Patent ID: 8723889

Claim:
A display controller, comprising: a pixel processor for processing working pixel data for a plurality of pixels of a frame, said pixel processor comprising: an overlap detector which detects an overlap region when at least one pixel is within a new update region of a new update is also within a current update region of a temporally overlapping current update of said frame; a collision detector which issues a correction request to request a different and subsequent update upon detection of any colliding pixel within said overlap region that corresponds with a begin pixel value and an end pixel value of said current update in which said begin pixel value is different from said end pixel value and which corresponds with a new pixel value provided by said new update that is different from said end pixel value; and a construction processor which updates working pixel data for each pixel corresponding with one of at least one new pixel value of said new update and that is within said new update region and outside of said current update region and which does not update working pixel data for said any colliding pixel; and a display processing system which simultaneously updates at least one pixel within said current update region and outside said overlap region and at least one pixel within said new update region and outside said overlap region.