SYSTEM FOR COMPENSATING GAMMA DATA, DISPLAY DEVICE INCLUDING THE SAME AND COMPENSATING METHOD OF GAMMA DATA

摘要

PURPOSE: A gamma data compensation system, a display device including the same, and a gamma data compensation method are provided to improve the productivity and reliability of the display device by compensating gamma data or R,G,B independent gamma data to be suitable to each display device. CONSTITUTION: A data driver outputs a data voltage on a display panel(S11). A pixel voltage is delivered from a feedback voltage to multiplexer(S12). An A/D converter converts the feedback voltage into feedback data(S13). A signal controller determines whether an n-th gradation is a maximum gradation or not(S14). The single controller stores the feedback data of the n-th gradation on a look-up table(S16). [Reference numerals] (S11) Outputting a data voltage for an n-th gradation on a display panel; (S12) Feeding back the charged voltage to a pixel; (S13) Selecting a feedback voltage and converting AC to DC; (S14) N-th gradation = maximum gradation?; (S16) Storing feedback gamma data; (S17) Comparing a goal gamma data and the feedback gamma data; (S18) Existing the feedback gamma data in distribution?; (S19) Compensating the gamma data; (S20) N←minimum gradation; (S21) Storing final gamma data