US 12,232,379 B2
Display panel and display device
Kun Zhou, Hubei (CN); Ping Zhong, Hubei (CN); and Shaojing Wu, Hubei (CN)
Assigned to WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Hubei (CN)
Appl. No. 17/793,401
Filed by WUHAN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD., Hubei (CN)
PCT Filed Jun. 29, 2022, PCT No. PCT/CN2022/102217
§ 371(c)(1), (2) Date Jul. 17, 2022,
PCT Pub. No. WO2023/231114, PCT Pub. Date Dec. 7, 2023.
Claims priority of application No. 202210613480.3 (CN), filed on May 31, 2022.
Prior Publication US 2024/0008323 A1, Jan. 4, 2024
Int. Cl. H10K 59/122 (2023.01); G06F 3/041 (2006.01); H10K 59/131 (2023.01); H10K 59/40 (2023.01)
CPC H10K 59/131 (2023.02) [G06F 3/0412 (2013.01); H10K 59/122 (2023.02); H10K 59/40 (2023.02)] 16 Claims
OG exemplary drawing
 
1. A display panel, wherein the display panel comprises a first dam area and a second dam area spaced apart from the first dam area in a first direction, and the display panel comprises:
a first planarization layer in the first dam area;
a second planarization layer covering the first planarization layer and continuously extending from the first dam area to the second dam area;
a first pixel definition layer located on the second planarization layer and in the first dam area;
a second pixel definition layer located on the second planarization layer and in the second dam area;
a first support column covering the first pixel definition layer and located in the first dam area;
a second support column covering the second pixel definition layer and located in the second dam area;
a first dam structure located in the first dam area, comprising the first planarization layer, the second planarization layer, the first pixel definition layer and the first support column; and
a second dam structure located in the second dam area, comprising the second planarization layer, the second pixel defining layer and the second support column;
wherein the second pixel definition layer has a platform not covered by the second support column, the second support column is located between the platform and the first support column;
and a width of the platform in the first direction ranges from 15 micrometers to 18 micrometers.