Abstract: The present disclosure provides a compensation method, device, circuit for a display panel, a display panel and a display device. The display panel includes a plurality of pixel circuits, each of which comprises a driving transistor. The compensation method includes: obtaining a first compensation grayscale value GL1 and a second compensation grayscale value GL2 of a pixel circuit to be compensated; obtaining a first compensation luminance L1, a first gate-source voltage Vgs1 of the driving transistor, a second compensation luminance L2, and a second gate-source voltage Vgs2 of the driving transistor, wherein L1 and Vgs1 correspond to GL1, and L2 and Vgs2 correspond to GL2; obtaining a theoretical luminance L corresponding to an input grayscale value GL; calculating the compensation gate-source voltage V?gs by using L, L1, Vgs1, L2, and Vgs2; and obtaining an output compensation grayscale value GL? according to V?gs.

Abstract: A timing controller includes: a data transmitter which transmits image data and a frame control signal to a data driver; a scan controller which transmits a scan start signal and a scan clock signal through scan control lines; and a memory interface which receives mode data from a control memory through a memory transmission line during a mode period, where the mode period is a period in which the scan controller does not transmit the scan start signal and the scan clock signal to the scan control lines.

Abstract: An electronic device is provided that includes a display panel including a plurality of source line groups including a plurality of source lines and a plurality of panel switches for each of the plurality of source lines; and a display driver integrated circuit (DDI) configured to drive the display panel, wherein the DDI includes the plurality of source amplifiers, decoders respectively connected to the plurality of source amplifiers, and at least one switch between source amplifier channels, wherein an operation of the at least one switch causes the number of the source line groups corresponding to a source amplifier to be changed.

Abstract: The present disclosure provides a compensation method for a display panel, a compensation system for a display panel, and a display device. The display panel includes a plurality of sub-pixels, and the compensation method includes: respectively determining a current aging degree coefficient of each sub-pixel according to historical display data of the sub-pixel; and, for each sub-pixel, performing aging compensation on the sub-pixel according to the current aging degree coefficient of the sub-pixel when a current frame is displayed. The present disclosure further provides a compensation system for a display panel, and a display device.

Abstract: Provided is an organic light-emitting display device. The organic light-emitting display device includes at least a pixel circuit comprising an organic light-emitting diode and a driving transistor for driving the organic light-emitting diode; a first supply voltage line transferring a first voltage to the pixel circuit; at least a second supply voltage line transferring the first voltage to the pixel circuit during a first period and transferring a second voltage to the pixel circuit during a second period; and a switch connected between the first supply voltage line and the second supply voltage line, wherein the switch is turned on during the first period and turned off during the second period. Accordingly, it is possible to provide a structure for reducing variations in supply voltages of an organic light-emitting display device.

Abstract: A pixel circuit and a driving method thereof and a display device are disclosed. The pixel circuit includes a switch circuit, a driver circuit, a compensation circuit, a reset circuit and a light emitting element. The driver circuit includes a control terminal, a first terminal and a second terminal and is configured to control a driving current, which runs through the first terminal and the second terminal; the switch circuit is configured to write a data signal to the control terminal in response to a scan signal; the compensation circuit is configured to store the data signal that is written in and electrically connect the control terminal and the second terminal in response to the scan signal; the reset circuit is configured to apply a reset voltage to the compensation circuit in response to a reset signal and electrically connect the control terminal and the first terminal.

Abstract: The embodiments of the present disclosure provide a pixel circuit and a method for driving the same, a display panel and a display apparatus. The pixel circuit includes: a storage capacitor having a first terminal coupled to receive a first control signal; a first transistor having a first electrode electrically coupled to a first voltage signal terminal, and a gate electrically coupled to a second terminal of the storage capacitor; and a second transistor having a first electrode electrically coupled to the second terminal of the storage capacitor, a second electrode electrically coupled to a second electrode of the first transistor, and a gate coupled to receive a second control signal. A threshold voltage of the first transistor is compensated through the first control signal, the second control signal and a voltage signal applied at the first voltage signal terminal.

Abstract: A pixel circuit unit, a driving method thereof, a display panel and a display device are disclosed. The pixel circuit unit includes a plurality of pixel drive circuits and a voltage control circuit including a first terminal and a second terminal; the first terminal is connected with a first voltage terminal to receive a first supply voltage provided by the first voltage terminal; each pixel drive circuit includes a light-emitting drive circuit including a supply voltage receiving terminal and a control terminal; the supply voltage receiving terminal is electrically connected with the second terminal, so as to allow the supply voltage receiving terminal to be capable of receiving the first supply voltage; and the voltage control circuit is configured to be disconnected in a data voltage writing stage, so that the supply voltage receiving terminal does not receive the first supply voltage in the data voltage writing stage.

Abstract: A display device includes a display unit which includes pixels and displays an image, a data driver which supplies a data signal to the pixels, and a timing controller which controls the data driver using a timing control signal. Here, the timing control signal may include a vertical synchronization signal for defining a frame period and a data enable signal for defining a display period during which an image is displayed and a blank period during which an image is not displayed. Here, lengths of blank periods may be equal to each other in a first driving mode in which the vertical synchronization signal is supplied to the timing controller in a constant cycle and in a second driving mode in which the vertical synchronization signal is supplied in different cycles.

Abstract: A pixel circuit includes a main-circuit that controls an organic light-emitting element by controlling a driving current to flow into the organic light-emitting element and a sub-circuit including a first compensation transistor including a gate terminal which receives a first gate signal, a second compensation transistor including a gate terminal which receives a second gate signal, and an initialization transistor including a gate terminal which receives an initialization signal. Here, in a low-frequency driving mode, a driving frequency of the first gate signal is N hertz (Hz), a driving frequency of the initialization signal is N Hz, a driving frequency of the second gate signal is M Hz, the first compensation transistor and the initialization transistor are turned on during a first time duration in N non-light-emitting periods per second, and the second compensation transistor is turned on during a second time duration in M non-light-emitting periods per second.

Abstract: Disclosed is a GOA circuit, including GOA units, which are cascade coupled. An nth stage GOA unit charges nth stage, n+1th stage and n+2th stage horizontal scanning lines. The nth stage GOA unit includes a pull-up control circuit, receiving a start signal CT and outputting a pull-up control signal Q(n); a pull-up circuit, receiving Q(n), an nth stage clock signal CK(n), an n+1th stage clock signal CK(n+1) and an n+2th stage clock signal CK(n+2), and outputting an nth stage transfer signal ST(n), an nth stage scan driving signal G(n), an n+1th stage scan driving signal G(n+1) and an n+2th stage scan driving signal G(n+2); a pull-down circuit, receiving an n+6th stage scan driving signal G(n+6) and a first direct current low voltage signal VSSQ1 to enable Q(n) in an off state. Three stages scan driving signals can be outputted through one stage GOA unit.

Abstract: Disclosed in the present disclosure is a preconfigured reverse drive method applied in a video displaying process. The method comprises the steps of: pre-obtaining display content of several frames behind lit pixels in a video by means of content loading; and adding a reverse drive signal before each forward drive signal used for driving the display content of the several frames, to suppress electric charge concentration on pixel in a video display panel in advance. The reverse drive signal changes the potential barrier of the detect potential well, removes electric charges confined and concentrated in the potential well, and reduces the density of confined electric charges. Thus, the video display brightness is improved, and the service life of the video display panel is prolonged.

Abstract: A driving method of a display device, a data driving integrated circuit, and a display panel are provided. The driving method comprises: acquiring a voltage signal and a data polarity reversal signal to be transmitted; when the data polarity reversal signal is a predetermined level, comparing a voltage of the voltage signal with a predetermined drive voltage, and selecting a corresponding drive voltage according to a comparing result; and driving liquid crystal molecules according to the selected drive voltage.

Abstract: A pixel circuit and a display device are provided. The pixel circuit includes a pixel unit which includes an operating current generating module and a light emission control module. The operating current generating module has a gate voltage terminal and is configured to generate an operating current according to a voltage of the gate voltage terminal. The light emission control module is connected in series with the operating current generating module and configured to control whether to provide the operating current to a light emitting device according to a light emission control signal. The driving control circuit includes: a data current module, configured to provide a data current and to input the data current to the gate voltage terminal; and a current adjusting module, configured to control whether to input a compensation current to the gate voltage terminal according to a current value of the operating current.

Abstract: A power supply circuit includes a voltage boosting circuit for boosting a supplied first power supply voltage to a second power supply voltage used in a drive circuit of a display device, a capacitor provided between a power supply wiring for outputting the second power supply voltage and a ground, a logic circuit for outputting a high-level signal when the first power supply voltage and a supplied first control signal are at a high level, a delay circuit for outputting a signal obtained by delaying an output signal of the logic circuit as a second control signal used for an operation control of the drive circuit, and a resistor provided between an input terminal of the delay circuit and the ground. The power supply circuit may include a first diode on the power supply wiring, or may include a second diode having an anode terminal connected to an output terminal of the second control signal and a cathode terminal connected to the input terminal of the delay circuit.

Abstract: A display device and a method of driving the same. Characteristics of driving transistors disposed in subpixels of a display panel are sensed and compensated for, thereby improving the image quality of the organic light-emitting display device. Changes in a data voltage between a point in time at which a blank period starts and a period in which the sensing of the driving transistors starts are reduced or minimized, thereby reducing deviations in the sensing of the characteristics of the driving transistors.

Abstract: The present invention relates to a pixel sensing device capable of compensating for an error included in a test current itself by supplying, when a pixel current is sensed, the test current used in the sensing of each channel circuit error.

Abstract: The application relates to a pixel compensation method, a pixel compensation circuit and a display device. The pixel compensation method includes: recording a working time of a display device and determining gate and source voltages of a TFT in an active area within the working time; finding a voltage compensation value from a look-up table according to the working time and the gate and source voltages; and performing voltage compensation to a scan signal according to the voltage compensation value. The gate and source voltages in a time period of the display device are counted, the pre-stored look-up table is searched according to voltage statistical values of gate, source and drain to determine voltage adjustment values for adjusting voltage values of the scan signal, so that a problem of image ghost or flicker in the display device caused by the drift of I-V characteristic curve is overcome consequently.

Abstract: A circuit device (100) includes: a pixel clock judgment circuit (110) that outputs a pixel clock judgment signal ERPX that is activated if an edge of a pixel clock signal PXCK has not been detected in a detection period that is set by a reference clock signal RFCK; a signal judgment circuit (120) that judges whether or not a display control signal DCS is normal based on the reference clock signal RFCK, and outputs a signal judgment signal EPDC that is activated if the display control signal DCS is anomalous; and a mask circuit (130) that masks the display control signal DCS when at least one of the pixel clock judgment signal ERPX and the signal judgment signal EPDC is activated.

Abstract: Certain embodiments of the present invention include an apparatus comprising a charge pump, configured to provide an output voltage at an output node of the charge pump, and a charge pump regulator circuit coupled to the charge pump. One such charge pump regulator circuit is configured to control the charge pump to increase the output voltage during a first period of time. Such a charge pump regulator circuit can also cause a node of a circuit coupled to the output node of the charge pump to reach a target voltage level during a second time period.

Abstract: Provided are a display device. The display device comprises: a display unit defined by a display area and a non-display area located outside the display area, and including pixels arranged in the display area, first sensing wirings electrically connected to the pixels, and auxiliary voltage wirings electrically separated from the pixels; and a sensing unit electrically connected to the first sensing wirings, wherein the first sensing wirings and the auxiliary voltage wirings extend in a first direction and are sequentially arranged along a second direction perpendicular to the first direction at first intervals, the first sensing wirings are spaced apart from each other along the second direction at second intervals greater than the first intervals and are electrically separated from each other, and the auxiliary voltage wirings are electrically connected to each other.

Abstract: A display device may include a first pixel coupled to an emission control line, and an emission control stage for selectively coupling the emission control line to a first or second supply voltage line. The emission control stage may include: a first emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the emission control line, and a main gate electrode coupled to a first node; a second emission control transistor including a first electrode coupled to the emission control line, a second electrode coupled to the second supply voltage line, and a main gate electrode coupled to a second node; and a third emission control transistor including a first electrode coupled to the first supply voltage line, a second electrode coupled to the first node, a main gate electrode coupled to the second node, and a sub-gate electrode.

Abstract: Current-voltage shift determination circuitry of a processing core complex coupled to the electronic display determines total current-voltage shift values at a pixel. The current-voltage shift determination circuitry then determines temperature-based current-voltage shift values at the pixel. The current-voltage shift determination circuitry extracts the temperature-based current-voltage shift values from the total current-voltage shift values to determine age-based voltage degradation values. Display compensation circuitry of the processing core complex adjusts display of image data by the pixel based on the age-based voltage degradation values. In this manner, voltage degradation due to pixel aging may be determined separately from current-voltage shift due to temperature, and, as such, be more accurately compensated for, resulting in better display of image data.

Abstract: The present disclosure provides a temperature compensation method and device, and a display apparatus. In the temperature compensation method, a temperature value of a driving transistor corresponding to a light emitting device in the display apparatus is determined according to a photoelectric display signal of the display apparatus and/or an anode voltage signal of the light emitting device, and an electrical parameter offset of the driving transistor is calculated according to the temperature value, so as to perform real-time temperature compensation on a date line signal such as a gate voltage.

Abstract: There are provided a gate driver and a display device including the same. The gate driver includes: a first scan driver; a first sensing driver; a first scan clock line; and a first sensing clock line. The first scan clock line includes a first scan clock main line extending in one direction, and a first scan clock connection line connected to the first scan clock main line and the first scan driver. The first sensing clock line includes a first sensing clock main line extending in one direction, and a first sensing clock connection line connected to the first sensing clock main line and the first sensing driver. The first scan clock main line is closer to each of the first scan driver and the first sensing driver than the first sensing clock main line.

Abstract: A display device includes a display panel including a plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, a data driver configured to generate a first initialization completion signal, and to provide data signals to the plurality of pixels, and a controller configured to generate a second initialization completion signal in response the first initialization completion signal and a state signal, and to control the gate driver and the data driver in response to the second initialization completion signal. The first initialization completion signal is activated when an initialization operation of the data driver is completed, and the state signal is activated when an initialization operation of the controller is completed.

Abstract: A readout circuit for a sensor and a readout method thereof are provided. The readout circuit includes a reference circuit, a compensated circuit, and a signal processing circuit. The reference circuit provides a direct current (DC) signal. The compensated circuit is coupled to the reference circuit. The compensated circuit obtains an analog sensing signal of the sensor, obtains the DC signal from the reference circuit, and provides a compensated signal according to the analog sensing signal and the DC signal. The signal processing circuit is coupled to the compensated circuit. The signal processing circuit processes the compensated signal to convert the compensated signal into a digital sensing signal. The compensated circuit subtracts the DC signal from the analog sensing signal to provide the compensated signal.

Abstract: The present application provides a pixel compensation device, a pixel compensation method, a pixel driving device, a timing control module and a display apparatus. The pixel compensation device includes a luminance conversion unit, an emitting voltage calculation unit, an emitting voltage offset calculation unit and a data conversion unit. The data conversion unit is configured to read pre-stored emitting voltage offset compensation data for a driving transistor in a sub-pixel unit with respect to a gate-source voltage of the driving transistor and obtain corresponding first luminance compensation data based on the emitting voltage offset and the emitting voltage offset compensation data. The data conversion unit is further configured to generate source luminance data based on the luminance signal data and the first luminance compensation data and output the source luminance data to a source driving module.

Abstract: An organic light emitting display apparatus comprises an organic light emitting display panel including a plurality of pixels each including an emission transistor that controls a timing in which an organic light emitting diode emits light; a gate driver outputting gate pulses to a plurality of gate lines provided in the organic light emitting display panel; an emission driver provided in the organic light emitting display panel and outputting an emission signal that controls turn-on and turn-off of the emission transistor to an emission line connected to the emission transistor; a data driver outputting data voltages to a plurality of data lines provided in the organic light emitting display panel; and a controller supplying a first signal and a second signal to the emission driver through one transfer line, wherein the first signal is generated for driving the emission driver when each frame starts, and the second signal is generated for driving the emission driver and has a period shorter than one frame pe

Abstract: The present application discloses a pixel compensation circuit and a display panel. By adopting a double-gate structure transistor as a driving transistor, a top gate and a bottom gate can respectively regulate channels to realize a dynamic adjustment of a threshold voltage of the driving transistor. Detection of the threshold voltage by a diode-connect mode can be realized by controlling the driving transistor. Real-time compensation of the threshold voltage can be realized, and compensation of a positive drift and a negative drift of the threshold voltage can also be realized, which effectively improves uniformity of image display under a same grayscale.

Abstract: A display device includes: a display panel including a gate line, an emission signal line, a data line, and a pixel coupled to the gate line, the emission signal line, and the data line; a gate driver configured to provide a gate signal to the gate line; an emission driver configured to provide an emission signal to the emission signal line; a data driver configured to provide a data signal to the data line; and a power supplier configured to provide the display panel with a power voltage for driving the pixel, wherein the emission driver is configured to start operating at a first time point in response to an emission enable signal provided from the data driver, and the gate driver is configured to start operating at a second time point in response to a gate enable signal provided from the data driver.

Abstract: A pixel includes: an organic light emitting diode; a first transistor including a gate that is connected to a first node, wherein the first transistor is connected between a second node and a third node; a second transistor including a gate that is connected to a corresponding scan line, wherein the second transistor is connected between a data line and the second node; a storage capacitor connected between the first node and a first voltage; a third transistor including a gate that is connected to the corresponding scan line, the third transistor is connected between the first node and the third node; and a fourth transistor connected between a first end of the first transistor and a second voltage.

Abstract: The application discloses a pixel circuit and a driving method thereof, a display device. The pixel circuit includes a first through seventh thin film transistor, a light-emitting diode, a storage capacitor and a compensation module. A gate of the first thin film transistor is separately connected to a source of the third and fourth thin film transistor and one end of the storage capacitor, a drain of the fourth thin film transistor is connected to a reference voltage signal line; source of the first thin film transistor is separately connected to a drain of the second and fifth thin film transistor and a source of the seventh thin film transistor; a drain of the first thin film transistor is separately connected to a drain of the third thin film transistor and a source of the sixth thin film transistor.

Abstract: An electronic device according to an embodiment the disclosure may include a display, a processor, and a power supply unit supplying power to the display and the processor. The power supply unit may include a power receiving unit receiving AC power from an external power source, a rectifying unit rectifying the AC power to convert the AC power to DC power, and a power factor correction unit adjusting a power factor of the DC power based on voltage at a specified point of the power supply unit and outputting voltage of the DC power to be output to the display, and the processor may be configured to identify power consumption of the display and to turn on or off the power factor correction unit based on the identified power consumption of the display. Moreover, various embodiment grasped through the disclosure are possible.

Abstract: The invention discloses a pixel circuit for top-emitting AMOLED panel and driving method thereof. The pixel circuit comprises: first TFT (T1), connected to first node(G), second node(S) and third node(D); second TFT(T2), connected to scan signal(Scan), first node(G) and data signal(Data1); third TFT(T3), connected to scan signal(Scan), second node(S) and reference voltage(Ref); fourth TFT(T4), connected to scan signal(Scan), third node(D) and high voltage power source(Data2); first capacitor(Cst), connected to first node(G) and second node(S); second capacitor(C), connected respectively to third node(D) and reference voltage(Ref); OLED, connected to second node(S) and low voltage power source(VSS); the voltage difference between high voltage power source(Data2) and low voltage power source(VSS) maintaining unchanged. The invention also provides a corresponding driving method. The invention can effectively relieve the IR voltage drop caused by increased impendence of the transparent cathode.

Abstract: Disclosed is an organic light emitting display apparatus. The organic light emitting display apparatus outputs black gate pulses for a black image and sensing gate pulses for sensing in a vertical blank period and differently sets timings, at which the sensing gate pulses are output after the black gate pulses are output, for each gate line.

Abstract: A display device includes a plurality of pixels. Each pixel includes a first transistor including a first gate electrode, a first source region, and a first drain region, a second transistor connected to the first source region of the first transistor, a third transistor connected to the first gate electrode and the first drain region of the first transistor, a fifth transistor connected to the first source region of the first transistor, and a sixth transistor connected to the first drain region of the first transistor. The pixels include a first pixel and a second pixel disposed adjacent to each other. The first and second pixels share a fourth transistor connected to the third transistor of the first pixel and the third transistor of the second pixel, and share a seventh transistor connected to the sixth transistor of the first pixel and the sixth transistor of the second pixel.

Abstract: An output buffer circuit is disclosed to achieve a high slew rate without increasing current consumption. The output buffer circuit includes an input circuit configured to output a first signal and a second signal in response to an input signal, and a slew rate control circuit configured to connect one of the first signal and the second signal to an output terminal to control a slew rate of an output signal based on or in response to a potential difference between the input signal and the output signal.

Abstract: A method for reducing power consumption of a source driver included in a display device and suppressing heat generation is provided. In a display device in which each pixel is supplied with a data signal of image data through a source line, a source driver is included, each source line is electrically connected to the source driver, and the source driver has a function of driving the source lines. In the case where the amount of change of the data signal of the image data is small, in other words, in the case where power for charging and discharging the source line can be small, the source driver reduces the apparent size of the transistor at the output stage, and power consumption can be reduced. Furthermore, the amount of heat generation can be reduced.

Abstract: An organic light emitting display device includes a display panel including a plurality of pixels and a panel driver configured to generate driving signals to drive the plurality of pixels. Each of the plurality of pixels includes a first transistor, a second transistor, a storage capacitor, a third transistor, a maintain capacitor, a fourth transistor, a fifth transistor, and an organic light emitting diode. The maintain capacitor is configured to maintain a gate voltage of the first transistor during an emission period of the pixels.

Abstract: A display apparatus and a driving method of a display panel thereof are disclosed. The display apparatus includes the display panel and a common voltage setting circuit. The display panel has a plurality of pixels and a plurality of common electrode lines and receives a plurality of pixel voltages. Each of the pixels is coupled to the corresponding common electrode line and receives the corresponding pixel voltage. The common voltage setting circuit is coupled to the common electrode lines. A common voltage having a normal voltage level is supplied to the common electrode lines during a first frame period. The common voltage having a complementary high voltage level or a complementary low voltage level is supplied to the common electrode lines during a second frame period. Each of the pixels receives the same pixel voltage during the first frame period and the second frame period.

Abstract: A display device includes a voltage generation circuit that generates a plurality of clock signals and a first driving voltage, a second driving voltage, and a third driving voltage. A gate driving circuit receives the generated clock signals and the first driving voltage, the second driving voltage, and the third driving voltage, and includes a plurality of driving stages each of which outputs a carry signal and a gate signal to a corresponding gate line among gate lines. The voltage generation circuit sets a voltage level of the third driving voltage based on a signal of a first node of at least one of the driving stages.

Abstract: A computer system includes a client device; and a display device operationally connected to the client device, wherein the display device provides the client device with an operating energy, and the display device detects the type of the client device, and, when the client device belongs to a predefined group of client devices, provides the client device with an operating energy even if the display device enters an energy-saving mode or is switched off.

Abstract: Light output of a display can be dynamically adjusted on-the-fly. When implemented on a low-persistence display that supports a variable refresh rate, this dynamic light output adjustment maintains a constant brightness over a series of frames to eliminate flickering of the display. When pixel data of a given frame is output to a frame buffer for presenting an image on the display, a time difference between an illumination of the display's light emitting elements for a preceding frame and an upcoming illumination of the light emitting elements for the given frame may be determined, and this time difference is used to determine a value of a light output parameter. During presentation of the image on the display, the light emitting elements can be illuminated in accordance with the value of the light output parameter. This determination iterates over a series of frames to dynamically adjust the display's light output.

Abstract: A display may have an array of organic light-emitting diode display pixels operating at a low refresh rate. Each display pixel may have six thin-film transistors and one capacitor. One of the six transistors may serve as the drive transistor and may be compensated using the remaining five transistors and the capacitor. One or more on-bias stress operations may be applied before threshold voltage sampling to mitigate first frame dimming. Multiple anode reset and on-bias stress operations may be inserted during vertical blanking periods to reduce flicker and maintain balance and may also be inserted between successive data refreshes to improve first frame performance. Two different emission signals controlling each pixel may be toggled together using a pulse width modulation scheme to help provide darker black levels.

Abstract: In the image processing device, to display, by the panel self-refresh, a still image corresponding to the image data having undergone the image processing, the switch signal generating circuit generates the switch signal controlling switching of the image data selected by the first to fourth switch circuits such that the input image data is subjected to the image processing by the first image processing circuit, that the image data having undergone the image processing is written in the frame buffer through control by the panel self-refresh control circuit, and that the image data having undergone the image processing as read out from the frame buffer is output from the fourth switch circuit or the image data having undergone the image processing is output from the fourth switch circuit via the third switch circuit.

Abstract: When supply of power has stopped, voltages of GDM signals are set as follows. A clear signal that contributes to removal of charge at floating nodes (an output control node and a stabilization node) in each unit circuit included in a shift register is set to a voltage of ground, and other signals (a gate start pulse signal, gate clock signals, and a reference voltage) are set to a gate-on voltage. To implement such settings, a single power supply system configuration that uses a voltage of only one channel as a scanning line selection voltage is adopted.

Abstract: This invention provides methods of and related apparatus for driving an electro-optic display having a plurality of pixels. The method includes dividing the plurality of pixels into n groups, where n is an integer larger than 1, applying a full clearing waveform to at least one group of the n groups of pixels, and applying a top off waveform to cardinal pixels of the at least one group of pixels.

Abstract: Methods and systems are provided for power management in communication devices, particularly based on cable connectivity. In a communication device that includes a communication port, including a first connector and a signal path communicatively coupled to the connector, measurements associated with the signal path may be obtained. Based on the obtained measurements, it may be determined whether an external cable is mated to the connector, and the communication device may be transition to a sleep mode when it is determined that the external cable is not mated to the connector. Determining whether the external cable is mated may be based on detecting presence or absence of a signal on the signal path, based on evaluating signal characteristics of a signal present on the signal path, measuring of voltage or current at the communication port, and/or energy measurements associated with one or more particular frequencies.

Abstract: A display device includes a display panel including a data line and a unit pixel including sub pixels having different colors from each other, where the sub pixels of the unit pixel are connected to a same data line, an image data analyzer which determines whether image data of a horizontal line satisfies a condition of a charging inferiority pattern, and an output buffering part including a first amplifier which amplifies and outputs a data voltage of a positive polarity and a second amplifier which amplifies and outputs a data voltage of a negative polarity, where a low power voltage terminal of the first amplifier and a high power voltage terminal of the second amplifier receive power voltages having different levels from each other, respectively, when the image data of the horizontal line satisfies the condition of the charging inferiority pattern.