Notebookcheck

Innolux ahead of AUO and BOE | Lenovo's Panel Lottery continues with 3 different 14-inch LowPower displays

The new 14-inch LowPower displays in Lenovo's T-series will probably be very popular options among customers, but similar to recent years, there are multiple suppliers and one clear winner. Update: ThinkPad X1 Carbon 2019 with fourth panel version from LG Philips

It is a familiar problem: Major manufacturers often use multiple suppliers for components, and Lenovo ThinkPads often suffered from noticeable quality differences between identical SKUs in the past. Now we have once again encountered this problem, because you will get one of three possible panels when you select the new 14-inch LowPower display with the 1080p resolution. This is a short summary of the models we have reviewed (or are still in review) so far:

Working For Notebookcheck

Are you a techie who knows how to write? Then join our Team! Especially English native speakers welcome!

Currently wanted: 
News and Editorial Editor - Details here

Model Panel Supplier Panel-ID
ThinkPad T490 i7/Nvidia BOE NE140FHM-61
ThinkPad T490 i5/iGPU BOE NE140FHM-61
ThinkPad T490s Intel AU Optronics B140HAN05.7
ThinkPad T495s AMD AU Optronics B140HAN05.7
ThinkPad T495 AMD Innolux N140HCG-GQ2
ThinkPad X1 Carbon 2019 LG Philips LP140WF9_SPF1

The following table shows our measurement results, and we only listed one of each panel type (only 1x T490 and T490s) to simplify the table. You can basically say that all three panels meet the specifications from Lenovo since the manufacturer is rather conservative with its claims (contrast 800:1, 400 nits brightness) to avoid complaints. Our AUO panel just missed the advertised value of 400 nits, but it is still very close at ~390, and all three models easily surpass the advertised contrast ratio.

Still, there is one clear winner with the Innolux panel in the ThinkPad T495. Compared to the other two options, it manages much faster response times, which is also noticeable in practice. It also features more precise colors and the widest color gamut.

Update: The LG Philips panel in the ThinkPad X1 Carbon 2019 is behind the Innolux panel when we consider all the measurements, but ahead of the other two. The response times are slightly slower compared to the Innolux, but still acceptable. The factory calibration of the screen is unfortunately not very good and you will have to calibrate it for the full potential.

Lenovo ThinkPad T490-20N3S02L00
NE140FHM-N61, , 1920x1080, 14
Lenovo ThinkPad T490s-20NYS02A00
B140HAN05.7, , 1920x1080, 14
Lenovo ThinkPad T495-20NKS01Y00
N140HCG-GQ2, , 1920x1080, 14
Lenovo ThinkPad X1 Carbon 2019-20QES01L00
LP140WF9_SPF1, , 1920x1080, 14
Response Times
Response Time Grey 50% / Grey 80% *
74 (33.6, 40.4)
61.6 (30.8, 30.8)
32.4 (16.4, 16)
44.8 (21.2, 23.6)
Response Time Black / White *
45.6 (22.8, 22.8)
38.8 (21.2, 17.6)
15.2 (6.8, 8.4)
27.6 (15.6, 12)
PWM Frequency
2451 (50)
26040 (50)
Screen
Brightness middle
418
391
420
381
Brightness
400
389
391
375
Brightness Distribution
88
87
88
94
Black Level *
0.24
0.23
0.29
0.24
Contrast
1742
1700
1448
1588
Colorchecker DeltaE2000 *
4.7
3.4
2.1
4.6
Colorchecker DeltaE2000 max. *
8.7
4.7
5.5
8.5
Colorchecker DeltaE2000 calibrated *
2.1
1.1
0.7
1.2
Greyscale DeltaE2000 *
5.9
4
3.4
5.1
Gamma
2.06 107%
2.49 88%
2.22 99%
2.52 87%
CCT
7350 88%
6809 95%
7168 91%
7052 92%
Color Space (Percent of AdobeRGB 1998)
59.9
62.4
63.5
60.7
Color Space (Percent of sRGB)
92.1
97.4
98.6
95.7
Total Average (Program / Settings)

* ... smaller is better

The problem for potential users is that you cannot check the panel-ID before you buy the laptop. It is therefore still a lottery with once clear winner thanks to much faster response times: the N140HCG-GQ2 panel from Innolux.

Update: The panel from LG Philips is not a bad choice, but is also beaten by the screen from Innolux.

Read all 13 comments / answer
static version load dynamic
Loading Comments
Comment on this article
Please share our article, every link counts!
> Notebook / Laptop Reviews and News > News > News Archive > Newsarchive 2019 06 > Lenovo's Panel Lottery continues with 3 different 14-inch LowPower displays
Andreas Osthoff, 2019-06-27 (Update: 2019-07-30)
Andreas Osthoff
Andreas Osthoff - Senior Editor Business
I grew up with computers and modern consumer electronics. I am interested in the technology since I had my first computer, a Commodore C64, and started building my own PCs after that. My focus here at Notebookcheck is the business segment including mobile workstations, but I also like to test new mobile devices. It is always a great experience to review and compare new products. My free time is filled with a lot of sports, in the summer mainly on my bike.