US 12,336,352 B2
Display apparatus
Po-Jen Chen, Hsinchu (TW); Tai-Tso Lin, Hsinchu (TW); Chen-Yuan Tu, Hsinchu (TW); and Chia Wen Dai, Hsinchu (TW)
Assigned to Au Optronics Corporation, Hsinchu (TW)
Filed by Au Optronics Corporation, Hsinchu (TW)
Filed on May 17, 2022, as Appl. No. 17/745,883.
Claims priority of application No. 110147887 (TW), filed on Dec. 21, 2021.
Prior Publication US 2023/0197917 A1, Jun. 22, 2023
Int. Cl. H10H 20/857 (2025.01); H10H 20/831 (2025.01)
CPC H10H 20/857 (2025.01) [H10H 20/831 (2025.01)] 10 Claims
OG exemplary drawing
 
1. A display apparatus comprising:
a driving backplane comprising:
a substrate;
a pixel driving circuit disposed on the substrate; and
a pad electrically connected to the pixel driving circuit, wherein the pad comprises a first metal layer, a first intermetallic layer and a first diffusion barrier layer, and the first metal layer, the first intermetallic layer and the first diffusion barrier layer are sequentially stacked along a direction away from the substrate; and
a light-emitting element comprising:
an electrode; and
a conductive bump electrically connected to the electrode, wherein the conductive bump comprises a second intermetallic layer, and the first diffusion barrier layer is located between the second intermetallic layer and the first intermetallic layer.