Patent ID: 11930681
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A display panel, comprising:
a base substrate, comprising a display region and a peripheral region located at a periphery of the display region;
a plurality of first color sub-pixels, located in the display region, the plurality of first color sub-pixels being arranged along a first direction to form a plurality of first color sub-pixel rows, the plurality of first color sub-pixel rows being arranged along a second direction, and adjacent first color sub-pixel rows in the plurality of first color sub-pixel rows are shifted with each other along the first direction;
a plurality of second color sub-pixels, located in the display region, and arranged in an array along the first direction and the second direction, and four second color sub-pixels surrounding one first color sub-pixel;
a pixel defining layer, located in the display region and the peripheral region, the pixel defining layer comprising a plurality of openings to define effective light emitting regions of a plurality of sub-pixels, the plurality of first color sub-pixels comprising a plurality of first effective light emitting regions, the plurality of second color sub-pixels comprising a plurality of second effective light emitting regions, and an area of one of the plurality of second effective light emitting regions being smaller than an area of one of the plurality of first effective light emitting regions,
wherein the plurality of first color sub-pixels comprise a plurality of first color light emitting layers located in corresponding openings and on the pixel defining layer surrounding the corresponding openings, the plurality of second color sub-pixels comprise a plurality of second color light emitting layers located in corresponding openings and on the pixel defining layer surrounding the corresponding openings, the plurality of first color light emitting layers included in the plurality of first color sub-pixels are spaced apart from each other, and the plurality of second color light emitting layers included in the plurality of second color sub-pixels are spaced apart from each other;
an area ratio between orthographic projections of the first color light emitting layer and the first effective light emitting region corresponding to a same first color sub-pixel on the base substrate is a first area ratio, an area ratio between orthographic projections of the second color light emitting layer and the second effective light emitting region corresponding to a same second color sub-pixel on the base substrate is a second area ratio, and the first area ratio is less than the second area ratio;
at least part of the plurality of second effective light emitting regions have a length direction and a width direction, the length direction is an extending direction of a connecting line between two points farthest from each other in one of the plurality of second effective light emitting regions, and the width direction is substantially perpendicular to the length direction of the one of the plurality of second effective light emitting regions; for one second effective light emitting region, along the length direction, a ratio of a maximum size of the second color light emitting layer corresponding to the second effective light emitting region to a maximum size of the second effective light emitting region is a first ratio, and along the width direction, a ratio of a maximum size of the second color light emitting layer corresponding to the second effective light emitting region to a maximum size of the second effective light emitting region is a second ratio, and the first ratio is less than the second ratio;
for one second effective light emitting region, along the length direction, a difference between the maximum size of the second color light emitting layer and the maximum size of the second effective light emitting region is a first difference, and along the width direction, a difference between the maximum size of the second color light emitting layer and the maximum size of the second effective light emitting region is a second difference, and the first difference is less than the second difference.