Abstract: A display device includes an optical assembly for displaying images, a frame, and an adjustment assembly including a spherical bearing a connecting rod, and a cover. The frame and the optical assembly are arranged at intervals, a first recess is concave in a first direction from the frame, a through hole penetrates the frame and communicates with the first recess; a part of the spherical bearing is received in the first recess and abuts against an inner surface defining the first recess; the connecting rod extends through the through hole, one end of the connecting rod is fixed to the spherical bearing, and the other end is connected to the optical assembly; the cover is arranged on a side of the spherical bearing facing away from the frame and adjustably connected to the frame in the first direction to selectively apply or remove a pressure to the spherical bearing.

Abstract: A heat dissipation device includes a housing assembly, a sliding assembly, and a linkage assembly. The housing assembly includes a receiving cavity and a cooling hole communicating with the receiving cavity. The sliding assembly includes a sliding member and a rack. The sliding member is located in the receiving cavity and slidably connected to a side of the housing assembly with the cooling hole, the rack is fixedly connected to the sliding member. The linkage assembly includes a rotating shaft and a gear. The rotating shaft and the gear are located on the same side of the sliding member, the rotating shaft is fixed on the housing assembly and extends through the gear, the gear is rotatably sleeved on the rotating shaft and is engaged with the rack to drive the sliding member to slide, thereby adjusting an area of the cooling hole blocked by the sliding member.

Abstract: A wearable electronic device including a base, a body, two linking assemblies, and a wearable element is provided. The base has a carrier and two pivoting portions located at two opposite sides of the carrier, wherein each of the pivoting portions has two first contact points disposed opposite to each other and two second contact points disposed opposite to each other. The body is disposed on the carrier. The wearable element has two opposite end portions, wherein each of the linking assemblies passes through the corresponding end portion and each of the end portions of the wearable element is coupled to the two first contact points of the corresponding pivoting portion through the corresponding linking assembly. When the base is subjected to an external force, at least one of the linking assemblies moves from the two first contact points to the two second contact points of the corresponding pivoting portion.

Abstract: A wearable electronic device including a base, a body, two linking assemblies, and a wearable element is provided. The base has a carrier and two pivoting portions located at two opposite sides of the carrier, wherein each of the pivoting portions has two first contact points disposed opposite to each other and two second contact points disposed opposite to each other. The body is disposed on the carrier. The wearable element has two opposite end portions, wherein each of the linking assemblies passes through the corresponding end portion and each of the end portions of the wearable element is coupled to the two first contact points of the corresponding pivoting portion through the corresponding linking assembly. When the base is subjected to an external force, at least one of the linking assemblies moves from the two first contact points to the two second contact points of the corresponding pivoting portion.