Light emitting display device

A light emitting display device, comprising:

• a substrate including a display region in which subpixels are arranged along row lines and column lines;
• a light emitting diode in each of the subpixels, and including an anode electrode, a light emitting layer on the anode electrode, and a cathode electrode on the light emitting layer;
• a test transistor in a row line among the row lines, and including a source electrode connected to the anode electrode of a subpixel among neighboring subpixels in the row line and a drain electrode connected to the cathode electrode of another subpixel among the neighboring subpixels in the row line;
• and
• a test gate line connected to a gate electrode of the test transistor,
• wherein when the test transistor is turned on and a current path is formed in the row line, the cathode electrode of the another subpixel among the neighboring subpixels in the row line is in an electrically floating state.