Display device
A display device includes a display panel having a general area including first subpixels, and a sensor area including second subpixels and light-transmitting area. Each of the first subpixels and the second subpixels includes a first active layer disposed on a substrate and formed of a first material, a first gate layer disposed on the first active layer, a second gate layer disposed on the first gate layer, a second active layer disposed on the second gate layer and formed of a second material different from the first material, a third gate layer disposed on the second active layer, and a light-blocking layer disposed between the substrate and the first active layer and overlapping the second active layer in a thickness direction.
1 . A display device, comprising a plurality of first subpixels in a first area,
the first subpixels comprises:
a first light-emitting element;
a first driving transistor that controls a driving current provided to the first light-emitting element;
a first-first transistor providing an initialization voltage to a first node that is a gate electrode of the first driving transistor;
a first-second transistor connecting the first node and a second node that is a drain electrode of the first driving transistor;
a first-third transistor providing a data voltage to a third node that is a source electrode of the first driving transistor;
a first-fourth transistor connecting a driving voltage line and the third node;
a first-fifth transistor connecting the second node and a fourth node that is an anode electrode of the first light-emitting element;
a first active layer disposed on a substrate and including an active areas of the first driving transistor, the first-third transistor, and first-fifth transistor;
a second active layer disposed on the first active layer and including an active areas of the first-first transistor and the first-second transistor; and
a first light-blocking layer disposed between the substrate and the first active layer and overlapping the first active layer and the second active layer in a thickness direction.
2 . The display device of claim 1 , wherein the source electrode and the drain electrode of the first driving transistor are included in the first active layer,
the source electrode of the first driving transistor and a drain electrode of the first-third transistor are formed integrally, and
the drain electrode of the first driving transistor and a source electrode of the first-fifth transistor are formed integrally.
3 . The display device of claim 2 , wherein a drain electrode and a source electrode of the first-first transistor are included in the second active layer,
a drain electrode and a source electrode of the first-second transistor are included in the second active layer,
the source electrode of the first-first transistor and the source electrode of the first-second transistor are formed integrally.
4 . The display device of claim 2 , wherein the first subpixels further comprises a source-drain layer on the second active layer,
the source-drain layer comprises a first connecting electrode connecting the gate electrode of the first driving transistor and the source electrode of the first-second transistor.
5 . The display device of claim 4 , wherein the source-drain layer further comprises a second connecting electrode connecting the drain electrode of the first driving transistor and the drain electrode of the first-second transistor.
6 . The display device of claim 5 , wherein the source-drain layer further comprises a third connecting electrode connecting a data line providing the data voltage and a source electrode of the first-third transistor.
7 . The display device of claim 1 , wherein the first subpixels further comprises:
a first conductive layer disposed on the first active layer;
a second conductive layer disposed between the first conductive layer and the second active layer; and
a third conductive layer disposed on the second active layer,
the first conductive layer includes gate electrodes of the first driving transistor, the first-third transistor, and the first-fifth transistor,
the third conductive layer includes gate electrodes of the first-first transistor and the first-second transistor.
8 . The display device of claim 7 , wherein the second conductive layer includes:
a first metal layer overlaps the active area of the first-first transistor; and
a second metal layer overlaps the active area of the first-second transistor.
9 . The display device of claim 8 , wherein the first light-blocking layer receives a different voltage from the first and second metal layers.
10 . The display device of claim 1 , further comprising a plurality of second subpixels in a second area adjacent to the first area,
the second subpixels comprises:
a second light-emitting element;
a second driving transistor that controls a driving current provided to the second light-emitting element;
a second-first transistor providing an initialization voltage to a first node that is a gate electrode of the second driving transistor;
a second-second transistor connecting the first node and a second node that is a drain electrode of the second driving transistor;
a second-third transistor providing a data voltage to a third node that is a source electrode of the second driving transistor;
a second-fourth transistor connecting a driving voltage line and the third node;
a second-fifth transistor connecting the second node and a fourth node that is an anode electrode of the second light-emitting element;
a first active layer disposed on a substrate and including an active areas of the second driving transistor, the second-third transistor, and second-fifth transistor;
a second active layer disposed on the first active layer and including an active areas of the second-first transistor and the second-second transistor; and
a second light-blocking layer disposed between the substrate and the first active layer and overlapping the first active layer in a thickness direction.
11 . The display device of claim 10 , wherein the second light-blocking layer is spaced apart from the second active layer in a plan view.
12 . The display device of claim 10 , the first active layer of the first subpixels and the first active layer of the second subpixels are disposed on a same layer,
the second active layer of the first subpixels and the second active layer of the second subpixels are disposed on a same layer, and
the first light-blocking layer and the second light-blocking layer are disposed on a same layer.
13 . A display device, comprising a plurality of first subpixels in a first area,
the first subpixels comprises:
a first light-emitting element;
a first driving transistor that controls a driving current provided to the first light-emitting element;
a first-first transistor providing an initialization voltage to a first node that is a gate electrode of the first driving transistor;
a first-second transistor connecting the first node and a second node that is a drain electrode of the first driving transistor;
a first-third transistor providing a data voltage to a third node that is a source electrode of the first driving transistor; and
a first light-blocking layer overlapping active areas of the first driving transistor, the first-first transistor, the first-second transistor, and the first-third transistor in a thickness direction.
14 . The display device of claim 13 , wherein the source electrode and the drain electrode of the first driving transistor are included in a first active layer,
the source electrode of the first driving transistor and a drain electrode of the first-third transistor are formed integrally.
15 . The display device of claim 14 , wherein a drain electrode and a source electrode of the first-first transistor are included in a second active layer on the first active layer,
a drain electrode and a source electrode of the first-second transistor are included in the second active layer,
the source electrode of the first-first transistor and the source electrode of the first-second transistor are formed integrally.
16 . The display device of claim 15 , wherein the first subpixels further comprises a source-drain layer on the second active layer,
the source-drain layer comprises a first connecting electrode connecting the gate electrode of the first driving transistor and the source electrode of the first-second transistor.
17 . The display device of claim 16 , wherein the source-drain layer further comprises a second connecting electrode connecting the drain electrode of the first driving transistor and the drain electrode of the first-second transistor.
18 . The display device of claim 17 , wherein the source-drain layer further comprises a third connecting electrode connecting a data line providing the data voltage and a source electrode of the first-third transistor.
19 . The display device of claim 15 , wherein the first subpixels further comprises:
a first conductive layer disposed on the first active layer;
a second conductive layer disposed between the first conductive layer and the second active layer; and
a third conductive layer disposed on the second active layer,
the first conductive layer includes gate electrodes of the first driving transistor and the first-third transistor,
the third conductive layer includes gate electrodes of the first-first transistor and the first-second transistor.
20 . The display device of claim 19 , wherein the second conductive layer includes:
a first metal layer overlaps the active area of the first-first transistor; and
a second metal layer overlaps the active area of the first-second transistor.
21 . The display device of claim 13 , further comprising a plurality of second subpixels in a second area adjacent to the first area,
the second subpixels comprises:
a second light-emitting element;
a second driving transistor that controls a driving current provided to the second light-emitting element;
a second-first transistor providing an initialization voltage to a first node that is a gate electrode of the second driving transistor;
a second-second transistor connecting the first node and a second node that is a drain electrode of the second driving transistor;
a second-third transistor providing a data voltage to a third node that is a source electrode of the second driving transistor; and
a second light-blocking layer disposed between the substrate and the first active layer and overlapping active areas of the second driving transistor and the second-third transistor in a thickness direction.
22 . The display device of claim 21 , wherein the first driving transistor and second driving transistor are disposed on a same layer,
the first-first transistor and the second-first transistor are disposed on a same layer,
the first-second transistor and the second-second transistor are disposed on a same layer,
the first-third transistor and the second-third transistor are disposed on a same layer, and the first light-blocking layer and the second light-blocking layer are disposed on a same layer.