Maxell, Ltd.

Hitachi Industry & Control Solutions, Ltd.

Souta Sato

Yuji Fujita

Nozomu Shimoda

Akio Misawa

Yuki Nagano

Takumi Nakada

Haruhiko Yoneda

Toshinori Sugiyama

Kazuomi Kaneko

Tomoki Yamamoto

Nagayasu Tsutsumi

Nobutaka Amada

Maki Hanada

A main controller of an HUD is configured to: acquire road surface information of a front road surface based on a plurality of measurement points on the front road surface, which is detected by a road surface detection sensor mounted on a vehicle with the HUD and is positioned forward of a traveling direction of the vehicle; calculate, by using the road surface information, a virtual image plane position on a virtual image plane where a virtual image of a display object is displayed, which is a display position of the virtual image for displaying the virtual image along the front road surface; and calculate a display position of a display surface within an image display device, which corresponds to the virtual image plane position, so as to output, to the image display device, a control signal for displaying the display object on the display position of the display surface.

Head-up display

Provided is a head-up display apparatus capable of preventing damage due to sunlight and ensuring user convenience. A reflection mirror Mreflects an image created by a display panel and projects it onto a display region. A solar radiation sensor detects a sunlight intensity when a position of sun exists within a predetermined detection range. A blocking mechanism forms a projected light path of an image between the display region and the display panel when being turned off, and blocks the projected light path of the image and an incident light path of the sunlight which is direction opposite thereto when being turned on. A protection processor controls ON/OFF of the blocking mechanism based on an estimated temperature of the display panel, which is estimated by using a sunlight intensity from the solar radiation sensor, luminance of a light source, and an ambient temperature.

Head-up display apparatus

An image display apparatusfor a vehicle is provided with: an image display unitthat has a light source and a display element and outputs image light; a mirrorthat reflects the image light output by the image display unittoward a windshield; a mirror drive unitthat changes the angle and position of the mirror; and a control unitthat determines amounts of change in the angle and position of the mirror and controls the mirror drive unit. The control unitmakes determinations of the amount of change for the angle and position of the mirror in association with each other such that the image is visible even if the position of the driver's eyeschanges and the display state of the image with respect to the driver does not change.

Image display apparatus for vehicle

A head-up display apparatus displays a virtual image suitably overlapped with actual scenery in accordance with a running condition of a vehicle. The head-up display apparatus acquires various kinds of vehicle information which can be detected by a vehicle and the display of the video image is based on the vehicle information. A mirror is configured to reflect the video image formed by the video image display to project onto the windshield. A mirror driver is configured to change an angle of the mirror and a display distance adjusting mechanism is configured to adjust a display distance of the virtual image with respect to the driver. The angle of the mirror is adjusted via the mirror driver based on the vehicle information such that the virtual image can be displayed with respect to the driver to be overlapped with the scenery.

Growing community of inventors

Oyamazaki, Japan

Souta Sato