An active matrix OLED display has pixels (20a, 20b, 20c, 20d) with light emitting areas (182) arranged in rows and columns and includes; a first pixel having a first height in the column direction and disposed in a first column of pixels and in a first row of pixels; a second pixel having a second height (H3) in the column direction and disposed in the first column of pixels and in a second row of pixels wherein the second row of pixels is adjacent to the first row of pixels and the first height being different than the second height; and a first select line (113a) arranged to drive only the first row of pixels and a second select line (113b) spaced from the first select line arranged to drive only the second row of pixels wherein the emitting areas of the first and second pixels are disposed between the first and second select lines.
