DIGITAL ANALOG CONVERTER, DRIVING APPATATUS AND DISPLAY DEVICE COMPRISING THE SAME

摘要

PURPOSE: A digital analog converter, a driving apparatus including the same, and a display apparatus are provided to remove the loading effect without any additional current. CONSTITUTION: A digital analog converter (1500) comprises an R- DAC (Digital to Analog Converter) (1510, 1520, 1530) connected with a cascade and a buffer (1540). The R- DAC (1510) comprises multiple resistance strings (R1) and a decoder (1512). The R-DAC (1520) comprises multiple resistance strings (R2) which connected to the R-DAC (1510) and a decoder (1522). The R-DAC (1530) comprises multiple resistance strings (R3) which connected to the R-DAC (1520) and a decoder (1532). The buffer is connected to the output terminal of the R-DAC (1530). [Reference numerals] (1512,1532) Four bits decoder; (1522) Two bits decoder