converges quickly to the target this example shows that it takes less than one frame to reach target level as mentioned above the conv table output aoddt and mfbdt when the system detects a picture move i e a iddt and fbdt change then mfbdt is written to the frame buffer in the next frame interval the mfbdt is read and is compared with iddt and output for the next emphasizing compensation data and mfbdt this data emphasizing operation repeats and perform adaptive over drive until convergence occurs to the target level 0084 fig1 exemplifies adaptive over drive data and timing chart 1300 with blph control the solid curve shows adaptive over drive intensity response with blph 0 and this intensity waveform is from the 2nd u2155 th of the screen area of the lcd panel the dashed curve shows adaptive over drive intensity response with blph 1310 1 and this intensity waveform is from 4th u2155 th of the screen area of the lcd panel when blph 1310 1 over shooting of adaptive over drive becomes smaller than blph 1310 0 in this figure the blon waveform indicates backlight on timing and blph waveform indicates conv table control signal from backlight control block because the human eye sees lcd intensity when blon 1 when backlight is on the part labeled by left to right up sloping diagonal hatching is the intensity for the 2nd u2155 th of screen area of the lcd panel after one frame of a picture move and the part labeled by left to right down sloping diagonal hatching is the intensity for the 4th u2155 th of screen area the average intensity.