BOE Technology Patente

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A display substrate and a display apparatus. The display substrate comprises a base substrate, sub-pixels located on the base substrate, and a limiting structure. The sub-pixel comprises a light-emitting functional layer, which comprises a plurality of film layers; and the limiting structure is located between two adjacent sub-pixels of different colors and is configured to partition at least one layer of the light-emitting functional layer. The sub-pixels comprise sub-pixels of a first color, and the limiting structure adjacent to the sub-pixels of the first color in the limiting structure is a first limiting structure; a light-emitting area of the sub-pixels of the first color comprises a first edge extending in a first direction; the first limiting structure comprises two limiting end points, wherein in the first direction, at least one limiting end point protrudes relative to an edge end point of the first edge, or the first limiting structure has a curved shape; and the total length of the first limiting structure is greater than the size of the light-emitting area of the sub-pixels of the first color in at least one direction, so that the low-grayscale crosstalk problem caused by leakage current between the sub-pixels of the first color and sub-pixels of other colors is mitigated.

Embodiments of the present application provide a handwritten content processing method and a related device, capable of simplifying the processing of an unexpected, temporary, or additional handwriting request while recording under one handwriting requirement, thereby improving the convenience of recording. The handwritten content processing method may comprise: displaying a target handwriting interface; on the basis of a first handwriting input received by the target handwriting interface, displaying, in the target handwriting interface, first handwritten content corresponding to the first handwriting input; on the basis of a first target operation, determining second handwritten content displayed in the target handwriting interface; clearing the second handwritten content on the target handwriting interface, and retaining at least a part of the first handwritten content; and storing the second handwritten content to a target file.

A display substrate, a display panel, and a display device. The display substrate comprises sub-pixels, a pixel defining layer, a first defining structure, and a support structure; the pixel defining layer comprises a plurality of openings and a pixel defining portion; the plurality of openings comprise a plurality of first openings and a plurality of second openings; the first defining structure comprises a first portion overlapping with the pixel defining portion and a second portion exposed out of the second openings; the second portion of the first defining structure is configured to isolate at least one layer in a light-emitting function layer; the minimum distance between the orthographic projection of the support structure on a base substrate and the orthographic projection of the first defining structure on the base substrate is a first distance; the minimum distance to the orthographic projection of the second openings on the base substrate is a second distance; and the first distance and the second distance are both greater than 0 micrometer and less than 10 micrometers. Therefore, the support structure has a good shape and provides reliable support force while the light-emitting function layer is isolated to reduce crosstalk.

Embodiments of the present disclosure provide a haptic feedback assembly and a haptic feedback device. The haptic feedback assembly includes: a flexible circuit board, where the flexible circuit board includes a flexible substrate, a first metal layer arranged on a side of a first surface of the flexible substrate, and a second metal layer arranged on a side of a second surface of the flexible substrate, and the first surface and the second surface are oppositely arranged in a thickness direction of the flexible substrate; and a plurality of piezoelectric actuators, arranged on a side of the first metal layer away from the flexible substrate, where the piezoelectric actuators are electrically connected with the first metal layer, the first metal layer is electrically connected with the second metal layer through a through hole penetrating the flexible substrate, the second metal layer is electrically connected with an external driving circuit.

Provided are a display substrate, a display panel and a display device. The display substrate includes a base substrate, a pixel definition layer, a light-emitting functional layer and a second electrode layer arranged sequentially. The light-emitting functional layer includes a charge generation layer. The pixel definition layer defines pixel openings. The pixel definition layer includes a pixel definition portion having an undercut structure on a side facing the pixel opening. The undercut structure includes first, second and third portions, the second portion recesses a first distance relative to the third portion in a direction away from the pixel opening, and the first portion protrudes a second distance relative to the third portion in a direction toward the pixel opening. A virtual connecting line between edges of the first portion and the third portion facing the pixel opening forms a first slope angle with a first direction. Above the undercut structure, the second electrode layer includes a second electrode second sub-portion whose side edge facing the pixel opening has a second slope angle, and the first slope angle is less than the second slope angle.

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The present application belongs to the technical field of displays. Disclosed are a chip structure and a manufacturing method therefor, and a display substrate. The chip structure comprises: a first substrate, a light-emitting unit, a color conversion unit and a surrounding dam layer. The surrounding dam layer can be arranged around the light-emitting unit, and the maximum distance between the surface of the surrounding dam layer facing away from the color conversion unit and the first substrate is greater than or equal to the maximum distance between the surface of a first semiconductor layer in the light-emitting unit facing away from the first substrate and the first substrate. Therefore, after a light waveguide phenomenon occurs inside the first semiconductor layer, light transmitted transversely within the first semiconductor layer can be blocked by the surrounding dam layer after being emitted from any position on the edge, such that the probability of light leakage in the chip structure can be effectively reduced, resulting in a better display effect of the display substrate, which is integrated with the chip structure.

The present disclosure belongs to the technical field of display, and provides a display panel and a display apparatus. The display panel comprises a base substrate, a driving layer and a pixel layer, which are stacked in sequence. The driving layer comprises a first metal layer, a semiconductor layer, a gate insulation layer, a second metal layer and a planarization layer, which are stacked in sequence on the base substrate. The driving layer comprises a pixel driving circuit, which is arranged in an array and is used for driving the pixel layer. The pixel driving circuit comprises a first transistor, a second transistor, a third transistor and a storage capacitor, each transistor comprising a gate electrode, a first electrode and a second electrode. The display panel comprises a scanning signal line, and the gate electrode of the third transistor, and the first electrode and second electrode of the third transistor, are all located on the same side of the scanning signal line. In the described display panel, disposing thin film transistors on the same side of a scanning signal line helps to increase an aperture ratio, while still satisfying layout space and processing requirements.

A display panel (PNL) and a display apparatus, which relate to the technical field of display. The display panel (PNL) comprises a base substrate (SBT), a driving layer (DRL) and a pixel layer (PIXL), which are sequentially stacked, wherein the driving layer (DRL) has transistors (TFTs) for driving sub-pixels (PIX); at least one transistor (TFT) comprises a channel region (CR) located on a semiconductor layer (SCL), and comprises two conductive structures (CSs) located on two sides of the channel region (CR); at least one conductive structure (CS) comprises an electrical contact structure (ECS) located on the semiconductor layer (SCL), an overlapping insulation structure (GIS) located on a gate insulation layer (GI), and an overlapping structure (OS) located on a second metal layer (GT); the overlapping insulation structure (GIS) has an overlapping via hole (GIH), and the overlapping structure (OS) is electrically connected to the electrical contact structure (ECS) by means of the overlapping via hole (GIH); and the length direction (ED) of at least one overlapping via hole (GIH) of the at least one transistor (TFT) is not parallel to the length direction (LE) of the channel region (CR) of the transistor (TFT). The display panel (PNL) can improve the space utilization rate to the greatest extent, improve the aperture ratio of a display device, and prolong the service life of an OLED device.

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The present application relates to the technical field of display. Disclosed are a pixel driving circuit, a display panel and a light-emission control method. The pixel driving circuit comprises: a turn-on control sub-circuit, which turns on a gate of a driving transistor and a first node in response to a signal from a first light-emission control signal end; a data writing sub-circuit, which writes a driving signal into the first node in response to a signal from a scanning signal end; a coupling sub-circuit, which stores the driving signal and a threshold value voltage of the driving transistor; a first light-emission control sub-circuit, which provides a signal from a first power source end to a first electrode of the driving transistor in response to a signal from a second light-emission control signal end; and a second light-emission control sub-circuit, which turns on a second electrode of the driving transistor and a light-emission device in response to a signal from the first light-emission control signal end. By means of the provision of a turn-on control sub-circuit, the effect of the capacitance value of a light-emission device on a pixel circuit is effectively blocked, thereby making the display brightness of the pixel circuit in a low-grayscale picture more uniform.

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A display panel and a display device, relating to the technical field of display. The display panel comprises a driving backplane (BP) and a light-emitting device (LD); the driving backplane (BP) comprises a plurality of pixel circuits (PC) distributed in an array along a row direction and a column direction; the pixel circuits (PC) each comprise a plurality of transistors, and the transistors in any pixel circuit (PC) include a driving transistor (T5); the driving transistor (T5) and at least some of the other transistors in any pixel circuit (PC) are metal oxide transistors; the driving backplane (BP) comprises a substrate (SU), and a semiconductor layer (SE) and at least one source/drain layer which are distributed in a direction distant from the substrate; channel portions of at least some of the transistors are located in the semiconductor layer (SE); the source/drain layer overlaps with channel portions of at least some of the metal oxide transistors; the light-emitting device (LD) is disposed on one side of the driving backplane (BP), and comprises a first electrode (ANO), a light-emitting layer (EL), and a second electrode (CAT) which are distributed in a direction distant from the driving backplane (BP); and a first electrode of the driving transistor (T5) is connected to the first electrode (ANO) of the light-emitting device (LD).

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The present disclosure relates to a display panel and a display device, and relates to the field of display technology. The display panel includes a driving backplane and a light-emitting device; the driving backplane has a pixel circuit located in a display area and a peripheral circuit located in a peripheral area, and the peripheral circuit includes a plurality of cascaded shift registers; a shift register is configured to scan at least one row of pixel circuits; the pixel circuit and the shift register both include a plurality of transistors; the transistors of the pixel circuit include a driving transistor, and the driving transistor and at least some of the other transistors are metal oxide transistors; the transistors in the shift register are polysilicon transistors; the light-emitting device is arranged on one side of the driving backplane; the light-emitting device includes a first electrode, a light-emitting layer, and a second electrode stacked in sequence in a direction away from the driving backplane; the first electrode of the driving transistor is connected to the first electrode of the light-emitting device, the second electrode is connected to the first power line transmitting the first power signal, and the second electrode of the light-emitting device is configured to receive the second power signal.