CN115903236A

CN115903236A - Head-up display

Info

Publication number: CN115903236A
Application number: CN202211282759.4A
Authority: CN
Inventors: 张涛; 程亮; 张永波; 吕涛
Original assignee: Jiangsu Zejing Automobile Electronic Co ltd
Current assignee: Jiangsu Zejing Automobile Electronic Co ltd
Priority date: 2022-10-19
Filing date: 2022-10-19
Publication date: 2023-04-04

Abstract

The present disclosure relates to a head-up display, comprising: the supporting assembly comprises a mounting shell, wherein the mounting shell is provided with a first accommodating cavity, and the first accommodating cavity is provided with a first opening and a second opening which are oppositely arranged; the light source assembly is arranged close to the first opening and connected with the mounting shell, and is provided with a light emitting side which is positioned on one side, close to the second opening, of the light source assembly; the light guide assembly is positioned in the first accommodating cavity and is positioned on the light emitting side of the light source assembly, and the light guide assembly is connected with the inner side wall of the mounting shell; the display assembly is located on one side, away from the light source assembly, of the light guide assembly and connected with the mounting shell, the display assembly is provided with a display side, and the display side is located on one side, away from the first opening, of the display assembly. According to the head-up display, each component is directly assembled with the supporting component, so that the assembling process can be simplified, and the assembling precision can be improved.

Description

Head-up display

Technical Field

The present disclosure relates to the field of head-up display technologies, and in particular, to a head-up display.

Background

The new technology of head-up display is gradually becoming a main development direction of each host factory. The head-up display is also called head-up display, and can project important driving information such as speed per hour, navigation and the like onto a windshield in front of a driver. Thus, the driver can see important driving information such as speed per hour, navigation and the like without lowering or turning the head.

However, currently, in the process of manufacturing the head-up display, the optical-mechanical system and the support structure need to be separately produced. Therefore, each component in the optical-mechanical system needs to be assembled once, and then the assembled optical-mechanical system is assembled with the supporting structure again, so that the problems of complex production and assembly work and poor assembly precision are caused.

It is to be noted that the information disclosed in the above background section is only for enhancement of understanding of the background of the present disclosure, and thus may include information that does not constitute prior art known to those of ordinary skill in the art.

Disclosure of Invention

The present disclosure is directed to overcoming the disadvantages of the related art as described above, and to provide a head-up display in which each component is directly assembled with a support component, whereby an assembly process can be simplified and assembly accuracy can be improved.

The present disclosure provides a heads up display, comprising:

the supporting assembly comprises a mounting shell, wherein the mounting shell is provided with a first accommodating cavity, and the first accommodating cavity is provided with a first opening and a second opening which are oppositely arranged;

the light source assembly is arranged close to the first opening and connected with the mounting shell, and is provided with a light emitting side which is positioned on one side, close to the second opening, of the light source assembly;

the light guide assembly is positioned in the first accommodating cavity and is positioned on the light emitting side of the light source assembly, and the light guide assembly is connected with the inner side wall of the mounting shell;

the display assembly is located the leaded light subassembly is kept away from one side of light source subassembly, and with the installation shell is connected, the display assembly has the demonstration side, the demonstration side is located the display assembly is kept away from one side of first opening.

In an exemplary embodiment of the present disclosure, the mounting case includes:

the bearing platform is connected with the inner wall of the mounting shell and is positioned on one side, away from the light source component, of the light guide component, and the bearing platform is provided with a first light hole;

the display assembly is arranged on one side, far away from the light source assembly, of the bearing platform.

In an exemplary embodiment of the present disclosure, the mounting housing includes at least a first sidewall and a second sidewall disposed opposite to each other, the first receiving cavity is located between the first sidewall and the second sidewall;

the mounting case further includes:

the first convex part and the second convex part are positioned on one side of the bearing platform, which is far away from the light source assembly; the first convex part is positioned on one side of the first side wall close to the second side wall and extends towards the direction close to the second side wall; the second convex part is positioned on one side of the second side wall close to the first side wall and extends towards the direction close to the first side wall;

the display assembly includes:

a display screen positioned between the first protrusion and the second protrusion.

In an exemplary embodiment of the present disclosure, the mounting case further includes: a first connection part located at an outer side wall of the mounting case;

the display assembly includes: the light shield is located on one side, far away from the light source assembly, of the display screen, the light shield is provided with a second connecting portion and a second light transmitting hole, the second connecting portion is connected with the first connecting portion, and light emitted by the display screen can penetrate through the second light transmitting hole.

In an exemplary embodiment of the present disclosure, an inner wall of the mounting case is provided with a first sliding groove extending in a first direction; the light guide assembly includes:

the supporting shell is provided with a second accommodating cavity, and the outer side wall of the supporting shell is provided with a first sliding block which can be positioned in the first sliding groove, so that the supporting shell is limited in the mounting shell;

the micro lens assembly is arranged in the second accommodating cavity and is connected with the supporting shell;

the convex lens component is arranged in the second accommodating cavity and is positioned on one side of the micro lens component close to the light source component, and the convex lens component is connected with the supporting shell;

wherein the first direction is a direction in which the light source assembly is directed toward the display assembly.

In an exemplary embodiment of the present disclosure, a side of the support case away from the light source assembly is provided with a first limiting groove, and the first limiting groove extends in a direction opposite to the first direction;

the micro lens assembly includes: the first limiting plate is connected with the micro lens and extends towards the direction far away from the micro lens, and the first limiting plate is located in the first limiting groove, so that the micro lens is limited on the supporting shell.

In an exemplary embodiment of the present disclosure, the support case is further provided with a first guide post, which can be located in the first limit groove and extend in the first direction;

the micro-lens assembly further comprises: the first guide groove is positioned at one end, away from the micro lens, of the first limiting plate, and at least part of the first guide column can be positioned in the first guide groove.

In an exemplary embodiment of the present disclosure, a fifth limiting groove is further disposed on a side of the support housing close to the light source assembly, and the fifth limiting groove extends along the first direction;

the convex lens assembly includes: the fifth limiting plate is located in the fifth limiting groove, so that the convex lens is limited in the supporting shell.

In an exemplary embodiment of the present disclosure, the mounting case further includes: the first fixing part is positioned on one side, far away from the display component, of the mounting shell;

the light source assembly includes: the light-emitting source is provided with a light-emitting side, and the light-emitting side is positioned at one side of the light-emitting source close to the display component; the light source comprises a second fixing part, and the second fixing part is connected with the first fixing part.

In an exemplary embodiment of the present disclosure, the mounting case further includes: the first groove is arranged on one side, away from the display assembly, of the mounting shell and extends along the first direction, and the first fixing part is located in the first groove;

the light emitting source is positioned in the accommodating cavity, and the second fixing part is positioned in the first groove and connected with the second fixing part; the light emitting source further comprises a second limiting block, and the second limiting block can be located in the first sliding groove.

The technical scheme provided by the disclosure can achieve the following beneficial effects:

the head-up display provided by the present disclosure includes: support subassembly, light source subassembly, leaded light subassembly and display module. Wherein, supporting component includes the installation shell, and the installation shell has first chamber of holding. The light source subassembly is close to first opening setting to the light source subassembly can be connected with the installation shell. The light guide member may be located in the first receiving cavity, and the light guide member may be connected with an inner sidewall of the mounting case. The display assembly may be located at a side of the light guide assembly away from the light source assembly, and may be connected with the mounting case.

From this, compare with prior art, this disclosure is direct is directly connected light source subassembly, leaded light subassembly and the display module in the ray apparatus system with the installation shell respectively to this disclosure only need carry out once the assembly process and can form above-mentioned new line display. Therefore, the light source assembly, the light guide assembly and the display assembly do not need to be assembled firstly to form the optical-mechanical system, and then the assembled optical-mechanical system and the mounting shell are assembled for the second time, so that the number of assembling processes of the head-up display can be reduced, and the assembling efficiency of the head-up display is improved.

Simultaneously, because this disclosure no longer need assemble light source subassembly, leaded light subassembly and display module earlier and form the ray apparatus system, also no longer need set up the shell of ray apparatus system yet to can effectively reduce the mould manufacturing cost of material cost and the shell of ray apparatus system, and then can reduce the whole manufacturing cost of new line display.

Moreover, the assembly process is only required to be carried out once, so that compared with the two assembly processes in the prior art, the tolerance chain of assembly can be shortened, the assembly precision can be improved, and the imaging quality of the head-up display can be improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.

FIG. 1 illustrates an exploded view of a heads-up display according to an exemplary embodiment of the present disclosure;

FIG. 2 illustrates a partial schematic structure diagram of a first cross-section of a heads-up display according to an exemplary embodiment of the present disclosure;

FIG. 3 illustrates a partial schematic structure diagram of a second cross-section of a heads-up display according to an exemplary embodiment of the present disclosure;

FIG. 4 illustrates a schematic structural view of a support assembly according to an exemplary embodiment of the present disclosure;

FIG. 5 illustrates a partial structural schematic view from a first perspective of a support assembly according to an exemplary embodiment of the present disclosure;

FIG. 6 illustrates a partial structural view from a second perspective of a support assembly according to an exemplary embodiment of the present disclosure;

FIG. 7 illustrates an exploded view of a display assembly according to an exemplary embodiment of the present disclosure;

FIG. 8 shows a schematic structural diagram of a light guide assembly according to an exemplary embodiment of the present disclosure;

FIG. 9 shows an exploded view of a light guide assembly according to an exemplary embodiment of the present disclosure;

fig. 10 illustrates an exploded view of a light source assembly according to an exemplary embodiment of the present disclosure;

fig. 11 illustrates a partial structural view of a third cross-section of a heads-up display according to an exemplary embodiment of the present disclosure.

Description of the reference numerals:

1. a support assembly; 11. mounting a shell; 12. a first accommodating chamber; 13. a light-shielding shell; 111. a load-bearing platform; 112. a first side wall; 113. a second side wall; 114. a third side wall; 115. a fourth side wall; 116. a first convex portion; 117. a second convex portion; 118. a third convex portion; 119. a fourth convex portion; 120. a first connection portion; 121. a first guide rib; 122. a first chute; 123. a second chute; 124. a first fixed part; 125. a first groove; 126. a through hole;

2. a light source assembly; 21. a light emitting source; 22. a heat sink; 23. a thermally conductive pad; 211. a second fixed part; 212. a light-emitting lamp bead; 213. a ninth limiting plate; 214. a power line; 215. a second limiting block; 221. a third fixed part; 222. a third limiting block;

3. a light guide assembly; 31. a support housing; 32. a micro-lens assembly; 33. a convex lens assembly; 34. a polarizing plate; 311. a fifth side wall; 312. a sixth side wall; 313. a seventh side wall; 314. an eighth sidewall; 315. a second slider; 316. a first limit groove; 317. a second limit groove; 318. a third limiting groove; 319. a fourth limit groove; 320. a first guide post; 321. a microlens; 322. a second limiting plate; 323. a fourth limiting plate; 324. a second guide groove; 325. a second limiting rib; 326. a second guide post; 327. a limiting step; 328. a sixth limiting groove; 329. an eighth limiting groove; 330. a clip; 331. a convex lens; 332. a sixth limiting plate; 333. an eighth limiting plate;

4. a display component; 41. a display screen; 42. a light shield; 43. light homogenizing; 421. a second connecting portion; 422. a fourth connecting portion; 423. a first card slot; 424. a second card slot;

x, a first direction; y, a second direction; z, third direction.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Furthermore, in the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the embodiments of the disclosure. It may be evident, however, that one or more embodiments may be practiced without these specific details.

The terms "a," "an," "the," and "said" are used to indicate the presence of one or more elements/components/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, components, elements and/or sections, these elements, components, elements and/or sections should not be limited by these terms. Rather, these terms are used to distinguish one element, component, element or section from another.

The present disclosure provides a head up display that can simplify an assembly process and can improve assembly accuracy.

In one embodiment of the present disclosure, as shown in fig. 1 to 3, the head up display may include: a support assembly 1, a light source assembly 2, a light guide assembly 3 and a display assembly 4. Wherein, the supporting member 1 may include: the housing 11 is mounted. The mounting case 11 may have a first receiving cavity 12, and the first receiving cavity 12 may have a first opening and a second opening that are oppositely disposed. The present disclosure can mount the light source assembly 2, the light guide assembly 3, and the display assembly 4 as a whole by providing the mounting case 11.

The light source assembly 2 may be disposed near the first opening, and the light source assembly 2 may be connected with the mounting case 11. The light source module 2 may have a light-emitting side, which may be located at a side of the light source module 2 near the second opening. The present disclosure may provide a light source for the head-up display by providing the light source assembly 2, so that an image displayed by the display assembly 4 may be projected onto a device to be projected.

The light guide member 3 may be located within the first receiving cavity 12, and may be located at a light emitting side of the light source assembly 2. The light guide member 3 may be connected to an inner wall of the mounting case 11. The present disclosure can guide light emitted from the light source assembly 2 into the display assembly 4 by providing the light guide assembly 3.

The display assembly 4 may be located at a side of the light guide assembly 3 remote from the light source assembly 2, and the display assembly 4 may be connectable with the mounting case 11. The display member 4 may have a display side, which may be located at a side of the display member 4 remote from the first opening, and the display member 4 may be used to display a desired image.

Therefore, the head-up display provided by the disclosure can directly connect the light source assembly 2, the light guide assembly 3 and the display assembly 4 in the optical mechanical system with the mounting shell 11 respectively, so that the head-up display provided by the disclosure can be formed only by performing an assembly process once. Therefore, the light source assembly 2, the light guide assembly 3 and the display assembly 4 do not need to be assembled to form the optical-mechanical system, and the assembled optical-mechanical system and the mounting shell 11 are assembled for the second time, so that the number of assembling processes of the head-up display can be reduced, and the assembling efficiency of the head-up display is improved.

Meanwhile, the light source assembly 2, the light guide assembly 3 and the display assembly 4 do not need to be assembled to form the optical-mechanical system, and a shell of the optical-mechanical system does not need to be arranged, so that the material cost and the mold manufacturing cost of the shell of the optical-mechanical system can be effectively reduced, and the overall manufacturing cost of the head-up display can be reduced.

In one embodiment of the present disclosure, as shown in fig. 4 to 6, the mounting case 11 may include: a load bearing platform 111. This load-bearing platform 111 can with the interior wall connection of installation shell 11 to can be located light guide component 3 and keep away from one side of light source subassembly 2, above-mentioned display module 4 can be installed in one side that load-bearing platform 111 kept away from light source subassembly 2, supports display module 4. Also, the supporting platform 111 may have a first light hole through which light emitted from the light source assembly 2 can pass to reach the display assembly 4.

In one embodiment of the present disclosure, the load-bearing platform 111 may be a ring-shaped structure, and the outer edge thereof may be connected with the inner wall of the mounting housing 11. The shape of the orthographic projection of the bearing platform 111 can be a rectangular ring shape or a circular ring shape, but is not limited thereto, and the shape of the bearing platform 111 is not particularly limited in the present disclosure, and can be modified or set according to actual needs, which is within the protection scope of the present disclosure.

In addition, the bearing platform 111 can be integrally manufactured with the mounting shell 11, so as to improve the stability of the connection between the bearing platform 111 and the mounting shell 11, and thus the bearing capacity of the bearing platform 111 can be improved. Moreover, when the load-bearing platform 111 and the mounting shell 11 are integrally manufactured, only one mold can be used, so that the manufacturing cost of the mold can be reduced. But not limited thereto, the load-bearing platform 111 and the mounting shell 11 can also be manufactured separately, and can be selected according to actual needs, which is within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the mounting case 11 may include at least a first sidewall 112 and a second sidewall 113 disposed opposite to each other. The first receiving cavity 12 may be located between the first sidewall 112 and the second sidewall 113. The mounting case 11 may further include: a first protrusion 116 and a second protrusion 117. The first protrusion 116 and the second protrusion 117 may be located at a side of the carrying platform 111 away from the light source assembly 2. Wherein, the first protrusion 116 may be located on a side of the first sidewall 112 close to the second sidewall 113, and may extend toward a direction close to the second sidewall 113; the second protrusion 117 may be located at a side of the second sidewall 113 adjacent to the first sidewall 112, and may extend in a direction adjacent to the first sidewall 112.

As shown in fig. 7, the display module 4 may include: a display screen 41. The display screen 41 may be positioned between the first protrusion 116 and the second protrusion 117. The display screen 41 can be limited in the second direction Y by the first protruding portion 116 and the second protruding portion 117, so that the display effect is prevented from being affected by the position deviation of the display screen 41 in the process of vibration or movement of the head-up display. The second direction Y may be a direction in which the first sidewall 112 points to the second sidewall 113.

In this embodiment, the display screen 41 may display a programmed pattern, and may project the displayed pattern onto a structural member to be transmitted under the irradiation of the light emitted by the light source assembly 2, for example, the displayed pattern may be projected onto the inner side of a front windshield or a reflective mirror. The display screen 41 may be an LCD display screen 41, but is not limited thereto, and the display screen 41 may also be an OLED display screen 41, which can be selected and set according to actual needs, which is within the protection scope of the present disclosure.

In one embodiment of the present disclosure, the mounting case 11 may be provided with a plurality of first protrusions 116 and a plurality of second protrusions 117. The plurality of first protrusions 116 may be located on a side of the first sidewall 112 adjacent to the second sidewall 113, and the plurality of first protrusions 116 may be disposed at intervals. The plurality of second protrusions 117 may be located on a side of the second sidewall 113 adjacent to the first sidewall 112, and the plurality of second protrusions 117 may be disposed at intervals. For example: the number of the first protrusions 116 may be two, three, etc., and the number of the second protrusions 117 may be two, three, etc. The display screen 41 can be more stably limited by the arrangement of the first protruding portions 116 and the second protruding portions 117, so that the display screen 41 can be more stably fixed.

In one embodiment of the present disclosure, the mounting case 11 may further include a third sidewall 114 and a fourth sidewall 115 that are oppositely disposed. Both ends of the third sidewall 114 may be connected to one end of the first sidewall 112 and one end of the second sidewall 113, respectively, and both ends of the fourth sidewall 115 may be connected to the other end of the first sidewall 112 and the other end of the second sidewall 113, respectively. It is understood that the first, second, third and

fourth sidewalls

112, 113, 114 and 115 may be connected to each other, and the first, second, third and

fourth sidewalls

112, 113, 114 and 115 may be enclosed between the first receiving chamber 12.

The mounting case 11 may further include: a third protrusion 118 and a fourth protrusion 119. The third protrusion 118 and the fourth protrusion 119 may also be located on a side of the carrying platform 111 away from the light source assembly 2. Wherein, the third protrusion 118 may be located on a side of the third sidewall 114 close to the fourth sidewall 115, and may extend to a direction close to the fourth sidewall 115; the fourth protrusion 119 may be located at a side of the fourth sidewall 115 adjacent to the third sidewall 114, and may extend in a direction adjacent to the third sidewall 114. The display screen 41 may also be positioned between the third projection 118 and the fourth projection 119. The display screen 41 can be limited in the third direction Z by the third protruding portion 118 and the fourth protruding portion 119, so that the problem that the display effect is affected by the position deviation of the display screen 41 in the process of the vibration or movement of the head-up display is further prevented.

In one embodiment of the present disclosure, the mounting case 11 may be provided with a plurality of third protrusions 118 and a plurality of fourth protrusions 119. The plurality of third protrusions 118 may be each located on a side of the third sidewall 114 close to the fourth sidewall 115, and the plurality of third protrusions 118 may be disposed at intervals. A plurality of fourth protrusions 119 may be positioned at each side of the fourth sidewall 115 adjacent to the third sidewall 114, and the plurality of fourth protrusions 119 may be spaced apart. For example: the number of the third protrusions 118 may be two, three, etc., and the number of the fourth protrusions 119 may be two, three, etc. The limiting capacity of the display screen 41 can be further improved by arranging the plurality of third convex parts 118 and the plurality of fourth convex parts 119, so that the display screen 41 can be more stable.

In the present disclosure, the number of the first, second, third and

fourth protrusions

116, 117, 118 and 119 may be the same. However, the number of the first, second, third and

fourth protrusions

116, 117, 118 and 119 may be different. Also, the first protrusion 116, the second protrusion 117, the third protrusion 118, and the fourth protrusion 119 may be integrally manufactured with the mounting case 11.

In one embodiment of the present disclosure, the mounting case 11 may further include: the first connection portion 120. The first connection portion 120 may be located at an outer sidewall of the mounting case 11. The display assembly 4 may further include: a light shield 42. The light shield 42 may be located on a side of the display screen 41 away from the light source assembly 2, and the light shield 42 is provided with a second connecting portion 421 and a second light hole, the second connecting portion 421 may be connected with the first connecting portion 120, and light emitted from the display screen 41 can pass through the second light hole. This is disclosed through setting up lens hood 42, can assemble, wrap up the light that display screen 41 sent to make the light that display screen 41 sent can concentrate more, thereby can improve the definition that the image throwed. Moreover, the light shield 42 may also be used to absorb light projected onto the inner wall of the light shield 42 and block and absorb external light to further improve the final imaging effect.

In this embodiment, the mounting case 11 may further include a third connecting portion. The first connecting portions 120 may be respectively located on a side of the first sidewall 112 away from the second sidewall 113, and the second connecting portions 421 may be located on a side of the second sidewall 113 away from the first sidewall 112. The light shield 42 may be further provided with fourth connection parts 422, the second connection parts 421 and the fourth connection parts 422 may be located at both sides of the light shield 42 in the second direction Y, and the fourth connection parts 422 may be connected with the third connection parts.

In this embodiment, the mounting case 11 may include two first connection portions 120 and two third connection portions, and the two first connection portions 120 may be both located on a side of the first side wall 112 away from the second side wall 113 and disposed at an interval. The two third connecting portions may be located on a side of the second side wall 113 away from the first side wall 112 and spaced apart from each other. The light-shielding cover 42 may be provided with two second connection portions 421 and two fourth connection portions 422, the two second connection portions 421 may both be located on one side of the light-shielding cover 42 in the second direction Y, and the two fourth connection portions 422 may be located on the other side of the light-shielding cover 42 in the second direction Y. But not limited thereto, the first connection portion 120, the second connection portion 421, the third connection portion and the fourth connection portion 422 may also be in other numbers, and may be selected and arranged according to actual needs, which is within the protection scope of the present disclosure.

In this embodiment, the first connection portion 120 and the third connection portion may be snaps, and the second connection portion 421 and the fourth connection portion 422 may be snap holes. This disclosure can facilitate the installation and removal of the first and

second connection portions

120 and 421 and the installation and removal of the third and fourth connection portions 422 by setting the first and

third connection portions

120 and 422 as the snaps and the second and

fourth connection portions

421 and 422 as the snap holes. Meanwhile, the buckle and the clamping hole are easy to manufacture, so that the production cost of the head-up display can be reduced.

In one embodiment of the present disclosure, the mounting case 11 may further include: the first guide rib 121. The first guide rib 121 may be located at an outer sidewall of the mounting case 11, and the first guide rib 121 may extend in the first direction X. It should be noted that the first direction X may be a direction in which the light source assembly 2 points to the display assembly 4.

In this embodiment, the light shield 42 may further include a first engaging groove 423, the first engaging groove 423 may be close to the first guide rib 121 in a direction opposite to the first direction X or far from the first guide rib 121 in the first direction X, and the first guide rib 121 may be located inside the first engaging groove 423. Through setting up first draw-in groove 423 and first direction muscle 121, can carry on spacingly to the direction of motion of light shield 42 when installing light shield 42 on installation shell 11 to make the installation accuracy of installation cover higher, with the assembly accuracy that improves whole new line display.

In the present embodiment, the width of the first card slot 423 may gradually decrease along the first direction X, that is: it can be understood that: the width of one end of the first locking groove 423 close to the light source assembly 2 is greater than that of one end of the first locking groove 423 far away from the light source assembly 2, and the width of the first locking groove 423 gradually decreases from one end close to the light source assembly 2 to one end far away from the light source assembly 2. This is disclosed through this setting, can be convenient for first draw-in groove 423 and the location of first direction muscle 121 to can make more swift and accurate the installing of lens hood 42 and installation shell 11.

In this embodiment, the mounting case 11 may include two first guide ribs 121, the two first guide ribs 121 may be located on a side of the first side wall 112 away from the second side wall 113, and the two first guide ribs 121 may be spaced apart from each other. The light shield 42 may include two first engaging grooves 423, the two first engaging grooves 423 may be located on the same side of the light shield 42 in the second direction Y, and the two first guide ribs 121 may be respectively located in the two first engaging grooves 423, so that the mounting accuracy of the mounting cover can be further improved, and the assembly accuracy of the entire head up display can be further improved.

In one embodiment of the present disclosure, the mounting case 11 may further include: and a second guide rib. The second guide rib may be located on a side of the second side wall 113 away from the first side wall 112, and the second guide rib may extend in the first direction X. The light shield 42 may further include: the second locking groove 424, the second locking groove 424 may be disposed opposite to the first locking groove 423, and may be close to the second guide rib in a direction opposite to the first direction X or far from the first guide rib 121 in the second direction Y, and the second guide rib may be located within the second locking groove 424. Through setting up second draw-in groove 424 and second direction muscle, can further carry on spacingly to the direction of motion of lens hood 42 when installing lens hood 42 on installation shell 11 to it is higher to further improve the installation accuracy of installation cover.

In this embodiment, the width of the second card slot 424 may also gradually decrease along the first direction X, that is: the width of the end of the second engaging groove 424 close to the light source assembly 2 is greater than the width of the end of the second engaging groove 424 far away from the light source assembly 2, and the width of the second engaging groove 424 gradually decreases from the end close to the light source assembly 2 to the end far away from the light source assembly 2. Through the arrangement, the positioning of the second clamping groove 424 and the second guiding rib can be facilitated, so that the connection rapidness and the connection accuracy of the light shield 42 and the mounting shell 11 can be further improved.

In this embodiment, the mounting case 11 may include two second guide ribs, the two second guide ribs may be both located on a side of the second side wall 113 away from the first side wall 112, and the two second guide ribs may be disposed at intervals. The light shield 42 may include two second engaging grooves 424, the two second engaging grooves 424 may be located on the same side of the light shield 42 in the second direction Y, and the two second guiding ribs may be located in the two second engaging grooves 424, respectively.

In one embodiment of the present disclosure, the first guide rib 121 may be positioned between two first connecting portions 120, and the second guide rib may be positioned between two third connecting portions. Also, the first card slot 423 may be located between the two second connection parts 421, and the second card slot 424 may be located between the two fourth connection parts 422.

In addition, the number of the first guide rib 121, the second guide rib, the first card slot 423 and the second card slot 424 may be different from the above number, for example: the number of the first guide ribs 121, the second guide ribs, the first clamping grooves 423 and the second clamping grooves 424 can be three or four, and the like, and can be set according to actual needs.

In one embodiment of the present disclosure, the display assembly 4 may further include: a gloss homogenizing sheet 43. The light homogenizing sheet 43 can be located between the display screen 41 and the bearing platform 111 to diffuse light entering the display screen 41, so that the brightness of the light entering the display screen 41 is more uniform, and the problem of uneven brightness of finally projected patterns can be avoided.

The light uniformizing sheet 43 may be located between the first protrusion 116 and the second protrusion 117, so as to limit the light uniformizing sheet in the second direction Y through the first protrusion 116 and the second protrusion 117, and prevent the light uniformizing sheet 43 from being displaced during the vibration or movement of the head-up display to affect the light uniformizing effect.

Further, the light homogenizing sheet 43 can be located between the third convex portion 118 and the fourth convex portion 119, so that the third convex portion 118 and the fourth convex portion 119 can limit the light homogenizing sheet in the third direction Z, and the stability of the light homogenizing sheet 43 can be further improved. It should be noted that the third direction Z may be a direction in which the third sidewall 114 points to the fourth sidewall 115.

As shown in fig. 4 to 6, in one embodiment of the present disclosure, an inner wall of the mounting case 11 may be provided with a first slide groove 122. The first chute 122 may extend in the first direction X. In the present embodiment, the first sliding groove 122 may be located at an end of the inner wall of the mounting case 11 away from the display assembly 4, and may extend in the first direction X.

As shown in fig. 8 and 9, the light guide assembly 3 may include: a support housing 31, a micro-lens assembly 32 and a convex lens assembly 33. Wherein, the supporting shell 31 may have a second receiving cavity, and an outer sidewall of the supporting shell 31 is provided with a first slider, which can be located in the first sliding slot 122. Through setting up first slider and first spout 122, can make support shell 31 spacing in installation shell 11 inside to can fix a position at the in-process of installation support shell 31 with installation shell 11, with the precision that improves the assembly.

In the present embodiment, the inner wall of the mounting case 11 may be provided with two first sliding grooves 122, and both the first sliding grooves 122 may be located on the inner wall of the third side wall 114. The support case 31 may include fifth and

sixth sidewalls

311 and 312 oppositely disposed in the second direction Y and seventh and

eighth sidewalls

313 and 314 oppositely disposed in the third direction Z. The outer side wall of the supporting shell 31 may be provided with two first sliding blocks, and the two first sliding blocks may be both located on the seventh side wall 313 and may be respectively located in the two first sliding grooves 122, so that the supporting shell 31 may be further limited, and the accuracy of assembly may be further improved.

Further, the mounting case 11 may be further provided with a second sliding groove 123, and the second sliding groove 123 may be located on an inner wall of the fourth side wall 115 and may extend in the first direction X. In the present embodiment, the second sliding groove 123 may be located at an end of the inner wall of the fourth side wall 115 away from the display assembly 4, and may extend in the first direction X.

The eighth sidewall 314 of the support housing 31 may further be provided with a second slider 315, and the second slide groove 123 may be located within the second slide groove 123. Through setting up second slider 315 and second spout 123, can be further spacing to supporting shell 31 to make supporting shell 31 can not take place the displacement at the in-process that the new line display vibrated or removed, thereby can guarantee that the new line display can have better display effect all the time.

The mounting case 11 may be provided with two second sliding grooves 123, and the two second sliding grooves 123 may be both located on the inner wall of the fourth side wall 115. The eighth sidewall 314 of the support case 31 may be provided with two second sliders 315, and the two second sliders 315 may be respectively located in the two second slide grooves 123.

It should be noted that, the first slide groove 122, the first sliding block, the second slide groove 123 and the second sliding block 315 are described above by way of an illustrative example, but the number of the first slide groove 122, the first sliding block, the second slide groove 123 and the second sliding block 315 is not limited to this, and may be other numbers, and may be selected and set according to actual needs.

The microlens assembly 32 can be disposed in the second receiving chamber, and may be coupled with the support case 31. In particular, microlens assembly 32 may include: a microlens 321 and a first limiting plate. The first limiting plate may be connected to the microlens 321, and may extend away from the microlens 321.

A side of the support case 31 away from the light source assembly 2 may be provided with a first limiting groove 316, and the first limiting groove 316 may extend in a direction opposite to the first direction X. The first limiting plate can be located in the first limiting groove 316 to limit the position of the microlens 321 in the first direction X through the first limiting groove 316 and the first limiting plate, so that the microlens 321 can be limited in the supporting shell 31, and the problem that the microlens 321 falls off can be prevented.

In one embodiment of the present disclosure, the supporting shell 31 may be further provided with a second limiting groove 317, or the second limiting groove 317 and a third limiting groove 318, or the second limiting groove 317, the third limiting groove 318 and a fourth limiting groove 319. The first limiting groove 316 may be located at one end of the fifth sidewall 311 away from the light source assembly 2, the second limiting groove 317 may be located at one end of the sixth sidewall 312 away from the light source assembly 2, the third limiting groove 318 may be located at one end of the seventh sidewall 313 away from the light source assembly 2, and the fourth limiting groove 319 may be located at one end of the eighth sidewall 314 away from the light source assembly 2.

When the supporting shell 31 is provided with the second limiting groove 317, the microlens assembly 32 can be further provided with a second limiting plate 322, the first limiting plate and the second limiting plate 322 are respectively located at two sides of the microlens 321 along the second direction Y, and the second limiting plate 322 can be located in the second limiting groove 317; when the support case 31 is provided with the third limiting groove 318, the microlens assembly 32 may be further provided with a third limiting plate, which may be located at one side of the microlens 321 in the third direction Z, and which may be located in the third limiting groove 318; when the support case 31 is provided with the fourth limiting groove 319, the microlens assembly 32 may be further provided with a fourth limiting plate 323, the fourth limiting plate 323 may be positioned at the other side of the microlens 321 in the third direction Z, and the fourth limiting plate 323 may be positioned in the fourth limiting groove 319. This is disclosed through setting up a plurality of spacing grooves and limiting plate, can make microlens 321 and support shell 31 installation firm, prevents that microlens 321 from taking place unnecessary displacement in first direction X.

In one embodiment of the present disclosure, the support shell 31 may be further provided with a first guide post 320, and the first guide post 320 may be located in the first limit groove 316 and may extend in the first direction X. The micro lens assembly 32 may further be provided with a first guide groove, the first guide groove may be located at an end of the first limiting plate away from the micro lens 321, and at least a portion of the first guide column 320 may be located in the first guide groove, so that displacement of the micro lens 321 in the second direction Y and the third direction Z may be limited by the first guide column 320, so that the micro lens 321 is more stably mounted.

Further, the supporting shell 31 may be further provided with a second guiding post 326, and the second guiding post 326 may be located in the second limiting groove 317 and may also extend along the first direction X. The microlens assembly 32 can further be provided with a second guide groove 324, the second guide groove 324 can be located at an end of the second limiting plate 322 far away from the microlens 321, and at least a portion of the second guide column 326 can be located in the second guide groove 324, so that the displacement of the microlens 321 in the second direction Y and the third direction Z can be further limited by the second guide column 326, so as to further make the installation of the microlens 321 more stable.

In one embodiment of the present disclosure, the support case 31 may be further provided with a clip 330. The clip 330 may be positioned in the first and second retaining grooves 316, 317 to clip the first and second retaining plates 322 to secure the micro-lens assembly 32.

In an embodiment of the present disclosure, the micro lens 321 may be a fly-eye lens, and the front and back surfaces of the micro lens may be formed by combining a series of surface micro lenses, so as to improve the utilization rate of the light emitted by the light source module 2, improve the illumination area, and make the light distribution more uniform. Without limitation, the microlens 321 may be other types of microlenses 321, and may be selected according to actual needs, which is within the scope of the present disclosure.

In one embodiment of the present disclosure, the support shell 31 may be further provided with a limit step 327, and the limit step 327 can be located at a sidewall of the support shell 31. The micro lens assembly 32 may further be provided with a first limiting rib, and the first limiting rib may be connected to a side of the micro lens 321 close to the light source assembly 2, and may extend toward a direction close to the light source assembly 2.

The light guide assembly 3 may further include: a polarizer 34. The polarizing plate 34 can be located on the position restricting step 327 and on the side of the microlens 321 close to the light source assembly 2. The first limiting rib may abut against a side of the polarizer 34 close to the microlens 321, so as to limit the displacement of the polarizer 34 in the first direction X through the first limiting rib and the limiting step 327. Also, the side wall of the support case 31 may limit displacement of the polarizing plate 34 in the second direction Y and the third direction Z. By providing the polarizing plate 34, light emitted from the light source module 2 can be filtered, and unnecessary polarized light can be eliminated, thereby improving the imaging effect of the head-up display.

In this embodiment, the micro lens assembly 32 may further be provided with a second limiting rib 325, the second limiting rib 325 may be connected to one side of the micro lens 321 close to the light source assembly 2 and extend to the direction close to the light source assembly 2, and the first limiting rib and the second limiting rib 325 may be respectively located on two sides of the micro lens 321 in the first direction X, so as to improve the limiting effect on the polarizer 34.

The convex lens assembly 33 may be disposed in the second receiving cavity, and may be located at a side of the micro-lens assembly 32 close to the light source assembly 2, and the convex lens assembly 33 may be connected to the support case 31. Specifically, the convex lens assembly 33 may further include a convex lens 331 and a fifth restriction plate, and the fifth restriction plate may be connected with the convex lens 331 and may extend in a direction away from the convex lens 331.

One side of the supporting shell 31 close to the light source assembly 2 may be provided with a fifth limiting groove, and the fifth limiting groove may extend along the first direction X. The fifth limiting plate can be located in the fifth limiting groove to limit the convex lens 331 in the first direction X through the fifth limiting groove and the fifth limiting plate, so that the micro lens 321 can be limited in the supporting shell 31, and the problem that the convex lens 331 falls off can be prevented.

In an embodiment of the present disclosure, the support shell 31 may be further provided with a sixth limiting groove 328, or the sixth limiting groove 328 and the seventh limiting groove, or the sixth limiting groove 328, the seventh limiting groove and the eighth limiting groove 329. The fifth limiting groove may be located at one end of the fifth sidewall 311 close to the light source assembly 2, the sixth limiting groove 328 may be located at one end of the sixth sidewall 312 close to the light source assembly 2, the seventh limiting groove may be located at one end of the seventh sidewall 313 close to the light source assembly 2, and the eighth limiting groove 329 may be located at one end of the eighth sidewall 314 close to the light source assembly 2.

When the support case 31 is provided with the sixth limiting groove 328, the convex lens assembly 33 may further be provided with a sixth limiting plate 332, the fifth limiting plate and the sixth limiting plate 332 are respectively located on two sides of the convex lens 331 along the second direction Y, and the sixth limiting plate 332 may be located in the sixth limiting groove 328; when the support case 31 is provided with the seventh limiting groove, the convex lens assembly 33 may be further provided with a seventh limiting plate, which may be located at one side of the convex lens 331 in the third direction Z, and which may be located in the seventh limiting groove; when the support case 31 is provided with the eighth limiting groove 329, the convex lens assembly 33 may be further provided with an eighth limiting plate 333, the eighth limiting plate 333 may be positioned at the other side of the microlens 321 in the third direction Z, and the eighth limiting plate 333 may be positioned in the eighth limiting groove 329. This is disclosed through setting up a plurality of spacing grooves and limiting plate, can make convex lens 331 firm in order to support the installation of shell 31, prevents that convex lens 331 from taking place the displacement that influences the display effect on first direction X.

In an embodiment of the present disclosure, the convex lens assembly 33 may be provided with a plurality of convex lenses 331 arranged in an array to converge the point light source emitted by the light source assembly 2, so as to reduce light loss generated by light source scattering, thereby significantly improving the irradiation efficiency of the light source assembly 2. In the present embodiment, the convex lens 331 may be a spherical convex lens 331, but is not limited thereto.

As can be seen from the above, the light guide assembly 3 of the present disclosure can support and combine the microlens assembly 32, the polarizer 34, and the convex lens assembly 33 by providing the support case 31, so as to improve the assembly accuracy thereof. Moreover, the supporting shell 31 is arranged to control the distance between the convex lens 331 and the micro lens 321, so that the optical requirements can be met, and the problems that the brightness of the light projected by the light guide assembly 3 is not uniform and the brightness of the finally transmitted image of the display assembly 4 is not uniform due to poor control of the distance between the convex lens 331 and the micro lens 321 can be avoided.

As shown in fig. 4 to 6, in one embodiment of the present disclosure, the mounting case 11 may be further provided with a first fixing portion 124. The first fixing portion 124 may be located at a side of the mounting case 11 away from the display module 4. As shown in fig. 10, the light source assembly 2 may include: the light emitting source 21, the light emitting source 21 may have a light emitting side, and the light emitting side may be located at a side of the light emitting source 21 close to the display module 4. The light source 21 may include a second fixing portion 211, and the second fixing portion 211 may be connected to the first fixing portion 124, so that the light source 21 may be mounted on the mounting case 11.

In this embodiment, the first fixing portion 124 and the second fixing portion 211 may be fixing holes, and the first fixing portion 124 and the second fixing portion 211 may be fixedly connected by screws, but the invention is not limited thereto, and the first fixing portion 124 and the second fixing portion 211 may also be fixing structures in other forms.

In this embodiment, the light-emitting source 21 may further include a plurality of ninth limiting plates 213, the plurality of ninth limiting plates 213 may be disposed along the circumferential direction of the light-emitting source 21, and the plurality of ninth limiting plates 213 may be located in the fifth limiting groove, the sixth limiting groove 328, the seventh limiting groove, and the eighth limiting groove 329, so as to limit the displacement of the light-emitting source 21 in the first direction X through the fifth limiting groove, the sixth limiting groove 328, the seventh limiting groove, and the eighth limiting groove 329.

In this embodiment, the light emitting source 21 may be provided with a plurality of light emitting beads 212 and a power line 214. For example, the number of the plurality of light-emitting lamp beads 212 may be an even number, and the plurality of light-emitting lamp beads 212 may be arranged at equal intervals, so that the uniformity of light emission can be improved. But not limited thereto, the number of the light-emitting lamp beads 212 may not be even, and can be selected and set according to actual needs. In addition, as shown in fig. 11, the mounting housing 11 may further include a through hole 126, and the power line 214 may pass through the through hole 126 of the mounting housing 11.

In one embodiment of the present disclosure, the mounting case 11 may further include: a first groove 125. The first groove 125 may be disposed on a side of the mounting case 11 away from the display module 4 and extend along the first direction X. The first fixing portion 124 may be located in the first groove 125. The light emitting source 21 may be located in the receiving cavity, and the second fixing portion 211 may be located in the first recess 125 and connected to the second fixing portion 211.

Further, the light emitting source 21 may further include a second limiting block 215, and the second limiting block 215 may be located in the first sliding groove 122 to limit the first limiting block through the first sliding groove 122, so as to improve the fixing stability of the light emitting source 21 and the mounting case 11.

In addition, the mounting case 11 may be provided with two first fixing portions 124 and two first grooves 125, and the two first fixing portions 124 and the two first grooves 125 may be located at both sides of the mounting case 11 in the second direction Y; the light emitting source 21 may include two second fixing portions 211, and the two second fixing portions 211 may be located at both sides of the light emitting source 21 in the second direction Y and may be located on one second stopper 215, respectively. This disclosure can greatly improve the fixed firm degree of light emitting source 21 and installation shell 11 through setting up two first fixed, two first recesses 125, two second fixed parts 211 and two second stopper 215.

In one embodiment of the present disclosure, the light source assembly 2 may further include: a heat sink 22. The heat sink 22 may be located on a side of the light emitting source 21 away from the display module 4 and connected to the mounting case 11 to conduct heat generated by the light emitting source 21 to the heat sink, and transfer the heat to the ambient air by natural air convection, so as to reduce the self-heat of the light emitting source 21.

In this embodiment, the heat sink 22 may include a third fixing portion 221, and the third fixing portion 221 may be connected to the first fixing portion 124, so as to connect the heat sink 22 to the mounting case 11. Specifically, the third fixing portion 221 may be a fixing hole, and an orthogonal projection of the third fixing portion 221 may at least partially overlap an orthogonal projection of the second fixing portion 211, so that a screw can sequentially pass through the third fixing portion 221 and the second fixing portion 211 and be fixedly connected with the first fixing portion 124.

In this embodiment, the heat sink 22 may be provided with a third limiting block 222, and the third limiting block 222 may be located in the first sliding groove 122 to limit the third limiting block 222 through the first sliding groove 122, so as to improve the fixing stability of the heat sink 22 and the mounting case 11.

In this embodiment, the third fixing portion 221 may be disposed on the third limiting block 222. Moreover, the heat sink 22 may be provided with two third fixing portions 221 and two third stoppers 222, and the two third fixing portions 221 and the two third stoppers 222 may be respectively located on two sides of the heat sink 22 in the second direction Y, so as to further improve the fixing stability of the heat sink 22 and the mounting case 11.

In one embodiment of the present disclosure, the light source assembly 2 may further include: a thermal pad 23. The heat conducting pad 23 can be located between the light emitting source 21 and the heat sink 22, and can be attached to the light emitting source 21 and the heat sink 22, so that heat emitted by the light emitting source 21 is efficiently transferred to the heat sink 22, the heat dissipation efficiency of the light emitting source 21 is improved, and the light emitting lamp bead 212 is prevented from being burnt due to overheating of the light emitting source 21 caused by poor heat conduction.

In this embodiment, the material of the thermal pad 23 may be a silicon gel, but is not limited thereto, and the material of the thermal pad 23 may also be other materials, which may be selected and set according to actual needs, which is within the protection scope of the present disclosure.

In an embodiment of the present disclosure, as shown in fig. 4, the support assembly 1 may further include a light shielding shell 13, and the mounting shell 11 may be connected to the light shielding shell 13 to shield external light through the light shielding shell 13, so that the display effect of the head-up display can be improved.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims

1. A heads-up display, comprising:

the light source assembly is arranged close to the first opening and is connected with the mounting shell, the light source assembly is provided with a light emitting side, and the light emitting side is positioned on one side, close to the second opening, of the light source assembly;

the display assembly is located on one side, away from the light source assembly, of the light guide assembly and connected with the mounting shell, the display assembly is provided with a display side, and the display side is located on one side, away from the first opening, of the display assembly.

2. The heads-up display of claim 1 wherein the mounting case comprises:

3. The heads-up display of claim 2 wherein the mounting housing includes at least first and second oppositely disposed sidewalls, the first receiving cavity being located between the first and second sidewalls;

the mounting case further includes:

the first convex part and the second convex part are positioned on one side, far away from the light source assembly, of the bearing platform; the first convex part is positioned on one side of the first side wall close to the second side wall and extends towards the direction close to the second side wall; the second convex part is positioned on one side of the second side wall close to the first side wall and extends towards the direction close to the first side wall;

the display assembly includes:

4. The heads-up display of claim 3 wherein the mounting case further comprises: a first connection part located at an outer side wall of the mounting case;

the display assembly includes: the light shield is positioned on one side of the display screen, which is far away from the light source assembly, and is provided with a second connecting part and a second light transmitting hole, and the light shield is used for absorbing light projected onto the inner wall of the light shield;

the second connecting portion with first connecting portion are connected, the light that the display screen sent can see through the second light trap.

5. The heads-up display of claim 1 wherein an inner wall of the mounting case is provided with a first sliding slot extending in a first direction; the light guide assembly includes:

6. The head-up display of claim 5, wherein a side of the support housing away from the light source assembly is provided with a first limiting groove extending in a direction opposite to the first direction;

7. The head-up display of claim 6, wherein the support housing is further provided with a first guide post that is positionable in the first retaining groove and extends in the first direction;

8. The head-up display of claim 5, wherein a fifth limiting groove is further disposed on a side of the supporting shell close to the light source assembly, and the fifth limiting groove extends along the first direction;

the convex lens assembly includes: convex lens and fifth limiting plate, the fifth limiting plate with convex lens are connected to keeping away from the direction of convex lens extends, just the fifth limiting plate is located the fifth limiting groove, so that convex lens be spacing in support shell.

9. The heads-up display of claim 5 wherein the mounting case further comprises: the first fixing part is positioned on one side, far away from the display component, of the mounting shell;

10. The heads-up display of claim 9 wherein the mounting case further comprises: the first groove is arranged on one side, away from the display assembly, of the mounting shell and extends along the first direction, and the first fixing part is located in the first groove;