公开(公告)号：US11592712B2

公开(公告)日：2023-02-28

申请号：US17560786

申请日：2021-12-23

Applicant: Japan Display Inc.

Inventor： Manabu Mizuno ,  Kentaro Okuyama ,  Hiroshi Inamura ,  Hiroki Sugiyama

IPC: G02F1/13357 ,  F21V8/00 ,  G02F1/1334 ,  G02F1/137 ,  G02F1/1339 ,  G02F1/1341

Abstract: According to an aspect, a display apparatus includes: a first light-transmissive substrate; a second light-transmissive substrate arranged to face the first light-transmissive substrate; a liquid crystal layer including polymer dispersed liquid crystals sealed between the first light-transmissive substrate and the second light-transmissive substrate; at least one light-emitting device arranged to face at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate; and at least one reflector arranged on at least one of a side surface of the first light-transmissive substrate or a side surface of the second light-transmissive substrate, the side surface of the first or second light-transmissive substrate being on an opposite side of the side surface of the first or second light-transmissive substrate to which the at least one light-emitting device faces, and configured to reflect light at the side surface on the opposite side.

公开(公告)号：US11556033B2

公开(公告)日：2023-01-17

申请号：US17467904

申请日：2021-09-07

Applicant: Japan Display Inc.

Inventor： Kojiro Ikeda ,  Tenfu Nakamura ,  Kentaro Okuyama

IPC: G02F1/1343 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first substrate having a first transparent substrate and a pixel electrode, a second substrate having a second transparent substrate, a first common electrode, a second common electrode, and an insulating film disposed between the first common electrode and the second common electrode, and a liquid crystal layer. The first common electrode is disposed between the liquid crystal layer and the insulating film, and includes a first opening and a first electrode portion. The second common electrode is disposed between the insulating film and the second transparent substrate, and includes a second electrode portion overlapping the first opening.

公开(公告)号：US11340508B2

公开(公告)日：2022-05-24

申请号：US17331732

申请日：2021-05-27

Applicant: Japan Display Inc.

Inventor： Hiroki Sugiyama ,  Yoshihide Ohue ,  Manabu Mizuno ,  Kentaro Okuyama

IPC: G02F1/1362 ,  G02F1/1368

Abstract: A display device according to an aspect includes: an array substrate including a plurality of first light-transmitting electrodes each disposed in a corresponding one of pixels; a counter substrate including positions that overlap the first light-transmitting electrodes in a plan view and are provided with a second light-transmitting electrode; a liquid crystal layer including polymer-dispersed liquid crystals filled between the array substrate and the counter substrate; and at least one light emitter configured to emit light toward a side surface of the counter substrate. The array substrate includes, in each of the pixels, a third light-transmitting electrode and a conductive metal layer. The third light-transmitting electrode at least partially overlaps the first light-transmitting electrode in the plan view with an inorganic insulating layer interposed therebetween, and the conductive metal layer is stacked on the third light-transmitting electrode.

公开(公告)号：US11333917B2

公开(公告)日：2022-05-17

申请号：US17120478

申请日：2020-12-14

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama

IPC: G02F1/1334 ,  G02F1/13357 ,  G09G3/34 ,  G09G3/36 ,  G06F3/14

Abstract: According to one embodiment, a display device includes a first display panel, and a polarizer opposed to the first display panel and having a transmission axis for transmitting linearly polarized light. The first display panel includes a first substrate, a second substrate opposed to the first substrate, and a first liquid crystal layer held between the first substrate and the second substrate and including streak-like polymers and liquid crystal molecules. An extension direction of the polymers is substantially orthogonal to the transmission axis.

公开(公告)号：US11275284B2

公开(公告)日：2022-03-15

申请号：US17231179

申请日：2021-04-15

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Kentaro Okuyama ,  Kojiro Ikeda

IPC: G02F1/1362 ,  G02F1/1368

Abstract: According to one embodiment, a display device includes a first substrate including a first transparent substrate, a wiring portion, and a pixel electrode, a second substrate including a second transparent substrate, a common electrode opposed to the pixel electrode, a light-shielding layer overlapping the wiring portion between the second transparent substrate and the common electrode, and a transparent layer disposed between the second transparent substrate and the light-shielding layer, a liquid crystal layer including a stripe-shaped polymer and liquid crystal molecules, and light-emitting elements. A refractive index of the transparent layer is less than a refractive index of the second transparent substrate.

公开(公告)号：US11269227B2

公开(公告)日：2022-03-08

申请号：US17179529

申请日：2021-02-19

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: G02F1/1362 ,  G02F1/1334 ,  G02F1/1335

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.

公开(公告)号：US10782558B2

公开(公告)日：2020-09-22

申请号：US16571976

申请日：2019-09-16

Applicant: Japan Display Inc.

Inventor： Manabu Mizuno ,  Kentaro Okuyama ,  Hiroshi Inamura ,  Hideki Kaneko ,  Hiroki Sugiyama

IPC: G02F1/1335 ,  G02F1/1368 ,  G02F1/1362 ,  G02F1/1334 ,  G02F1/137

Abstract: A display device according to one aspect of the present invention includes a first substrate including at least a pixel electrode and a pixel switching circuit portion, a second substrate arranged to face the first substrate, a liquid crystal layer arranged between the first substrate and the second substrate, and configured to modulate light, the light being propagated while reflected between the first substrate and the second substrate, and a reflecting layer arranged over a liquid crystal layer side of the pixel switching circuit portion, partially superimposed with the pixel switching circuit portion, and electrically coupled with the pixel electrode, the reflecting layer having higher reflectance of the light than any members included in the pixel switching circuit portion.

公开(公告)号：US20200012155A1

公开(公告)日：2020-01-09

申请号：US16573212

申请日：2019-09-17

Applicant: Japan Display Inc.

Inventor： Hiroki Sugiyama ,  Kentaro Okuyama ,  Hideki Kaneko ,  Hiroshi Inamura ,  Manabu Mizuno

IPC: G02F1/1335 ,  G02F1/1334 ,  G02F1/1345

Abstract: A display device according to one aspect of the present invention includes a first substrate including a pixel portion and a terminal portion, a second substrate arranged to face the pixel portion, a first light source device arranged in the terminal portion, and irradiating a first end surface of the second substrate with first light, a liquid crystal layer arranged between the first substrate and the second substrate, and a semiconductor element arranged on a side opposite to a side of the pixel portion across the first light source device, and electrically coupled with the terminal portion, wherein the first light is propagated while reflected between the first substrate and the second substrate, and the liquid crystal layer modulates the propagated first light.

公开(公告)号：US20190294012A1

公开(公告)日：2019-09-26

申请号：US16357500

申请日：2019-03-19

Applicant: Japan Display Inc.

Inventor： Kentaro Okuyama ,  Yudai Numata

IPC: G02F1/1362 ,  G02F1/1335 ,  G02F1/1334

Abstract: According to one embodiment, a display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first insulating substrate, a scanning line, a signal line, a switching, and a pixel electrode. The liquid crystal layer includes a polymer in a shape of a streak and a liquid crystal molecule. The scanning line includes a conductive layer located between the first insulating substrate and the liquid crystal layer, and a first reflective layer located between the first insulating substrate and the conductive layer and having a reflectance higher than a reflectance of the conductive layer.

公开(公告)号：US10317731B2

公开(公告)日：2019-06-11

申请号：US14921060

申请日：2015-10-23

Applicant: Japan Display Inc.

Inventor： Akira Sakaigawa ,  Kentaro Okuyama

IPC: G09G5/02 ,  G02F1/1335 ,  G09G3/34 ,  G09G3/36 ,  G02F1/13 ,  G02F1/1334

Abstract: A display device includes a light modulation layer having predetermined refractive index anisotropy and including plural light modulation areas which differ in responsiveness to an electric field generated by electrodes, a polarization layer which is disposed on the front side of the light modulation layer, on which side external light enters, which shuts out light other than light having a predetermined polarization direction, a reflection layer disposed on the back side of the light modulation layer, and a phase retardation layer which is disposed between the polarization and light modulation layers, which creates a predetermined phase difference between incident light entering through the polarization layer and reflected light from the reflection layer, and which polarizes the reflected light in a direction different from the predetermined polarization direction. The light modulation layer transmits the reflected light when no electric field is generated and scatters it otherwise.