Abstract: A sweep voltage generator and a display panel are provided. The sweep voltage generator includes an output node, a current generating block and a voltage regulating block. The output node is used to provide a sweep signal. The current generating block is coupled to the output node, includes a detection path for detecting an output load variation on the output node, and adjusts the sweep signal provided by the output node based on the output load variation. The voltage regulating block is coupled to the output node for regulating a voltage of the output node.

Abstract: A pixel circuit includes: a first transistor including a gate electrode connected to a first node, a source electrode connected to a first power line, and a drain electrode connected to a second power line; a light emitting element connected between the first transistor and the first or second power line; a second transistor connected between a data line and the first node, and including a gate electrode connected to a first scan line; a first capacitor connected between the first node and the source electrode of the first transistor; a third transistor connected between the first node and the first power line, and including a gate electrode connected to a second node; a fourth transistor connected between the second node and the data line, and including a gate electrode connected to a second scan line; and a second capacitor connected between the second node and a first control line.

Abstract: Provided are a light emitting device and manufacturing method thereof, a backlight module, a display panel and a display device. The manufacturing method includes: providing a substrate; forming a circuit layer on a side of the substrate; providing at least one switching element and at least one light emitting element; and electrically connecting the switching element and the light emitting element to the circuit layer. The circuit layer includes a first power signal line, a second power signal line, and a pulse width modulation signal line; the switching element includes a control terminal, a first terminal and a second terminal; the light emitting element is electrically connected between the first terminal and the first power signal line, or the light emitting element is electrically connected between the second terminal and the second power signal line.

Abstract: A pixel connected to a first scan line includes a light-emitting element including an anode and a cathode, a first transistor including a first electrode, a second electrode, and a gate electrode connected to a first node, a first capacitor connected between the first node and a second node, a second transistor connected between the second electrode of the first transistor and the first node including a gate electrode connected to the first scan line, a third transistor including a first electrode, a second electrode connected to the second node, and a gate electrode connected to the first scan line, and a fourth transistor including a first electrode connected to a first driving voltage line, a second electrode connected to the first electrode of the first transistor, and a gate electrode connected to the first scan line.

Abstract: An image forming apparatus includes: an apparatus body having a receiving surface on which a document is placed and that is provided on a rear portion of an upper surface, the rear portion being positioned behind a front end of the upper surface; a reading unit provided on the rear portion such that the reading unit is openable and closable, the reading unit reading an image on the document while transporting the document; an inclined surface on which no operation unit is disposed, the inclined surface being continuously inclined downward from a front end of the rear portion to the front end of the upper surface; and a projecting portion provided on a front portion of the apparatus body at a position on a first side of the inclined surface in a left-right direction, the projecting portion projecting forward and upward with respect to the inclined surface.

Abstract: A pixel includes a display element, a driving transistor, a storage capacitor, a scan transistor, and a gate control circuit. The display element may emit light for an emission period, wherein the display element includes an anode and a cathode. The driving transistor may control an amount of a driving current flowing through the display element, wherein the driving transistor includes a first gate and a second gate. The storage capacitor is electrically connected to the first gate of the driving transistor. The scan transistor may be turned on for a data-write period for transferring a data voltage to the driving transistor. The lower gate control circuit may electrically connect the second gate of the driving transistor to the anode of the display element for the emission period, and may apply a bias voltage to the second gate of the driving transistor for the data-write period.

Abstract: A display apparatus includes: a plurality of pixel circuits at a display area, the display area having a non-quadrangular shape; a first signal line extending on the display area in a first direction, and electrically connected to a first pixel circuit from among the plurality of pixel circuits; a first voltage line extending on the display area in the first direction; a first load compensation capacitor adjacent to an end portion of the first signal line and an end portion of the first voltage line; a test circuit outside the display area; an output line electrically connected to the test circuit; and a connection portion configured to electrically connect the output line, the first signal line, and an electrode of the first load compensation capacitor to each other.

Abstract: An inverter circuit, a gate driver using the same, and a display device according to an embodiment are discussed. The inverter circuit can include a first transistor connected between a high potential voltage line and a first node; a second transistor having a gate connected to the first node and turned on according to a voltage of the first node to charge a second control node to a high potential voltage of the high potential voltage line; a third transistor having a gate connected to a first control node, a first electrode connected to the first node, and a second electrode connected to the second control node; and a fourth transistor having a gate connected to the first control node, a first electrode connected to the second control node, and a second electrode connected to a low potential voltage line.

Abstract: An electronic sign assembly for communicating a message of gratitude to a motorist on a roadway includes a projector that is integrated into a vehicle such that the projector is directed toward a rear window of the vehicle. The projector projects an image onto the rear window to facilitate the image to be visible to a motorist driving behind the vehicle on a roadway. The projector projects a plurality of beams of light thereby facilitating the image to comprise the words “thank you” to express gratitude to the motorist behind the vehicle for allowing the vehicle to change lanes. A control is positioned within the vehicle thereby facilitating the control to be accessible to a driver of the vehicle. The control is in communication with the projector for turning the projector on and off.

Abstract: A display device includes a sensing circuit and a controller which selects a pixel row in a frame period. A vertical blank period of the frame period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of a pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller calculates a threshold voltage parameter and a mobility parameter based on the first and second source voltages, predicts a saturated source voltage of the driving transistor based on the threshold voltage parameter and the mobility parameter, and calculates a threshold voltage of the driving transistor based on the saturated source voltage.

Abstract: A display device of the present disclosure comprises pixels arranged in a display, a data accumulator for accumulating first image data for an N-th frame output through the display, a data receiver for receiving second image data for an (N+1)th frame to be output through the display, and an afterimage controller for correcting a current value corresponding to a grayscale value of the second image data through a convolution operation between a filter, which is set based on the first image data, and the second image data.

Abstract: Provided is a display substrate including a base substrate, a plurality of pixel units, at least one first power line, a barrier structure, an adapting structure, a cathode layer and a first organic pattern. By covering at least part of the second side face of the adapting structure with the first organic pattern, the risk of the second side face of the adapting structure being eroded by moisture or oxygen due to the etching defects can be reduced.

Abstract: Methods and systems are disclosed for performing operations for providing a shared augmented reality experience in a video chat. A video chat can be established between a plurality of client devices. During the video chat, videos of users associated with the client devices can be displayed. During the video chat, a request from a first client device to activate a first AR experience can be received, and in response, and body parts of users depicted in the videos are modified to include one or more AR elements associated with the first AR experience.

Abstract: A semiconductor light-emitting device includes a junction or active layer between doped semiconductor layers coextensive over a contiguous device area, corresponding sets of electrical contacts connected to the semiconductor layers, and multiple nanostructured optical elements at a surface of one semiconductor layer opposite the other semiconductor layer. Composite electrical contacts of one set include a conductive layer, a transparent dielectric layer between the conductive and semiconductor layers, and vias through the dielectric layer connecting the conductive and semiconductor layers. The nanostructured elements redirect light, propagating laterally in optical modes supported by the semiconductor layers, to exit the device. The composite electrical contacts can be independent and define independently addressable pixel areas of the device. The nanostructured elements and thin semiconductor layers can yield high contrast between adjacent pixel areas without trenches between them.

Abstract: A smart lamp system and method for monitoring a status of LEDs. The system can provide LED status monitoring using a logic controller communicating with at least one strip of LEDs. The system can utilize the logic controller to assign a unique identifier (ID) to the at least one strip of LEDs based on a physical position of a plurality of dual-inline package (DIP) switches incorporated within a smart lamp housing. The system can provide a hardware architecture to interface the logic controller with a power-line communication (PLC) transceiver. The system can establish a communication protocol between the PLC transceiver and a PLC receiver to efficiently communicate the statuses of the LEDs. The logic controller can generate a payload including a binary representation of the unique ID of the smart lamp and the statuses of the LEDs and transmit the payload to the PLC transceiver.

Abstract: A display device and a display method are provided. The display device includes a display mechanism and a motion mechanism. The display mechanism includes a plurality of first display groups, a plurality of second display groups, and a plurality of third display groups arranged along a first direction. The motion mechanism is respectively connected to the first display groups, the second display groups, and the third display groups, and is configured to guide the first display groups, the second display groups, the third display groups to move along the first direction.

Abstract: A display system includes: a host processor configured to compensate at least one set of frame data based on at least one set of panel map data including a plurality of offset values corresponding to a plurality of pixels of a display panel, generate at least one set of compensated frame data, and output the compensated frame data; and a display driver integrated circuit configured to receive the compensated frame data from the host processor, and control the display panel such that at least one frame image corresponding to the compensated frame data is displayed on the display panel.

Abstract: Provided is a display device, which includes: a reference voltage line formed along a circular outer line and configured to provide a reference voltage; a first reference voltage auxiliary line electrically connected to the reference voltage line and formed to be parallel with a predetermined interval; and a conductive line forming a contact with the reference voltage line and the first reference voltage auxiliary line and configured to provide the reference voltage to a cathode.

Abstract: A pixel lamp of a motor vehicle emanates light based on a control signal that represents an image sequence. A respective individual image from the image sequence corresponds to a respective light distribution currently needing to be provided by the pixel lamp. The route is captured by use of a vehicle camera, and the camera data are evaluated and the control signal is provided based on an ascertained advisory route accoutrement. The image sequence is provided at an image sequence frequency of greater than 24 Hz and includes at least one reference image for uniformly lighting the route, the vehicle camera is synchronized to the reference image, the advisory route accoutrement and information data associated with the advisory route accoutrement are ascertained from the provided camera data, the associated information data are compared with data of a database, and the control signal is ascertained based on the comparison.

Abstract: A pixel circuit includes a first switch element turned on by a gate-on voltage of a first scan pulse to apply a data voltage to a first node; a second switch element turned on by a gate-on voltage of a second scan pulse to connect a second node to a third node; a third switch element turned on by a gate-on voltage of a light-emitting control pulse to apply a reference voltage to the first node; a fourth switch element turned on by the gate-on voltage of the light-emitting control pulse to connect the third node to a fourth node; and a fifth switch element turned on by a gate-on voltage of the second scan pulse to apply the reference voltage to the fourth node. A voltage higher than or equal to the pixel driving voltage is applied to the third node before generation of the first scan pulse.

Abstract: Techniques are disclosed for systems and methods to detect and/or classify a vehicle occupant, such as a passenger seated within the cockpit of a vehicle. An occupant classification system includes an occupant weight sensor, an occupant presence sensor, and a logic device configured to communicate with the occupant weight sensor and the occupant presence sensor. The logic device is configured to receive occupant weight sensor signals from the occupant weight sensor and occupant presence sensor signals from the occupant presence sensor, determine an estimated occupant weight and an occupant presence response based, at least in part, on the occupant weight sensor signals and the occupant presence sensor signals, and determine an occupant classification status corresponding to the passenger seat based, at least in part, on the estimated occupant weight and/or the occupant presence response.

Abstract: An electroluminescent display panel and a display device are provided. In the embodiments of the disclosure, a photosensitive component is arranged in the photosensitive component arranging region. The extending line of at least one line is arranged in the photosensitive component arranging region so that the orthographic projection of the extending line on the light-emitting surface of the electroluminescent display panel overlaps with the first pixels in the first and second specific pixel groups in the photosensitive component arranging area; the first and second specific pixel groups include respective first pixels located in first straight lines of the second pixels correspondingly connected to two adjacent signal lines, the first and second specific pixel groups are adjacent in the second direction, and the first straight lines extend in the first direction.

Abstract: A display substrate and a display device. The display substrate includes a pixel circuit in which the driving circuit controls a driving current for driving the light emitter element to emit light; the first light emission control circuit applies a first voltage to a first terminal of the driving circuit in response to a first light emission control signal; the second light emission control circuit applies the driving current to the light emitter element in response to a second light emission control signal; the first reset circuit applies a first reset voltage to the control terminal of the driving circuit in response to a first reset signal; the first reset signal and the first light emission control signal are simultaneously turn-on signals during a period; the first light emission control line and the second light emission control line extend along a first direction and are arranged in a second direction.

Abstract: A display apparatus includes a display panel in which a plurality of pixels and a plurality of data lines and a plurality of sensing lines connected to the pixels are arranged, a first driving circuit connected to data lines and sensing lines arranged in a first pixel column and a second pixel column adjacent to the first pixel column, and a second driving circuit connected to data lines and sensing lines arranged in a third pixel column adjacent to the second pixel column and a fourth pixel column adjacent to the third pixel column.

Abstract: The present disclosure relates a display device and a method of driving the same. For example, a display device according to one or more embodiments of the present disclosure includes pixels, a sensing unit, and a compensator calculating a current compensation value for each of the pixels based on a sensing value of the sensing unit, a first pixel among the pixels includes at least two light emitting diodes connected in series with a first transistor that controls a current, the sensing unit outputs a sensing value by sensing a voltage of the light emitting diodes in a sensing period, and the compensator increases the current compensation value for the first pixel as a voltage of the second node decreases in the sensing period.

Abstract: An organic light emitting diode display device includes a substrate having an emitting area and a non-emitting area. An insulating layer is on the substrate, and the insulating layer includes a plurality of convex portions, a plurality of connecting portions and at least one wall in the emitting area. A height of the at least one wall is greater than a height of the plurality of convex portions. A first electrode is on the substream, emitting layer is on the first electrode, a second electrode is on the emitting layer. The first electrode, the emitting layer and the second electrode constitute a light emitting diode.

Abstract: An example circuit includes a substrate having a plurality of scan lines substantially orthogonal to a virtual centerline of the substrate. The circuit also includes a first driver integrated circuit (IC) on the substrate, the first driver IC including: a set of line switches coupled to a first set of the plurality of scan lines along a side of the first driver IC nearest the virtual centerline; a data output and a register. The circuit also includes a second driver IC on the substrate, the second driver IC including: a set of line switches coupled to a second set of the plurality of scan lines along a side of the second IC nearest the virtual centerline; and a data input coupled to the data output of the first driver IC.

Abstract: An organic light-emitting diode (OLED) display may have an array of organic light-emitting diode pixels that each have OLED layers interposed between a cathode and an anode. Voltage may be applied to the anode of each pixel to control the magnitude of emitted light. The conductivity of the OLED layers may allow leakage current to pass between neighboring anodes in the display. To reduce leakage current and the accompanying cross-talk, the display may include active and/or passive leakage-mitigating structures. The passive leakage-mitigating structures may have an undercut that causes discontinuities in the overlying OLED layers. Active leakage-mitigating structures may include a conductive layer (e.g., a conductive ring) that drains leakage current to ground. Alternatively, the active leakage-mitigating structures may include a gate electrode modulator with a variable voltage that stops the current flow laterally.

Abstract: In view of the problem that a reduced thickness of an EL film causes a short circuit between an anode and a cathode and malfunction of a transistor, the invention provides a display device that has a light emitting element including an electrode and an electroluminescent layer, a wire electrically connected to the electrode of the light emitting element, a transistor provided with an active layer including a source, a drain and a channel forming region, and a power supply line electrically connected to one of the source and the drain of the transistor, wherein the wire is electrically connected to the other of the source and the drain of the transistor, and the width of a part of the electrode in the vicinity of a portion where the electrode is electrically connected to the wire is smaller than that of the electrode in the other portion.

Abstract: A driving circuit of a light-emitting device, a backlight module and a display panel are disclosed in the present disclosure. The driving circuit of the light-emitting device includes a light-emitting device, a driving transistor, a data signal writing module, a first power signal writing module, a second power signal writing module, a light-emitting control module, and a storage module.

Abstract: A display includes subpixel emissive areas of first, second, and third colors arranged in an array that includes rows and columns. The display also includes scan lines, column lines, and electronic subpixel circuits arranged in the array, with each subpixel circuit in a column of the array being electrically connected to a same column line and each electronic subpixel circuit configured for receiving electronic signals from a scan line and from a column line and for converting the received signals into a current signal provided to one of the subpixel emissive areas to drive light emission from the subpixel emissive area. The display further includes demultiplexer (DEMUX) switches, where every other column line of the columns lines is configured to be connected to at least two outputs from a column line driver through the DEMUX switches.

Abstract: Provided are a display panel and a manufacturing method thereof, and a display device. At least one sub-pixel comprises a light emitting element; a first transistor comprising a first active layer comprising first and second electrode regions connected to data line and power line respectively; a capacitor; a second transistor comprising a second active layer; a third transistor comprising a third gate connected to a reset line, and a third active layer comprising a third channel region. Orthographic projections of the power line, the reset line, the third channel region and the data line are first, second, third and fourth projections respectively. The region of first, second, and third projections overlapping with each other is first region, and regions of first projection overlapping with second projection and not overlapping with third projection comprise a third region and a second region having an area not smaller than the third region.

Abstract: Provided are a display panel, a driving method, and a display device. The display panel includes: a gate driving circuit, a pixel driving circuit, and a light-emitting component. The pixel driving circuit includes a driving transistor, a data writing module, a threshold compensation module, and a light-emitting control module. A transistor in the threshold compensation module is a P-type transistor and a transistor in the light-emitting control module is an N-type transistor, or the transistor in the threshold compensation module is an N-type transistor and the transistor in the light-emitting control module is P-type transistor. A control terminal of the threshold compensation module and a control terminal of the light-emitting control module are electrically connected to a same gate driving circuit.

Abstract: A display device may include a first scan connection line connecting a first scan line connected to a first pixel and a first scan output transistor, a first sensing connection line connecting a first sensing line connected to the first pixel and a first sensing output transistor, the first sensing connection line crossing and overlapping the first scan connection line, a second sensing connection line connecting a second sensing line connected to a second pixel adjacent to the first pixel in a first direction and a second sensing output transistor, and a second scan connection line connecting a second scan line connected to the second pixel and a second scan output transistor, the second scan connection line crossing and overlapping the second sensing connection line.

Abstract: An illumination device includes a support section, a heatsink coupled above the support section and including a plurality of flat vertical exterior surfaces, a driver housing coupled above the heatsink, a plurality of light source modules coupled to the exterior surfaces of the heatsink, and a plurality of nano-optical lenses coupled to the light source modules to direct light from the light. source modules to sub-fields of illumination disposed horizontally below. The illumination device is mounted above ground and configured for uniformly illuminating the sub-fields of illumination without direct glare.

Abstract: The present invention relates to a system comprising an electronic apparatus which comprises: —an electronic device comprising: —a gate electrode (G, BE); —a dielectric (D) arranged over the gate electrode (G, BE); and —a charge sensing structure (CE) with a 2-dimensional charge sensing layer to provide a gate capacitance (Cg) between the charge sensing structure (CE) and the gate electrode structure (G, BE) and a quantum capacitance (Cq) resulting in a total capacitance (Ctot); —a voltage detector to detect an output voltage (Vo) stored in the total capacitance (Ctot). The system further comprises means to apply a gate voltage (Vg) to the gate electrode structure (G, BE) selected to: —make the device operate around most sensitive point of fermi level of the charge sensing structure (CE); and —tune the quantum capacitance (Cq). The present invention also relates to an electronic apparatus adapted to allow the tuning of its quantum capacitance.

Abstract: A display device includes a plurality of subpixels. The plurality of subpixels include a first subpixel including a first light-emitting layer, and a first subpixel circuit, a second subpixel including a second light-emitting layer, and a second subpixel circuit, a third subpixel including a third light-emitting layer, and a third subpixel circuit, and a fourth subpixel including a fourth light-emitting layer, and a fourth subpixel circuit. An area of an opening exposing a first electrode in the first subpixel is larger than an area of the opening exposing the first electrode in each of the second subpixel, the third subpixel, and the fourth subpixel. A plurality of light emission control lines include a first light emission control line connected to the first subpixel circuit and the third subpixel circuit, and a second emission control line connected to the second subpixel circuit and the fourth subpixel circuit.

Abstract: In an image display method, a backlight is divided into first areas in a first direction. Each of the first areas includes light-emitting regions. A liquid crystal panel is divided into second areas in the first direction. In the method, a first operation to cause light to be emitted from the light-emitting regions at respective intensity in accordance with frame image data is performed sequentially with respect to each of the first areas. Further, a second operation to apply voltages to the pixels at respective levels in accordance with the frame image data is performed sequentially with respect to each of the second areas. A timing at which the first operation with respect to each of the first areas is started is delayed from a timing at which the second operation with respect to a corresponding one of the second areas is started by a predetermined interval.

Abstract: A pixel driving circuit includes: a driving sub-circuit configured to supply a driving signal to an element to be driven; a detection sub-circuit electrically connected to a detection control signal terminal and a detection node and configured to detect a voltage value of the detection node in response to a detection control signal received at the detection control signal terminal. The detection node is equivalent to a point on a connection line between the driving sub-circuit and the element to be driven.

Abstract: A display device according to an example embodiment includes a display portion displaying an image, and a sense portion that is disposed over one side of the display portion, and senses an external input, wherein the sense portion includes: at least one of first sense electrodes receiving a first sense signal that is changed in response to the external input, at least one of second sense electrodes that are disposed at a distance from the first sense electrodes, wherein the first sense electrodes are disposed between the second sense electrodes, and at least one of compensation electrode that are disposed spaced apart from and between the first sense electrodes, and to which a compensation signal is applied, wherein the compensation signal and the first sense signal are inverted in phase.

Abstract: A spliced micro light-emitting-diode display panel includes multiple circuit boards spliced with each other and multiple micro light-emitting-diode modules. Each circuit board includes at least one driver IC. The micro light-emitting-diode modules are disposed separately on each circuit board and are electrically connected to the driver IC. Each micro light-emitting-diode module includes multiple light-emitting-diode units arranged in an array. On each circuit board, the driver IC drives the light-emitting-diode units of the micro light-emitting-diode modules to emit light. There is a first gap between any adjacent two of the light-emitting-diode units on any adjacent two of the circuit boards, and there is a second gap between any adjacent two of the light-emitting-diode units on each micro light-emitting-diode module, and the first gap is smaller than the second gap.

Abstract: An image display method includes: obtaining an image to be displayed in an object to be played; determining a code corresponding to the image to be displayed; and controlling a display device to play the object to be played and output a light signal corresponding to the code when the image to be displayed is displayed.

Abstract: A display pixel is provided that is operable to support hybrid compensation scheme having both in-pixel threshold voltage canceling and external threshold voltage compensation. The display may include multiple p-type silicon transistors with at least one n-type semiconducting-oxide transistor and one storage capacitor. An on-bias stress phase may be performed prior to a threshold voltage sampling and data programming phase to mitigate hysteresis and improve first frame response. In low refresh rate displays, a first additional on-bias stress operation can be performed separate from the threshold voltage sampling and data programming phase during a refresh frame and a second additional on-bias stress operation can be performed during a vertical blanking frame. The display pixel may be configured to receive an initialization voltage and an anode reset voltage, either of which can be dynamically tuned to match the stress of the first and second additional on-bias stress operations to minimize flicker.

Abstract: A light emitting substrate, a method of driving a light emitting substrate, and a display device are provided. The light emitting substrate includes a plurality of light emitting units arranged in an array. Each light emitting unit includes a driving circuit, a plurality of light emitting elements, and a driving voltage terminal. The plurality of light emitting elements are sequentially connected in series and connected between the driving voltage terminal and the output terminal of the driving circuit. The driving circuit is configured to output a relay signal through the output terminal in a first period according to a first input signal received by the first input terminal and a second input signal received by the second input terminal, and supply a driving signal to the plurality of light emitting elements sequentially connected in series through the output terminal in a second period.

Abstract: Light-emitting or light-reflecting displays with enhanced visual and acoustic characteristics, include a display based on light-emitting elements such as light-emitting diodes (LEDs). A LED display or screen with enhanced acoustic characteristics and/or improved visual performance is herewith presented for particular use or application in a studio environment where the quality performance of both image and sound, when being captured by a camera or an audience, is challenged. The use and applications of such display, include systems and methods making use of such display, and more particularly concerning the use and application of such displays in studio environments.

Abstract: A light-emitting display device includes a display panel including a high-potential power voltage line and a low-potential power voltage line and provided with a plurality of pixels each including a driving transistor and an organic light-emitting diode, a timing controller configured to generate N (N being a natural number) sensing images depending on a size of accumulated image data by accumulating image data for each pixel, and to display the display panel of data of at least one sensing image of the N sensing images on the display panel and to obtain an amount of degradation of organic light-emitting diodes in a sensing mode, and a degradation sensing unit configured to estimate the amount of degradation of the organic light-emitting diodes by sensing an electrical physical quantity for each panel or for each region in a panel in a state in which the at least one sensing image is displayed on the display panel, and to provide the amount of degradation of the organic light-emitting diodes to the timing con

Abstract: A display device includes 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 lines

Abstract: A display device includes a power supply generating a first power voltage, a second power voltage, and a third power voltage. The display device further includes a first power line to which the first power voltage is applied, a second power line to which the second power voltage is applied, and a readout line to which the third power voltage is applied. The display device further includes a display panel, which includes a pixel. The pixel includes a light emitting element connected between the first power line and the second power line, and a switching transistor connected between one electrode of the light emitting element and the readout line. The power supply changes a voltage level of the third power voltage based on a total current flowing from the power supply to the display panel according to the first and second power voltages.

Abstract: In an illumination control device, a first effect control unit acquires brightness information corresponding to waveform height for each piece of unit time information when effect information for changing brightness is acquired, acquire reference duty ratios corresponding to the acquired brightness information from color tables corresponding to color information added to the effect information, and output pulse signals of the output duty ratios corresponding to the acquired reference duty ratios. Also, a second effect control unit acquires the color information corresponding to the waveform height for each piece of unit time information when the effect information for changing color is acquired, acquire reference duty ratios corresponding to the brightness information added to the effect information from the color tables corresponding to the acquired color information, and output pulse signals of the output duty ratios corresponding to the acquired reference duty ratios.

Abstract: A pixel includes: a light emitting diode; a first transistor; a first capacitor connected between a first node and a gate electrode of the first transistor; a second transistor including a first electrode electrically connected to the gate electrode of the first transistor, a second electrode and a gate electrode which receives a first scan signal; and a third transistor including a first electrode electrically connected to the second electrode of the second transistor, a second electrode electrically connected to a third voltage line, and a gate electrode which receives a second scan signal. During an initialization period, an initialization voltage provided from the third voltage line is provided to the gate electrode of the first transistor through the third and second transistors, and, when the initialization period is terminated, at least one of the second transistor and the third transistor is turned off.