VIDEO IMAGE DISPLAY APPARATUS
First Claim
1. A video image display apparatus that adjusts an amplification degree of the input video image signal in accordance with a video image characteristic amount of an input video image signal, whereinthe input video image signal is amplified all the time in a case where the video image characteristic amount meets predetermined conditions, butthe input video image signal is or is not amplified in a case where the video image characteristic amount does not meet the predetermined conditions.
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Accused Products
Abstract
Brightness expression without solid white pattern is enabled, and video expression with an improved black level is achieved. A distortion module (5) reduces the luminance of a backlight source according to the histogram of the video signal so that the contrast may be a predetermined target one. A configuration design unit (13) sets the gain according to the luminance level (BLreduced) of the backlight source selected by the distortion module (5). When setting the gain, the luminance level (BLref) for reference of the backlight source preset according to the video feature value is referenced. If the video feature value meets a predetermined condition, the input video signal is always amplified with the gain. If not, depending on the relation between the BLreduced and the BLref, the input video signal is amplified or not.
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Citations
17 Claims
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1. A video image display apparatus that adjusts an amplification degree of the input video image signal in accordance with a video image characteristic amount of an input video image signal, wherein
the input video image signal is amplified all the time in a case where the video image characteristic amount meets predetermined conditions, but the input video image signal is or is not amplified in a case where the video image characteristic amount does not meet the predetermined conditions.
Specification