Display device is disclosed herein, and may be implementable in a variety of contexts, including a motor vehicle (for example, the instrument cluster). A semi-transparent plane is essentially placed in between a display and a mechanical element member. This allows a virtual projection of information over the mechanical plane in an on-state, while the mechanical element shows non-indicia during the off state.

Disclosed is a display device for displaying a virtual image in front of an occupant of a vehicle. The display device includes an imaging unit configured to capture an image, a luminance adjusting unit configured to adjust luminance of an image to be displayed based on a luminance value of a target area that is a part of the image captured by the imaging unit, and an image display unit configured to display the image having the luminance adjusted by the luminance adjustment unit as a virtual image in a field of view of the occupant, where the target area includes at least a part of a virtual image displayable area.

A head-up display device includes: a reflection member disposed in front of a driver who drives a vehicle; a projection unit configured to project light toward the reflection member and display a virtual image in a region superimposed on a superimposing display target when viewed by the driver; and an imaging unit configured to take an image of a region in front of the vehicle to generate a front image that is an image of the region in front of the vehicle. The projection unit adjusts a luminance distribution of a virtual image in accordance with a luminance distribution of a region of the superimposing display target in the front image.

A vehicle display device includes: a viewpoint position acquisition unit acquiring a user viewpoint position of a user seated in a driver seat of a vehicle; a forward information acquisition unit acquiring forward information of the vehicle; an image generation unit generating an image obtained by reflecting the forward information included within a prescribed area among the forward information acquired by the forward information acquisition unit; an image display unit having a display surface capable of displaying the image generated; and a projection unit projecting the image toward a vehicle's translucent member such that a virtual image is visible to the user. The image generation unit determines the position and the size of a first image element to be displayed, among image elements included in the generated image, on the display surface, according to the user viewpoint position in the vertical direction acquired by the viewpoint position acquisition unit.

A head up display for a vehicle according to an embodiment includes a display panel configured to emit an image light; a polarized light plate configured to make the image light emitted from the display linearly polarized; a reflective mirror configured to reflect the image light onto a windshield of a vehicle; a polarized light reflective mirror configured to be disposed to face the reflective mirror; and a phase delay mirror configured to convert a phase of the light inputted from the polarized light plate and reflect the converted phase to the polarized light reflective mirror, and to convert a phase of the light reflected from the polarized light reflective mirror and reflect the converted phase to the polarized light reflective mirror, thereby minimizing a width in the forward and backward direction.

A head up display for a vehicle including an imaging device configured to emit first linearly polarized light in a first direction and second linearly polarized light in a second direction perpendicular to the first direction; a polarizing reflection mirror through which the first linearly polarized light is transmitted and from which the second linearly polarized light is reflected; a second reflection mirror spaced apart from the polarizing reflection mirror and at which the first linearly polarized light transmitted through the polarizing reflection mirror is reflected to the polarizing reflection mirror; and a first reflection mirror spaced from the polarizing reflection mirror and configured to reflect the second linearly polarized light reflected from the polarizing reflection mirror to a windshield of the vehicle to produce a first image having a first length from the windshield, and to reflect the first linearly polarized light reflected from the second reflection mirror and transmitted through the polarizing reflection mirror to the windshield of the vehicle to produce a second image having a second length from the windshield different than the first length.

A vehicle display apparatus includes an image display panel, a backlight, and a translucent plate. The image display panel displays an image in a display area. The backlight emits a light in a direction from a back surface of the image display panel toward the display area. The translucent plate has a plate shape and is disposed between the image display panel and the backlight. The translucent plate transmits the light emitted from the backlight. The translucent plate has a three-dimensional indicator configured to be visually recognized through the image display panel, and a periphery portion of the translucent plate is disposed out of the display area.

A head-up display device is mounted in a vehicle and virtually displays an image to be viewable by an occupant by projecting the image on a light-transmissive projection member. The head-up display device includes a projector that projects the image as light polarized in a direction of a polarization axis, a polarizer that is disposed on an optical path of the light of the image and has a property of transmitting light polarized along a transmission axis, and a phase shifter that is disposed between the polarizer and the projection member on the optical path and has a property of changing a polarization direction of transmitted light by producing a phase difference. A fast axis direction of the phase shifter intersects with a direction corresponding to the polarization axis, a direction corresponding to the transmission axis, and a direction corresponding to S polarization of the projection member.

A display device for a motor vehicle includes a first display unit oriented horizontally and presenting first image information toward a second display unit, which is oriented at an acute angle of preferably 45? from the first display unit. The second display unit provides second image information from an interior surface directed toward the first display unit. A combiner including a semi-transparent mirror is disposed on the interior surface of the second display unit for merging the first image information together with the second image information. In this way, the first image information and the second image information can be represented simultaneously, with the second image information represented in a plane closer to the observer than the first image information. The display device therefore displays second image information in the form of a text or image such as a warning, overlying image information such as from a navigation system.

An image display device includes a light source, a scanner, a screen, a virtual image optical system and a screen incident angle correcting optical system. The light source emits laser light. The scanner scans the laser light. An image is formed on the screen by the scanned laser light. The virtual image optical system generates a virtual image of the image by the laser light having transmitted through the screen. The screen incident angle correcting optical system orients the scanned laser light toward the screen. The scanner performs at least first scanning and second scanning that has a scanning direction different from a scanning direction of the first scanning. The screen includes a lenticular lens having a lens pitch in a direction parallel to the first scanning. The lens pitch of the lenticular lens is larger than a beam diameter of the laser light near a light receiving surface of the screen.