Patent ID: 7692671

Claim:
A method for debiasing a display device including a pixel having a pixel electrode, a common electrode, and a liquid crystal layer disposed between said pixel electrode and said common electrode, said method comprising: defining a modulation period during which a complete intensity value is asserted on said pixel; dividing said modulation period into a plurality of coequal time intervals; asserting voltages on said pixel relative to said common electrode in a first bias direction during a first group of said coequal time intervals; and asserting said voltages on said pixel in a second bias direction during a second group of said coequal time intervals; defining a second modulation period equal to said modulation period during which said complete intensity value is re-asserted on said pixel; dividing said second modulation period into a plurality of coequal time intervals; asserting said voltages on said pixel in said first bias direction during a first group of said coequal dine intervals of said second modulation period; and asserting said voltages on said pixel in said second bias direction during a second group of said coequal time intervals of said second modulation period; and wherein said first group of said time intervals of said modulation period includes a first one of said time intervals and every other one of said time intervals thereafter in said modulation period; said second group of said time intervals of said modulation period includes the remaining ones of said time intervals of said modulation period not included in said first group; said second group of said time intervals of said second modulation period includes a first one of said time intervals of said second modulation period and every other one of said time intervals thereafter; and said first group of said time intervals of said second modulation period includes the remaining ones of said time intervals of said second modulation period not included in said second group.