公开(公告)号：US11675228B2

公开(公告)日：2023-06-13

申请号：US17704144

申请日：2022-03-25

Applicant: Japan Display Inc.

Inventor： Yosuke Nakamori ,  Rina Yamamoto

IPC: G02F1/13357 ,  G02F1/1339 ,  G02F1/1335

CPC classification number: G02F1/133603 ,  G02F1/1339 ,  G02F1/133607

Abstract: According to one embodiment, an illumination device includes a substrate, a plurality of light emitting elements mounted on the substrate, an optical sheet located on the light emitting elements, and a foam located between the light emitting elements and the optical sheet and overlapping the light emitting elements.

公开(公告)号：US10809555B2

公开(公告)日：2020-10-20

申请号：US15663982

申请日：2017-07-31

Applicant: Japan Display Inc.

Inventor： Yosuke Nakamori ,  Ken Hirabayashi

IPC: G02F1/1333 ,  G06F3/041 ,  G01L1/14 ,  F21V8/00 ,  G02F1/1339 ,  G06F3/044

Abstract: According to one embodiment, a force sensing device includes a first insulating layer, a first electrode layer on the first insulating layer, a second electrode layer provided in opposition to the first electrode layer, and an elastic layer held between one or both of the first insulating layer and the first electrode layer, and the second electrode layer, and configured to prevent the first and second electrode layers from coming into contact with each other even while allowing the first and second electrode layers to get close to each other. When the first electrode layer or the second electrode layer is pressed, the pressing force is sensed on the basis of a variation in the capacitance between the first electrode layer and the second electrode layer.

公开(公告)号：US10379392B2

公开(公告)日：2019-08-13

申请号：US15692448

申请日：2017-08-31

Applicant: Japan Display Inc.

Inventor： Koji Noguchi ,  Takafumi Suzuki ,  Yasuyuki Teranishi ,  Yosuke Nakamori

IPC: G02F1/1333 ,  G02F1/1335 ,  G06F3/041 ,  G06F3/044 ,  G02F1/1343

Abstract: According to one embodiment, a display device includes a display panel including a first substrate including a display area and a first detection electrode, a backlight device opposed to the first substrate with a gap therebetween, a second detection electrode opposing the first detection electrode via the backlight device, and an elastic member between the backlight device and the second detection electrode, including a first region opposing a central portion of the back light device and a second region located to surround the first region. The first region and the second region are different in hardness in a thickness direction of the elastic member.

公开(公告)号：US11016324B2

公开(公告)日：2021-05-25

申请号：US16710663

申请日：2019-12-11

Applicant: Japan Display Inc.

Inventor： Yosuke Nakamori ,  Ken Hirabayashi ,  Koji Noguchi

IPC: G02F1/1333 ,  G02F1/13357 ,  G02F1/1343

Abstract: A display device is provided and includes a liquid crystal panel comprising a pair of substrates, a liquid crystal layer between the substrates, a first electrode portion and a pair of polarizers that sandwich the substrates; a backlight device comprising a casing including a support frame, a bottom plate, a light guide, at least one optical sheet on the light guide, and a light source in the casing; and an adhesive member between the liquid crystal panel and the backlight device, wherein the support frame includes a step portion on which the optical sheet is placed, the adhesive member comprises a back surface fixed over the optical sheet and the support frame, and a top surface fixed to one of the polarizers, and a width of the adhesive member is as same as a width of the support frame.

公开(公告)号：US10310328B2

公开(公告)日：2019-06-04

申请号：US15478612

申请日：2017-04-04

Applicant: Japan Display Inc.

Inventor： Yosuke Nakamori ,  Takafumi Suzuki

IPC: G02F1/1335 ,  F21V8/00 ,  G02F1/1343

Abstract: According to one embodiment, a backlight device includes a case, a light guide in the case, a first optical sheet on the light guide, a second optical sheet on the first optical sheet, a first adhesive provided between the case and at least one of the first optical sheet and the second optical sheet, to stick at least one of the optical sheets to the case, and a light source in the case, configured to radiate light to the light guide.

公开(公告)号：US10234976B2

公开(公告)日：2019-03-19

申请号：US15658956

申请日：2017-07-25

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Shota Hosaka ,  Yosuke Nakamori

IPC: G06F3/041 ,  G02F1/1343 ,  G02F1/1333 ,  G06F3/044 ,  H01L27/32 ,  F21V8/00 ,  H01L51/52

Abstract: According to an aspect, a force detection apparatus includes: a first electrode facing an input surface to which an object to be detected applies a force; a second electrode facing the first electrode across a first layer deformable by the force; a conductor facing the second electrode across a second layer deformable by the force; and a force detection controller calculates a force signal value indicating the force, based on a first influence amount and a second influence amount, the first influence amount being an amount of influence added by the force to first capacitance between the first electrode and the second electrode, and the second influence amount being an amount of influence added by the force to second capacitance between the second electrode and the conductor.

公开(公告)号：US11796860B2

公开(公告)日：2023-10-24

申请号：US17888544

申请日：2022-08-16

Applicant: Japan Display Inc.

Inventor： Yosuke Nakamori

IPC: G02F1/13357 ,  G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133603 ,  G02B6/0078 ,  G02F1/133601 ,  G02F1/133608

Abstract: According to one embodiment, an illumination device includes a first light emitting element, a second light emitting element, an overcoat layer covering the first and second light emitting elements, a first transparent block disposed on the overcoat layer and overlapping the first light emitting element, a second transparent block disposed on the overcoat layer and overlapping the second light emitting element, and an optical sheet group disposed on the first transparent block and the second transparent block. A first side surface of the first transparent block and a second side surface of the second transparent block face each other. An air layer is interposed between the first side surface and the second side surface.

公开(公告)号：US10365746B2

公开(公告)日：2019-07-30

申请号：US16261015

申请日：2019-01-29

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Shota Hosaka ,  Yosuke Nakamori

IPC: G06F3/041 ,  F21V8/00 ,  G02F1/1343 ,  G06F3/044 ,  H01L27/32 ,  H01L51/52 ,  G02F1/1333

Abstract: According to an aspect, a force detection apparatus includes: a first electrode facing an input surface to which an object to be detected applies a force; a second electrode facing the first electrode across a first layer deformable by the force; a conductor facing the second electrode across a second layer deformable by the force; and a force detection controller calculates a force signal value indicating the force, based on a first influence amount and a second influence amount, the first influence amount being an amount of influence added by the force to first capacitance between the first electrode and the second electrode, and the second influence amount being an amount of influence added by the force to second capacitance between the second electrode and the conductor.

公开(公告)号：US20170285255A1

公开(公告)日：2017-10-05

申请号：US15478612

申请日：2017-04-04

Applicant: Japan Display Inc.

Inventor： Yosuke Nakamori ,  Takafumi Suzuki

IPC: F21V8/00 ,  G02F1/1343 ,  G02F1/1335

CPC classification number: G02B6/0088 ,  G02B6/005 ,  G02B6/0055 ,  G02F1/133528 ,  G02F1/134309

Abstract: According to one embodiment, a backlight device includes a case, a light guide in the case, a first optical sheet on the light guide, a second optical sheet on the first optical sheet, a first adhesive provided between the case and at least one of the first optical sheet and the second optical sheet, to stick at least one of the optical sheets to the case, and a light source in the case, configured to radiate light to the light guide.

公开(公告)号：US11163411B2

公开(公告)日：2021-11-02

申请号：US16511793

申请日：2019-07-15

Applicant: Japan Display Inc.

Inventor： Takafumi Suzuki ,  Shota Hosaka ,  Yosuke Nakamori

IPC: G06F3/044 ,  G02F1/1343 ,  G02F1/1333 ,  G06F3/041

Abstract: A force detection apparatus is provided and includes a first electrode facing an input surface to which an object to be detected applies force, and configured to be supplied with a reference potential; a second electrode and a third electrode facing the first electrode; a first conductor arranged between the first electrode, and the second and third electrodes, and configured to be supplied with a drive signal; a first dielectric layer arranged between the first electrode and the first conductor; and a second dielectric layer arranged between the first conductor, and the second and third electrodes, wherein the second electrode is configured to be supplied with the reference potential, and wherein a signal that is same as the drive signal is supplied in synchronization with the drive signal to the third electrode.