Patent ID: 8780036

Claim:
A display apparatus comprising: a backlight unit comprising a plurality of light sources that emit backlight; and a controller configured to control the plurality of light sources of the backlight unit according to an image scanning scheme, wherein the plurality of light sources comprise a first light source and a second light source, wherein the controller controls the first light source to emit backlight during a first lighting period and to be turned off during a first non-lighting period and controls the second light source to emit backlight during a second lighting period and to be turned off during a second non-lighting period, wherein the first lighting period partially overlaps with the second lighting period during an overlapping period, and the first lighting period includes a first non-overlapping period and the overlapping period, and the second lighting period includes the overlapping period and a second non-overlapping period, and wherein the controller decreases a luminance of the first light source during the overlapping period to a first level which is below a luminance of the first light source for the first non-overlapping period and above a luminance of the first light source for the first non-lighting period, and decreases a luminance of the second light source during the overlapping period to a second level which is below a luminance of the second light source for the second non-overlapping period and above a luminance of the second light source for the second non-lighting period.