LG Display Co., Ltd.
Display device and driving method thereof

Abstract:

A display device includes a display panel including a plurality of data lines; a plurality of data drive ICs configured to provide data voltages to the data lines; and a controller configured to rearrange video data received from an external device and transmit region-wise video data to the plurality of data drive ICs, to receive coordinates of information regions included in the video data and store video data of the information regions in advance, to calculate a checksum for checking an error in the region-wise video data based on the coordinates, to transmit the coordinates and the checksum to the data drive ICs and receive feedbacks about comparison results with respect to the checksum, and when a data drive IC that has failed is confirmed based on the feedback results, to update video data of the information region displayed by the data drive IC to region-wise video data of a normal data drive IC and output the video data.