Abstract: A display device includes a display unit, a degradation compensator and a data driver. The display unit includes first and second pixels disposed in first and second regions, respectively. The degradation compensator generates a first compensated grayscale value by compensating a first grayscale value for the first pixel based on a first degradation curve and generates a second compensated grayscale value by compensating a second grayscale value for the second pixel based on a second degradation curve, where the first and second degradation curves define luminance reduction rates according to accumulated usage time of the first and second pixels, respectively. A data driver generates first and second data signals based on the first and second compensated grayscale values, respectively, and supplies the first and second data signals to the first and second pixels, respectively. A transmittance of the second region is greater than a transmittance of the first region.

Abstract: A touch screen panel and display device having the same are disclosed. In one aspect, the touch screen panel includes a base layer, a noise shielding layer formed over a base layer, and a plurality of first touch sensors formed over the base layer. The touch screen panel further includes a plurality of second touch sensors formed over the base layer and electrically insulated from the first touch sensors. The second touch sensors cross the first touch sensors. The touch screen panel also includes a first pad part electrically insulated from and overlapping the noise shielding layer, wherein the first pad part comprises a plurality of signal pads. The touch screen panel further includes a plurality of touch signal lines respectively electrically connecting the signal pads to the first and second touch sensors.

Abstract: External compensation of display panels may employ measurement or sensing circuitry configured to measure the output of a pixel and compensate for variations. Due to effects from the sensing circuitry, a mismatch between a target current and the actual current in the pixel may occur. Systems and methods that compensate for the effects from sensing circuitry and reduce or mitigate the mismatch are described. Systems and methods described herein include compensation circuitry that is capable of employing correction factors to compensate for the effects due to the presence of sensing circuitry. Methods for determining the correction factor are also described.

Abstract: An electroluminescent display device includes a display panel including pixels, a storage circuit, a luminance compensation circuit and a data driver. The storage circuit stores information on a leakage curve indicating a luminance change value of a target pixel according to a change of an input pixel value of a neighboring pixel, the plurality of pixels including the target pixel and the neighboring pixel. The luminance compensation circuit receives input pixel values corresponding to the pixels and generates compensated pixel values respectively corresponding to the pixels by compensating for lateral leakage based on the leakage curve, where the lateral leakage is caused by leakage currents through a common conduction layer of the pixels. The data driver drives the pixels based on the compensated pixel values. The exact (or close) luminance of the input image is realized by compensating for the luminance distortion.

Abstract: A display device including a display panel including a planar portion and a curved portion extending from the planar portion, a controller to provide a data signal representing an image to be displayed on the planar portion and the curved portion to the display panel, in which the controller is configured to provide a data signal representing an image that is reduced at a greater extent to a portion of the curved portion that is disposed further away from the planar portion, and the display device is a head-mounted display device.

Abstract: A driving circuit includes a driving transistor, a capacitor, a reset circuit, a touch sensing electrode, a sensing circuit, and a read circuit. The capacitor is electrically coupled to a gate terminal of the driving transistor. The reset circuit is electrically coupled to the gate terminal of the driving transistor, and the reset circuit is configured to reset the voltage level of the gate terminal of the driving transistor. The sensing circuit is electrically coupled between the touch sensing electrode and the gate terminal of the driving transistor, and the sensing circuit is configured to transmit the voltage level of the touch sensing electrode to the gate terminal of the driving transistor. The read circuit is electrically coupled to the driving transistor, and the read circuit is configured to output a touch sensing signal according to the voltage level of the gate terminal of the driving transistor.

Abstract: A display panel of an organic light emitting diode (OLED) display device having a display region includes a plurality of first pixels located at an upper half of the display region, a plurality of second pixels located at a lower half of the display region, a plurality of first data lines extending in a first direction, and coupled to the plurality of first pixels, a plurality of second data lines extending in the first direction, disposed alternately with the plurality of first data lines along a second direction crossing the first direction, and coupled to the plurality of second pixels, and a demultiplexing circuit configured to selectively couple a plurality of data channels of a data driver of the OLED display device to the plurality of first data lines or the plurality of second data lines.

Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a display area where an image is displayed; a peripheral area disposed outside the display area; a hole area disposed within the display area; a hole crack detection line disposed adjacent to the hole area to surround the hole area and having a first end and a second end that is separated from the first end; a first detection line extending from the peripheral area and connected to the hole crack detection line to constitute a first closed circuit; a second detection line extending from the peripheral area and connected to the hole crack detection line to constitute a second closed circuit; and a circuit portion connected to the first detection line and the second detection line.

Abstract: A display panel includes first signal lines, second signal lines, first conductive patterns, second conductive patterns, at least one first switching unit and at least one second switching unit. An area of the first signal line is greater than that of the second signal line. Each first signal line is electrically connected to at least one first conductive pattern through at least one first switching unit. Each second signal line is electrically connected to at least one second conductive pattern through at least one second switching unit. The first switching unit includes at least one first thin film transistor, and the second switching unit includes at least one second thin film transistor. A channel width-to-length ratio of each first thin film transistor is greater than that of each second thin film transistor.

Abstract: A pixel includes a capacitor including a first electrode and a second electrode, a first transistor which generates a driving current, a second transistor which applies a data voltage to the first electrode of the capacitor, a third transistor which applies an initialization voltage to the second electrode of the capacitor, a fourth transistor which generates a leakage current in response to a dimming signal, and a light emitting element which emits light based on a residual driving current, where the residual driving current is obtained by subtracting the leakage current from the driving current.

Abstract: The disclosure provides a method of driving a touch panel. The touch panel includes a plurality of touch sensing electrodes and a plurality of display pixels. Each of the plurality of display pixels includes a light emission element and a driving transistor. Each of the touch sensing electrodes is coupled to the light emission element of at least one of the plurality of display pixels. The method includes transmitting a first driving signal to at least one of the touch sensing electrodes served as an electrode of the corresponding light emission element during a touch sensing period, wherein the touch sensing electrode is coupled to a first power receiving terminal of the corresponding display pixel; and transmitting a first power supply voltage to the first power receiving terminal during a display period.

Abstract: A semiconductor device according to an embodiment may include a plurality of light emitting structures, a first electrode disposed around the plurality of light emitting structures, a second electrode disposed on an upper surface of the plurality of light emitting structures, a first bonding pad electrically connected to the first electrode, and a second bonding pad electrically connected to the second electrode. The plurality of light emitting structures may include a first light emitting structure that includes a first DBR layer of a first conductivity type, a first active layer disposed on the first DBR layer, and a second DBR layer of a second conductivity type disposed on the first active layer; and a second light emitting structure that includes a third DBR layer of the first conductivity type, a second active layer disposed on the third DBR layer, and a fourth DBR layer of the second conductivity type disposed on the second active layer.

Abstract: A light emitting device 401 includes a silicon substrate and a light emitting region including a lower electrode, a light emitting layer, and an upper electrode, and an exposure head is provided with a printed board on which light emitting devices 401 are arranged in a staggered form and a circuit portion 602 for controlling, on the basis of image data, a voltage of each of electrodes included in the lower electrode so that the light emitting device layer emits light and is for forming an image with a resolution corresponding to an arrangement interval of the lower electrode with respect to a crossing direction, and the circuit portion 602 is disposed together with the light emitting region on the silicon substrate. Costs on wire bonding and an area of a wiring board can be suppressed.

Abstract: Provided are a display panel, a drive method thereof and a display apparatus. The display panel includes a plurality of scan signal lines, a plurality of data signal lines and a plurality of sub-pixels; at least one sub-pixel includes switch assembly and a display unit, wherein the switch assembly at least includes a control terminal, an input terminal and an output terminal, wherein the input terminal is connected to the data signal line, the output terminal is connected to the display unit, and the control terminal or the input terminal is connected to the scan signal line; the display panel further includes at least one switch control line, which is connected to the control terminal of the switch assembly, and the switch control line is configured to control the input terminal and the output terminal of the switch assembly to be turned on or off.

Abstract: The present disclosure provides a display substrate, a method for driving the same, and a display device. The display substrate includes: a plurality of sub-pixels, a plurality of reset signal lines, a plurality of gate lines, a plurality of light emitting control signal lines, a plurality of data lines, a power signal line structure, an initialization signal line structure, and at least part of the reset signal lines extend along the first direction; the plurality of reset signal lines include a sub-reset signal line corresponding to each sub-pixel, and the sub-reset signal line includes a first reset pattern and a second reset pattern that are coupled to each other, the first reset pattern is located between the substrate of the display substrate and the second reset pattern.

Abstract: An electro-optical device includes a scanning line, a data line intersecting with each other, a pixel circuit which is provided corresponding to the intersection thereof, and a wire. The pixel circuit includes a light emitting element, one transistor which controls a current flowing to the light emitting element, and the other transistor of which conduction state is controlled according to a scanning signal which is supplied to the scanning line between a gate node of the one transistor and the data line. The wire is provided between the data line and the one transistor.

Abstract: The present disclosure provides an array substrate and a method for manufacturing the same, and a display device. The array substrate includes: a base substrate; a photosensitive element located between the base substrate and a light emitting device and configured to sense light emitted from the light emitting device and generate a sensing signal according to the light; a capacitor configured to store the sensing signal; and a sensing transistor located between the base substrate and the photosensitive element and configured to transmit the sensing signal to a sensing line, wherein an orthographic projection of the sensing transistor on the base substrate at least partially overlaps with an orthographic projection of the photosensitive element on the base substrate.

Abstract: An electroluminescent display device comprises a pixel including a plurality of subpixels; a plurality of power lines for providing a power voltage to the plurality of subpixels; a data line for providing data signals to the plurality of subpixels; a plurality of gate lines for providing gate signals to the plurality of subpixels; and a reference node line for connecting a plurality of reference nodes included in the plurality of subpixels, wherein each of the subpixels comprises a light emitting diode and a subpixel driving circuit for controlling light emission of the light emitting diode, and wherein the subpixel driving circuit provides a driving current without including a high potential voltage to the light emitting diode as a reference voltage that is applied from one of the plurality of power lines to the reference node included in the subpixel driving circuit, and some of the plurality of subpixels include a compensation transistor connected to the reference node receiving the reference voltage.

Abstract: A multi-panel organic light emitting display device is disclosed that includes a plurality of display panels coupled to each other. Each of the plurality of display panels includes: a substrate including an active area and a non-active area; and a display unit including an organic light emitting element on the substrate. Each of the plurality of display panels also includes: a plurality of signal lines disposed on the substrate and electrically connected to the display unit; and a plurality of link lines disposed under the substrate. Each of the plurality of display panels further includes a plurality of side lines connecting the plurality of signal lines and the plurality of link lines. Each of the plurality of display panels also includes a driving circuit electrically connected to the plurality of link lines.

Abstract: A display substrate includes a display region, a non-display region at a periphery of the display region, pixel units in the display region and arranged in an array, gate lines extending in a row direction of the array, and data lines extending in a column direction of the array. Each row of pixel units is provided with at least one gate line, and each gate line is coupled to at least a part of the pixel units in a corresponding row. Each column of pixel units is provided with at least two data lines, and each data line is coupled to a part of the pixel units in a corresponding column. Each pixel unit is coupled to one gate line and one data line, and two pixel units in a same column and in two adjacent rows are coupled to different data lines, respectively.

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.

Abstract: The embodiments of present application discloses a display panel and a display apparatus. The display panel includes a pixel circuit including a driving transistor and a data writing module; a data signal line connected to the data writing module and used to provide a data signal to the pixel circuit; and a voltage control module connected to the data signal line; wherein a low-frequency data refresh cycle includes a number of data frames including a data writing frame and n holding frames; in the data writing frame, the data signal line writes the data signal into the driving transistor; in the holding frames, the data signal line does not write the data signal; in first m holding frames, the voltage control module controls the data signal line to be maintained at a first voltage value V1, V1<V2, V2 is a preset data voltage value, and n?m?1.

Abstract: Provided is a display device. The display device comprises a substrate, and a plurality of sub-pixels disposed on the substrate and including alight emitting element and a sub-pixel circuit driving the light emitting element. The sub-pixel circuit comprises a driving transistor controlling a driving current flowing through the light emitting element, a first transistor and a second transistor connected in series between a first node, which is a drain electrode of the driving transistor, and a second node, which is a gate electrode of the driving transistor, to receive the same scan signal, and a gate auxiliary electrode disposed on a gate electrode of the first transistor or the second transistor. The gate auxiliary electrode is connected to the gate electrode of the first transistor or the second transistor.

Abstract: A display device includes a pixel unit including pixels connected to data lines and scan lines; a data driver disposed on one side of the pixel unit; a scan driver disposed on the one side of the pixel unit together with the data driver; and a controller which controls a slew rate and output timing of data signals output to the data lines based on a load of the scan lines and a load of the data lines. Each of the scan lines includes a main scan line extending in a first direction and connected to pixels in a corresponding pixel row; a first sub-scan line extending in a second direction and connected to the main scan line at a first contact point; and a second sub-scan line extending in the second direction and connected to the main scan line at a second contact point.

Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver is configured to provide a gate signal to the pixel. The data driver is configured to provide a data voltage to the pixel. The emission driver is configured to provide an emission signal to the pixel. The pixel includes a light emitting element, a driving switching element and a bias switching element. The driving switching element is configured to apply a driving current to the light emitting element. The bias switching element is configured to provide a bias voltage to an input electrode of the driving switching element. A frequency of a bias gate signal applied to a control electrode of the bias switching element is greater than a frequency of a data write gate signal applied to the pixel.

Abstract: Disclosed are a light-emitting device, a display panel, and a driving method of the light-emitting device. The light-emitting device includes: a base substrate, a first electrode on a side of the base substrate, a second electrode on a side, facing away from the base substrate, of the first electrode, and at least two blue light-emitting layers located between the first electrode and the second electrode. Different blue light-emitting layers emit light with different wavelengths. The first electrode and the second electrode are configured to be applied with different voltages. A voltage difference between the first electrode and the second electrode includes a first threshold voltage and a second threshold voltage, and under control of the first threshold voltage, one of the blue light-emitting layers emits light; and under control of the second threshold voltage, another blue light-emitting layer emits light.

Abstract: A sub-pixel array and a display are provided. The sub-pixel structure includes a driving module, a first selection module, a second selection module, a switch module, a first light-emitting element, and a second light-emitting element. The first selection module is configured to control conduction between the driving module and an anode of the first light-emitting element or conduction between the driving module and an anode of the second light-emitting element through a first control signal. The second selection module is configured to control grounding of a cathode of the first light-emitting element or grounding of a cathode of the second light-emitting element through a second control signal.

Abstract: A pixel driving circuit includes a signal control sub-circuit and a time control sub-circuit. The signal control sub-circuit includes a first driving sub-circuit connected to a first node. The signal control sub-circuit is configured to: write at least a first data signal into the first node, and enable the first driving sub-circuit to output a driving signal according to the first data signal and a first power supply voltage signal. The time control sub-circuit includes a second driving sub-circuit including a first transistor connected to a second node and the signal control sub-circuit. The time control sub-circuit is configured to: transmit a second power supply voltage signal and a third power supply voltage signal to the second node in different periods, so as to control a turn-on time of the first transistor and transmit the driving signal to an element to be driven when the first transistor is turned on.

Abstract: In one embodiment, a display device includes a display area, a peripheral area, scanning lines, signal lines, a first driver in the peripheral area, and a second driver in the peripheral area. The display area has an arc-shaped corner. The first driver includes first and second buffers configured to apply voltage to the scanning lines, a first shift register unit configured to control the first buffer unit, and a second shift register unit configured to control the second buffer unit. At the corner, extension directions of the first buffer unit and the first shift register unit are equal to each other. Extension directions of the second buffer unit and the second shift register unit are different from each other.

Abstract: A display panel and a display device are provided. A pixel electrode of the display panel includes a pixel electrode body and a pixel electrode extension. The pixel electrode body is positioned within the light-emitting section and the pixel electrode extension is positioned within the light-shielding section. When an insulating layer positioned on an overlapping section is perforated, the pixel electrode extension is electrically connected to the signal electrode of other sub-pixel units via a repair line, thereby solving a technical problem that existing display panels possess a limited effect on repairing bright spots.

Abstract: Disclosed are a display panel and a display device. The display panel includes a display area and a non-display area surrounding the display area. The display area includes scan lines arranged in a second direction and each extending in a first direction, data lines arranged in the first direction and each extending in the second direction, and pixel driver circuits defined by the scan lines and the data lines intersecting each other, the first direction intersecting the second direction. The non-display area includes a step area and a compensation unit, and the compensation unit is located between the step area and a last row of pixel driver circuits. The compensation unit is connected to a corresponding data line and configured to transmit a leakage current compensation signal to the data line.

Abstract: The present disclosure describes a display panel and a circuit to generate a data signal current included thereof. The circuit further comprises a signal voltage module to generate a primary signal voltage and send to a second storage capacitor in a control module to output a data signal voltage. The second storage capacitor is coupled to a first storage capacitor and a gate of a current output transistor, so that the primary signal voltage is stored at the joint node. A threshold voltage of the current output transistor, generated by a voltage compensation module, is then added on to the gate of the current output transistor, so that an output current compensated by the threshold voltage is realized.

Abstract: A stretchable device includes a substrate, the substrate including first regions having a first stiffness and a second region between adjacent first regions and having a second stiffness that is lower than the first stiffness, a unit device array including unit devices on separate, respective first regions of the substrate, and an encapsulant covering the unit device array. The unit device array includes pixel electrodes isolated on separate, respective first regions of the substrate, common electrodes isolated on separate, respective first regions and each facing a separate pixel electrode, the stretchable device configured to apply a same voltage to the plurality of common electrodes, and active layers on separate, respective first regions and each between a separate pixel electrode and a separate common electrode.

Abstract: A display device includes pixels electrically connected to first scan lines, second scan lines, and emission lines, a first scan driver that applies first scan signals to the first scan lines, a second scan driver that applies second scan signals to the second scan lines, an emission control driver that applies emission signals to the emission lines, and a power supply that generates and outputs a first high voltage and a second high voltage. The second scan driver receives the first high voltage. The first scan driver and the emission control driver share the second high voltage.

Abstract: A pixel includes a first capacitor connected between a first electrode and a second electrode connected to a first node, a first transistor including a gate electrode connected to the first node, a first electrode connected to a second node, and a second electrode connected to a third node, a second transistor including a gate electrode that receives a data write gate signal, a first electrode that receives a data voltage, and a second electrode connected to the second node, a third transistor connected between the first node and the third node, a fourth transistor connected between the first node and an initialization voltage input terminal to which an initialization voltage is applied, an eighth transistor t connected to the third transistor and the fourth transistor, and an organic light emitting diode including an anode and a cathode receiving a second power supply voltage.

Abstract: A display panel includes a display region and a bezel region. The bezel region includes multiple multiplexing circuits, and at least one multiplexing circuit includes m multiplexing units, 2n multiplexing control signal lines, m first multiplexing data signal lines, at least one second multiplexing data signal line and n data signal output lines. A multiplexing unit is configured to receive a gating signal of a first multiplexing data signal line based on control signals of the 2n multiplexing control signal lines in a first stage, and in a second stage, based on the gating signal, to write a first type data signal of the first multiplexing data signal line or a second type data signal of a second multiplexing data signal line into a data signal line through a data signal output line when a scan signal is input to a scan signal line.

Abstract: A pixel circuit and a display device including the same are disclosed. The pixel circuit includes: a driving element including electrodes respectively connected to a first node to receive a first constant voltage, a second node, and a third node; a light emitting element including an anode connected to a fourth node and a cathode to receive a second constant voltage; a first switch to provide a data voltage to the second node; a second switch to provide a third constant voltage to the second node; a third switch to provide a fourth constant voltage to the fourth node; a fourth switch to provide the first constant voltage to the first node; a fifth switch to electrically connect the third node to the fourth node.

Abstract: Systems and methods for using peripheral vision in virtual, augmented, and mixed reality (collectively referred to as “xR”) applications are described. In some embodiments, an Information Handling System (IHS) may include a processor and a memory coupled to the processor, the memory having program instructions stored thereon that, upon execution, cause the IHS to: render an object in a peripheral field-of-view of a user; detect at least one of: the user's eye movement, or the user's head rotation; and determine whether to re-render the object based upon the detection.

Abstract: An electronic device may include a display having an array of display pixels on a substrate. The display pixels may be organic light-emitting diode display pixels or display pixels in a liquid crystal display. In an organic light-emitting diode display, hybrid thin-film transistor structures may be formed that include semiconducting oxide thin-film transistors, silicon thin-film transistors, and capacitor structures. The capacitor structures may overlap the semiconducting oxide thin-film transistors. Organic light-emitting diode display pixels may have combinations of oxide and silicon transistors. In a liquid crystal display, display driver circuitry may include silicon thin-film transistor circuitry and display pixels may be based on oxide thin-film transistors. A single layer or two different layers of gate metal may be used in forming silicon transistor gates and oxide transistor gates. A silicon transistor may have a gate that overlaps a floating gate structure.

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 driving apparatus includes an internal reference voltage generation circuit configured to generate and provide an internal reference voltage; a sensing circuit configured to simultaneously sense pixel signals provided from pixels of a display panel and the internal reference voltage, and output a reference voltage sensing signal generated by sensing of the internal reference voltage and pixel sensing signals generated by sensing of the pixel signals; and an output circuit configured to sequentially select the reference voltage sensing signal and the pixel sensing signals, convert the pixel sensing signals into pixel data, convert the reference voltage sensing signal into reference data, and transmits the pixel data and the reference data.

Abstract: An organic light emitting diode display device includes: a substrate including a plurality of sub-pixels classified into a plurality of horizontal pixel lines; a gate line and a sensing line spaced apart from each other on the substrate; a data line and a power line crossing the gate line and the sensing line and spaced apart from each other; and first and second reference lines supplying first and second reference voltages, respectively, and connected to adjacent two, respectively, of the plurality of horizontal pixel lines.

Abstract: A display device includes a display panel having first and second display areas. A data driver provides data and bias voltages to data lines. A timing controller controls the data driver and a scan driver based on at least two operation modes. The first mode drives the first and second display areas at a normal frequency, and the second mode drives the first display area at a first frequency substantially equal to or lower than the normal frequency and the second display area at a second frequency lower than the first frequency. The second mode includes an active frame to write a reference voltage to display a black image in the second display area, and blank frames to maintain the reference voltage and apply the bias voltage to the pixels in the second display area. The data driver varies the bias voltage in the blank frames.

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: Provided are a display panel and a display apparatus. The display panel includes a driving array layer having functional layers and insulation layers. The driving array layer includes a first transistor, a second transistor, a first capacitor including a first plate and a second plate, and a second capacitor including a third plate and a fourth plate. An active layer of the first transistor contains silicon, and an active layer of the second transistor contains oxide semiconductor. The first plate and the second plate are located in two of the functional layers, respectively, and the third plate and the fourth plate are located in two of the functional layers, respectively.

Abstract: A backplane suitable to pulse width modulate an array of emissive pixels with a current that is substantially constant over a wide range of temperatures. A current control circuit provides means to provide a constant current to an array of current mirror pixel drive elements. The current control circuit comprises a thermally stable bias resistor and a thermally stable band-gap voltage source to provide thermally stable controls and a large L p-channel reference current FET with an associated large L n-channel bias FET configured to provide a reference current at a required voltage to the gate of a large L p-channel current source FET. The current control circuit and the current mirror pixel drive elements are similar circuits with one current control circuit able to control a substantial number of pixel drive elements.

Abstract: A display panel, a display device, and a drive method are provided. The display panel includes a plurality of sub-pixel units arranged in an array and a gate drive circuit, and the array includes N rows. The gate drive circuit includes a plurality of cascaded shift register units and N+1 output terminals arranged in sequence, each of the plurality of cascaded shift register units is configured to output a gate scan signal for driving at least two rows of sub-pixel units in the N rows of the array to work; pixel drive circuits of an (n)-th row of sub-pixel units are connected to an (n)-th output terminal of the gate drive circuit to receive the gate scan signal as a scan drive signal, and sensing circuits of the (n)-th row of sub-pixel units are connected to an (n+1)-th output terminal of the gate drive circuit.

Abstract: A display device includes: a display panel including a surrounding display area, below which at least one panel driving circuit is positioned, and a main display area surrounded by the surrounding display area, the display panel including first pixels having a first pixel density and disposed in the surrounding display area and second pixels having a second pixel density greater than the first pixel density and disposed in the main display area; and a display panel driver to divide an input image to be displayed on the display panel in each frame into a first image to be displayed on the surrounding display area and a second image to be displayed on the main display area, calculate a luminance deviation of the first image, and determine whether to display the first image in the surrounding display area based on the luminance deviation of the first image.

Abstract: A stretchable device includes a substrate, the substrate including first regions having a first stiffness and a second region between adjacent first regions and having a second stiffness that is lower than the first stiffness, a unit device array including unit devices on separate, respective first regions of the substrate, and an encapsulant covering the unit device array. The unit device array includes pixel electrodes isolated on separate, respective first regions of the substrate, common electrodes isolated on separate, respective first regions and each facing a separate pixel electrode, the stretchable device configured to apply a same voltage to the plurality of common electrodes, and active layers on separate, respective first regions and each between a separate pixel electrode and a separate common electrode.

Abstract: An image processor includes a frame buffer configured to collect an image data of pixels and configured to generate frame data, a display controller configured to generate the frame update command based on a vertical synchronizing signal and a frame per second signal representing a number of activating of the frame update signal in a second and an operating part configured to generate the vertical synchronizing signal and the image data. When the frame data is generated, the frame buffer activates a frame update signal in response to a frame update command and outputs the frame data. When the frame per second signal is less than a predetermined threshold voltage, the operating part sets a lower limit of a range of a frequency to a predetermined minimum frequency.