A display device includes an afterimage compensator generating output grayscales by applying at least one of first and second weights to input grayscales when the input grayscales correspond to a still image, and pixels displaying an image based on the output grayscales. The afterimage compensator applies the first weight having an initial value greater than 1 to the input grayscales of a first group, and converges the first weight to 1, and applies the second weight having initial values less than 1 to the input grayscales of a second group, and converges the second weights to 1.

A light-emitting display apparatus includes a display panel configured to display an image, a data driving circuit configured to apply a data voltage to the display panel, and a signal applying circuit configured to apply a data voltage output from a first channel of the data driving circuit to one of at least two data lines disposed on the display panel, in which the signal applying circuit includes a compensation circuit configured to prevent a data voltage increase due to signal coupling when the data voltage output from the first channel is applied to one of the at least two data lines.

A light-emitting display apparatus includes a display panel configured to display an image, a data driving circuit configured to apply a data voltage to the display panel, and a signal applying circuit configured to apply a data voltage output from a first channel of the data driving circuit to one of at least two data lines disposed on the display panel, in which the signal applying circuit includes a compensation circuit configured to prevent a data voltage increase due to signal coupling when the data voltage output from the first channel is applied to one of the at least two data lines.

A display device includes a substrate, a first light-emitting element, a second light-emitting element, and a third light-emitting element on the substrate, each of the first, second, and third light-emitting elements includes a first semiconductor layer, an active layer, a second semiconductor layer, and a third semiconductor layer, an opening formed in the second semiconductor layer and the third semiconductor layer of the third light-emitting element, and a wavelength conversion member located at the opening, wherein the first light-emitting element and the third light-emitting element are configured to emit first light, and the second light-emitting element is configured to emit second light, and the wavelength conversion member is configured to convert the first light from the third light-emitting element into third light.

A display device is disclosed that includes a plurality of pixels and a plurality of code pixels. The pixels include light-emitting elements, which display an image. The code pixels are disposed in the same layer as the pixels and are adjacent to a reference point disposed between the pixels. The code pixels include infrared light-emitting elements, which emit infrared light. At least one of the code pixels, disposed in a particular direction from the reference point, emit the infrared light to provide a code pattern having position information.

Provided is a pixel driving circuit configured to provide a signal to a to-be-driven element. The pixel driving circuit includes: a current control sub-circuit, configured to transmit a current signal; a time length control sub-circuit, configured to transmit a time signal; and an output sub-circuit, electrically connected with the time length control sub-circuit and the current control sub-circuit, respectively; where the time length control sub-circuit is further configured to control the output sub-circuit to be turned on or off based on the time signal; the output sub-circuit is configured to, when turned on, control a current applied to the to-be-driven element based on the current signal, where duration of two adjacent turn-ons of the output sub-circuit is same and duration of two adjacent turn-offs of the output sub-circuit is same.

A display substrate and a display device are provided. The display substrate includes: a base substrate, including a display region; a plurality of pixel units, located in the display region, each of the plurality of pixel units including a pixel circuit structure and a light-emitting element, the light-emitting element including a first electrode, the first electrode being located at a side of the pixel circuit structure away from the base substrate, the plurality of pixel units including a first pixel unit and a second pixel unit that are adjacent to each other in a first direction; a first initialization signal line, extending in the first direction; a light-emitting control signal line, extending in the first direction; a first power line, extending in a second direction, the second direction intersecting with the first direction; a first data line, extending in the second direction, the first data line being connected with the pixel circuit structure of the first pixel unit; a second data line, extending in the second direction, the second data line being connected with the pixel circuit structure of the second pixel unit, the first data line and the second data line being arranged at two sides of the first power line, respectively; and a light transmission hole, an orthographic projection of the light transmission hole on the base substrate being not overlapped with an orthographic projection of the first electrode on the base substrate; the light transmission hole is located in a region enclosed by the first initialization signal line, the light-emitting control signal line, the first power line, and the second data line.

Provided are a display panel and a display device. The display panel includes a pixel driver circuit. The pixel driver circuit includes a light-emitting module, a drive transistor and at least one light-emitting control transistor. The drive transistor, the light-emitting control transistor and the light-emitting module are connected in series between a first power supply signal terminal and a second power supply signal terminal, and at least one of the drive transistor or the light-emitting control transistor is a first double-gate transistor. The first double-gate transistor includes a first gate, a second gate and a first source, and the second gate is electrically connected to the first source.

A pixel circuit including an organic light emitting diode, a first transistor configured to drive the organic light emitting diode, a second transistor electrically connected between a gate node of the first transistor and a data line, a third transistor electrically connected between a source node of the first transistor and an initialization voltage line and a storage capacitor electrically connected between the gate node and the source node of the first transistor. In a data writing period in which the storage capacitor is charged with electric charges, a turn-off time of the third transistor lags compared to a turn-off time of the second transistor.

A pixel circuit including an organic light emitting diode, a first transistor configured to drive the organic light emitting diode, a second transistor electrically connected between a gate node of the first transistor and a data line, a third transistor electrically connected between a source node of the first transistor and an initialization voltage line and a storage capacitor electrically connected between the gate node and the source node of the first transistor. In a data writing period in which the storage capacitor is charged with electric charges, a turn-off time of the third transistor lags compared to a turn-off time of the second transistor.