Abstract: A display device includes a display panel including a pixel and displaying an image in a first mode or a second mode, a source driver applying a data voltage to the pixel, and a scan driver including a plurality of stages and applying a scan signal to the pixel. Each stage receives k clock signals, the k is an integer greater than or equal to 2, the k clock signals are sequentially activated in the first mode to apply the scan signal to the pixel, at least two clock signals among the k clock signals are activated simultaneously in the second mode to apply the scan signal to the pixel, and at least one clock signal among the k clock signals is activated in different periods in a first frame and a second frame following the first frame in the second mode.

Abstract: A thermally conductive material obtained by dispersing a filler in a matrix composed of a resin. The filler includes spherical particles composed of aluminum nitride and plate-like particles composed of boron nitride. The volume ratio of plate-like to spherical particles is, for example, 0.4 to 1.5. The particle diameter ratio of the plate-like to the spherical particles is, for example, 0.05 to 0.5. The volume percent of the filler to the thermally conductive material as a whole is, for example, 73 to 93 vol %. The thermally conductive material that satisfies such conditions can develop remarkably high thermal conductivity. The thermally conductive material can be produced through a preparation step of obtaining a mixture in which spherical particles, plate-like particles, and a resin are present in a mixed manner, and a molding step of forming the mixture into a molded body. The preparation step may be performed in multiple stages.

Abstract: A pixel includes a light-emitting element including a first electrode and a second electrode connected to a low power line which transmits a low power voltage, a pulse width modulator which controls an emission time duration of the light-emitting element based on a data voltage and a sweep signal, and a constant current generator which supplies a driving current having a constant level to the light-emitting element based on a constant current generation voltage. The sweep signal has a first high voltage level in a non-emission period, and is boosted to a second high voltage level, which is higher than the first high voltage level, before decreasing to a low voltage level lower than the first high voltage level in an emission period.

Abstract: A pixel circuit includes: a first transistor comprising a gate electrode connected to a first node, a first electrode connected to a second node, and a second electrode connected to a third node; a second transistor comprising a gate electrode receiving a gate signal, a first electrode receiving a reference voltage or a data signal, and a second electrode connected to the first node; a third transistor comprising a gate electrode receiving a first emission signal, a first electrode receiving an initialization voltage, and a second electrode connected to a fourth node; a fourth transistor comprising a gate electrode receiving the first emission signal, a first electrode receiving a first power voltage, and a second electrode connected to the second node; and a light-emitting element comprising a first electrode connected to the fourth node and a second electrode receiving a second power voltage.

Abstract: A pixel circuit includes a light emitting element, a driving transistor configured to apply a driving current to the light emitting element, a storage capacitor including a first electrode connected to a gate electrode of the driving transistor and a second electrode, and a boost capacitor including a first electrode receiving a gate control signal and a second electrode connected to the gate electrode of the driving transistor. The gate control signal is changed from a first level to a second level at a starting point of a boosting period in a non-emission period, and is changed from the second level to the first level at an ending point of the boosting period.

Abstract: A pixel includes a first transistor including a gate connected to a first node, a first terminal, and a second terminal connected to the second node, a third transistor which connects a sensing line to the second node, a fourth transistor which connects a power line to the first terminal of the first transistor, a first capacitor, and a light-emitting element. A frame period includes an active period and a blank period. The blank period includes a sensing compensation period in which a threshold voltage of the first transistor is stored in the first capacitor, a sensing addressing period in which a sensing data voltage is applied to the first node, and a sensing period in which a sensing current corresponding to the sensing data voltage flows from the power line to the sensing line.

Abstract: Provided is a display device including: a substrate; a thin-film transistor disposed on the substrate; and a light-emitting element electrically connected to the thin-film transistor, wherein the thin-film transistor includes a semiconductor layer and a gate electrode with a first insulating layer between the semiconductor layer and the gate electrode, and the gate electrode includes an opening exposing a portion of the first insulating layer at a position at which the gate electrode overlaps the semiconductor layer.

Abstract: Provided is a display device including a display panel including a plurality of pixels, a data driver which provides a data voltage to each of the plurality of pixels, a scan driver which provides a scan signal to each of the plurality of pixels, a sweep driver which provides a sweep signal to each of the plurality of pixels, and a controller. Each pixel includes a light emitting element, a pulse width modulation circuit which receives the data voltage in response to the scan signal, and generates a pulse width modulation signal based on the data voltage and the sweep signal, and a current generation circuit which provides a current to the light emitting element based on the pulse width modulation signal. A slope of the sweep signal is changed in a plurality of modes having different maximum luminances.

Abstract: An electronic device includes a stage. The stage includes a node control circuit; a first transistor connected between a first power line and a first output node; a first capacitor connected between a gate electrode of the first transistor and the first output node; a second transistor connected between a first clock line and a second output node; a second capacitor connected between a gate electrode of the second transistor and the second output node; a third transistor connected between a second clock line and a third output node; a third capacitor connected between a gate electrode of the third transistor and the third output node; and a fourth transistor connected between a first node and the gate electrode of the first transistor, and maintained in a turn-on state in response to a first voltage.

Abstract: A pixel circuit includes a first transistor including a first control electrode connected to a first node, a second control electrode connected to a second node, a first electrode connected to a third node and a second electrode connected to a fourth node, a second transistor, a third transistor, a fourth transistor including a control electrode, a first electrode and a second electrode connected to the third node, a fifth transistor including a control electrode, a first electrode receiving an initialization voltage and a second electrode connected to the fourth node, a first capacitor including a first electrode connected to the first node and a second electrode connected to the fourth node, a second capacitor including a first electrode connected to the second node and a second electrode connected to the fourth node and a light emitting element.

Abstract: A pixel of a display device includes a first transistor including a gate connected to a first node, a first terminal receiving a first power supply voltage and a second terminal connected to a second node, a capacitor disposed between a third node and the second node, a second transistor including a gate receiving a write signal, a first terminal connected to a data line and a second terminal connected to the third node, a third transistor including a gate receiving the write signal, a first terminal receiving a reference voltage and a second terminal connected to the first node, a fourth transistor including a gate receiving an emission signal, a first terminal connected to the first node and a second terminal connected to the third node, and a light-emitting element including an anode connected to the second node and a cathode receiving a second power supply voltage.

Abstract: A pixel circuit may include a first transistor including a control electrode connected to a first node, a first electrode receiving a first power supply voltage, and a second electrode connected to a second node, a second transistor including a control electrode receiving a writing gate signal, a first electrode receiving a data voltage, and a second electrode connected to a third node, a third transistor including a control electrode receiving a compensation gate signal, a first electrode connected to the first node, and a second electrode connected to the second node, a fourth transistor including a control electrode receiving an initialization gate signal, a first electrode connected to the second node, and a second electrode receiving an initialization voltage, a holding capacitor including a first electrode connected to the third node and a second electrode connected to the first node, and a light emitting element.

Abstract: A display device includes a display panel including pixel circuits and a display panel driver. The pixel circuit includes a first transistor including a control electrode connected to a first node, a first electrode receiving a first driving voltage and as second electrode connected to a second node, a second transistor applying a data voltage to a third node in response to a write gate signal, a third transistor connecting the first node and the second node in response to a compensation gate signal, a first capacitor and a light emitting element including a first electrode connected to the second node and a second electrode receiving a second driving voltage. The first driving voltage has a driving-high voltage or a driving-low voltage, and the second driving voltage has the driving-high voltage and the driving-low voltage. The compensation gate signal may be globally applied.

Abstract: A display device includes a display panel having a plurality of pixel rows arranged in a first direction and each including a plurality of pixels, a first gate driver including a first stage having a first gate signal as a first output to each of the plurality of pixel rows, and a second gate driver including a second stage having a second gate signal as a second output to each of the plurality of pixel rows, the second stage being alternately arranged with the first stage in the first direction. The first gate driver and the second gate driver share a first clock signal. Each of the first stage and the second stage is connected to at least four pixel rows among the plurality of pixel rows.

Abstract: A display device includes: a plurality of pixels disposed in a display area; a plurality of first voltage lines electrically connected to the plurality of pixels, the plurality of first voltage lines including a plurality of first common voltage lines extending in a first direction and a plurality of second common voltage lines extending in a second direction intersecting the first direction; and a plurality of second voltage lines electrically connected to the pixels, the plurality of second voltage lines including a plurality of first driving voltage lines extending in the first direction and a plurality of second driving voltage lines extending in the second direction. The number of the first common voltage lines are greater than the number of the first driving voltage lines.

Abstract: A pixel circuit includes a first driving transistor including a control electrode connected to a first node, a first electrode and second electrode connected to a second node and third node; a writing transistor for applying a data voltage to the second node; a first and second initialization transistor configured to apply an initialization voltage to the first node and the third node; a second driving transistor including a control electrode connected to a fourth node, a first electrode receiving a first power voltage, and a second electrode connected to a fifth node; a third initialization transistor for applying the initialization voltage to the fourth node; a first capacitor configured to apply a sweep signal to the first node; a second capacitor including a first and second electrode connected to the third node and fourth node; and a light emitting element configured to emit light based on the driving current.

Abstract: Provided is a display device including a display panel including a plurality of pixels, a data driver which provides a data voltage to each of the plurality of pixels, a scan driver which provides a scan signal to each of the plurality of pixels, a sweep driver which provides a sweep signal to each of the plurality of pixels, and a controller. Each pixel includes a light emitting element, a pulse width modulation circuit which receives the data voltage in response to the scan signal, and generates a pulse width modulation signal based on the data voltage and the sweep signal, and a current generation circuit which provides a current to the light emitting element based on the pulse width modulation signal. A slope of the sweep signal is changed in a plurality of modes having different maximum luminances.

Abstract: A pixel includes a light-emitting element including a first electrode and a second electrode connected to a low power line which transmits a low power voltage, a pulse width modulator which controls an emission time duration of the light-emitting element based on a data voltage and a sweep signal, and a constant current generator which supplies a driving current having a constant level to the light-emitting element based on a constant current generation voltage. The sweep signal has a first high voltage level in a non-emission period, and is boosted to a second high voltage level, which is higher than the first high voltage level, before decreasing to a low voltage level lower than the first high voltage level in an emission period.

Abstract: A semiconductor device includes a first impurity region, a second impurity region spaced from the first impurity region by a first length in a first direction, and a first channel region having a third length longer than the first length between the first and second impurity regions, a convex portion in a second direction between the first and second impurity regions, a third impurity region, a fourth impurity region spaced from the third impurity region by a second length in the first direction, and a second channel region having a fourth length longer than the second length between the third and fourth impurity regions, a concave portion opposite to the second direction between the third and fourth impurity regions, a first gate electrode above the first channel region and covering the convex portion, and a second gate electrode above the second channel region and filling the concave portion.

Abstract: A display apparatus includes: a first substrate; a scan line extending in a first direction; a data line that extends in a second direction; a sensing line that extends in the second direction; a switching transistor electrically connected to the scan and the data lines; a driving transistor electrically connected to the switching transistor; a sensing transistor electrically connected to the driving transistor and electrically connected to the sensing line; a first insulating layer between the first substrate and a sensing semiconductor layer of the sensing transistor; a via insulating layer provided on the switching transistor, the driving transistor, and the sensing transistors; and a light-emitting diode including a first electrode, an emission layer, and a second electrode, the first electrode provided on the via insulating layer, wherein the sensing line is below the first insulating layer and overlaps the first electrode of the light-emitting diode.