公开(公告)号：US20240021770A1

公开(公告)日：2024-01-18

申请号：US18336200

申请日：2023-06-16

Applicant: Samsung Display Co., LTD.

Inventor： Hwang Sup SHIN ,  Suk Hoon KU ,  Eung Taek KIM ,  Hee Yeon KIM ,  Na Lae LEE ,  Joo Hyeon JO ,  Jung-Mi CHOI ,  HONGJUN CHOI

IPC: H01L33/62 ,  H01L25/16 ,  H01L33/02 ,  H01L33/00

CPC classification number: H01L33/62 ,  H01L25/167 ,  H01L33/025 ,  H01L33/0095

Abstract: An embodiment of the invention provides a display device including: a substrate; a first transistor comprising a first semiconductor layer and a second transistor comprising a second semiconductor layer, the first and second semiconductor layers positioned on the substrate; a light emitting diode connected to the first transistor, wherein: the first transistor is a driving transistor; the second transistor is a switching transistor; a first concentration of fluorine included in the first semiconductor layer is higher than a second concentration of fluorine in the second semiconductor layer; and a first difference between the first and second concentrations substantially at or near a first interface of the first and second semiconductor layers is larger than a second difference between the first and second concentrations at a second interface of the first and second semiconductor layers, the second interface further from the substrate than the first interface.