| 摘要 |
A cover for a screen of a portable computing device having a physical button recessed into the screen is provided. The cover comprises a transparent member, a protrusion, and a tactile feature. The transparent member has a first surface positioned adjacent the screen of the device and an opposing second surface. The protrusion is adjacent the first surface of the transparent member in a position such that the protrusion engages the physical button. The protrusion has a shape such that it is in registry with the physical button. The tactile feature is formed in the second surface of the transparent member opposite the protrusion. The transparent member can be formed from a material which limits the viewing angle of the screen of the portable computing device and displays images such as company logos, slogans, advertising, or photographs to users viewing the screen at angles greater than the viewing angle. |
