Display apparatus and display method

A display apparatus comprising:

• an uncorrected video data generator configured to generate uncorrected video data comprising a plurality of pixels each associated with a plurality of uncorrected brightness values corresponding to three or more reference colors;
• a selection processor configured to select first correction data, associated with a luminance level corresponding to a normal mode, or second correction data, associated with a luminance level corresponding to a economy mode;
• a correction processor configured to correct the brightness values associated with each pixel of the uncorrected video data based on the selected correction data;
• a video signal generator configured to generate a video signal based on the corrected video data;
• a display panel configured to display a video image based on the video signal, and comprising a liquid crystal panel and a backlight configured to illuminate the liquid crystal panel based on the luminance level corresponding to the normal mode or the luminance level corresponding to the economy mode,
• wherein a first corrected brightness value obtained by correcting a first uncorrected brightness value based on the first correction data is lower than a second corrected brightness value obtained by correcting the first uncorrected brightness value based on the second correction data, and the first uncorrected brightness value is different from a low brightness value, a high brightness value, and a second uncorrected brightness value, and
• wherein the display panel is configured to display a luminance based on a third corrected brightness value obtained by correcting the second uncorrected brightness value based on the first correction data, which luminance is lower than lowest luminance visible to human eye.

A display method used for a display apparatus, the display apparatus comprising a display panel configured to display a video image based on a video signal, the display panel comprising a liquid crystal panel and;

• and a backlight configured to illuminate the liquid crystal panel based on a luminance level, the method comprising:
• generating uncorrected video data comprising a plurality of pixels each associated with a plurality of uncorrected brightness values corresponding to three or more reference colors;
• selecting first correction data, which is associated with a luminance level corresponding to a normal mode, or second correction data, which is associated with a luminance level corresponding to a economy mode;
• correcting the uncorrected brightness values of each pixel of the uncorrected video data based on the selected correction data, thereby producing corrected video data comprising a plurality of pixels each associated with a plurality of corrected brightness values;
• and
• generating the video signal based on the corrected video data,
• wherein a first corrected brightness value obtained by correcting a first uncorrected brightness value based on the first correction data is lower than a second corrected brightness value obtained by correcting the first uncorrected brightness value based on the second correction data, and the first uncorrected brightness value is between a minimum brightness value and a maximum brightness value.

A computer readable medium having stored thereon a program that, when executed by a computer comprising a display panel configured to display a video image based on a video signal, the display panel comprising liquid crystal panel and a backlight configured to illuminate the liquid crystal panel based on a luminance level, causes the computer to:

• generate uncorrected video data comprising a plurality of pixels each associated with a plurality of uncorrected brightness values corresponding to three or more reference colors;
• select first correction data, associated with a luminance level of the backlight corresponding to a normal mode, or second correction data, associated with a luminance level corresponding to a economy mode;
• correct the brightness values of each pixel of the uncorrected video data based on the selected correction data, and thereby produce corrected video data comprising a plurality of pixels each associated with a plurality of corrected brightness values;
• and
• generate the video signal based on the corrected video data,
• wherein a first corrected brightness value obtained by correcting a first uncorrected brightness value based on the first correction data is lower than a second uncorrected brightness value obtained by correcting the first uncorrected brightness value based on the second correction data, and the first uncorrected brightness value is between a minimum brightness value and a maximum brightness value.