Image display device

• US 6,392,695 B1
• Filed: 04/17/1998
• Issued: 05/21/2002
• Est. Priority Date: 04/17/1997
• Status: Expired due to Fees

• Current Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Matsushita Electric Industrial Company Limited (Panasonic Holdings Corporation)
• Inventors: Watamoto, Toru, Nagata, Koichiro
• Primary Examiner(s): Faile, Andrew I.
• Assistant Examiner(s): Bahgi, Habte
• Application Number:
  US09/062,290
• Time in Patent Office: 1,495 Days
• Field of Search: 348/173, 348/377, 348/378, 348/379, 348/380, 348/553, 348/730, 348/632, 348/633, 348/634, 348/635, 386/125, 386/126, 386/1, 386/45, 386/46, 386/39, 386/21, 386/96, 386/98, 386/99, 386/106, 386/113, 345/211
• US Class Current: 348/173
• CPC Class Codes: H04N 3/20 Prevention of damage to cathode-ray tubes in the event of failure of scanning
• CPC Class Codes: H04N 5/445 for displaying additional information H04N5/50 takes precedence
• CPC Class Codes: H04N 5/63 Generation or supply of power specially adapted for television receivers
• CPC Class Codes: H04N 5/765 Interface circuits between an apparatus for recording and another apparatus

Abstract

An image display device having (a) a DVD or a CD, (b) a television receiver, (c) a display for displaying an image from the DVD and the television receiver, (d) a screen burn-in preventer, and (e) a deterioration protector for protecting the display device from deterioration. The screen burn-in preventer discontinues reproduction from the DVD when an image reproduced of the DVD becomes stationary, and the stationary state continues for the predetermined time period. The deterioration protector discontinues reproduction from the DVD at a second predetermined time after the television receiver is turned on while an image reproduced from the DVD is displayed by the display.

Claims

1. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound wherein said image and sound reproducing means includes,

first image and sound reproducing means for reproducing one of a first image and a first sound;

second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for,

preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means;

preventing burn-in of a screen of said display means, when a stationary image is displayed on the screen of said display means for at least a first predetermined time;

deactivating said first image and sound reproducing means at a second predetermined time after said second image and sound reproducing device is activated while said first image is displayed by said display means;

wherein said first image and sound reproducing means reproduces only said first sound;

said deterioration prevention means having an image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a third predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

2. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means including first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first image or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means, said deterioration prevention means including a protective means for protecting said image and sound reproducing means from deterioration;

a warning display means which displays a warning on said display means at a first predetermined time before reproduction from said image and sound is reproducing means is discontinued;

wherein said protective means discontinues reproduction of said first image and sound reproducing means at said first predetermined time after said warning is displayed;

wherein said first image and sound reproducing means reproduces only said first sound;

said deterioration prevention means having an image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

3. An image display comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means including first image and sound reproducing means for reproducing one of a first image and a first sound; and

second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means, said deterioration preventing means including a protective means for protecting said image and sound reproducing means from deterioration;

wherein said protective means deactivates said first image and sound reproducing means when reproduction of said first image and sound reproducing means is paused for at least a first predetermined time;

wherein said first image and sound reproducing means reproduces only said first sound;

said deterioration prevention means having an image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

4. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, wherein said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means said deterioration prevention means including a protective means for protecting said image and sound reproducing means from deterioration;

wherein said protective means deactivates said first image and sound reproducing means when said first image and sound reproducing means is in a reproducing mode, and is maintained in a waiting state for further reproduction for at least a first predetermined time;

wherein said first image and sound reproducing means reproduces only said first sound;

said deterioration prevention means having an image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

5. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means, said deterioration preventing means including a protective means for protecting said image and sound reproducing means from deterioration;

warning display means;

wherein said warning displaying means displays a warning on said display means at a first predetermined time before said first image and second reproducing means is deactivated;

said protective means deactivates said first image and sound reproducing means at said first predetermined time after said warning is displayed;

wherein said first image and sound reproducing means reproduces only said first sound;

said deterioration prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image and;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

6. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means said deterioration preventing means including a protective means for protecting said image and sound reproducing means from deterioration;

wherein said protective means activates said first image and sound reproducing means based on at least one of,

(1) the reception of a first input signal for activating a power switch of said first image and sound reproducing means;

(2) the reception of a second input signal for operating a media interface of said first image and sound reproducing means,

when said first image and sound reproducing means is in a deactivated state;

wherein said first image and sound reproducing means reproduces only said first sound;

said deterioration prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

7. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound; and

second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means;

said display means includes an on-screen display means,

wherein said first image and sound reproducing means reproduces only said first sound;

said on-screen display means displays an image on said display means that indicates ongoing reproduction of said first sound when said first sound is reproduced;

said deterioration prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a first predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

8. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first image or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means said deterioration prevention means including a screen burn-in prevention means to prevent burn-in of a screen of said display means, when a stationary image is displayed on the screen of said display means for at least a first predetermined time,

said display means including an on-screen display means,

wherein said first image and sound reproducing means reproduces said first sound;

said on-screen display means i) displays a warning that indicates ongoing reproduction of said first sound when said first sound is reproduced, and ii) changes a position of said warning at a periodic time interval;

wherein said first image and sound reproducing means reproduces only said first sound;

said screen burn-in preventing means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

9. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second source;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means wherein said deterioration prevention means includes a screen burn-in preventing means to prevent burn-in of a screen of said display means, when a stationary image is displayed on the screen of said display means for at least a first predetermined time;

wherein said first image and sound reproducing means reproduces only said first sound;

said screen burn-in prevention means including an image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

10. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound;

said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound; and

second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means;

wherein said deterioratoin prevention means includes a screen burn-in prevention means to prevent burn-in of a screen of said display means, when a stationary image displayed corresponding to said image is displayed on the screen of said display means for at least a first predetermined time;

wherein said first image and sound reproducing means reproduces only said first sound;

said screen burn-in preventing means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

wherein said image adjusting means reduces the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time.

11. An image display means comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means wherein said deterioration prevention means includes a screen burn-in prevention means to prevent burn-in of a screen of said display means, when a stationary image is displayed on the screen of said display means for at least a predetermined time;

wherein said first image and sound reproducing means reproduces only said first sound;

said screen burn-in prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

wherein said image adjusting means returns said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

12. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means;

wherein said first image and sound reproducing means is a digital versatile disk (DVD) player;

said second image and sound reproducing means is a television receiver;

said screen burn-in prevention means provides at least one of a function to,

(1) discontinues reproduction of said first image and sound reproducing means;

(2) deactivate said first image and sound reproducing means,

when said first image remains unchanged for at least a first predetermined time;

wherein said first image and sound reproducing means reproduces only said first sound;

said screen burn-in prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a second predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

13. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, wherein said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means;

wherein said first image and sound reproducing means is a digital versatile disk (DVD) player;

said second image and sound reproducing means is a television receiver;

said protective means provides at least one of a function to,

(1) discontinues reproduction of said first image and sound reproducing means;

(2) deactivate said first image and sound reproducing means at a second predetermined time after said second image and sound reproducing device is activated while said first image is displayed by said display means;

wherein said first image and sound reproducing means reproduces only said first sound;

said screen burn-in prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a third predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

14. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound,

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means;

wherein said first image and sound reproducing means is a compact disk (CD) player;

said first image and sound reproducing means reproduces only said first sound;

said display means is further provided with an on-screen display means; and

said on-screen display means i) displays a warning on said display means indicating ongoing reproduction of said first sound when said first sound is reproduced, and ii) changes a position of said warning at a periodic time interval;

said screen burn-in prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function,

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a first predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.

15. An image display device comprising:

image and sound reproducing means for reproducing at least one of an image and sound, said image and sound reproducing means includes first image and sound reproducing means for reproducing one of a first image and a first sound and second image and sound reproducing means for reproducing a second image and a second sound;

display means for displaying a selected one of said first or second image;

deterioration prevention means for preventing deterioration of said image and sound reproducing means by selectively providing power to said image and sound reproducing means based on a signal source of said display means,

said first image and sound reproducing means is a digital versatile disk (DVD) player;

said second image and sound reproducing means is a television receiver;

said screen burn prevention means provides at least one of a function to,

(1) discontinues reproduction of said first image and sound reproducing means;

(2) deactivate said first image and sound reproducing means,

when said first image remains unchanged for at least a first predetermined time;

said protective means provides at least one of a function to,

(1) discontinues reproduction of said first image and sound reproducing means;

(2) deactivate said first image and sound reproducing means;

at a second predetermined time after said second image and sound reproducing means is activated while said first image is displayed by said display means;

wherein said first image and sound reproducing means reproduces only said first sound;

said screen burn-in prevention means is provided with image adjusting means for adjusting a condition of an image on the screen;

said image adjusting means controls an image adjustment value for said second image;

said image adjusting means provides at least one of a function;

to reduce the image adjustment value for said second image when said first sound is reproduced for at least a third predetermined time, and

to return said image adjustment value to an original value when i) said first sound is continuously reproduced, and ii) said image adjustment value for said second image is concurrently in a reduced state.