Replacement of the joint for W530

Hi all

A few months ago, in this forum, I asking me for information about the compatibility of signs for the wince my Panel W530, AUO B156HTN01, is a less powerful Panel. I get the contrast ratio is less than 400: 1 (average 330:1) and color cast I get is too blue. While I have a laugh X i1 Display Pro to correct the pitches with the LUT of the graphics card, I still have problems with the angles of vision (very bad) and a bit of a magenta cast and the low level of contrast as well as the screen door effect which is annoying in white or near white surfaces.

I'm a photographer and I would approve this computer for work on the field and color delicate work, but the difference between this and my NEC monitor is too big to ignore. So, in the hope that the v4 or v7 will improve things compared to the Panel that gave me, I feel as if I had nothing much to lose.

So, I investigated a bit trying to get their hands on a v4 B156HW01 panel or a v7 (brilliant with better contrast than v4) and increasingly used those cannibalized from other systems, I was never able to get a good replacement.

So far. I managed to get an old stock seller through a contact in Asia and will get a v7 v4s being really out of stock everywhere wherever I can find. Those who try to sell you v4s you will likely receive a "compatible" part... but not the same panel.

I know that brilliant is not everyone and it's certainly not mine, but I have colleagues who work with happiness on their macs very bright and while they dislike screens nice masts, chandelier did not prevent any of them to work. The difference of color in the B156HTN01 permanently prevents me from working so I'll give that a go. Better precision on glossy paper is better that a shit mate.

I will post differences on a before and after the State of the computer. To make it fair, I'm going to re - install everything (windows and batch) to ensure that any previous color calibration is left on this computer to change the perception of the signs.

If anyone in the United Kingdom or HAD is interested, I'd be happy to get another, and we can divide the total. The panels would come to England so if you are in the European Union you need cover shipping from me to you.

Final part.

For anyone in England, be aware that your package may take about 10 days to pass customs and an extra 48 hours to Parcelforce to deliver the parcel.

So, after this long wait, I received the new v7 Panel and began to make the Exchange.

Before that, however, to give the Panel a B156HTN01 fair to prove himself, I took some pictures with the Lenovo default color management profile. See the first launch of two images, blue, from two angles.

Now to my point of view, I ran a quick profile with the largest range of i1 Profiler (Yes, I know it has its drawbacks, but for a quickie profile is not horribly wrong and the contrast ratio is persistent)

This is the result.

See here the contrast ratio is 247: 1... very bad.

I followed the video of this gentleman to do the Exchange.

http://www.YouTube.com/watch?v=Igk0MiqZ_ck

To take the bezel out, however, I used a lens clening Microfiber cloth to place my fingers between the screen and the bezel and he jumped in an easier way than shown in this video. So if you go by with the spirit which.

Tests after replacement to see if it works.

Glossy screen W530

Profile color management on the new vs NEC PA241w v7 for reference monitor (the NEC screen is calibrated to 6500 k, range of the aRGB and gamma 2.2) by default

Now, with DispcalGUI takes some time, but, since we want to measure the success or failure of the new Panel v7, I ran it. The following screenshot shows the almost corresponding screens with the v7 and NEC monitor AFTER profliing with DispcalGUI.

I was a little tired so I missed the horizontal framing for these two pictures. It is the report of DiscalpGUI.

Mind the 632:1 now and the black luminance contrast ratio is not too bad to 0.2 cd/m2. It is not a contrast ratio impressive many screens of 1000 +: 1 of today, but it's very good for a 2 year Panel, able to display most of the Adobe RGB color range as seen in this comparison with the NEC Spectraview graph. DispcalGUI for v7 on the left and for NEC PA241w Spectraview on the right.

On DispcaGUI, the dotted line represents the spectrum AdobeRGB and Spectraview is the yellow line.

Not bad, huh?

Tags: ThinkPad Notebooks

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