| 摘要 |
<p>The present disclosure includes a case frame and a rectangular key button installed to be partly exposed to the case frame. The key button includes an upper side, a lateral side having a constant height along the edge of the upper side, a pair of first processing surfaces which are formed to have a constant slope in a position facing the length direction of the key button among the boundary part of the upper side and the lateral side, and a pair of second processing surfaces which are formed to have a constant slope in a position facing the width direction of the boundary part of the lateral side and the upper side. The shorter distance between the upper side and the lateral side of the first processing surface is longer than that of the second processing surface, thereby excluding the sharp part of the key button which protrudes from an electronic device without additional processes and providing superior aesthetic and soft touch to a user.</p> |
