Patent ID: 8075145

Claim:
A display screen shade for a mobile device, the display screen shade comprising: a bracket assembly configured for removable attachment to the mobile device; an electrically-switchable light valve for selecting covering a display screen of the mobile device; and a hinge attached to the bracket assembly and the light value, and configured to permit movement of the light valve between a first position and second position when the bracket assembly is attached to the mobile device, wherein in the first position the light valve substantially covers the display screen, and wherein in the second position the light valve is positioned further from the display screen than in the first position; and wherein the light valve is configured to function in a high optical transmission mode and a low optical transmission mode, wherein the light valve is substantially light-transmissive in the high optical transmission mode when the light valve is positioned in the first position, and wherein the light valve is substantially opaque in the low optical transmission mode when the light valve is positioned in the second position.