CN214795416U - Head-up display device - Google Patents
Head-up display device Download PDFInfo
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- CN214795416U CN214795416U CN202120084592.5U CN202120084592U CN214795416U CN 214795416 U CN214795416 U CN 214795416U CN 202120084592 U CN202120084592 U CN 202120084592U CN 214795416 U CN214795416 U CN 214795416U
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Abstract
An embodiment of the utility model provides a head-up display device is applied to display device technical field, and this display device includes: the projector, the imaging surface, the first reflector, the second reflector, the third reflector and the transmission mirror are fixedly arranged in the display shell; the projector is positioned at the bottom end of the display shell, the imaging surface is positioned above the projector, the first reflector is positioned above the imaging surface, and an included angle between the reflecting surface of the first reflector and the top surface of the imaging surface is an acute angle; the transmission mirror is positioned at the top end of the display shell and between the first reflecting mirror and the second reflecting mirror, an included angle between the bottom surface of the transmission mirror and the reflecting surface of the first reflecting mirror is an obtuse angle, and an included angle between the bottom surface of the transmission mirror and the reflecting surface of the second reflecting mirror is an obtuse angle; the third reflector is positioned below the second reflector and between the transmission mirror and the projector, and the included angle between the reflecting surface of the third reflector and the reflecting surface of the second reflector is an acute angle. The target information may be displayed by means of a windscreen.
Description
Technical Field
The utility model relates to a display device technical field especially relates to a head-up display device.
Background
With the improvement of living standard of people, automobiles are applied to daily trips of people, and safety problems during automobile driving become common concerns of people.
However, during driving of the vehicle, the driver often needs to look down at the information on the dashboard from time to time in order to better understand the driving information of the vehicle, thereby increasing the driving risk.
Because the driver needs to see the road condition ahead through the windshield continuously in the driving process, if the target information during driving, such as the information of vehicle speed, road condition and the like, can be displayed by means of the windshield, the driving risk can be greatly reduced. Therefore, how to display the target information in the driving process by means of the windshield glass is an urgent technical problem to be solved.
SUMMERY OF THE UTILITY MODEL
An object of the embodiment of the utility model is to provide a head-up display device for realize the purpose at the demonstration of the target information of driving the in-process with the help of windshield. The specific technical scheme is as follows:
in a first aspect, an embodiment of the present invention provides a head-up display device, including: the projector, the imaging surface, the first reflector, the second reflector, the third reflector and the first transmission mirror are fixedly arranged in the display shell;
the projector is positioned at the bottom end of the display shell, the imaging surface is positioned above the projector, the first reflector is positioned above the imaging surface, and an included angle between the reflecting surface of the first reflector and the top surface of the imaging surface is an acute angle;
the first transmission mirror is positioned at the top end of the display shell and between the first reflector and the second reflector, an included angle between the bottom surface of the first transmission mirror and the reflecting surface of the first reflector is an obtuse angle, and an included angle between the bottom surface of the first transmission mirror and the reflecting surface of the second reflector is an obtuse angle;
the third reflector is positioned below the second reflector and between the first transmission mirror and the projector, and an included angle between a reflecting surface of the third reflector and a reflecting surface of the second reflector is an acute angle;
the target information projected by the projector is projected to the imaging surface so that the imaging surface displays the target information, the target information sequentially reaches the windshield through the reflection of the first reflector, the second reflector, the third reflector and the first transmission mirror after being displayed by the imaging surface, and a display area for displaying the target information is formed through the projection of the windshield.
Optionally, the mirror surface form of the first transmission mirror is a fresnel lens form.
Optionally, the mirror surface of the second mirror is a free-form surface.
Optionally, the projector is a rear projector using a laser light source.
Optionally, the apparatus further comprises: a fifth mirror;
the fifth reflector is positioned below the imaging surface; the fifth reflector is used for reflecting the target information projected by the projector to the imaging surface so that the imaging surface displays the target information.
Optionally, the apparatus further comprises: a second transmission mirror;
the second transmission mirror is located between the imaging surface and the first reflector, fixedly connected with the display shell, and used for projecting the target information to the first reflector.
The embodiment of the utility model provides a beneficial effect:
the embodiment of the utility model provides a head-up display device, include: the projector is fixedly arranged in a display shell, the projector is positioned at the bottom end of the display shell, the imaging surface is positioned above the projector, the first reflector is positioned above the imaging surface, and an included angle between the reflecting surface of the first reflector and the top surface of the imaging surface is an acute angle; the first transmission mirror is positioned at the top end of the display shell and between the first reflector and the second reflector, an included angle between the bottom surface of the first transmission mirror and the reflecting surface of the first reflector is an obtuse angle, and an included angle between the bottom surface of the first transmission mirror and the reflecting surface of the second reflector is an obtuse angle; the third reflector is located below the second reflector and between the first transmission mirror and the projector, and an included angle between a reflecting surface of the third reflector and a reflecting surface of the second reflector is an acute angle. It is thus clear that, when the target information passes through behind the image plane shows, the target information can pass through in proper order first speculum the second speculum the third speculum and windshield is reachd in the reflection of first transmission mirror to can form the display area who is used for showing the target information with the help of windshield's the projection, that is to say, can form clear virtual image in driver's eyes the place ahead 8 meters with the help of windshield, this virtual image passes through the reflection of light and gets into driver's eyes, and then at driving process, the driver can see through windshield, from the display area, look over the target information in the virtual image promptly, thereby reduced the frequency that the panel board was looked over to the driver's low head, the security of driving has been improved.
In addition, the target information reflection path is completed by a plurality of reflectors which are positioned in different space positions in the display shell, the length of the reflection path can be ensured, and the field angle after optical reflection can reach 12 degrees to 4 degrees, so that the driver can conveniently view the target information. In addition, a reflection path formed by a plurality of reflectors in different spatial positions has high space utilization rate and small occupied volume, so that the difficulty in installation to a cab can be reduced.
Of course, it is not necessary for any product or method of the invention to achieve all of the above-described advantages at the same time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other embodiments can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a head-up display device according to an embodiment of the present invention;
fig. 2 is another schematic structural diagram of a head-up display device according to an embodiment of the present invention;
fig. 3 is another schematic structural diagram of a head-up display device according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a head-up display device according to an embodiment of the present invention, and arrows in fig. 1 are used to represent transmission paths of light. As shown in fig. 1, the apparatus includes: the projector 1, the imaging surface 2, the first reflecting mirror 3, the second reflecting mirror 4, the third reflecting mirror 5 and the first transmitting mirror 6 are fixedly arranged in the display shell 8;
the projector 1 is positioned at the bottom end of the display shell 8, the imaging surface 2 is positioned above the projector 1, the first reflector 3 is positioned above the imaging surface 2, and an included angle between the reflecting surface of the first reflector 3 and the top surface of the imaging surface 2 is an acute angle;
the first transmission mirror 6 is positioned at the top end of the display shell 8 and between the first reflection mirror 3 and the second reflection mirror 4, an included angle between the bottom surface of the first transmission mirror 6 and the reflection surface of the first reflection mirror 3 is an obtuse angle, and an included angle between the bottom surface of the first transmission mirror 6 and the reflection surface of the second reflection mirror 4 is an obtuse angle;
the third reflector 5 is positioned below the second reflector 4 and between the first transmission mirror 6 and the projector 1, and the included angle between the reflecting surface of the third reflector 5 and the reflecting surface of the second reflector 4 is an acute angle;
the target information projected by the projector 1 is projected to the imaging plane 2, so that the imaging plane 2 displays the target information, and after the target information is displayed by the imaging plane 2, the target information sequentially reaches the windshield glass through the reflection of the first reflecting mirror 3, the second reflecting mirror 4, the third reflecting mirror 5 and the first transmitting mirror 6, and a display area for displaying the target information is formed through the projection of the windshield glass.
In consideration of the influence of the length of the display area of the windshield on the length of the reflection path, in this embodiment, the projector 1, the imaging plane 2, the first reflecting mirror 3, the second reflecting mirror 4, the third reflecting mirror 5, and the first transmitting mirror 6 are fixedly mounted at different positions in the display housing 8, so that the target information is optically reflected in a longer path in the display housing 8, thereby ensuring the size of the display area on the windshield. The fixing manner in which the components are mounted in the display housing 8 may be various, for example: adhesive fastening or screw fastening, etc.
In this embodiment, the projector 1 may be fixedly installed on the inner wall of the bottom end of the display housing 8, and the imaging surface 2 is disposed above the projector 1, and the target information may be displayed on the top surface of the imaging surface 2 by projection of the projector 1. It can be understood that, in order to realize the reflection of the target information, the first reflecting mirror 3 may be disposed above the imaging plane 2, so that the reflecting plane of the first reflecting mirror 3 is disposed opposite to the top plane of the imaging plane 2, wherein an included angle between the reflecting plane of the first reflecting mirror 3 and the top plane of the imaging plane 2 is an acute angle, so that the target information obtained by imaging the top plane of the imaging plane 2 may be smoothly reflected to other reflecting mirrors via the first reflecting mirror 3.
In order to facilitate the projection of the target information onto the windshield, the first transmission mirror 6 may be fixedly installed at the top end of the display housing 8, the target information may be projected onto the windshield through the first transmission mirror 6, and the first transmission mirror 6 is located between the first reflection mirror 3 and the second reflection mirror 4, and the third reflection mirror 5 is located below the second reflection mirror 4 and between the first transmission mirror 6 and the projector 1. It can be understood that the target information can be optically reflected by the reflecting surfaces of the mirrors, and when the mirrors sequentially reflect the target information, the reflecting surface of the first mirror 3 can be disposed opposite to the reflecting surface of the second mirror 4, and the reflecting surface of the second mirror 4 can be disposed opposite to the reflecting surface of the third mirror 5.
In addition, in order to project the target information to the windshield by optical reflection, an included angle between the bottom surface of the first transmission mirror 6 and the reflection surface of the first reflection mirror 3 may be set to an obtuse angle, an included angle between the bottom surface of the first transmission mirror 6 and the reflection surface of the second reflection mirror 4 may be set to an obtuse angle, and an included angle between the reflection surface of the third reflection mirror 5 and the reflection surface of the second reflection mirror 4 may be set to an acute angle, so that, after the projector 1 projects the target information to the imaging surface 2, the imaging surface 2 may display the target information, and after the target information is displayed by the imaging surface 2, the target information may sequentially reach the windshield by reflection of the first reflection mirror 3, the second reflection mirror 4, the third reflection mirror 5, and the first transmission mirror 6, and form a display area for displaying the target information by projection of the windshield.
Further, the target information may include text information, image information, and the like, and when the target information includes text information, the text information may include: when the target information includes image information, the current running speed, fuel consumption, temperature inside or outside the vehicle, and the like, the image information may include: and displaying road condition information or navigation information of the current traffic jam condition and the like.
The embodiment of the utility model provides a head-up display device passes through as target information 2 shows the back, target information can pass through in proper order first speculum 3, second speculum 4 third speculum 5 and windshield is reachd in the reflection of first transmission mirror 6 to can form the display area who is used for showing target information with the help of the throwing of windshield, that is to say, can form clear virtual image in 8 meters departments in driver's eyes the place ahead with the help of windshield, this virtual image passes through the reflection of light and gets into in driver's eyes, and then in driving process, the driver can see through windshield, from display area, look over target information in the virtual image promptly, thereby reduced the frequency that the panel board was looked over to the driver's low-head, the security of driving has been improved.
In addition, the target information reflection path is completed by a plurality of reflectors positioned at different spatial positions in the display shell 8, the length of the reflection path can be ensured, and the field angle after optical reflection can reach 12 degrees to 4 degrees, so that the driver can conveniently view the target information. In addition, a reflection path formed by a plurality of reflectors in different spatial positions has high space utilization rate and small occupied volume, so that the difficulty in installation to a cab can be reduced.
Optionally, in an implementation of the present invention, the mirror surface form of the first transmission mirror 6 is a fresnel lens form.
In order to improve the clarity of the target information in the display area, the first transmission mirror 6 may be a lens made of optical plastic, and the mirror surface form of the first transmission mirror 6 may be a fresnel lens form. It is understood that, when the target information is displayed in the display area, the distance between the display area and the driver, and the size of the display area finally presented, are generally related to the refractive index and the focal length of each transmission mirror, etc., in order to ensure the clarity of the target information display, the display area finally presented may be located at a distance of about 8 meters from the eyes of the driver, in this case, the refractive index of the fresnel lens may be 1.4918, and the focal length may be 600 mm. In order to achieve a display area that is present at a distance of around 8 meters from the eyes of the driver, the spacing and focal length between the mirrors can be set on the basis of this.
Optionally, in an implementation manner of the present invention, the mirror surface of the second reflector 4 is a mirror surface using a free-form surface.
It can be understood that, since the windshield is not necessarily a plane glass, but may also be a curved glass with a certain radian, when the windshield is a curved glass, the target information may be projected by the windshield and finally displayed in the display area with distortion, and in order to correct the distortion of the target information during display and reduce the visual fatigue of the driver viewing the target information, the mirror surface of the second reflecting mirror 4 may be a mirror surface with a free curved surface.
Optionally, in an implementation of the present invention, the projector 1 is a rear projector using a laser light source.
To facilitate optical reflection of the target information, the projector 1 may employ a rear projector, that is, the projector 1 may project a light source to the bottom surface of the imaging surface 2 and reach from the bottom surface of the imaging surface 2 to the top surface of the imaging surface 2 so that the top surface of the imaging surface 2 may display the target information. The form of the imaging plane 2 may be various, and for example, the imaging plane 2 may be an imaging plane of a Liquid Crystal On Silicon (LCOS) projector.
In addition, in order to improve the definition of the display area when displaying the target information, the light source of the projector 1 may be a laser light source, and the target information is projected by the laser light source, and when displayed in the display area, the target information has high brightness and color contrast, and the color gamut is large, so that the target information is convenient for the driver to recognize.
Optionally, as shown in fig. 2, in an implementation manner of the present invention, the apparatus further includes: a fifth reflecting mirror 7;
the fifth mirror 7 is located below the imaging surface 2; the fifth mirror 7 is used for reflecting the target information projected by the projector 1 to the imaging plane 2 so that the imaging plane 2 displays the target information.
In order to reduce the distance between the projector 1 and the imaging surface 2 and reduce the overall size of the device, a fifth reflecting mirror 7 may be disposed below the imaging surface 2, and when the projector 1 projects target information, the target information may be projected onto the imaging surface 2 while ensuring the length of an optical reflection path by reflection of the fifth reflecting mirror 7.
Optionally, as shown in fig. 3, in an implementation manner of the present invention, the apparatus further includes: a second transmission mirror 9;
the second transmission mirror 9 is located between the imaging surface 2 and the first reflection mirror 3, the second transmission mirror 9 is fixedly connected with the display housing 8, and the second transmission mirror 9 is used for projecting the target information to the first reflection mirror 3.
It can be understood that, after the projector 1 projects the target information to the imaging plane 2 through the light source, the imaging plane 2 may display the target information by means of the light source, and it is considered that the light utilized when the imaging plane 2 displays the target information is relatively dispersed, which may cause the definition of the target information reflected by the first reflector 3 to be insufficient. Therefore, for example, a second transmission mirror 9 may be provided between the imaging surface 2 and the first reflection mirror 3, and the light used when the imaging surface 2 displays the target information may be adjusted by the second transmission mirror 9.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (6)
1. A head-up display device characterized by comprising: the projector, the imaging surface, the first reflector, the second reflector, the third reflector and the first transmission mirror are fixedly arranged in the display shell;
the projector is positioned at the bottom end of the display shell, the imaging surface is positioned above the projector, the first reflector is positioned above the imaging surface, and an included angle between the reflecting surface of the first reflector and the top surface of the imaging surface is an acute angle;
the first transmission mirror is positioned at the top end of the display shell and between the first reflector and the second reflector, an included angle between the bottom surface of the first transmission mirror and the reflecting surface of the first reflector is an obtuse angle, and an included angle between the bottom surface of the first transmission mirror and the reflecting surface of the second reflector is an obtuse angle;
the third reflector is positioned below the second reflector and between the first transmission mirror and the projector, and an included angle between a reflecting surface of the third reflector and a reflecting surface of the second reflector is an acute angle;
the target information projected by the projector is projected to the imaging surface so that the imaging surface displays the target information, the target information sequentially reaches the windshield through the reflection of the first reflector, the second reflector, the third reflector and the first transmission mirror after being displayed by the imaging surface, and a display area for displaying the target information is formed through the projection of the windshield.
2. A head-up display device as claimed in claim 1, characterized in that the mirror surface form of the first transmission mirror is in the form of a fresnel lens.
3. The head-up display device according to claim 1, wherein the mirror surface of the second reflecting mirror is a free-form surface mirror surface.
4. A head-up display device as claimed in any one of claims 1-3, wherein the projector is a rear projector using a laser light source.
5. A head-up display apparatus according to claim 4, further comprising: a fifth mirror;
the fifth reflector is positioned below the imaging surface; the fifth reflector is used for reflecting the target information projected by the projector to the imaging surface so that the imaging surface displays the target information.
6. A head-up display apparatus according to claim 4, further comprising: a second transmission mirror;
the second transmission mirror is located between the imaging surface and the first reflector, fixedly connected with the display shell, and used for projecting the target information to the first reflector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120084592.5U CN214795416U (en) | 2021-01-13 | 2021-01-13 | Head-up display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120084592.5U CN214795416U (en) | 2021-01-13 | 2021-01-13 | Head-up display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214795416U true CN214795416U (en) | 2021-11-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120084592.5U Active CN214795416U (en) | 2021-01-13 | 2021-01-13 | Head-up display device |
Country Status (1)
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|---|---|
| CN (1) | CN214795416U (en) |
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2021
- 2021-01-13 CN CN202120084592.5U patent/CN214795416U/en active Active
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