Method of driving a display apparatus, and display apparatus and timing controller for performing the method

A display apparatus comprising:

• a display panel adapted to display an image;
• a light source module adapted to provide light to the display panel, the light source module being divided into a plurality of light-emitting blocks;
• a timing controller adapted to output a luminance pulse having representative grayscale values of the image corresponding to the light-emitting blocks and a synchronization signal including information of a start position of the representative grayscale values;
• and
• a local dimming driving part adapted to drive the light-emitting blocks using the representative grayscale values obtained from the luminance pulse.

A timing controller comprising:

• a representative grayscale value obtaining part adapted to obtain red, green and blue representative grayscale values from an image received from an external device;
• a luminance pulse generating part adapted to generate red, green and blue luminance pulse corresponding to the red, green and blue representative grayscale values, respectively, and further adapted to insert a synchronization signal into one of the red, green and blue luminance pulses;
• and
• an interface part adapted to transmit the red, green, and blue luminance pulses to the external device.

A timing controller comprising:

• a representative luminance value calculating part adapted to calculate representative luminance values using red, green and blue representative grayscale values obtained from an image received from an external device;
• a luminance pulse generating part adapted to insert a synchronization signal including information of a start position of the representative luminance value into a luminance pulse corresponding to the representative luminance value;
• and
• an interface part adapted to transmit the luminance pulse to the external device.