公开(公告)号：US12274093B2

公开(公告)日：2025-04-08

申请号：US17672249

申请日：2022-02-15

Applicant: Samsung Display Co., LTD.

Inventor： Joon Yong Park ,  Gyung Min Baek ,  Shin Il Choi ,  Do Keun Song ,  Young Rok Kim ,  Jong Hyun Choung

IPC: H01L27/12 ,  H01L23/00 ,  H01L25/16 ,  H10D86/01 ,  H10D86/40 ,  H10D86/60

Abstract: A display device includes conductive layers including wires and conductive patterns in a display area and a pad area, a via layer on the conductive layers, a first electrode and a second electrode on the via layer in the display area and spaced apart from each other, a first insulating layer on the first electrode and the second electrode, light emitting elements on the first electrode and the second electrode spaced apart from each other on the first insulating layer, and a first connection electrode on the first electrode and electrically contacting the light emitting elements, and a second connection electrode on the second electrode and electrically contacting the light emitting elements, each of the conductive layers includes a first metal layer and a second metal layer on the first metal layer, and the second metal layer contains copper and has a grain size of about 155 nm or less.