Abstract: A laptop keyboard structure includes a keycap assembly and a key shaft assembly. The keycap assembly includes a keycap positioning plate, a plurality of stroke limiting structures and a plurality of keycaps. The stroke limiting structures are respectively disposed on the keycap positioning plate. The keycaps are respectively connected to the stroke limiting structure. The key shaft assembly, detachably assembled to one side of the keycap assembly, includes a circuit substrate and a plurality of key switches. The key switches are disposed on the circuit substrate and used to abut the keycap. A manufacturing method of the laptop keyboard structure is mainly to prepare the keycap assembly first, then to prepare the key shaft assembly, and finally to mount detachably the key shaft assembly to the keycap assembly by having the key switches respectively to penetrate the switch and further abut the keycap.

Abstract: A connection structure includes a workpiece, and a coating layer disposed above the workpiece. A groove is formed on a surface of the coating layer. The connection structure further includes an object installed inside the groove and adhered to the workpiece.

Abstract: A case substrate including a base material and a coating layer coated on the base material. The coating layer has a hollow-out opening corresponding to the position of an infrared receiver, such that infrared rays can pass through the base material from the hollow-out opening and thus being received by the receiver.

Abstract: A connection structure includes a workpiece, and a coating layer disposed above the workpiece. A groove is formed on a surface of the coating layer. The connection structure further includes an object installed inside the groove and adhered to the workpiece.