US 12,010,865 B2
OLED display panel with organic functional layer, manufacturing method thereof, and OLED display device
Rui Lu, Hubei (CN); and Cunjun Xia, Hubei (CN)
Assigned to Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Wuhan (CN)
Appl. No. 17/254,340
Filed by Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd., Hubei (CN)
PCT Filed Jun. 19, 2020, PCT No. PCT/CN2020/097027
§ 371(c)(1), (2) Date Dec. 21, 2020,
PCT Pub. No. WO2021/248545, PCT Pub. Date Dec. 16, 2021.
Claims priority of application No. 202010528914.0 (CN), filed on Jun. 11, 2020.
Prior Publication US 2022/0190283 A1, Jun. 16, 2022
Int. Cl. H10K 50/844 (2023.01); H10K 59/12 (2023.01); H10K 71/00 (2023.01)
CPC H10K 50/844 (2023.02) [H10K 59/12 (2023.02); H10K 71/00 (2023.02); H10K 59/1201 (2023.02)] 18 Claims
OG exemplary drawing
 
1. An organic light-emitting diode (OLED) display panel, comprising:
a substrate;
a drive circuit layer disposed on the substrate;
a light-emitting functional layer disposed on the drive circuit layer; and
an encapsulation layer comprising a first inorganic layer, a first organic layer and a second inorganic layer sequentially disposed on the light-emitting functional layer;
wherein the first organic layer is disposed only in a display area of the OLED display panel;
wherein in a non-display area of the OLED display panel, an organic functional layer is disposed under the encapsulation layer, a minimum distance between boundaries of the organic functional layer and the encapsulation layer is greater than a coating precision accuracy of the encapsulation layer, and the organic functional layer is configured to undergo visible changes when in contact with water and oxygen
wherein the first organic layer in the display area is separated from the organic functional layer in the non-display area by the first inorganic layer and the second inorganic layer; and
wherein the organic functional layer comprises a first organic functional layer and a first reflective layer, and the first organic functional layer is disposed between the first reflective layer and the encapsulation layer.