公开(公告)号：US20240049489A1

公开(公告)日：2024-02-08

申请号：US18361378

申请日：2023-07-28

Applicant: Japan Display Inc.

Inventor： Jun NITTA

IPC: H10K39/32 ,  H10K71/50 ,  H10K71/60 ,  H10K39/00

CPC classification number: H10K39/32 ,  H10K71/50 ,  H10K71/60 ,  H10K39/501 ,  H10K2102/10

Abstract: An optical sensor includes: a lower substrate; a plurality of lower electrodes on the lower substrate; an organic photoelectric conversion layer that is provided in common on the plurality of lower electrodes and includes a hole transport layer, an active layer, and an electron transport layer in this order from the lower substrate side; a conductive adhesive that is provided between each of the plurality of lower electrodes and the organic photoelectric conversion layer and electrically connects each of the plurality of lower electrodes to the organic photoelectric conversion layer; a light-transmitting upper electrode provided on the organic photoelectric conversion layer; and a light-transmitting upper substrate provided on the upper electrode.

公开(公告)号：US20220199937A1

公开(公告)日：2022-06-23

申请号：US17545440

申请日：2021-12-08

Applicant: Japan Display Inc.

Inventor： Jun NITTA

IPC: H01L51/52 ,  H01L27/32

Abstract: According to one embodiment, a display device includes first and second lower electrodes, a second insulating layer arranged between the first and second lower electrodes, and having first and second openings overlapping the first and second lower electrodes, a partition arranged on the second insulating layer, a first organic layer arranged in the first opening and covering the first lower electrode, and a first upper electrode covering the first organic layer. The partition has a first layer formed of a metal material and a second layer protruding from a first side surface of the first layer toward the first opening. The first upper electrode is in contact with the first side surface.

公开(公告)号：US20240341114A1

公开(公告)日：2024-10-10

申请号：US18750319

申请日：2024-06-21

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masumi NISHIMURA ,  Jun NITTA

IPC: H10K50/12 ,  H10K50/17 ,  H10K71/00

CPC classification number: H10K50/12 ,  H10K50/17 ,  H10K71/00

Abstract: According to one embodiment, a display device includes a lower electrode, a second insulating layer including an opening overlapping the lower electrode, an organic layer including a light-emitting layer and a functional layer, disposed in the opening and covering the lower electrode and an upper electrode covering the organic layer. The functional layer includes a first region located between the lower electrode and the light-emitting layer and a second region including an end surface located directly above the second insulating layer. A dopant concentration of a guest material in the second region is lower than the dopant concentration of the guest material in the first region.

公开(公告)号：US20240276784A1

公开(公告)日：2024-08-15

申请号：US18437263

申请日：2024-02-09

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Jun NITTA ,  Marina MOCHIZUKI

IPC: H10K59/122

CPC classification number: H10K59/122

Abstract: According to one embodiment, a display device includes a plurality of pixels including a first pixel, a second pixel and a third pixel, each of the plurality of pixels include, an anode, an organic EL layer provided on the anode, at least one set of sidewall pairs provided to cover a side surface of the organic EL layer and a cathode provided in an opening portion of the bank and in contact with the organic EL layer. The at least one set of side wall pairs includes a first sidewall formed of aluminum oxide and a second sidewall formed of silicon nitride. The first pixel includes at least two sets of the side wall pairs, and the second pixel includes at least one set of the sidewall pair.

公开(公告)号：US20240040818A1

公开(公告)日：2024-02-01

申请号：US18357232

申请日：2023-07-24

Applicant: Japan Display Inc.

Inventor： Takahiro USHIKUBO ,  Hayata AOKI ,  Jun NITTA ,  Hiroumi KINJO

IPC: H10K50/19 ,  H10K59/122 ,  H10K71/00 ,  H10K50/15 ,  H10K50/18 ,  H10K50/17

CPC classification number: H10K50/19 ,  H10K59/122 ,  H10K71/00 ,  H10K50/156 ,  H10K50/181 ,  H10K50/171

Abstract: To provide a display device, in which deterioration in characteristics is small even when some of layers are exposed to a solvent or an atmosphere when photolithography is performed, and a method for manufacturing the display device. The display device having a pixel including a plurality of sub-pixels includes: a substrate; a lower electrode provided on an upper side of the substrate; an organic EL layer provided on the lower electrode and including an emission layer configured to emit a different color for each sub-pixel; and an upper electrode disposed on an upper side of the organic EL layer. An exposure protection layer having transparency and conductivity provided for each sub-pixel is formed between the organic EL layer and the upper electrode. No emission layer is formed between the exposure protection layer and the upper electrode.

公开(公告)号：US20220231250A1

公开(公告)日：2022-07-21

申请号：US17574812

申请日：2022-01-13

Applicant: Japan Display Inc.

Inventor： Hayata AOKI ,  Masumi NISHIMURA ,  Jun NITTA

IPC: H01L51/50 ,  H01L51/56

Abstract: According to one embodiment, a display device includes a lower electrode, a second insulating layer including an opening overlapping the lower electrode, an organic layer including a light-emitting layer and a functional layer, disposed in the opening and covering the lower electrode and an upper electrode covering the organic layer. The functional layer includes a first region located between the lower electrode and the light-emitting layer and a second region including an end surface located directly above the second insulating layer. A dopant concentration of a guest material in the second region is lower than the dopant concentration of the guest material in the first region.