Head-mounted display device

A head mounted display device, comprising:

• a display part;
• a headrest module, comprises:
• a base, pivotally connected to the display part;
• a first driver, connected between the base and the display part, is used to drive the base to rotate relative to the display part;
• a first soft pad, disposed on the base, is used to contact a forehead of a user;
• a first sensor, disposed on the first soft pad, is used to sense the pressure exerted by the forehead on the first soft pad;
• a controller, electrically connected to the first sensor and the first driver, is used to control the first driver to drive the base or stop driving the base according to the sensing result of the first sensor;
• two soft pad bases, removably disposed on the base;
• a second driver, connected between the base and the soft pad bases, is used to drive the soft pad bases to move relative to the base;
• two second soft pads, disposed on the soft pad bases and located on both sides of the first soft pad, are used to contact the forehead;
• and
• two second sensors, disposed on the second soft pads, are used to sense the pressure exerted by the forehead on the second soft pads, wherein the controller is further electrically connected to the second sensors and the second drivers and is used to control the second drivers to drive the soft pad bases or stop driving the soft pad bases according to the sensing result of the second sensors, so as to change the angle between the second soft pads and the first soft pad.