At the beginning, the idea was to show a product in two forms. The rotating structure, which is rare in the market but has mature technology, was tried. The upper and lower parts of the conventional cylinder projector were recombined into an inverted "L" form, so that the top lens was facing the front. The deformed structure gave the product novel senses and selling points. The surface of the product is made into a multi-faceted shape, which is suitable for lying flat and projecting the product. The flat surface can also better print logo. The upper and lower parts of the material are distinguished, and the collision between the mirror surface and the matte texture enhances the advanced feeling of the product. The bottom tried to make a knob telescopic structure, which can adjust a certain height in the inverted "L" form. Furthermore, through the form of lying flat, the book is placed under the product, which can also meet the constraints of most environments.