IP Library Granted Patent US 11,803,347
Granted Patent B2
US 11,803,347 · App. 17/466,572 · Granted Oct 31, 2023

Image display system and image display method

Inventors: Yoshito Tanaka (Kyoto, JP); Takashi Yamada (Osaka, JP); Daizaburo Matsuki (Osaka, JP); Yoshinori Okazaki (Osaka, JP)
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
G06F3/1446G09G3/001G09G2300/026G09G2320/028G09G2320/0261G09G2320/066G09G2320/0626G09G2320/0666G09G2360/144
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,803,347
App. No.
17/466,572
Granted
Oct 31, 2023
Kind
B2
Abstract

An image display system causes a plurality of image display devices having different device characteristics to respectively display images. The image display system includes an external light detection device that detects external light and an image adjustment device that performs adjustment to make at least one of contrast, chromaticity, and luminance continuous between the images displayed on the plurality of image display devices, the adjustment being performed based on the device characteristics and the detected external light.

Claims (36)

1. An image display system that causes a plurality of image display devices having different device characteristics to respectively display images, the image display system comprising:

an external light detection device that detects external light; and

an image adjustment device that performs adjustment to make at least one of contrast, chromaticity, and luminance continuous between the images displayed on the plurality of image display devices, the adjustment being performed based on the different device characteristics and the detected external light, wherein

the plurality of image display devices include a first image display device and a second image display device,

the first image display device displays an image having a contrast lower than a contrast of an image displayed on the second image display device when illuminance of the external light is higher than a predetermined value, and displays an image having a contrast higher than a contrast of the image displayed on the second image display device when illuminance of the external light is lower than the predetermined value, and

the image adjustment device sets a contrast set value of one of the first image display device and the second image display device which displays an image having a higher contrast than another of the first image display device and the second image display device to a value lower than a predetermined contrast value.

2. The image display system according to claim 1 , wherein the image adjustment device performs the adjustment by changing a set value related to the at least one of contrast, chromaticity, and luminance of the plurality of image display devices.

3. The image display system according to claim 1 , wherein the image adjustment device performs the adjustment by converting the images displayed on the plurality of image display devices while changing the at least one of contrast, chromaticity, and luminance of the images.

4. The image display system according to claim 1 , wherein the first image display device is a projection image display device and the second image display device is a light-emitting image display device.

5. The image display system according to claim 1 , wherein the image adjustment device divides one input image and outputs a plurality of divided images to the plurality of image display devices.

6. An image display system that causes a plurality of image display devices to respectively display images, the image display system comprising:

an external light detection device that detects external light; and

an image adjustment device that, in a case in which a predetermined original image is divided into a plurality of images and the plurality of divided images are respectively displayed on the plurality of image display devices, displays the plurality of divided images to form one continuous original image when viewed from a viewpoint position of a user, wherein

the plurality of image display devices include a first image display device and a second image display device,

the first image display device displays an image having a contrast lower than a contrast of an image displayed on the second image display device when illuminance of the external light is higher than a predetermined value, and displays an image having a contrast higher than a contrast of the image displayed on the second image display device when illuminance of the external light is lower than the predetermined value, and

the image adjustment device sets a contrast set value of one of the first image display device and the second image display device which displays an image having a higher contrast than another of the first image display device and the second image display device to a value lower than a predetermined contrast value.

7. The image display system according to claim 6 , wherein the viewpoint position of the user is a predetermined viewpoint position.

8. The image display system according to claim 6 , further comprising a viewpoint sensor that detects the viewpoint position of the user, wherein the image adjustment device adjusts image signals of the plurality of images to display the one original image in which the plurality of divided images are continuous with each other when the user views from the viewpoint position based on the detected viewpoint position.

9. The image display system according to claim 6 , wherein

the first image display device is a projection image display device.

10. The image display system according to claim 9 , wherein the second image display device is a light-emitting image display device.

11. The image display system according to claim 9 , wherein one of the first and second image display devices is located closer to the user than another is.

12. The image display system according to claim 9 , wherein the first image display device has transparency.

13. An image display method of causing a plurality of image display devices having different device characteristics to respectively display images, the image display method comprising:

detecting external light; and

performing adjustment to make at least one of contrast, chromaticity, and luminance continuous between the images displayed on the plurality of image display devices, the adjustment being performed based on the different device characteristics and the detected external light, wherein

the plurality of image display devices include a first image display device and a second image display device,

the first image display device displays an image having a contrast lower than a contrast of an image displayed on the second image display device when illuminance of the external light is higher than a predetermined value, and displays an image having a contrast higher than a contrast of the image displayed on the second image display device when illuminance of the external light is lower than the predetermined value, and

said performing adjustment comprises setting a contrast set value of one of the first image display device and the second image display device which displays an image having a higher contrast than another of the first image display device and the second image display device to a value lower than a predetermined contrast value.

14. An image display method of causing a plurality of image display devices to respectively display images, the image display method comprising:

detecting external light;

dividing a predetermined original image into a plurality of images; and

when respectively displaying the plurality of divided images on the plurality of image display devices, displaying the plurality of divided images to form one continuous original image when viewed from a viewpoint position of a user, wherein

the plurality of image display devices include a first image display device and a second image display device,

the first image display device displays an image having a contrast lower than a contrast of an image displayed on the second image display device when illuminance of the external light is higher than a predetermined value, and displays an image having a contrast higher than a contrast of the image displayed on the second image display device when illuminance of the external light is lower than the predetermined value, and

when respectively displaying the plurality of divided images on the plurality of image display devices, a contrast set value of one of the first image display device and the second image display device which displays an image having a higher contrast than another of the first image display device and the second image display device is set to a value lower than a predetermined contrast value.

Assignments (3)
NUNC PRO TUNC ASSIGNMENT Recorded Feb 24, 2026
From: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
To: PANASONIC PROJECTOR & DISPLAY CORPORATION
Reel/Frame 074988/0945 →
CHANGE OF ADDRESS Recorded Feb 24, 2026
From: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 074984/0429 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 11, 2022
From: TANAKA, YOSHITO; YAMADA, TAKASHI; MATSUKI, DAIZABURO; OKAZAKI, YOSHINORI
To: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Reel/Frame 058624/0578 →
Priority Claims (1)
JP 2019-038338 · Mar 4, 2019 · national
Continuity (2)
Continuation PCTJP2020007296 · Feb 25, 2020
Related Publication 20210397400A1 · Dec 23, 2021