Abstract: A pixel, a display device having the same, and a thin film transistor (TFT) substrate for the display device are disclosed. In one aspect, the pixel includes an emitter configured to emit light based at least in part on a driving current. The pixel also includes a driving transistor including an active layer, a first electrode electrically connected to a first end portion of the active layer, a second electrode electrically connected to a second end portion of the active layer, a first gate electrode configured to receive a data voltage from a data driver so as to form a channel in the active layer, and a second gate electrode configured to receive a bias voltage from a voltage source, wherein the channel is configured to adjust the driving current.

Abstract: A display panel including: a cathode electrode formed in a cathode region of the display panel, the cathode electrode entirely covering an active region of the display panel a plurality of pixel units in columns and rows in the active region of the display panel; a ring-shaped edge negative voltage line formed in a ring-shaped edge portion of the cathode electrode configured to supply a negative power supply voltage to the cathode electrode; and a plurality of compensation negative voltage lines connected to the ring-shaped edge negative voltage line, the compensation negative voltage lines extending along a column direction of the display panel and arranged along a row direction of the display panel.

Abstract: An organic light emitting diode display includes: a substrate, a scan line and a previous stage scan line on the substrate to transmit scan signals; a data line and a driving voltage line crossing the scan line and to transmit a data voltage and a driving voltage, respectively; an initialization transistor connected to the previous stage scan line and the driving voltage line, and including an initialization drain electrode connected to a driving gate electrode of a driving transistor; a compensation transistor connected to the scan line and including a compensation drain electrode connected to the initialization drain electrode; and an organic light emitting diode electrically connected to the driving transistor, wherein at least one of the initialization transistor and the compensation transistor includes a plurality of gate electrodes.

Abstract: An organic light emitting display device includes a plurality of pixel columns, a first data wiring, a second data wiring, and a power supply wiring. The pixel columns include pixels repeatedly arranged in a first direction, and the pixel columns are repeatedly arranged in a second direction. The first and second directions are substantially perpendicular to each other. The first data wiring extends in the first direction and is connected to the pixels in an even row. The second data wiring extends in the first direction and are connected to the pixels in an odd row. The power supply wiring extends in the first direction between the first and second data wirings.

Abstract: A display panel including: a cathode electrode formed in a cathode region of the display panel, the cathode electrode entirely covering an active region of the display panel a plurality of pixel units in columns and rows in the active region of the display panel; a ring-shaped edge negative voltage line formed in a ring-shaped edge portion of the cathode electrode configured to supply a negative power supply voltage to the cathode electrode; and a plurality of compensation negative voltage lines connected to the ring-shaped edge negative voltage line, the compensation negative voltage lines extending along a column direction of the display panel and arranged along a row direction of the display panel.

Abstract: An array substrate includes a unit pixel group having first and second sub-pixel rows. The array substrate includes a plurality of gate lines extending along a first direction and adjacent to each other on a base substrate, a plurality of gate electrodes electrically coupled to the gate lines, a plurality of semiconductor patterns overlapping the gate electrodes, a plurality of data lines extending along a second direction and electrically coupled to first portions of the semiconductor patterns, a plurality of drain electrode patterns electrically coupled to second portions of the semiconductor patterns, and a plurality of pixel electrodes electrically coupled to the drain electrodes. The second portion of the semiconductor pattern spaced from the first portion thereof. The gate lines and the data lines are bent. Sub-pixels in the first sub-pixel row have opening areas that are different in size than that of sub-pixels in the second sub-pixel row.

Abstract: A display panel including: a cathode electrode formed in a cathode region of the display panel, the cathode electrode entirely covering an active region of the display panel a plurality of pixel units in columns and rows in the active region of the display panel; a ring-shaped edge negative voltage line formed in a ring-shaped edge portion of the cathode electrode configured to supply a negative power supply voltage to the cathode electrode; and a plurality of compensation negative voltage lines connected to the ring-shaped edge negative voltage line, the compensation negative voltage lines extending along a column direction of the display panel and arranged along a row direction of the display panel.

Abstract: A pixel, a display device having the same, and a thin film transistor (TFT) substrate for the display device are disclosed. In one aspect, the pixel includes an emitter configured to emit light based at least in part on a driving current. The pixel also includes a driving transistor including an active layer, a first electrode electrically connected to a first end portion of the active layer, a second electrode electrically connected to a second end portion of the active layer, a first gate electrode configured to receive a data voltage from a data driver so as to form a channel in the active layer, and a second gate electrode configured to receive a bias voltage from a voltage source, wherein the channel is configured to adjust the driving current.

Abstract: A pixel includes a driving transistor to control an amount of drain-to-source current flowing from a first electrode to a second electrode based on a voltage applied to a first gate electrode. The current is used to control light emitted from an organic light emitting diode. The pixel also includes a first transistor coupled between the first gate electrode and second electrode of the driving transistor. The first gate electrode is under an active layer of the driving transistor, and the first gate electrode overlaps the active layer of the driving transistor.

Abstract: A pixel includes a driving transistor to control an amount of drain-to-source current flowing from a first electrode to a second electrode based on a voltage applied to a first gate electrode. The current is used to control light emitted from an organic light emitting diode. The pixel also includes a first transistor coupled between the first gate electrode and second electrode of the driving transistor. The first gate electrode is under an active layer of the driving transistor, and the first gate electrode overlaps the active layer of the driving transistor.

Abstract: A TFT array substrate includes: a first insulation layer over a semiconductor layer; a second insulation layer over a plurality of first gate wires formed on the first insulation layer; a third insulation layer over a plurality of second gate wires formed on the second insulation layer; a cover metal formed over the third insulation layer and contacting the semiconductor layer through a contact hole that passes through the first, second and third insulation layers; a fourth insulation layer over the cover metal; a protection layer formed over the fourth insulation layer; and an anode electrode formed over the protection layer and contacting the cover metal through a via hole that passes through the protection layer, the fourth insulation layer, and the contact hole.

Abstract: A display apparatus includes a display unit including a thin film transistor (TFT) and a display device. The display device is electrically connected to the TFT and displays an image. A circuit unit is disposed at a side of the display unit and includes a driving device or a signal line unit. The circuit unit includes a damage inducing unit electrically coupled to a conductor in the circuit unit. The damage inducing unit forcibly discharges an electrostatic discharge (ESD) introduced into the circuit unit, thus preventing damage to the driving device or the signal line unit due to the ESD.

Abstract: A thin film transistor array substrate includes: a driving thin film transistor including an active layer having a bent shape, where the active layer includes: a first active pattern extending substantially in a first direction; and a second active pattern extending substantially in a second direction perpendicular to the first direction and connected to the first active pattern, and a gate electrode disposed on the active layer, where gate electrode overlaps the first active pattern and exposes the second active pattern; and a capacitor including a first electrode defined by the gate electrode of the driving thin film transistor, and a second electrode disposed on the first electrode, where the second electrode overlaps substantially an entire surface of the first electrode.

Abstract: An OLED pixel includes a switching transistor to transfer a data signal to a driving transistor. The switching transistor includes a first gate coupled to receive a first scan signal and a second gate coupled to receive a second scan signal received before the first scan signal. A storage capacitor is connected to a first terminal of the driving transistor and the first transistor passes a data signal to a second terminal of the driving transistor based on the first and second scan signals. A compensation transistor and an initialization transistor are also included. The compensation transistor includes first and second gates to receive the first scan signal to establish a signal path between the first terminal and a third terminal of the driving transistor. The initialization transistor establishes a signal path between an initialization voltage and the storage capacitor between its two gates.

Abstract: A flexible display panel includes a first display region that is flat, second display regions located at both sides of the first display region and curved by a predetermined angle, a plurality of pixels formed in the first display region, and a plurality of pixels formed in the second display regions, Each of the plurality of pixels formed in the first display region and the second display regions includes a light-emitting diode and a driving thin-film transistor (TFT) connected to the light-emitting diode, the driving TFT supplying a driving current to the light-emitting diode. A size of the driving TFT varies for each of the plurality of pixels formed in the second display regions so that driving currents supplied by driving TFTs in the second display regions vary in one direction with respect to boundaries between the first display region and the second display regions.

Abstract: Embodiment of the present invention provide for an organic light emitting display with a touch screen panel, including a first substrate; a plurality of pixels on the first substrate; a plurality of signal lines and control lines on the first substrate and coupled to the pixels; a second substrate covering the first substrate; and first electrodes of a touch screen panel on the second substrate. Here, the control lines are second electrodes of the touch screen panel and are arranged in a direction that crosses the first electrodes.

Abstract: A flexible display device and a method of compensating for luminance of the flexible display device, the flexible display device including: a flexible display panel including a first display region and second display regions at opposite sides of the first display region and having a shape of a curved surface that is bent from a central axis of the flexible display panel at a angle; optical sensors disposed in each of the first display region and the second display regions and measuring amounts of light in the first display region and the second display regions; and a luminance compensation unit compensating luminance of the first display region and luminance of the second display regions based on the measured amounts of light.

Abstract: An array substrate includes a unit pixel group having first and second sub-pixel rows. The array substrate includes a plurality of gate lines extending along a first direction and adjacent to each other on a base substrate, a plurality of gate electrodes electrically coupled to the gate lines, a plurality of semiconductor patterns overlapping the gate electrodes, a plurality of data lines extending along a second direction and electrically coupled to first portions of the semiconductor patterns, a plurality of drain electrode patterns electrically coupled to second portions of the semiconductor patterns, and a plurality of pixel electrodes electrically coupled to the drain electrodes. The second portion of the semiconductor pattern spaced from the first portion thereof. The gate lines and the data lines are bent. Sub-pixels in the first sub-pixel row have opening areas that are different in size than that of sub-pixels in the second sub-pixel row.

Abstract: A thin film transistor array substrate includes: a driving thin film transistor including an active layer having a bent shape, where the active layer includes: a first active pattern extending substantially in a first direction; and a second active pattern extending substantially in a second direction perpendicular to the first direction and connected to the first active pattern, and a gate electrode disposed on the active layer, where gate electrode overlaps the first active pattern and exposes the second active pattern; and a capacitor including a first electrode defined by the gate electrode of the driving thin film transistor, and a second electrode disposed on the first electrode, where the second electrode overlaps substantially an entire surface of the first electrode.

Abstract: A liquid crystal display device having a built in touch screen including a first substrate having pixel units comprising: a plurality of pixels displaying an image and sensor regions having light sensors formed adjacent to the corresponding pixel units to sense a position of a contacted object; a second substrate disposed on the first substrate, comprising: color filters formed on regions corresponding to the pixel units and first black matrices formed on regions corresponding to the sensor regions of the pixel units; a liquid crystal layer interposed between the first substrate and the second substrate; and a backlight assembly disposed on a bottom portion of the first substrate and providing light to the first substrate and the second substrate. The liquid crystal display device with the built in touch screen determines a point of contact on the touch screen.