Chengdu BOE Optoelectronics 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.

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.

A display substrate and a manufacturing method therefor, and a display device. In the display substrate, a pixel defining layer comprises a first pixel aperture and a first isolation aperture, the first pixel aperture is located on the side of a first electrode of a first light-emitting element distant from a base substrate and exposes at least part of the first electrode, and the first isolation aperture is located on the periphery of the first pixel aperture; the pixel defining layer comprises a first pixel defining portion located between the first pixel aperture and the first isolation aperture and a second pixel defining portion located on the side of the first isolation aperture distant from the first pixel aperture; and the first pixel defining portion comprises a first main body portion and a first compensation portion which are connected, the first compensation portion is located on the side of the first main body portion close to the first isolation aperture, and the first compensation portion is provided with a first protruding contour protruding from the top of the first main body portion in a direction away from the base substrate, so that the maximum height of the first compensation portion is greater than the maximum height of the first main body portion. Therefore, the display substrate can avoid dark spots and color casts.

A display module and a display apparatus. The display module comprises a display substrate (10) and a first structure layer (11); on the plane parallel to the display substrate (10), the display substrate (10) comprises a display area (AA) and a frame area (BB), the frame area (BB) is located around the display area (AA), the frame area (BB) is provided with at least one type of first gate driving circuits (GOA1), there are a plurality of first gate driving circuits (GOA1) of the same type, and the first gate driving circuits (GOA1) comprise a plurality of transistors; in a direction (Z) perpendicular to the plane where the display substrate is located, the first structure layer (11) is provided on a backlight side (S2) of the display substrate (10), the orthographic projection of the first structure layer (11) on the display substrate (10) at least covers part of the display area (AA), and at least some transistors in the plurality of first gate driving circuits (GOA1) of the same type have the same range covered by the orthographic projection of the first structure layer (11) on the display substrate (10).

A display substrate and a display device. The display substrate comprises sub-pixels, pixel defining patterns, and defining structures. The sub-pixels each comprise a light-emitting functional layer; the pixel defining patterns each comprise openings and pixel defining portions surrounding the openings, and at least part of each light-emitting functional layer is isolated in at least one opening; and the defining structures are located between the pixel defining portions and a base substrate. The defining structures each are located between two corresponding adjacent sub-pixels of different colors; the defining structures each comprise a first portion covered by the corresponding pixel defining portion and a second portion exposed out of the corresponding opening; the second portions of the defining structures are configured to isolate the light-emitting functional layers; and the defining structures are made of an organic material, and the orthographic projection of the edge of the side surface of each second portion distant from one side of the base substrate on the base substrate falls within the orthographic projection of the corresponding opening on the base substrate, such that the corresponding light-emitting functional layer is isolated to reduce crosstalk, thereby minimizing the effect of the defining structures on the process and productivity while guaranteeing the electrode flatness and normal light-emitting effects of the sub-pixels.

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