Timing controller, driving method thereof, and flat panel display device using the same

摘要

Provided are a timing controller for converting RGB data to WRGB data, a driving method thereof, and an LCD device using the same. The timing controller according to an embodiment includes a reception unit to receive input RGB data from an external device; a converter to convert the input RGB data into input WRGB data composed of W, R, G and B data; an aligner to convert one of the W, R, G, and B data into 0 to generate conversion WRGB data, the conversion WRGB data having bits less than the total number of bits composing the W, R, G, and B data; a controller to transfer the conversion WRGB data to an external memory; and a re-aligner to convert the conversion WRGB data received from the external memory into digital WRGB data corresponding to the input WRGB data, and to output the digital WRGB data.

主权项

1. A timing controller for use in a display device including an external memory, the timing controller comprising:
a reception unit configured to receive input RGB data from an external device; a converter configured to convert the input RGB data into input WRGB data composed of W, R, G and B data; an aligner configured to convert one of the W, R, G, and B data of the input WRGB data into 0 to generate conversion WRGB data, the conversion WRGB data having bits less than the total number of bits composing the W, R, G, and B data; a controller configured to transfer the conversion WRGB data to the external memory; and a re-aligner configured to receive the conversion WRGB data from the external memory, convert the received conversion WRGB data into digital WRGB data corresponding to the input WRGB data, and to output the digital WRGB data, wherein when each of the W, R, G and B data of the input WRGB data has N bits where N equals a positive integer, the aligner converts the one of the W, R, G, and B data into 0, converts the other remaining data of the W, R, G and B data into new values according to this conversion result, and generates 2-bit location information indicating the one data converted into 0, thereby generating the conversion WRGB data of ((N×3)+2) bits.