Yazaki Corporation

Usui Kokusai Sangyo Kaisha Limited

Junichi Ichikawa

Tetsuya Sugiyama

Satoshi Notoya

Go Nakamura

Nobuyuki Takahashi

Takuma Ogisu

Jun Shihaku

A display device for a vehicle includes a liquid crystal display device including a display surface for displaying an image; and an optical system including a reflecting surface, and forming an optical path of display light from the display surface toward an eye point of a vehicle. The optical system includes a first reflecting surface placed closest to the display surface in the optical path of the display light, and a magnifying reflecting surface that magnifies and reflects the display light. When viewed from an image horizontal direction, the display surface is inclined toward an optical axis of the display light extending from the display surface toward the first reflecting surface. The optical system is configured so that a width of the optical path of the display light in an image vertical direction is reduced, gradually from the display surface toward the first reflecting surface.

Display device for vehicle

A vehicle display device includes: an optical system that makes display light emitted from an emission unit cross along an intersecting direction intersecting with an optical axis direction of the display light, and then reflects the display light on a display surface provided to a vehicle toward an eye point that is assumed in advance; a light-blocking wall provided to face an optical path of the display light and including a narrowing part that narrows the optical path toward a cross point of the display light along the intersecting direction; and a partial cutoff adjustment structure that partially cuts off a display image by the display light at a portion other than the narrowing part when the eye point moves along the intersecting direction.

Vehicle display device

A vehicle display device includes: an image display configured to emit display light of an image; an optical system configured to project the display light emitted from the image display onto a reflection face ahead of a driver; and an adjustment part provided in an optical path of the display light from the image display to the reflection face, in which the image includes: a first region visible to both eyes of the driver; and a second region that is closer to ends in the image width direction than the first region in the image is, the adjustment part is disposed at a position corresponding to the boundary between the first region and the second region, and the adjustment part is configured such that the amount of the display light penetrating the adjustment part is reduced toward the ends in the image width direction.

A vehicular display device includes: an emitting portion; a reflection portion configured to reflect the display light that is emitted from the emitting portion and is subjected to crossing, to a display surface such that the display light is reflected from the display surface to a previously defined eye point; and a casing including: an inner case; and a lower case housing the inner case inside, in which the inner case includes an inner wall part facing a focal area on which external light reflected from the reflection portion after being incident on the reflection portion from outside the casing focuses, the lower case includes a lower wall part located along the inner wall part, and the casing has a heat-discharge structure of conducting heat from the inner wall part to the lower wall part to discharge the heat outward.

Vehicular display device

A projection display device includes a display device, an optical system, and a shielding plate. The optical system includes a first mirror and a second mirror provided on the regular optical path, the second mirrors being to provide an optical path convergence point on the regular optical path, and the first mirrors being provided at a position corresponding to the optical path convergence point. The projection display device is configured such that a position of a mirror surface of the first mirror and the second mirror is adjustable in accordance with a position of an eye point of a user so as to project the light toward the projection position that corresponds to the position of the eye point. The shielding plate is provided such that the shieling plate does not interfere with the regular optical path and such that the shielding plate interferes with the different optical path.

Projection display device

A vehicle display device includes a projection device including a light-transmitting image display unit displaying an image, a light source emitting light to the image display unit from a back surface side or a front surface side, and a light-shielding cover disposed on a front surface of the image display unit and including an opening. The projection device projects an image onto a reflection unit disposed in front of an occupant in a vehicle. When the projection device is viewed from the front surface side, a shape of the opening is a shape similar to a shape of an image display region in the image display unit, and the opening is separated from an outer edge of the image display region and surrounds the image display region.

Growing community of inventors

Shizuoka, Japan

Junichi Ichikawa