US 12,256,623 B2
OLED display panel and electronic device with improved encapsulation effect
Wendong Lian, Shenzhen (CN)
Appl. No. 17/620,698
Filed by SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Shenzhen (CN)
PCT Filed Dec. 16, 2021, PCT No. PCT/CN2021/138873
§ 371(c)(1), (2) Date Dec. 19, 2021,
PCT Pub. No. WO2023/097796, PCT Pub. Date Jun. 8, 2023.
Claims priority of application No. 202111465094.6 (CN), filed on Dec. 3, 2021.
Prior Publication US 2024/0049567 A1, Feb. 8, 2024
Int. Cl. H10K 59/80 (2023.01)
CPC H10K 59/873 (2023.02) 15 Claims
OG exemplary drawing
 
1. An organic light-emitting diode (OLED) display panel, comprising:
a display main body, wherein the display main body has a display area and a non-display area defined at a periphery of the display area, the display area comprises an effective display area and an ineffective display area, and the ineffective display area is defined between the effective display area and the non-display area; and
an encapsulation structure disposed at one side of the display main body, wherein the encapsulation structure extends from the display area to the non-display area, the encapsulation structure comprises a first organic layer, a first inorganic layer, and a second organic layer that are sequentially stacked, and the second organic layer covers a side surface of the first organic layer;
wherein the encapsulation structure further comprises a second inorganic layer and a third inorganic layer, the second inorganic layer is disposed at a side of the first organic layer close to the display main body, and the third inorganic layer is located on a side of the second organic layer away from the first inorganic layer;
wherein the OLED display panel further comprises a dam, the dam is located on a side of the first organic layer away from the display area, an orthographic projection of the second inorganic layer on a plane where the display main body is located is within an orthographic projection of the first organic layer on the plane where the display main body is located, the first organic layer covers a side surface of the second inorganic layer away from an end portion of the display area, and the first organic layer and the second inorganic layer are located within an area of the non-display area close to the ineffective display area; and
wherein each of the first inorganic layer, the second organic layer, and the third inorganic layer covers the dam and extends to a side of the dam away from the display area.