Abstract: A wireless position tracking device, a display system, and a wearable device are provided. The wireless position tracking device includes a rigid body, point light sources, a motion sensor, and a wireless transmission module. The rigid body has an inner concave surface, a head, a connecting portion, and a tail. The connecting portion connects the head and tail. The point light sources are fixed to positions outside the inner concave surface. The motion sensor locates in the rigid body for sensing a motion thereof and generating motion information. The wireless transmission module locates in the rigid body and electrically connects the motion sensor for wirelessly transmitting the motion information to the head-mounted device. An image capturing module of the head-mounted device captures a pattern formed by the point light sources. The head-mounted device calculates a relative position of the wireless position tracking device according to the pattern and motion information.

Abstract: A wearable device and a head strap module are provided. The wearable device includes a host and a head strap module. Two opposite sides of the host are provided with a first bracket and a second bracket. The first bracket has a first end. The second bracket has a second end. The head strap module includes a first belt, a second belt, and an adjustment mechanism. The first belt has a third end. The second belt has a fourth end. The third end and the fourth end are detachably assembled to the first end and the second end respectively. The adjustment mechanism is arranged at the overlapping position of the first belt and the second belt for adjusting the overlapping length of the first belt and the second belt.

Abstract: A wearable device includes a host, a first belt, a second belt, a circuit board, a cable, and an adjustment mechanism. The first belt, one end of which is connected to a first side of the host, has a cable holding part. One end of the second belt is connected to a second side of the host. The circuit board is disposed at an overlap of the first belt and the second belt. A first end and a second end opposite to each other of the cable are connected to the circuit board and the first side respectively, and a holding section of the cable is fixed to the cable holding part. The adjusting mechanism is disposed at an overlap of the first belt and the second belt to adjust an overlapping length of the first belt and the second belt.

Abstract: A wireless position tracking device, a display system, and a wearable device are provided. The wireless position tracking device includes a rigid body, point light sources, a motion sensor, and a wireless transmission module. The rigid body has an inner concave surface, a head, a connecting portion, and a tail. The connecting portion connects the head and tail. The point light sources are fixed to positions outside the inner concave surface. The motion sensor locates in the rigid body for sensing a motion thereof and generating motion information. The wireless transmission module locates in the rigid body and electrically connects the motion sensor for wirelessly transmitting the motion information to the head-mounted device. An image capturing module of the head-mounted device captures a pattern formed by the point light sources. The head-mounted device calculates a relative position of the wireless position tracking device according to the pattern and motion information.

Abstract: A hand controller assembly including a hand controller, a slide rail and a strap. The hand controller has a top and a bottom opposite to each other. The slide rail is disposed at the top and has an entrance and a limiting portion adjacent to the entrance. The strap is detachably assembled to the slide rail and the bottom. The strap includes a body and a metal member. The metal member is assembled to one end of the body. The metal member has a sliding block. The sliding block is adapted to be detachably assembled to the slide rail via the entrance along a direction. The sliding block is adapted to move along the limiting portion. The limiting portion restricts the movement of the sliding block along the direction.