for that, as it would probably help me solving my RMA case, and it might be helpful for others too.

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40 Posts

11-29-2014

United States of America

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Re: When do we finally get a good screen? (P50 4K)

2016-06-07, 0:55 AM

@tk-don I would be glad to take photos side-by side. Do you or others possibly have a web URL that would be good to have on the screens while taking the pictures? My test case would probably go something like this:

 

* Place machines side-by-side

* Set each machine at full brightness

* Open URL in browser on both machines and hit F11 to go full screen

* Take photo of each machine on-center

* Take photo of each machine from the top making sure to get both machines in the shot

* Take photo of each machine from the left and right - making sure to get both machines in each shot.

 

I don't want to over-bother my co-worker so I hope to get this in one session. Let me know if I'm missing something.

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125 Posts

01-30-2016

Denmark

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Re: When do we finally get a good screen? (P50 4K)

2016-06-07, 17:47 PM

Bthurber,

 

Some of the images from this page would be good:

http://www.lagom.nl/lcd-test/viewing_angle.php

 

In prioritized order:

- Just a standard image showing full white in fullscreen in Paint would be nice to see from the sides.

- The first image from the Lagom.nl link with the Lagom text viewed from the front and side,

- The next ones from the Lagom sites in purple, and blue from the sides

 

This amounts to a lot of pictures and time, so it is perfectly fine if you can't do all of them :)

 

Rather than setting each machine to full brightness, I would set it to what appears to be the same brightness on both, so that the camera doesn't "overpower" one of the displays, and make the other look dark. This will probably mean reducing the brightness of the Dell a bit. Otherwise your plan sounds excellent.

 

Thank you very much in advance. And no, definitely don't bother your co-worker about this, altheough he/she will probably understand the mission you're on if you show him/her the P50 display :(

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125 Posts

01-30-2016

Denmark

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Re: When do we finally get a good screen? (P50 4K)

2016-06-14, 20:06 PM

@Bthurber, Just to make sure you saw my last reply (you haven't been online since your last post, so you might not even have seen my reply) :)

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5 Posts

06-28-2015

Milan

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Re: When do we finally get a good screen? (P50 4K)

2016-06-15, 13:36 PM

Hi there,

do you know if the 4K display for W541 is compatible with P50?

Thanks

Alberto

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125 Posts

01-30-2016

Denmark

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Re: When do we finally get a good screen? (P50 4K)

2016-06-15, 17:21 PM

Hi Alberto,

 

The W541 could only be configured with a FHD and 3K display. The 3K display is 15.5", from all the advertisement I've seen, so the bezel needed would be slightly different. If there indeed is a difference in W541 bezels I don't know.

As to working in a P50; probably doable, but the EDID might need to be re-written in order not to not be "blacklisted", making brightness adjustments impossible to modify.

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2 Posts

02-25-2016

Australia

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Re: When do we finally get a good screen? (P50 4K)

2016-06-16, 6:41 AM

I've been meaning to reply to this thread but have been busy. I purchased a p50 with 4k display a few months and had the same issues mentioned here and ended up returning it. The darker corners were highly annoying but i noticed a similar issue with a  FHD display in a e460 (display brand unknown) but also in a t440p with FHD LG display. I'm still wondering if it was the coating causing this? For the t440p i ended up replacing the display with a FHD model from AUO and it is much better with no major issues like the others. So for now i will stick with a t440p.

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40 Posts

11-29-2014

United States of America

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Re: When do we finally get a good screen? (P50 4K)

2016-06-16, 10:42 AM

Dell XPS 15 UHD and Lenovo P50 UHD side-by-side comparison shots. I had to do this quickly so I didn't get all the shots I wanted. 

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200 Posts

06-14-2016

Sweden

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Re: When do we finally get a good screen? (P50 4K)

2016-06-16, 10:51 AM

Assuming they both are on maximum brightness and images look like it does IRL, that kind of killed my interest for the P50 :(

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40 Posts

11-29-2014

United States of America

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Re: When do we finally get a good screen? (P50 4K)

2016-06-16, 10:58 AM
- Both are on max brightness
- Both are at max native res
- P50 was Pantone Calibrated right before the test for white point D75 - which is whitest available. Gamma 2.2 (default).
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