TWM547677U - Head-up display apparatus - Google Patents

Description

Head up display device

The creation is a head-up display device, in particular a head-up display device which can improve contrast and sharpness.

The image display clarity of the head-up display device currently on the market is easily affected by the external environment. For example, in the case of strong natural light during the day, the driver or the observer may not see the front windshield because of insufficient imaging contrast. The image formed on it. Furthermore, the head-up display device currently used has a small imaging distance, which also affects the sharpness of the image formed on the front windshield. As a result, fuzzy imaging not only distracts the driver, but also affects driving safety.

In view of the above problems, the present invention provides a head-up display device, and through the configuration of the projection screen and the reflection of the front windshield, the imaging distance is elongated, and a clear vehicle information image is formed for driving safely.

The present invention relates to a head-up display device suitable for use in a vehicle. The head-up display device comprises a projection screen and a light machine. The light machine projects a light beam and generates a real image on the projection screen. The real image is reflected by a front windshield. A virtual image is formed behind the front windshield, and the observer observes the virtual image through the front windshield.

The head-up display device provided by the present invention adopts a high-gain and high-reflection projection screen to improve the imaging contrast reflected by the front windshield, and the position of the optical machine can lengthen the imaging distance of the projection to form a more Clearly visible images are visible to the driver or observer without being affected by reduced contrast in the daytime due to natural light. In this way, by extending the imaging distance and using the projection screen, it is possible to provide a clearer head-up display imaging and improve driving safety.

1‧‧‧Heading display device

10‧‧‧Optical machine

101‧‧‧ Beam

20‧‧‧Projection screen

21‧‧‧ canopy

22‧‧‧Dashboard

23‧‧‧Front windshield

3‧‧‧Driver

4‧‧‧Car computer

41‧‧‧Image Processing Unit

42‧‧‧Image Correction Module

5‧‧‧Mirror

I‧‧‧Image Information

I _v ‧‧‧virtual image

I _v1 ‧‧‧first virtual image

I _R ‧‧‧ real image

[Fig. 1] is a schematic structural view of the present head-up display device.

[Fig. 2] is another schematic diagram of the architecture of the present head-up display device.

FIG. 1 is a schematic structural view of the present head-up display device. Please refer to FIG. 1. FIG. 1 is an example of a head-up display device 1 applied to a vehicle, and the head-up display device 1 in the present invention is not limited to a vehicle, and is applicable to a ship, an airplane, and a motor vehicle having a front windshield. For the case of transportation, the case is only described as being applied to the vehicle 2. The head-up display device 1 includes a light machine 10 and a projection screen 20.

The optomechanical machine 10 is disposed on the vehicle interior canopy 21, and the projection screen 20 is disposed on the dashboard 22 of the vehicle, that is, wherein the instrument panel 22 refers to an interior component located under the front windshield, and is also inside the instrument assembly. Plaque. Projection screen 20 can be cloth The curtain may also be formed by a film or a coating method, and the present invention does not limit the form of the projection screen 20. The observer such as the driver 3 sits in the cabin and is opposed to the upper dashboard.

The vehicle 2 is provided with an onboard computer 4, and the present creation does not limit the position of the onboard computer 4. The in-vehicle computer 4 includes an image processing unit 41 and an image correction module 42. The image processing unit 41 integrates various information of the vehicle and calculates and outputs an image information I. The above various information of the vehicle includes, but is not limited to, vehicle speed, navigation information, instant fuel amount information and the like.

Referring again to FIG. 1, the optical machine 10 disposed in the vehicle interior canopy 21 receives the image information I output by the image processing unit 41. The image information I is on the dashboard by the light beam 101 projected by the optical machine 10. The projection screen 20 of 22 generates a real image I _R , and after the real image I _R is reflected by a front windshield 23 of the vehicle 2 , a virtual image I _{v is} formed behind the front windshield, and the virtual image I _{v is} finally passed through the image correction module. The virtual image I _v is corrected, and the driver 3 observes the corrected virtual image I _v through the front windshield 23 . The driver 3 observes that the corrected virtual image I _v coincides with the image information I.

In detail, since the image adjustment module 42 embodiment of the virtual image I _v and perform symmetric correction driving vision correction, so that not only the image clarity in this embodiment, so that the driver can more virtual observed image through the front windshield 23 I _v It is right in front of the driver.

2 is a schematic view showing another structure of the present head-up display device. 2 is different from FIG. 1 in that: a mirror 5 is added, and the mirror 5 is disposed on the instrument panel 22. Further, the optical machine 10 is disposed under the instrument panel, and the lower portion of the instrument panel and the instrument panel 22 are respectively located. On the different sides of the dashboard trim panel. The projection screen 20 is disposed in the vehicle interior canopy 21.

Referring to FIG. 2 again, the optical machine 10 disposed under the dashboard of the vehicle receives the image information I transmitted by the image processing unit 41. The image information I is in the indoor canopy 21 by the light beam 101 projected by the optical machine 10. The projection screen 20 at the location generates a real image I _R , and the real image I _R is reflected by the first virtual image I _V1 formed by the mirror 5 disposed on the instrument panel 22 , and the first virtual image I _{V1 is} reflected by the front windshield 23 again, and windshield 23 to form a virtual image behind the I _v, the final corrected image correction module 42 via this virtual image I _v, the driver 3 can be observed through the windshield 23 to the corrected virtual image I _v. The virtual image I _v observed by the driver 3 coincides with the image information I.

In detail, since the image correction module 42 performs the driving field correction on the virtual image I _v2 in this embodiment, not only the image is sharpened, but also the driver can observe the corrected virtual image I _v through the front windshield 23 In front of the driver.

In addition, referring to FIG. 1 again, in another embodiment, the difference from the foregoing embodiment is that the image correction module 42 in the onboard computer 4 firstly images the image information I output by the image processing unit 41. The real image becomes a symmetric real image, and then the symmetrical real image is directly projected by the optical machine 10, and the subsequent optical paths are the same as the optical path described in FIG.

According to the above embodiment, the high-gain and high-reflection projection screen provided by the present invention can improve the imaging contrast reflected by the front windshield, and the position of the optical machine can make the imaging distance of the projection. Long, forming a more visible image for the driver or observer to watch, without being affected by the reduced contrast of the image during daytime exposure to natural light. In this way, by extending the imaging distance and using a high-gain and high-reflection projection screen, a clearer head-up display can be provided. Show imaging to improve driving safety.

Although the technical content of the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention. Anyone who is familiar with the art, and some modifications and refinements that do not depart from the spirit of the present invention should be included in the creation. Therefore, the scope of protection of this creation is subject to the definition of the scope of the patent application.

1‧‧‧Heading display device

10‧‧‧Optical machine

101‧‧‧ Beam

20‧‧‧Projection screen

21‧‧‧ canopy

22‧‧‧Dashboard

23‧‧‧Front windshield

3‧‧‧Driver

4‧‧‧Car computer

41‧‧‧Image Processing Unit

42‧‧‧Image Correction Module

I‧‧‧Image Information

I _v ‧‧‧virtual image

I _R ‧‧‧ real image

Claims (8)

A head-up display device suitable for use in a vehicle, the device comprising: a projection screen, and a light machine that projects a light beam and generates a real image on the projection screen, the real image being reflected by a front windshield A virtual image is formed behind the front windshield, and the observer observes the virtual image through the front windshield. The head-up display device of claim 1, wherein when the light machine is disposed on a roof of the vehicle, and the projection screen is disposed on the dashboard, the light machine receives an image information, and then projects the light beam and projects the light beam. The real image is generated on the screen, and the real image is reflected by the front windshield of the vehicle and formed behind the front windshield, and then the virtual image is corrected by an image correction module, and the observer passes the front windshield. Observe the corrected virtual image. The head-up display device of claim 2, wherein the image correction module is disposed in an on-board computer. The head-up display device of claim 2, wherein the image correction module performs symmetry and driving field of view correction. The head-up display device of claim 1, the head-up display device further comprising a mirror, wherein the projector is disposed under the instrument panel, the projection screen is disposed on a roof of the vehicle, and the mirror is disposed on the dashboard In the upper case, the light machine projects the light beam and generates the real image on the projection screen, the real image is formed by a reflection of the mirror disposed on the instrument panel, and the first virtual image is further transmitted through the front windshield. The virtual image is formed after the glass is reflected on the front windshield, and the virtual image is corrected by the image correction module, and the observer observes the corrected virtual image through the front windshield. The head-up display device of claim 5, wherein the image correction module performs driving field of view correction. The head-up display device of claim 1, wherein the projection screen is a high gain and high reflection projection screen. The head-up display device of claim 1, wherein the light beam comprises a plurality of image information, such as vehicle speed, oil quantity or navigation information.