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Explains how aspects of human visual perception dictate the ideal monitor/HDTV resolution and viewing distance. Includes the math for computing important parameters as well as a table of common display sizes and optimum viewing distance.
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If this dip becomes too shallow, the two points
cannot be distinguished.
*More specifically, each point object is represented by a ‘Point Spread Function.’
*
sθ
r
Line of pixels
*Note: The horizontal screen width, not its diagonal dimension, is used.
53.62"61.52"30.16"
Device Pixel Size Pixel Columns Pixel Rows Viewing Distance Ideal Width Ideal Height Ideal Diagonal dpi
HDTV 0.5 1,920 1,080 192" 53.6" 30.2" 61.5" 36
HDTV 0.7 1,920 1,080 192" 75.1" 42.2" 86.1" 26
HDTV 1.0 1,920 1,080 192" 107.2" 60.3" 123.0" 18
4K HDTV 0.5 3,840 2,160 192" 107.2" 60.3" 123.0" 36
4K HDTV 0.7 3,840 2,160 192" 150.1" 84.4" 172.2" 26
4K HDTV 1.0 3,840 2,160 192" 214.5" 120.6" 246.1" 18
8K HDTV 0.5 7,680 4,320 192" 214.5" 120.6" 246.1" 36
8K HDTV 0.7 7,680 4,320 192" 300.3" 168.9" 344.5" 26
8K HDTV 1.0 7,680 4,320 192" 428.9" 241.3" 492.1" 18
Tablet 0.5 1,024 768 14" 2.1" 1.6" 2.6" 491
Tablet 0.7 1,024 768 14" 2.9" 2.2" 3.6" 351
Tablet 1.0 1,024 768 14" 4.2" 3.1" 5.2" 246
Tablet 0.5 1,280 800 14" 2.6" 1.6" 3.1" 491
Tablet 0.7 1,280 800 14" 3.6" 2.3" 4.3" 351
Tablet 1.0 1,280 800 14" 5.2" 3.3" 6.1" 246
Tablet 0.5 2,048 1,536 14" 4.2" 3.1" 5.2" 491
Tablet 0.7 2,048 1,536 14" 5.8" 4.4" 7.3" 351
Tablet 1.0 2,048 1,536 14" 8.3" 6.3" 10.4" 246
Tablet 0.5 2,560 1,600 14" 5.2" 3.3" 6.1" 491
Tablet 0.7 2,560 1,600 14" 7.3" 4.6" 8.6" 351
Tablet 1.0 2,560 1,600 14" 10.4" 6.5" 12.3" 246
