Patent ID: 11937461
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: nan (nan)
Classification: CPC H | IPC H

Claim 13:
14. A method of manufacturing an array substrate, comprising:
forming a plurality of first electrodes on a base substrate, wherein the plurality of first electrodes are spaced apart from each other;
forming a plurality of first pixel defining portions and a plurality of second pixel defining portions on the base substrate, so that the plurality of first pixel defining portions and the plurality of second pixel defining portions jointly define a plurality of pixel openings; and
forming a light emitting functional layer in each of the pixel openings by using an inkjet printing process,
wherein orthographic projections of the plurality of pixel openings on the base substrate are respectively located in orthographic projections of the plurality of first electrodes on the base substrate, the plurality of pixel openings comprise at least a first pixel opening and a second pixel opening, the light emitting functional layer comprises at least a first light emitting portion and a second light emitting portion that emit different colors of light, at least a part of the first light emitting portion is located in the first pixel opening, and at least a part of the second light emitting portion is located in the second pixel opening;
wherein at least one of the plurality of first pixel defining portions is located between a first pixel opening and a second pixel opening that are adjacent in a first direction, and at least one of the plurality of second pixel defining portions is located between two first pixel openings that are adjacent in the first direction or is located between two second pixel openings that are adjacent in the first direction;
wherein an orthographic projection of a combination of two adjacent pixel openings separated by the second pixel defining portion on the base substrate has a first size in the first direction and a second size in a second direction different from the first direction, and a ratio of the first size to the second size is within a range of 0.8 to 1.2;
wherein the base substrate has a first surface facing the plurality of first electrodes, the first pixel defining portion has a first height in a direction perpendicular to the first surface, the second pixel defining portion has a second height in the direction perpendicular to the first surface, and the first height is greater than the second height;
wherein the method further comprises: forming a plurality of third pixel defining portions on the base substrate, wherein at least one of the third pixel defining portions is located between two first pixel openings that are adjacent in a third direction or is located between two second pixel openings that are adjacent in the third direction, the third direction is different from the first direction and the second direction; and
wherein the third pixel defining portion has a third height in the direction perpendicular to the first surface, and the first height is greater than the third height.