There's no universal truth how to read the results ... but an 'idiot's approach' would be as follows':
Say you have 2000 LW/PH.
3:2 screen ration
2000 * 3/2 = 3000 LW/PW
2000x3000 = 6mp local resolution (equivalent pixel density at the center/border or corner).
Now see that in relation to the sensor.
If you got a 6mp sensor that would be superb. If you got a 50mp sensor ... then not so much.
Very simplified (Brandon would kill me for the above)
Say you have 2000 LW/PH.
3:2 screen ration
2000 * 3/2 = 3000 LW/PW
2000x3000 = 6mp local resolution (equivalent pixel density at the center/border or corner).
Now see that in relation to the sensor.
If you got a 6mp sensor that would be superb. If you got a 50mp sensor ... then not so much.
Very simplified (Brandon would kill me for the above)