Liquid crystal display device, television receiver, and lighting device
AssigneeSharp Kabushiki Kaisha
InventorTakeshi Masuda
Life of this patent
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Abstract
In an embodiment of the present invention, in a liquid crystal display device which controls a light luminance of each of lighting regions, each of lighting regions of a backlight has a smaller width in a horizontal direction than in a vertical direction. This makes it possible to cause a reduction in contrast due to spatial distribution of light luminances, which spatial distribution is generated due to cross talk between lighting regions, to be less perceivable to an observer positioned in an oblique viewing direction.
Claims8
A liquid crystal display device comprising:
- a liquid crystal display panel;
- lighting means including a plurality of lighting regions for lighting the liquid crystal display panel;
- driving means for driving the liquid crystal display panel so that an image is displayed in accordance with an input image signal;
- and
- light control means for controlling a luminance of each of the plurality of lighting regions of the lighting means, in accordance with the input image signal,
- each of the lighting regions having a smaller width in a left-and-right direction of a display screen of the liquid crystal display panel than in an up-and-down direction of the display screen.
A television receiver comprising:
- receiving means for receiving a television broadcast;
- and
- a liquid crystal display device for displaying an image in accordance with the television broadcast received by the receiving means,
- the liquid crystal display device including:
- a liquid crystal display panel;
- lighting means including a plurality of lighting regions for lighting the liquid crystal display panel;
- driving means for driving the liquid crystal display panel so that an image is displayed in accordance with an input image signal;
- and
- light control means for controlling a luminance of each of the plurality of lighting regions of the lighting means, in accordance with the input image signal,
- each of the lighting regions having a smaller width in a left-and-right direction of a display screen of the liquid crystal display panel than in an up-and-down direction of the display screen.
A lighting device comprising a plurality of lighting regions for lighting regions of a liquid crystal display panel, respectively,
- each of the plurality of lighting regions having a smaller width in a left-and right direction of a display screen of the liquid crystal display panel than in an up-and-down direction of the display screen.
Dependencies are inferred from the claim text.