Patent ID: 8912813

Claim:
A test device for a liquid crystal display device, the liquid crystal display device comprising a plurality of scanning lines and a plurality of data lines that intersect perpendicularly, and a plurality of pixel units defined by the plurality of scanning lines and the plurality of data lines, the pixel units comprising red pixel units, green pixel units and blue pixel units; the test device comprising a data line test means, wherein the data line test means comprises a first shorting bar, a first control line, a second control line, a third control line, a plurality of transmission lines and a plurality of thin film transistor switch elements; wherein gate electrodes of the plurality of thin film transistor switch elements of the data line test means are respectively arranged on the first control line, the second control line and the third control line; the plurality of data lines are respectively connected to the first control line, the second control line and the third control line via drain electrodes of the plurality of thin film transistor switch elements, wherein all the data lines for controlling the blue pixel units are connected to the first control line, and all the data lines for controlling the red pixel units are connected to the second control line, and all the data lines for controlling the green pixel units are connected to the third control line; and source electrodes of the plurality of thin film transistor switch elements of the data line test means are respectively connected to the first shorting bar via a plurality of transmission lines.