A head-up display includes a housing; a screen disposed in the housing, the screen including a Fresnel pattern and facing a windshield; an illumination optical module configured to generate and irradiate light; an image generator configured to receive the light irradiated from the illumination optical module and generate image light; and a projection optical module configured to project the image light generated from the image generator onto the screen, wherein an upper surface of the screen faces a rearward upper direction away from the windshield or a forward upper direction toward the windshield according to an angle of the windshield with respect to a horizontal plane, and wherein a curvature of the Fresnel pattern of the screen is directly proportional to the angle of the windshield.

A head-up display includes a housing; a screen disposed in the housing, the screen including a Fresnel pattern and facing a windshield; an illumination optical module configured to generate and irradiate light; an image generator configured to receive the light irradiated from the illumination optical module and generate image light; and a projection optical module configured to project the image light generated from the image generator onto the screen, wherein an upper surface of the screen faces a rearward upper direction away from the windshield or a forward upper direction toward the windshield according to an angle of the windshield with respect to a horizontal plane, and wherein a curvature of the Fresnel pattern of the screen is directly proportional to the angle of the windshield.

A head up display arrangement for a motor vehicle includes a picture generation unit having a plurality of light emitters conjunctively defining a first plane and each emitting light. A liquid crystal display defines a second plane that is nonparallel to the first plane. A plurality of lenses are disposed between the first plane and the second plane. Each lens passes light from a respective one of the light emitters to a respective zone of the liquid crystal display. Each lens has an optical characteristic that is dependent upon a distance between the respective one of the light emitters and the respective zone of the liquid crystal display. At least one mirror reflects light emitted by the liquid crystal display such that the reflected light is again reflected by a windshield of the motor vehicle to be visible by a human driver of the motor vehicle as a virtual image.

A head up display arrangement for a motor vehicle includes a picture generation unit having a plurality of light emitters conjunctively defining a first plane and each emitting light. A liquid crystal display defines a second plane that is nonparallel to the first plane. A plurality of lenses are disposed between the first plane and the second plane. Each lens passes light from a respective one of the light emitters to a respective zone of the liquid crystal display. Each lens has an optical characteristic that is dependent upon a distance between the respective one of the light emitters and the respective zone of the liquid crystal display. At least one mirror reflects light emitted by the liquid crystal display such that the reflected light is again reflected by a windshield of the motor vehicle to be visible by a human driver of the motor vehicle as a virtual image.

A display device for a vehicle includes: a display, a polarization switching unit, a reflector, and a controller. The polarization switching unit includes a wave plate that can cause emission light of the display to be emitted while changing a polarization direction thereof, and a drive device that can rotate the wave plate between a position of not using polarizing sunglasses and a position of using polarizing sunglasses. The controller rotates the wave plate within a prescribed range, detects luminance values for each fixed rotation angle of the wave plate within a prescribed range from imaging information of an imaging device that transmits a principal component of transmitted light of the wave plate at a position of the eye box, and sets, as a correction angle, a rotation angle of the wave plate corresponding to a maximum luminance value among the luminance values.

A display device for a vehicle includes: a display, a polarization switching unit, a reflector, and a controller. The polarization switching unit includes a wave plate that can cause emission light of the display to be emitted while changing a polarization direction thereof, and a drive device that can rotate the wave plate between a position of not using polarizing sunglasses and a position of using polarizing sunglasses. The controller rotates the wave plate within a prescribed range, detects luminance values for each fixed rotation angle of the wave plate within a prescribed range from imaging information of an imaging device that transmits a principal component of transmitted light of the wave plate at a position of the eye box, and sets, as a correction angle, a rotation angle of the wave plate corresponding to a maximum luminance value among the luminance values.

A resin-molded article is fixed to and used on a plate-shaped member formed in a plate shape. The resin-molded article is such that an upper surface contact portion that is contactable with an upper surface of the plate-shaped member, an end surface contact portion that is contactable with an end surface of the plate-shaped member, and a lower surface contact portion that is formed separately from the end surface contact portion and that is contactable with a lower surface of the plate-shaped member are formed integrally with a body portion. It is preferable that an end portion contact surface of the end surface contact portion is disposed in substantially the same direction as the end surface of the plate-shaped member, the end portion contact surface being contactable with the end surface of the plate-shaped member.

A vehicle display device includes: a housing mounted on a vehicle and having an opening facing a windshield; an image display device that is disposed inside the housing and outputs display light of an image; a mirror that is disposed inside the housing, faces the windshield through the opening, and reflects the display light toward the windshield; a cover that is transparent, disposed at the opening and having a free-form surface formed to have an optical function; and a suppression means that is disposed at an edge of the cover and suppresses reflection of light on an end surface of the cover.

A vehicle display device includes: a housing mounted on a vehicle and having an opening facing a windshield; an image display device that is disposed inside the housing and outputs display light of an image; a mirror that is disposed inside the housing, faces the windshield through the opening, and reflects the display light toward the windshield; a cover that is transparent, disposed at the opening and having a free-form surface formed to have an optical function; and a suppression means that is disposed at an edge of the cover and suppresses reflection of light on an end surface of the cover.

A system, device, and process to generate symbology to display weather and non-weather hazards on the heads up display (HUD) based on information gathered and analyzed by a weather radar is described. The techniques of this disclosure may enable the pilot to gain safety information about weather and non-weather information collected by the weather radar by looking at the HUD rather than switching their attention between look down displays and HUDs.