Abstract: An image display device includes an imaging unit, a color temperature detection unit, a color temperature sensor, a white balance adjustment unit and a display unit. The imaging unit is configured to capture an image of a rear of a vehicle. The color temperature detection unit is configured to detect a color temperature of a captured image. The color temperature sensor is installed at a front of the vehicle to detect a color temperature of incident light. When a difference between the color temperature of the captured image and the color temperature of the incident light is a color temperature threshold value or greater, the white balance adjustment unit is configured to switch from a first white balance adjustment based on the color temperature of the captured image to a second white balance adjustment based on the color temperature of the incident light.

Abstract: An image display device includes an imaging unit, a color temperature detection unit, a color temperature sensor, a white balance adjustment unit and a display unit. The imaging unit is configured to capture an image of a rear of a vehicle. The color temperature detection unit is configured to detect a color temperature of a captured image. The color temperature sensor is installed at a front of the vehicle to detect a color temperature of incident light. When a difference between the color temperature of the captured image and the color temperature of the incident light is a color temperature threshold value or greater, the white balance adjustment unit is configured to switch from a first white balance adjustment based on the color temperature of the captured image to a second white balance adjustment based on the color temperature of the incident light.

Abstract: The present invention relates to a head-up display apparatus that projects an image of a displaying device forward. The displaying device includes a plurality of display surfaces. The direction of each of the display surfaces differs from the directions of the other display surfaces. At least one display surface is a reference display surface that projects an image in a vertical direction. Another surface is a stereoscopic inclination display surface that projects an image inclined relative to the image of the reference display surface.

Abstract: The head-up display apparatus includes a displaying device installed inside an instrument panel, an opening portion formed in the instrument panel, and a combiner disposed above the opening portion. An image of the displaying device is projected to the combiner through the opening portion. The displaying device is a segment display. The segment display includes a plurality of light sources and a character/symbol plate having a plurality of image informing parts. The combiner is made of a non-translucent dark plate or a semi-translucent dark smoke plate.