Display panel, display device and electronic apparatus

1. A display panel, comprising:

plural display pixels arranged in a matrix state;

wherein each display pixel includes an organic EL device, a pixel circuit driving the organic EL device; and

the organic EL device is formed by stacking a first electrode connected to the pixel circuit, a light emitting layer, and a second electrode;

the first electrode is a cathode line, and is in contact with the light emitting layer;

the second electrode is a strip electrode shared by plural organic EL devices arranged in a row direction or in a column direction, wherein the second electrode is in contact with the light emitting layer; and

plural detection electrodes are provided on the display pixels on a side of the organic EL device second electrode as a plurality of strips so as to extend in a direction intersecting with the second electrode,

wherein the first electrode, the second electrode, and the detection electrodes occupy different layers of the display panel,

wherein at least one of the plural detection electrodes is separated from the second electrode of the organic EL device by at least a first insulating layer,

wherein the first electrode of the organic EL device is separated from the second electrode of the organic EL device by at least the light emitting layer,

wherein the detection electrodes are closer to a video display surface of the display panel than the second electrode,

wherein the second electrode is closer to the video display surface of the display panel than the first electrode,

wherein the detection electrodes are not positioned directly above the organic EL devices,

wherein first and second detection electrodes included in the plural detection electrodes extend parallel to first and second sides of a plurality of the organic EL devices,

wherein at least one of the plural detection electrodes cooperates with the second electrode to detect a contact position of an object, and

wherein the first electrode cooperates with the second electrode to generate an emission of light from the organic EL device.

2. The display panel of claim 1 , wherein the second electrode includes a concave surface on a side facing the video display surface of the display panel.

3. The display panel of claim 2 , wherein the light emitting layer includes a concave surface corresponding to the concave surface of the second electrode.

4. The display panel of claim 3 , wherein the light emitting layer is provided in an opening in an insulating layer.

5. A display device comprising:

a display panel; and

a drive circuit driving the display panel,

wherein the display panel includes plural display pixels arranged in a matrix state,

each display pixel includes an organic EL device and a pixel circuit driving the organic EL device,

the organic EL device is formed by stacking a first electrode connected to the pixel circuit, a light emitting layer, and a second electrode,

the first electrode is a cathode line, and is in contact with the light emitting layer,

the second electrode is a strip electrode shared by plural organic EL devices arranged in a row direction or in a column direction, wherein the second electrode is in contact with the light emitting layer,

the display panel includes plural detection electrodes provided so as to extend in a direction intersecting with the strip electrode,

wherein the first electrode, the second electrode, and at least one of the detection electrodes occupy different layers of the display panel,

wherein at least one of the plural detection electrodes is separated from the second electrode of the organic EL device by at least a first insulating layer,

wherein the first electrode of the organic EL device is separated from the second electrode of the organic EL device by at least the light emitting layer,

wherein the detection electrodes are closer to a video display surface of the display panel than the second electrode,

wherein the second electrode is closer to the video display surface of the display panel than the first electrode,

wherein the detection electrodes are not positioned directly above the organic EL devices,

wherein first and second detection electrodes included in the plural detection electrodes extend parallel to first and second sides of a plurality of the organic EL devices, wherein at least one detection electrode in the plural detection electrodes cooperates with the second electrode to detect a contact position of an object,

wherein the first electrode cooperates with the second electrode to generate an emission of light from the organic EL device, and

wherein the drive circuit sequentially scans the plural strip electrodes during a non-light emitting period to perform a touch detection operation.

6. The display device according to claim 5 ,

wherein the drive circuit includes a contact position detection circuit detecting a contact position of an object based on variation of electric current flowing in the strip electrode.

7. The display device according to claim 6 ,

wherein the contact position detection circuit includes:

a current detection unit detecting electric current flowing in the strip electrode,

a current calculation unit deriving electric current at the time of a non-contact state based on a video signal, and

a contact position calculation unit deriving contact position information based on a current value detected by the current detection unit and a current value derived by the current calculation unit.

8. The display device according to claim 7 ,

wherein the pixel circuit includes a storage capacitor, a first transistor writing a voltage corresponding to a video signal into the storage capacitor and a second transistor driving the organic EL device based on the voltage of the storage capacitor, and

the first transistor is arranged at a position on which external light is incident.

9. The display device according to claim 6 ,

wherein the display panel includes a light shielding layer for shielding external light incident on the pixel circuit.

10. An electronic apparatus comprising:

a display device,

wherein the display device includes

a display panel and

a drive circuit driving the display panel,

in which the display panel includes plural display pixels arranged in a matrix state,

each display pixel includes an organic EL device and a pixel circuit driving the organic EL device,

the organic EL device is formed by stacking a first electrode connected to the pixel circuit, a light emitting layer, and a second electrode, wherein the first electrode is a cathode line, and is in contact with the light emitting layer, wherein the second electrode is a strip electrode shared by plural organic EL devices arranged in a row direction or in a column direction, and wherein the second electrode is in contact with the light emitting layer,

the display panel includes plural detection electrodes provided so as to extend in a direction intersecting with the strip electrode,

wherein the first electrode, the second electrode and at least one of the detection electrodes occupy different layers of the display panel,

wherein at least one of the plural detection electrodes is separated from the second electrode of the organic EL device by at least a first insulating layer,

wherein the first electrode of the organic EL device is separated from the second electrode of the organic EL device by at least the light emitting layer,

wherein the detection electrodes are not positioned directly above the organic EL devices,

wherein the detection electrodes are closer to a video display surface of the display panel than the second electrode,

wherein the second electrode is closer to the video display surface of the display panel than the first electrode,

wherein at least one detection electrode in the plurality of detection electrodes cooperates with the second electrode to detect a contact position of an object, and

wherein the first electrode cooperates with the second electrode to generate an emission of light from the organic EL device, and

the drive circuit sequentially scans the plural strip electrodes during a non-light emitting period.