COLOR FILTER REPAIR APPARTUS

摘要

A color filter repair apparatus is provided to repair a color pixel with trouble by controlling a spray quantity of ink composition according to determined trouble. A color filter substrate to be separated from the upper surface of a stage(110) with a constant distance is received on the stage. A back light unit(140) is arranged on the color filter substrate and emits the light to a color filter substrate. The color filter substrate includes a plurality of color pixels arranged to the matrix type and blocks the light leakage between color pixels. A sensing unit(130) is equipped in the fixed region between the upper side of the stage and the rear side of the color filter substrate. The sensing unit detects the intensity of the light penetrating through the color pixel, converts the intensity of the light to the sensing signal, and outputs the sensing signal. A signal processor(160) receives the amplified sensing signal and calculates the spray quantity of the ink sprayed to the color pixel based on the voltage level of the sensing signal. The signal processing unit outputs the computed result value as a repair signal. An inkjet head unit(170) is electrically connected to the signal processing unit(150) through the second cable and receives the repair signal. A transfer device(180) is physically combined with the inkjet head unit and transfers the inkjet head unit to X and Y axial directions of the upper part of the color filter substrate.