A head up display glass and a head up display system are provided. The head up display glass includes an outer glass sheet, an inner glass sheet, an intermediate layer, a transparent conducting coating, and an enhanced reflection coating. The outer glass sheet has a first surface and a second surface opposite the first surface. The inner glass sheet has a third surface and a fourth surface opposite the third surface. The second surface faces the third surface. The intermediate layer is disposed between the second surface and the third surface. The transparent conducting coating is disposed on the second surface or the third surface. The enhanced reflection coating is disposed on the fourth surface. The transparent conducting coating has a reflectivity for P-polarized light not less than 6%. The enhanced reflection coating has a reflectivity for P-polarized light not less than 10%.

A waveguide head-up display (HUD) includes a waveguide that includes a lower surface and an upper surface and is configured to receive an input and project, based on the input, at least one image from the upper surface and into an eyebox, and a prism arranged at least one of on and above the waveguide. The prism includes a lower surface facing the waveguide and configured to receive the at least one image and an upper surface opposite the lower surface configured to project the at least one image received via the lower surface of the prism. The upper surface of the prism is angled relative to the upper surface of the waveguide such that a first normal of the upper surface of the prism is different from a second normal of the upper surface of the waveguide.

A vehicle includes: a cluster including a display panel, and a barrier panel disposed adjacent the display panel and having a plurality of barriers; an image obtainer acquiring an image; a steering wheel disposed adjacent the cluster and the image obtainer; and a controller configured to determine whether or not a condition for performing a three-dimensional image mode is satisfied based on a manipulation state of the steering wheel, to control operations of the display panel and the barrier panel to recognize a user's line of sight based on the image of the image obtainer, perform the three-dimensional image mode based on the recognized line of sight of the user when the condition is satisfied, and to control the operations of the display panel and the barrier panel to perform a two-dimensional image mode when the is not satisfied.

A display apparatus includes a display element, an optical element, a projection optical system, a driver, and a controller. The display element includes a display surface having subpixels arranged in a grid pattern along a first direction and a second direction approximately orthogonal to the first direction. The optical element is configured to define a beam direction of image light emitted from the subpixels in each of strip-shaped regions that extend in the second direction on the display surface. The projection optical system is configured to project image light having the beam direction defined by the optical element to form a virtual image of the display surface. The driver is configured to displace the optical element. The controller is configured to displace the optical element using the driver.

An illustrative example assembly includes a display having a first side for displaying at least one image and a second side facing opposite the first side. The display includes a first portion having a first plurality of layers between the first side and the second side. The display includes a second portion having a second plurality of layers between the first side and the second side. The second plurality of layers includes at least one additional layer more than the first plurality of layers. A camera is situated near the second side of the display with a field of view of the camera at least partially aligned with the first portion of the display.

A head-up display apparatus mounted on a moving body. The head-up display apparatus projects an image on a projecting portion. The head-up display apparatus includes a light source portion, an imaging element, a cold mirror, and a phase shifter. The light source portion emits a source light. The imaging element generates the image and outputs the light of the image. The light of the image has a predetermined polarization state. The cold mirror reflects the light of the image toward the projecting portion. In the cold mirror, an optical multilayer film is disposed on a translucent base member, and the light of the image obliquely enters the cold mirror along a plane of incidence of the cold mirror. The phase shifter converts the light of the image into an S wave. The phase shifter is disposed on an optical path between the imaging element and the cold mirror.

A vehicle may include a display for producing a hologram. The display may include a backlight unit for showing visual content. The display may include an instrument cluster. The instrument cluster may include one or more gauges, such as one or more graphical gauges, analog gauges, or hybrid gauges. The visual content may be in addition to and separate from the hologram. The display may include an illumination frame positioned in front of the backlight unit. The illumination frame may include one or more light elements. The display may include a holographic layer positioned in front of the backlight unit. The holographic layer may include a plurality of holographic layers. The one or more light elements may be configured to emit light through the holographic layer to produce the hologram.

A situation determining section 11 determines a situation of a vehicle on the basis of driving information. A support image setting section 13 sets a support image in accordance with a determination result obtained by the situation determining section 11. A display control section 14 executes display control for displaying the support image set by the support image setting section on a window glass of the vehicle in accordance with the determination result obtained by the situation determining section 11. The support image enables a leading operation for a running route, an emphasis operation for a traffic sign or the like, a visibility lowering operation for an outside-vehicle object that may cause lowering of attentiveness of the driven vehicle, and the like, and driving support can be executed with a natural sense.

A light guide unit includes a first phase shifter disposed on the optical path to convert the display light as the linear polarized light from the projection unit into a circularly polarized light and including a reflection surface directed to the projection member and capable of reflecting a light from the projection member side to the projection member, a second phase shifter disposed on the projection member side of the first phase shifter on the optical path and giving a 1/4 wavelength phase difference to the display light converted into the circularly polarized light by the first phase shifter to convert the display light into a linear polarized light, and a linear polarizer on the projection member side of the second phase shifter on the optical path. The linear polarizer guides the display light converted into the linear polarized light by the second phase shifter toward the projection member.

Method and apparatus are disclosed for gaze detection of occupants for vehicle displays. An example vehicle includes a panoramic display including polarized displays. The example vehicle also includes a controller to identify a primary operator interface and a primary passenger interface and detect, via one or more cameras, an operator gaze and a passenger gaze. The controller also is to present the primary operator interface to an operator via one of the polarized displays corresponding with the operator gaze and present the primary passenger interface to a passenger via one of the polarized displays corresponding with the passenger gaze.