Yazaki Corporation

Terukazu Kuboyama

Yasufumi Mochizuki

Ami Shibahara

Yoshihisa Yamada

Naoki Ueno

Takuya Ishizawa

A vehicle display device includes an image display device in which an upper display area is disposed to face an eye point of a vehicle, a combiner, an accommodating part that accommodates a lower display area of the image display device and is formed with an opening, and a reflective member that reflects the lower display area toward the combiner. When viewed from the eye point, a first image, which is an image of the opening reflected in the combiner, overlaps the upper display area, and a boundary line of the first image has gaps of first widths between the first image and the upper display area. The first image overlaps a second image which is an image of the lower display area reflected in the combiner, and the boundary line of the first image has gaps second widths between the first image and the second image.

Vehicle display device

A vehicle display device includes a first display unit and at least one second display unit. The first display unit includes an image display device that displays an image on a display surface of a surface, the second display unit includes a display plate portion disposed along a second display area on the cover glass, and a light guide portion including a light guide member that guides light from a light source and radiates the light to the display plate portion. The light guide member of the light guide portion is supported by a case, and protrudes between an edge portion of the image display device and the cover glass. The cover glass includes a gradation portion that is disposed in a position along a boundary with the second display area in a first display area and becomes thinner as getting away from the boundary.

In a light guide pointer, a vertex portion of a light control space is located on a sub-pointer portion side with respect to a center axis of a light entrance shaft, providing appropriate luminance balance between a main pointer portion and the sub-pointer portion. The light control space includes a circular arc portion, thereby broadening diffusion range of light that has passed through the light control space and preventing attenuation of light traveling along inclined portions. A center of the circular arc portion is located on the main pointer portion side with respect to the center axis, allowing strong light that has entered the light control space from the vertex portion to be diffused more. Local focusing and/or attenuation of light can be prevented, while providing appropriate luminance balance between the main pointer portion side and the sub-pointer portion side, thereby reducing luminance unevenness at the light emitting face.

Light guide pointer and light emitting pointer device

A light guide pointer and a light emitting pointer device which can reduce luminance unevenness at a light emitting face are provided. A lower face of a main pointer portion includes a separating face extending away from a light emitting face, thus light reflected by a front inclined portion of a light control space, that is not likely to travel in a direction away from the light emitting face, is not likely to reach to a corner which is a boundary between the separating face and a recessed portion. Consequently, light is not likely to be reflected by the corner between the separating face and the recessed portion, thereby preventing luminance to be partially high at the light emitting face and thereby reducing luminance unevenness.

A light emitting pointer device which can reduce luminance unevenness at a light emitting face is provided. An annular rib is provided between a first holding portion holding an emission shaft and a second holding portion holding a light entrance shaft and the annular rib thereby covers a corner of the light entrance shaft. As a result, the light is not likely to enter a pointer body from the corner of the light entrance shaft, thereby reducing stray light and reducing luminance unevenness. An upper face of the annular rib on the light entrance shaft side has a radius of curvature that is greater than a radius of curvature of the corner of the light entrance shaft and is tapered, thus the corner can be easily covered with a space between the light entrance shaft and the annular rib.

Growing community of inventors

Shimada, Japan

Terukazu Kuboyama