公开(公告)号：US12135250B2

公开(公告)日：2024-11-05

申请号：US17690301

申请日：2022-03-09

Applicant: Japan Display Inc.

Inventor： Hiroumi Kinjo

IPC: G01L1/16 ,  H10N30/00 ,  H10N30/06 ,  H10N30/079 ,  H10N30/098 ,  H10N30/30 ,  H10N30/857 ,  H10N30/87

Abstract: A piezoelectric sensor, comprising: a stress applying layer in which a plurality of stress applying grooves extending in parallel with a first direction are formed in a predetermined region on a whole surface; and a piezoelectric layer that is layered on the stress applying layer and formed from a polymer piezoelectric material containing an optical active polymer.

公开(公告)号：US12114550B2

公开(公告)日：2024-10-08

申请号：US18481293

申请日：2023-10-05

Applicant: Japan Display Inc.

Inventor： Hayata Aoki ,  Hiroumi Kinjo ,  Masumi Nishimura

IPC: H10K59/131 ,  H10K50/86 ,  H10K59/122 ,  H10K59/35

CPC classification number: H10K59/131 ,  H10K59/353

Abstract: According to one embodiment, a display device includes a lower electrode arranged on a first insulating layer, a second insulating layer arranged on the first insulating layer, having an opening overlapping the lower electrode, and being in a lattice form, a feed line arranged on the second insulating layer, having a first line portion, a second line portion, and a third line portion being continuous with the first and second line portions and having a different width from the first and second line portions, an organic layer arranged in the opening and covering the lower electrode, and an upper electrode being in contact with the first, second and third line portions, and covering the organic layer.