Abstract: An external display module is provided, which is adapted to be detachably connected to an electronic device. The external display module includes a module base and a first screen unit. The module base includes a first base side, two first tracks and at least one first slot. The first screen unit is rotatably connected to the module base, wherein the first screen unit includes a first screen, a first shaft, at least one first guiding member and two first blocks, the first shaft is disposed on the edge of the first screen unit, the first guiding member is affixed to the first shaft and is rotated with the first shaft, the first block is connected to the first shaft, the first guiding member is inserted into the first slot and is guided by the first slot, and the first block is adapted to slide in the first track.

Abstract: A notebook computer is provided. The notebook computer includes a device body, a cover and a media unit. The device body includes a first body housing and a second body housing, wherein the second body housing pivots on the first body housing. The cover pivots on the first body housing and is slidably connected to the second body housing. When the cover is rotated from a folded state to an unfolded state relative to the device body, the second body housing is pushed to rotate from the first housing orientation to the second housing orientation relative to the first body housing. The media unit pivots on the first body housing and is slidably connected to the second body housing.

Abstract: A sound suppressing structure is provided. The sound suppressing structure applied to a cathode-ray tube (CRT) having a frame, an inner shield, and at least one fixing element for fixing the frame and the inner shield, includes a rib portion formed on one of the frame and the inner shield, wherein the rib portion contacts with the other one of the frame and the inner shield for reducing a contacting area between the frame and the inner shield, so as to suppress a noise produced by vibrations of the frame and the inner shield.