TWM543368U - Head-up display device with multiple displays - Google Patents

Description

Multiple display head up display device

The present invention relates to a multi-display head-up display device, and more particularly to a head-up display device capable of reducing a driver's visual fainting feeling, which uses a first optical path module to project an image at a close distance in front of the driver's eyes. Positioning, and using a second optical path module to receive an external image light source to obtain a relatively long light path, and projecting the image a long distance, thereby reducing the driver's visual fainting and obtaining an optimal vision The effect is to improve driving safety.

The head-up display technology used in automobiles today is not complicated by the head-up display on the aircraft; it is an optical system, generally consisting of a main device of a projector and a stack of mirrors, the projector is composed of a signal light source, The projection mirror is composed of other optical components. The signal source of the projector is composed of an LCD liquid crystal display or a CRT cathode ray tube, and emits light from the signal source, and then projects the image onto the glass through the projector. The mirror (or a special transparent screen), and then the text or image is displayed by the mirror.

As shown in the first figure, the head-up display of the reference US7936518 represents a drawing comprising an infrared emitting unit 5A for emitting an infrared ray to a user DA; a mirror element 3A for reflecting from a concave mirror 4A a display 2A emits one of the visible light LA, and transmits the infrared light reflected by the user DA and the concave mirror 4A; a plurality of imaging sheets Elements 6A, 7A face the concave mirror 4A to sense infrared rays, and each image comes from a different direction; and an image processing unit 8A that projects the visible light LA onto a windshield plate On the WA, the further virtual imaging VA is reflected to the eyes of the user DA.

Multiplying the object path distance in front of the concave mirror by the concave mirror magnification is the distance of the virtual image imaging. However, the virtual image imaging distance is required to be: (1) the magnification of the concave mirror is improved, but the ideal lens cannot be achieved due to the process limitation of the concave mirror. The virtual image received by both eyes is exactly the same, so the higher the magnification, the larger the error of imaging, so that the error caused by the two eyes receiving the image will cause the viewer to feel dizzy, for the comfort of viewing. , so the magnification is usually controlled within seven times; (2) is to lengthen the object distance light path, but since the head-up display is usually set inside the instrument panel in front of the driving, its space is limited, although in order to lengthen the object distance light path, the optical machine and the concave mirror The mirror is additionally designed so that the light path can reflect the length of the object back and forth. However, due to the limitation of the length, the virtual image distance of the head-up display can only be 2.5 meters away from the driving eye.

According to the function of car navigation, it is mainly to guide the driver to switch to the correct lane or to warn the front distance. In order to play the navigation function, the driver often shifts his attention from the road to the head-up display. This is obviously not a good one. It is better to directly put the navigation guide symbol directly on the road or on the front tail of the warning, so that the driver does not need to shift his attention. It can be said that it is ideal for the driver to put information. The key to the problem lies in how to extend the display distance of the head-up display and attach it directly to the road on the road or to the front tail of the road to be warned, but it is an important subject to be broken.

In order to solve the technical bottleneck described above, the industry has continuously proposed various technical solutions, and related technologies can be considered as TW I443377, TW I506299, TW 201624101, CN. 201610134321, TW 201410829066, CN201510649759, CN201520418145, TW I446001 and other patents.

Although the above patents have disclosed the application technology of the related head-up display, there are some defects in the use:

1. In the above-mentioned patents, some of them use a single projection device to cast a straight cut picture, but the disadvantage is that the standard distance image cast is too short, and the driver is likely to have a visual dizziness when viewing. Affect the safety of driving.

2. Although some patents can be used to project standard distance images and long-distance images through two or more projection devices, or with more cut images, the positions of multiple projection devices are mostly Positioned in the same position, and the images provided are mostly horizontally cut on the same horizontal plane, and there is less straight cut image, so it is not easy to accurately align the navigation guide symbols on the road or stick to it. The warning on the front end of the car makes the navigation guide effect greatly reduced.

In view of the lack of the above formulas, the creators of this case have completed the multi-display head-up display device of this creation after numerous research and improvement, that is, the purpose of the present invention is to provide a head-up display device which can reduce the driver's visual fainting feeling. The system uses a first optical path module to project an image at a relatively close distance in front of the driver's eyes, and uses a second optical path module to receive an external image light source to obtain a relatively long optical path and project the image. A farther distance is provided to reduce the driver's visual fainting, so as to obtain an optimal visual effect, thereby improving driving safety.

In order to achieve the above purpose of the present case, the multi-display head-up display of the creation The first optical path module includes a first optical machine and a first concave mirror. The first optical path module includes a first optical path and a first concave mirror. The first optical path module includes a first optical path and a first concave mirror. The first concave mirror reflects and amplifies the image of the first optical machine, and is projected upwardly on a windshield through the opening; a second optical path module is disposed in the accommodating space, and the second optical path module is disposed a second concave mirror that reflects and amplifies an image source from the outside and projects upward through the opening on the windshield; by the above structure, the first optical path module projects the image on the driving The second optical path module receives an external image light source, and the optical path length of the external image light source is determined by the distance between the second concave mirror and the external image light source, and is not limited to the main body. Dimensions, so that a longer optical path can be obtained, and the distance over which the image can be projected is a feature.

The first optical path module further includes a first mirror disposed in the accommodating space to reflect the image projected by the first illuminator.

The first optical path module further includes a first rotating shaft fixed to the first rotating shaft, and the position of the image projected on the windshield is adjusted by the rotation of the first rotating shaft.

The second optical path module further includes a second rotating shaft fixed to the second rotating shaft, and the position of the image projected on the windshield is adjusted by the rotation of the second rotating shaft.

The second optical path module further includes a second optical machine, and the second optical machine is external The image source that came.

The second optical machine further includes a second mirror disposed in front of the second optical machine to reflect the image projected by the second optical machine.

The second optical machine described above is disposed at a boundary between a ceiling of a vehicle and the windshield.

The second optical machine described above is disposed in a ceiling of a vehicle.

The multiple display head-up display device of the present invention further includes a reflective film disposed on the windshield.

The above main body is installed on the instrument panel of a vehicle.

The multi-display head-up display device of the present invention mainly uses the first optical path module 2 to form a first optical path, and projects the image at a position closer to the front of the driver's eyes to form a first virtual image; and the second optical path The module receives the external image light source to form a second light path, which is not limited to the size of the body, to obtain a relatively long light path, and can project the image to a second virtual image at a long distance.

The first virtual image and the second virtual image respectively display different information, the first virtual image displays necessary texts and images for a long time, and the second virtual image displays a turn in a short (flashing) at a horizontal display angle. Or hazard warning symbol and fit with the real world. Since the imaging of the second virtual image is displayed in a blinking manner, the imaging time can be reduced, thereby reducing the driver's visual fainting and obtaining an optimal visual environment. To improve driving safety.

[study]

2A‧‧‧ display

3A‧‧‧Mirror components

4A‧‧‧ concave mirror

5A‧‧‧Infrared emitting unit

6A, 7A‧‧‧ imaging unit

8A‧‧‧Image Processing Unit

DA‧‧‧ users

LA‧‧‧ visible light

VA‧‧ virtual imaging

WA‧‧‧windshield

[this creation]

1‧‧‧ Subject

11‧‧‧ accommodating space

12‧‧‧ openings

2‧‧‧First optical path module

21‧‧‧First light machine

22‧‧‧First concave mirror

23‧‧‧First mirror

24‧‧‧First rotating shaft

3‧‧‧Second optical path module

31‧‧‧Second concave mirror

32‧‧‧second rotating shaft

33‧‧‧Second light machine

34‧‧‧second mirror

4‧‧‧Reflective film

B‧‧‧ dashboard

C‧‧‧ ceiling

D1‧‧‧first virtual image

D2‧‧‧second virtual image

E‧‧‧ eyes

L1‧‧‧First light path

L2‧‧‧Second light path

W‧‧‧windshield

The first figure is a schematic diagram of a conventional head-up display device.

The second figure is a schematic diagram of the first embodiment of the creation.

The third figure is a schematic diagram of the second implementation of the creation.

The fourth figure is another schematic diagram of a reflective film provided for the windshield of the present invention.

The first embodiment of the multi-display head-up display device of the present invention is as follows: a main body 1 having an accommodating space 11 and an opening 12 therein; a first optical path module 2 The first optical path module 2 includes a first optical machine 21 and a first concave mirror 22, and the first optical machine 21 projects a picture onto a first optical path L1, the first The concave mirror 22 reflects the first optical path L1 and amplifies the picture of the first optical machine 21, the first optical path L1 is projected upward through a window 12 on a windshield W; a second optical path module 3 is disposed on the The second optical path module 3 includes a second concave mirror 31. The second concave mirror 31 reflects and amplifies a second optical path L2 from the external image light source. The second optical path L2 is projected upward through the opening 12. The windshield W; by the composition of the above structure, the principle of virtual image imaging is imaging through a concave mirror, so the concave mirror imaging formula: 1/p+1/q=1/f, f: focal length, q: object distance , p: image distance, the general magnification can enlarge the virtual image, and can also make the virtual image at the same ratio. The distance from the first optical machine 21 to the first concave mirror 22 can be increased by the magnification of the first concave mirror 22 by the magnification of the first concave mirror 22, and the imaging distance on the first optical path L1 can be increased by N. Times, the size of the image is also magnified N times. Because the excessive magnification will make the driver feel dizzy visually, the magnification is usually set at seven times or less, and the most appropriate five times, the imaging distance is only about 2.2 meters. The first optical path module 2 projects the image at a position closer to the front of the driver's eye E to form a first virtual The second optical path module 3 receives an external image light source to form a second optical path. The optical path length of the external image light source is determined by the distance between the second concave mirror 31 and the external image light source, and thus is not limited. The size of the main body 1 can obtain a relatively long optical path, and the second concave mirror 31 has a higher magnification (12-15 times), so that the required distance (seven meters or more) can be achieved, and the image is flickered. The setting can reduce the imaging time to reduce the driver's visual fainting, and can project the image to a second virtual image D2 at a longer distance.

Since the first virtual image D1 and the second virtual image D2 respectively display different information, the first virtual image D1 displays necessary characters and images for a long time, and the second virtual image D2 is displayed at a horizontal display angle. The turning or danger warning symbol is displayed and fits with the real world. Since the imaging of the second virtual image D2 is displayed in a blinking manner, the imaging time can be reduced, thereby reducing the driver's visual fainting.

The first optical path module 2 further includes a first mirror 23, and the first mirror 23 is disposed in the accommodating space 11 to extend the distance of the first optical path L1 and reflect the first optical machine 21 to project. Out of the image.

The first optical path module 2 further includes a first rotating shaft 24, and the first concave mirror 22 is fixed to the first rotating shaft 24, and the rotation of the first rotating shaft 24 can be adjusted and projected on the windshield. The position of the image on W.

The second optical path module 3 further includes a second rotating shaft 32. The second concave mirror 31 is fixed to the second rotating shaft 32. The rotation of the second rotating shaft 32 can be adjusted and projected on the windshield. The position of the image on W.

The second optical path module 3 further includes a second optical machine 33 disposed at a boundary between a ceiling C of the vehicle and the windshield W, and the second optical machine 33 is external. Image light source.

As shown in the third figure, the second embodiment of the present invention is a multiple display head-up display device, wherein the second light machine 33 is disposed on the ceiling C of the vehicle, and the second light machine 33 further includes a second reflection. The mirror 34 is disposed in front of the second light machine 33 to reflect the image projected by the second light machine 33, so that the total height of the second light machine 33 can be lowered, so that the second The optomechanical 33 is placed in close proximity to the ceiling C of the vehicle.

The multi-display head-up display device 1 of the present invention further includes a reflective film 4 (shown in the second figure), the reflective film 4 is disposed on the windshield W, and the reflective film 4 can be disposed inside the windshield W (as shown in the second figure) or in the windshield W (as shown in the fourth figure), the reflectance of the first virtual image D1 and the second virtual image D2 can be improved.

The main body 1 described above is installed on the instrument panel B of a vehicle, and the main body 1 can be installed in the instrument panel B (not shown) of the vehicle or in the instrument panel B embedded in the vehicle.

The function of the first optical path module 2 of the present invention is equivalent to that of the conventional head-up display, and the image is projected at a position close to the front of the driver's eyes. The second optical path module 3 receives the external image light source and its optical path. The length is determined by the distance between the second concave mirror 31 and the external image light source. Since the size of the main body 1 is not limited, a relatively long optical path can be obtained, and the image can be projected farther distance, which is the characteristic of the creation. .

In summary, the multi-display head-up display device of the present invention uses the first optical path formed by the first optical path module 2 to project the image at a position closer to the front of the driver's eyes, and the second optical path module. The formed second optical path receives the external image light source so as not to be limited to the size of the main body to obtain a relatively long optical path, and can project the image to a distant distance to reduce the driver's visual fainting And get an optimal visual environment to improve Driving safety, in order to effectively solve the existing lack of display of the head-up display, and the technical means used in this creation, but also the prior art, so this creation has patent novelty and progressive requirements.

The specific embodiments set forth in the present disclosure are only used to facilitate the description of the technical content of the present invention, and the present invention is not limited to the above embodiments in a narrow sense, and the patent application below does not exceed the spirit of the present invention. In the context of the scope, the implementation of the various changes is still within the scope of this creation.

1‧‧‧ Subject

11‧‧‧ accommodating space

12‧‧‧ openings

2‧‧‧First optical path module

21‧‧‧First light machine

22‧‧‧First concave mirror

23‧‧‧First mirror

24‧‧‧First rotating shaft

3‧‧‧Second optical path module

31‧‧‧Second concave mirror

32‧‧‧second rotating shaft

33‧‧‧Second light machine

4‧‧‧Reflective film

B‧‧‧ dashboard

D1‧‧‧first virtual image

D2‧‧‧second virtual image

E‧‧‧ eyes

L1‧‧‧First light path

L2‧‧‧Second light path

W‧‧‧windshield

Claims (10)

A multi-display head-up display device includes: a main body having an accommodating space and an opening therein; a first optical path module disposed in the accommodating space, the first optical path module including a first optical machine And a first concave mirror, the first concave mirror reflects and amplifies the image of the first optical machine, and is projected upwardly on a windshield through the opening; a second optical path module is disposed in the accommodating space, The second optical path module includes a second concave mirror that reflects and amplifies the image light source from the outside and projects upward through the opening on the windshield; the first optical path module is composed of the above structure The image is projected at a position closer to the front of the driving eye, and the second optical path module receives an external image light source. The optical path length of the external image light source is determined by the distance between the second concave mirror and the external image light source. Limited to the size of the body to obtain a relatively long light path, and to project the image a farther distance, as its characteristics. The multi-display head-up display device of claim 1, wherein the first optical path module further comprises a first mirror disposed in the accommodating space to reflect the first optical machine The projected image. The multi-display head-up display device of claim 1, wherein the first optical path module further comprises a first rotating shaft, the first concave mirror is fixed to the first rotating shaft, and the first rotating shaft is transmitted through the first rotating shaft Rotate to adjust the position of the image projected on the windshield. The multi-display head-up display device of claim 1, wherein the second optical path module further comprises a second rotating shaft, the second concave mirror is fixed to the second rotating shaft, and the second rotating shaft is transmitted through the second rotating shaft Rotate to adjust the position of the image projected on the windshield. The multiple display head-up display device of claim 1, wherein the second light path The module further includes a second optical machine, which is an external image light source. The multiple display head-up display device of claim 5, wherein the second light machine further comprises a second mirror disposed in front of the second light machine to reflect the second light The image projected by the machine. The multiple display head-up display device of claim 5, wherein the second light machine is disposed at a boundary between a ceiling of a vehicle and the windshield. The multiple display head-up display device of claim 5, wherein the second light machine is disposed in a ceiling of a vehicle. The multi-display head-up display device of claim 1, further comprising a reflective film disposed on the windshield. The multiple display head-up display device of claim 1, wherein the main body is disposed on a dashboard of a vehicle.