Patent ID: 8174489

Claim:
A display device, comprising: a dual-sided display assembly having a first viewable side and a second viewable side; a first ambient light sensor configured to detect ambient light incident on the first viewable side; a second ambient light sensor configured to detect ambient light incident on the second viewable side; a first electrochromic layer formed over the first viewable side; a second electrochromic layer formed over the second viewable side; a power supply, wherein each of the first electrochromic layer and the second electrochromic layer is switchable between a substantially transparent state and a substantially reflective state upon application of a switching voltage from the power supply, the state being selected based on an operational configuration of the display device; and processing logic configured to: determine that the dual-sided display assembly is in a first operational configuration when the ambient light detected by the first ambient light sensor is greater than the ambient light detected by the second ambient light sensor; and determine that the dual-sided display assembly is in a second operational configuration when the ambient light detected by the second ambient light sensor is greater than the ambient light detected by the first ambient light sensor.