An HMD includes a display unit that transmits an outside scene, a line-of-sight detection unit that detects a line-of-sight direction of a user, a determination unit that calculates a risk level of the first target object, and determines an attention level for the first target object by correcting the risk level of the first target object based on the line-of-sight direction, and calculates a risk level of the second target object and determines an attention level for the second target object by correcting the risk level of the second target object based on the line-of-sight direction, and a display control unit that a display unit to display a first image related to the first target object when the attention level for the first target object is higher than the risk level of the second target object.