Image display device

Patent metadata

Field	Value
Publication number	US-2018260182-A1
Application number	US-201815888707-A
Country	US
Kind code	A1
Filing date	Feb 5, 2018
Priority date	Mar 10, 2017
Publication date	Sep 13, 2018
Grant date	—

Abstract

Provided is an image display device for a vehicle, in which the vehicle travels on a road and includes a first image display unit that displays a transmissive image inside the vehicle for an occupant. The image display device includes a second image display unit and a display controller. The second image display unit displays a road-surface image on a road surface of the road. The display controller stops displaying any one of the transmissive image and the road-surface image, on the condition that the transmissive image displayed by the first image display unit and the road-surface image displayed by the second image display unit appear superimposed on each other.

First claim

1 . An image display device for a vehicle, the vehicle traveling on a road and including a first image display unit configured to display a transmissive image inside the vehicle for an occupant, the image display device comprising:
a second image display unit configured to display a road-surface image on a road surface of the road; and a display controller configured to stop displaying any one of the transmissive image and the road-surface image, on a condition that the transmissive image displayed by the first image display unit and the road-surface image displayed by the second image display unit appear superimposed on each other.

2 . The image display device according to claim 1 , further comprising a determination unit configured to determine presence or absence of superimposition of the transmissive image on the road-surface image, on a basis of one or both of image information on the transmissive image and image information on the road-surface image.

3 . The image display device according to claim 2 , further comprising a derivation unit configured to derive the image information on the transmissive image and the image information on the road-surface image, the image information on the transmissive image including at least one of display area of the transmissive image, a display amount of the transmissive image, number of the transmissive images displayed, and a display position of the transmissive image, and the image information on the road-surface image including at least one of display area of the road-surface image, a display amount of the road-surface image, number of the road-surface images displayed, and a display position of the road-surface image.

4 . The image display device according to claim 2 , further comprising a comparison unit configured to compare the image information on the transmissive image with the image information on the road-surface image, wherein
the display controller configured to decide whether to stop displaying the transmissive image or the road-surface image, on a basis of a determination result of the determination unit and on a basis of a comparison result of the comparison unit.

5 . The image display device according to claim 3 , further comprising a comparison unit configured to compare the image information on the transmissive image with the image information on the road-surface image, wherein
the display controller configured to decide whether to stop displaying the transmissive image or the road-surface image, on a basis of a determination result of the determination unit and on a basis of a comparison result of the comparison unit.

6 . The image display device according to claim 2 , further comprising a line-of-sight detection unit configured to detect a line of sight of the occupant, wherein
the determination unit determines the presence or the absence of the superimposition of the transmissive image on the road-surface image, on a basis of the image information on the transmissive image and the image information on the road-surface image, and on a basis of line-of-sight information on the transmissive image and line-of-sight information on the road-surface image detected by the line-of-sight detection unit.

7 . The image display device according to claim 3 , further comprising a line-of-sight detection unit configured to detect a line of sight of the occupant, wherein
the determination unit determines the presence or the absence of the superimposition of the transmissive image on the road-surface image, on a basis of the image information on the transmissive image and the image information on the road-surface image, and on a basis of line-of-sight information on the transmissive image and line-of-sight information on the road-surface image detected by the line-of-sight detection unit.

8 . The image display device according to claim 4 , further comprising a line-of-sight detection unit configured to detect a line of sight of the occupant, wherein
the determination unit determines the presence or the absence of the superimposition of the transmissive image on the road-surface image, on a basis of the image information on the transmissive image and the image information on the road-surface image, and on a basis of line-of-sight information on the transmissive image and line-of-sight information on the road-surface image detected by the line-of-sight detection unit.

9 . The image display device according to claim 5 , further comprising a line-of-sight detection unit configured to detect a line of sight of the occupant, wherein
the determination unit determines the presence or the absence of the superimposition of the transmissive image on the road-surface image, on a basis of the image information on the transmissive image and the image information on the road-surface image, and on a basis of line-of-sight information on the transmissive image and line-of-sight information on the road-surface image detected by the line-of-sight detection unit.

10 . The image display device according to claim 1 , further comprising an evaluation unit configured to evaluate a safety level on a basis of surrounding environment of the vehicle, wherein
the display controller stops displaying any one of the transmissive image and the road-surface image, on a condition that the safety level is lower than a threshold.

11 . The image display device according to claim 2 , further comprising an evaluation unit configured to evaluate a safety level on a basis of surrounding environment of the vehicle, wherein
the display controller stops displaying any one of the transmissive image and the road-surface image, on a condition that the safety level is lower than a threshold.

12 . The image display device according to claim 3 , further comprising an evaluation unit configured to evaluate a safety level on a basis of surrounding environment of the vehicle, wherein
the display controller stops displaying any one of the transmissive image and the road-surface image, on a condition that the safety level is lower than a threshold.

13 . The image display device according to claim 4 , further comprising an evaluation unit configured to evaluate a safety level on a basis of surrounding environment of the vehicle, wherein
the display controller stops displaying any one of the transmissive image and the road-surface image, on a condition that the safety level is lower than a threshold.

14 . The image display device according to claim 5 , further comprising an evaluation unit configured to evaluate a safety level on a basis of surrounding environment of the vehicle, wherein
the display controller stops displaying any one of the transmissive image and the road-surface image, on a condition that the safety level is lower than a threshold.

15 . The image display device according to claim 1 , wherein
the vehicle includes headlights, and the second image display unit includes the headlights.

16 . The image display device according to claim 2 , wherein
the vehicle includes headlights, and the second image display unit includes the headlights.

17 . The image display device according to claim 3 , wherein
the vehicle includes headlights, and the second image display unit includes the headlights.

18 . The image display device according to claim 4 , wherein
the vehicle includes headlights, and the second image display unit includes the headlights.

19 . The image display device according to claim 5 , wherein
the vehicle includes headlights, and the second image display unit includes the headl

Assignees

• Subaru Corp

Inventors

• Suzuki Dan
• Kinoshita Makoto
• Yamazumi Toru
• Yamasaki Kentarou

Classifications

• G09G5/40

  characterised by the way in which both a pattern determined by character code and another pattern are displayed simultaneously, or either pattern is displayed selectively, e.g. with character code memory and APA, i.e. all-points-addressable, memory · CPC title

• G09G2380/10

  Automotive applications · CPC title

• G09G5/36

  characterised by the display of a graphic pattern, e.g. using an all-points-addressable [APA] memory · CPC title

• G09G3/001

  using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background (slide projectors per se G03B23/00 = 42 HP) · CPC title

• G09G2360/04

  Display device controller operating with a plurality of display units · CPC title