Image display device and image display method supporting power control of multicolor light source
First Claim
1. An image display method comprising:
- calculating a parameter representative of an input image on the basis of a histogram with respect to the input image;
analyzing the parameter and selecting a representative model including the input image among a plurality of representative models;
calculating a luminance reduction amount for each color light source of the input image on the basis of a maximum luminance reduction rate;
calculating a power reduction amount for each color light source on the basis of the luminance reduction amount on the basis of power characteristic of each color light source; and
supplying power reduced by the power reduction amount to each color light source.
1 Assignment
0 Petitions
Accused Products
Abstract
Provided is an image display device, more particularly, an apparatus and method that can reduce power consumption and prevent image characteristics from being degraded in an image display device using a multicolor light source. The image display device includes a histogram analysis unit calculating a parameter representative of an input image on the basis of a histogram of the input image, a model selection unit analyzing the parameter and selecting a representative model including the input image among a plurality of representative models, a luminance reduction amount calculation unit calculating a luminance reduction amount for each color light source of the input image on the basis of a maximum luminance reduction rate corresponding to the selected model, a power reduction amount calculation unit calculating a power reduction amount for each color light source according to the luminance reduction amount on the basis of a power characteristic of each color light source, and a power control unit supplying power reduced by the power reduction amount to each color light source.
-
Citations
20 Claims
-
1. An image display method comprising:
-
calculating a parameter representative of an input image on the basis of a histogram with respect to the input image; analyzing the parameter and selecting a representative model including the input image among a plurality of representative models; calculating a luminance reduction amount for each color light source of the input image on the basis of a maximum luminance reduction rate; calculating a power reduction amount for each color light source on the basis of the luminance reduction amount on the basis of power characteristic of each color light source; and supplying power reduced by the power reduction amount to each color light source. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An image display device comprising:
-
a histogram analysis unit calculating a parameter representative of an input image on the basis of a histogram of the input image; a model selection unit analyzing the parameter and selecting a representative model including the input image among a plurality of representative models; a luminance reduction amount calculation unit calculating a luminance reduction amount for each color light source of the input image on the basis of a maximum luminance reduction rate corresponding to the selected model; a power reduction amount calculation unit calculating a power reduction amount for each color light source according to the luminance reduction amount on the basis of a power characteristic of each color light source; and a power control unit supplying power reduced by the power reduction amount to each color light source. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
Specification