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122 Posts

11-09-2017

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  • Message 1 of 19

OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-24, 3:15 AM

Looking to buy P53, but want to hear from owners if there's any issues that I should be aware of.

 

Thanks in advance.

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54 Posts

10-20-2019

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  • Message 2 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-24, 4:03 AM

I have had no issues with my OLED screens. 

So far, I've had 2 P53 laptops. Both had great screens.

 

I would recommend the color calibration for $10 and the lenovo pro pen for $30.

 

Worth it for $40, in my opinion. 

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112 Posts

09-08-2019

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  • Message 3 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-24, 10:25 AM

Several members have reported visible (and annoying) lines and dots on OLED assemblies;

Worth further research …

Could be an isolated defect as well common "feature"; 

 

 

P73 6c Xeon, RTX 5000, 2TB NVMe Samsung x 2, 7.6TB 2.5 SATA Micron SSD, 64gb ECC ram
Prior: Razer Blade Pro, Variety of Mac Books (2001 - 2015)
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2371 Posts

04-20-2008

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  • Message 4 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-24, 12:15 PM

 wrote:

Several members have reported visible (and annoying) lines and dots on OLED assemblies;

Worth further research …

Could be an isolated defect as well common "feature"; 

 

 


It appears to be a "feature" of this panel when combined with the mult-touch interface. Depending on your visual acuity and the use of a 100% white background, you may be able to see dots/lines very faintly. For some people, this is sort of a shimmering effect. There's been no one cause, but there is a subpixel orientation of the blue pixels that leaves a slight gap between them and which might be a contributing factor. Usually, if you are viewing the display at a normal distance of 18"+, it should not be very apparent. There are also some artifacts from the digitizer wires that might be visible at times as well. Personally, I can see a couple of small lines on the very top of the display when it is off on every multiouch panel (OLED or IPS LCD) display panel that I own which is part of the digitizer panel. All of this said, the OLED display is gorgeous in color rendition, has great black levels, and, as the panel gets used, it seems to me that the lines are much less visible. There are a couple of threads in which people have posted their opinions and attached pictures of what they are seeing. All of this is subjective, of course. Some people are sensitive to PWM which is used to adjust the perceived brightness level of a display. The PWM frequency of this panel is 60Hz which may bother some people who are sensitive to its effects.

 

YMMV


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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122 Posts

11-09-2017

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  • Message 5 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-24, 20:29 PM
That's unfortunate to hear.

At what point does the OLED panel exhibit PWM? Is there an option to disable PWM and use DC Dimming?

When you change from hybrid graphics to discrete in the BIOS, does the PWM persist or did the characteristic change?

Lastly, did anyone ever get their panel replaced due to the dots issue? How did the replacement panel fare?







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2371 Posts

04-20-2008

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  • Message 6 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-24, 21:16 PM

The panel uses PWM for all brightness levels less than 100%. However, you can just keep the brightness at 100% without affecting black levels. All replacement panels resulted in no change in visual appearance as reported by several members. As I said, you may or may not notice anything since it is all about visual acuity. I can hardly notice the lines anymore. However, a couple of members noted that they had moire patterns when using Photoshop editing. I haven't seen this myself, but it is possible with the touch grid and the AR and AS coating blocking some light wavelengths.


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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122 Posts

11-09-2017

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  • Message 7 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-25, 2:41 AM

 wrote:

The panel uses PWM for all brightness levels less than 100%. However, you can just keep the brightness at 100% without affecting black levels. All replacement panels resulted in no change in visual appearance as reported by several members. As I said, you may or may not notice anything since it is all about visual acuity. I can hardly notice the lines anymore. However, a couple of members noted that they had moire patterns when using Photoshop editing. I haven't seen this myself, but it is possible with the touch grid and the AR and AS coating blocking some light wavelengths.


Does your OLED screen get affected when at maximum brightness? LTT has a video that showcases the downside of OLED panels on the Blade: 

 

https://www.youtube.com/watch?v=GtQPwbftSLg

 

I've gotten disorientation because of PWM before, and that's with screens that are >60hz pwm range.

 

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2371 Posts

04-20-2008

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  • Message 8 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-25, 10:25 AM

I've not noticed this in everyday use, but I use dark mode on the background screen and on the browsers. There's nothing that can get done about the PWM for this panel. The 4k IPS panel PWM is 26040 hz.


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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64 Posts

03-16-2016

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  • Message 9 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-25, 18:56 PM

 wrote:

 wrote:

Several members have reported visible (and annoying) lines and dots on OLED assemblies;

Worth further research …

Could be an isolated defect as well common "feature"; 

 

 


 ...  All of this said, the OLED display is gorgeous in color rendition, has great black levels, and, as the panel gets used, it seems to me that the lines are much less visible. ...

 

YMMV


I agree 100%, this display is the best I've ever seen on a computer/laptop.  The colors are absolutely georgeous.  I'm blown away everytime I boot it up.

 

As for myself, I haven't noticed any visible lines or dots in my normal use.

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2371 Posts

04-20-2008

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  • Message 10 of 19

Re: OLED issues on the P53 / P1 Gen 2 / X1 Extreme Gen 2 ?

2019-11-25, 22:11 PM

Well, the artifacts were were definitely present when I first looked at the screen. That said, I agree that I cannot see them in normal usage. However, if I crank up the brightness to 100% and look closely at a white screen, the faint lines seem to fade in and out. Since the panel can't be making things fade, it must be a sensitivity in my visual acuity that allows me to see them. Sort of like a sensitivity that some have for PWM. 


P53 XEON 2276 BIOS 1.28 OLED UHD 4K Multi-touch display, 96GB RAM, RTX5000, RAID 1, 1TB x 2 Samsung PM981, 1TB PM981, WWAN
P70 XEON 1505, BIOS 2.35, 4k Display, 64GB, M3000M NVIDIA GPU, RAID1 1TB Samsung PM981 PCIe-NVMe SSD x 2, 2x Samsung 850 Pro 1TB SSD. EM7455 WWAN
P1. BIOS 1.25,Xeon Processor, 4k UHD IPS multi-touch display, 32GB, PM981 1TB x 2, RAID1

I am not an employee nor an agent of Lenovo.
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