公开(公告)号：US20240397599A1

公开(公告)日：2024-11-28

申请号：US18794713

申请日：2024-08-05

Applicant: Japan Display Inc.

Inventor： Hiroyuki WAKANA

IPC: H05B47/16 ,  G02F1/1347 ,  H05B47/165

Abstract: An illumination device includes a light source part configured to emit light to a floor surface of a room, a storage configured to store light distribution area data in association with time information, the light distribution area data being related to an area to be irradiated with light in the room, a time information acquirer configured to acquire time information related to current time, a light distribution area setter for setting a light distribution area of light from the light source part, and a controller configured to read out, from the storage, light distribution area data corresponding to the time information acquired by the time information acquirer and control the light distribution area setter based on the light distribution area data.

公开(公告)号：US20240319527A1

公开(公告)日：2024-09-26

申请号：US18735905

申请日：2024-06-06

Applicant: Japan Display Inc.

Inventor： Takayuki IMAI ,  Kazunori YAMAGUCHI ,  Hiroyuki WAKANA

IPC: G02F1/133 ,  G02F1/1335

CPC classification number: G02F1/13306 ,  G02F1/133531

Abstract: An illumination control device includes a storage that is non-transitory and stores setting information for controlling a light emitter configured to emit light, and a controller that writes the setting information as of then to the storage when a request for writing the setting information is input and reads the setting information from the storage when a request for reading the setting information is input. The light emitter is controlled based on the setting information read by the controller.

公开(公告)号：US20240295305A1

公开(公告)日：2024-09-05

申请号：US18648114

申请日：2024-04-26

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA ,  Takeo KOITO ,  Hiroyuki WAKANA

IPC: F21V9/40 ,  F21V23/04 ,  F21Y113/00 ,  H05B47/13

CPC classification number: F21V9/40 ,  F21V23/0471 ,  H05B47/13 ,  F21Y2113/30

Abstract: According to an aspect, an illumination device includes: a light distribution controller having a light distribution control region in which a transmission region of light is changeable; a plurality of types of light sources each disposed at a position facing the light distribution controller; and a controller configured to control operation of the light distribution controller and the plurality of types of light sources. The light distribution controller includes a plurality of liquid crystal panels stacked in a facing direction of the light distribution controller and the light source.

公开(公告)号：US20240397600A1

公开(公告)日：2024-11-28

申请号：US18798175

申请日：2024-08-08

Applicant: Japan Display Inc.

Inventor： Hiroyuki WAKANA

IPC: H05B47/16 ,  F21S8/04 ,  G02F1/1333 ,  H05B47/155 ,  H05B47/165

Abstract: An illumination device includes a light source part configured to emit light to a floor surface of a room, a light distribution area setter configured to set a light distribution area of light from the light source part to a first light distribution area or a second light distribution area different from the first light distribution area, and a controller configured to control the light distribution area setter so that light is emitted to the first light distribution area and the second light distribution area in a time-division manner. The second light distribution area set by the light distribution area setter includes a part closer to a corner of the floor surface than the first light distribution area.

公开(公告)号：US20240381509A1

公开(公告)日：2024-11-14

申请号：US18781408

申请日：2024-07-23

Applicant: Japan Display Inc.

Inventor： Kazunori YAMAGUCHI ,  Hiroyuki WAKANA ,  Takayuki IMAI

IPC: H05B47/105 ,  F21V33/00 ,  G02F1/1347 ,  G06F1/16 ,  H05B47/175 ,  H05B47/19

Abstract: According to an aspect, an illumination device includes a light source, a light adjustment device configured to control a light distribution angle of light emitted from the light source, and a controller configured to control the light adjustment device. The controller includes a storage configured to hold correspondence information indicating a correspondence relation between first data that is input from a control device and second data that is used to control the light distribution angle, a data generator configured to generate second data by adjusting the first data based on the correspondence information, and a driver configured to drive the light adjustment device based on the second data.

公开(公告)号：US20240389209A1

公开(公告)日：2024-11-21

申请号：US18785955

申请日：2024-07-26

Applicant: Japan Display Inc.

Inventor： Kazunori YAMAGUCHI ,  Hiroyuki WAKANA ,  Takayuki IMAI

IPC: H05B47/105 ,  F21V9/40 ,  F21V33/00 ,  G02F1/1347 ,  H05B47/175 ,  H05B47/19

Abstract: An illumination device includes a light source, a light adjustment device configured to control a light distribution angle of light emitted from the light source, and a controller configured to control the light source and the light adjustment device. The controller includes a storage configured to hold information indicating a correspondence relation between an irradiation area calculated based on a light distribution angle command value and an irradiation area ratio to a predetermined reference irradiation area, a light emission intensity generator configured to generate light emission intensity of the light source based on the information, and a driver configured to drive the light source based on the light emission intensity.

公开(公告)号：US20220321227A1

公开(公告)日：2022-10-06

申请号：US17687865

申请日：2022-03-07

Applicant: Japan Display Inc.

Inventor： Hiroyuki WAKANA

IPC: H04B10/50 ,  H04B10/572 ,  H04B10/116

Abstract: Disclosed in a communication device including a light source over a substrate and a liquid crystal element over the light source. The light source includes first to third light-emitting elements and first to third light-guide plates. The first light-emitting element is configured to emit first light. The second light-emitting element is configured to emit second light different in wavelength from the first light. The third light-emitting element is configured to emit third light different in wavelength from the first light and the second light. The first to third light-guide plates are arranged in a stripe shape and is configured so that the first light to the third light are respectively incident thereon. The liquid crystal element overlaps the first to third light-guide plates. The liquid crystal element is configured to independently control irradiation regions of the first to third lights incident through the first to third light-guide plates.