In a head-up display device, in accordance with lifting and lowering operations of a combiner, each protrusion of a combiner support moves along a guide portion, causing a cover-operation member to turn about a rotary axis in a direction in which a cover is opened or closed. The guide portion includes, from top in order: a first guide portion which engages with the protrusion in a first state (use state); a second guide portion which engages with the protrusion when the cover-operation member turns; and a third guide portion which engages with the protrusion in a second state (non-use state). The angle formed by the direction in which the first guide portion extends and the direction in which the third guide portion extends is less than the angle formed by the direction in which the first guide portion extends and the direction in which the second guide portion extends.

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.

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.

The present invention provides a member for displaying a projected image and a projected image display system in which a clear image can be displayed with high reflectivity and high transmittance without a double image, the member for displaying a projected image including a reflection layer, and a /2 phase difference layer, in which the reflection layer includes a cholesteric liquid crystal layer having selective reflection in a visible light range, and the projected image display system including the member for displaying a projected image, in which the /2 phase difference layer is disposed on an incidence ray side with respect to the reflection layer, and the incidence ray is p-polarized light which vibrates in a direction parallel to an incidence surface.

A head up display mirror holder arrangement for a motor vehicle includes a picture generation unit producing a light field. A mirror reflects the light field such that the light field is visible to the driver as a virtual image. A mirror holder has two opposite ends and an activation feature. The two opposite ends are aligned alone a rotational axis of the mirror. The mirror holder retains the mirror. Each of two bushings is coupled to a respective opposite end of the mirror holder. A calibration switch has minimum proximity to the activation feature of the mirror holder.

Provided are a projection type display device, a control method of a projection type display device, and a control program of a projection type display device, capable of being continuously used even in a case where a vehicle vibrates, and performing optimal display depending on the vibration. An HUD 100 includes a projection display section 50 that projects image light obtained by spatially modulating light emitted from a light source onto a combiner 12 to display a virtual image, a first vibration detector 61 that detects a first vibration of the combiner 12, a second vibration detector 62 that detects a second vibration of the projection display section 50, a third vibration detector 63 that detects a third vibration of the projection display section 50 with respect to the combiner 12 on the basis of the first vibration and the second vibration, and a display controller 64 that controls the image to be displayed by the projection display section 50. The display controller 64 changes a display format of content to be displayed by the projection display section 50 on the basis of the third vibration.

A display device includes a display device main body, a first display surface, and a second display surface, and the display device main body includes a first emitting portion, a second emitting portion, and a housing accommodating them. The first emitting portion emits first display light. The first display surface is provided on a transmission member transmitting light and reflects, to a viewing position side, the first display light being emitted from the first emitting portion. The second emitting portion emits second display light that is different from the first display light. The second display surface is provided on a non-transmission member shielding light and forming at least a part of a light path of the first display light to the first display surface from the first emitting portion and reflects, to the viewing position side, the second display light being emitted from the second emitting portion.

The present invention displays multiple images at different locations in the depth direction, while suppressing a decline in display quality, using projected light emitted from a single projector. A projector 20 emits first projection light L1 and second projection light L2 that have a first projection distance P1. A projection distance lengthening unit 251 having a negative refractive power is positioned along the path of the first projection light L1 between the projector 20 and a first screen 23, and causes an image to be formed on the first screen 23 by lengthening the projection distance P of the first projection light L1. A projection distance shortening unit 252 having a positive refractive power is positioned along the path of the second projection light L2 between the projector 20 and a second screen 24, and causes an image to be formed on the second screen 24 by lengthening the projection distance P of the second projection light L2.

An HUD system, includes at least one first HUD device, namely an AR-HUD device, with at least one first image source for displaying a first image produced by at least one hologram in a first display section of a display region and at least one second HUD device with at least one second image source for displaying a second image produced using geometric projection optics in a second display section of the display region.

A device for a head's up display comprises a picture generating unit; a projector optics; and a combiner. The combiner comprises a substrate made of optically transparent material and micro-optical structures arranged in a discrete array. The picture generating unit is arranged to deliver a beam of light, containing an image, to the projector optics. The projector optics and the combiner are arranged to form a virtual image of the image by reflecting a portion of the beam from the micro-optical structures. In the reflection, for at least a part of the beam reflected from the micro-optical structure, the resulting reflection deviates from the hypothetical reflection from the extrapolated substrate surface.