Display device and display method

摘要

Disclosed herein is a display device including: a liquid crystal display section adapted to display an image based on a video signal; a backlight; and a processing section adapted to correct the video signal and set the luminance of the backlight based on two pieces of information, a peak level of the video signal in a display screen or in each of a plurality of partial display areas into which the display screen is divided, and factor data obtained from a data map made up of a reference position on the display screen and the factor data that are associated with each other.

主权项

1. A display device comprising:
a liquid crystal display section to display an image based on a video signal on a display screen; a backlight configured to have a plurality of light sources on one or more edge sides of the display screen; and a light guide plate, wherein each of the light sources is configured to emit light, wherein the light emitted from each of the light sources is guided onto an entire surface of a respective partial light-emitting section of a plurality of partial light-emitting sections of the backlight by the light guide plate and emitted to the liquid crystal display section, so as to enable each of the partial light-emitting sections to emit light independently of each other; and a processing section configured to correct the video signal and set luminance of the backlight based on (i) a peak level of the video signal in each of a plurality of partial display areas into which the display screen is divided, and (ii) factor data obtained from a data map made up of a reference position on the display screen and the factor data that are associated with each other, in which the partial light-emitting sections are associated respectively with the partial display areas, wherein the peak level is a peak level of an image to be displayed in each of the partial display areas, wherein the processing section is configured to obtain a respective peak level for each of the partial display areas by determining which unit area of respective plurality of unit areas into which each of the partial display areas is divided has a maximum value of the video signal, assigning the determined maximum value as the peak level of the partial display area and assigning the respective unit area having the maximum value as a respective reference position, and wherein the processing section is configured to determine changes for the data map according to at least one of (i) an operation mode of a plurality of operation modes of the display device or (ii) content to be displayed.