公开(公告)号：US20230066311A1

公开(公告)日：2023-03-02

申请号：US17465053

申请日：2021-09-02

Applicant: Sharp Display Technology Corporation

Inventor： DAVID JAMES MONTGOMERY ,  HYWEL HOPKIN

IPC: H01L27/32 ,  H01L51/52

Abstract: A top-emitting subpixel structure may include at least one bank structure defining a plurality of emissive areas, and an emissive structure located in each emissive area. The subpixel structure may have a subpixel length and a subpixel width less than the subpixel length, a ratio of the subpixel length to the subpixel width defining a subpixel aspect ratio. Each emissive area may have an emissive area length and an emissive area width shorter than the emissive area length, a ratio of the emissive area length to the emissive area width defining an emissive area aspect ratio. The subpixel length may define a primary axis when the subpixel aspect ratio is greater than the emissive area aspect ratio; otherwise, the emissive area length may define the primary axis. At least a majority of the emissive areas may be arranged successively widthwise along a secondary axis perpendicular to the primary axis.

公开(公告)号：US20230037057A1

公开(公告)日：2023-02-02

申请号：US17390246

申请日：2021-07-30

Applicant: Sharp Display Technology Corporation

Inventor： HYWEL HOPKIN ,  VALERIE BERRYMAN-BOUSQUET ,  ANDREW KAY ,  ALEX YUDIN ,  ALESSANDRO MINOTTO

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00 ,  H01L51/52

Abstract: A top-emitting pixel device is disclosed. The pixel device may include a reflective bottom electrode disposed over a substrate, a first charge transport layer disposed over the reflective bottom electrode, an emissive layer disposed over the first charge transport layer, and a second charge transport layer disposed over the emissive layer. Further, the pixel device may include a patterned transparent polymer electrode disposed over the second charge transport layer and extending laterally to cover an emissive area of the top-emitting pixel device, and a patterned auxiliary electrode disposed at least partially over the patterned transparent polymer electrode outside of the emissive area of the top-emitting pixel device to make direct electrical contact with the patterned transparent polymer electrode.