Display device with sensor

1. A display device with a sensor comprising:

a substrate including a display region and a peripheral region on a periphery of the display region;

a plurality of detection electrodes arranged in a row-column configuration in the display region;

a plurality of detection lines coupled to the respective detection electrodes;

a plurality of pixel transistors arranged in the display region;

a first dummy pixel transistor arranged in the peripheral region;

a second dummy pixel transistor arranged between the first dummy pixel transistor and an edge of the substrate in the peripheral region;

a gate line coupling a gate of one of the pixel transistors, a gate of the first dummy pixel transistor, and a gate of the second dummy pixel transistor;

a signal line coupling a source of one of the pixel transistors and a source of the first dummy pixel transistor; and

a plurality of pixel electrodes coupled to the respective pixel transistors, wherein

a shape of the substrate in a plan view includes a curve of a curved portion,

the detection electrodes include a first electrode and a second electrode having a different shape from a shape of the first electrode in a plan view,

the second electrode is juxtaposed with the curved portion,

the detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode,

the second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view,

the first dummy pixel transistor is not coupled to any of the pixel electrodes,

a width of the gate of the first dummy pixel transistor is larger than a width of the gate of the one of the pixel transistors, and

a source of the second dummy pixel transistor is not electrically coupled to anything.

2. The display device with the sensor according to claim 1 , wherein

the second line includes:

a first linear portion located in the display region;

a second linear portion coupled to the first linear portion and located in the peripheral region; and

a third linear portion coupled to the second linear portion and located in the display region.

3. The display device with the sensor according to claim 2 ,

wherein the second electrode overlaps with the second linear portion.

4. The display device with the sensor according to claim 1 , wherein

the substrate includes a recessed portion recessed from an edge of the substrate toward the display region, and

the recessed portion is the curved portion.

5. The display device with the sensor according to claim 1 , wherein

the substrate includes a corner in a plan view, and

the corner is the curved portion.

6. The display device with the sensor according to claim 1 , wherein

the second line branches into a plurality of lines that are coupled to the second electrode.

7. The display device with the sensor according to claim 1 ,

wherein the second electrode overlaps above the first dummy pixel transistor and the second dummy pixel transistor.

8. A display device with a sensor comprising:

an external coupling terminal arranged along a first side of a first substrate;

a notch formed at a second side of the first substrate, the second side facing the first side;

a plurality of detection electrodes arranged in a row-column configuration in a display region; and

a metal line coupled to at least one of the detection electrodes, wherein

the detection electrodes include: a first detection electrode; and a second detection electrode juxtaposed with the first detection electrode in a column direction and having a different shape from a shape of the first detection electrode,

the second detection electrode is located between the notch and the first detection electrode in the column direction and is coupled to the metal line,

the metal line includes:

a first linear portion extending in a row direction toward the first side;

a second linear portion coupled to the first linear portion and extending along the notch, formed in a staircase pattern, and located in a non-display region between the display region and the notch; and

a third linear portion coupled to the second linear portion and extending in the row direction, and coupled to the second detection electrode through a plurality of contact holes,

the second detection electrode extends from the display region toward the notch, and an end portion of the second detection electrode is located between the second linear portion and the notch,

a black matrix is formed in the non-display region and overlaps with the second linear portion of the metal line, and

the end portion of the second detection electrode is located between an end portion of the black matrix at the display region and the notch.

9. The display device with the sensor according to claim 8 , wherein

the first linear portion branches into a plurality of lines at a coupling position at which the first linear portion is coupled with the second linear portion, and each of the branched lines extends in the row direction,

the third linear portion branches into a plurality of lines at a coupling position at which the third linear portion is coupled with the second linear portion, and each of the branched lines extends in the row direction,

the second linear portion includes lines, a number of which is less than a number of the branched lines of the first linear portion and a number of the branched lines of the third linear portion, and

the first linear portion is longer in the row direction than the third linear portion.

10. The display device with the sensor according to claim 9 , further comprising an organic insulating film, wherein

a first surface of the organic insulating film is in contact with the first linear portion, the second linear portion, and the third linear portion of the metal line in a direction perpendicular to both the row direction and the column direction,

a second surface of the organic insulating film facing the first surface in the direction perpendicular is in contact with the second detection electrode, and

the third linear portion is coupled to the second detection electrode through the contact holes formed in the organic insulating film.