CN112285927A - Naked-eye 3D reflective diffusion sheet head-up display device - Google Patents
Naked-eye 3D reflective diffusion sheet head-up display device Download PDFInfo
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- CN112285927A CN112285927A CN201910668585.7A CN201910668585A CN112285927A CN 112285927 A CN112285927 A CN 112285927A CN 201910668585 A CN201910668585 A CN 201910668585A CN 112285927 A CN112285927 A CN 112285927A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/01—Head-up displays
- G02B27/0101—Head-up displays characterised by optical features
- G02B2027/0132—Head-up displays characterised by optical features comprising binocular systems
- G02B2027/0134—Head-up displays characterised by optical features comprising binocular systems of stereoscopic type
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Abstract
A naked-eye 3D reflective diffusion sheet head-up display device comprises a projection module and a reflective diffusion sheet, wherein the reflective diffusion sheet is provided with a micro mirror array, the micro mirror array is divided into a left-eye micro mirror group and a right-eye micro mirror group, an image light source of a left-eye pixel and an image light source of a right-eye pixel projected by the projection module are respectively aligned with the left-eye micro mirror group and the right-eye micro mirror group, so that two eyes respectively receive image pictures with different parallaxes, and a 3D stereoscopic image is generated.
Description
Technical Field
The invention relates to a naked-eye 3D reflective diffusion sheet head-up display device, in particular to a naked-eye 3D reflective diffusion sheet head-up display device which can solve the problem that a driver moves the head to interrupt a 3D image, so that two eyes respectively receive image pictures with different parallaxes to provide a better 3D stereoscopic image, and further the driving safety is improved.
Background
The head-up display technology used in the present automobile is an optical system, which generally consists of two main devices, namely a projector and an image-overlapping mirror; the projector consists of a signal light source, a projection lens and other optical elements; the signal light source of the projector is composed of LCD or projector and image screen, the light is emitted from the signal light source, then projected onto the image-superimposing lens (combiner) on the glass or special transparent screen by the projector, and then displayed by the image-superimposing lens to overlap the characters or images with the real scene in front of the eye.
The related patent documents can be referred to JP patent publication nos. 3526157, TW I634869, TW I622505, TW bulletin No. 396280, TW bulletin No. 434444, TW bulletin No. 578011, TW I649590, TW I609199, TW I646375, TW bulletin No. 201730628, and the like.
The most typical example of the above is represented by JP 3526157B, and the technical contents are shown in fig. 1 and 2, which mainly consist in an image display apparatus that uses binocular parallax to realize stereoscopic vision without wearing special glasses, and uses orthogonal (right-angle) and non-right-angle biplane matching lens groups to form a reflecting screen thereof, so that a user can observe a stereoscopic image, and in order to allow more people to simultaneously observe a stereoscopic image in a horizontal direction, the reflecting screen may also be formed by a plurality of different angle lens groups, and the reflecting screen may be configured to have a cone-shaped reflecting mirror a similar to a column in structure, and further has a concave-convex structure B in a vertical direction as vertical diffusion.
In the aforesaid patent publications, most of the technologies of the existing head-up display devices can be improved, but some defects still need to be overcome, for example, the head of a driver needs to be moved or rotated at intervals to observe the surrounding road conditions, or the difference of sitting posture angle adjustment, or the difference of different heights and postures of different drivers during driving, and at this time, the position of the eyes may temporarily or continuously leave the eye box area of the original 3D image, and the problem of 3D image interruption or failure occurs, which is a technical bottleneck to be broken through.
Disclosure of Invention
In view of the above, the present invention provides a head-up display device for a naked 3D reflective diffusion sheet, which can solve the problem that a driver moves his head to interrupt a 3D image, so that two eyes receive images with different parallaxes, thereby providing a better 3D stereoscopic image and further improving driving safety.
To achieve the above object, the present invention provides a head-up display device with a naked-eye 3D reflective diffuser, comprising:
a projection module for projecting an image light source;
a reflective diffusion sheet having an array of micro-mirrors, the image light source being directed toward the reflective diffusion sheet;
the micro-mirror array is divided into a left-eye micro-mirror group and a right-eye micro-mirror group, the left-eye micro-mirror group and the right-eye micro-mirror group are arranged in a staggered mode and correspond to the left eye and the right eye of a driver, the left-eye micro-mirror group and the right-eye micro-mirror group are distributed on the reflective diffusion sheet in a distributed mode, the image light source projects a parallax image with a left-eye pixel image light source and a right-eye pixel image light source in a staggered mode, the left-eye pixel image light source is aligned to the left-eye micro-mirror group on the reflective diffusion sheet, the right-eye pixel image light source is aligned to the right-eye micro-mirror group on the reflective diffusion sheet, and therefore the two eyes receive image pictures with different parallaxes respectively to generate a 3D image.
The micro-mirror is a concave mirror, a convex mirror or a plane mirror.
The left eye micro-mirror array and the right eye micro-mirror array are arranged in two rows at intervals in the reflective diffusion sheet.
The left eye micro-mirror array and the right eye micro-mirror array are arranged in a plurality of rows at intervals and distributed on the reflective diffusion sheet.
The reflective diffusion sheet is provided with a plane or a curved surface, and the plane or the curved surface is provided with the array of the micro-mirrors.
The naked-eye 3D reflective diffusion sheet head-up display equipment further comprises a reflector, wherein the reflective diffusion sheet reflects the image light source to the reflector, and the reflector reflects the image light source to the eye box position of a driver.
The naked-eye 3D reflective diffusion sheet head-up display equipment further comprises a reflecting mirror and a windshield, wherein the reflective diffusion sheet reflects the image light source to the reflecting mirror, the reflecting mirror reflects the image light source to the windshield, and the windshield reflects the image light source to the eye box position of a driver.
The reflector is a curved mirror to compensate the effect of the free curved surface of the windshield.
The reflecting mirror is a concave mirror to reflect and amplify the image.
The windshield is provided with a reflecting film with a semitransparent and semi-reflecting effect.
Another embodiment of the naked-eye 3D reflective diffuser head-up display apparatus provided by the present invention comprises:
a projection module for projecting an image light source;
a reflective diffusion sheet having an array of micro-mirrors, the image light source being directed toward the reflective diffusion sheet;
the camera module faces to the head area of the driver and is connected with the projection module;
the array of the micro-mirror is at least provided with a micro-mirror group with three diffusion areas, the photographing module obtains the positions of the two eyes and the pupil distance width of the two eyes of the driver by an optical eyeball tracking technology, the image light source projects a parallax image with a left eye pixel image light source and a right eye pixel image light source which are staggered, and the image projection module projects images to the corresponding diffusion areas according to the diffusion areas corresponding to the pupil positions of the two eyes, so that the two eyes respectively receive image pictures with different parallaxes, and a 3D stereoscopic image is generated.
The micro-mirror array is at least provided with a first diffusion area, a second diffusion area and a third diffusion area.
The micro-mirror array has at least one first vertical diffusion region.
The micro-mirror is a concave mirror, a convex mirror or a plane mirror.
The reflective diffusion sheet is provided with a plane or a curved surface, and the plane or the curved surface is provided with the array of the micro-mirrors.
The naked-eye 3D reflective diffusion sheet head-up display equipment provided by the invention utilizes the projection module to project an image light source, the images of the left eye micro mirror and the right eye micro mirror of the reflective diffusion sheet are arranged in a staggered mode, and the eyeball position tracking technology is utilized to enable the image light source of the left eye pixel to be aligned with the left eye micro mirror group on the reflective diffusion sheet and the image light source of the right eye pixel to be aligned with the right eye micro mirror group on the reflective diffusion sheet, so that the two eyes respectively receive image pictures with different parallaxes, a better 3D stereoscopic image is provided, the problem of 3D image interruption caused by the movement of the head of a driver is effectively solved, and the driving safety is further improved.
Drawings
FIG. 1 is a schematic view of JP patent No. 3526157 of the prior art.
FIG. 2 is another schematic view of JP patent No. 3526157 of the prior art.
FIG. 3 is an enlarged schematic view of an array structure of a micro-mirror according to the present invention.
FIG. 4 is a schematic size diagram of a micro-mirror according to the present invention.
FIG. 5 is an enlarged view of the micro-mirror of the present invention.
Fig. 6 is a schematic diagram (one) illustrating the first embodiment of the present invention.
Fig. 7 is a schematic diagram (two) illustrating the first embodiment of the present invention.
Fig. 8 is a schematic diagram (iii) illustrating the first embodiment of the present invention.
Fig. 9 is a schematic diagram (iv) illustrating the first embodiment of the present invention.
FIG. 10 is a schematic view of a projection angle according to a first embodiment of the present invention.
Fig. 11 is a schematic view of a second embodiment of the present invention.
Fig. 12 is a schematic diagram (one) illustrating the second embodiment of the present invention.
Fig. 13 is a schematic diagram (two) illustrating the second embodiment of the present invention.
Fig. 14 is a schematic diagram (iii) illustrating the second embodiment of the present invention.
Fig. 15 is a schematic diagram (iv) illustrating the second embodiment of the present invention.
Fig. 16 is an explanatory diagram of a horizontal diffusion region according to a second embodiment of the present invention.
Fig. 17 is a schematic illustration of a horizontal diffusion region according to a second embodiment of the present invention.
Fig. 18 is a schematic diagram (one) of a vertical diffusion region implementation of the second embodiment of the present invention.
FIG. 19 is a second embodiment of a vertical diffusion region according to the present invention.
Fig. 20 is a schematic diagram (iii) of a vertical diffusion region implementation according to a second embodiment of the present invention.
Fig. 21 is a schematic (fourth) illustration of the vertical diffusion region implementation of the second embodiment of the present invention.
Fig. 22 is a schematic (v) of the vertical diffusion region implementation of the second embodiment of the present invention.
Fig. 23 is a schematic view of a third embodiment of the present invention.
Fig. 24 is a schematic view of a fourth embodiment of the present invention.
Description of reference numerals: a-a cone-type mirror; b-a relief structure; 5-a projection module; 6-a reflective diffuser; 61-micro mirror; 610-reflection angle; 611. 612, 613, 614-micro-mirror group; 61A, 61B, 61C, 61D-micro-mirror group; 61L-left eye micro-mirror group; 61R-right eye micro-mirror group; 7-a mirror; 8-a windshield; 81-a reflective film; 9-a photographing module; e-the eye; EA-a first vertical diffusion region; EB-a second vertical diffusion region; EC-third vertical diffusion region; ED — fourth vertical diffusion region; EL-left eye; ER-right eye; e1 — first diffusion region; e2 — second diffusion region; e3 — third diffusion region; e4-fourth diffusion region; an L-image light source; LL-image light source of left eye pixel; LR-image light source for right eye pixels.
Detailed Description
As shown in fig. 3 to 10, a head-up display device of a naked-eye 3D reflective diffuser according to a first embodiment of the present invention includes:
a projection module 5 for projecting an image light source L;
a reflective diffusion sheet 6 having a plane on which an array of micro-mirrors 61 is disposed, the image light source L being directed toward the reflective diffusion sheet 6;
as shown in fig. 3, the reflective diffusion sheet 6 is an array in which a large number of micro mirrors 61 are arranged in a square arrangement or a hexagonal honeycomb arrangement.
As shown in FIG. 4, the size of each micro-mirror 61 can be, but is not limited to, 25um to 0.25mm for the embodiment.
The micro-mirror 61 can be a concave mirror, a convex mirror or a plane mirror, as shown in fig. 5, and taking an enlarged view of the micro-mirror 61 as an example, the reflection angle 610 of each mirror of the micro-mirror 61 can be directed to any direction according to the design requirement, so that the directivity of the reflective diffusion sheet 6 has a very high degree of freedom.
As shown in fig. 6, the present invention is characterized in that the array of the micro mirrors 61 is divided into a left-eye micro mirror group 61L (denoted by L in the figure) and a right-eye micro mirror group 61R (denoted by R in the figure), the left-eye micro mirror group 61L and the right-eye micro mirror group 61R are arranged in an interlaced manner corresponding to the left eye EL and the right eye ER of the user, so as to be distributed on the reflective diffusion sheet 6, the image light source L projects an interlaced parallax image of the image light source LL of a left-eye pixel and the image light source LR of a right-eye pixel, the pixel of the image light source LL of the left-eye pixel is aligned with the left-eye micro mirror group 61L, and the pixel of the image light source LR of the right-eye pixel is aligned with the right-eye micro mirror group 61R, so that the left-eye EL and the right eye ER respectively receive image frames with different parallaxes, thereby generating a 3D stereoscopic image.
As shown in fig. 7, the reflective diffusion sheet 6 may also be a curved surface on which the array of micro mirrors 61 is disposed.
As shown in fig. 8, the arrangement of the left-eye micro-mirror groups 61L (denoted by L in the figure) and the arrangement of the right-eye micro-mirror groups 61R (denoted by R in the figure) are distributed on the reflective diffusion sheet 6 in two rows at intervals.
As shown in fig. 9, the arrangement of the left-eye micro-mirror group 61L (denoted by L in the figure) and the arrangement of the right-eye micro-mirror group 61R (denoted by R in the figure) are distributed in the reflective diffusion sheet 6 in a plurality of rows at intervals.
As shown in fig. 10, the pupil distance of an adult eye is about 6.3cm to 7cm, taking an average value of 6.6cm as an example, if the width of the reflective diffusion sheet 6 is 12cm, the optical path distance from the reflective diffusion sheet 6 to the eyes E of the driver is about 150cm, and the angle of deflection required by the micro-mirrors 61 or the deflection angle of the difference between the adjacent micro-mirrors 61 can be calculated; the micro-mirror 61 on the reflective diffusion sheet 6 can be a concave mirror, a convex mirror or a flat mirror.
As shown in fig. 11 to 22, a head-up display device of a naked-eye 3D reflective diffuser according to a second embodiment of the present invention includes:
a projection module 5 for projecting an image light source L;
a reflective diffusion sheet 6 provided with an array of micro-mirrors 61, the image light source L being directed to the reflective diffusion sheet 6 (as shown in FIG. 12), the reflective diffusion sheet 6 is provided with an array of micro mirrors 61, the array of micro mirrors 61 can be divided into a plurality of micro mirror groups 611, 612, 613, 614 at different positions, each micro mirror group 611, 612, 613, 614 corresponds to a diffusion region at a different position (i.e. a first diffusion region E1, a second diffusion region E2, a third diffusion region E3 and a fourth diffusion region E4, for convenience of illustration of the correspondence relationship between the two, the micro mirror groups 611, 612, 613, 614 in fig. 12 are respectively marked with 1, 2, 3, 4, and the corresponding first diffusion region E1, a second diffusion region E2, a third diffusion region E3 and a fourth diffusion region E4 are also respectively marked with 1, 2, 3, 4, and the correspondence relationship is marked with the same number);
a camera module 9 facing the head area of the driver (i.e. human) (as shown in fig. 11), the camera module 9 being connected to the projection module 5;
the present invention is characterized in that the array of the micro mirrors 61 has at least three micro mirror groups of diffusion regions, which are respectively the micro mirror group 611 of the first diffusion region E1, the micro mirror group 612 of the second diffusion region E2, and the micro mirror group 613 of the third diffusion region E3, the photographing module 9 uses an optical eye tracking technique to obtain the positions of the pupils of the two eyes (left eye EL and right eye ER) of the driver, and the interpupillary distance width of the two eyes, the image light source L projects a parallax image in which the image light source LL of a left-eye pixel and the image light source LR of a right-eye pixel are interlaced, and the parallax image is displayed in accordance with the diffusion regions (corresponding to the first diffusion region E1, the second diffusion region E2, and the third diffusion region E3) corresponding to the pupils of both eyes, the image projection module 5 projects images to the corresponding diffusion regions, so that two eyes respectively receive image frames with different parallaxes, thereby generating a 3D image.
As shown in fig. 11, the head-up display apparatus of the naked-Eye 3D reflective diffuser further includes a reflector 7 and a windshield 8, the reflective diffuser 6 reflects the image light source L to the reflector 7, the reflector 7 reflects the image light source L to the windshield 8, and the windshield 8 reflects the image light source L to the Eye Box position of the driver's Eye E (Eye Box refers to the intersection range of the diffusion areas of the reflective diffuser 6, so long as the human Eye is in the Eye Box range, the projected image can be seen).
The reflecting mirror 7 is a concave mirror, a curved mirror or a plane mirror; the reflector 7 is a curved mirror, which can compensate the effect of the free curved surface of the windshield 8; the reflecting mirror 7 is a concave mirror, and the virtual image of the concave mirror is used for imaging and amplifying, and the distance between the virtual images can be increased at the same ratio.
The windshield 8 is provided with a reflective film 81 having a semi-transparent and semi-reflective effect to enhance the reflectivity of the image light source L.
The micro mirror groups arranged in the array of the micro mirrors 61 are not limited to three, for example, there are four corresponding micro mirror groups in the diffusion regions at four positions, wherein the array of the micro mirrors 61 has the micro mirror group 611 corresponding to the first diffusion region E1, the micro mirror group 612 corresponding to the second diffusion region E2, the micro mirror group 613 corresponding to the third diffusion region E3, and the micro mirror group 614 corresponding to the fourth diffusion region E4.
As shown in fig. 13, when the pupil positions of both eyes (left eye EL and right eye ER) of the user fall in the first diffusion area E1 and the second diffusion area E2, respectively, the projection module 5 projects a left-eye image pixel for the array of the micro-mirror group 611 of the first diffusion area E1 and projects a right-eye image pixel for the array of the micro-mirror group 612 of the second diffusion area E2, so that the user can see naked-eye 3D images.
As shown in fig. 14, when the head of the driver moves to the right, the pupil positions of both eyes (the left eye EL and the right eye ER) are respectively located in the second diffusion area E2 and the third diffusion area E3, the projection module 5 projects an image light source LL of a left-eye pixel for the array of the micro mirror group 612 of the second diffusion area E2, and projects an image light source LR of a right-eye pixel for the array of the micro mirror group 613 of the third diffusion area E3, so that the driver can still see the 3D image.
As shown in fig. 15, by analogy, when the positions of the pupils of the two eyes (the left eye EL and the right eye ER) of the driver move to the third diffusion area E3 and the fourth diffusion area E4, the projection module 5 projects an image light source LL of a left-eye pixel for the array of the micro-mirror group 613 of the third diffusion area E3 and projects an image light source LR of a right-eye pixel for the array of the micro-mirror group 614 of the fourth diffusion area E4, so that the driver can still view the 3D image without interruption.
As shown in fig. 16, since the interpupillary distances of each person are different, in order to avoid the problem that the 3D image is disabled when the user moves the head horizontally, the diffusion areas may partially overlap, the width of the overlapping area is smaller than the minimum interpupillary distance of the human eye, and the width of the non-overlapping area is also smaller than the minimum interpupillary distance of the human eye.
As shown in fig. 17, if the interpupillary distance of the driver is smaller than the width of the respective diffusion area, when the head of the driver moves horizontally, the driver moves from left to right or from right to left, in this case, the first diffusion area E1, the second diffusion area E2, the third diffusion area E3 and the fourth diffusion area E4 are all horizontally-oriented diffusion areas, when the pupil positions of the left eye EL and the right eye ER at the first time (please refer to the left diagram of fig. 17, and the corresponding diagram is marked by 1, 2, 3 and 4), respectively, fall in the first diffusion area E1 and the second diffusion area E2, but the first diffusion area E1 and the second diffusion area E2 partially overlap, the projection module 5 projects a light source image of a left eye pixel for the array of the first diffusion area E1 micro-mirror group 611 and projects a light source image of a right eye LR of the micro-mirror group LL of the second diffusion area E2, the driver can normally see the 3D image.
Next, at a next time (see the middle diagram of fig. 17), the pupil position of the left eye EL is located at the overlapping position of the first diffusion area E1 and the second diffusion area E2, the pupil position of the right eye ER is located at the overlapping position of the second diffusion area E2 and the third diffusion area E3, the projection module 5 projects an image light source LL of a left eye pixel to the array of the micro-mirror group 611 of the first diffusion area E1, but does not project an image to the array of the micro-mirror group 612 of the second diffusion area E2, but projects an image light source LR of a right eye image pixel to the array of the micro-mirror group 613 of the third diffusion area E3, so that the driver P can still normally see a 3D image.
At a next time (see the right diagram of FIG. 17), the left eye EL is still in the second diffusion region E2, and the right eye ER is in the third diffusion region E3; the projection module 5 does not project an image to the array of the micro mirror group 611 of the first diffusion area E1, but projects an image light source LL of left eye pixels to the array of the micro mirror group 612 of the second diffusion area E2, and projects an image light source LR of right eye pixels to the array of the micro mirror group 613 of the third diffusion area E3, so that the driver can still normally see 3D images.
From the illustration of the horizontal diffusion area in fig. 17, it can be seen that the driver does not interrupt the 3D image while moving the head horizontally.
As shown in fig. 18, since the heights of the drivers are not consistent and the drivers may move their heads up and down during use, in order to avoid the problem that the drivers may interrupt the 3D image when moving their heads, the diffusion regions may be distributed in a similar horizontal direction, or may be distributed in different vertical directions, for example, there are four corresponding micro-mirror groups in the four vertical diffusion regions, for convenience of illustration of the correspondence relationship between the two, the micro-mirror groups 61A, 61B, 61C, and 61D in fig. 18 are respectively represented by A, B, C, D, and the corresponding first vertical diffusion region EA, a second vertical diffusion region EB, a third vertical diffusion region EC, and a fourth vertical diffusion region ED are respectively represented by A, B, C, D, and the corresponding filling relationships are represented by the same letters; as shown in fig. 19, when the head of the driver moves from the lower position to the higher position, the pupil position of the eyes E of the driver is located in the first vertical diffusion area EA for the first time, and the projection module 5 projects the image light source LL of the left-eye image pixel and the image light source LR of the right-eye image pixel to the micro-mirror group 61A of the first vertical diffusion area EA; as shown in fig. 20, when the pupil position of the driver's eye E moves to the second vertical diffusion area EB, the projection module 5 does not project the image onto the micro-mirror group 61A of the first vertical diffusion area EA, and instead projects the image light source LL of the left-eye image pixel and the image light source LR of the right-eye image pixel onto the micro-mirror group 61B of the second vertical diffusion area EB.
As shown in fig. 21, when the pupil position of the driver's eye E moves to the third vertical diffusion area EC, the projection module 5 does not project the image onto the micro mirror group 61B of the second vertical diffusion area EB, and instead projects the image light source LL of the left-eye image pixel and the image light source LR of the right-eye image pixel onto the micro mirror group 61C of the third vertical diffusion area EC.
As shown in fig. 22, when the positions of the pupils of the two eyes of the driver move to the fourth vertical diffusion area ED, the projection module 5 does not project the image onto the micro-mirror group 61C of the third vertical diffusion area EC, and instead projects the image light source LL of the left-eye image pixel and the image light source LR of the right-eye image pixel onto the micro-mirror group 61D of the fourth vertical diffusion area ED.
From the illustration of the diffusion region in the vertical direction, it can be known that the 3D image is not interrupted while the driver moves the head vertically.
As shown in fig. 23, a head-up display apparatus of a naked-eye 3D reflective diffuser according to a third embodiment of the present invention includes:
a projection module 5 for projecting an image light source L;
a reflective diffusion sheet 6, the image light source L is projected to the reflective diffusion sheet 6;
a reflector 7, the reflective diffusion sheet 6 reflects the image light source L to the reflector 7, the reflector 7 reflects the image light source L to the Eye Box position of the driver's Eye E (Eye Box refers to the intersection range of the diffusion areas of the reflective diffusion sheet 6, as long as the human Eye is in the Eye Box range, the projected image can be seen).
The reflecting mirror 7 is a concave mirror, a curved mirror or a plane mirror; the reflector 7 is a curved mirror, which can compensate the effect of the free curved surface of the windshield 8; the reflecting mirror 7 is a concave mirror, and the virtual image of the concave mirror is used for imaging and amplifying, and the distance between the virtual images can be increased at the same ratio.
As shown in fig. 24, a head-up display apparatus of a naked-eye 3D reflective diffuser according to a fourth embodiment of the present invention includes:
a projection module 5 for projecting an image light source L;
a reflective diffusion sheet 6, the image light source L is projected to the reflective diffusion sheet 6;
a reflector 7, the reflective diffusion sheet 6 reflects the image light source L to the reflector 7;
a windshield 8, the reflector 7 reflects the image light source to the windshield 8, and the windshield 8 reflects the image light source L to the Eye Box (Eye Box) position of the driver.
The reflecting mirror 7 is a concave mirror, a curved mirror or a plane mirror; the reflector 7 is a curved mirror, which can compensate the effect of the free curved surface of the windshield 8; the reflecting mirror 7 is a concave mirror, and the virtual image of the concave mirror is used for imaging and amplifying, and the distance between the virtual images can be increased at the same ratio.
The windshield 8 is provided with a reflective film 81 having a semi-transparent and semi-reflective effect to enhance the reflectivity of the image light source L.
The invention provides a naked-eye 3D reflective diffusion sheet head-up display device, which utilizes a projection module to project an image light source, the images of left eye micro mirrors and right eye micro mirrors of the reflective diffusion sheet are arranged in a staggered way, and an eyeball position tracking technology is utilized to ensure that the image light source of left eye pixels is aligned with a left eye micro mirror group on the reflective diffusion sheet, the image light source of right eye pixels is aligned with a right eye micro mirror group on the reflective diffusion sheet, so that two eyes respectively receive image pictures with different parallaxes, thereby generating a 3D stereoscopic image.
In summary, the naked-eye 3D reflective diffusion sheet head-up display device provided by the present invention can solve the problem of 3D image interruption caused by the head movement of the driver, thereby improving driving safety.
The embodiments of the present invention are provided in the summary of the invention only for convenience of illustration, and the invention is not limited to the embodiments in a narrow sense, and various modifications can be made without departing from the spirit of the invention.
Claims (20)
1. A naked-eye 3D reflective diffusion sheet head-up display device includes:
a projection module for projecting an image light source;
a reflective diffusion sheet having an array of micro-mirrors, the image light source being directed toward the reflective diffusion sheet;
the micro-mirror array is characterized in that the micro-mirror array is divided into a left-eye micro-mirror group and a right-eye micro-mirror group, the left-eye micro-mirror group and the right-eye micro-mirror group are arranged in a staggered mode and correspond to the left eye and the right eye of a driver and are distributed on the reflective diffusion sheet in such a mode, the image light source projects a parallax image with a left-eye pixel image light source and a right-eye pixel image light source in a staggered mode, the left-eye pixel image light source is aligned with the left-eye micro-mirror group on the reflective diffusion sheet, the right-eye pixel image light source is aligned with the right-eye micro-mirror group on the reflective diffusion sheet, and therefore the two eyes receive image pictures with different parallaxes respectively to generate a 3D image.
2. The naked 3D reflective diffuser head-up display apparatus of claim 1, wherein the micro-mirror is a concave mirror or a convex mirror or a flat mirror.
3. The naked-eye 3D reflective diffuser head-up display apparatus of claim 1, wherein the left-eye micro-mirror array and the right-eye micro-mirror array are arranged in two rows at intervals of the reflective diffuser.
4. The naked-eye 3D reflective diffuser head-up display apparatus of claim 1, wherein the left-eye micro-mirror cluster array and the right-eye micro-mirror cluster array are arranged in a plurality of rows at intervals on the reflective diffuser.
5. The naked 3D reflective diffuser head-up display device of claim 1, wherein the reflective diffuser has a flat surface or a curved surface with the array of micro mirrors disposed thereon.
6. The naked eye 3D reflective diffuser head-up display apparatus of claim 1, further comprising a mirror, the reflective diffuser reflecting the image light source to the mirror, the mirror reflecting the image light source to a driver's eye box position.
7. The naked eye 3D reflective diffuser head-up display apparatus of claim 1, further comprising a mirror and a windshield, the reflective diffuser reflecting the image light source to the mirror, the mirror reflecting the image light source to the windshield, the windshield reflecting the image light source to a driver's eye-box position.
8. The naked 3D reflective diffuser head-up display device of claim 7, wherein the reflector is a curved mirror to compensate for the effect of the windshield free-form surface.
9. The naked 3D reflective diffuser head-up display apparatus of claim 7, wherein the reflector is a concave mirror to reflect and magnify the image.
10. The naked 3D reflective diffuser head-up display device of claim 7, wherein the windshield is provided with a reflective film having a semi-transparent and semi-reflective effect.
11. A naked-eye 3D reflective diffusion sheet head-up display device, comprising:
a projection module for projecting an image light source;
a reflective diffusion sheet having an array of micro-mirrors, the image light source being directed toward the reflective diffusion sheet;
the camera module faces to the head area of the driver and is connected with the projection module;
the micro-mirror array is at least provided with a micro-mirror group with three diffusion areas, the photographing module obtains the positions of the two eyes and the width of the pupil distance of the two eyes of the driver by an optical eyeball tracking technology, the image light source projects a parallax image with a left eye pixel and a right eye pixel staggered with each other, and the image projection module projects images to the corresponding diffusion areas according to the diffusion areas corresponding to the positions of the pupils of the two eyes, so that the two eyes respectively receive image pictures with different parallaxes, and a 3D image is generated.
12. The naked 3D reflective diffuser heads up display apparatus of claim 11, wherein the array of micro-mirrors has at least a first diffusion region, a second diffusion region, and a third diffusion region.
13. The bare 3D reflective diffuser head-up display apparatus of claim 11, wherein the array of micro-mirrors has at least a first vertical diffusion region.
14. The naked 3D reflective diffuser head-up display device of claim 11, wherein the micro-mirror is a concave mirror or a convex mirror or a flat mirror.
15. The naked 3D reflective diffuser head-up display device of claim 11, wherein the reflective diffuser has a flat surface or a curved surface with the array of micro mirrors disposed thereon.
16. The naked eye 3D reflective diffuser head-up display apparatus of claim 11, further comprising a mirror, the reflective diffuser reflecting the image light source to the mirror, the mirror reflecting the image light source to a driver's eye box position.
17. The naked eye 3D reflective diffuser head-up display apparatus of claim 11, further comprising a mirror and a windshield, the reflective diffuser reflecting the image light source to the mirror, the mirror reflecting the image light source to the windshield, the windshield reflecting the image light source to a driver's eye-box position.
18. The naked 3D reflective diffuser head-up display device of claim 17, wherein the reflector is a concave mirror to reflect and magnify the image.
19. The bare 3D reflective diffuser head-up display apparatus of claim 17, wherein the reflector is a curved mirror to compensate for the effect of the free-form surface of the windshield.
20. The naked 3D reflective diffuser head-up display device of claim 17, wherein the windshield is provided with a reflective film having a semi-transparent and semi-reflective effect.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910668585.7A CN112285927A (en) | 2019-07-23 | 2019-07-23 | Naked-eye 3D reflective diffusion sheet head-up display device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910668585.7A CN112285927A (en) | 2019-07-23 | 2019-07-23 | Naked-eye 3D reflective diffusion sheet head-up display device |
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| CN112285927A true CN112285927A (en) | 2021-01-29 |
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| CN201910668585.7A Withdrawn CN112285927A (en) | 2019-07-23 | 2019-07-23 | Naked-eye 3D reflective diffusion sheet head-up display device |
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