US 12,274,121 B2
Display panel comprising dam structure including plurality of dam layers in non-display area and mobile terminal
Chen Chen, Wuhan (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology CO., Ltd., Hubei (CN)
Appl. No. 17/621,180
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
PCT Filed Dec. 10, 2021, PCT No. PCT/CN2021/136970
§ 371(c)(1), (2) Date Dec. 20, 2021,
PCT Pub. No. WO2023/087436, PCT Pub. Date May 25, 2023.
Claims priority of application No. 202111399725.9 (CN), filed on Nov. 19, 2021.
Prior Publication US 2023/0165038 A1, May 25, 2023
Int. Cl. H04M 1/02 (2006.01); H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 59/122 (2023.01)
CPC H10K 50/844 (2023.02) [H04M 1/0266 (2013.01); H10K 59/122 (2023.02)] 9 Claims
OG exemplary drawing
 
1. A display panel comprising a display area and a non-display area surrounding the display area, wherein the display panel comprises:
an array substrate;
a dam structure, wherein the dam structure is on the array substrate and in the non-display area, the dam structure comprises a plurality of dam layers which are stacked layer by layer, and the plurality of dam layers comprise a first dam layer on the array substrate and a second dam layer on the first dam layer; wherein a width of the second dam layer is less than or equal to a width of the first dam layer in a cross-section of the display panel, a first groove is provided in the first dam layer, and the second dam layer is in the first groove of the first dam layer;
an organic layer group on the array substrate and in the display area, and an absolute value of a difference between a thickness of the organic layer group and a thickness of the dam structure is less than or equal to a first predetermined threshold value; and
a light-emitting layer on a side of the organic layer group away from the array substrate and in the display area.