Are you asking if the part number listed on the order sheet is not installed? Highly unlikely if you ordered the UHD IPS panel. On this model, we only shipped the one UHD IPS panel that would utilize 3840x2160. So if you can get 3840x2160, you got the correct LCD panel.
In my opinion, that viewing angle presented in those pictures is way exaggerated. The Owner's Manual says that the minimum viewing angle is 80°. Your pictures look to be about 60°?
The 5510 and 7520 used different panel manufacturer (Compal versus Sharp) so not a good comparison. You should compare the 7520 Sharp UHD IPS panel to another laptop that uses the same panel.
Are those the only four LCD panels offered with the 7520? If so, that seems somewhat troubling, because this is the list of displays offered when configuring:
All but one say that the panel is IPS, and short of the one option that states 300 nits, none of the others actually distinguish themselves from the others aside from if they have a camera or mic.
The screen I have in mine is a non-touch FHD panel, and the part number for that is 391-BDDI, which is listed as a 220 nit IPS display. I was able to find the part number of the LCD associated with that, and it's 20PJK, which I cannot find any technical information on at all.
I took the angled photos to show the extreme levels of color shift that are appearing on the screen. Sure, I won't be viewing the screen at such a sharp angle normally, but I've grown to expect that I'm not going to see color shifts between the top and bottom of the screen just from the laptop sitting on my lap.
If that's just how this quality of IPS screen is, then so be it, but it's frustrating to not receive a quality that I've gotten used to receiving from Dell's own displays.
My only guess is they are using the four panels in multiple builds. You are correct, the listings in our parts tool must be incorrect. I would trust the sales site for the IPS versus TN specifications. I did find this reference internally which shows three 1920x1080 panels, two are IPS and one is TN =
DELL-Chris M
Community Manager
•
56.9K Posts
0
April 27th, 2017 08:00
Are you asking if the part number listed on the order sheet is not installed? Highly unlikely if you ordered the UHD IPS panel. On this model, we only shipped the one UHD IPS panel that would utilize 3840x2160. So if you can get 3840x2160, you got the correct LCD panel.
43N80 LCD, 15.6, UHD 3840x2160, IPS, WLED+RG, Antiglare, EDP1.3, Sharp
C1JFR = V1F6T = 7RDJ4 = 391-BDEI LCD, 15.6, FHD 1920x1080, WLED, Antiglare, EDP1.2, Non-Touch, 220nits, Beijing Opto Electronics
R9P60 = DH5NR = 391-BDIM LCD, 15.6, FHD 1920x1080, WLED, Antiglare, EDP1.3, Non-Touch, 300nits, AU Optronics Corp
MDFT7 = 2TVCH = F7HH2 LCD, 15.6, FHD 1920x1080, WLED, Antiglare, EDP1.3, Touch, LG Display
In my opinion, that viewing angle presented in those pictures is way exaggerated. The Owner's Manual says that the minimum viewing angle is 80°. Your pictures look to be about 60°?
The 5510 and 7520 used different panel manufacturer (Compal versus Sharp) so not a good comparison. You should compare the 7520 Sharp UHD IPS panel to another laptop that uses the same panel.
the_duck_life
2 Posts
0
April 27th, 2017 09:00
Are those the only four LCD panels offered with the 7520? If so, that seems somewhat troubling, because this is the list of displays offered when configuring:
All but one say that the panel is IPS, and short of the one option that states 300 nits, none of the others actually distinguish themselves from the others aside from if they have a camera or mic.
The screen I have in mine is a non-touch FHD panel, and the part number for that is 391-BDDI, which is listed as a 220 nit IPS display. I was able to find the part number of the LCD associated with that, and it's 20PJK, which I cannot find any technical information on at all.
I took the angled photos to show the extreme levels of color shift that are appearing on the screen. Sure, I won't be viewing the screen at such a sharp angle normally, but I've grown to expect that I'm not going to see color shifts between the top and bottom of the screen just from the laptop sitting on my lap.
If that's just how this quality of IPS screen is, then so be it, but it's frustrating to not receive a quality that I've gotten used to receiving from Dell's own displays.
DELL-Chris M
Community Manager
•
56.9K Posts
0
April 29th, 2017 14:00
My only guess is they are using the four panels in multiple builds. You are correct, the listings in our parts tool must be incorrect. I would trust the sales site for the IPS versus TN specifications. I did find this reference internally which shows three 1920x1080 panels, two are IPS and one is TN =