Button, display device, shower control device, and control method thereof

A display device, for displaying a first parameter that is displayed with a certain digits and a second parameter that is displayed by a progress bar, comprising digit display segments forming a shape of “” for displaying the digits, wherein the display segments forming the progress bar comprise a part of the digit display segments and additional display segments arranged laterally or longitudinally within and/or outside the digit display segments, and the display segments forming the progress bar are arranged laterally or longitudinally,

• wherein the digit display segments forming the shape of “” comprises seven display segments, and the seven display segments are a first display segment (a), a second display segment (g), and a third display segment (d), which are laterally arranged from top to bottom, and a fourth display segment (f), a fifth display segment (b), a sixth display segment (e), and a seventh display segment (c), which are longitudinally arranged, respectively, wherein the fourth display segment (f), the fifth display segment (b), the sixth display segment (e), and the seventh display segment (c) are arranged at upper left, upper right, lower left, and lower right of the second display segment (g), respectively,
• an eighth display segment (h, j) is arranged between the first and the second display segments (a) and (g), a ninth display segment (i, k) is arranged between the second and the third display segments (g) and (d), and the progress bars comprise the first, the eighth, the second, the ninth, and the third display segments (a), (h, j), (g), (i, k) and (d),
• the display device comprises two groups of the seven display segments, each group of the two groups forming the shape of “”, the two groups are arranged laterally in parallel, a first group of the two groups comprises corresponding seven display segments:
• a tenth display segment (a′), an eleventh display segment (g′), a twelfth display segment (d′), a thirteenth display segment (f′), a fourteenth display segment (b′), a fifteenth display segment (e′) and a sixteenth display segment (c′), and a second group of the two groups comprises the first display segment (a), the second display segment (g), the third display segment (d), the fourth display segment (f), the fifth display segment (b), the sixth display segment (e) and the seventh display segment (c),
• a seventeenth display segment (h′, j′) is arranged between the tenth and the eleventh display segments (a′) and (g′), an eighteenth display segment (i′, k′) is arranged between the eleventh and the twelfth display segments (g′) and (d′), a progress bar of the first group of the two groups comprise display segments (a′), (h′, j′), (g′), (i′, k′) and (d′) of the first group, and a progress bar of the second group of the two groups comprises display segments (a), (h, j), (g), (i, k) and (d) of the second group.