| 摘要 |
The present invention relates to a display device and, in particular, to a timing controller, a method for driving the timing controller, and a display device using the timing controller, capable of sequentially storing blocks of frames outputted during a predetermined period, without being overlapped, comparing a previously stored block of a previous frame with a current comparison block of a current frame, which are located at the same position, determining a position of a logo, and adjusting luminance of pixels through which the logo is outputted. For this purpose, the timing controller according to the present invention comprises a block memory, a comparison, and a conversion unit. The block memory sequentially stores image data forming blocks of respective frames, which are outputted through a panel for a predetermined period, among image data. The comparison unit compares previously-stored-block image data forming a previously stored block of a previous frame, which is stored in the block memory, with current-comparison-block image data forming a current comparison block, which corresponds to the previously stored block among blocks constituting a current frame, and determines whether a logo is included in the previously stored block. When information indicating that the logo is included is received from the comparison unit, the conversion unit lowers luminance of the previously-stored-block image data and outputs output image data, the luminance of which is lowered. When information indicating that the logo is not included is received from the comparison unit, the conversion unit arranges the previously-stored-block image data and outputs the arranged output image data. |
