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Title:
IMAGE DISPLAY APPARATUS AND LUMINANCE CONTROL METHOD THEREOF
Document Type and Number:
Japanese Patent JP2011048281
Kind Code:
A
Abstract:

To appropriately control display luminance of a video signal in which one image is constituted by a plurality of frames.

An image display device includes: a display panel; a calculation circuit that calculates a luminance control value, which is a parameter for controlling display luminance, for each frame of a video signal to be displayed on the display panel; and a luminance control circuit that controls the display luminance of the frame using the luminance control value calculated by the calculation circuit. Further, when the video signal is a video signal in which one image is constituted by a plurality of frames, the luminance control circuit applies a same luminance control value to the plurality of frames constituting one image, or decreases the difference of the luminance control values applied to the plurality of frames constituting one image to be lower than a predetermined value.


Inventors:
TSUCHIYA YU
SAGANO OSAMU
Application Number:
JP2009198640A
Publication Date:
March 10, 2011
Filing Date:
August 28, 2009
Export Citation:
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Assignee:
CANON KK
International Classes:
G09G3/20; H04N5/205; H04N13/04
Domestic Patent References:
JP2006259624A2006-09-28
JP2008009391A2008-01-17
JP2007324763A2007-12-13
JP2007133051A2007-05-31
JP2006119200A2006-05-11
JP2010085946A2010-04-15
JP2006259624A2006-09-28
JP2008009391A2008-01-17
Attorney, Agent or Firm:
Kazunobu Sera
Yoshiyuki Kawaguchi
Mayuko Wakuda
Koichiro Sakai
Takeshi Nakamura
Takeshi Niwa



 
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