Patent ID: 7772869

Claim:
A display device comprising: a plurality of first display signal lines; a plurality of second display signal lines intersecting the first display signal lines; a plurality of pixels connected to one of the first display signal lines and one of the second display signal lines, respectively; a plurality of first sensor signal lines respectively disposed at predetermined pixel rows (hereinafter referred to as “a pixel row group”) and parallel to the first display signal lines; a plurality of second sensor signal lines respectively disposed at predetermined pixel columns (hereinafter referred to as “a pixel column group”) and parallel to the second display signal lines; a plurality of first sensor signal output units respectively connected to the first sensor signal lines; a plurality of second sensor signal output units respectively connected to the second sensor signal lines; a plurality of first inspection switching elements respectively connected to the first display signal lines; a plurality of second inspection switching elements respectively connected to the second display signal lines; a first inspection line for transmitting a first test signal from the outside to the first inspection switching elements; and a second inspection line for transmitting the first test signal to the second inspection switching elements, wherein the first inspection switching elements connected to the first display signal lines included in the same pixel row” group are connected to the same first sensor signal output unit, and the second inspection switching elements connected to the second display signal lines included in the same pixel column group are connected to the same second sensor signal output unit.