A pixel driving circuit and a display apparatus. The pixel driving circuit includes a pulse amplitude modulation circuit and a pulse width modulation circuit electrically connected to each other. The pulse amplitude modulation circuit is electrically connected to a light-emitting element to provide a drive current thereto and is configured to control an amplitude of the drive current. The pulse width modulation circuit is configured to control a pulse width of the drive current. The pulse amplitude modulation circuit includes a light-emitting branch connected to the light-emitting element, which includes a first driving transistor and at least one switching transistor. The at least one transistor is a double-gate double-channel transistor. The introduction of the double-gate double-channel transistor into the light-emitting branch can reduce the current transmission time, lower the power consumption of the pixel driving circuit, and enhance the capability of the pixel driving circuit to output the drive current.

A display device includes a power supply, a display, a communication interface including circuitry, and at least one processor. The display device obtains humidity information of ambient air from a sensor, or receives the humidity information from an external device through the communication interface while the display device is in a standby mode, based on identifying that a humidity of the ambient air is greater than or equal to a threshold value based on the obtained humidity information, switches the display device from the standby mode to a dehumidification mode, and based on the display device being switched to the dehumidification mode, controls the power supply to supply power to the display, and controls the display to sequentially display each of a plurality of predetermined images.

A display device includes a first substrate including a plurality of light-emitting elements arranged two-dimensionally, and a second substrate stacked on the first substrate. At least the second substrate is transparent. The second substrate includes a repair light-emitting element arranged on the second substrate at a position thereon that corresponds to a defective light-emitting element on the first substrate.

In an LED display device according to an embodiment of the present disclosure, the LED display device comprises a second pixel driving circuit on a substrate, an LED element attached to a region not overlapping the second pixel driving circuit, including a first LED element, a second LED element and a growth substrate, and providing a double light-emitting spectrum, an element fixing layer surrounding the LED element, a first pixel driving circuit on the element fixing layer, and an element protecting layer on the first pixel driving circuit. In addition, the first LED element is controlled by the first pixel driving circuit, and the second LED element is controlled by the second pixel driving circuit. Therefore, the LED display device provides a dual emission spectrum, can realized high luminance and high definition, and can prevent a pixel defect.

In an LED display device according to an embodiment of the present disclosure, the LED display device comprises a second pixel driving circuit on a substrate, an LED element attached to a region not overlapping the second pixel driving circuit, including a first LED element, a second LED element and a growth substrate, and providing a double light-emitting spectrum, an element fixing layer surrounding the LED element, a first pixel driving circuit on the element fixing layer, and an element protecting layer on the first pixel driving circuit. In addition, the first LED element is controlled by the first pixel driving circuit, and the second LED element is controlled by the second pixel driving circuit. Therefore, the LED display device provides a dual emission spectrum, can realized high luminance and high definition, and can prevent a pixel defect.

Disclosed is a display substrate including a display region which includes a light-transmitting display region; the display substrate includes multiple light emitting elements and multiple pixel circuits, the multiple light emitting elements include multiple first type light emitting elements located in the light-transmitting display region, the multiple pixel circuits include multiple first type pixel circuits located in the light-transmitting display region, at least one first type pixel circuit among the multiple first type pixel circuits is electrically connected with at least two first type light emitting elements emitting light of a same color, and the first type pixel circuit is configured to drive the at least two first type light emitting elements to emit light; an orthographic projection of at least one first type pixel circuit on a base substrate is overlapped with an orthographic projection of at least one first type light emitting element on the base substrate.

Disclosed is a display substrate including a display region which includes a light-transmitting display region; the display substrate includes multiple light emitting elements and multiple pixel circuits, the multiple light emitting elements include multiple first type light emitting elements located in the light-transmitting display region, the multiple pixel circuits include multiple first type pixel circuits located in the light-transmitting display region, at least one first type pixel circuit among the multiple first type pixel circuits is electrically connected with at least two first type light emitting elements emitting light of a same color, and the first type pixel circuit is configured to drive the at least two first type light emitting elements to emit light; an orthographic projection of at least one first type pixel circuit on a base substrate is overlapped with an orthographic projection of at least one first type light emitting element on the base substrate.

The present disclosure provides a display panel and a display module, where the display panel includes a display area and a virtual terminal area; a plurality of sub-pixels of the display panel are located within the display area, and each of the sub-pixels includes at least first transistor; a light-sensing sensor is located within the virtual terminal area, and a portion of the film layer of the light-sensing sensor is disposed at the same layer as a portion of the film layer of the first transistor, so as to solve the technical problem that the existing externally-mounted light-sensing sensor is unfavorable to improvement of the screen-to-body ratios of the displays.

The present disclosure provides a display panel and a display module, where the display panel includes a display area and a virtual terminal area; a plurality of sub-pixels of the display panel are located within the display area, and each of the sub-pixels includes at least first transistor; a light-sensing sensor is located within the virtual terminal area, and a portion of the film layer of the light-sensing sensor is disposed at the same layer as a portion of the film layer of the first transistor, so as to solve the technical problem that the existing externally-mounted light-sensing sensor is unfavorable to improvement of the screen-to-body ratios of the displays.

Provided are a display panel and a display device. The display panel includes an array substrate. The array substrate includes a substrate, and a first-type transistor and a second-type transistor. The first-type transistor includes a first active layer, the second-type transistor includes a second active layer, and the second active layer is located on a side of the first active layer facing away from the substrate. Each of the first active layer and the second active layer is an oxide semiconductor active layer. By means of the technical method provided in the embodiments of the present disclosure, positions of the first active layer and the second active layer are adjusted, and further a position relationship between the first-type transistor and the second-type transistor in the array substrate is adjusted.