Work vehicle and display control method for work vehicle

1. A work vehicle comprising:

a touch-panel display to display at least one first touch button, at least one first function displayed in the at least one first touch button to which the at least one first function is assigned, and work information including a state of work which the work vehicle performs;

at least one first physical button which is provided outside the touch-panel display and to which the at least one first function is assigned; and

circuitry configured to change the at least one first function assigned to the at least one first touch button and the at least one first physical button in accordance with the work information,

wherein a first identical first function of the at least one first function is assigned to both a first touch button of the at least one first touch button and a first physical button of the at least one first physical button that is positionally aligned with the first touch button,

wherein, when the circuitry changes the at least one first function assigned to the first touch button and the first physical button, a second identical first function of the at least one first function is assigned to both the first touch button and the first physical button that is positionally aligned with the first touch button,

wherein the at least one first touch button includes a plurality of first touch buttons arranged in a first line, the plurality of first touch buttons including the first touch button and a second touch button,

wherein the at least one first physical button includes a plurality of first physical buttons arranged in a second line parallel to the first line, the plurality of second physical buttons including the first physical button and a second physical button,

wherein the first touch button is aligned with the first physical button in a direction perpendicular the first line,

wherein the second touch button is aligned with the second physical button in the direction perpendicular the first line,

wherein a third identical first function of the at least one first function is assigned to both the second touch button and the second physical button, and

wherein, when the circuitry changes the at least one first function assigned to the second touch button and the second physical button, a fourth identical first function of the at least one first function is assigned to both the second touch button and the second physical button.

2. The work vehicle according to claim 1 ,

wherein the circuitry is configured to switch a display state of the plurality of first touch buttons between a first display state and a second display state,

wherein the circuitry is configured to enable operations of both the plurality of first touch buttons and the plurality of first physical buttons when the display state of the plurality of first touch buttons is switched to the first display state, and

wherein the circuitry is configured to disable operations of both the plurality of first touch buttons and the plurality of first physical buttons when the display state of the plurality of first touch buttons is switched to the second display state.

3. The work vehicle according to claim 2 , wherein the plurality of first touch buttons is not displayed on the touch-panel display when the display state of the plurality of first touch buttons is switched to the second display state.

4. The work vehicle according to claim 1 ,

wherein the at least one first function includes a plurality of first functions which are different from each other, and

wherein each of the plurality of first touch buttons corresponding to each of the plurality of first physical buttons in a sequential order, each of the plurality of first functions being assigned to a touch button of the plurality of first touch buttons and a physical button of the plurality of first physical buttons, the touch button corresponding to the physical button.

5. The work vehicle according to claim 1 , further comprising:

a plurality of second physical buttons provided adjacently to the plurality of first physical buttons outside the touch-panel display,

wherein the touch-panel display is to display a plurality of second touch buttons which are provided adjacently to the plurality of first touch buttons, a plurality of second functions being assigned to the plurality of second physical buttons and the plurality of second touch buttons corresponding to the plurality of second physical buttons, and

wherein the plurality of second functions are unchanged regardless of the work information displayed on the touch-panel display.

6. The work vehicle according to claim 4 , further comprising:

a plurality of second physical buttons arranged in a third line substantially parallel to and adjacent to the second line,

wherein the touch-panel display is to display a plurality of second touch buttons arranged in a fourth line which is substantially parallel to and adjacent to the first line, each of the plurality of second touch buttons corresponding to each of the plurality of second physical buttons in a sequential order,

wherein a plurality of second functions, which are different from each other, are assigned to the plurality of second touch buttons and the plurality of second physical buttons such that each of the plurality of second functions is assigned to a touch button of the plurality of second touch buttons and a physical button of the plurality of second physical buttons, the touch button corresponding to the physical button being arranged in the side direction, and

wherein the plurality of second functions are unchanged regardless of the work information displayed on the touch-panel display.

7. The work vehicle according to claim 5 ,

wherein the circuitry is configured to switch a display state of the plurality of second touch buttons between a first display state and a second display state,

wherein the circuitry is configured to enable operations of both the plurality of second touch buttons and the plurality of second physical buttons when the display state of the plurality of second touch buttons is switched to the first display state, and

wherein the circuitry is configured to disable operations of both the plurality of second touch buttons and the plurality of second physical buttons when the display state of the plurality of second touch buttons is switched to the second display state.

8. The work vehicle according to claim 6 ,

wherein the circuitry is configured to switch each of display states of the plurality of second touch buttons between a first display state and a second display state,

wherein the circuitry is configured to enable operations of both each of the plurality of second touch buttons and each of the plurality of second physical buttons when the display state of each of the plurality of second touch buttons is switched to the first display state, and

when the circuitry is configured to disable operations of both each of the plurality of second touch buttons and each of the plurality of second physical buttons when the display state of each of the plurality of second touch buttons is switched to the second display state.

9. The work vehicle according to claim 5 , wherein a touch-button display area where the plurality of first touch buttons and the plurality of second touch buttons are displayed is adjacent to a physical-button placement area where the plurality of first physical buttons and the plurality of second physical buttons are provided.

10. The work vehicle according to claim 6 , wherein a touch-button display area where the plurality of first touch buttons and the plurality of second touch buttons are displayed is adjacent to a physical-button placement area where the plurality of first physical buttons and the plurality of second physical buttons are provided.

11. A display control method for a work vehicle, comprising:

displaying at least one first touch button, at least one first function, and work information on a touch-panel display, the at least one first function being displayed in the at least one first touch button to which the at least one first function is assigned, the work information including a state of work which the work vehicle performs; and

changing in accordance with the work information, the at least one first function assigned to the at least one first touch button and at least one first physical button which is provided outside the touch-panel display,

wherein a first identical first function of the at least one first function is assigned to both a first touch button of the at least one first touch button and a first physical button of the at least one first physical button that is positionally aligned with the first touch button,

wherein, when the at least one first function assigned to the first touch button and the first physical button is changed, a second identical first function of the at least one first function is assigned to both the first touch button and the first physical button that is positionally aligned with the first touch button,

wherein the at least one first touch button includes a plurality of first touch buttons arranged in a first line, the plurality of first touch buttons including the first touch button and a second touch button,

wherein the at least one first physical button includes a plurality of first physical buttons arranged in a second line parallel to the first line, the plurality of second physical buttons including the first physical button and a second physical button,

wherein the first touch button is aligned with the first physical button in a direction perpendicular the first line,

wherein the second touch button is aligned with the second physical button in the direction perpendicular the first line,

wherein a third identical first function of the at least one first function is assigned to both the second touch button and the second physical button, and

wherein, when the at least one first function assigned to the second touch button and the second physical button is changed, a fourth identical first function of the at least one first function is assigned to both the second touch button and the second physical button.

12. A work vehicle comprising:

a touch-panel display to display at least one first touch button, at least one first function displayed in the at least one first touch button to which the at least one first function is assigned, and work information including a state of work which the work vehicle performs;

at least one first physical button which is provided outside the touch-panel display and to which the at least one first function is assigned; and

function changing means for changing the at least one first function assigned to the at least one first touch button and the at least one first physical button in accordance with the work information,

wherein a first identical first function of the at least one first function is assigned to both a first touch button of the at least one first touch button and a first physical button of the at least one first physical button that is positionally aligned with the first touch button,

wherein, when the function changing means changes the at least one first function assigned to the first touch button and the first physical button, a second identical first function of the at least one first function is assigned to both the first touch button and the first physical button that is positionally aligned with the first touch button,

wherein the at least one first touch button includes a plurality of first touch buttons arranged in a first line, the plurality of first touch buttons including the first touch button and a second touch button,

wherein the at least one first physical button includes a plurality of first physical buttons arranged in a second line parallel to the first line, the plurality of second physical buttons including the first physical button and a second physical button,

wherein the first touch button is aligned with the first physical button in a direction perpendicular the first line,

wherein the second touch button is aligned with the second physical button in the direction perpendicular the first line,

wherein a third identical first function of the at least one first function is assigned to both the second touch button and the second physical button, and

wherein, when the function changing means changes the at least one first function assigned to the second touch button and the second physical button, a fourth identical first function of the at least one first function is assigned to both the second touch button and the second physical button.