Method for performing high-speed error diffusion and plasma display panel driving apparatus using the same

[0047] Referring to FIG. 2, a block diagram is shown of a plasma display panel driving apparatus applying a method for performing high speed error diffusion according to an exemplary embodiment of the present invention. A plasma display panel driving apparatus includes A / D converter 100, inverse gamma correctors 200, 300, and error diffusing units 400, 500.

[0048] A / D converter 100 converts an input analog video signal to a digital video signal and outputs the digital video signal. When the analog video signal is converted to the digital video signal, the A / D converter outputs two continuous pixel signals independently at the same time. Thus, in the case where a video signal of one frame is converted and outputted in A / D converter 100, independent frame data (frame 1, frame 2) are formed, of which sizes are half of that of one frame. In this case, the size of each of frame 1 and frame 2 becomes width×legnth=n / 2×m.

[0049] As such, A / D converter 100 outputs two continuous pix