Abstract: A display panel includes: a pixel circuit, and a light-emitting element, that the pixel circuit includes a driving transistor configured to provide a driving current for the light-emitting element; a working process of the pixel circuit includes a data writing stage, in which a gate of the driving transistor receives a data signal, and a bias adjustment stage, in which a source or drain of the driving transistor receives a bias adjustment signal; and the pixel circuit has a frame refresh frequency F1, and a data refresh frequency including a first data refresh frequency F11 and a second data refresh frequency F22, that at least one second data refresh period includes N11 bias adjustment stages, a bias adjustment signal V11 is inputted in a first bias adjustment stage, and a bias adjustment signal Vi is inputted in an i-th bias adjustment stage, where V11?Vi.

Abstract: A driving controller of a display device, the controller including a segment divider configured to divide the image signal into a plurality of segments and define a predetermined number of adjacent segments among the plurality of segments as a segment block, an image signal adder configured to add up a gray scale value of the image signal of each of the predetermined number of adjacent segments and output the added-up gray scale values, an average gray scale calculator configured to receive the added-up gray scale values and output an average gray scale value, a correction circuit configured to output corrected added-up gray scale values obtained by adding a weight value to each of the added-up gray scale values on the basis of the average gray scale value, and a driving frequency determiner configured to determine the driving frequency of the display device on the basis of the corrected added-up gray scale values.

Abstract: A backlight brightness control method, a backlight brightness control device, and a display equipment are provided. By using a constant current integrated circuit to input constant current to backlight sources in backlight partitions, uniformity of backlight brightness is allowed to be improved. By determining a target peak current inputted to the backlight sources in the backlight partitions according to a grayscale level of partition images, not only can the backlight brightness required by a high grayscale level be ensured, but fine adjustment of the backlight brightness under a low grayscale level can also be ensured.

Abstract: The present disclosure provides a display substrate, including a display area and a peripheral area, where N pixel unit groups are arranged in the display area, and each pixel unit group is provided with a gate line, a first reset signal line and a second reset signal line; a driving module is arranged in the peripheral area and includes at least two driving circuits, at least two operating signal line groups are further arranged in the peripheral area, the driving circuits and the operating signal line groups are alternately arranged the at least two driving circuits include a gate driving circuit and a reset driving circuit provided with N second signal output terminals the ith second signal output terminal is coupled to the second reset signal line configured for the ith pixel unit group and the first reset signal line configured for the (i+1)th pixel unit group.

Abstract: A display system includes a light emitting array and a driving device. The light emitting array includes multiple scan lines, multiple drive lines and multiple light emitting elements. The driving device includes a controller, a charge balance line and a charge sharing circuit. The controller generates a control output. The charge sharing circuit is coupled to the drive lines, the charge balance line and the controller, and receives the control output from the controller. With respect to each of the drive lines, the charge sharing circuit is operable, based on the control output, to establish or not establish an electrical connection between the drive line and the charge balance line.

Abstract: A display panel and a driving method thereof are provided, including a time schedule controller and at least one driver integrated circuit (driver IC). Pulse width modulation (PCM) data between the time schedule controller and the driver IC is transmitted in a decoded manner, and pulse amplitude modulation (PAM) data is transmitted in an undecoded manner, reducing a transmission rate between the time schedule controller and the driver IC, and thereby reducing or eliminating risks of electromagnetic interference (EMI). Furthermore, using this transmission method can reduce the number of latches used in the driver IC.

Abstract: Image data for a current image frame may be compensated for transient response variations due to variations in display panel temperatures at various positions of the display panel by performing pixel drive compensation. The pixel drive compensation may be performed based at least in part upon display panel temperatures at various portions of the display panel. In this way, drive compensation corresponding to various temperature variations in a display panel may be implemented.

Abstract: A display driver for driving a display device including a pixel array is provided. The display driver includes a plurality of driving channels. The driving channels is configured to output driving signals in a pulse width modulation manner to drive the pixel array to illuminate in a first frame period which is being divided into a plurality of subframe periods. A first driving channel of the plurality of driving channels outputs a first driving signal in a first subframe period combination. A second driving channel of the plurality of driving channels outputs a second driving signal in a second subframe period combination different than the first subframe period combination. Each of the first subframe period combination and the second subframe period combination comprises at least one subframe period of the first frame period.

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

Abstract: A light emission driver includes a plurality of stages outputs a light emission control signal. Each of the stages includes an input circuit controlling voltages of a first node and a second node, an output circuit supplying a voltage of first power or a second power to an output terminal, a first signal processor controlling a voltage of a fourth node based on a signal supplied to a third input terminal and a voltage of a fifth node, a second signal processor controlling the voltage of the fourth node in response to the voltage of a third node, a first stabilizer limiting voltage drops of the first node and the second node, and a second stabilizer controlling an electrical connection between the third node and the first node in response to the voltage of the fourth node.

Abstract: A display device and a controlling method thereof are provided. The display device includes a display panel, a backlight unit, and a time schedule controller. The display panel is configured to display images. Areas where afterimages of dynamic images occur are identified according to comparison results of dither values. Tailing phenomenon of the dynamic images may be relieved by transmitting backlight data without brightness to a second backlight sub-area corresponding to where the afterimages occur. Furthermore, because frequency multiplication is not applied, risks of display instability will not increase.

Abstract: A pixel driving circuit, a method for driving the same, a display panel, and a display apparatus are provided. In the pixel driving circuit, a power voltage writing module includes an input terminal electrically connected to a power voltage signal line and an output terminal electrically connected to a driving module, a data voltage writing module includes an input terminal electrically connected to a data voltage signal line and an output terminal electrically connected to the driving module, and a light-emitting control module includes an input terminal electrically connected to the driving module and an output terminal electrically connected to the light-emitting module. A control terminal of the power voltage writing module, a control terminal of the light-emitting control module and a control terminal of the data voltage writing module are electrically connected to a first scan line.

Abstract: The present invention discloses a backlight control method having dynamic backlight adjusting mechanism used in a display control circuit is provided and includes the steps outlined below. A frame refresh time length of a former frame is obtained. When a current frame is started to be displayed, a backlight module is controlled to output a strobe backlight in a backlight turn-on time period. When an actual display time reaches the frame refresh time length and a next frame is not started to be displayed, the backlight module is controlled to output a constant backlight until the next frame is started to be displayed. When the actual display time does not reach the frame refresh time length and the next frame is started to be displayed, the backlight module is controlled to output the constant backlight until the frame next to the next frame is started to be displayed.

Abstract: An embodiment relates to an LED driving technique. The embodiment provides a technique of measuring a forward voltage reaching time of a currently driven LED by comparing a forward voltage sensed in a previous scan line and an LED voltage sensed in a current scan line, and compensating an ON period of a pulse width modulation (PWM) signal by the measured forward voltage reaching time.

Abstract: A power adapter configured to apply power to a device is disclosed. The power adapter comprises a switching module having a recess comprising a first set of contacts for receiving control signals, wherein the switching module comprises a switch for selectively applying power to a device based upon the control signals; and a control module removably coupled to the switching module and having a second set of contacts coupled to the first set of contacts of the switching module when the control module is attached to the switching module; wherein the switching module comprises a user interface element.

Abstract: A display apparatus include a display panel and a display panel driver. The display panel includes a panel block. The display panel driver senses a driving current to generate a sensing current, generates a temperature weight of the panel block based on the sensing current and location information of a circuit component, generates a load value of the panel block based on input image data, and generates a predicted temperature of the panel block based on the temperature weight of the panel block and the load value of the panel block.

Abstract: A display device includes a processor which supplies grayscale data in active periods of frame periods and stops supply of the grayscale data in blank periods of the frame periods, a timing controller which generates a change signal when a difference between a first blank period of a first frame period and a second blank period of a second frame period is greater than a threshold value, a power supply which supplies a first power voltage having a voltage level changed based on the change signal to a first power line, and pixels commonly connected to the first power line.

Abstract: Optical states in TIR-based image displays may be modulated by movement of electrophoretically mobile particles into and out of the evanescent wave region at the interface of a high refractive index convex protrusions and a low refractive index medium. The movement of particles into the evanescent wave region may frustrate TIR and form dark states at pixels. Movement of particles out of the evanescent wave region may allow for TIR of incident light to form bright states at pixels. The movement of the particles may be controlled by employing the drive methods of pulse width modulation, voltage modulation or a combination thereof.

Abstract: Corporate information technology (IT) networks can protect sensitive data sent to computers located outside of the corporate IT network. For example, a computer located outside of the corporate IT network may receive a message that instructs the computer to operate in a data protection mode in which the computer reduces a frame rate of a monitor of the computer from a first frame rate to a lower second frame rate. In this example, the computer receives sensitive information that includes sensitive visual content to be displayed on the monitor and displays the sensitive visual content on the monitor configured to operate at the second frame rate.

Abstract: A timing controller includes a receiver and a processor. The receiver is configured to receive image signals of image frames to be displayed. The processor is configured to determine refresh rates of the image frames to be displayed according to the image signals of the image frames to be displayed, and output different control signals according to different refresh rates of the image frames to be displayed.

Abstract: A display system comprising a plurality of display controller circuits controlling a like number of independent segments of pixel drive circuits of a backplane. Each pixel drive circuit comprises a memory element and associated pixel drive circuitry. The segments of the backplane may be organized vertically. The word line for the memory cells of a first segment of pixel drive circuits passes underneath a second segment of pixel drive circuits without directly interacting with the pixel drive circuits of the second segment in order to reach the pixel drive circuits of the first segment. The plurality of display controller circuits operate asynchronously but are kept at the same frame rate by an external signal such as Vsync.

Abstract: The present disclosure generally relates to a method of sensing characteristic value of circuit element and display device using it, which may shorten the threshold voltage sensing and compensation time of the driving transistor and the threshold voltage compensation time driving transistors by sensing the threshold voltage in a mobility sensing period of the driving transistor, calculate the threshold voltage using two or more sensing values of driving current for the driving transistor.

Abstract: Techniques for determining coherency between composite images having phase and amplitude components are disclosed. The coherency can be determined based on the amplitude components of the images, by providing first and second amplitude images indicative of amplitude values of pixels of a respective first and second composite images, applying to each of the first and second amplitude images a first directional derivative operator and a second directional derivative operator, thereby generating for each of the amplitude images respective first directional derivative image and second directional derivative image thereof, and generating a first coherency map based at least on the directional derivative images of the first and second amplitude images. The first coherency map is indicative of decorrelation between the first and second composite images.

Abstract: Certain embodiments are directed to techniques (e.g., a method, an apparatus, and non-transitory computer readable medium storing code or instructions executable by one or more processors) for mitigating the flicker on the displays at low driving frequencies due to drops of the voltage holding ratio of the materials for the display. The techniques to compensate for flicker in a liquid crystal display can include generating a dynamic waveform for the backlight of the display. The dynamic waveform can be synchronized with the driving rate of the liquid crystal display such that the luminosity of the backlight increases during periods when the voltage-holding ratio drops in the materials of the display. In this way, a liquid crystal material can be utilized in a display to generate reduced power consumption with liquid crystal rate minimizing the flicker in response to the drops of the voltage-holding ratio.

Abstract: A driving method of LED display, configured to be applied to an LED display capable of varying a refresh rate thereof and able to reduce brightness changes due to refresh rate variation, is disclosed in the present disclosure. This driving method includes: controlling an organic light-emitting diode of the LED display by an emission signal having a plurality of frame periods, with each of the frame periods having a PWM part with a duty ratio; detecting whether a change in the refresh rate of the LED display exists; and performing a compensation procedure when the change is detected, with the compensation procedure compensating a brightness difference of the organic light-emitting diode occurring due to the change in the refresh rate by adjusting the duty ratio of the PWM part. Said LED display is also disclosed.

Abstract: Disclosed are a method for driving a silicon-based driving back plate and a display apparatus. The method includes: acquiring a watch position of a user on the silicon-based driving back plate within one frame time; determining a watch region of the user on the silicon-based driving back plate according to the watch position; and controlling a sum of an analog modulation bit for analog scanning charging and a digital modulation bit for digital scanning charging performed on each row of pixels in the watch region to be greater than a sum of an analog modulation bit for analog scanning charging and a digital modulation bit for digital scanning charging performed on each row of pixels in a non-watch region.

Abstract: A display device includes a pixel. The pixel includes an emission unit and a pixel circuit. The pixel circuit to provide a first driving current to the emission unit in a first current flowing direction in a first mode, and to provide a second driving current to the emission unit in a second current flowing direction different from the first current flowing direction in a second mode. The emission unit includes a first electrode and a second electrode spaced from each other, a first light emitting element connected between the first electrode and the second electrode in the first current flowing direction, and a second light emitting element connected between the first electrode and the second electrode in the second current flowing direction.

Abstract: A projector of the present invention includes a light source unit including a semiconductor light emitting element and a color wheel and emitting lights in first and second wavelength ranges in time division, a display device receiving light source light to form image light, a projection optical system for projecting the image light onto a projection target, a delay time setting module for shifting a start timing of a color mixing period when the lights in the first and second wavelength ranges are emitted in a mixed fashion in a spoke period of the color wheel during which emissions of the lights in the first and second wavelength ranges are switched over based on an index indicating a brightness of light from the light source unit, and a light source driving module for driving the light source unit based on a setting set by the delay time setting module.

Abstract: The present specification provides a display apparatus allowing brightness of a display panel to be more finely controlled as compared with the related art. The display apparatus according to the present specification includes a display panel in which a plurality of pixels are arranged in m×n, and K shift register units configured to sequentially output pulse signals having a width adjusted to adjust brightness of the display panel to m horizontal pixel lines, wherein each of the shift register units includes m main flip-flops and m?1 sub-flip-flops connected between the in main flip-flops.

Abstract: Aspects of the subject technology relate to control circuitry for light-emitting diodes. The control circuitry may include feedforward control and a feedback control for a power supply for the light-emitting diodes. The feedforward control may include host circuitry for the device that determines a maximum zone current, a maximum row current, and the maximum row-to-row current step for an upcoming backlight frame while a current backlight frame is being executed. A headroom voltage for the upcoming backlight frame is determined based on the maximum zone current, the maximum row current, and/or the maximum row-to-row current step and provided to the power supply so that the power supply can settle at a corresponding supply voltage before the upcoming backlight frame is executed. The feedback control utilizes dynamic thresholds determined for each backlight frame to fine tune the feedforward-determined headroom voltage.

Abstract: A display device includes: a substrate including a display area and a non-display area; pixels connected to first scan lines, second scan lines, third scan lines, and emission control lines; a first scan driver supplying a first scan signal to the first scan lines; a second scan driver supplying a second scan signal to some of the second scan lines and supplying a third scan signal to the third scan lines; an emission driver supplying an emission control signal to the emission control lines; a first pad and a second pad provided in the non-display area; a first power line connected to the first pad, the first power line transferring a first voltage to the first scan driver and the emission driver; and a second power line connected to the second pad, the second power line transferring a second voltage to the second scan driver.

Abstract: A pixel of a display device includes a capacitor; a light emitting diode; and first, second, third, and fourth transistors. The display device has a normal frequency mode and a low frequency mode. Two electrodes of the capacitor are respectively connected to a first voltage source and a gate node. A gate electrode of the first transistor is connected to the gate node. In a hold period in the low frequency mode, both the second and third transistors receive a scan signal, the third transistor diode-connects the first transistor, the fourth transistor receives an initialization signal and transfers an initialization voltage to the gate node, the scan signal is at a first off voltage level, and the initialization signal is at a second off voltage level unequal to the first off voltage level. The cathode of the light emitting diode is connected to a second voltage source.

Abstract: Certain aspects are directed to a circuit for brightness control. The circuit generally includes: a duty cycle adjustment circuit configured to receive a first backlight control signal having a first duty cycle and generate a second backlight control signal having a second duty cycle, the second duty cycle being greater than the first duty cycle if the first duty cycle is less than a threshold; a digital processor configured to set a value of a software brightness code based on the second duty cycle; and a backlight control circuit configured to drive a backlight in accordance with the software brightness code and the second duty cycle of the second backlight control signal.

Abstract: A pixel circuit includes: an organic light emitting diode (OLED); a first transistor having first and second electrodes and a first gate electrode; a second transistor connected between a data line and the first electrode, controlled by a first scan line; a third transistor connected between the second electrode and the a electrode of the first transistor, controlled by the first scan line; a fourth transistor connected between the first gate electrode and a first initialization voltage line, controlled by a second scan line; a fifth transistor connected between a power line and first electrode, controlled by a first emission line; a sixth transistor connected between the second electrode and the OLED and controlled by a second emission line; and a storage capacitor connected between the first gate electrode and the power line, wherein the first emission line and the second emission line are located at different nodes.

Abstract: An electronic device and a method of controlling a screen of the electronic device, and a storage medium. The electronic device includes a screen including at least one multiplexing function region; a function module disposed below the screen, a location of the function module corresponds to a location of the at least one multiplexing function region; controlling the at least one multiplexing function region to be in a first state when receiving a startup instruction of the function module, so that the function module transmits a signal through the at least one multiplexing function region.

Abstract: A display device may include a pixel set, a timing controller, a data driver, and a scale factor provider. The pixel set that may include pixels. The pixels may be divided into pixel groups. The timing controller may calculate first load values corresponding to an image frame of input image data and may generate image data by scaling gradation values of the input image data using scale factors. The data driver may generate data signals corresponding to the image data and may supply the data signals to the pixel set. The scale factor provider may calculate the first load values and one or more second load values based on temperature data corresponding to a temperature of the pixel set and may generate the scale factors based on the one or more second load values and a common current value of a current received by the pixels.

Abstract: An electronic device is provided, including a display panel and a processor. The display panel is configured to display image data and includes a backlight module, and the processor is electrically connected to the display panel. The processor averages current values of the backlight module corresponding to the image data in a first time period, to generate an average current value, and compares the average current value with a current threshold. When the average current value is greater than the current threshold, the processor generates an adjusted maximum current value, and correspondingly reduces current values of the backlight module in a second time period according to the adjusted maximum current value, to reduce a temperature of the electronic device. A temperature adjustment method of an electronic device is also provided.

Abstract: An embodiment of the present invention provides a light emitting display device including a display panel including M (M being an integer equal to or greater than 2) subpixels sharing a single sensing line, and a circuit for sensing elements included in at least one of the M subpixels through the sensing line. A first subpixel from among the M subpixels can be defined as a sensing subpixel, a second subpixel can be defined as a non-sensing subpixel. The second subpixel can have an initial period for applying an initialization voltage for a time longer than a data writing period for applying a sensing voltage to the first subpixel.

Abstract: A display panel, a display device and a driving method are provided. The display panel includes a subpixel array; among the subpixels in a same row, the subpixels input with the first voltage data signal and the subpixels input with the second voltage data signal are alternately arranged; in adjacent two of the pixels in the same column, the subpixels with a same color each are input with a first voltage data signal and a second voltage data signal.

Abstract: A display device has a timing controller and a microdriver. The timing controller receives multiple bit sequences of image data for multiple pixels of the display device. The timing controller also reorders the multiple bit sequences based on a significant bit position within the multiple bit sequences. Each of the multiple bit sequences corresponds to a respective individual pixel of the multiple pixels. The microdriver receives the reordered multiple bit sequences and drives the multiple pixels using the reordered plurality of bit sequences.

Abstract: A display device includes: a light source unit having: a first light source to emit first light having a first peak wavelength; and a second light source to emit second light having a second peak wavelength, the second peak wavelength being shorter than the first peak wavelength; a wavelength conversion member to absorb the second light and convert the second light into first color light and second color light, each of the first and second color light having peak wavelengths different from the first and second peak wavelengths; and a display panel having a first pixel area to display the first color light, a second pixel area to display the second color light, and a third pixel area to display the first light, wherein the first peak wavelength and the second peak wavelength have a value of about 365 nm or more to about 500 nm or less.

Abstract: A passive matrix LED display driving scheme based on subframe pulse width modulation (PWM) to increase frame scan rate and further with channel-to-channel compensation is provided. The scheme may comprise: dividing each frame of the display video into T number of subframes; converting a driving signal for a pixel into a N-bit driving data, compensating the driving data with a compensation value; mapping the compensated driving data into the T number of subframes respectively.

Abstract: A display apparatus includes a display panel, a data driver and a driving controller. The display panel is configured to display an image based on input image data. The data driver is configured to output a data voltage to the display panel. The driving controller includes a frequency adjuster circuit configured to determine a driving frequency of the display panel, and a dithering circuit configured to change a grayscale value of the input image data according to frames. The frequency adjuster circuit is configured to determine the driving frequency of the display panel based on the input image data and based on whether the dithering part is activated.

Abstract: The present application provides a display panel adjustment method and an adjustment method for a display panel. A fan-out mura region of the display panel is divided into multiple first sub-regions along a first direction; according to an initial grayscale value of a first bonding point in the first sub-region, the fan-out mura degree and a first correction value of the corresponding first sub-region are obtained; and then grayscale compensation is performed on the corresponding first sub-region. The present application improves the mura effects in the fan-out region and improves the display quality of a product.

Abstract: Provided are a driving method for a display panel and a driving device thereof. The driving method includes: dividing pixels into bright pixels and dark pixels that are in a cross arrangement; converting driving signals into bright region driving signals and dark region driving signals; and driving the bright pixels and the dark pixels respectively by using the bright region driving signals and the dark region driving signals.

Abstract: A display device comprises a plurality of pixels arranged in a first direction and a second direction intersecting the first direction, a plurality of sub-pixels included in each of the plurality of pixels, a first LED chip included in one of the plurality of sub-pixels and emitting light at a first luminosity L1, a second LED chip included in the one of sub-pixel and emitting light at a second luminosity L2, a first wiring supplying a first voltage corresponding to the first luminosity L1 to the first LED chip, a second wiring supplying a second voltage corresponding to the second luminosity L2 to the second LED chip. The first luminous intensity L1 of the first LED chip is calculated based on an equation (1) using a chip area S1 and a luminance EQEL1 of the first LED chip, L1=S1×EQEL1??(1).

Abstract: Disclosed herein is a display device for preventing a luminance floatation phenomenon in a low grayscale region. The display device includes a display panel, an external input interface configured to receive an image signal from an external device, and a controller configured to adjust a gamma value when an input frequency of the image signal is less than an output frequency of the display panel and a variable refresh rate (VRR) function for changing the output frequency according to the input frequency is activated and to output the image signal to the display panel based on the adjusted gamma value.

Abstract: This application relates to a driving method of a display panel. The method includes: dividing sub pixels of the display panel into a plurality of sub pixel groups, each sub pixel group including the same quantity of color sub pixels; for each of the sub pixel groups, respectively adjusting a gamma value of a curve of brightness of each color sub pixel changing with a drive voltage; and for each sub pixel group, adjusting the adjusted gamma value according to a color property of the sub pixel group.

Abstract: A display device may include a pixel, an emission control driver, and a timing controller. The emission control driver may supply an emission control signal set for controlling emission periods of the pixel. The timing controller may receive a received bit stream that includes a first bit set and a second bit set, may determine a first duty ratio of the emission control signal set using bits of the first bit set without using any bit of the second bit set. The first bit set may include at least two bits. The second bit set may include at least one bit. The emission control signal set may control the pixel to operate according to the first duty ratio for each frame of a first frame group.

Abstract: An image quality optimization method based on local dimming includes: based on an input image signal, calculating a PWM duty cycle of a current image signal corresponding to each of backlight regions; comparing a preset first PWM duty cycle and a preset second PWM duty cycle with each PWM duty cycle of the current image signal corresponding to each of the backlight regions to determine whether there exists a high backlight region and a low backlight region in the backlight regions; in determining that there exists the high backlight region and the low backlight region, decreasing a PWM duty cycle of the low backlight region to decrease an output current, and increasing a PWM duty cycle of the high backlight region to increase an output current, thereby increasing a contrast of the current image signal. The present application also provides related apparatus and computer readable storage medium.