1. Name of this design product: back cover of
mobile phone. 2. Purpose of this design product: The overall purpose of this design product is to provide network communications, voice calls,
transaction processing (data storage, recording, image browsing), etc.; the local purpose is to decorate the
mobile phone and protect the internal structure of the
mobile phone. 3. The key design point of this design product lies in the combination of shape and pattern. 4. The picture or photo that best illustrates the key points of the design: Design 1 Stereoscopic Drawing 1. 5. Designate Design 1 as the base design. 6. Other matters requiring explanation: The dotted lines in the figures indicate parts that do not require protection.