Image output apparatus, control method therefor, image display apparatus, control method therefor, and storage medium

An image display apparatus capable of controlling an amount of light of a backlight, the image display apparatus including a processor programmed to function as a device that comprises:

• an acquiring unit configured to acquire information on first image data input to the image display apparatus and second image data input to another image display apparatus;
• a determining unit configured to determine, on the basis of the information acquired by the acquiring unit, whether the first image data and the second image data satisfy a predetermined condition;
• and
• a controlling unit configured:
• to control, in a case where the determining unit determines that the first image data and the second image data satisfy the predetermined condition, the image display apparatus and the other image display apparatus such that the image display apparatus and the other image display apparatus are the same in amount of light emission control of the backlight used for display of the first image data and the second image data by the image display apparatus and the other image display apparatus even if the first image data and the second image data are different from each other;
• and
• to control, in a case where the determining unit determines that the first image data and the second image data do not satisfy the predetermined condition, the image display apparatus and the other image display apparatus such that the respective amounts of light of the backlights thereof used for display of the first image data and the second image data by the image display apparatus and the other image display apparatus are adjusted based on respective signal levels of the first image data and the second image data.

A control method for an image output apparatus that outputs first image data to a first image display apparatus and second image data to a second image display apparatus, respectively, each of the first image display apparatus and the second image display apparatus being capable of controlling amount of light of a backlight thereof, the control method comprising the following steps executed by a processor:

• a step of determining whether the first image data and the second image data satisfy a predetermined condition;
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data satisfy the predetermined condition, the first image display apparatus and the second image display apparatus such that the first image display apparatus and the second image display apparatus are the same in amount of light emission control of the backlight used for display of the first image data and the second image data by the first image display apparatus and the second image display apparatus even if the first image data and the second image data are different from each other;
• and
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data do not satisfy the predetermined condition, the first image display apparatus and the second image display apparatus such that the respective amounts of light of the backlights thereof used for display of the first image data and the second image data by the first image display apparatus and the second image display apparatus are adjusted based on respective signal levels of the first image data and the second image data.

A control method for an image display apparatus capable of controlling an amount of light of a backlight, the control method comprising the following steps executed by a processor:

• a step of acquiring information on first image data input to the image display apparatus and second image data input to another image display apparatus;
• a step of determining, on the basis of the information acquired in the acquiring step, whether the first image data and the second image data satisfy a predetermined condition;
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data satisfy the predetermined condition, the image display apparatus and the other image display apparatus such that the image display apparatus and the other image display apparatus are the same in amount of light of light emission control of the backlight used for display of the first image data and the second image data by the image display apparatus and the other image display apparatus even if the first image data and the second image data are different from each other;
• and
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data do not satisfy the predetermined condition, the image display apparatus and the other image display apparatus such that the respective amounts of light of the backlights thereof used for display of the first image data and the second image data by the image display apparatus and the other image display apparatus are adjusted based on respective signal levels of the first image data and the second image data.

A non-transitory computer-readable storage medium having stored therein a computer program for causing a computer to execute the steps of the control method for an image output apparatus that outputs first image data to a first image display apparatus and second image data to a second image display apparatus, each of the first image display apparatus and the second image display apparatus being capable of controlling amount of light of a backlight thereof, the control method comprising the following steps executed by the computer of the image output apparatus:

• a step of determining whether the first image data and the second image data satisfy a predetermined condition;
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data satisfy the predetermined condition, the first image display apparatus and the second image display apparatus such that the first image display apparatus and the second image display apparatus are the same in amount of light emission control of the backlight used for display of the first image data and the second image data by the first image display apparatus and the second image display apparatus even if the first image data and the second image data are different from each other;
• and
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data do not satisfy the predetermined condition, the first image display apparatus and the second image display apparatus such that the respective amounts of light of the backlights thereof used for display of the first image data and the second image data by the first image display apparatus and the second image display apparatus are adjusted based on respective signal levels of the first image data and the second image data.

A non-transitory computer-readable storage medium having stored therein a computer program for causing a computer to execute the steps of the control method for an image display apparatus capable of controlling an amount of light of a backlight, the control method comprising the following steps executed by the computer of the image display apparatus:

• a step of acquiring information on first image data input to the image display apparatus and second image data input to another image display apparatus;
• a step of determining, on the basis of the information acquired in the acquiring step, whether the first image data and the second image data satisfy a predetermined condition;
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data satisfy the predetermined condition, the image display apparatus and the other image display apparatus such that the image display apparatus and the other image display apparatus are the same in amount of light emission control of the backlight used for display of the first image data and the second image data by the image display apparatus and the other image display apparatus even if the first image data and the second image data are different from each other;
• and
• a step of controlling, in a case where it is determined in the determining step that the first image data and the second image data do not satisfy the predetermined condition, the image display apparatus and the other image display apparatus such that the respective amounts of light of the backlights thereof used for display of the first image data and the second image data by the image display apparatus and the other image display apparatus are adjusted based on respective signal levels of the first image data and the second image data.