Nippon Seiki Co., Ltd.

Nippon Seiko Co., Ltd.

Hiroyuki Furusawa

Genichiro Sato

Takanori Shigeno

Yuji Oguro

Norihiko Ushida

Kouichi Jinushi

Akinori Koiida

Masao Itagaki

Shota Koike

Ryoichi Ishikawa

Mitsuaki Tsuboya

Taisuke Sato

Takuya Sekiguchi

Kazuaki Mizuta

Satoru Koyama

Mamoru Takenouchi

In order to provide a head-up display that is capable of reliably displaying a display image, the present invention is provided with: a display device that projects display light; a field lens that adjusts the direction of the display light; a thin-plate screen that has a rear surface for receiving the light emitted from the field lens and a front surface on which a display image is displayed; a screen holder that holds the screen; and a main holder that accommodates the field lens and the screen held by the screen holder.

Head-up display

A head-up display device makes it possible to increase the number of common parts between when mounted in a right-hand-drive car and when mounted in a left-hand-drive car. A head-up display device includes: a first unit which generates display light; and a second unit to which the first unit is attached, and which displays a virtual image by guiding the display light generated by the first unit to a windshield. The first unit is provided with a projector which emits the display light, and a first optical relay which guides the display light from the projector to the second unit along a virtual plane. The second unit is provided with a second optical relay which guides the display light to the windshield such that an irradiation position at which the windshield is irradiated with the display light is shifted in a car width direction crossing the virtual plane.

Head-up display device

The present invention provides a head-up display device wherein a light shielding part for preventing a washout phenomenon is prevented from shining. A head-up display according to the present invention, in which a display unit for emitting display light (L) is housed in a case and the upper portion of the display unit is covered by the light shielding part, has strip-shaped protrusion parts formed on the bottom surface of the light shielding part (). With this constitution, the strip-shaped protrusion parts prevent the scattered light (SL) resulting from the light (L) output from the display unit from illuminating the bottom surface of the anti-washout light shielding part, thereby preventing the bottom surface from being displayed as a virtual image.

The present invention improves slidability between a moving part and a support member that supports the moving part. A head-up display device includes: a display that emits display light; a moving part on which a first sliding surface is formed; and a support member on which a second sliding surface that comes into contact with the first sliding surface is formed. The support member movably supports the moving part. The head-up display device displays vehicle information as virtual images from the display light. Linear protrusions and recesses are formed on the first sliding surface and/or the second sliding surface following the trajectory along which the moving part moves.

A mirror unit includes a concave mirror having a mirror surface reflecting light, and a holder holding the concave mirror. The concave mirror includes first to third positioning protruding portions. The holder includes: a first holder-side positioning portion defining, through contact with the first positioning protruding portion, the position of the concave mirror with respect to the holder at least in the X direction of XY-plane coordinates along the mirror surface; a second holder-side positioning portion defining, through contact with the second positioning protruding portion, the position of the concave mirror with respect to the holder at least in the Y direction of the XY-plane coordinates; and a third holder-side positioning portion defining, through contact with the third positioning protruding portion, the position of the concave mirror with respect to the holder at least in the Z direction orthogonal to the XY lane.

Mirror unit and display device

A head-up display includes: a display projecting light; a reflection part reflecting the light; a supported part disposed on the end of the reflection part and including a cylindrical shaft; a support, through which the shaft passes, rotatably supporting the supported part; and an elastic member which has a U-shape cross-section and in which a hole is formed in one end section and a spherical-surface protrusion protruding towards the hole is formed in the other end section that passes through the center axis of the hole. With the supported part supported by the support, the distal end of the shaft passes through the hole, the distal end-side inner circumferential edge of the shaft abuts the protrusion, and the inner surface of the one end section and that of the other end section of the elastic member cause the supported part and the support part to press against each other.

This head-up display device according to an embodiment of the present invention is mounted on an instrument panel of a vehicle. A display means that emits display light is contained in a chassis having a light transmissive cover having a curved surface, and the display light emitted by the display means is output from the light transmissive cover. The curved surface of the light transmissive cover is curved so that the side on the front side of the vehicle is lower than the side on the back side of the vehicle, and that the curved surface is inclined toward the left-right direction of the vehicle so that a corner of the curved surface is lowest.

Provided is a display apparatus capable of having excellent yield. This display apparatus is provided with: a light source that outputs light for lighting a liquid crystal display element; an optical element (a first light collecting lens or the like) that is disposed on an optical axis of the light source, said optical element being disposed between the light source and the liquid crystal display element; and a case body that houses the optical element. The case body has: an upper opening opened toward the Z axis direction; a bottom section that is positioned on the opposite side to the upper opening in the Z axis direction; and a groove section (a groove section or the like), which is positioned between the upper opening and the bottom section, extends in the Z axis direction, and is recessed in the X axis direction. The optical element has a protruding section (a flange section or the like) that protrudes in the X axis direction, and is housed in the case body in a state wherein the optical element is standing in the Z axis direction by having the protruding section caught in the groove section.

Display apparatus

Provided is a head-up display device such that shaking of a display image due to vibration can be mitigated. This head-up display device, which reflects display light output from a display unit with a reflection unit so as to produce an image to be viewed, includes a first supporting part for supporting the reflection unit rotatably about a rotation axis and a first supported part provided at one end of the reflection unit and supported by the first supporting part. The first supported part has a spherical surface formed thereon, and the first supporting part has a sliding surface that is formed therein and is in substantially point contact or line contact with the spherical surface formed on the first supported part. A first elastic member that presses the first supported part and the first supporting part against each other in the rotation axis direction is provided.

Head-up display support structure for reflection unit

Provided is a head-up display (HUD) device capable of effectively preventing damage to a liquid-crystal display device due to entry of exterior light. A HUD device has a liquid-crystal panel, and is provided with a liquid-crystal display device for realizing a transparent display using light from a backlight, a control means for controlling the liquid-crystal display device, and an optical system for reflecting the display light outputted by the liquid-crystal display device onto a windshield. A flat mirror constituting the optical system allows infrared rays of incident light to pass behind the mirror and reflects the visible light. The HUD device is provided with an infrared-ray sensor positioned behind the flat mirror, and the control means reduces the brightness of the light of the backlight or extinguishes the backlight when the strength detected by the infrared-ray sensor exceeds a predetermined threshold.

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Niigata, Japan

Hiroyuki Furusawa