公开(公告)号：US20240055551A1

公开(公告)日：2024-02-15

申请号：US18278480

申请日：2021-04-14

Applicant: Sharp Display Technology Corporation

Inventor： Masayuki KANEHIRO ,  Youhei NAKANISHI ,  Shota OKAMOTO

IPC: H01L33/06 ,  H01L33/62

CPC classification number: H01L33/06 ,  H01L33/62 ,  H01L2933/0016

Abstract: A light-emitting device includes a bank provided with an opening including an opening sidewall that is inclined, a lower layer electrode provided with an inclined face and formed on the bank, closing the opening, a upper layer electrode provided with an inclined face and formed above the second electrode, and an EL layer provided with an inclined face and formed between the lower layer electrode and the upper layer electrode, adjacently to the lower layer electrode and the upper layer electrode. The light-emitting device further includes a first refractive index layer having a refractive index higher than 1.7, and a second refractive index layer having a refractive index lower than the refractive index of the first refractive index layer. The first and second refractive index layers are formed in this order on the upper layer electrode at a through-hole.

公开(公告)号：US20240276852A1

公开(公告)日：2024-08-15

申请号：US18566771

申请日：2021-08-18

Applicant: Sharp Display Technology Corporation

Inventor： Youhei NAKANISHI

IPC: H10K59/80 ,  H10K59/122 ,  H10K59/35

CPC classification number: H10K59/8791 ,  H10K59/122 ,  H10K59/80518 ,  H10K59/353

Abstract: A display device includes: a base substrate layer; a thin film transistor layer provided on the base substrate layer; and a light-emitting element layer provided on the thin film transistor layer, the light-emitting element layer including a plurality of pixel electrodes, a common edge cover, a plurality of light-emitting function layers, and a common electrode layered in order corresponding to a plurality of subpixels constituting a display region, wherein the edge cover covers a peripheral edge portion of each of the pixel electrodes, in each of the subpixels, a portion of the plurality of pixel electrodes exposed from the edge cover constitutes a light-emitting region, and a portion of the plurality of pixel electrodes overlapping the edge cover constitutes a non-light-emitting region, and a reflective surface having an uneven shape is provided in the non-light-emitting region.

公开(公告)号：US20240206235A1

公开(公告)日：2024-06-20

申请号：US18287927

申请日：2021-05-28

Applicant: Sharp Display Technology Corporation

Inventor： Youhei NAKANISHI

IPC: H10K59/122 ,  H10K59/35 ,  H10K59/80

CPC classification number: H10K59/122 ,  H10K59/35 ,  H10K59/876

Abstract: A display device comprises a bank in which a plurality of holes are formed; and a plurality of light-emitting layers formed in the plurality of holes, wherein, among the plurality of light-emitting layers, a light-emitting layer, which is provided closer to a position in which the plurality of holes are low in density, exhibits a greater emission wavelength.