Backlight apparatus, control method for controlling the same, and image display apparatus

A control method for controlling a backlight apparatus having a plurality of light source blocks, the control method comprising:

• a luminance detecting step of detecting a luminance of the light source blocks;
• a control step of successively executing a detecting process for each of the plurality of light source blocks by controlling the plurality of light source blocks to turn on one by one and determining a correction amount of each light source block on the basis of a luminance value detected in the luminance detecting step and a target value thereof;
• and
• a temperature fluctuation suppressing step of executing a temperature fluctuation suppressing process after the detecting process for a light source block as a detecting objective was executed in the control step, and before the detecting process is executed in the control step for another light source block as next detecting objective during the entire process of executing detecting processes for all of the light source blocks of the backlight apparatus,
• wherein, in the temperature fluctuation suppressing process, at least one of the plurality of light source blocks is controlled to turn on for a predetermined period so that the light source block as the next detecting objective is heated, the at least one of the plurality of light source blocks including the light source block as the next detecting objective.

A backlight apparatus having a plurality of light source blocks, the backlight apparatus comprising:

• a luminance detecting unit which successively executes a detecting process for detecting a luminance of each of the plurality of light source blocks by controlling the plurality of light source blocks to turn on one by one;
• and
• a control unit which executes a temperature controlling process after the luminance detecting unit executed the detecting process for a light source block as a detecting objective, and before the luminance detecting unit executes the detecting process for another light source block as next detecting objective during the entire process of executing detecting processes for all of the light source blocks of the backlight apparatus,
• wherein, in the temperature controlling process, the control unit controls at least one of the plurality of light source blocks which include the light source block as the next detecting objective to turn on so that the light source block as the next detecting objective is heated.

A control method for controlling a backlight apparatus having a plurality of light source blocks, the control method comprising:

• a luminance detecting step of executing a detecting process for detecting a luminance of each of the plurality of light source blocks by controlling the plurality of light source blocks to turn on one by one;
• and
• a control step of executing a temperature controlling process after the detecting process for a light source block as a detecting objective in the luminance detecting step, and before the detecting process for another light source block as next detecting objective is executed in the luminance detecting step, during the entire process of executing detecting processes for all of the light source blocks of the backlight apparatus,
• wherein, in the temperature controlling process, at least one of the plurality of light source blocks which include the light source block as the next detecting objective is controlled to turn on so that the light source block as next the detecting objective is heated.