An apparatus for automatically displaying a grade of a liquid crystal
display device and operating method thereof, includes a grade determining
unit of a liquid crystal display panel; a grade inputting unit for
inputting the grade of the liquid crystal display panel whose grade has
been determined in the grade determining unit; a grade discriminating
unit for transferring the grade of a corresponding liquid crystal display
panel based upon receiving data input to the grade inputting unit; a
storing unit having a grade displaying unit for classifying the graded
liquid crystal display panels according to grades and storing the grades;
and a robot driving unit for transferring the liquid crystal display
panel to the storing unit according to instructions from the grade
discriminating unit.
