US 11,678,510 B2
Display panel, manufacturing method thereof, and display apparatus
Kai Sui, Beijing (CN); Zhongyuan Sun, Beijing (CN); Weijie Wang, Beijing (CN); Jinxiang Xue, Beijing (CN); Xiang Zhou, Beijing (CN); Wenqi Liu, Beijing (CN); Jingkai Ni, Beijing (CN); Chao Dong, Beijing (CN); and Xiaofen Wang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/494,417
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Nov. 1, 2018, PCT No. PCT/CN2018/113452
§ 371(c)(1), (2) Date Sep. 16, 2019,
PCT Pub. No. WO2020/087449, PCT Pub. Date May 7, 2020.
Prior Publication US 2021/0359267 A1, Nov. 18, 2021
Int. Cl. H01L 51/52 (2006.01); H01L 51/56 (2006.01); H10K 50/844 (2023.01); H10K 71/00 (2023.01)
CPC H01L 51/5256 (2013.01) [H01L 51/56 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A display panel comprising,
a display substrate;
a plurality of light emitting units on the display substrate; and
a first organic layer covering the plurality of light emitting units;
wherein a surface of the first organic layer opposite from the light emitting units comprises a plurality of raised portions and a plurality of recessed portions, and the first organic layer is directly in contact with the plurality of light emitting units;
the display panel further includes a first inorganic layer, a second organic layer, a second inorganic layer, and a third organic layer;
the first organic layer, the first inorganic layer, the second organic layer, the second inorganic layer, and the third organic layer are sequentially arranged in a direction away from the display substrate;
the first inorganic layer, the second organic layer, and the second inorganic layer conform to a surface profile formed by the plurality of raised portions and the plurality of recessed portions, and the third organic layer has a flat top surface at a side of the third organic layer opposite from the display substrate;
a Young's modulus of the first organic layer is not larger than a Young's modulus of the second organic layer;
the display panel further includes a dam structure, and the plurality of light emitting units is surrounded by the dam structure;
there is an edge area between an edge of the first organic layer and a front edge of the dam structure, and the first inorganic layer and the second inorganic layer are in contact with each other in the edge area; and
the first organic layer and the second organic layer form bank angles less than 90 degree to transit to the edge area.