Patent ID: 7486102
Filing Date: 2009-02-03
Classification: G02F,G09G

Abstract:
1. An apparatus for testing a liquid crystal display, comprising: a stage on which a liquid crystal panel is placed; a plurality of vertical blocks, wherein each of the vertical blocks include a plurality of adjacent data lines; a data probe unit that includes a plurality of data connector blocks to provide test pattern signals respectively to groups of at least two of the plurality of vertical blocks of the liquid crystal panel; a plurality of horizontal blocks, wherein each of the horizontal blocks include a plurality of adjacent gate lines; a gate probe unit that provides scanning signals respectively to the plurality of horizontal blocks of the liquid crystal panel; and a controller that provides test pattern signals to the data probe unit and provides scanning signals to the gate probe unit; wherein the controller generates a plurality of test pattern signals that display white test pattern images on overlapping regions of specific ones of the vertical and horizontal blocks of the liquid crystal panel and display black test pattern images on the other overlapping regions of the vertical and horizontal blocks of the liquid crystal panel and provides the plurality of test pattern signals to the data connector blocks through a plurality of test signal transmission lines.