Abstract: A notebook having a display apparatus with a modularized retaining device has a main body and a display apparatus. The display apparatus has a retaining device and a display panel. The retaining device has a frame, a pivot assembly, and a latching assembly. The pivot assembly has an end assembled to the frame and another end assembled to the main body. The display panel and the latching assembly are assembled on the frame. Thereby, the assembly and disassembly of the display apparatus are much easier.

Abstract: A notebook suitable for display panels of different sizes has a main body and a display apparatus. The display apparatus includes a supporting unit, a holding assembly, and a display panel. The supporting unit is pivotly connected with the main body. The supporting unit has a receiving space formed therein and a first fastening structure. The holding assembly is assembled on the first fastening structure to decrease the receiving space. The holding assembly has a second fastening structure. The display panel is assembled on the second fastening structure and disposed in the receiving space. Thereby, the first fastening structure of the supporting unit can be assembled with a larger display panel or the holding assembly, and the second fastening structure of the holding assembly can be assembled with a smaller display panel.

Abstract: A notebook having a display apparatus with changeable shells has a main body and a display apparatus. The display apparatus has a display module and shells. The display module is pivotly connected with the main body. The display module has a rear face and a front face opposite the rear face. The shells have an outer shell and an inner shell. The outer shell is assembled on the rear face of the display module, and the inner shell is assembled on the front face of the display module. Thereby, the shells of the display apparatus are easily assembled or disassembled, and the exterior of the notebook is more diverse.

Abstract: An automatic homing rotary hinge, which includes a pivotal rod, a spring slipped onto the pivotal rod, an assembly board, and a friction portion. The friction portion has a spacer, a baffle, a push gasket, and a skidproof gasket, which are assembled on the pivotal rod in order. Static balance is achieved between a torsion of the spring, the weight of an object and an elastic pressing force and a friction force of the friction portion to arbitrarily position the included angle between two objects. The spring is used to restore the original included angle between the two objects.