Original Post
Written by
Edited June 8, 2021
at 02:10 PM
by
27" Dell S2721QS 4K UHD IPS Monitor w/ Tilt, Pivot & Height Adjustment - $ 279 with Dell Email Signup at
https://www.dell.com/preferences/signup/ [dell.com]
Get a unique 10% off code with signup and apply to the order to get the price down to $ 279.
https://www.dell.com/en-us/member...ccessories
Tech Specs
Device Type
White LED edgelight system
Panel Type
In-Plane switching Technology
Aspect Ratio
16:9
Native Resolution
3840 x 2160 @ 60 Hz
Pixel Pitch
0.1554 x 0.1554 mm
Brightness
350 cd/m²
Contrast Ratio
1,300:1 (typ)
Response Time
Normal: 8ms (gtg)
Fast: 5ms (gtg)
Extreme: 4ms (gtg)
Color Support
1.07 billion colors
Input Connectors
HDMI 2.0
DP1.2
Display Position Adjustments
Swivel (Left and Right) (-30° to 30°)
Tilt -5° / 21°
Screen Coating
Anti-glare with 3H hardness
Dimensions (WxDxH) - with stand
24.08 inches x 6.88 inches x 15.75 inches
Compliant Standards
Energy Star Compliance (ES8.0)
TCO-certified display
Product Description
Dell 27 4K UHD Monitor - S2721QS
Diagonal Size
27 inches
Features
N/A
Weight
10.36 lbs
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https://deals.dell.com/en-us/category/monitors
and say additional 10% off with email coupon on any of them?
Or is this a FP a day strategy?
SMH.
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Your post made me do some more research into this and I realized it's hard to find anything comparable to the retina display until 5K monitors are more affordable down the road. I was going to spend $525 on the LG 32UN880 but just now found out that it has 139PPI so about the same as the Dell 32 inch except the USB-C convenience + Monitor Stand adds another couple hundred to the price
To understand, let us say an app draws a thin line. The thinnest line possible is mapped to 1 pixel width in 72ppi monitor, 2 pixel widths in a 144ppi monitor. Since the pixels are twice as dense in the latter, both would reproduce the same size looking thin line. If the line isn't horizontal or vertical, there would be pixelation which would look bad in the 72ppi monitor and better on a 144ppi monitor. This is how higher resolution monitor looks sharper.
But what if the monitor was 180ppi. The thin line now must be mapped to 2.5 pixels but you cannot light up 2.5 pixels. So the OS uses anti-aliasing with softer colors at the edges over 3 pixels so it visually looks like it is using 2.5 pixels. The anti-aliasing would make it less sharp and so a 144dpi may actually look better. The higher the ppi, less of this anti-aliasing effect which is how Apple gets away with anti-aliasing in their high ppi retina displays.
So the best approach is to get as high a PPI as is available or you can afford but prefer one that is closer to an integral or half integral over some odd multiple between monitors in a similar ppi range which might suggest a slightly lower ppi one in some cases. Alternatively, it means a small bump up in ppi may in some cases make it worse than better.
This would explain why there are some complaints of things not being sharp with some monitors when used with a Mac even if they are high resolution monitors.
You need to get into the 200+ ppi range for the above to become a non issue.