# US 10,311,718 B2 · Image display device for displaying images on a road surface

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 10,311,718 B2
- Document ID: US10311718B2
- Status: Granted
- Kind: B2
- Application number: 15/877,901
- Filed: 2018-01-23
- Published: 2018-09-13
- Granted: 2019-06-04
- Earliest claimed: 2017-03-10
- Assignees: Subaru Corporation
- Applicants: Subaru Corporation
- Inventors: Dan Suzuki; Makoto Kinoshita; Toru Yamazumi; Kentarou Yamasaki
- Web page: https://patentgrep.com/patent/US10311718B2

## CPC

- G08G 1/005: including pedestrian guidance indicator
- B60Q 1/525: {automatically indicating risk of collision between vehicles in traffic or with pedestrians, e.g. after risk assessment using the vehicle sensor data}
- B60Q 1/545: {for indicating other traffic conditions, e.g. fog, heavy traffic}
- B60Q 1/547: {for issuing requests to other traffic participants; for confirming to other traffic participants they can proceed, e.g. they can overtake}
- B60Q 9/008: {for anti-collision purposes}
- G08G 1/162: {event-triggered}
- B60Q 2300/45: Special conditions, e.g. pedestrians, road signs or potential dangers
- B60Q 2400/50: Projected symbol or information, e.g. onto the road or car body
- G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93})
- B60Q: ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL

## Abstract

An image display device includes an illuminator and a communicator. The illuminator is configured to send out light on a road surface around a first vehicle as an own vehicle, to display a first notification image on the road surface. The first notification image notifies information to surroundings of the first vehicle. The communicator is configured to perform inter-vehicle communication with a second vehicle other than the first vehicle. The illuminator is configured to display the first notification image on the basis of the inter-vehicle communication performed by the communicator.

## Claims

### Claim 1

An image display device mounted on an own vehicle traveling on a road, the image display device comprising:
a controller that:
detects, using a detector, a notification target around the own vehicle traveling on the road;
determines a state of the notification target;
generates, based on the state of the notification target, a first notification to be displayed, by an illuminator of the own vehicle, for the notification target, wherein when the state of the notification target indicates a first state of the notification target, a first type of the first notification is generated, wherein when the state of the notification target indicates a second state of the notification target, a second type of the first notification is generated;
receives, from a surrounding vehicle via an inter-vehicle communicator, information associated with a second notification to be displayed by an illuminator of the surrounding vehicle for the notification target, wherein the surrounding vehicle is traveling on the road;
determines a display order of the first notification and the second notification based on a priority level of the first notification and a priority level of the second notification; and
displays, on a road surface of the road using the illuminator of the own vehicle, the first notification based on the determined display order.

### Claim 2 (depends on 1)

The image display device according to claim 1, wherein when the priority level of the first notification is higher than the priority level of the second notification, the controller displays the first notification using the illuminator of the own vehicle before the second notification is displayed using an illuminator of the surrounding vehicle.

### Claim 3 (depends on 1)

The image display device according to claim 1, wherein when the priority level of the first notification is lower than the priority level of the second notification, the controller defers displaying the first notification using the illuminator of the own vehicle while the second notification is being displayed using an illuminator of the surrounding vehicle.

### Claim 4 (depends on 1)

The image display device according to claim 1, wherein when 1) the priority level of the first notification and the priority level of the second notification are the same and 2) a content of the first notification is different from a content of the second notification, the first notification is displayed on the road surface using the illuminator of the own vehicle while the second notification is being displayed on the road surface using an illuminator of the surrounding vehicle.

### Claim 5 (depends on 4)

The image display device according to claim 4, wherein
the first notification is displayed on a first area of the road surface using the illuminator of the own vehicle, and the second notification is displayed on a second area of the road surface using the illuminator of the surrounding vehicle, and
the first area is different from the second area of the road surface.

### Claim 6 (depends on 1)

The image display device according to claim 1, wherein when 1) the priority level of the first notification and the priority level of the second notification are the same and 2) a content of the first notification is identical to a content of the second notification, the first notification is displayed on the road surface using the illuminator of the own vehicle while the second notification is being displayed on the road surface using an illuminator of the surrounding vehicle.

### Claim 7 (depends on 6)

The image display device according to claim 6, wherein the first notification is displayed on a first area of the road surface using the illuminator of the own vehicle while the second notification is being displayed on the first area of the road surface using an illuminator of the surrounding vehicle.

### Claim 8 (depends on 6)

The image display device according to claim 6, wherein either 1) the first notification is displayed on a first area of the road surface using the illuminator of the own vehicle or 2) the second notification is being displayed on a second area of the road surface using an illuminator of the surrounding vehicle.

### Claim 9 (depends on 1)

The image display device according to claim 1, wherein the state of the notification target is determined based on a position of the notification target relative to the road, a direction to which the notification target is facing, a direction in which the notification target is traveling, or a behavior of the notification target.

### Claim 10 (depends on 1)

The image display device according to claim 1, wherein the illuminator includes headlights of the own vehicle.

### Claim 11 (depends on 1)

The image display device according to claim 1, wherein the controller determines the priority of the first notification and the priority of the second notification according to a look-up table.

### Claim 12 (depends on 1)

The image display device according to claim 1, wherein the information associated with the second notification received from the surrounding vehicle includes the priority of the second notification.

### Claim 13 (depends on 9)

The image display device according to claim 9, wherein the state of the notification is further determined based on a road environment surrounding the notification target, and
wherein the road environment includes at least one of a road width of the road, a number of lanes on the road, a road marking on the road, a road sign on the road, and traffic lights on the road.

### Claim 14

An image display device mounted on an own vehicle traveling on a road, the image display device comprising:
a controller that:
detects, using a detector, a notification target around the own vehicle traveling on the road;
determines a state of the notification target based on a direction to which the notification target is facing;
generates, based on the state of the notification target, a first notification to be displayed, by an illuminator of the own vehicle, for the notification target;
receives, from a surrounding vehicle via an inter-vehicle communicator, information associated with a second notification to be displayed by an illuminator of the surrounding vehicle for the notification target, wherein the surrounding vehicle is traveling on the road;
determines a display order of the first notification and the second notification based on a priority level of the first notification and a priority level of the second notification; and
displays, on a road surface of the road using the illuminator of the own vehicle, the first notification based on the determined display order.

### Claim 15

An image display device mounted on an own vehicle traveling on a road, the image display device comprising:
a controller that:
detects, using a detector, a notification target around the own vehicle traveling on the road;
determines a state of the notification target based on 1) a road environment surrounding the notification target including at least one of a road width of the road, a number of lanes on the road, a road marking on the road, a road sign on the road, and traffic lights on the road, and 2) at least one of a position of the notification target relative to the road, a direction to which the notification target is facing, a direction in which the notification target is traveling, and a behavior of the notification target;
generates, based on the state of the notification target, a first notification to be displayed, by an illuminator of the own vehicle, for the notification target;
receives, from a surrounding vehicle via an inter-vehicle communicator, information associated with a second notification to be displayed by an illuminator of the surrounding vehicle for the notification target, wherein the surrounding vehicle is traveling on the road;
determines a display order of the first notification and the second notification based on a priority level of the first notification and a priority level of the second notification; and
displays, on a road surface of the road using the illuminator of the own vehicle, the first notification based on the determined display order.