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US 2006/0038825 A1Published application
Display apparatus and display control method for display apparatus
AssigneeCanon Kabushiki Kaisha
InventorYukihiko Sakashita
Life of this patent
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Abstract
A display corrects color unevenness occurring when single colors (R, G or B) are displayed. The display apparatus uses a color mixing ratio conversion unit that determines a mixing ratio of at least two video signals based on display position information in the single color image.
Claims7
A display apparatus comprising:
- a plurality of optical modulation elements respectively displaying different single color images based on a plurality of video signals;
- an optical system which synthesizes the different single color images;
- a color mixing ratio conversion unit that determines a mixing ratio of at least two video signals among the plurality of video signals based on display position information in one of the single color images;
- and
- driving units which respectively drive said plurality of optical modulation elements based on outputs from said color mixing ratio conversion unit.
2 more elements
A display apparatus for displaying a color image based on video signals for a plurality of colors, comprising:
- a position information generating unit for outputting display position information defining a display position in a display screen based on a synchronizing signal;
- a coefficient memory unit for memorizing a correction coefficient at a correction point corresponding to a predetermined display position;
- a coefficient interpolation unit for outputting a matrix coefficient corresponding to the display position in the display screen by interpolating the correction coefficient at a correction point corresponding to the display position;
- a color mixing ratio conversion unit for executing a matrix operation of the video signals for a plurality of colors with the matrix coefficient, wherein the color mixing ratio conversion unit converts a mixing ratio of the video signals for a plurality of colors;
- and
- a driving unit for output a driving signal based on an output from the color mixing ratio conversion unit.
3 more elements
A display control method for a display apparatus, for displaying a color image based on video signals for a plurality of colors, comprising the steps of:
- outputting display position information defining a display position in a display screen based on a synchronizing signal;
- reading out a correction coefficient at a correction point corresponding to a predetermined display position based on the display position information;
- outputting a matrix coefficient corresponding to the display position in the display screen by interpolating the correction coefficient at a correction point corresponding to the display position;
- executing a matrix operation on the video signals for a plurality of colors with the outputted matrix coefficient;
- and
- driving the display apparatus based on an output obtained by converting a mixing ratio of the video signals for a plurality of colors based on a result of the matrix operation.
3 more elements
Dependencies are inferred from the claim text.