A display apparatus, a display panel, and a driving method thereof, and a method of detecting a pixel circuit are described. The display panel of the present disclosure includes a pixel unit and a detection apparatus, and the pixel unit includes a pixel circuit and a light-emitting element. The pixel circuit includes a first transistor, a second transistor, a driving transistor, and a storage capacitor. The detection device is configured to: turn off the first transistor and the second transistor, and detect an amount of current leakage of the driving transistor leaked through the sensing line to obtain a first current leakage parameter; detect a first characteristic parameter of the driving transistor to obtain a first reference characteristic parameter; and determine a first target characteristic parameter according to the first current leakage parameter and the first reference characteristic parameter.

A display device includes a display panel, a scan driver, a data driver, a sensing circuit, and a controller configured to select a pixel row from a plurality of pixel rows in a vertical blank period of each frame period. The vertical blank period includes a sensing time in which the sensing circuit performs a sensing operation for the selected pixel row. The sensing circuit measures a first source voltage of a driving transistor of each pixel in the selected pixel row at a first time point of the sensing time, and measures a second source voltage of the driving transistor at a second time point of the sensing time. The controller predicts a current saturated source voltage of the driving transistor based on the first and second source voltages, and determines a threshold voltage change amount of the driving transistor based on a difference between a previous saturated source voltage and the current saturated source voltage.

A light control panel including an image display region including a region corresponding to an image display region in a display panel and a region corresponding to a peripheral circuit region in the display panel is provided between the display panel and a backlight. A pattern image for controlling radiation of light emitted from the backlight to the display panel is displayed in the image display region in the light control panel according to an action state of the peripheral circuit in the display panel.

A display device including: first pixels connected to a first write line and a first compensation line; second pixels connected to a second write line and a second compensation line; third pixels connected to a third write line and a third compensation line; fourth pixels connected to a fourth write line and a fourth compensation line; fifth pixels connected to a fifth write line and a fifth compensation line; sixth pixels connected to a sixth write line and a sixth compensation line; seventh pixels connected to a seventh write line and a seventh compensation line; and eighth pixels connected to an eighth write line and an eighth compensation line, the first to fourth compensation lines are connected to a first node, the fifth and sixth compensation lines are connected to a second node, the seventh and eighth compensation lines are connected to a third node.

An electronic device includes a main processor that provides an image signal and an image-sticking correction signal, and a display module that receives the image signal and the image-sticking correction signal and outputs an image data signal obtained by compensating for the image signal. The display module includes a compensation circuit that calculates cumulative stress based on the image data signal and outputs an image-sticking compensation signal and a compensation adjuster that outputs the image data signal obtained by correcting the image signal based on the image-sticking correction signal and the image-sticking compensation signal. The image-sticking correction signal is input by a user manipulation.

An OLED display system is provided having visual performance pixel compensation for loss of brightness, including display pixels, where each display pixel has OLED subpixels and pixel drive circuitry; a sensing system having sensors and analog to digital conversion circuitry connected to each of the sensors, and a processor to provide an image data drive signal to each of the display pixels, receive the sensor signal from the ADC circuitry for each sensor, estimate a state of degradation of at least one of the display pixels, determine a drive-signal compensation for each display pixel having an estimated state of degradation and compensate the image data drive signal to each display pixel having an estimated state of degradation. Methods for compensating pixels for an image in a display are also provided.

A display panel including a first current source and a first pixel unit is provided. The first pixel unit includes a first switch and a first light-emitting diode. The first switch is coupled to the first current source and receives a first scan signal. When the first scan signal is enabled, the first switch is turned on and receives a first current provided by the first current source. The first light-emitting diode is coupled to the first switch. When the first switch is turned on, the first current passes through the first light-emitting diode to turn on the first light-emitting diode.

A light emitting apparatus comprising a plurality of pixels with different light emitting colors, each of the plurality of pixels includes a light-emitting element configured to emit light with one of at least three different light emitting colors, a driving transistor configured to supply a current to the light-emitting element in accordance with a voltage supplied to a gate, a write transistor configured to supply a signal voltage from a signal line to the gate of the driving transistor, and a capacitance at a connection portion between the driving transistor and the write transistor, wherein the capacitance is different for each light emitting color, and is larger in a pixel of a light emitting color in which a peak current flowing through the light-emitting element is larger.

A display device includes a display panel including gate lines and pixels connected to the gate lines, and a gate driver including plural stages providing gate signals to the gate lines. A first stage among the stages includes a node controller including an input terminal and configured to control a voltage of a first control node and a voltage of a second control node, and an output unit connected to a first gate power source line and configured to output a first gate power source voltage of the first gate power source line as a gate signal through an output terminal in response to the voltage of the first control node. The node controller includes a first auxiliary transistor connected in the form of a diode between the input terminal and the second control node and a boosting capacitor connected between the second control node and the output terminal.

A pixel circuit includes: a data writing circuit configured to write a data voltage provided by a a data line to a second node; a light emission control circuit configured to control connection/disconnection between a third node and a first electrode of a light-emitting device; a reset compensation circuit configured to connect a first node to the third node, write a voltage at the first electrode of the light-emitting device to the first node when the third node is connected to the first electrode of the light-emitting device to reset the first node, acquire a threshold voltage of the driving transistor when the third node is disconnected from the first electrode of the light-emitting device, write a first voltage to the second node, and write a light emission voltage to the first node; and a driving transistor configured to generate a driving current according to the light emission voltage.