Abstract: A scan driver includes a charging part configured to charge a next scan signal in response to a sensing selection signal in an active period of a frame period, and an output control part configured to output the second clock signal in response to a voltage charged in the charging part in a vertical blank period of the frame period.

Abstract: A display apparatus includes a display panel, a first gate driver, a second gate driver, a third gate driver, and a data driver. The display apparatus is operable in a low frequency driving mode, and the low frequency driving mode includes a writing frame and a holding frame. At least one of gate power voltages used to generate a first gate signal, a second gate signal, and an emission signal has a first voltage level in the writing frame of the low frequency driving mode and a second voltage level in the holding frame of the low frequency driving mode. The data voltage is applied to the pixel in the writing frame of the low frequency driving mode. The data voltage applied to the pixel in the writing frame of the low frequency driving mode is maintained in the holding frame of the low frequency driving mode.

Abstract: A display apparatus including: a display panel configured to display an image based on input image data; a data driver configured to output a data voltage to the display panel; and a driving controller configured to determine a driving frequency of the display panel based on flicker values for grayscale values of the input image data and output a driving frequency signal representing the driving frequency of the display panel to a host.

Abstract: A display device has a display area with a first area in which a fingerprint is recognized and a second area in which a fingerprint is not recognized, and a non-display area. A fingerprint sensing unit is disposed to overlap with the first area. A first pixel set is disposed to overlap with the first area, and a second pixel set is disposed to overlap with the second area, each set including a plurality of pixels. A first voltage signal is provided to the first pixel set as a variable frequency signal, and includes a first period during which the first voltage signal is a first frequency signal, a second period during which the first voltage signal is a second frequency signal having a lower frequency than the first frequency signal, and a third period during which the first voltage signal is the first frequency signal.

Abstract: A display device includes data lines, scan lines, and pixels. Each of the pixels includes an organic light emitting diode, a first transistor (OLED), and a second transistor. The first transistor is electrically connected to an anode of the OLED. The second transistor is electrically connected to the first transistor, a scan line among the scan lines, and a data line among the data lines. The second transistors of the pixels may receive instances of a reference voltage from the data lines during a first period of a frame. The second transistors of the pixels may simultaneously receive instances of a turn-on scan signal from the scan lines during the first period of the frame. Cathodes of the OLEDs of the pixels may receive instances of a turn-off voltage for the OLEDs to turn off during the first period of the frame.

Abstract: A display device includes a plurality of pixels respectively coupled to first scan lines, second scan lines and data lines; and a scan driver to supply first scan signals to the first scan lines and second scan signals to the second scan lines, wherein the pixel includes a first transistor having a gate electrode connected to a first node, one electrode connected to a first power line, and other electrode connected to a second node; a second transistor having a gate electrode connected to a first scan line, one electrode connected to a data line, and other electrode connected to the first node, the second transistor being turned on in a first time period of a frame when the first scan signal is applied; a third transistor having a gate electrode connected to a second scan line, one electrode connected to the second node, and other electrode connected to an initialization line, the third transistor being turned on in the first time period and at least one second time period of the frame when the second scan si

Abstract: A scan driver includes a charging part configured to charge a next scan signal in response to a sensing selection signal in an active period of a frame period, and an output control part configured to output the second clock signal in response to a voltage charged in the charging part in a vertical blank period of the frame period.

Abstract: An organic light emitting display device includes a display part including a plurality of scan lines, a plurality of data lines, a plurality of power source lines, and a plurality of pixels each including an organic light emitting diode, a driving transistor coupled to the organic light emitting diode and to a power source line of the power source lines, and a switching transistor coupled to a scan line of the scan lines and to a data line of the data lines, and a sensing driver configured to sample a sensing current from the power source line while a sensing data voltage is applied to one of the pixels, and to calculate a threshold voltage value of the driving transistor using the sensing current in a sensing mode.

Abstract: A pixel and a display device including the same. The pixel includes: a pixel circuit configured to control the amount of current to be supplied to an organic light-emitting diode in response to a data signal provided from a data line; and a light sensor circuit coupled between the data line and the pixel circuit and configured to control the amount of current to be supplied to the pixel circuit in response to incident light.

Abstract: A display device includes data lines, scan lines, and pixels. Each of the pixels includes an organic light emitting diode, a first transistor (OLED), and a second transistor. The first transistor is electrically connected to an anode of the OLED. The second transistor is electrically connected to the first transistor, a scan line among the scan lines, and a data line among the data lines. The second transistors of the pixels may receive instances of a reference voltage from the data lines during a first period of a frame. The second transistors of the pixels may simultaneously receive instances of a turn-on scan signal from the scan lines during the first period of the frame. Cathodes of the OLEDs of the pixels may receive instances of a turn-off voltage for the OLEDs to turn off during the first period of the frame.

Abstract: A display device has a display area with a first area in which a fingerprint is recognized and a second area in which a fingerprint is not recognized, and a non-display area. A fingerprint sensing unit is disposed to overlap with the first area. A first pixel set is disposed to overlap with the first area, and a second pixel set is disposed to overlap with the second area, each set including a plurality of pixels. A first voltage signal is provided to the first pixel set as a variable frequency signal, and includes a first period during which the first voltage signal is a first frequency signal, a second period during which the first voltage signal is a second frequency signal having a lower frequency than the first frequency signal, and a third period during which the first voltage signal is the first frequency signal.

Abstract: An integration driver includes a plurality of stages. Each of the plurality of stages includes a scan signal generator including first to third nodes and a fifth node and an emission control signal generator including a fourth node and sixth node. The scan signal generator is configured to generate a first signal provided to a first node, a second signal provided to a second node, and a third signal provided to a third node using a first clock signal, a second clock signal, and a start signal or a carry signal, and generate a scan signal using the second signal and the third signal. The emission control signal generator is configured to generate a fourth signal provided to a fourth node using the third signal and the second clock signal, and generate an emission control signal using the first signal and the fourth signal.

Abstract: A display device includes a first display region, a second display region, a first lens, and a second lens. The first display region includes a first pixel subset and may display a first image. The first image includes a first sub-image corresponding to the first pixel subset and smaller than the first image. The second display region neighbors the first display region, includes a second pixel subset, and may display a second image. The second image includes a second sub-image corresponding to the second pixel subset and smaller than the second image. The second pixel subset is not identical to the first pixel subset. The first lens may show the first sub-image without providing the entire first image. The second lens may show the second sub-image without providing the entire second image when the first lens shows the first sub-image.

Abstract: An image processor includes a scaling unit configured to output converted data by resizing first image data; and a rendering unit configured to receive second image data, to output rendering data by rendering the second image data, and to calculate a target rendering data value based on data values corresponding to a first block of M*N among the second image data, where each of M and N is an integer greater than or equal to 2. Here, the second image data is the converted data, or the first image data is the rendering data.

Abstract: Provided herein may be an organic light emitting display device including: pixels coupled both to power source lines and scan lines that are formed on respective horizontal lines, and to data lines formed on respective vertical lines; a scan driver configured to supply scan signals to the scan lines; a first power source driver configured to supply first power sources to the power source lines; and a data driver configured to supply data signals to the data lines. The first power source driver may control light emitting operations of the pixels by successively stopping the supply of the first power sources to the power source lines.

Abstract: A head mounted display system includes an infrared sensor generating an infrared image, an image processor measuring a position of a user pupil based on the infrared image and generating image source based on the position of the user pupil, and an organic light emitting display device displaying an image corresponding to the image source. The organic light emitting display device includes a display panel and a panel driver. The display panel includes a plurality of infrared pixels disposed in an infrared emission region, the infrared pixels emitting infrared light, and a plurality of display pixels disposed in a display region, the display pixels emitting visible light. The panel driver provides driving signals to the infrared pixels and the display pixels.

Abstract: A gate driving circuit includes: a pull-up controller applying a carry signal of one of previous stages to a first node in response to the carry signal of the one of the previous stages; a pull-up part outputting a clock signal as an N-th gate output signal; a carry part outputting the clock signal as an N-th carry signal; a first pull-down part pulling down the signal at the first node to a second off voltage; a second pull-down part pulling down the N-th gate output signal to a first off voltage; an inverting part generating an inverting signal based on the clock signal and the second off voltage to output the inverting signal to an inverting node; and a reset part outputting a reset signal to the inverting node.

Abstract: There is provided a stage circuit capable of minimizing a mounting area. The stage circuit includes: an output unit configured to supply a voltage of a first node, an i-th (i is a natural number) carry signal, and to supply an i-th scan signal in response to the voltage of the first node, a voltage of a second node, and a first clock signal, a controller configured to control the voltage of the second node in response to the first clock signal; a pull-up unit configured to control the voltage of the first node in response to a carry signal of a previous stage and a voltage of a first node of the previous stage, and a pull-down unit configured to control the voltage of the first node in response to the voltage of the second node and a carry signal of a next stage.

Abstract: There is provided a display device including a display including a first pixel connected to a first data line and a second pixel connected to a second data line, a data signal generator configured to generate an output signal, and a signal divider configured to divide the output signal, to generate a first data signal and a second data signal, and to apply the first data signal and the second data signal to the first data line and the second data line, respectively, wherein the data signal generator is configured to generate the output signal based on a coupling effect of a first parasitic capacitor formed between the first data line and the second data line and a coupling effect of a parasitic capacitor of a data line formed by the first data line and second data line.

Abstract: A gate driver includes a plurality of stage circuits to output a clock signal from the outside as gate signals. A jth stage circuit includes an input unit to charge a first node at an initial voltage when a first input signal is input to a first input terminal, a buffer unit to output the clock signal as a gate signal to an output terminal when the initial voltage is supplied to the first node, a holding unit to maintain the first node at a reset power source level when the clock signal is supplied to the holding unit, and an inverter unit to supply the clock signal or the reset power source to the holding unit. The input unit maintains the first node at a second input signal input voltage to a second input terminal when a third input signal is input to a third input terminal.