公开(公告)号：US20220128859A1

公开(公告)日：2022-04-28

申请号：US17510912

申请日：2021-10-26

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA

IPC: G02F1/1335 ,  G02F1/1333 ,  G02F1/13357

Abstract: A display system in an embodiment according to the present invention includes a display panel, a backlight located at a back surface side of the display panel and that emits light toward the display panel, a reflective panel located at a front surface side of the display panel and having a light receiving surface inclined obliquely in a direction perpendicular to an optical axis of the backlight, and a magnifying mirror disposed at a position where a reflected light from the reflective panel is received. The reflective panel includes a reflection region and a transmission region in the light receiving surface, and a position and a size of the reflection region and the transmission region are variable.

公开(公告)号：US20220102963A1

公开(公告)日：2022-03-31

申请号：US17485654

申请日：2021-09-27

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA

IPC: H02H6/00 ,  H02H1/00 ,  G01K7/16

Abstract: A temperature detection device includes: a detection part in which a first resistor element and a second resistor element having different relations between temperature variation and variation in an electric resistance value are provided; a switch provided capable of performing a switching operation so as to be coupled to one of a first circuit including wiring to which the first resistor element is coupled and a second circuit including wiring to which the second resistor element is coupled; a power supply circuit configured to apply a voltage to the one circuit coupled to the power supply circuit through the switch to generate an electric signal in the one circuit; and a controller configured to detect a temperature of the detection part based on a strength of the electric signal output from the one circuit. The controller is configured to periodically cause the switch to perform the switching operation.

公开(公告)号：US20240393643A1

公开(公告)日：2024-11-28

申请号：US18793159

申请日：2024-08-02

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA ,  Kozo IKENO

IPC: G02F1/1335 ,  G02F1/1333

Abstract: An illumination device includes a light source configured to emit light, a light adjustment device including at least one liquid crystal panel on a light outputting side of the light source and configured to adjust a light distribution range of light externally emitted from the liquid crystal panel by controlling each of transmittance of light transmitting through the liquid crystal panel and a transmission range of light transmitting through the liquid crystal panel, a temperature sensor configured to acquire information indicating a temperature of the liquid crystal panel, a heater configured to heat the liquid crystal panel, and a controller configured to operate the heater in a case where information indicating a temperature equal to or lower than a predetermined temperature is obtained by the temperature sensor.

公开(公告)号：US20240288155A1

公开(公告)日：2024-08-29

申请号：US18656142

申请日：2024-05-06

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA ,  Koichi NAGAO

IPC: F21V29/61 ,  F21V9/40 ,  F21V29/503 ,  F21V29/508 ,  F21V29/67 ,  F21Y115/10

CPC classification number: F21V29/61 ,  F21V9/40 ,  F21V29/503 ,  F21V29/508 ,  F21V29/67 ,  F21Y2115/10

Abstract: According to an aspect, an illumination device includes: a light source configured to emit light; a light distributor including a liquid crystal panel and configured to adjust a light distribution region of light externally emitted from the light source by controlling transmittance and a transmission region of light passing through the liquid crystal panel; a temperature information acquirer configured to acquire information indicating temperature of the light distributor; and a controller configured to perform predetermined operation for preventing or reducing increase in the temperature of the light distributor when the temperature of the light distributor is equal to or higher than a predetermined temperature.

公开(公告)号：US20230384597A1

公开(公告)日：2023-11-30

申请号：US18233626

申请日：2023-08-14

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA ,  Hitoshi SAITO

IPC: G02B27/01 ,  G09G3/18 ,  G09G3/36 ,  G06F3/14

CPC classification number: G02B27/0172 ,  G09G3/18 ,  G09G3/36 ,  G06F3/14 ,  G09G2320/041

Abstract: A head-up display includes: display panels, and a light guide configured to direct light from the display panels such that projection positions of images from display regions of the display panels join on the projection target. At least one of time division control and multiple display control is applied to the display panels. The time division control is operation control of the display panels such that the display panels project images at different timings. The multiple display control is operation control of the display panels in which partial regions are set in each display region such that the number of the partial regions corresponds to the number of the display panels, an image is output in one of the partial regions in the display region of each display panel such that the positions of the images projected by the display panels on the projection target differ from one another.

公开(公告)号：US20230071294A1

公开(公告)日：2023-03-09

申请号：US17986019

申请日：2022-11-14

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA

IPC: G09G3/36 ,  G02B27/01

Abstract: According to an aspect, a display device, includes: a display panel having a display region in which a plurality of pixels are provided; a plurality of temperature sensors; and a control integrated circuit (IC) configured to control operations of the display panel and the temperature sensors. A plurality of temperature detection regions in which the temperature sensors are arranged are provided to overlap the display region. The display region has a plurality of partial regions that overlap the temperature detection regions, respectively. The control IC is provided capable of controlling the display region on a partial region basis. At least either signal lines of the display panel or scan lines of the display panel, and the temperature sensors are coupled to the control IC.

公开(公告)号：US20220317520A1

公开(公告)日：2022-10-06

申请号：US17687877

申请日：2022-03-07

Applicant: Japan Display Inc.

Inventor： Masashi TAKAHATA

IPC: G02F1/13357 ,  G02F1/1333 ,  G02F1/1335 ,  A61L2/00

Abstract: A display device according to an embodiment of the present invention includes a display panel for displaying images, a lighting device provided corresponding to a first side face of the display panel, and a housing surrounding the display panel and the lighting device, the housing including a first opening provided in a front face corresponding to the display panel and a second opening in a side face. A light emitted from the lighting device enters the display panel from the first side face, a first portion of the incident light is emitted from the first opening, and a second portion of the incident light is emitted from the second opening through at least one portion of a second side face in the display panel corresponding to the first side face.