Self-luminous display apparatus, light emission condition control apparatus, light emission condition control method and program

A light emission condition control apparatus for variably controlling a peak luminance of a display panel in a unit of one frame, comprising:

• a mean gradation value calculation section configured to calculate a mean gradation value of a video signal in a unit of a frame for each one frame;
• a specific condition detection section configured to detect, based on the mean gradation values calculated over a period of several frames, an input of the video signal which satisfies a specific condition in which a drop of a physical peak luminance is not likely to be perceived visually;
• and
• a light emission condition control section configured to perform dropping control of the peak luminance of said display panel in a unit of a frame so that a dropping condition set in advance may be satisfied for a period of time after the frame which satisfies the specific condition is detected until the detection state is canceled.

A light emission condition control method for variably controlling a peak luminance of a display panel in a unit of one frame, comprising the steps of:

• calculating a mean gradation value of a video signal in a unit of a frame for each one frame;
• detecting, based on the mean gradation values calculated over a period of several frames, an input of the video signal which satisfies a specific condition in which a drop of a physical peak luminance is not likely to be perceived visually;
• and
• performing dropping control of the peak luminance of said display panel in a unit of a frame so that a dropping condition set in advance may be satisfied for a period of time after the frame which satisfies the specific condition is detected until the detection state is canceled.

A program for causing a computer, which variably controls a peak luminance of a display panel in a unit of one frame, to execute the steps of:

• calculating a mean gradation value of a video signal in a unit of a frame for each one frame;
• detecting, based on the mean gradation values calculated over a period of several frames, an input of the video signal which satisfies a specific condition in which a drop of a physical peak luminance is not likely to be perceived visually;
• and
• performing dropping control of the peak luminance of said display panel in a unit of a frame so that a dropping condition set in advance may be satisfied for a period of time after the frame which satisfies the specific condition is detected until the detection state is canceled.