Abstract: A circuit device is used for a head-up display apparatus. The circuit device includes a distortion correction circuit and an error detection circuit. The distortion correction circuit performs a distortion correction on input image data as image data of an input image and outputs output image data as image data of an output image after the distortion correction. Respective first divisional areas of a first divisional area group formed by division of the input image correspond to respective second divisional areas of a second divisional area group in the output image in the distortion correction. Here, the error detection circuit detects an occlusion error in a display image of the head-up display apparatus based on the output image data of the respective second divisional areas.

Abstract: A circuit device includes a luminance analysis circuit, a luminance information calculation circuit, and a color correction circuit. The luminance analysis circuit executes luminance analysis on image data, and obtains dimming information for local dimming control based on a result of the luminance analysis. The luminance information calculation circuit calculates, based on the dimming information on n×m light source elements, luminance information indicating a luminance of light reaching a target pixel from the n×m light source elements. Among the plurality of light source elements of the backlight, the n×m light source elements are arranged around the target pixel for color correction in the local dimming control. The color correction circuit executes color correction on image data on the target pixel based on the luminance information, and outputs the image data after the color correction to the display device.

Abstract: A circuit device includes a luminance analysis circuit, a luminance information calculation circuit, and a color correction circuit. The luminance analysis circuit executes luminance analysis on image data, and obtains dimming information for local dimming control based on a result of the luminance analysis. The luminance information calculation circuit calculates, based on the dimming information on n×m light source elements, luminance information indicating a luminance of light reaching a target pixel from the n×m light source elements. Among the plurality of light source elements of the backlight, the n×m light source elements are arranged around the target pixel for color correction in the local dimming control. The color correction circuit executes color correction on image data on the target pixel based on the luminance information, and outputs the image data after the color correction to the display device.

Abstract: A circuit device is used for a head-up display apparatus. The circuit device includes a distortion correction circuit and an error detection circuit. The distortion correction circuit performs a distortion correction on input image data as image data of an input image and outputs output image data as image data of an output image after the distortion correction. Respective first divisional areas of a first divisional area group formed by division of the input image correspond to respective second divisional areas of a second divisional area group in the output image in the distortion correction. Here, the error detection circuit detects an occlusion error in a display image of the head-up display apparatus based on the output image data of the respective second divisional areas.