Patent ID: 7015891

Claim:
A backlight setting method of an analog instrument panel, said backlight having a variation mode loaded in a program of a microprocessor, wherein illumination of a first backlight is transitioned into illumination of a second backlight, the illumination of said first backlight dims until faded out, thereby causing a delay phenomenon in said transitioning of said illumination of first backlight into illumination of said second backlight, and, illumination of said second backlight brightens, simultaneous to said dimming of illumination of said first backlight, said simultaneous dimming of illumination of said first backlight and said brightening of illumination of said second backlight produces a mixed, combined color effect, and when illumination of said backlight is transitioning, a user utilizes an external key set to lock different transitioning colors or to lock said mixed, combined color based on said user's preference; and so on, when illumination of said second backlight is transitioned into a illumination of a third backlight, said user is also capable of setting said color.