LCD Monitors

How to buy a monitor in 2017 - CNET
At the moment we're in a lull before products incorporating new standards are ready,
 such as HDMI 2.1 and DisplayPort 1.4, so if you're OK being behind the curve
  until you can afford something new, then don't worry.
  
You can certainly drive a TV from your computer, but TVs are meant to be viewed
 from a distance, while computer displays are designed for closer work.
 The refresh rate on monitors is faster so you don't see a delay as you drag
 your mouse across the screen.

How to Find a Great Computer Monitor for Business or Pleasure

Gaming monitor
When it comes to gaming, most players feel that more pixels are better.
 It’s important to have sufficient pixel density to make images look smooth and 
 realistic. But obviously the more dots you have, the more graphics horsepower you’ll need.
The current (2017) sweet spot seems to be QHD (2160x1440) resolution.
 At sizes up to 32 inches you’ll see good density and a detailed image.
 
Frame syncing or adaptive sync. Probably better known via brand names like Nvidia G-Sync and AMD FreeSync.
 Frame syncing technology varies the refresh rate to make a smoother image.
 The details are beyond the scope of this page.
 
Common resolutions


Standard
 
 
Resolution
 
Aspect ratio

Full HD (FHD) 
 
1,920x1,080
 
16:9

Wide quad HD (WQHD) 
 
2,560x1440
 
16:9

Wide quad XGA 
 
2,560x1,600
 
16:10

Ultra wide quad HD 
 
3,440x1,440
 
21:9

Ultra HD 4K (UHD) 
 
3,840x2,160
 
16:9

Digital Cinema Initiatives 4K (DCI 4K) 
 
4,096x2,160
 
Between 16:8 and 16:9

5K 
 
5,120x2,880
 
16:9

8K UHD 
 
7,680x4,320
 
16:9


See a page ruler here.

2017
PC Magazine
The Best Computer Monitors of 2017 | PCMag.com
Model	Price	size	Resolution	Score
ViewSonic VP2468	$250	24	EC 4
NEC MultiSync EX241UN-BK	$396	24	EC 4.5
HP Pavilion 32 Display	$370	32	EC 4
Dell UltraSharp 24 InfinityEdge Monitor U2417H	$274	24	EC 4
Dell UltraSharp 34 Curved Monitor U3417W	$770	34	3440 x 1440	EC 4.5
Asus PA328Q	$910	32	3840 x 2160	EC 4.5


Best Computer Monitor Reviews – Consumer Reports
DellUltraSharp U2713H	$750	87
Asus PA249Q	$500	2483
Philips 288P6LJEB	$450	28	81
Asus PQ321Q 	$1,400	31.5	80
AcerB286HK	$500	28	77

What I have: Samsung U28E510  UHD $299 Costco  4/2017
4K 3840 x 2160, 3008 x 1692, 2560 x1440
I use 3008 x 1692 which is more readable with my old eyes.

Late 2015 iMac Core i5 27-inch Retna 5K
5120 x 2889
	
2008
Resolution/Size
15" 1024x768 (EVGA) .78Mp $300
17-18" 1280x1024 (SXGA) 1.3Mp $500-800
19" 1280x1024 (SXGA) 1.3Mp   $650-900
20" 1600x1024	WSXGA 
20-21" 1600x1200 (UXGA) 1.9Mp $950-1,200
Apple 23" 1920x1200 $2,000
Apple 30" 4.2 Mp 2560x1600 $3,299
23" 2048x1152  QWXGA	Samsung $280
24" 1920x1200 WUXGA	 $450-500
30" 2560x1600 WQXGA	

Terms:
DVI - Digital Video Interface (Mac Powerbook)
DFP - Digital Flat Panel
DP - Display Port Cable
HDMI - High Definition Multimedia Interface
ADC - Apple Display Connector (ADC cable carries power, USB and digital graphics)
See HDMI vs. DisplayPort: Which display interface reigns supreme?
A single DisplayPort interface can support up to four monitors at 1920-by-1200-pixel
 resolution each, or two monitors at 2560-by-1600-pixel resolution,
DisplayPort supports  multiple displays and its ability to connect to nearly any other
 type of monitor with an inexpensive adapter give it greater flexibility than HDMI possesses.