CN210072204U - Head-up display device for vehicle - Google Patents
Head-up display device for vehicle Download PDFInfo
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- CN210072204U CN210072204U CN201920390523.XU CN201920390523U CN210072204U CN 210072204 U CN210072204 U CN 210072204U CN 201920390523 U CN201920390523 U CN 201920390523U CN 210072204 U CN210072204 U CN 210072204U
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Abstract
The utility model provides an automobile-used new line display device, a serial communication port, include: the display screen is arranged at the other end of the shell, which is far away from the light source component, the first total reflection lens and the second total reflection lens are arranged between the light source component and the display screen, the light incident surface of the second total reflection lens is a light homogenizing lens, the light homogenizing lens is a fly-eye array formed by a plurality of convex lens units, and the light emergent surface of the second total reflection lens is a convex lens; the utility model provides a vehicle head-up display device, the second total reflection lens combines the optical functions of fly eye lens and convex lens, which can reduce the number of lenses and simplify the structure of the device; therefore, optical loss is reduced, the light utilization rate is improved, the LED display screen is also suitable for a display screen with a larger size, the increase of display information and the increase of display content are facilitated, and user experience is improved.
Description
Technical Field
The utility model relates to a new line shows the field, in particular to automobile-used new line display device.
Background
head-Up Display (Heads Up Display), also called head-Up Display system, can project important driving information such as speed per hour, navigation and the like onto a windshield in front of a driver, so that the driver can see the important driving information such as speed per hour, navigation and the like without lowering head or turning head as much as possible, convenience is provided for the driver, and more importantly, the driving safety can be improved.
The existing head-up display devices all comprise an illumination system and an imaging system, generally, the size of an optical visual angle of the illumination system is relatively fixed, in order to enable the illumination system and the imaging system to be matched with each other, the optical length of the illumination system needs to be long enough, namely, a relatively large distance needs to be arranged between a light source and a display screen, and the head-up display device has a relatively large volume and occupies a limited space in a carriage; however, if the distance between the light source and the display screen is simply reduced to reduce the size of the device, the size of the image formed in the imaging system is small, the display content is less, and the viewing comfort of the driver is affected.
In view of the technical problem that prior art exists above, the utility model aims at developing a not only compact structure, small can increase the angle of vision again, improve the automobile-used new line display device of display effect.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem of prior art, the utility model aims to provide an automobile-used new line display device.
In order to solve the above problem, the utility model provides an automobile-used new line display device, include: the display screen comprises a shell, a light source assembly, a first total reflection lens, a second total reflection lens and a display screen, wherein one end of the shell is provided with a lamp panel, the light source assembly is arranged on the lamp panel, the display screen is arranged at the position, away from the shell, of the other end of the light source assembly, the first total reflection lens and the second total reflection lens are arranged between the light source assembly and the display screen, the light inlet face of the second total reflection lens is an even light lens, the even light lens is a fly-eye array formed by a plurality of convex lens units, and the light outlet face of the second total reflection lens is a convex lens.
Specifically, the curvatures of each convex lens unit in the dodging lens are the same, the intervals between two adjacent convex lens units in the dodging lens are the same, and the curvatures of the convex lenses in the longitudinal axis direction and the transverse axis direction are different.
Specifically, the light source subassembly includes a plurality of lamp pearls that are the array and arrange, the lamp pearl passes through welded connection and is in on the lamp plate.
Preferably, the first total reflection lens includes a light incident surface, a total reflection cavity and a light emergent surface, the light incident surface of the first total reflection lens is a planar lens, the light emergent surface of the first total reflection lens includes a plurality of convex lenses, and the convex lenses are arranged in an array.
Furthermore, each convex lens is corresponding to a lamp bead of the light source component, and each lamp bead is arranged at the center of the corresponding convex lens.
Specifically, a light homogenizing sheet is further arranged on one side, close to the light source assembly, of the display screen, and the light homogenizing sheet is used for carrying out secondary light homogenizing on light emitted from the light emitting surface of the second total reflection lens.
Preferably, one side of the lamp panel, which is far away from the light source assembly, is further provided with a heat conduction material, and the heat conduction material is made of heat conduction silica gel and/or nano carbon copper foil.
Further, the vehicle head-up display device is located on one side of the heat conduction material, and is further provided with heat dissipation fins, and the shell is further provided with heat dissipation holes.
Preferably, still be equipped with the connecting piece on the lamp plate, the connecting piece sets up between two lamp pearls that the light source subassembly is adjacent, first total reflection lens with the lamp plate passes through the connecting piece is connected.
Further, the shell still is equipped with the buckle, the shell of telling with the lamp plate passes through the buckle is connected.
Because of the technical scheme, the utility model discloses following beneficial effect has:
1) the utility model provides a pair of automobile-used new line display device adopts second total reflection lens has merged fly's eye lens and convex lens's function, therefore has reduced lens quantity, has simplified the device structure and has reduced the device size.
2) The utility model provides a pair of automobile-used new line display device has reduced lens quantity, has shortened light propagation distance and has reduced optical loss, has improved the utilization ratio of light.
3) The utility model provides a pair of automobile-used new line display device can improve the formation of image angle of vision to can be applicable to the great display screen of size, for example 1.8 cun, 2.6 cun LCD screen and so on, be favorable to the increase automobile-used new line display device shows the size and the increase of information the content of demonstration improves driver and watches the comfort level, improves user experience.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiment 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 invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of a vehicle head-up display device according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of a vehicle head-up display device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a first total reflection lens of the head-up display device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a second total reflection lens of the head-up display device according to an embodiment of the present invention.
In the figure: 10-shell, 101-lamp panel, 1011-connecting piece, 102-buckle, 20-light source component, 30-first total reflection lens, 301-plane lens, 302-convex lens, 40-second total reflection lens, 401-light homogenizing lens, 4011-convex lens unit, 402-convex lens, 50-display screen, 60-light homogenizing sheet, 70-heat conducting material and 80-radiating fin.
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 efforts belong to the protection scope of the present invention.
It should be noted that, in the claims, the description and the drawings of the present invention, the terms "first" and "second" are only used for distinguishing similar objects, but not for describing a specific order or sequence, and should not be construed as limiting the protection scope of the present invention.
Example 1
Referring to fig. 1 to 4, the present embodiment provides a head-up display device for a vehicle, including: the display panel comprises a shell 10, a light source assembly 20, a first total reflection lens 30, a second total reflection lens 40 and a display screen 50, wherein a lamp panel 101 is arranged at one end of the shell 10, the light source assembly 20 is arranged on the lamp panel 101, the display screen 50 is arranged at the other end, far away from the light source assembly 20, of the shell 10, the first total reflection lens 30 and the second total reflection lens 40 are both arranged between the light source assembly 10 and the display screen 50, the light incident surface of the second total reflection lens 40 is a light homogenizing lens 401, the light homogenizing lens 401 is a fly-eye array formed by a plurality of convex lens units 4011, and the light emergent surface of the second total reflection lens 40 is a convex lens 402; the housing 10, the light source assembly 20, the first total reflection lens 30 and the second total reflection lens 40 form a backlight system of the vehicle head-up display device; the first total reflection lens 30 is disposed at one end of the housing 10 close to the light source assembly 20, and the second total reflection lens 40 is disposed between the first total reflection lens 30 and the display screen 50, that is, light emitted from the light source assembly 20 sequentially passes through the first total reflection lens 30 and the second total reflection lens 40 and then reaches the display screen 50; preferably, the display screen 50 is an LCD liquid crystal display screen, but the display screen 50 may also be other display screens.
The curvatures of each convex lens unit 4011 in the dodging lens 401 are the same, the distances between two connected convex lens units 4011 in the dodging lens 401 are the same, and the curvatures of the convex lens 402 in the longitudinal axis direction and the transverse axis direction are different; the convex lens units 4011 of the dodging lens 401 arranged in an array can divide light emitted from the light emitting surface of the first total reflection lens 30 into a plurality of small areas which are approximately uniformly distributed, light rays of each small area respectively enter the corresponding convex lens unit 4011, the light rays are further irradiated to the convex lens 402 after being primarily dodged by the convex lens units 4011, the convex lens 402 can amplify the light beam angle, and the light with the amplified light beam angle is emitted and then used as backlight of the display screen 50. Convex lens 402's camber with display screen 50's size cooperatees, through convex lens 402 carry on the light irradiation area after the light beam angle enlargies can with display screen 50's display area size cooperatees, consequently the embodiment of the utility model provides a vehicle new line display device can be applicable to the size great display screen 50, including but not limited to 1.8 cun and 2.6 cun display screen 50.
The light source assembly 20 comprises a plurality of lamp beads arranged in an array, and the lamp beads are connected to the lamp panel 101 through welding; preferably, the lamp panel 101 is an aluminum substrate, and the aluminum substrate has a high heat dissipation property; the lamp beads can be light-emitting diode lamp beads, can also be laser diode lamp beads, and can also comprise other light-emitting elements; the light output from the light source assembly 20 may be parallel light or divergent light.
The first total reflection lens 30 comprises a light incident surface, a total reflection cavity and a light emergent surface, the light incident surface of the first total reflection lens 30 is a planar lens 301, the light emergent surface of the first total reflection lens 30 comprises a plurality of convex lenses 302, and the convex lenses 302 are arranged in an array; the total reflection cavity is connected with the light incident surface 301 and the light emitting surface 302; preferably, the planar lens 301 is parallel to the lamp panel 101, the planar lens 301 enables light emitted from the light source assembly 20 to be totally incident into the total reflection cavity of the first total reflection lens 30, and light rays are diverged by the convex lens 302 to form light approximately parallel to the light incident surface planar lens 301 of the first total reflection lens 30.
Each convex lens 302 corresponds to a lamp bead of one light source assembly 20, and the lamp bead is arranged at the center of the corresponding convex lens 302; the arrangement of the convex lenses 302 corresponds to that of the light source assembly 20, that is, one convex lens 302 is opposite to any one light bead in the light source assembly 20; and preferably, each of the lamp beads is located at the middle position of the convex lens 302 corresponding to the lamp bead.
A light homogenizing sheet 60 is further disposed on one side of the display screen 50 close to the light source assembly 20, and the light homogenizing sheet 60 is used for performing secondary light homogenizing on light emitted from the light emitting surface of the second total reflection lens 40; that is, before the light emitted from the light source assembly 20 sequentially passes through the first total reflection lens 30 and the second total reflection lens 40 and reaches the display screen 50, the light passes through the dodging lens 401 for primary dodging, and then passes through the dodging sheet 60 for secondary dodging, so that the brightness of the light finally reaching the display screen 50 is more uniform.
The lamp panel 101 is further provided with a heat conducting material 70 on the side away from the light source assembly 20, and the heat conducting material 70 is made of heat conducting silica gel and/or nano carbon copper foil; as is well known, the light source assembly 20 inevitably generates a certain amount of heat during operation, and the heat conduction coefficient of the heat conduction material 70 is high, so that the heat generated by the light source assembly 20 can be transferred along the direction of the lamp panel 101, that is, the heat generated by the light source assembly 20 can be dissipated through the heat conduction material 70, and thus the heat cannot be transferred along the direction of the first full lens 30, the temperature inside the head-up display device for the vehicle is reduced, and the service life of each component inside the housing 10 is prolonged. Of course, the heat conductive material 70 may be made of other materials with high thermal conductivity.
The lamp panel 101 is further provided with a connecting piece 1011, the connecting piece 1011 is arranged between two adjacent lamp beads of the light source assembly 20, and the first total reflection lens 30 is connected with the lamp panel 101 through the connecting piece 1011; the connecting piece 1011 makes the distance between the first total reflection lens 30 and the lamp panel 101 the same, so that the loss of the secondary light energy can be reduced.
The housing 10 is further provided with a buckle 102, and the housing 10 is connected with the lamp panel 101 through the buckle 102; further, the housing 10 is also provided with mounting holes so that the head-up display apparatus for vehicles can be mounted in a vehicle by means of bolts, screws, or the like.
The embodiment of the utility model provides a vehicle new line display device, wherein the second total reflection lens 40 has merged the optical function of fly's eye lens and convex lens, has reduced lens quantity, has simplified the device structure and has reduced the device size, can be less the limited space of the interior of car that occupies; therefore, optical loss can be reduced, the utilization rate of light is improved, the LED display screen with the larger size can be suitable for the display screen, the increase of display information and the increase of display content are facilitated, the watching comfort of a driver is improved, and the user experience is improved.
Example 2, a preferred example of example 1
The difference from example 1 is that: preferably, the vehicle head-up display device is further provided with a heat dissipation fin 80 at one side of the heat conductive material 70, and the housing 10 is further provided with a heat dissipation hole; the heat dissipation fins 80 and the heat dissipation holes formed in the housing 10 can further accelerate the dissipation of the excess heat, thereby preventing the device from overheating.
An embodiment of the utility model provides an automobile-used new line display device, through heat conduction material 70, radiating fin 80 with the louvre makes automobile-used new line display device has good cooling system, prevents the inside overheat of automobile-used new line display device has prolonged the life of each inside part of device.
The foregoing is merely a preferred embodiment of the invention and is not intended to limit the invention, as will be apparent to those skilled in the art, the invention is not limited to the details of the foregoing exemplary embodiment, but rather is capable of being embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
The foregoing description has disclosed fully the embodiments of the present invention. It should be noted that those skilled in the art can make modifications to the embodiments of the present invention without departing from the scope of the claims of the present invention. Accordingly, the scope of the claims of the present invention is not to be limited to the specific embodiments described above.
Claims (10)
1. A head-up display device for a vehicle, comprising: shell (10), light source subassembly (20), first total reflection lens (30), second total reflection lens (40) and display screen (50), the one end of shell (10) is provided with lamp plate (101), light source subassembly (20) set up on lamp plate (101), display screen (50) set up shell (10) are kept away from the other end of light source subassembly (20), first total reflection lens (30) and second total reflection lens (40) all set up between light source subassembly (20) and display screen (50), the income plain noodles of second total reflection lens (40) is dodging lens (401), dodging lens (401) are the compound eye array that a plurality of convex lens units (4011) formed, the play plain noodles of second total reflection lens (40) is convex lens (402).
2. The vehicle head-up display device according to claim 1, wherein curvatures of each convex lens unit (4011) in the dodging lens (401) are the same, pitches of two adjacent convex lens units (4011) in the dodging lens (401) are the same, and curvatures of the convex lens (402) in a longitudinal axis direction and a transverse axis direction are different.
3. The vehicle head-up display device according to claim 1, wherein the light source assembly (20) comprises a plurality of lamp beads arranged in an array, and the lamp beads are connected to the lamp panel (101) through welding.
4. The head-up display device for vehicle according to claim 1, wherein the first total reflection lens (30) comprises an incident surface, a total reflection cavity and an emergent surface, the incident surface of the first total reflection lens (30) is a planar lens (301), the emergent surface of the first total reflection lens (30) comprises a plurality of convex lenses (302), and the plurality of convex lenses (302) are arranged in an array.
5. The head-up display device of claim 4, wherein each convex lens (302) corresponds to a lamp bead of the light source assembly (20), and the lamp bead is disposed at a center of the corresponding convex lens (302).
6. The vehicle head-up display device according to claim 1, wherein a light homogenizing sheet (60) is further disposed on a side of the display screen (50) close to the light source assembly (20), and the light homogenizing sheet (60) is configured to homogenize light emitted from the light emitting surface of the second total reflection lens (40) for the second time.
7. The vehicle head-up display device according to claim 1, wherein a side of the lamp panel (101) away from the light source assembly (20) is further provided with a heat conducting material (70), and the heat conducting material (70) is made of heat conducting silica gel and/or nano carbon copper foil.
8. The vehicle head-up display device according to claim 7, wherein a heat dissipation fin (80) is further disposed on one side of the heat conductive material (70), and a heat dissipation hole is further disposed on the housing (10).
9. The vehicle head-up display device according to claim 1, wherein a connecting member (1011) is further disposed on the lamp panel (101), the connecting member (1011) is disposed between two adjacent lamp beads of the light source assembly (20), and the first total reflection lens (30) is connected to the lamp panel (101) through the connecting member (1011).
10. The vehicle head-up display device according to claim 1, wherein the housing (10) further comprises a buckle (102), and the housing (10) is connected to the lamp panel (101) through the buckle (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390523.XU CN210072204U (en) | 2019-03-26 | 2019-03-26 | Head-up display device for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920390523.XU CN210072204U (en) | 2019-03-26 | 2019-03-26 | Head-up display device for vehicle |
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| Publication Number | Publication Date |
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| CN210072204U true CN210072204U (en) | 2020-02-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920390523.XU Active CN210072204U (en) | 2019-03-26 | 2019-03-26 | Head-up display device for vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320484A (en) * | 2021-06-30 | 2021-08-31 | 浙江吉利控股集团有限公司 | Car tye assembly and car |
| CN115903236A (en) * | 2022-10-19 | 2023-04-04 | 江苏泽景汽车电子股份有限公司 | Head-up display |
-
2019
- 2019-03-26 CN CN201920390523.XU patent/CN210072204U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113320484A (en) * | 2021-06-30 | 2021-08-31 | 浙江吉利控股集团有限公司 | Car tye assembly and car |
| CN113320484B (en) * | 2021-06-30 | 2024-04-12 | 浙江吉利控股集团有限公司 | Automobile flow channel assembly and automobile |
| CN115903236A (en) * | 2022-10-19 | 2023-04-04 | 江苏泽景汽车电子股份有限公司 | Head-up display |
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