Display device and inspection method for display device
View Patent ↗A display device includes scanning lines disposed along rows of display pixels, signal lines disposed along columns of the display pixels, pixel switches disposed near intersections between the scanning lines and the signal lines, pixel electrodes connected to the pixel switches, a counter-electrode disposed to be opposed to the pixel electrodes, storage capacitance lines disposed substantially parallel to the scanning lines, first inspection switches connected to the scanning lines in a peripheral section, second inspection switches connected to the signal lines in the peripheral section, a first wiring line which supplies a signal for turning on/off the first inspection switches, a second wiring line which supplies a signal for turning on/off the second inspection switches, and a third wiring line which applies a signal to the counter-electrode and the storage capacitance lines.
1. A display device including a display section having a plurality of display pixels arrayed in a matrix, and a peripheral section surrounding the display section, comprising:
a plurality of scanning lines disposed along rows of the plurality of display pixels;
a plurality of signal lines disposed along columns of the plurality of display pixels;
a plurality of pixel switches disposed near intersections between the plurality of scanning lines and the plurality of signal lines;
a plurality of pixel electrodes connected to the plurality of pixel switches;
a counter-electrode disposed to be opposed to the plurality of pixel electrodes;
a plurality of storage capacitance lines disposed substantially parallel to the plurality of scanning lines;
a plurality of first inspection switches connected to the plurality of scanning lines, respectively, in the peripheral section;
a plurality of second inspection switches connected to the plurality of signal lines, respectively, in the peripheral section;
a first wiring line configured to supply a signal for turning on/off the plurality of first inspection switches and connected between the gate electrode of each of the first inspection switches and a first electrode;
a first plurality of wiring lines configured to connect between the source electrodes of the first inspection switches and a first plurality of pads to which an inspection signal is supplied;
a second wiring line configured to supply a signal for turning on/off the plurality of second inspection switches and connected between the gate electrode of each of the second inspection switches and a second electrode;
a second plurality of wiring lines configured to connect between the source electrodes of the second inspection switches and a second plurality of pads to which an inspection signal is supplied; and
a third wiring line configured to apply a signal to the counter-electrode and the storage capacitance lines.
2. The display device according to claim 1 , wherein
the first wiring line is connected to a first electrode configured to receive a signal to turn off the plurality of first inspection switches, and
the second wiring line is connected to a second electrode configured to receive a signal to turn off the plurality of second inspection switches.
3. The display device according to claim 1 , wherein
the display device is a display device having a liquid crystal display panel including the display section, and
the pixel electrode includes a reflective electrode.