LCD aspect ratio is a certain amount of it?

Users questions: Some people say that LCD is a certain aspect ratio, but I see some of the city in the computer monitor is very long, very high aspect ratio, and some the contrary. Is not the same brand with respect to a ratio? Such as "BenQ BENQ" seems very long.
Experts answer: is not, the early CRT monitor is 4:3; general screen of the liquid Crystal display is 5:4; many widescreen LCD is 16:9 not 16:10. Of course, 2.05:1, and there is no domestic sales. Now, the mainstream Ye Xian is 22 inch. There are three main specifications: 21.5-inch, this must be Yexian 16:9 screen because the small size of the Cheaper in price (there is a resolution of 1080p, this is Taiwan's AU Optronics panel production); 21.6 inches, this is the same as above and 16:9 screen, the high yield and therefore cheap ; 22-inch, 22 inch early Yexian all this, the ratio is 16:1 0, the price is the highest of these specifications.
  • This information provided by the users.Thanks!