Patent ID: 7385599

Claim:
An information display which displays predetermined information on a display screen, and comprises: a drawing element type detection section for detecting a type of drawing element for each pixel of the display screen; a characteristic setting section for setting the brightness correction characteristic for each pixel of the display screen based on the type of drawing element; a brightness correction section for correcting the brightness for each pixel based on the brightness correction characteristic; and an illumination detection section for detecting the illumination of the surrounding portion of the display screen, wherein the characteristic setting section sets the brightness correction characteristics based on the illumination detected by the illumination detection section and the type of drawing element detected by the drawing element type detection section, when the drawing element type detection section detects that the type of drawing element is a character, the characteristic setting section sets the brightness correction characteristic such that the smaller the illumination detected by the illumination detection section, the smaller the brightness of the gray-scale portion of the outline of a character, when the drawing element type detection section detects an image as a type of drawing element, the characteristic setting section sets the brightness correction characteristic such that the smaller the illumination detected by the illumination detection section, the smaller the correction of the brightness of the low gray-scale level portion which is equal to or lower than a predetermined brightness value, and the larger the correction of the brightness of the high gray-scale portion which is larger than the predetermined brightness vale, and the drawing element type is one of a character and an image, and pixel data and the type of a drawing element corresponding to the pixel data corresponding to the coordinate of the pixel corresponding to the pixel data.