Active matrix substrate and method for inspecting the same
An active matrix substrate includes a pixel region including a plurality of pixels over a substrate and a frame region outside the pixel region. In the plurality of pixels, a plurality of photoelectric conversion elements are provided. In the frame region, an antistatic hole is provided. The pixel region and a portion of the frame region are covered with an insulating film, and the antistatic hole is bored through the insulating film. An antistatic wire is provided in the frame region so as to surround the pixel region, and has a surface exposed in the antistatic hole.
1. An active matrix substrate comprising:
a substrate;
a pixel region including a plurality of pixels formed over the substrate;
a plurality of photoelectric conversion elements provided in the plurality of pixels;
an antistatic wire provided in a frame region outside the pixel region so as to surround the pixel region;
an insulating film covering a portion of the frame region and the pixel region; and
an antistatic hole bored through the insulating film in the frame region,
wherein the antistatic wire has a surface exposed in the antistatic hole.
2. The active matrix substrate according to claim 1 , wherein
the antistatic wire includes a first wiring layer surrounding the pixel region and a second wiring layer overlapped with the antistatic hole in plan view and connected to the first wiring layer, and
the second wiring layer has a surface exposed in the antistatic hole.
3. The active matrix substrate according to claim 1 , further comprising:
a plurality of data lines; and
a plurality of data terminals connected to first ends of the plurality of data lines, respectively,
wherein the plurality of data terminals are connected to the antistatic wire.
4. The active matrix substrate according to claim 1 , wherein the antistatic hole is provided in at least one corner over the substrate in the frame region.
5. The active matrix substrate according to claim 4 , further comprising:
a first antistatic wire provided along a first side of two sides constituting a corner in which the antistatic hole is provided;
a second antistatic wire provided along a second side of the two sides;
a first antistatic photoelectric conversion element, provided along the first side in the frame region, that has an anode connected to the first antistatic wire; and
a second antistatic photoelectric conversion element, provided along the second side in the frame region, that has a cathode connected to the second antistatic wire,
wherein
the first antistatic wire has a surface exposed in the antistatic hole, and
the second antistatic wire is electrically connected to the first antistatic wire in the antistatic hole.
6. The active matrix substrate according to claim 5 , wherein a plurality of the first antistatic photoelectric conversion elements and a plurality of the second first antistatic photoelectric conversion elements are provided.
7. An active matrix substrate comprising:
a substrate;
a pixel region including a plurality of pixels formed over the substrate;
a plurality of photoelectric conversion elements provided in the plurality of pixels;
a plurality of data lines formed over the substrate;
a plurality of first terminals connected to first ends of the plurality of data lines, respectively, in a frame region outside the pixel region;
an antistatic wire provided in the frame region so as to surround the pixel region and electrically connected to the plurality of first terminals; and
a plurality of protection elements connected between respective ones of the plurality of first terminals and the antistatic wire,
wherein each of the plurality of protection elements includes a first non-linear element connected between a first terminal and the antistatic wire.
8. The active matrix substrate according to claim 7 , wherein each of the plurality of protection elements includes, between a first terminal and the antistatic wire, a second non-linear element connected parallel but oriented in an opposite direction to the first non-linear element.
9. The active matrix substrate according to claim 7 , further comprising a plurality of second terminals connected to second ends of the plurality of data lines, respectively, in the frame region,
wherein the plurality of second terminals are connected to the antistatic wire in the frame region.