JPH10305742A - Head-up display device for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent lowering of visibility of a display due to sticking of dust and moisture by sealing space between a display part performing light emission display for measured data of a travelling and a projection part by a transparent sealing part. SOLUTION: A transparent sealing part 7 sealing space between a display part 5 and a projection part 6 is provided. This sealing part 7 is formed into a flat shape by transparent synthetic resin which has the same quality as a window screen 3, for instance, the surrounding is fitted into a fitting part 3a formed on the internal surface of the window screen 3 and the bottom side part is fitted into the rear end of a head-up display device 4. By providing this sealing part 7, space between the display part 5 and the projection part 6 of the head-up display device 4 is sealed by the window screen 3 and the sealing part 7, and the display part 5 and the projection part 6 is not exposed to the outside (outside air). Therefore, the display part 5 and the projection part 6 are protected from sticking of dust and moisture and lowering of visibility of a display can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head-up display device for a vehicle.

[0002]

2. Description of the Related Art Some vehicles such as motorcycles have a head-up display device as shown in FIG. The head-up display device 100 includes a display unit 101 for emitting and displaying measurement data relating to traveling such as a traveling speed and an engine speed, and a display (reflection) of the display unit 101 to project (reflect) the eyes of a motorcycle occupant. And a projection unit 102 for visually recognizing the image. In the case of this motorcycle, a projection unit 102 is provided on a part of a window screen 104 of a front cowling 103. In the case of an automobile, a projection unit is provided on a part of a windshield.

[0003]

However, such a conventional head-up display device 100 does not have a motorcycle or a roof because its display unit 101 and projection unit 102 are exposed to the outside (outside air). In the case of a vehicle such as a convertible car, dust and moisture adhere to the display unit 101 and the projection unit 102 and are easily stained, and the visibility of the display often deteriorates. In addition, there is a problem in durability of the entire head-up display device 100.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and a head-up display for a vehicle can be provided which can prevent a decrease in visibility of a display due to adhesion of dust or moisture and can enhance durability. It is intended to provide a device.

[0005]

To achieve the above object, a head-up display device for a vehicle according to the present invention comprises: a display unit for emitting and displaying measurement data relating to traveling;
In a vehicular head-up display device having a projection unit for projecting a display of the display unit and visually recognizing the occupant of the vehicle, a space between the display unit and the projection unit is sealed with a transparent sealing unit. And

As described above, by sealing the space between the display section and the projection section of the head-up display device with the transparent sealing section, the display section and the projection section are protected from adhesion of dust, moisture, etc., and the display is performed. Can be prevented, and the durability of the head-up display device can be increased.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a left side view of a forehead of a motorcycle to which a head-up display device according to the present invention is applied. The front head of the motorcycle 1 is covered with a front cowling 2 made of synthetic resin, and an upper portion of the front cowling 2 is a transparent window screen 3.

FIG. 2 is an enlarged left side view of a portion II in FIG. 1 and shows a first embodiment of the head-up display device. As shown in FIGS. 1 and 2, a display unit 5 is provided on the upper surface of the head-up display device 4 disposed at the front end of the front cowling 2 to emit and display measurement data such as a running speed and an engine speed. I have.

A projection section 6 is provided on a part of the window screen 3. The projection unit 6 includes a display unit 5
Is formed by coating a holographic optical element, for example, so as to be able to project (reflect) the display of, and not to impair the transparency of the window screen 3. Note that the relative angle between the display unit 5 and the projection unit 6 is
Is set so that it can be visually recognized by the eyes of the occupant of the motorcycle when the display is reflected on the projection unit 6.

[0010] A transparent sealing section 7 for sealing the space between the display section 5 and the projection section 6 is provided. The sealing portion 7 is formed of, for example, a transparent synthetic resin of the same quality as the window screen 3 in a flat plate shape, and its periphery is fitted to a fitting portion 3 a formed on the inner surface of the window screen 3. The part is fitted to the rear end of the head-up display device 4.

By providing such a sealing portion 7,
The space between the display unit 5 and the projection unit 6 of the head-up display device 4 is sealed by the window screen 3 and the sealing unit 7, so that the display unit 5 and the projection unit 6 are not exposed to the outside (outside air). For this reason, the display unit 5 and the projection unit 6 can be protected from adhesion of dust, moisture, and the like, so that the visibility of the display can be prevented from lowering. At the same time, the durability of the head-up display device 4 can be increased.

FIG. 3 is a left side view showing a second embodiment of the head-up display device. The head-up display device 8 has a display unit 9 built therein and inclined forward, and a separate cover member 10 is mounted on an upper portion thereof. The cover member 10 is integrally formed with a projection part 11 having a curved surface shape along the inner surface of the window screen 3 and a transparent sealing part 12 in a flat plate shape. The entire display device 8 is unitized. The display on the display unit 9 is projected on the projection unit 11 of the cover member 10, and the image is visually recognized by the eyes e of the motorcycle occupant.

As described above, since the upper portion of the head-up display device 8 is covered by the cover member 10 in which the projection unit 11 and the sealing unit 12 are integrated, the display unit 9 and the projection unit
11 is more securely sealed to the outside. Therefore, it is possible to effectively prevent a decrease in visibility of the display due to adhesion of dust, moisture, and the like, and to enhance the durability of the head-up display device 8. Also, the head-up display device 8
Is completely unitized, so that the attachment / detachability of the motorcycle to / from the vehicle body and the maintainability are also improved.

FIG. 4 is a left side view showing a third embodiment of the head-up display device. This head-up display device 13 is mounted on an open car 14, and a display unit 16 provided on the upper surface of a dashboard 15;
And a projection unit 18 provided on a windshield 17. Further, a transparent flat plate-shaped sealing portion 19 for sealing the space between the display unit 16 and the projection unit 18 is provided.

Also in the case of the head-up display device 13, the display on the display unit 16 is projected on the projection unit 18,
The image is visually recognized by the eyes e of the open car driver. This head-up display device 13
Since the space between the display unit 16 and the projection unit 18 is sealed by the sealing unit 19 and the windshield 17, the display unit 16 and the projection unit 18 can be effectively protected from dust, moisture, and the like. .

[0016]

As described above, the head-up display device for a vehicle according to the present invention emits and displays measurement data relating to traveling, and displays the display on the display unit to visually recognize the display of the display by the occupant of the vehicle. A head-up display device for a vehicle, comprising a projection section for causing the display section and the projection section to be sealed with a transparent sealing section. It is possible to protect the display from being deteriorated by protecting it from the adhesion of water and moisture, and to enhance the durability of the head-up display device.

[Brief description of the drawings]

FIG. 1 is a left side view of a forehead of a motorcycle to which a head-up display device according to the present invention is applied.

FIG. 2 is an enlarged left side view of a portion II in FIG. 1, showing a first embodiment of a head-up display device.

FIG. 3 is a left side view showing a second embodiment of the head-up display device.

FIG. 4 is a left side view showing a third embodiment of the head-up display device.

FIG. 5 is a left side view of a head-up display device showing a conventional technique.

[Explanation of symbols]

 1 Motorcycle 4,8,13 Head-up display unit 5,9,16 Display unit 6,11,18 Projection unit 7,12,19 Sealing unit 14 Open car

Claims (1)

[Claims] 1. A head-up display device for a vehicle, comprising: a display unit for emitting and displaying measurement data relating to traveling; and a projection unit for projecting the display of the display unit so that an occupant of the vehicle can visually recognize the display. , 9,16 and the projection units 6,11,
A head-up display device for a vehicle, wherein a space between the head-up display device and the vehicle is sealed by transparent sealing portions.