What does it mean to produce 5 pieces by TFT-LCD?

However, the TFT-LCD substrate is a 5th generation line, which represents the size of the panel (before cutting, it will be cut to the size used by customers after completion). The size of each generation line is as follows, and it has reached G 10 at present (it has reached G8.5 in China, and Sharp is making G 10).

G 1:400X300

G2:470X370

G3:650X550

G4:880X680

G4.5:920X730

G5: 1300X 1 100

G5.5: 1500X 1300

G6: 1850X 1500

G7.5:2250X 1950

G8:2500X2200

G 10:3 1300X2880

G 1 1:3320X3000