Abstract: A hydraulic excavator includes a plurality of cameras that are attached to an upper swing structure and photograph images of surroundings, a controller configured to detect an obstacle present around the upper swing structure on the basis of the camera images, and a speaker that makes a notification that the obstacle is detected when the controller detects the obstacle. When a lock lever is at a lock release position and control levers are maintained in a non-operating state from a time of a start of the controller, the controller permits the notification by the speaker. When the lock lever is at the lock release position and the control levers are changed from an operating state to a non-operating state, the controller permits the notification by the speaker when the non-operating state is continued for a predetermined time or more.

Abstract: Provided is a work machine with a display device capable of reducing the usage of the capacity of a memory without increasing the cost while realizing display using image data in which the sharpness when being displayed is ensured. A hydraulic excavator 1 comprises: a monitor 4 for displaying a plurality of work mode screens 401 used during work and a plurality of service mode screens 402 used during maintenance; and a controller 6 for controlling display of the monitor 4, wherein the controller 6 stores first image data to be displayed on the plurality of work mode screens 401 and second image data to be displayed on the plurality of service mode screens 402, and the second image data includes specific image data X1 having a quality set to be different from a quality of the first image data.

Abstract: A hydraulic excavator includes a plurality of cameras that are attached to an upper swing structure and photograph images of surroundings, a controller configured to detect an obstacle present around the upper swing structure on the basis of the camera images, and a speaker that makes a notification that the obstacle is detected when the controller detects the obstacle. When a lock lever is at a lock release position and control levers are maintained in a non-operating state from a time of a start of the controller, the controller permits the notification by the speaker. When the lock lever is at the lock release position and the control levers are changed from an operating state to a non-operating state, the controller permits the notification by the speaker when the non-operating state is continued for a predetermined time or more.