What screen aspects are HD and Full HD?

Question

What screen aspects are HD and Full HD: long or not long? How/what do you calculate? What about tablets? I've seen screen aspect and the list. But they don't say about large and xlarge screens.

Answer 1

small, normal, large and xlarge are screen SIZE

small: QVGA (320×240)

normal: HVGA (480×320)

large: VGA (640×480)

xlarge: larger than HVGA(720x960)

ldpi, mdpi, hdpi, xhdpi, xxhdpi and xxxhdpi are screen density (number of pixles in inch).

LDPI: Low density, ~120 dots per inch

MDPI: Medium density, ~160 dots per inch

HDPI: High density, ~240 dots per inch

XHDPI: eXtra High density, ~320 dots per inch

XXHDPI: eXtra eXtra High density, ~480 dots per inch

XXXHDPI: eXtra eXtra eXtra High density, ~640 dots per inch

For example, you may have a large screen with mdpi resolution.

Handsets are often small or normal 7" and 10" tablets are large.

Read more:

http://en.wikipedia.org/wiki/Pixel_density http://en.wikipedia.org/wiki/Graphics_display_resolution http://en.wikipedia.org/wiki/Display_resolution http://en.wikipedia.org/wiki/List_of_mobile_phones_with_HD_display