A holographic display system provides a maximum intensity value of an intermediate image to decrease a graphics speckle noise. The system includes an SLM having a display with a hologram generating unit and a plurality of pixels for modulating a beam of coherent light. The system further includes a beam splitter for splitting the beam into an object beam and an intermediate image beam that is associated with an intermediate image having the noise. The system further includes a camera for capturing the intermediate image, in response to the camera receiving the intermediate image beam. The system further includes a computer having a processor and a CRM. The processor is programmed to generate an actuation signal associated with a corrective holographic phase shift to decrease the noise. The SLM modifies in real-time a holographic phase of the beam per pixel, in response to the SLM receiving the actuation signal.

A method for holographic display calibration using phase modulation includes projecting an initial graphic on a windshield of a vehicle, capturing an image of the initial graphic with a camera inside a vehicle, determining a loss function value between the image of the initial graphic captured by the camera and a target graphic, modulating a phase of a light beam generating the initial graphic using the loss function value to generate an updated graphic, and displaying the updated graphic on the windshield of the vehicle.

The coordinates of a gaze point of an observer viewing an object outside a vehicle are detected using an output from an interior camera. A two-dimensional aerial image forms at a position corresponding to the gaze point in outside image data. The aerial image is displayed on a luminous display surface and appears with an optical system that can change a display position in the air in the depth direction. When the aerial image is viewable by the observer, the gaze point is at a position at which image data projected on a retroreflective screen can be perceived as a stereoscopic image.

The coordinates of a gaze point of an observer viewing an object outside a vehicle are detected using an output from an interior camera. A two-dimensional aerial image forms at a position corresponding to the gaze point in outside image data. The aerial image is displayed on a luminous display surface and appears with an optical system that can change a display position in the air in the depth direction. When the aerial image is viewable by the observer, the gaze point is at a position at which image data projected on a retroreflective screen can be perceived as a stereoscopic image.

Disclosed is a user interface apparatus for a vehicle, including: an interface unit; a display unit configured to implement multiple display layers each having a different virtual difference; and a processor configured to receive driving situation information of the vehicle through the interface unit, and control the display unit to vary a virtual distance of each of the multiple display layers.

An automated driving unit implements an automated driving of a vehicle by implementing a present operation and a subsequent operation in order. The subsequent operation is an operation to be implemented subsequently to the present operation during the automated driving. A determining unit determines the subsequent operation of the vehicle. An imaging unit creates an image relevant to the subsequent operation according to information on the subsequent operation. A display unit indicates the image relevant to the subsequent operation while the automated driving unit implements the present operation.

An information display apparatus irradiates a transmissive reflection member with light for forming an image so as to make a virtual image of the image visible on the transmissive reflection member. The information display apparatus includes a memory, and a processor coupled to the memory and configured to control, upon a change in depth of a scene position at which to superimpose the virtual image, a degree of change in a part or an entirety of the virtual image to be displayed, differently from a degree of the change in depth.

An image display device includes a light source, a screen, an optical system, a converging lens, an optical distance correction member, and a scanning unit. The converging lens is configured to converge the light emitted from the light source onto the screen. The optical distance correction member is disposed between the converging lens and the screen. The scanning unit scans the screen with the light from the light source. The screen is disposed so as to be inclined with respect to a plane perpendicular to an optical axis of the converging lens so that a viewing distance of the virtual image gradually varies. The optical distance correction member adjusts an optical distance of light transmitting through the optical distance correction member so that a distance between the screen and a focusing position of the light is made substantially identical over an entire image display region in the screen.

A display device mountable on a mobile object includes an image forming unit to form an image with light and a light guide to guide the light forming the image to a transmission and reflection member to cause a virtual image of the image be display within a display area. The virtual image overlaps an object outside the mobile object. The image is formed such that a vanishing point of the virtual image being displayed is displaced from a vanishing point of the object.

Disclosed is a user interface apparatus for a vehicle, including: an interface unit; a display unit configured to implement multiple display layers each having a different virtual difference; and a processor configured to receive driving situation information of the vehicle through the interface unit, and control the display unit to vary a virtual distance of each of the multiple display layers.