Abstract: An organic light emitting display (OLED) device includes an organic light emitting diode having an anode and a cathode. The organic light emitting diode is configured to receive a reference voltage. A control transistor includes a first control electrode and a first semiconductor active layer. The control transistor is configured to receive a control signal. A driving transistor includes a second control electrode that is electrically connected to the control transistor, an input electrode that is configured to receive a power voltage, an output electrode that is electrically connected to the anode of the organic light emitting diode, and a second semiconductor active layer that includes a different material from that of the first semiconductor active layer. A shielding electrode is disposed on the second semiconductor active layer, overlapping the driving transistor, and configured to receive the power voltage.

Abstract: There is provided a display device including a substrate, a circuit layer, and an element layer. A display area of the substrate includes a main display area in which emission areas are arranged side by side, and at least one sub-display area surrounded by the main display area. The at least one sub-display area further includes light transmission areas located between the emission areas. The circuit layer includes light-emitting pixel drivers respectively electrically connected to the light-emitting elements of the element layer, data lines transmitting data signals to the light-emitting pixel drivers, first dummy lines extending in a first direction intersecting the data lines, and second dummy lines extending parallel to the data lines and paired with the data lines, respectively. The second dummy lines include reset transmission lines extending from the non-display area to the at least one sub-display area.

Abstract: A gate driver including a plurality of stages, each of the plurality of stages including an eighth transistor connected between a third power input terminal and an output terminal, the eighth transistor including a gate electrode connected to a fourth node, a seventh transistor connected between a second power input terminal and the output terminal, the seventh transistor including a gate electrode connected to a third node, an eleventh transistor connected between the third power input terminal and the fourth node, the eleventh transistor including a gate electrode connected to a first node, a twelfth transistor connected between the first node and the third node, the twelfth transistor including a gate electrode connected to the second power input terminal, and a third capacitor connected between the third power input terminal and the fourth node.

Abstract: A display device includes pixels, and a power supply to supply a first initialization voltage to the pixels through a first initialization power line, and to supply a second initialization voltage to the pixels through a second initialization power line. At least one of the pixels includes a first transistor, a second transistor, a third transistor, and a light emitting element.

Abstract: A pixel includes a pixel circuit and an organic light emitting diode. The pixel circuit has first, second, third, and fourth transistors. The first transistor controls an amount of current flowing from a first driving power supply coupled to a first node to a second driving power supply through the organic light emitting diode. The turns on when a scan signal is supplied to a first scan line. The third transistor turns on when a scan signal is supplied to a second scan line. The fourth transistor turns on when a scan signal is supplied to a third scan line. The first transistor is a p-type Low Temperature Poly-Silicon thin film transistor and the third transistor and the fourth transistor are n-type oxide semiconductor thin film transistors.

Abstract: There is provided a display device including a substrate, a circuit layer, and an element layer. A display area of the substrate includes a main display area in which emission areas are arranged side by side, and at least one sub-display area surrounded by the main display area. The at least one sub-display area further includes light transmission areas located between the emission areas. The circuit layer includes light-emitting pixel drivers respectively electrically connected to the light-emitting elements of the element layer, data lines transmitting data signals to the light-emitting pixel drivers, first dummy lines extending in a first direction intersecting the data lines, and second dummy lines extending parallel to the data lines and paired with the data lines, respectively. The second dummy lines include reset transmission lines extending from the non-display area to the at least one sub-display area.

Abstract: A pixel includes a plurality of transistors and an organic light emitting diode, in which the transistors include a first transistor to control an amount of current flowing to the organic light emitting diode and additional transistors are connected to the first transistor or the organic light emitting diode, the first transistor is a Low Temperature Poly-Silicon (LTPS) thin film transistor, and one or more of the other transistors are oxide semiconductor transistors.

Abstract: A display device includes: a base layer comprising a first portion, a second portion extending from the first portion, and a third portion extending from the second portion; a first light emitting element disposed on the first portion; a first front signal line electrically connected to the first light emitting element and disposed on the first portion; a second front signal line electrically connected to the first front signal line, disposed on the first portion, disposed in a different layer from the first front signal line, and overlapping the first front signal line; a first connection line electrically connected to the first and second front signal lines, disposed on the second portion, and disposed in a different layer from the first and second front signal lines; and a first rear signal line electrically connected to the first connection line and disposed on the third portion.

Abstract: A display panel of an OLED display device includes a first pixel configured to emit first color light, a second pixel configured to emit second color light, and a third pixel configured to emit third color light. Each of the first, second and third pixels includes at least two transistors, at least one capacitor and an organic light emitting diode. At least one of at least two transistors or at least one capacitor included in the third pixel has a size different from a size of a corresponding one at least two transistors or at least one capacitor included in the first pixel or the second pixel.

Abstract: A gate driver includes a stage configured to output a gate signal, the stage including an input part configured to control a voltage of a first node and a voltage of a second node based on signals supplied to a first input terminal and a second input terminal, an output part configured to supply a voltage of a first power source or a voltage of a second power source as the gate signal to an output terminal based on a voltage of a third node and a voltage of a fourth node, a first signal processing part configured to supply the voltage of the second power source to the fourth node based on the voltage of the first node, or to electrically connect the second node and the fourth node through a fifth node based on a signal supplied to a third input terminal, and a second signal processing part including a first transistor connected between the third node and a sixth node to control the voltage of the third node based on an operation of the first transistor.

Abstract: An emissive display device includes: a light emitting diode; an n-type driving transistor comprising a first driving gate electrode, a first electrode receiving a driving voltage, a second electrode transferring an output current to the anode, and a second driving gate electrode; a second transistor connected to a data line; a third transistor configured to connect the first electrode and the first driving gate electrode of the driving transistor; a storage capacitor comprising a first storage electrode and a second storage electrode connected to the first driving gate electrode; a ninth transistor transferring an overlapping electrode voltage to the second driving gate electrode; an overlapping electrode voltage line crossing the data line and receiving the overlapping electrode voltage; and a shielding electrode at an intersection of the data line and the overlapping electrode voltage line and between the data line and the overlapping electrode voltage line.

Abstract: A light emitting display device includes multiple pixels arranged in multiple pixel rows, a first scan signal generator that provides a first scan signal to the pixels in the pixel rows, a second scan signal generator that provides a second scan signal to the pixels in the pixel rows, a third scan signal generator that provides a third scan signal to the pixels in the pixel rows, and a light emission signal generator that provides a light emission signal to the pixels in the pixel rows. Each of the second scan signal generator, the third scan signal generator, and the light emission signal generator provides a same signal to the pixels in two of the pixel rows.

Abstract: A display apparatus includes a substrate including a display area, a peripheral area surrounding the display area, a function-adding area, of which at least a portion is surrounded by the display area, and a detour area disposed between the display area and the function-adding area. The display apparatus includes a plurality of pixel circuits disposed in the display area. A plurality of driving lines are electrically connected to the pixel circuits and extend in a direction in the display area. A first detour line is disposed in the detour area and is electrically connected to a first driving line. A second detour line is disposed in the detour area. The second detour line is electrically connected to a second driving line and is disposed in a different layer from the first detour line.

Abstract: An organic light emitting diode display includes a substrate, a semiconductor layer on the substrate, the semiconductor layer including a doped area and an undoped area, a first insulation layer that covers the semiconductor layer, a first conductor on the first insulation layer, a second insulation layer that covers the first conductor, a second conductor on the second insulation layer, a third insulation layer that covers the second conductor, and a third conductor on the third insulation layer, wherein, in the semiconductor layer that overlaps the first conductor, the doped area is between undoped areas.

Abstract: A flexible display panel and a display apparatus including the flexible display panel are disclosed. The flexible display panel includes an encapsulated panel, a first protective film on one side of the encapsulated panel, and a second protective film on another side of the encapsulated panel. The encapsulated panel includes a flexible panel and a flexible encapsulation member on the flexible panel. The flexible panel includes a first region on a first plane and that includes a display region, and a second region on a second plane that is bent with respect to the first plane and that includes a non-display region. The flexible encapsulation member encapsulates the display region. The display apparatus also includes a support unit for maintaining a shape of the flexible panel.

Abstract: An emission driver includes a plurality of stages. A stage of the plurality of stages receives a start signal, a first clock signal, a second clock signal, a protection signal, a first gate power voltage and a second gate power voltage and outputs an emission signal. The stage of the plurality of stages includes a pull-up switching element connected between a first gate power voltage terminal which receives the first gate power voltage and an emission signal output terminal which outputs the emission signal, a pull-down switching element connected between a second gate power voltage terminal which receives the second gate power voltage and the emission signal output terminal and a protection switching element which applies the first gate power voltage to a control electrode of the pull-down switching element in response to the protection signal.

Abstract: A display device including pixels coupled to first scan lines, second scan lines, emission control lines, and data lines; a first scan driver to supply a scan signal to each of the first scan lines at a first frequency to drive the display device at a first driving frequency, and to supply the scan signal to each of the first scan lines at a second frequency to drive the display device at a second driving frequency lower than the first driving frequency; a second scan driver to supply a scan signal to each of the second scan lines at the first frequency to drive the display device at the first driving frequency, and to supply the scan signal to each of the second scan lines at the second frequency to drive the display device at the second driving frequency; an emission driver to supply an emission control signal to each of the emission control lines at the first frequency; and a data driver to supply a data signal to each of the data lines in response to the scan signal supplied to each of the first scan line

Abstract: A display device includes a pixel electrode; a pixel circuit connected to the pixel electrode; a repair line overlapping at least a part of the pixel circuit; and a shielding line overlapping at least a part of the repair line and connected to a constant power source.

Abstract: A display device includes: a first pixel connected to a first data line and a first scan line; a second pixel connected to the first data line and a second scan line; a first scan driver connected to a first scan start line and the first scan line; and a second scan driver connected to a second scan start line and the second scan line. In a first frame period, the second scan start line is to be suppled with a second scan start signal having a turn-on level, after a first period elapses after a first scan start signal having a turn-on level is supplied to the first scan start line. In a second frame period, a difference between a time at which the first scan start signal having the turn-on level is supplied and a time at which the second scan start signal having the turn-on level is supplied corresponds to a second period. The second period is shorter than the first period.

Abstract: A flat panel display device formed in a pentile structure is provided, which includes a pixel portion and a lighting tester. The pixel portion includes a first pixel column, a second pixel column and a third pixel column. In the first pixel column, first pixels for displaying a first color and second pixels for displaying a second color are alternately arranged in a direction the data lines. In the second pixel column, first and second pixels arranged in reverse order of the first pixel column in a direction parallel to the data lines. In the third pixel column, third pixels for displaying a third color are arranged in a direction parallel to the data lines. The lighting tester applies a first voltage to the first pixel column and applies a second voltage to the second pixel column during a first time period. The lighting tester applies the second voltage to the first pixel column and applies the first voltage to the second pixel column during a second time period.