An HUD apparatus for a vehicle including: a housing mounted in a vehicle; a cover member configured to open/close the entrance of the housing; a combiner operated separately from the cover member, and protruding outward from the inside of the housing; a rotating cam rotatably installed in the housing, rotated by rotation power, and having guide grooves; a first gear member having one side connected to the cover member and the other part inserted into the guide groove, and operated by rotation of the rotating cam so as to move the cover member; and a second gear member having one side connected to the combiner and the other side inserted into the guide groove, and operated by the rotation of the rotating cam so as to move the combiner to the outside or inside of the housing.

A display device for a vehicle including: a first display configured to output first light forming first visual information; a second display configured to output second light forming second visual information; a light synthesizing unit located on an advancing path of each of the first light and the second light and forming a first acute angle with the first display and a second acute angle with the second display and configured to transmit therethrough the first light from the first display and reflect the second light from the second display; a first tiltable reflector; a second tiltable reflector; and a driving unit configured to: tilt the first tiltable reflector to form a first angle with the second display so the first tiltable reflector reflects part of the second light directed toward the light synthesizing unit toward a first direction, and tilt the second tiltable reflector to form a second angle with the first display so the second tiltable reflector reflects part of the first light directed toward the light synthesizing unit toward a second direction different from the first direction.

A head mounted system can include a video camera that is configured to provide image data. A wireless interface circuit can be configured to receive augmentation data from a remote server. A processor circuit can be coupled to the video camera, where the processor circuit can be configured to register the image data with the augmentation data and combine the image data with the augmentation data to provide augmented image data. A projector circuit, coupled to the processor circuit, the projector circuit can be configured to project the augmented image data from the head mounted system onto a surface.

A head up display apparatus configured to display a virtual image corresponding to video to a driver by projecting the video onto a windshield of a vehicle, includes: a video display apparatus including an LED light source and a display element, the video display apparatus being configured to form the video on the display element; and a virtual image optical system configured to cause light emitted from the video display apparatus to be reflected by the windshield to display the virtual image in front of the vehicle. The virtual image optical system includes a concave mirror and an optical element, and a freeform surface of the concave mirror is set so that an optical axis of video light traveling from the concave mirror toward the windshield is inclined in a horizontal direction.

An image rendering apparatus includes a light source unit, a detecting unit, an optical scanner, a light source driving unit, and an adjusting unit. The light source driving unit is configured to control the light source unit in such a way that a rendered image is generated by the scan of the optical scanner inside a scan area scanned by the optical scanner and that a characteristic laser beam is emitted at a position and in a pattern corresponding to a rendered content of the rendered image. The rendered image includes an indicator related to a speed of a vehicle. The light source driving unit is configured to control the light source unit to emit the characteristics detecting laser beam in such a way that a scale for the indicator related to the speed of the vehicle is rendered.

Head-up display includes display device, projection optical system, a polarization member, and a first polarizer. Display device displays an image. Projection optical system includes refraction lens. Projection optical system projects the image displayed on display device to an observer. The polarization member is disposed between projection optical system and a reflection member that reflects light from projection optical system. Transmittance of the polarization member depends on a polarization direction of transmitted light. The first polarizer is disposed behind refraction lens on an optical path starting from display device. The first polarizer rotates a predetermined polarized component by a quarter of wavelength.

An image display apparatus includes an image forming element, an illumination optical system that guides light emitted from a light source to the image forming element, and a plurality of lenses that project a trapezoidal image formed by the image forming element onto a projected surface. The plurality of lenses have an optical axis that is at an inclination of 1 or more with respect to a perpendicular of a plane including an image forming surface of the image forming element. First rays of the light have a first focal point and second rays of the light have a second focal point. The first focal point is farther from the image forming element than the second focal point is from the image forming element. The first rays form the first portion of the trapezoidal shape and the second rays form the second portion of the trapezoidal shape.

First and second cover members of a cover of a head-up display device cover an opening region of a housing. The first cover member is rotationally movable with respect to the housing around a first rotation fulcrum fixed to the housing. The second cover member is rotationally movable with respect to the first cover member around second rotation fulcrums respectively fixed to first and second end parts of the first cover member. When the first cover member turns with respect to the housing and the second cover member turns with respect to the first cover member, the first end part is located at an outer side than a first side of a mirror, and the second end part is located at an outer side than a second side of the mirror. The second cover member is not present in an optical path of light projected from a projector to the mirror.

A display apparatus includes a light-emitting component, a controller, a digital micro-mirror device, a first projection assembly and a second projection assembly. The controller is configured to alternately output a first image signal and a second image signal to the digital micro-mirror device. The digital micro-mirror device is configured such that in response to receiving the first image signal, at least one micro-lens is rotated to a respective first preset position, and that in response to receiving the second image signal, at least one micro-lens is rotated to a respective second preset position. The first projection assembly is configured to receive light reflected by the at least one micro-lens located at the respective first preset position and output a first image. The second projection assembly is configured to receive light reflected by the at least one micro-lens located at the respective second preset position and output a second image.

Disclosed herein is a head-up display apparatus integrated with a cluster. The head-up display apparatus integrated with the cluster may include a cluster housing unit provided in front of a driver, a cover unit mounted to a top of the cluster housing unit and having a display unit, and a combiner unit rotatably coupled to the cover unit, light generated in the cluster housing unit being irradiated onto the combiner unit to form an image.