Abstract: An innovation of containing box, in particular with a transparent upper cover to allow the laid object to be clearly observed and under protection, which is inserted by a transparent board with tenon and mortise structure, inserted to the base; besides providing preservation for the contained object free from dust pollution, it is also easily assembled, with panel structure claiming little space, and providing a clear view from all angles without restriction from frame.

Abstract: A combined display case is composed of a plurality of joints, frames and glass. Each joint has connecting posts or elliptic posts which can be inserted into through holes or elliptic holes of the frames so as to connect with each other. The joints and frames have receiving grooves in which glass can be installed firmly. In addition, the display case can be opened by installing hinges on the glass, and on the bottom of the glass, a door holder can be loosened to slide down into the receiving groove of a frame to latch the glass door. When the door holder is slid out of the receiving groove, the glass door can be opened freely.