In this investigation, a locking mechanism was proposed for electronic products that have battery covers. The exterior design of electronic products has been advanced with diversified materials including polymers and metals. Unlike polymers such as polycarbonate, metals are not easily deformed. Therefore, products with a metallic exterior have an added button to release the battery cover, which limits the quality of the exterior design. In this study, a new design without a release button that included a miniature solenoid inside the product was proposed. The Taguchi method was used to maximize the attraction force of the solenoid while, at the same time, minimizing its dimensions.

In this work, a new design for mobiles proposes a flexible display that can be switched between flat and curved surfaces. After a few unsuccessful attempts, a noble conversion scheme between the two configurations was obtained after application of the TRIZ contradiction analysis. For physical embodiment of flat display, effects of design parameters are investigated experimentally using the Taguchi method and response surface methodology. It is suggested that a finite element model might be useful for future applications after proper experimental validation.