Chengdu BOE Optoelectronics Technology Patente

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A display substrate, comprising a base, at least one first display unit located in each display island region, and a plurality of second display units located in a second display region and arranged in an array. The second display region is located on at least one side of the first display region. The first display region comprises a plurality of display island regions and a plurality of light-transmissive regions which are arranged in an array. The first display unit comprises N first light-emitting elements and M first pixel circuits, M and N being both integers greater than 1, and M being less than N. At least one first pixel circuit is connected to at least two first light-emitting elements. A second display unit comprises M second light-emitting elements and M second pixel circuits, the M second pixel circuits being connected on a one-to-one basis to the M second light-emitting elements. The arrangement mode of the N first light-emitting elements of the first display unit is different from the arrangement mode of the M second light-emitting elements of the second display unit.

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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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Provided are a display panel and a display apparatus. The display panel comprises: a display area, and a peripheral area surrounding the display area. The peripheral area comprises a wiring area, the wiring area being located at one side of the display area. The wiring area is provided with an input area and a dummy area, the dummy area and the input area being arranged in sequence along a direction away from the display area, the input area being provided with multiple input protrusions, and the dummy area being provided with multiple dummy protrusions. The display panel further comprises a substrate, and multiple signal lines located on the substrate. A first spacing area is provided between the multiple input protrusions and the multiple dummy protrusions, and at most one of the multiple signal lines passes through the first spacing area. Thus, in the binding process of an integrated circuit, cracks in an inorganic insulating layer can be reduced or avoided, and defects caused by cracks in the inorganic insulating layer can be avoided.

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A display substrate and a display device. The display substrate comprises a substrate base, and a conductive structure and a first inorganic layer which are located on the substrate base. The substrate base comprises a first area and a second area; the conductive structure is located in the first area and the second area; the first inorganic layer is located on the side of the conductive structure away from the substrate base and is located in the first area and the second area. In at least part of the first area, an insulating layer is provided between the first inorganic layer and the conductive structure, and in at least part of the second area, the first inorganic layer is in contact with the surface of the conductive structure. In the display substrate provided in the present disclosure, the first inorganic layer is provided in both the first area and the second area, and in the second area, the first inorganic layer is in direct contact with the surface of the conductive structure, thereby implementing protection of the conductive structure by the first inorganic layer and preventing defects caused by etching of the conductive structure due to exposure.

A display panel and a display device. In the display panel, a first isolation structure (601) is located between adjacent sub-pixels of a plurality of sub-pixels (SP), the first isolation structure (601) being configured to partition at least one of a plurality of film layers of a light-emitting functional layer (FL); the first isolation structure (601) comprises a first isolation portion (PT1) and a second isolation portion (PT2), the first isolation portion (PT1) being located in a first organic insulating layer (Y1), and the second isolation portion (PT2) being located in an inorganic insulating layer (Y0); the inorganic insulating layer has a plurality of through holes (H0) located in a peripheral area (R2); a second organic insulating layer (Y2) is in contact with the first organic insulating layer (Y1) via the plurality of through holes (H0). Therefore, the risk of easy stripping caused by the contact between the inorganic insulating layer and the organic insulating layers is avoided, and the contact reliability is improved, which facilitates the air removal of the organic insulating layer below the inorganic insulating layer, and improves the process reliability.

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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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