Image processing unit, image processing method, image display device using such image processing unit, and electronic apparatus using such image display device

An image processing unit comprising:

• a discriminating unit for discriminating, for every data unit of an input image signal, whether the data unit is black-and-white image data or color image data;
• a black-and-white image processing unit for detecting at least one of pre-stored line segment patterns from said data unit, and generating color signals for a black-and-white image corresponding to the detected line segment pattern when the discriminating unit has discriminated that said data unit is black-and-white image data;
• and
• a color image processing unit for generating color signals for a color image when the discriminating unit has discriminated that said data unit is color image data or when the black-and-white image processing unit has failed to detect any of the pre-stored line segment patterns from said data unit.

An image processing method comprising:

• discriminating, for every data unit of an input image signal, whether the data unit is black-and-white image data or color image data;
• detecting at least one of pre-stored line segment patterns from said data unit, and generating color signals for a black-and-white image corresponding to the detected line segment pattern when it has been discriminated that said data unit is black-and-white image data;
• and
• generating color signals for a color image when it has been discriminated that said data unit is color image data or when none of the pre-stored line segment patterns have been detected from said data unit.