公开(公告)号：US12216346B2

公开(公告)日：2025-02-04

申请号：US18515522

申请日：2023-11-21

Applicant: Japan Display Inc.

Inventor： Kazuki Ichihara ,  Naoyuki Asano ,  Motoki Tsuda

IPC: G02F1/1333 ,  G02F1/1334 ,  G02F1/13357

Abstract: A display device includes a display panel including a polymer-dispersed liquid crystal layer between a pair of substrates, a transparent substrate disposed on at least one side of the display panel, and a lighting unit configured to project light from the side of the transparent substrate. The lighting unit includes at least one light source, at least one light guide incident with the light emitted from the light source, and a support member having an L-shaped cross section and extending along one side of the display panel to which the at least one light source and the at least one light guide are fixed. The at least one light source and the at least one light guide are disposed on different sides of the support member. The lighting unit is fixed to the transparent substrate or the display panel by the support member.

公开(公告)号：US12072574B2

公开(公告)日：2024-08-27

申请号：US18328810

申请日：2023-06-05

Applicant: Japan Display Inc.

Inventor： Michikazu Noguchi ,  Motoki Tsuda ,  Kazuki Ichihara

IPC: G02F1/13357 ,  F21V8/00

CPC classification number: G02F1/133603 ,  G02B6/0068 ,  G02B6/0073 ,  G02B6/0083 ,  G02B6/0086

Abstract: A plurality of light emitting diode elements of a display panel (display apparatus) include: a first light emitting diode element, a second light emitting diode element and a third light emitting diode element. In the X direction, a plurality of the first light emitting diode elements, single or a plurality of the second light emitting diode elements and single or a plurality of the third light emitting diode elements are repeatedly arranged. The total number of the first light emitting diode elements is larger than the total number of the second light emitting diode elements. Light flux of the light of the first color emitted from the first light emitting diode elements is lower than light flux of the light of the second color emitted from the second light emitting diode elements.

公开(公告)号：US11874546B2

公开(公告)日：2024-01-16

申请号：US18110394

申请日：2023-02-16

Applicant: Japan Display Inc.

Inventor： Kazuki Ichihara ,  Naoyuki Asano ,  Motoki Tsuda

IPC: G02F1/1333 ,  G02F1/1334 ,  G02F1/13357

CPC classification number: G02F1/133308 ,  G02F1/1334 ,  G02F1/133615

Abstract: A display device includes a display panel including a polymer-dispersed liquid crystal layer between a pair of substrates, a transparent substrate disposed on at least one side of the display panel, and a lighting unit configured to project light from the side of the transparent substrate. The lighting unit includes at least one light source, at least one light guide incident with the light emitted from the light source, and a support member having an L-shaped cross section and extending along one side of the display panel to which the at least one light source and the at least one light guide are fixed. The at least one light source and the at least one light guide are disposed on different sides of the support member. The lighting unit is fixed to the transparent substrate or the display panel by the support member.

公开(公告)号：US11953786B2

公开(公告)日：2024-04-09

申请号：US18452626

申请日：2023-08-21

Applicant: Japan Display Inc.

Inventor： Motoki Tsuda ,  Naoyuki Asano ,  Kazuki Ichihara

IPC: G02F1/1335 ,  F21V8/00

CPC classification number: G02F1/133616 ,  G02B6/003

Abstract: A lens portion of a display device includes: a first lens arranged between a light guide plate and a light-emitting element portion, and having a plurality of first prisms arranged on a first light-exiting surface; and a second lens arranged between the first lens and the light-emitting element portion, and having a plurality of second prisms arranged on a second light-exiting surface arranged at a position facing a light-entering surface. The first lens includes a plurality of diffusing prisms arranged on the light-entering surface and capable of diffusing light emitted from the second lens and introducing said light into the first lens.

公开(公告)号：US11940644B2

公开(公告)日：2024-03-26

申请号：US18195372

申请日：2023-05-10

Applicant: Japan Display Inc.

Inventor： Motoki Tsuda ,  Kazuki Ichihara ,  Michikazu Noguchi

IPC: F21V8/00 ,  G02F1/13357

CPC classification number: G02B6/003 ,  G02B6/0068 ,  G02F1/133621 ,  G02F2202/28

Abstract: A performance of an apparatus is improved. A display apparatus includes: a light guide panel; a light source unit including a plurality of light emitting diode elements arranged in an X direction at a position facing a side surface of the light guide panel; and a plurality of lenses arranged in the X direction between the light guide panel and the light source unit and adhered to each other while sandwiching an adhesive layer allowing visible light to penetrate therethrough. Each of the plurality of lenses includes a surface facing the light source unit, a surface opposite to this surface, and a side surface (lens side surface) crossing these surfaces and being adhered to the adhesive layer. The adhesive layer is arranged between the sides surfaces facing each other.