Abstract: A display device includes a display panel that includes a pixel, a current sensor that measures a driving current provided to the display panel, and a timing controller that calculates a reference driving current and a degradation ratio of the pixel based on first image data provided to the display panel and compensates second image data based on the driving current, the reference driving current, and the degradation ratio of the pixel.

Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.

Abstract: A circuit and method for eliminating image sticking during power-on and power-off, the circuit for eliminating image sticking during power-on and power-off includes a voltage detecting module and a common signal writing module; the voltage detecting module detects whether an operating voltage is lower than a first threshold voltage during power-on, and detects whether the operating voltage is lower than a second threshold voltage during power-off; and the common signal writing module writes, when the operating voltage is lower than the first threshold voltage during power-on or the operating voltage is lower than the second threshold voltage during power-off, a signal with a voltage equal to a voltage at a common voltage signal terminal at the same timing, to a data line.

Abstract: To manage dynamic adjustment of the refresh rate of a computer display, the operating system defines at least two playback modes: one or more custom modes that can be selected by applications, and a standard mode which is a default setting for the system that can be expected by applications. The operating system provides an application programming interface that enables an application to request using a custom mode. If approved to use the custom mode, then the application presents frames for display based on the custom mode. The operating system stores timing data for each buffered frame indicating how to play the frame in both standard mode and the custom mode. If a transition back to the standard mode occurs, the operating system uses the timing data to properly present frames of video until the application stops generating frames of video in the custom mode.

Abstract: In a display element such as an organic EL element, deterioration progresses due to light emission, and emission luminance is lowered even if the same voltage is applied to the display element. Therefore, use over time causes variations in luminance of each pixel, thereby a so-called “image burn-in” phenomenon occurs. Given this factor, the invention provides a display device which can reduce the difference in deterioration of a display element in each pixel and suppress variations in light emission of a display element in a pixel. It is prevented that only a specific pixel has a long accumulated lighting time. For that purpose, a gray scale of a display pattern is changed to prevent the difference in deterioration of display element in pixels from increasing. Alternatively, a specific display pattern is prevented from being fixedly displayed in a specific region.

Abstract: In an embodiment of the invention, a portable electronic device may conserve power while in a normal power mode. The display screen of the portable electronic device may be switched from an original screen mode to an adjusted screen mode. In adjusted screen mode, the display screen may display an adjustable displaying area that is reduced from an original size and it may include an inactive area sized to reduce display consumption of power. An original interface, or a portion thereof, may be displayed in the adjustable displaying area. Other embodiments are described and claimed.

Abstract: A system and method for preventing image retention in an electronic display. A time threshold (TT) and a pixel threshold (PT) may be defined. The system preferably performs a checksum calculation of all pixel data within an active image area of the electronic display for an interval of time until reaching TT. The system may then compare the checksum calculation for each interval of time to determine if the change in pixel data is less than PT. Preferably, the system will perform an image retention prevention method for the active image area if the change in pixel data is less than PT. Generally, this is performed by transmitting alternate pixel data to the electronic display.

Abstract: A flicker control circuit of liquid crystal devices (LCDs) includes a main control chip, a low differential voltage regulator (LDO) circuit, a first resistor, a second resistor, and a reset resistor. The main control chip includes an operational voltage input end, a common voltage output end, and a dividing reference voltage input end. The LDO circuit receives a voltage provided by an external power module and generates a dividing reference voltage in accordance with the received voltage. One end of the first resistor connects to the LDO circuit to receive the dividing reference voltage, and the other end of the first resistor connects to the dividing reference voltage input end. The flicker of the LCDs may be reduced such that the display performance of the LCDs may be enhanced.

Abstract: A system and method for reducing load on a load balancer by offloading redundant queries to the client. The system and method includes receiving an optimized service listing and determining if a suitable server can be identified without submitting a query to the load balancer. An exemplary method includes receiving, from a load balancing node, a listing of client services hosted by servers remotely coupled to the load balancing node, locally storing this listing and identifying one or more the client services to be transmitted to the client device. The method further includes accessing the listing of client services to determine if one or more of the servers is hosting the identified client service, establishing a connection between the client device and the server, and transmitting the identified client service from the server to the client device.

Abstract: An organic light-emitting diode display may contain an array of display pixels. Each display pixel may have a respective organic light-emitting diode that is controlled by a drive transistor. At low temperatures, it may be necessary to increase the amount of current through an organic light-emitting diode to achieve a desired luminance level. In order to increase the current through the light-emitting diode, the ground voltage level may be lowered. However, this may lead to thin-film transistors within the pixel leaking, which may result in undesirable display artifacts such as bright dots being displayed in a dark image. In order to prevent leakage in the transistors, the transistors may be coupled to separate reference voltage supplies or separate control lines. Additionally, the transistors may be positioned to minimize leakage even at low ground voltage levels.

Abstract: Display panels and methods for operating a display panel are described. In an embodiment, the display panel includes a plurality of pixels arranged in rows and columns, a plurality of rows of emission control lines extending through the plurality of rows of pixels, and a global emission line coupled to the plurality of rows of emission control lines. Modes of operation of the display panel include global flash mode and low persistence mode.

Abstract: An electronic device includes an internal supply rail; a plurality of first main header switches for coupling the internal supply rail to a first power supply; a plurality of second main header switches for coupling the internal supply rail to a second power supply; an auxiliary circuit including a first auxiliary header switch for coupling the internal supply rail to the first power supply and a second auxiliary header switch for coupling the internal supply rail to the second power supply; a feedback circuit, the feedback circuit tracking a status of the first and second main header switches; and a control circuit, the control circuit controlling the first main header switches, second main header switches and first and second auxiliary header switches responsive to the switch control signal and an output of the feedback circuit.

Abstract: An electronic device and method are disclosed herein. The electronic device includes a display, a display driver integrated circuit, a memory and a processor, which implements the method. The method includes outputting a first screen to a display in a first resolution, when a resolution change condition is detected by a processor, changing the first screen to display a second screen in a second resolution different from the first resolutions; and adjusting performance of a system resource of the electronic device.

Abstract: An organic light emitting diode (OLED) display device for simplifying a structure of an internal compensation pixel circuit is disclosed. The OLED display device is configured in such a way that an Nth pixel circuit shares a transistor for initializing a storage capacitor and a gate electrode of a driving transistor that belong to an (N+1)th pixel circuit to initialize an OLED element. Accordingly, a transistor for initializing an OLED element is omitted from each pixel circuit, thereby simplifying a circuit structure and reducing a circuit area.

Abstract: An electrowetting display device may comprise at least one pixel region that includes: a hydrophobic layer portion; an oil disposed on the hydrophobic layer portion, wherein an amount of light transmitted through the pixel region is based, at least in part, on an area of the hydrophobic layer portion that is covered by the oil; and a thin film transistor (TFT); a photo-sensor configured to generate a voltage based, at least in part, on the amount of light that transmits through the pixel region; and an electronic control circuit configured to (i) receive the voltage from the photo-sensor and (ii) provide a driving signal to the TFT of the pixel region, wherein an amplitude of the driving signal is based, at least in part, on the voltage from the photo-sensor.

Abstract: A light emitting display device and a method for driving the same are disclosed, in which a source voltage of a driving transistor for compensating for degradation of a light emitting element may be prevented from getting out of a sensing voltage range of an analog-to-digital converter. The light emitting display device comprises a display panel connected to data lines, scan lines and reference voltage lines and provided with pixels, each pixel including a light emitting element; an analog-to-digital converter (ADC) converting voltages sensed from the pixels through the reference voltage lines into sensing data; and a voltage supply unit supplying a reference voltage to the reference voltage lines. The voltage supply unit supplies a third low voltage and a third high voltage to the ADC in a degradation compensation mode for compensating for degradation of the light emitting element. In the degradation compensation mode, the reference voltage is equal to or higher than the third low voltage.

Abstract: The present invention reliably and sufficiently corrects a voltage variation in data signal lines in a display device resulting when sampling analog video signals, while suppressing increase in layout area. In a data signal line drive circuit of an active matrix liquid crystal display device, a video signal Svi is sampled by an Nch transistor (SWk) which has a parasitic capacitance (Cgd) that causes a voltage drop in a data signal line SL3(i?1)+k (i=1 through n; k=1, 2, 3). To correct this, an inversion delayer (342) makes logical inversion of the transistor (SWk)'s control signal Sck and delays the inverted signal for a predetermined time to generate an inversion delayed signal Srdk, and applies this inversion delayed signal Srd to the data signal line 3(i?1)+k via a correction capacitance element (Cc). The inversion delayer (342) makes the inversion delayed signal Srdk start its change from an L level voltage to a H level voltage after the Nch transistor (SWk) has assumed an OFF state.

Abstract: The invention provides an OLED pixel driving circuit and OLED display device. The OLED pixel driving circuit uses 5T1C structure and switch (K). By switch signal (Switch) controlling the switch (K) to connect first pin (K1) and second pin (K2) to enter display mode, and to connect first pin (K1) and third pin (K3) to enter sense mode, the ADC (ADC) senses the threshold voltage of the fourth TFT (T4), converted and used for data compensation in the display mode, able to compensate and eliminate the impact of threshold voltage of the fourth TFT (T4) on the current flowing through the OLED (D1); the light-emitting control signal (EM) controls the fifth TFT (T5) connected to the OLED (D1) to cut off during the data writing stage (t1) to keep the data signal voltage and the gate voltage of the fourth TFT (T4) unaffected by the OLED (D1) threshold voltage.

Abstract: A method for rendering drawing events on an electro-optic display such that a stylus (pen) stroke is perceived as actually writing on the electro-optic display. Typically, a first line segment is detected and its area is updated using a first drive scheme having faster waveforms. Then a second line segment is detected and its area is updated using the first drive scheme. Thereafter, the areas of both line segments are updated using a second drive scheme different from the first drive scheme, typically involving slower waveforms.

Abstract: A display device may include: a plurality of pixels; a gate driver that receives clock signals and generates and applies a plurality of gate signals to a respective plurality of gate lines connected to the plurality of pixels; and a clock signal driver. The clock signal driver may output the clock signals and receive feedback clock signals derived from the clock signals, compare the feedback clock signals, and control amplitudes of the clock signals so that an amplitude difference between the feedback clock signals is less than a threshold.

Abstract: A pixel circuit and driving method, an array substrate, a display panel, and a display device are provided. The pixel circuit includes a voltage clamping unit, an energy storage unit, and a reference voltage terminal. The voltage clamping unit connects to the reference voltage terminal and a first terminal of the energy storage unit. The voltage clamping unit forms a voltage divider circuit to supply a divided reference voltage from the reference voltage terminal to the first terminal of the energy storage unit or pulls and clamps the voltage at the first terminal of the energy storage unit to a reference voltage at the reference voltage terminal.

Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.

Abstract: A portable terminal includes a receiving unit which receives content information, an external device communication unit which conducts communication with an external information device, a display unit which displays the content information received by the receiving unit, an acquiring unit which acquires identification information identifying the content information displayed by the display unit, an operation unit which receives an operation indication from a user, and a control unit which conducts control such that if a transmission indication of the identification information is received by the operation unit while the content information is being displayed, the identification information acquired by the acquiring unit is transmitted to the external information device and the display of the content information by the display unit is terminated.

Abstract: A display method and display device are provided. The method includes: detecting whether a displayed content in a display screen changes; in response to detecting that the displayed content does not change, controlling the display screen to update alternately display data respectively corresponding to odd pixels and even pixels in each row of display unit. The number of updated pixels of the display screen each time may be reduced, while the original refresh frequency is maintained, so the problem that the splash screen phenomena is caused in the display screen by reducing the refresh frequency of the display screen may be solved, thus achieving effects of avoiding the splash screen phenomena of the display screen and of reducing the power consumption of the display screen while maintaining the original refresh frequency of the display screen.

Abstract: A display device and a driving method thereof are provided. The driving method includes supplying a first voltage Vp1 to a sub-pixel of the display device through data lines in a first stage of a control period for displaying an image. A time for displaying the image includes a plurality of control periods, and the control period includes the first stage and at least a second stage following the first stage. The driving method also includes supplying a second voltage Vp2 to the sub-pixel through the data lines in the second stage. A gate scanning frequency of the first stage is F1 and a gate scanning frequency of the second stage is F2. When the first stage ends, the sub-pixel has a pixel voltage Vp3, F1<F2, and |Vp1|?|Vp2|>|Vp3|.

Abstract: A pixel driver circuit includes a driving transistor, a first storage capacitor, a second storage capacitor, a threshold compensation unit, a data writing and a light-emitting control unit. The threshold compensation is configured to control the driving transistor to be turned on at a threshold compensation stage and discharge toward a resetting voltage line until the driving transistor is turned off. The data writing is configured to write a data voltage into a gate electrode of the driving transistor at a data writing stage. The light-emitting control is configured to enable the driving transistor to be turned on at a light-emitting stage, so as to drive a light-emitting element to emit light.

Abstract: Systems and methods are provided herein for managing, based on a portion of media asset consumed, power consumption of user equipment. A media guidance application may, upon determining that user inactivity time at a user equipment exceeds a threshold inactivity time, determine that a media asset currently being presented at the user equipment has not reached its end point. The media guidance application may then determine a playback duration for which the media asset has been presented. The media guidance application may, upon determining that the playback duration exceeds a threshold playback duration, continue monitoring user activity at the user equipment until the end point for the media asset is reached to determine an updated user inactivity time. The media guidance application may determine that the updated inactivity time exceeds the threshold inactivity time and in response, perform a power management process to reduce power consumption of the user equipment.

Abstract: Provided are a pixel, a display device including the same, and a driving method thereof. A pixel includes: an organic light-emitting diode including an anode and a cathode, a first transistor configured to provide a driving current flowing through the organic light emission diode, a second transistor configured to provide data to a gate of the first transistor in response to a scan signal, a capacitor configured to maintain a difference between a voltage level of the data and a threshold voltage of the first transistor, and a third transistor configured to: sense a change of the threshold voltage of the first transistor in response to a sensing signal, and transfer a reference voltage to a node coupled to the anode when the sensing signal is enabled, wherein a level of the reference voltage is lower than a threshold voltage of the organic light-emitting diode.

Abstract: This application relates to systems, methods, and apparatus for transitioning a display device between operating modes using a single dedicated pin of a circuit connected to the display device. The dedicated pin can receive a packet signal corresponding to an operating mode for the display device, and the circuit can thereafter cause the display device to transition into the desired operating mode in response to receiving the packet signal. The operating mode can be a low power on mode where an interface connected to the circuit is deactivated and at least some circuitry of the display device is throttled or powered off. The display device can be driven in an all black state while in the low power on mode, thereby allowing the display device to more quickly transition out of the low power on mode compared to when the display device is completely off.

Abstract: The present disclosure provides a gate driver on array (GOA) circuit. A low level signal source is used to output a low level signal, a first high level signal source is used to output a first high level signal, and the second high level signal source is used to output the second high level signal. A cascade signal latch module is used to latch a cascade signal of a current grade. A gate driving signal generating module generates a preparation gate driving signal of the current grade. A gate driving signal outputting module is used to output a gate driving signal of the current grade.

Abstract: A pixel compensation circuit is arranged for compensating the critical parameter associated with the electrical properties of the components in thin film transistors of an active matrix organic light emitting diode display or similar illumination systems to avoid uneven brightness resulted from the voltage drop effect. The pixel compensation circuit is defined in a sub-pixel area, wherein there are eight thin film transistors and one capacitor, and the circuit is operated by two control signals. In contrast, three control signals are required in the conventional technologies. The fewer control signals are required, which is benefit to the flexibility of the layout and design of specification.

Abstract: The present disclosure relates to a pixel compensation circuit and an AMOLED display device. The pixel compensation circuit includes a data signal writing sub-circuit, a high voltage signal writing sub-circuit, a first reference voltage writing sub-circuit, a second reference voltage writing sub-circuit, a voltage maintaining sub-circuit, a driving transistor, a capacitor, and a light emitting device. The data signal writing sub-circuit is connected to a first terminal of the capacitor, the first reference voltage writing sub-circuit is connected to a control electrode of the driving transistor, and the second reference voltage writing sub-circuit is connected to a drain of the driving transistor. The high voltage signal writing sub-circuit is connected to a second terminal of the capacitor, and the voltage maintaining sub-circuit is connected to the first terminal of the capacitor and the control electrode of the driving transistor.

Abstract: A touch controller includes a touch data generator that is connected to a plurality of sensing lines, the touch data generator sensing a change in capacitance of a sensing unit connected to each of the sensing lines and generating touch data by processing the sensing signal corresponding to the result of sensing; and a signal processor that controls a timing of generating the touch data by receiving at least one piece of timing information for driving a display panel from a timing controller, and then providing either the timing information or a signal generated from the timing information as a control signal to the touch data generator.

Abstract: An organic light emitting display device includes a display area and a non-display area. The display area includes display pixels at crossing areas of data lines, scan lines, and emission control lines. The non-display area includes auxiliary pixels at crossing positions of auxiliary data lines, scan lines, and emission control lines. The display device also includes a scan driver to supply scan signals to the scan lines, a first data driver to supply data voltages to the data lines, a second data driver to supply an auxiliary data voltage to the auxiliary data line, and a demultiplexer between the data lines and the first data driver.

Abstract: Embodiments related to an electronic device having an adaptive input row. The adaptive input row may be positioned within an opening of a device and include a cover for receiving a touch and a display that is configured to present an adaptable set of indicia. The adaptive input row may also include one or more sensors for detecting the location of a touch and/or the magnitude of a force of the touch. The adaptive input row may be positioned adjacent or proximate to a keyboard of the electronic device.

Abstract: A display panel having a fingerprint recognition function and a display apparatus is provided in present invention. The display panel includes a display region and a fingerprint recognition region, the display region comprising a plurality of first pixel unit, the fingerprint identification region comprising a plurality of second pixel units, each second pixel units comprising a display unit and a fingerprint identification unit; wherein the pixel aperture area of the first pixel unit is equal to the pixel aperture area of the display unit plus the pixel aperture area of the fingerprint identification unit; by the gray scale voltage compensation of the pixel in the fingerprint recognition region makes the pixel luminance in the display region and the pixel luminance in the fingerprint identification region is the same to achieve ensuring safety of an electronic device while allowing luminance uniformity of the display panel.

Abstract: A touch sensor integrated type display device includes: a display panel including: pixels connected to data lines and gate lines and division-driven into a plurality of panel blocks, and a plurality of touch sensors connected to the pixels, a display driving circuit providing data of an input image to the pixels in multiple display periods divided from one frame period, and a touch sensing circuit driving the touch sensors and sensing a touch input in a touch sensing period allocated between the display periods of the frame period, adjacent panel blocks being division-driven in the display periods that are separated from each other with the touch sensing period, in which the touch sensors are driven, interposed therebetween, the display driving circuit including a shift register: shifting a gate pulse in accordance with a shift clock timing, and sequentially supplying the gate pulse to the gate lines.

Abstract: The present application discloses an organic light emitting pixel driving circuit, an organic light emitting display panel and a driving method thereof. One embodiment of the organic light emitting pixel driving circuit comprises: a storage unit, a coupling unit, a data writing unit, a light emitting control unit, a reset unit, a data line, a first scanning line, a second scanning line, a light emitting control line, a reference voltage line, an initialization voltage line, a light emitting element and a driving transistor. By writing a compensation voltage to a second electrode of the driving transistor and then to a gate of the driving transistor through the coupling unit, the embodiment avoids a noise from a parasitic capacitance generated by a signal change on the data line to the gate of the driving transistor, therefore a stable display is achieves.

Abstract: The present application provides a transparent OLED display panel. By providing the second power supply line and the first data line in the transparent region of the transparent OLED display panel in the first metal layer and the second metal layer, respectively and makes the two insulating layer arranged in a stacking manner, and the second data line and the third data line are respectively provided in the first metal layer and the second metal layer and makes the two insulating layer arranged in a stacking manner, compared to the interval arrangement in the conventional technology, the area of the traces of the transparent region of the transparent OLED display panel can be greatly reduced, the transmittance of the transparent OLED display panel is enhanced and to facilitate the development of the high resolution transparent OLED display panel.

Abstract: The present application discloses a method of driving gate lines of a display panel. The method includes generating a gate scanning signal; and providing the gate scanning signal to a gate line of the display panel. The gate scanning signal includes two or more high voltage levels in consecutive two or more time periods of a single scanning stage for turning on each of a plurality of thin film transistors coupled to the gate line.

Abstract: There is provided television comprising a television display, a memory storing an executable code, a processor executing the executable code to receive an input selecting an ambient mode from a plurality of modes, including an on mode, an off mode and the ambient mode, wherein in the ambient mode the television display is on for presenting ambient content and not for presenting regular television content, request the ambient content from a server based on one of a default setting, a user profile, a user history, and a user preference, receive, in response to the request, the ambient content from the server, passively present the ambient content on the television display by periodically refreshing the ambient content from the server and periodically refreshing the ambient content on the television display without a user interaction.

Abstract: A circuit board and a display device are disclosed. The circuit board is configured to be bonded onto a display substrate; the circuit board includes a bonding connection end, which includes a base film and a plurality of first connecting terminals disposed on the base film; regions, which are corresponding to at least part of the first connecting terminals, of the base film comprises a transparent membrane material. The circuit board improves the product quality monitoring level during the bonding process, and decreases the product risks.

Abstract: A display adjusting device, a power source circuit, a display device and a display adjusting method are provided. The display adjusting device includes a start signal detection unit, configured to, in a case that a gate drive circuit including multiple stages of gate drive circuit units scans multiple rows of gate lines arranged in the display panel, detect a gate drive signal outputted by a last row of shift register unit included in each stage of gate drive circuit unit, where the gate drive signal serves as a start signal of a next stage of gate drive circuit unit adjacent to the stage of gate drive circuit unit, and a gamma main voltage setting unit, configured to set a corresponding gamma main voltage based on the start signal.

Abstract: An output device is disclosed herein. The output device includes a DC transmission cable and a connector. The DC transmission cable is configured to receive and transmit a DC voltage. The connector is connected to an output terminal of the DC transmission cable and configured to receive the DC voltage and output an output voltage. The connector includes a housing, a DC-DC converter and a output terminal. The DC-DC converter is enclosed in the housing and configured to convert the DC voltage to the output voltage. The output terminal includes a first node and a second node, and the first node is connected to the DC-DC converter, enclosed in the housing and configured to receive and transmit the output voltage.

Abstract: An electronic device and a method for controlling the electronic device, the method including receiving an input of a command to reproduce music contents, determining audio characteristics information on the music contents and situation information on an environment where the music contents are being reproduced; and displaying a visualization effect of visualizing the music contents using the audio characteristics information and the situation information, and reproducing the music contents.

Abstract: Disclosed are methods, systems and devices for operation of a circuit to boost a voltage at a load for a particular duration. A plurality of capacitors, each capacitor comprising at least a first terminal, may be coupled to an assisted node. At least a first capacitor and a second capacitor of the plurality of capacitors may maintain the assisted node at or about a target voltage for a duration. The second capacitor may be charged while the first capacitor is discharging in at least a portion of the duration.

Abstract: The liquid crystal drive apparatus controls application of a first or second voltage to each pixel of a liquid crystal element in respective sub-frame periods in one frame period to cause that pixel to form a tone. The sub-frame period where the first voltage is applied to the pixel is referred to as an ON period, the sub-frame period where the second voltage is applied to the pixel is referred to as an OFF period. The sub-frame period corresponding to the ON and OFF periods respectively for first and second pixels of two mutually adjacent pixels is referred to as an ON/OFF adjacent period. The apparatus provides, when causing the first and second pixels to form tones adjacent to each other, a plurality of the ON/OFF adjacent periods each being 1.0 ms or less separately from each other in the one frame period.

Abstract: A voltage generator includes: a transforming unit to transform an input voltage into an output voltage in response to a switching signal; a feedback voltage controller to compare the output voltage with a reference voltage when a start signal is activated, and to output a feedback voltage corresponding to the comparison of the output voltage with the reference voltage; and a power controller to compare the feedback voltage with the reference voltage, and to output the switching signal corresponding to the comparison of the feedback voltage with the reference voltage.

Abstract: A pixel may include a light emitting element, a first power supply terminal set, an initialization terminal, a capacitor, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, and a sixth transistor. The first power supply terminal set is electrically connected through no intervening transistor to each of the fourth transistor and the sixth transistor. The capacitor is electrically connected through no intervening transistor to each of the initialization terminal and the third transistor. Each of the first transistor and the fourth transistor is electrically connected through no intervening transistor to the second transistor. Each of the second transistor and the third transistor is electrically connected through no intervening transistor to the fifth transistor. Each of the fifth transistor and the sixth transistor is electrically through no intervening transistor to the light emitting element.

Abstract: An OLED data compensation circuit and method, and an OLED display device are disclosed. The OLED data compensation circuit includes: a sensing circuit for detecting a drifting amount of a threshold voltage of thin film transistors (TFTs); a timing controller connected with the sensing circuit for receiving the drifting amount, and outputting voltage control signals and source driving signals, which controlling a voltage of data signals outputted by a source driver; a reference voltage output circuit connected with the timing controller, is configured for outputting a first reference voltage in accordance with the voltage control signals, the voltage of the data signals and the first reference voltage are configured for compensating the drifting amount of the threshold voltage of the driving TFTs to compensate data of the OLED. In this way, the OLED data compensation is not limited only by the source driver, the OLED data compensation may be enhanced.