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US 8,013,879 B2Granted
Image display apparatus and image display method
AssigneeKabushiki Kaisha Toshiba
InventorsHiroaki Iwahara, Go Tomita
Life of this patent
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Abstract
An image display apparatus including: a display panel configured to display a display image based on an image signal; an illumination unit configured to output an illumination light for illuminating the display panel; and a controller configured to correct, when a illumination request for illuminating the display panel is received, at least one of brightness and chromaticity of the illumination light based on light-on time and light-off time of the illumination unit previous to a time point at which the illumination request is received.
Claims9
An image display apparatus comprising:
- a display panel configured to display an image based on an image signal;
- an illumination module configured to illuminate the display panel with light;
- and
- a controller configured to correct at least one of brightness and chromaticity of the light output from the illumination module,
- wherein the controller comprises a light-on time-factor table that associates light-on time of the illumination module with factors and a light-off time-factor table that associates light-off time of the illumination module with factors,
- wherein the controller is configured to:
- calculate a difference as an estimated value, the difference between an accumulatively added value of factors corresponding to the light-on time of the illumination module acquired from the light-on time-factor table and an accumulatively added value of factors corresponding to the light-off time of the illumination module acquired from the light-off time-factor table;
- and
- set a correction start point on a correction characteristic preset for correcting at least one of the brightness and the chromaticity of the light output by the illumination module based on the estimated value.
6 more elements
An image display method comprising:
- illuminating a display panel configured to display an image based on an image signal with light output from an illumination module;
- calculating a difference as an estimated value, the difference between an accumulatively added value of factors corresponding to light-on time of the illumination module acquired from a light-on time-factor table that associates light-on time of the illumination module with factors and an accumulatively added value of factors corresponding to light-off time of the illumination module acquired from a light-off time-factor table that associates light-off time of the illumination module with factors;
- and
- setting a correction start point on a correction characteristic preset for correcting at least one of brightness and chromaticity of the light output by the illumination module based on the estimated value.
1 more element
Dependencies are inferred from the claim text.