Display device having displayable area expansion unit and cutting unit and control method thereof
AssigneeSharp Kabushiki Kaisha
InventorTatsunori Nakamura
Life of this patent
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Abstract
A display device includes a first liquid crystal panel, a second liquid crystal panel disposed on a back face side of the first liquid crystal panel, a position compensation unit that compensates for a display position of an image on the second liquid crystal panel based on position compensation information indicating a relative positional relationship between the first liquid crystal panel and the second liquid crystal panel, and an area expansion unit that expands a displayable area of the image before the display position is compensated for or a displayable area of the image after the display position is compensated for by the position compensation unit.
Claims7
A display device comprising:
- a first liquid crystal panel;
- a second liquid crystal panel disposed on a back face side of the first liquid crystal panel;
- a position compensation unit configured to compensate for a display position of an image on the second liquid crystal panel based on position compensation information indicating a relative positional relationship between the first liquid crystal panel and the second liquid crystal panel;
- an area expansion unit configured to expand a first displayable area of the image before the display position is compensated for, or a second displayable area of the image after the display position is compensated for, by the position compensation unit;
- and
- a cutting unit configured to cut an area not displayed on the second liquid crystal panel from the image expanded by the area expansion unit,
- wherein the area expansion unit expands the first displayable area of the image based on a result of performing a filtering on each of a plurality of pixels composing a perimeter of the image as a pixel of interest.
A control method of a display device including a first liquid crystal panel and a second liquid crystal panel disposed on a back face side of the first liquid crystal panel, the control method comprising:
- compensating for a display position of an image on the second liquid crystal panel based on position compensation information indicating a relative positional relationship between the first liquid crystal panel and the second liquid crystal panel;
- expanding a first displayable area of the image before the display position is compensated for, or a second displayable area of the image after the display position is compensated for, in the compensating for the display position of the image;
- and
- cutting an area not displayed on the second liquid crystal panel from the image expanded in the expanding,
- wherein expanding the first displayable area of the image comprises expanding the first displayable area of the image based on a result of performing a filtering on each of a plurality of pixels composing a perimeter of the image as a pixel of interest.
Dependencies are inferred from the claim text.