Patent ID: 9165496
Filing Date: 2015-10-20
Classification: G09G

Abstract:
1. A flat display device comprising: a display panel including a unit pixel having a red sub-pixel, a green sub-pixel, a blue sub-pixel, and a white sub-pixel; and a panel driving unit to drive the flat panel in a first driving period and a second driving period in an alternating manner to display a white image on the unit pixel, wherein the panel driving unit generates first white unit data, to enable two of the red, green, and blue sub-pixels and the white sub-pixel to be driven in the first driving period, wherein the panel driving unit generates second white unit data, to enable three of the sub-pixels, which include the sub-pixel not driven in the first driving period, to be driven in the second driving period, and wherein the first and second driving periods are set in accordance with a variation degree of a threshold voltage of a driving transistor of the sub-pixel not driven in the first driving period and driven in the second driving period.