Abstract: A pixel includes: a light emitting element; a first transistor including a first electrode connected to a first power line, to which a voltage of the first power supply is supplied, where the first transistor controls, in response to a voltage of a first node connected to a gate electrode thereof, current flowing from the first power line to a second power line, to which a voltage of a second power supply is supplied, via the light emitting element; a second transistor connected between a data line and a second node, where the second transistor is turned on when a first scan signal is supplied thereto through a first scan line; a first capacitor connected between the first node and the second node; and a connector electrically connected between the first node to the second node.

Abstract: A display panel includes: a silicon substrate; a first active pattern including a single-crystalline semiconductor layer on the silicon substrate; a first gate insulating layer covering the first active pattern; a first gate electrode on the first gate insulating layer, and including at least a portion overlapping with the first active pattern; a first interlayer insulating layer on the first gate electrode; a second active pattern on the first interlayer insulating layer, and including a metal oxide semiconductor; a second gate insulating layer covering the second active pattern; a second gate electrode on the second gate insulating layer, and including at least a portion overlapping with the second active pattern; a second interlayer insulating layer covering the second gate electrode; and a source/drain electrode layer on the second interlayer insulating layer, and connected to the first and second active patterns.

Abstract: The present disclosure relates to a display device which includes: a substrate; a semiconductor layer disposed on the substrate and including a driving transistor and a second transistor each of which including a channel, a first region, and a second region; a first gate insulating layer disposed on the semiconductor layer, a gate electrode of the second transistor disposed on the first gate insulating layer and overlapping the channel of the second transistor; a second gate insulating layer disposed on the gate electrode of the gate electrode of the second transistor; and a gate electrode of the first driving transistor disposed on the second gate insulating layer and overlapping the channel of the driving transistor.

Abstract: A display device includes pixels at least one of which includes a light emitting element connected between a first power source and a second power source, a first transistor connected between the first power source and the light emitting element and controlling a driving current flowing through the light emitting element in response to a voltage of a first node, a switching transistor connected to the first node and including and active layer that includes first and second conductive regions spaced apart from each other, first and second channel regions disposed between the first and second conductive regions, and a common conductive region disposed between the first and second channel regions, and a conductive pattern overlapping the active layer to face the common conductive region.

Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 ?m to about 2 ?m, and a length of the channel of the third transistor is in a range of about 1 ?m to about 2.5 ?m.

Abstract: A display device includes a light emitting element disposed on a substrate, a first transistor which controls a driving current flowing in the light emitting element, a second transistor which supplies a data voltage to a gate electrode of the first transistor, a first-third transistor and a second-third transistor connected in series between the gate and drain electrodes of the first transistor, a first charge injection layer adjacent to a drain electrode of the first-third transistor electrically connected to the gate electrode of the first transistor on a semiconductor region of the first-third transistor, and a second charge injection layer adjacent to a source electrode of the second-third transistor integrally formed with the drain electrode of the first transistor on a semiconductor region of the second-third transistor. A charge injection area of the first charge injection layer is greater than a charge injection area of the second charge injection layer.

Abstract: A display device includes: a substrate; a first display layer on a first surface of the substrate; a second display layer on a second surface of the substrate; a first pixel of the first display layer; and a second pixel of the second display layer, wherein the first pixel and the second pixel comprise different numbers of transistors.

Abstract: A display device includes a light-emitting element disposed on a substrate, a first transistor configured to control a driving current flowing in the light-emitting element, a second transistor configured to apply a data voltage to a source electrode of the first transistor, a third-first transistor connected to a gate electrode of the first transistor, and a third-second transistor connected between a source electrode of the third-first transistor and a drain electrode of the first transistor. One side of a semiconductor region of the third-second transistor adjacent to a source electrode of the third-second transistor has a first width, and another side of the semiconductor region of the third-second transistor adjacent to a drain electrode of the third-second transistor has a second width smaller than the first width.

Abstract: A display device includes a substrate having a light emitting area and a non-light emitting area; a first anode electrode on the light emitting area of the substrate; a pixel defining layer on the non-light emitting area of the substrate and defining a first opening; an organic separator layer on the pixel defining layer and defining a second opening; a first light emitting layer on the first anode electrode; a common electron layer on the first light emitting layer and the organic separator layer; and a common electrode on the common electron layer, wherein the organic separator layer does not overlap the light emitting area, and overlaps the non-light emitting area to be in contact with the pixel defining layer, the first light emitting layer, and the common electron layer.

Abstract: A display device includes: a light emitting element on a substrate; a third-first transistor and a third-second transistor connected in series between a gate electrode of the first transistor and a drain electrode of the first transistor; a first metal layer on the substrate and comprising a gate electrode of the third-first transistor and a gate electrode of the third-second transistor; a hydrogen passivation layer on the first metal layer; a semiconductor region of each of a first transistor, the third-first transistor, and the third-second transistor on the hydrogen passivation layer; a gate electrode on the capping layer; a first bias electrode on a same layer as the gate electrode of the first transistor and overlapping the semiconductor region of the third-first transistor; and a second bias electrode on a same layer as the first bias electrode and overlapping the semiconductor region of the third-second transistor.

Abstract: A display device includes a substrate, a semiconductor layer disposed on the substrate, and including a first channel portion, a second channel portion, a connecting portion disposed between the first channel portion and the second channel portion, and electrode regions, a first insulating layer disposed on the semiconductor layer, a gate conductor disposed on the first insulating layer and including a first gate electrode overlapping the first channel portion and a second gate electrode overlapping the second channel portion, signal lines disposed on the substrate, a first electrode electrically connected to at least one of electrode regions of the semiconductor layer, an emission layer disposed on the first electrode, and a second electrode disposed on the emission layer, and the first channel portion and the second channel portion of the semiconductor layer each have a first width greater than a second width of the connecting portion.

Abstract: A light emitting display device includes: a light emitting element; a second transistor connected to a scan line; a first transistor which applies a current to the light emitting element; a capacitor connected to a gate electrode of the first transistor; and a third transistor connected to an output electrode of the first transistor and the gate electrode of the first transistor. Channels of the second transistor, the first transistor, and the third transistor are disposed in a polycrystalline semiconductor layer, and a width of a channel of the third transistor is in a range of about 1 ?m to about 2 ?m, and a length of the channel of the third transistor is in a range of about 1 ?m to about 2.5 ?m.

Abstract: A display device includes: a plurality of pixels connected to gate lines and data lines; a gate driver to supply a gate signal to the gate lines; and a data driver to supply a data signal to the data lines. The gate driver includes: a first transistor including a first active layer at a first layer; and a second transistor including a second active layer at a second layer on the first layer.

Abstract: An embodiment of a display device includes a flexible substrate including a polyimide layer and a barrier layer disposed on the polyimide layer. A driving transistor and a second transistor are disposed on the flexible substrate and include a polycrystalline semiconductor layer. A third transistor is disposed on the flexible substrate and includes an oxide semiconductor layer. A light emitting diode is electrically connected to the driving transistor. A bottom shield layer is disposed between the polyimide layer and the polycrystalline semiconductor layer in a cross-sectional view and disposed around a channel of the driving transistor in a plan view.

Abstract: A display device includes: a light emitting element on a substrate; a third-first transistor and a third-second transistor connected in series between a gate electrode of the first transistor and a drain electrode of the first transistor; a first metal layer on the substrate and comprising a gate electrode of the third-first transistor and a gate electrode of the third-second transistor; a hydrogen passivation layer on the first metal layer; a semiconductor region of each of a first transistor, the third-first transistor, and the third-second transistor on the hydrogen passivation layer; a gate electrode on the capping layer; a first bias electrode on a same layer as the gate electrode of the first transistor and overlapping the semiconductor region of the third-first transistor; and a second bias electrode on a same layer as the first bias electrode and overlapping the semiconductor region of the third-second transistor.

Abstract: A display device includes a first transistor configured to control a driving current flowing from a first electrode to a second electrode according to a voltage applied to a gate electrode of the first transistor, and a second transistor between the second electrode of the first transistor and the gate electrode of the first transistor, the second transistor including a first sub-transistor and a second sub-transistor. A same scan signal is to be transmitted to a gate electrode of the first sub-transistor and a gate electrode of the second sub-transistor. A gate insulating layer of the first sub-transistor includes a first thickness. A gate insulating layer of the second sub-transistor includes a second thickness smaller than the first thickness.

Abstract: A light emitting display device includes a driving transistor including a first driving gate electrode, a second driving gate electrode, a first electrode, and a second electrode, a second transistor including a gate electrode, a first electrode connected to a data line, and a second electrode connected to the second driving gate electrode, a light emitting diode including an anode directly connected to the second electrode of the driving transistor, a storage capacitor including a first storage electrode connected to the anode of the light emitting diode and a second storage electrode connected to the second driving gate electrode, a driving voltage line directly connected to the first electrode of the driving transistor, and a light emitting control line directly connected to the first driving gate electrode.

Abstract: The disclosure relates to a display device, and more particularly, to a display device capable of reducing a dead space area while improving current driving capability of pull-up and pull-down transistors. According to an embodiment of the disclosure, a substrate having a display area and a non-display area; pixels arranged in the display area of the substrate; and a gate driving circuit disposed in the non-display area of the substrate and connected to a transistor of the pixel. The gate driving circuit includes a pull-up transistor and a pull-down transistor. At least one of the pull-up and pull-down transistors includes a plurality of sub-transistors including a plurality of gate electrodes, and wherein the sub-transistors shares at least one of the gate electrodes.

Abstract: A display device offering a stabilized output of a small gate driving circuit is presented. The display device includes a substrate having a display area and a non-display area; a pixel disposed in the display area of the substrate; and a gate driving circuit disposed in the non-display area of the substrate and connected to a transistor of the pixel, wherein the gate driving circuit comprises: a node control unit; a pull-up transistor connected to a set node of the node control unit through a gate electrode; and a pull-down transistor connected to a reset node of the node control unit through a gate electrode, wherein a width of a first channel region of the pull-up transistor is greater than a width of a second channel region of the pull-down transistor.

Abstract: A display device includes a light emitting element disposed on a substrate, a first transistor which controls a driving current flowing in the light emitting element, a second transistor which supplies a data voltage to a gate electrode of the first transistor, a first-third transistor and a second-third transistor connected in series between the gate and drain electrodes of the first transistor, a first charge injection layer adjacent to a drain electrode of the first-third transistor electrically connected to the gate electrode of the first transistor on a semiconductor region of the first-third transistor, and a second charge injection layer adjacent to a source electrode of the second-third transistor integrally formed with the drain electrode of the first transistor on a semiconductor region of the second-third transistor. A charge injection area of the first charge injection layer is greater than a charge injection area of the second charge injection layer.