公开(公告)号：US20220276519A1

公开(公告)日：2022-09-01

申请号：US17748504

申请日：2022-05-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01 ,  G03B21/16

Abstract: Provided is a head-up display including a liquid-crystal panel including a display screen, a Fresnel lens which is on an opposite side of the liquid-crystal panel from the display screen, a light-diffusion structure between the liquid-crystal panel and the Fresnel lens, a backlight that emits light toward the light-transmissive member, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space, where the light-diffusion structure includes a plurality of fine particles and an average particle size of the plurality of fine particles is equal to or smaller than 20 um.

公开(公告)号：US20220276518A1

公开(公告)日：2022-09-01

申请号：US17748213

申请日：2022-05-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01 ,  G03B21/16

Abstract: Provided is a head-up display including a liquid-crystal panel including a display screen, a Fresnel lens which is on an opposite side of the liquid-crystal panel from the display screen, a light-diffusion member between the liquid-crystal panel and the heat-transfer member, a backlight that emits light toward the heat-transfer member, a heat sink disposed along at least one side of the Fresnel lens and one side of backlight, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space, where a light-diffusion structure is provided to a surface of the light-diffusion member facing the liquid-crystal panel.

公开(公告)号：US20220252919A1

公开(公告)日：2022-08-11

申请号：US17733482

申请日：2022-04-29

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02B27/01 ,  G02F1/1333 ,  G03B21/16

Abstract: Provided is a head-up display including a liquid-crystal panel including a display screen provided at a front surface thereof, a Fresnel lens opposite the liquid-crystal panel from the display screen, a light-diffusion structure between the liquid-crystal panel and the Fresnel lens, a backlight that emits light toward the Fresnel lens, a body part accommodating the Fresnel lens, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space. The body part has a step-shaped structure including a first step surface and a second step surface, the first step surface and the second step surface are oriented in the same direction as the front surface of the liquid-crystal panel, the first step surface is located on the liquid-crystal panel side from the second step surface, and the liquid-crystal panel is supported on the second step surface.

公开(公告)号：US20230418120A1

公开(公告)日：2023-12-28

申请号：US18243162

申请日：2023-09-07

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01 ,  G03B21/16

CPC classification number: G02F1/1347 ,  G02F1/133382 ,  G02B27/0101 ,  G03B21/16 ,  B60K2370/785 ,  B60K2370/334

Abstract: Provided is a head-up display including a backlight configured to emit light, a light-diffusion member through which the light emitted by the backlight is transmitted, a Fresnel lens through which the light transmitted through the light-diffusion member is transmitted, a display screen through which the light transmitted through the Fresnel lens is transmitted, and a mirror that reflects the light transmitted through the light-diffusion member toward a target space.

公开(公告)号：US20230067951A1

公开(公告)日：2023-03-02

申请号：US17410664

申请日：2021-08-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Takahiro AKIYOSHI ,  Tomoaki MIYAMOTO

IPC: G02B27/01 ,  B60K37/02

Abstract: A display system includes a display and a shielding member. The display has a display screen to display an image thereon. The shielding member has an opening, through which light emerging from the display screen passes. The shielding member defines a shape of the light emerging from the display screen. The display screen has a non-rectangular display area to display the image thereon. At least one peripheral edge of the opening defines a shape that conforms to an outer peripheral shape of the display area.

公开(公告)号：US20220283456A1

公开(公告)日：2022-09-08

申请号：US17748497

申请日：2022-05-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01 ,  G03B21/16

Abstract: A head-up display includes a liquid-crystal panel including a display screen provided at a front surface thereof, a Fresnel lens which is on an opposite side of the liquid-crystal panel from the display screen, a light-diffusion structure between the liquid-crystal panel and the Fresnel lens, a backlight that emits light toward the Fresnel lens, a light-transmissive member between the backlight and the Fresnel lens, a body part accommodating the Fresnel lens, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space. The body part has a step-shaped structure including a first step surface and a second step surface, the first and second step surfaces are oriented in the same direction as the front surface of the liquid-crystal panel. The first step surface is located on the liquid-crystal panel side from the second step surface.

公开(公告)号：US20220276521A1

公开(公告)日：2022-09-01

申请号：US17748571

申请日：2022-05-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01 ,  G03B21/16

Abstract: Provided is a head-up display including a liquid-crystal panel including a display screen, a Fresnel lens which is on an opposite side of the liquid-crystal panel from the display screen, a light-diffusion structure between the liquid-crystal panel and the Fresnel lens, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space, where the light-diffusion structure is thinner than the Fresnel lens, and the light-diffusion structure has a thickness equal to or smaller than 300 μm.

公开(公告)号：US20220276517A1

公开(公告)日：2022-09-01

申请号：US17748151

申请日：2022-05-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01 ,  G03B21/16

Abstract: Provided is a head-up display including a liquid-crystal panel including a display screen, a Fresnel lens which is on an opposite side of the liquid-crystal panel from the display screen, a light-diffusion structure between the liquid-crystal panel and the Fresnel lens, a backlight that emits light toward the Fresnel lens, a light-transmissive member between the backlight and the Fresnel lens, a body part accommodating the light-transmissive member, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space, where a surface of the Fresnel lens facing the backlight is uneven.

公开(公告)号：US20220276516A1

公开(公告)日：2022-09-01

申请号：US17748143

申请日：2022-05-19

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01 ,  G03B21/16

Abstract: Provided is a head-up display including a liquid-crystal panel including a display screen, a Fresnel lens which is on an opposite side of the liquid-crystal panel from the display screen, a light-diffusion structure between the liquid-crystal panel and the Fresnel lens, a backlight that emits light toward the Fresnel lens, a light-transmissive member between the backlight and the Fresnel lens, and a mirror that forms a virtual image corresponding to an image displayed on the display screen of the liquid-crystal panel, in a target space, where a length of the liquid-crystal panel in a longitudinal direction of the head-up display is longer than a length of the light-transmissive member in the longitudinal direction.

公开(公告)号：US20200004067A1

公开(公告)日：2020-01-02

申请号：US16454218

申请日：2019-06-27

Applicant: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.

Inventor： Takato HADA ,  Takahiro AKIYOSHI ,  Hiroki HARA ,  Keiji SUGIYAMA

IPC: G02F1/1347 ,  G02F1/1333 ,  G02B27/01

Abstract: The display includes a liquid-crystal panel, a heat-transfer member, and a light-diffusion structure. The liquid-crystal panel includes a display screen. The heat-transfer member is light-transmissive. The heat-transfer member is on an opposite side of the liquid-crystal panel from the display screen. The light-diffusion structure is between the liquid-crystal panel and the heat-transfer member.