Instrument desk suspension display device capable of being watched by main driver and co-driver

Abstract

The instrument desk suspension display device comprises an image source, a first reflecting mirror and a second reflecting mirror, the first reflecting mirror is located on a linear light path of the image source, the second reflecting mirror is located on a reflecting light path of the first reflecting mirror, and images emitted by the image source comprise a first image and a second image. The first image is displayed in front of the main driving position in a suspension manner after passing through the first reflecting mirror and the second reflecting mirror, and the second image is displayed in front of the co-driving position in a suspension manner after passing through the first reflecting mirror and the second reflecting mirror. The image is displayed above the instrument desk in the vehicle in a suspension manner, a windshield is not needed, the display visual angle is large, and a main driver and a co-driver can watch the image at the same time. The imaging optical path is short, the system optical path is compact, the size is small, the aspheric or free-form surface reflecting mirror can be utilized, the imaging quality is good, dizziness in image watching is avoided, and due to the fact that the designed reflecting mirror is adopted, the light reflectivity is high, and the imaging brightness is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical display technical field especially relates to a main and vice driver can watch's instrument table suspension display device. BACKGROUND

[0002] Mediumless suspension display has wide application in many fields, such as in the car, some states of the car are displayed in the front of the driver's line of sight through air imaging device, such as HUD head-up display device, but the image displayed by this device is virtual image, and the general image is in front of the car, so that the user feels that the image is very far from the person, and touch operation cannot be carried out. In the interactive scene, the image needs to be displayed above the instrument table in the car, and has a large visual angle, so that multiple passengers in the car can watch the image.

[0003] In the prior art, a dihedral angle reflector (negative refraction flat plate) and windshield reflection are used to form a real image to achieve the purpose of human-computer interaction. However, the dihedral angle reflector uses the reflection principle of light, and the formed real image is as large as the picture displayed by the image source, and the visual angle is very small, usually only ± 20°. Moreover, the windshield reflection is needed, which causes a long optical path and a large system volume, affecting the installation and arrangement in the car. Another scheme uses a Fresnel lens to converge light to form an image, and also uses windshield reflection. Although the Fresnel lens can magnify the image source to form a real image, the visual angle is still small, which cannot meet the demand of multiple passengers in the car to watch the image. At the same time, the Fresnel lens has general aberration correction ability, and the windshield of the car is an irregular curved surface, which cannot guarantee the imaging quality of the system, causing visual fatigue, dizziness and other problems for the user watching the image. As mentioned above, the system has a long optical path and a large volume, which affects the actual layout. SUMMARY

[0004] The utility model provides a main and vice driver can watch's instrument table suspension display device, aims at solving the problem of long optical path of system in prior art, which leads to large structure volume.

[0005] The utility model provides a main and vice driver can watch's instrument table suspension display device, including image source, first reflector and second reflector, the first reflector is located on the straight line light path of image source, the second reflector is located on the reflected light path of first reflector, the image that image source sends includes first image and second image, first image is suspended and shows in the front of main driver's position after first reflector and second reflector, second image is suspended and shows in the front of vice driver's position after first reflector and second reflector.

[0006] As a further improvement of the utility model, the image source is any one of TFT, DLP, LCOS or laser scanning module.

[0007] As a further improvement of the utility model, the first image and the second image are arranged symmetrically about the central axis of the physical display area of the image source.

[0008] As a further improvement of the utility model, the first mirror comprises a first reflecting arc surface and a second reflecting arc surface, one end of the first reflecting arc surface is connected with one end of the second reflecting arc surface, and the first reflecting arc surface and the second reflecting arc surface are arranged symmetrically.

[0009] As a further improvement of the utility model, the first image is reflected after passing through the first reflecting arc surface, the second image is reflected after passing through the second reflecting arc surface, and the outgoing light rays of the first reflecting arc surface and the outgoing light rays of the second reflecting arc surface intersect.

[0010] As a further improvement of the utility model, the image suspended and displayed in front of the main driver's seat is a first suspended display image, the image suspended and displayed in front of the co-driver's seat is a second suspended display image, and the first suspended display image and the second suspended display image are imaged in the intermediate position between the second mirror and the viewer.

[0011] As a further improvement of the utility model, the distance range between the first suspended display image and the second suspended display image and the second mirror is 20-400mm.

[0012] As a further improvement of the utility model, the positions of the first suspended display image and the second suspended display image are above the instrument panel and below the windshield.

[0013] As a further improvement of the utility model, the first suspended display image and the first image form a pair of optically conjugated object images, and the second suspended display image and the second image form a pair of optically conjugated object images.

[0014] The utility model has the advantages that the image is suspended and displayed above the instrument panel in the vehicle, the windshield is not needed, the display visual angle is large, the main driver and the co-driver can simultaneously watch the image, the imaging optical path is short, the system light path is compact, the volume is small, the aspheric surface or the free curved surface mirror can be used, the imaging image quality is good, the image is not dazzling when watched, the light reflectivity is high due to the designed mirror, and the imaging brightness is high. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall view and optical path view of the utility model;

[0016] Figure 2 It is the schematic view of the image source of the utility model;

[0017] Figure 3is a side view and light path view of the display device of the utility model;

[0018] Figure 4 is a top view and light path view of the display device of the utility model.

[0019] The drawing reference: 1-image source, 2-first reflector, 3-second reflector, 4-first suspended display image, 5-second suspended display image, 6-instrument desk, 7-co-pilot seat, 8-main driver seat, 9-first image, 10-second image, 21-first reflection camber surface, 22-second reflection camber surface. DETAILED DESCRIPTION

[0020] In order to make the utility model purposes, technical scheme and advantages more clearly, following combining with the drawing and example, the utility model is further detailedly explained.It needs to be explained that, the words "front", "back", "left", "right", "up" and "down" in following description refer to the direction in the drawing, and the words "bottom surface" and "top surface", "inner" and "outer" respectively refer to the direction towards or away from the geometric center of specific component.

[0021] The utility model provides a kind of instrument desk suspended display device that main driver and co-pilot can watch, including image source 1, first reflector 2 and second reflector 3, the first reflector 2 is located on the straight line light path of the image source 1, the second reflector 3 is located on the reflected light path of the first reflector 2, the image of the image source 1 including first image 9 and second image 10, the first image 9 is suspended and displayed in the front of main driver seat 8 after the first reflector 2 and second reflector 3, the second image 10 is suspended and displayed in the front of co-pilot seat 7 after the first reflector 2 and second reflector 3.

[0022] As an embodiment of the utility model, the image source 1 is TFT, DLP, LCOS or any one of laser scanning module.

[0023] As another embodiment of the utility model, the first image 9 and the second image 10 are symmetrically arranged about the center axis of the physical display area of the image source 1.

[0024] As another embodiment of the utility model, the first reflector 2 includes first reflection camber surface 21 and second reflection camber surface 22, one end of the first reflection camber surface 21 is connected with one end of the second reflection camber surface 22, and the first reflection camber surface 21 and the second reflection camber surface 22 are symmetrically arranged.

[0025] As another embodiment of the utility model, the first image 9 is reflected after the first reflecting arc surface 21, the second image 10 is reflected after the second reflecting arc surface 22, and the outgoing light of the first reflecting arc surface 21 intersects with the outgoing light of the second reflecting arc surface 22.

[0026] As another embodiment of the utility model, the image suspended and displayed in front of the main driver's seat 8 is the first suspended and displayed image 4, the image suspended and displayed in front of the co-driver's seat 7 is the second suspended and displayed image 5, and the first suspended and displayed image 4 and the second suspended and displayed image 5 are imaged in the intermediate position between the second mirror 3 and the viewer.

[0027] As another embodiment of the utility model, the distance between the first suspended and displayed image 4 and the second suspended and displayed image 5 and the second mirror 3 ranges from 20 to 400 mm.

[0028] As another embodiment of the utility model, the position of the first suspended and displayed image 4 and the second suspended and displayed image 5 is above the instrument panel 6 and below the windshield.

[0029] As another embodiment of the utility model, the first suspended and displayed image 4 and the first image 9 are a pair of optically conjugated object images, and the second suspended and displayed image 5 and the second image 10 are a pair of optically conjugated object images.

[0030] The utility model provides a kind of instrument panel suspended and displayed device that main and vice driver can watch, make image suspension present on the display above the instrument panel 6 in car, do not need to utilize windshield, the visual angle of display is big, satisfy main driver and co-driver can watch image simultaneously.Image optical path is short, system light path is compact, small in size.Can utilize aspheric surface or free curved surface mirror, imaging image quality is good, and viewing image is not dizzy.Due to the adoption of designed mirror, light reflectivity is high, and imaging brightness is high.

[0031] The image source 1 uses PGU (Picture generated Unit) image, and the light emitted from the PGU image first passes through the first mirror 2, is reflected to the second mirror 3 by the first mirror 2, is then reflected by the second mirror 3, and is imaged in the intermediate position between the second mirror 3 and the viewer, i.e., the first suspended and displayed image 4 and the second suspended and displayed image 5, which is located above the instrument panel 6 and below the windshield. From the perspective of the viewer, the image suspended and displayed above the instrument panel 6 can be seen. The suspended and displayed image and the PGU image are a pair of optically conjugated object images, and can be designed to be equal or enlarged.

[0032] The image source 1 is an image generating module, which can be TFT, DLP, LCOS or laser scanning module, and is used for generating a displayed image source. In the PGU display interface, two images on both sides of the central axis are the first image 9 and the second image 10, which are the object planes for the main driver and the copilot to view images respectively, and are respectively conjugated with the first floating display image 4 and the second floating display image 5 in the optical path. That is, the content of the first floating display image 4 is determined by the first image 9, and the content of the second floating display image 5 is determined by the second image 10.

[0033] The main driver can view the first floating display image 4, which is suspended above the instrument panel 6 by 0-500 mm, and the image does not exceed the height of the windshield. Similarly, the copilot can view the second floating display image 5, but the main driver cannot view the floating display image, and the copilot cannot view the first floating display image 4. The image for the main driver and the image for the copilot are displayed separately, the field of view angle can be reduced, which is beneficial for design implementation, and meanwhile, the common optical path large reflector and TFT are used, so that the volume is maximally reduced.

[0034] The first reflecting arc surface 21 and the second reflecting arc surface 22 are arranged at the first reflector 2 and are respectively located on both sides of the central axis of the system, and can be symmetrically arranged or asymmetrically arranged. The two arc surfaces are respectively responsible for reflecting the first image 9 and the second image 10.

[0035] The distance between the first reflector 2 and the second reflector 3 affects the volume of the system, which is mainly limited by the available space below the instrument panel 6 of the automobile, and is generally not more than 400 mm, and in the design, the distance is 150 mm-210 mm. The first reflecting arc surface 21 and the second reflecting arc surface 22 generally adopt metal or plastic substrates, and the surfaces are polished or coated with a reflective film. Similarly, the reflecting surface type is also designed as a free curved surface, a non-spherical surface or a spherical surface. The second reflector 3 can use transparent or opaque substrates. In order to reduce the influence on the outer surface of the instrument panel 6 of the automobile, the transparent substrate coated with a reflective film is preferentially selected, such as transparent glass, PC, PMMA and the like. The reflecting surface of the second reflector 3 is designed as a spherical surface, a non-spherical surface or a free curved surface.

[0036] The above is a further detailed description of the utility model in combination with the specific preferred embodiments, and the specific implementation of the utility model cannot be limited to these descriptions. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the concept of the utility model, a number of simple deductions or substitutions can be made, and all of them should be regarded as belonging to the protection range of the utility model.

Claims

1. A dashboard floating display device that can be viewed by both the driver and the front passenger, characterized by, The image source, the first mirror and the second mirror, the first mirror is located on the straight line light path of the image source, the second mirror is located on the reflected light path of the first mirror, the image emitted by the image source includes the first image and the second image, the first image is suspended and displayed in front of the driver seat after passing through the first mirror and the second mirror, and the second image is suspended and displayed in front of the front passenger seat after passing through the first mirror and the second mirror.

2. The center console head-up display of claim 1, wherein, The image source is any one of TFT, DLP, LCOS or laser scanning module.

3. The center console head-up display of claim 1, wherein, The first image and the second image are symmetrically arranged about the central axis of the physical display area of the image source.

4. The center console head-up display of claim 1, wherein, The first mirror includes a first reflecting arc surface and a second reflecting arc surface, one end of the first reflecting arc surface is connected with one end of the second reflecting arc surface, and the first reflecting arc surface and the second reflecting arc surface are symmetrically arranged.

5. The center console head-up display of claim 4, wherein, The first image is reflected after passing through the first reflecting arc surface, the second image is reflected after passing through the second reflecting arc surface, and the outgoing light rays of the first reflecting arc surface and the second reflecting arc surface intersect.

6. The center console head-up display of claim 1, wherein, The image suspended and displayed in front of the driver seat is the first suspended display image, the image suspended and displayed in front of the front passenger seat is the second suspended display image, and the first suspended display image and the second suspended display image are imaged in the intermediate position between the second mirror and the viewer.

7. The center console head-up display of claim 6, wherein, The distance between the first suspended display image and the second suspended display image and the second mirror ranges from 20 to 400 mm. 8.The center console floating display device of claim 6, wherein, The positions of the first suspended display image and the second suspended display image are located above the instrument panel and below the windshield. 9.The center console floating display device of claim 6, wherein, The first suspended display image and the first image form a pair of optically conjugate object and image, and the second suspended display image and the second image form a pair of optically conjugate object and image.

Images