Quote:
Originally Posted by cellaris
Only direct vision can give an idea of the differences.
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No, decent still photos taken at the same settings and conditions viewed on a decent monitor or laptop will give a very good idea of the differences.
Also there is more than personal preferences:
1) a screen with little glare/reflectance. This can be measured and reflections will give headaches.
2) Correctly adjusted brightness (active screens), or sufficient inherent brightness contrast for the ambient light (eink, mirasol and other bistable screens). This can be measured.
3) If colour or grey scale is needed, that it's sufficient for the application. Suitably prepared 1930s style comic can work on a colour screen with black, dark grey, light grey, white and two "brightnesses" each of six colours (R, G, B, C, Y, M) ideally with enough resolution for dithering. Some of us remember EGA. Some applications will be fine with about 30,000 to 60,000. Some need full colour, especially if the resolution is too low for dithering. Colour gamut can be measured or calculated.
4) Reading text has a minimum ppi for number of shades (fonts can be hinted and aliased also colour screens have sub pixel addressing.
a) On/off pixels (fixed dot size laser): 600 to 1200 dpi
b) eink (black, 14 greys & white): 220 to 300 ppi, thus a colour eink needs about 440 ppi if it's using a 2 x 2 cell and 660 x 220 ppi (x & y) for stripes.
c) 256 levels or more: About 200 ppi can look like 600 to 1200 laser or like 300 dpi eink due to better aliasing, even without subpixel addressing.
Resolution and colour cell layout can be measured.
Note colour LCD use mono panels either 3 x 1, or 2 x 2 the colour resolution. Some OLED and LCD use R G B Y or R G B Y and white for greater brightness. The colour rendition may be poorer.
5) Reponse time is how fast a pixel changes. A low as 0.3ms for LCD. OLED is limited by the phosphor. Eink is slow, AECP (Gallery is about 30x slower). Can be measured.
6) Refresh rate / Frame rate. About 120 fps is common now for OLED, LED, QLED, LCD and DLP. Higher is possible and three chip DLP can be 3 to 6 times faster. Eink about 2fps (full quality) to 10 fps (no shades). AECP (gallery 3) is 1.5 s per frame.