Abstract: A pixel driving circuit, a display panel and a display device are provided. The pixel driving circuit includes a light emitting element and an amplitude modulation device. The amplitude modulation device includes a first driving transistor, a first switch transistor and a second switch transistor. The first driving transistor is configured to provide a driving current for the light emitting element, the first switch transistor and the second switch transistor are configured to selectively control the light emitting element to enter a light emitting stage, and a width-to-length ratio of a channel of the first switch transistor is different from a width-to-length ratio of a channel of the second switch transistor.

Abstract: A display panel and a display device are provided. The display panel includes a substrate, multiple light emitting elements, and multiple prism structures. The prism structure includes multiple sub-structures. An orthographic projection of the sub-structure on the substrate at least partially surrounds that of the light emitting element on the substrate. The sub-structure has a first inclined surface toward the light emitting element, and the sub-structures include a first sub-structure and a second sub-structure. In a first direction, the first sub-structure and the second sub-structure have different distances from the light emitting element, and have different included angles between first inclined surfaces of the sub-structures and a direction perpendicular to a plane in which the substrate is located. The first direction is parallel to a plane in which the substrate is located.

Abstract: A splicing screen and a splicing display apparatus are provided. The splicing screen includes display screens. One of the display screens includes two opposite first edges and two opposite second edges. The two opposite first edges are not parallel to each other. The two opposite second edges have different lengths. The splicing screen at least includes two adjacent display screens. An angle is formed between the two display screens spliced at a corresponding first edge of the two opposite first edges.

Abstract: A display panel including an array layer and first light-emitting elements located in a first display region. The first light-emitting elements are electrically connected to the array layer. The display panel further includes a light-shielding layer and a protective layer, where one of the light-shielding layers and the protective layer contains a hydrophilic material and the other contains a hydrophobic material. The light-shielding layer includes a first light-shielding portion, which is located on a surface of the array layer facing the first light-emitting elements and between adjacent first light-emitting elements. The first light-emitting element includes a first surface away from the array layer. The protective layer includes first protective portions each located in at least a partial region of the first surface.

Abstract: Provided are a microdevice substrate, a display panel, a preparation method, and a display apparatus. The microdevice substrate includes a base substrate, multiple microdevices disposed on one side of the base substrate, and support structures. The support structures are connected to the multiple microdevices. A support structure includes a first support portion and a second support portion. The first support portion is fixedly connected to the base substrate. The second support portion is connected between a microdevice and the first support portion. The microdevice and the second support portion are suspended on the same side of the base substrate. A guide structure is disposed on the second support portion. The guide structure affects a broken position of the second support portion after being stressed.

Abstract: A display apparatus includes a display panel and sweep signal lines. In an embodiment, the display panel includes light-emitting elements and pixel circuits. In an embodiment, at least one of the pixel circuits includes a pulse width modulation (PWM) module configured to control light emission duration of the light-emitting element. In an embodiment, the sweep signal lines are configured to provide a sweep signal to the PWM module. In an embodiment, the sweep signal lines include first sweep signal lines extending in a first direction, and at least two of the first sweep signal lines are connected through a first connection line extending in a second direction that intersects the first direction.

Abstract: A display panel and a display device are provided. The display panel includes a plurality of sub-pixel units. The sub-pixel units include a first sub-pixel unit and a second sub-pixel unit. The first sub-pixel unit is provided with a main electrode and n spare electrodes, and the second sub-pixel unit is provided with a main electrode and m spare electrodes, where n<m, n and m are integers.

Abstract: A display panel and a display device are provided. The display panel includes a display area. The display area includes multiple pixel areas and multiple light transmissive areas arranged in an array. The display panel further includes a dimming part and at least one photosensitive component. Along a thickness direction of the display panel, at least a part of the dimming part at least partially overlaps with the light transmissive areas. The photosensitive component is electrically connected to the dimming part. With the display panel and a display device according to the present disclosure, a display effect of the display panel can be effectively improved.

Abstract: Provided are a display panel, a display device, and a preparation method of a display panel. The display panel includes a substrate, an array layer, light-emitting devices, and a first film layer. The array layer is disposed on the substrate. The light-emitting devices are arranged on a side of the array layer facing away from the substrate. The first film layer is disposed on the side of the array layer facing away from the substrate, the first film layer is provided with at least one groove, and at least part of the at least one groove is located between adjacent light-emitting devices.

Abstract: Provided are a display panel, a display device and a preparation method of a display panel. The display panel includes an array substrate and a light-emitting unit. The array substrate includes a base substrate and an encapsulation layer located on a side of the base substrate, and a side surface of the encapsulation layer facing away from the base substrate is provided with an accommodation groove. The light-emitting unit is located in the accommodation groove, the accommodation groove is filled with a light-absorbing material, a protective film is formed on both a side surface of the encapsulation layer facing away from the base substrate and a side surface of the light-emitting unit facing away from the base substrate, and an etching rate of the protective film is less than an etching rate of the light-absorbing material under a same etching condition.

Abstract: A display panel and a display device are provided. The pixel circuit includes a drive device, a first light-emitting control device and a second light-emitting control device; the first light-emitting control device and the second light-emitting control device are configured to jointly control a light-emitting duration of the light-emitting element; the first light-emitting control device is electrically connected to the first light-emitting control signal line, the second light-emitting control device is connected to the second light-emitting control signal line.

Abstract: A mass transfer system and a mass transfer method are provided. The mass transfer system is used for transferring micro light-emitting diodes (microLEDs) to an array substrate. The mass transfer system includes a transfer device and a calibration device. The transfer device is configured to absorb multiple microLEDs and transfer the multiple microLEDs to the calibration device. The calibration device includes multiple calibration points. One of the multiple calibration points is configured to absorb one of the multiple microLEDs and perform position calibration on the one of the multiple microLEDs. The calibration device is also configured to transfer the multiple microLEDs to the array substrate through electrical control.

Abstract: Provided array substrate includes multiple transparent regions and further includes a substrate and a base layer. The base layer is disposed on a side of the substrate and includes a driving layer and a light-shielding layer disposed on the side of the driving layer facing away from the substrate, where the region in which the light-shielding layer is disposed does not overlap a transparent region along the thickness direction of the array substrate.

Abstract: A display panel, a display device and a method for manufacturing a display device are provided. The display panel includes: a display area and a non-display area, at least a part of the non-display area is located on a side of the display area in a first direction; and the non-display area includes at least one first metal portion and a first marker, and the first marker extends through the first metal portion. With the display panel, display device and method, whether an actual grinding line reaches the target grinding line can be determined in real time.

Abstract: A transfer substrate, a method for transferring a microdevice and a display panel are provided. The transfer substrate includes a substrate body, a first functional layer and a second functional layer. Protrusions and grooves are alternately formed on one side of the substrate body. The first functional layer is arranged on the side of the substrate body where the protrusion is formed. The first functional layer at least partially overlaps the protrusion along a direction perpendicular to a plane in which the substrate body extends. The second functional layer at least partially overlaps the first functional layer along the direction perpendicular to the plane in which the substrate body extends. The second functional layer extends from the protrusion to at least a sidewall of the groove.

Abstract: A display panel, a method for driving a display panel, and a display apparatus are provided. The display panel includes first sub-pixels. At least one of the first sub-pixels includes a first pixel circuit and a first light-emitting element. The first pixel circuit includes a display controller and a detector that are electrically connected to a first electrode of the first light-emitting element, respectively. An operating process of the first pixel circuit includes a detection stage. In the detection stage, the detector is turned on to detect a voltage of the first electrode of the first light-emitting element.

Abstract: Provided are a display panel and a display device. The display panel includes a pixel circuit and a light-emitting element. The pixel circuit includes a data write module, a drive module and a first reset module. The data write module is configured to transmit a data signal in response to a scan signal of a first scan terminal. The drive module is configured to provide a drive current for the light-emitting element and includes a drive transistor. The drive transistor is configured to generate the drive current according to the data signal. The first reset module is connected between a first signal line and a gate of the drive transistor and configured to transmit a signal of the first signal line to the gate of the drive transistor. The data write module is connected between the first signal line and an input terminal of the drive transistor.

Abstract: A display panel and a display device are provided. The display panel includes: a pixel circuit, a light-emitting element and an initialization signal line. The initialization signal includes an enabling level and a non-enabling level, and the enabling level of the initialization signal is configured to initialize a target node of the pixel circuit. The initialization signal line extends in a first direction, and includes a first initialization signal line and a second initialization signal line. The pixel circuit includes a first pixel circuit connected to the first initialization signal line and a second pixel circuit connected to the second initialization signal. A screen refresh cycle of the display panel includes a first stage, the first initialization signal line transmits the enabling level, and the second initialization signal line transmits the non-enabling level, in the first stage.

Abstract: Provided are a display panel and a display device. The display panel includes a plurality of sub-pixels. The plurality of sub-pixels includes at least one first color sub-pixel, one of which includes M first wirings connected in parallel. The M first wirings include at least one first sub-wiring, and each first sub-wiring includes N light-emitting diodes (LEDs) connected in series, where M and N are positive integers, M?2, and N?2.

Abstract: A display panel, a manufacturing method therefor and a display device are provided. The display panel includes: a driving substrate; a light-shielding layer, located on a side of the driving substrate, where the light-shielding layer includes a first shielding structure and a second shielding structure, the first shielding structure includes a first opening, the second shielding structure is located in the first opening, and a thickness of the second shielding structure is less than that of the first shielding structure in a first direction, where the first direction is vertical to a plane where the driving substrate is located and points to a light-emergent surface of the display panel; and multiple pixel units, where the pixel unit includes multiple light-emitting elements located in the first opening, and the driving substrate provides driving signals for the light-emitting elements.