Patent ID: 8830158
Filing Date: 2014-09-09
Classification: G09G

Abstract:
1. A method of local dimming a light source, the method comprising: driving a light source including a plurality of driving blocks having an I×J matrix structure, wherein I and J are natural numbers, each of the driving blocks having light-emitting blocks having an i×j matrix structure, wherein i and j are natural numbers; generating a number of i×j driving signals corresponding to a number of the I×J driving blocks; time-sharing each of the number of i×j driving signals to sequentially supply and individually control a corresponding light-emitting block of each of the number of the I×J driving blocks and emit light from the corresponding light-emitting block when a corresponding switching element is turned on, wherein each of first driving signals of the number of the i×j driving signals is supplied to each of first light emitting blocks of the number of the I×J driving blocks and each of second driving signals of the number of the i×j driving signals is supplied to each of second light emitting blocks of the number of the I×J driving blocks; and adjusting luminance of a first light-emitting area according to a size of the first light-emitting area corresponding to a display area in which an image having a maximum luminance is displayed.