CN217767726U

CN217767726U - Optical display, seat and vehicle

Info

Publication number: CN217767726U
Application number: CN202221055391.3U
Authority: CN
Inventors: 吴宇; 刘渊恪; 贾利锐
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-11-08
Anticipated expiration: 2032-04-29

Abstract

The application provides an optical display, a seat and a vehicle. The optical display comprises a shell, a light source unit and a curved mirror. The light source unit is fixed on the shell and used for emitting imaging light. The curved mirror comprises a mirror body and a connecting part convexly arranged on the mirror body, the mirror body is used for reflecting the imaging light out of the shell, and the connecting part is abutted against and fixedly connected with the first positioning surface. The curved mirror is directly fixed on the first positioning surface on the shell through the connecting part without adopting adapters such as a frame body and the like, so that the number of elements of the optical display is reduced, the assembly precision of the optical display is improved, the structure of the optical display is simplified, the improvement of the precision of an optical path system of the optical display is facilitated, and the output quality of imaging light of the optical display is improved.

Description

Optical display, seat and vehicle

Technical Field

The present application relates to the field of optical displays, and in particular, to an optical display, a seat and a vehicle.

Background

The optical display is a device for obtaining large-screen visual experience in a small space by using an optical imaging principle, and can be widely applied to projectors, head-up displays (HUDs), vehicle-mounted display screens, vehicle lamps and the like. The curved mirror in the optical display is used to project the imaging light emitted from the light source unit to the outside of the optical display.

In a conventional optical display, the curved mirror is first adhered to the frame and then fixed to the housing through the frame, which complicates the structure of the optical display and increases the number of steps for assembling the optical display.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an optical display, a seat and a vehicle, which can simplify the structure.

In a first aspect, the present application provides an optical display comprising a housing, a light source unit, and a curved mirror. The shell is provided with a first positioning surface. The light source unit is fixed on the shell and used for emitting imaging light. The curved mirror comprises a mirror body and a connecting part convexly arranged on the mirror body, the mirror body is used for reflecting the imaging light to the outside of the shell, and the connecting part is fixedly connected with the first positioning surface.

The conventional optical display is fixed by fixing the curved mirror to a frame, and the frame is fixed to the housing by a fixing member. Therefore, the structure of the optical display is complicated, the assembling steps of the optical display are increased, the occupied space of the optical display is increased, and the development of high screen ratio is not facilitated. Assembly tolerances exist in the assembly of components, and the assembly accuracy may be lower if the number of components of the optical display is larger, and the assembly accuracy affects the accuracy of an optical path system of the optical display.

In the application, the curved mirror is directly fixed on the first positioning surface of the shell through the connecting part without adopting adapters such as a frame body, the number of elements of the optical display is reduced, the structure of the optical display is simplified, the occupied space of the optical display is reduced, and the assembling steps of the optical display are reduced, so that the assembling precision of the optical display is improved, the precision of an optical path system of the optical display is improved, and the output quality of imaging light of the optical display is improved.

The first positioning surface can position the curved mirror along the normal direction of the first positioning surface, so that the assembly between the shell and the curved mirror is facilitated.

The connection may also be referred to as a "hanger". The connecting part and the first positioning surface can be attached to or abutted against or contacted with each other. For the fixing mode between the connecting part and the first positioning surface, glue bonding or fastener fixing and the like can be adopted.

According to the first aspect, in a possible implementation manner, the connecting portion is provided with a groove, the housing further includes a positioning column protruding from the first positioning surface, and the positioning column penetrates through the groove.

In the assembling process of the curved mirror and the shell, the connecting part can be positioned by the positioning column, so that the assembly between the curved mirror and the shell is facilitated, and the assembly precision and the assembly efficiency of the optical display are improved.

According to the first aspect, in a possible implementation manner, a reserved gap is reserved between an inner wall of the groove and the positioning column.

Due to the difference in the materials, the curved mirror and other mating components of the optical display generally have different thermal expansion coefficients, which makes the curved mirror susceptible to deformation caused by the extrusion of other mating components when the ambient temperature changes greatly. Taking the application of the optical display in a vehicle as an example, when the temperature inside the vehicle (i.e. the ambient temperature of the optical display) is higher than a predetermined temperature (e.g. 70 degrees celsius, etc.), the curved mirror and the housing may deform due to thermal expansion, and the housing may press the curved mirror. Once the curved mirror is deformed, the optical path of the imaging light reflected by the deformed portion is distorted, which affects the imaging light output quality of the optical display.

In this application, consider the thermal expansion factor of the material that ambient temperature changes and lead to, make the inner wall of recess with there is the reservation clearance between the reference column to reserve curved mirror and shell thermal expansion space, reduce the curved mirror and lead to the possibility of deformation because of the extrusion, improved optical display's light path stability.

According to the first aspect, in a possible implementation manner, the housing further includes a positioning portion disposed on the housing, the first positioning surface is disposed on an inner wall of the positioning portion, and the connecting portion is accommodated in the positioning portion.

The connecting part is accommodated in the positioning part, so that the rotation of the curved mirror relative to the shell can be limited while the positioning part positions the connecting part, the position stability of the curved mirror relative to the shell is improved, and the display quality of the optical display is improved.

According to the first aspect, in a possible implementation manner, the inner wall of the positioning portion further includes a side surface connected to the first positioning surface, and a reserved gap is reserved between the side surface and the edge of the connecting portion.

In this application, consider the thermal expansion factor of the material that ambient temperature changes and lead to, make the side with there is the reservation clearance between the edge of connecting portion to reserve curved mirror and shell thermal expansion space, reduce the curved mirror and lead to the possibility of deformation because of the extrusion, improved optical display's light path stability.

According to the first aspect, in a possible implementation manner, the number of the connecting portions is plural, the mirror body includes a first edge, a second edge, a third edge and a fourth edge, the first edge and the second edge are disposed opposite to each other along a first direction, the third edge and the fourth edge are disposed opposite to each other, the first direction is different from the second direction, the first edge, the second edge and the third edge are each provided with a connecting portion, a groove in the connecting portion penetrates through the connecting portion along a third direction, the third direction is different from the first direction, and the third direction is different from the second direction.

Through setting up connecting portion at the three edge of the mirror body, realize when three direction fix a position the curved mirror, also restrict the rotation of curved mirror around three direction, be favorable to further improving the positional stability of the relative shell of curved mirror.

According to the first aspect, in a possible implementation manner, a positioning groove is formed in the housing, the curved mirror comprises a mirror body and a positioning convex portion which is convexly arranged on the edge of the mirror body, the positioning convex portion is contained in the positioning groove, and the positioning groove positions the positioning convex portion so as to further improve the assembly precision between the curved mirror and the housing.

According to the first aspect, in a possible implementation manner, the optical display further includes a connecting assembly, the connecting assembly includes a pressing sheet and a first fixing member, the curved mirror is located between the pressing sheet and the housing, the first fixing member is disposed through the pressing sheet and the positioning column, and the pressing sheet presses the curved mirror onto the housing.

The curved mirror is pressed onto the shell through the pressing sheet, namely the position of the curved mirror is limited between the shell and the pressing sheet, so that the position stability of the curved mirror on the shell is improved, the possibility that the curved mirror is damaged due to large local stress is reduced, the service life of the curved mirror is prolonged, and the use reliability of an optical display is improved.

According to the first aspect, in a possible implementation manner, the housing further includes a connection column protruding on the first positioning surface, and the connection assembly further includes a second fixing member, and the second fixing member is fixedly connected to the connection column.

First mounting, second mounting all wear to locate the preforming and with shell fixed connection, and compress tightly the curved mirror and be fixed in on the shell, improved joint strength and connection stability between curved mirror and the shell.

According to a first aspect, in one possible implementation, the connection assembly further comprises a flexible buffer located between the pressing sheet and the connection portion.

The flexible buffer is located between the pressing sheet and the connecting portion, on one hand, the flexible buffer can reduce the possibility that the connecting portion is damaged due to pressing of the pressing sheet, and on the other hand, the flexible buffer can absorb vibration, so that the quality of the output imaging light of the optical display is improved.

According to a first aspect, in a possible implementation manner, the housing is provided with an assembly port communicated with the inner cavity of the housing, the curved mirror is disposed at the assembly port, and the optical display further includes a cover body, which is fixedly connected to the housing and covers the assembly port.

The setting of assembly mouth makes things convenient for in packing into the shell with curved mirror, or takes out curved mirror from the shell, makes things convenient for equipment and dismantlement between curved mirror and the shell promptly. The cover body is favorable for sealing the assembly opening, and dust is prevented from entering the shell.

According to a first aspect, in a possible implementation manner, the housing is provided with an installation opening communicated with the housing inner cavity, and the optical display further includes a transflective optical element, the transflective optical element is fixed on the housing and covers the installation opening, and the transflective optical element is configured to reflect the imaging light output by the light source unit onto the curved mirror. The transmission path of the imaging light emitted by the light source unit is changed by the light transmitting and reflecting optical element, so that flexible setting of the light path in the shell is facilitated as required, and the layout flexibility of the optical display is improved.

In a second aspect, a chair comprises an optical display as described above mounted on the chair.

In a third aspect, a vehicle comprises an optical display as described above mounted on the vehicle.

According to the third aspect, in a possible application scenario, the optical display may be integrated in a head-up display, and the head-up display may project navigation information, instrument information, and the like in a front view range of the driver, so that switching of the line of sight between the image and the road surface when the driver looks over the information with his head down is avoided, crisis response time is reduced, and driving safety is improved.

In one possible application scenario, the optical display may be integrated into a vehicle-mounted display screen, the vehicle-mounted display screen may be mounted on the back of a seat or in a co-driver position, and the user may view videos through the optical display, thereby improving the entertainment function of the vehicle.

In one possible application scenario, the optical display may be integrated in a vehicle lamp.

Drawings

Fig. 1 is a schematic view of an application scenario of a vehicle according to an embodiment of the present application;

FIG. 2a is a cross-sectional view of an optical display according to an embodiment of the present application;

FIG. 2b is a schematic exploded perspective view of the optical display shown in FIG. 2 a;

FIG. 3 is a schematic diagram of imaging based on a virtual image principle of an optical display according to an embodiment of the present disclosure;

FIG. 4 is a schematic perspective view of a housing of an optical display according to an embodiment of the present disclosure;

FIG. 5 is a cross-sectional view of a housing of an optical display provided in an embodiment of the present application;

FIG. 6 is an enlarged view of a portion A of FIG. 2 a;

FIG. 7 is an enlarged view of a portion B of FIG. 2 a;

FIG. 8a is a schematic view of a housing of an optical display according to an embodiment of the present application;

FIG. 8b is a schematic perspective view of another perspective view of a housing of an optical display according to an embodiment of the present disclosure;

fig. 9 is a schematic plan view of a housing and a light source unit assembled together according to an embodiment of the present application;

fig. 10a is a schematic distribution diagram of fixing posts and positioning posts on a mounting surface according to an embodiment of the present disclosure;

FIG. 10b is a perspective view of another perspective of a housing provided in accordance with an embodiment of the present application;

FIG. 11 is an exploded perspective view of a housing and a curved mirror according to one embodiment of the present application;

FIG. 12 is a schematic plan view of a curved mirror provided in accordance with an embodiment of the present application;

FIG. 13 is a schematic view of a housing and a curved mirror assembled together according to one embodiment of the present application;

FIG. 14 is an enlarged view of a portion C of FIG. 13;

FIG. 15a is a schematic plan view of a possible configuration of a curved mirror provided in one embodiment of the present application;

FIG. 15b is a schematic plan view of a possible configuration of a curved mirror provided in one embodiment of the present application;

FIG. 15c is a schematic plan view of a possible configuration of a curved mirror provided in one embodiment of the present application;

FIG. 15d is a schematic plan view of a possible configuration of a curved mirror provided in one embodiment of the present application;

FIG. 16 is a perspective assembly view of another perspective of a housing and a curved mirror according to one embodiment of the present application;

FIG. 17 is yet another cross-sectional view of an optical display provided in an embodiment of the present application;

FIG. 18a is a schematic view of a portion of a vehicle according to an embodiment of the present disclosure;

FIG. 18b is a schematic diagram of one possible implementation of an optical display integrated with a head-up display;

FIG. 19 is a functional schematic of a vehicle provided herein;

FIG. 20 is a schematic view of a possible application scenario of an optical display according to an embodiment of the present application;

fig. 21 is a schematic view of another possible application scenario of an optical display provided in an embodiment of the present application.

Detailed Description

Referring to fig. 1, an embodiment of the present application provides a vehicle 1000, and the vehicle 1000 in the embodiment of the present application may be a known vehicle such as an automobile, an airplane, a ship, a rocket, or may be a vehicle that is newly developed in the future. The vehicle may be an electric vehicle, a fuel vehicle, or a hybrid vehicle, for example, a pure electric vehicle, an extended range electric vehicle, a hybrid electric vehicle, a fuel cell vehicle, a new energy vehicle, and the like, which is not specifically limited in this application.

The vehicle 1000 comprises a cabin 200 and seats mounted in the cabin 200. The seats include a first seat 300 and a second seat 500 for seating an occupant. In the present embodiment, the first seat 300 is a front seat provided in the cabin 200. The second seat 500 is a rear seat disposed behind the first seat 300, and is used for seating an occupant. In other embodiments of the present application, the first seat 300 may not be a front seat.

The first seat 300 includes a seat main body 301 and an optical display 10 mounted on the seat main body 301. In the present application, an occupant seated in the second seat 500 viewing the optical display 10 is referred to as a viewer. It will be appreciated that the optical display 10 may also be mounted in a co-driver position of the vehicle 1000 (as shown in fig. 1), i.e., on an Instrument Panel (IP) stand of the vehicle.

Referring to fig. 2a, an embodiment of the present application provides an optical display 10 for outputting imaging light carrying image information.

Referring to fig. 2a and fig. 2b, the optical display 10 includes a housing 1, a light source unit 3, a transflective optical element 5, a curved mirror 7, a connecting component 8, and a cover 9.

The light source unit 3 is fixed to the housing 1 and emits imaging light. A transflective optical element 5 is fixed to the housing 1 for transmitting and reflecting the imaging light. The curved mirror 7 is fixed to the housing 1 by a connecting member 8 for reflecting the imaging light. The cover 9 is fixed to the housing 1 and covers the curved mirror 7 to protect the curved mirror 7 and to reduce dust from entering the housing 1.

Imaging light emitted by the light source unit 3 is reflected by the transflective optical element 5 to the curved mirror 7, and the imaging light reflected by the curved mirror 7 is transmitted to the outside of the housing 1 after being transmitted by the transflective optical element 5. Among them, the light source unit 3 may be referred to as an image source. The transflective optical element 5 may reflect the image light emitted from the light source unit 3 to the curved mirror 7, and transmit the image light reflected by the curved mirror 7.

In a conventional optical display, optical elements such as a light source and a curved mirror are fixed to respective fixing frames and then assembled to a housing, so that the number of the optical display elements is large. Assembly tolerance exists in assembly between components, and if the number of components is larger, the assembly difficulty of the system or the equipment is larger, and the assembly precision can be lower.

In the present application, since the light source unit 3, the transflective optical element 5, and the curved mirror 7 are not directly fixed on the same housing 1 through other adapters (e.g. respective fixing frames), the number of elements of the optical display 10 is reduced, the assembly difficulty of the optical display 10 is reduced, the assembly precision of the optical display 10 is improved, the structure of the optical display 10 is simplified, and thus, the precision of the optical path system of the optical display 10 is improved, and the output quality of the imaging light of the optical display 10 is improved.

Referring to fig. 3, in some embodiments of the present application, the curved mirror 7 can transmit the imaging light to the outside of the housing 1 through the transflective optical element 5 and then enter the eye 80, and the eye 80 sees an enlarged virtual image. The virtual image is viewable by the eyes and need not be received by the light sheet. As shown in fig. 3, the imaging light L emitted from the light source unit 3 and having a certain divergence angle is reflected by the transflective optical element 5 and the curved mirror 7 and then enters the eye 80, and the brain traces the light in a reverse direction by the experience of "light traveling along a straight line", and the imaging light L is considered to be an object point, i.e., a virtual image point, at an intersection point where the light extends in the reverse direction. The position of the eye 80 may be referred to as an eye box (Eyebox) position.

In other embodiments of the present application, the curved mirror 7 can project the imaging light through the reflective optical element 5 onto a light curtain (not shown) located outside the housing 1, and the light curtain can be a wall, a projection curtain, a wood board, etc., and the present application does not limit the specific form of the light curtain.

In some embodiments of the present application, the housing 1 is an integrally formed shell. In other embodiments of the present application, the housing 1 may be assembled from two or more parts.

Referring to fig. 4 and 5, the housing 1 includes a main housing 11 and a mounting portion 13.

The main housing 11 includes a first portion 1101 (which may be considered an upper portion of the housing 1) and a second portion 1103 (which may be considered a lower portion of the housing 1) that are disposed in connection. The cavity defined by the first portion 1101 and the second portion 1103 includes a mounting opening 103 (shown in fig. 5) and a mounting opening 105 (which may be referred to as front and rear openings). The mounting port 103 is provided in communication with the internal cavity of the main housing 11, and the mounting port 105 is provided in communication with the internal cavity of the main housing 11. The mounting port 103 is for transmitting imaging light. The mounting opening 105 is used for mounting the curved mirror 7. The light source unit 3 is fixedly housed in the first portion 1101. The transflector 5 and curved mirror 7 are located in the second portion 1103.

Because the light source unit 3 is installed and accommodated in the first portion 1101, and the transflective optical element 5 and the curved mirror 7 are located at the second portion 1103, when a user views the optical display 10, it is difficult to see the light source unit 3 located at the first portion 1101 through the transflective optical element 5, which is equivalent to the light source unit 3 being hidden in the first portion 1101, and the stray light of the light source unit 3 cannot directly transmit through the transflective optical element 5 to reach human eyes, thereby being beneficial to improving the user experience and also improving the imaging quality of the optical display 10.

In some embodiments of the present application, the first portion 1101 includes a first sidewall 111 and a second sidewall 112 disposed in a bending connection. The first side wall 111 is provided with a mounting surface 1113 provided toward the inner cavity of the main housing 11 for connection with the light source unit 3 (mounting of the light source unit 3).

In some embodiments of the present application, the second portion 1103 includes a third sidewall 113, a fourth sidewall 114, and a fifth sidewall 115. The third sidewall 113 is fixedly connected between the fourth sidewall 114 and the fifth sidewall 115.

The third side wall 113 has a positioning groove 106 formed on the inner wall facing the inner cavity of the main housing 11 for positioning the curved mirror 7.

The fourth side wall 114 is disposed opposite to the fifth side wall 115. The first sidewall 111 is located between the fourth sidewall 114 and the fifth sidewall 115. The second sidewall 112 is located between the fourth sidewall 114 and the fifth sidewall 115. The third sidewall 113 is located between the fourth sidewall 114 and the fifth sidewall 115. The first, second, third, fourth and

fifth sidewalls

111, 112, 113, 114 and 115 together enclose an inner cavity of the main housing 11. The second sidewall 112, the third sidewall 113, the fourth sidewall 114 and the fifth sidewall 115 together define the mounting opening 103. The first side wall 111, the third side wall 113, the fourth side wall 114, and the fifth side wall 115 together enclose the mounting opening 105.

Referring to fig. 6, the mounting portion 13 is protruded from the outer side of the main housing 11 for fixing the transflective optical element 5. The internal optical path of the optical display 10 is located inside the main housing 11, and the mounting portion 13 for fixing the transflective optical element 5 is disposed outside the main housing 11, so that the mounting portion 13 has no influence on the internal optical path of the optical display 10, in other words, the mounting portion 13 does not influence the transmission of the imaging light inside the main housing 11, thereby reducing the generation of the reflected stray light of the optical display 10 and improving the output quality of the imaging light of the optical display 10.

The mounting portion 13 includes a mounting bottom wall 132 and a protection flange 134. The mounting bottom wall 132 protrudes from the outer side of the main housing 11, and the mounting bottom wall 132 has a mounting surface 1320 for fixedly connecting with the transflective optical element 5. In the present embodiment, the mounting bottom wall 132 is protruded from the second sidewall 112, the third sidewall 113, the fourth sidewall 114, and the fifth sidewall 115, and the mounting bottom wall 132 is disposed along the peripheral contour of the mounting opening 103. The mounting surface 1320 is obliquely disposed relative to the mounting surface 1113 (shown in FIG. 5).

The transflector 5 is fixedly attached to the mounting surface 1320 of the mounting bottom wall 132. The transflector 5 is arranged parallel to the mounting surface 1320. The mounting surface 1320 is disposed parallel to the transflective optical element 5, the position of the mounting surface 1320 corresponds to the position of the transflective optical element 5 in the optical path of the optical display 10, and during the process of assembling the transflective optical element 5 with the housing 1, the mounting surface 1320 can position the transflective optical element 5 along the normal direction of the mounting surface 1320, thereby improving the positioning accuracy of the housing 1 on the transflective optical element 5 and improving the output quality of the imaging light in the optical display 10.

In some embodiments of the present application, the transflective optical element 5 is adhesively attached to the mounting bottom wall 132. The colloid can be double-sided adhesive tape or adhesive.

In other embodiments of the present application, the transflector element 5 may be disposed non-parallel to the mounting surface 1320.

In other embodiments of the present application, the mounting surface 1320 is provided on the inner wall of the housing 1, and the transflective optical element 5 may be located inside the housing 1.

A protective flange 134 is provided projecting from the mounting bottom wall 132 and along the periphery of the mounting bottom wall 132 for protecting the edge of the transflective optical element 5. In some embodiments of the present application, a protective flange 134 is disposed around the transflector 5 to enclose the transflector 5. In other embodiments of the present application, the protective flange 134 is raised over a portion of the perimeter of the mounting bottom wall 132 to protect the edge of the transflector element 5 in sections or areas, i.e., the protective flange 134 protects at least a portion of the edge of the transflector element 5.

Because the protective flange 134 surrounds at least a portion of the edge of the transflector 5, the transflector 5 is protected, reducing the likelihood of damage to the transflector 5 caused by scratching, thereby extending the useful life of the transflector 5. In addition, the protective flange 134 surrounds at least a portion of the edge of the transflective optical element 5, which reduces the possibility of scratching or cutting by the edge of the transflective optical element 5 and improves the safety of the optical display 10.

In another embodiment of the present application, the mounting portion 13 may be omitted, the transflective optical element 5 may be directly fixed to the main housing 11, and the transflective optical element 5 may be accommodated in the main housing 11.

Referring to fig. 7, the housing 1 further includes a fixing post 14 and a light source positioning post 15 protruding on the mounting surface 1113. The fixing column 14 is used for fixedly connecting with the light source unit 3.

The light source unit 3 may be disposed in parallel with the mounting surface 1113, the position of the mounting surface 1113 corresponds to the position of the light source unit 3 in the optical path in the optical display 10, and during the assembly of the light source unit 3 with the housing 1, the mounting surface 1113 may position the light source unit 3 in the normal direction of the mounting surface 1113, thereby improving the positioning accuracy of the housing 1 for the light source unit 3 and improving the output quality of the imaging light in the optical display 10. In other embodiments of the present application, the light source unit 3 may be provided non-parallel to the mounting surface 1113.

And the light source positioning column 15 is used for positioning the light source unit 3.

Referring to fig. 8a and 8b, the housing 1 further includes a positioning portion 16 disposed on an inner wall of the main housing 11 for positioning the curved mirror 7.

In some embodiments of the present application, the number of the positioning portions 16 is plural, and the plural positioning portions 16 are provided on the inner wall of the main housing 11. The first, fourth and

fifth sidewalls

111, 114 and 115 are formed with positioning portions 16 on inner walls facing the inner cavity of the main housing 11. The locating portion 16 is of a generally trough-like configuration. For example, as shown in fig. 8b, the positioning portion 16 on the first sidewall 111 is a groove-shaped structure disposed on the first sidewall 111 and located in the main housing 11, and the positioning portion 16 on the fifth sidewall 115 is a groove structure recessed in the fifth sidewall 115 and located in the main housing 11. Each of the positioning portions 16 includes a first positioning surface 162 and a side surface 164. The first positioning surface 162 is provided toward the fitting opening 105 for attachment to the curved mirror 7 to improve the accuracy of fitting between the curved mirror 7 and the housing 1.

This application does not limit the structure of location portion 16, and location portion 16 can fix a position curved mirror 7 can, for example, can be through protruding a plurality of projections on the inner wall of main casing body 11, and a location portion 16 is enclosed to a plurality of projections, and location portion 16 can be limited the position of curved mirror 7 on shell 1 can.

In some embodiments of the present application, the normal direction of the first positioning surface 162 is the same as the normal direction of the assembling opening 105, and the first positioning surfaces 162 of the plurality of positioning portions 16 may be located on the same plane. In other embodiments of the present application, the first positioning surfaces 162 of the plurality of positioning portions 16 may or may not be parallel to each other. In other embodiments of the present application, the normal direction of the first positioning surface 162 and the normal direction of the mounting opening 105 may not be the same.

The housing 1 further includes a positioning post 18 protruding from the first positioning surface 162 for positioning the curved mirror 7.

The housing 1 further comprises a connection post 19 protruding from the first positioning surface 162 for fixedly connecting to the curved mirror 7.

In other embodiments of the present application, the housing 1 may not be an integrally molded case.

In other embodiments of the present application, the structure of the housing 1 is not limited, and for example, the mounting opening 103 and the mounting opening 105 may be located on the second portion 1103, and the housing 1 may fix the light source unit 3, the transflective optical element 5, and the curved mirror 7, so that the optical display 10 can output image light.

In another embodiment of the present application, the fitting opening 105 may be omitted, and the curved mirror 7 is fixedly housed in the housing 1.

According to the optical display 10 provided by the application, the light source unit 3, the transflective optical element 5 and the curved mirror 7 are integrated on the housing 1 to form a whole, and the relative positions of the light source unit 3, the transflective optical element 5 and the curved mirror 7 are determined by an optical principle, so that the display effect of the optical display 10 is ensured.

In some embodiments of the present application, the light source unit 3 employs a Liquid Crystal Display (LCD) imaging technology. The LCD imaging utilizes the photoelectric effect principle of liquid crystal, liquid crystal molecules change the arrangement state under the influence of an external electric field, and the liquid crystal molecules in different arrangement states can control the transmittance of light. For example, liquid crystal molecules are arranged between two polarizers with mutually perpendicular polarization directions, and when no electric field is applied, the liquid crystal molecules can rotate the polarization direction of linearly polarized light passing through the first polarizer by 90 degrees, and at the moment, light rays pass through the second polarizer at the maximum transmittance; when an electric field is applied, the arrangement state of the liquid crystal molecules is changed, the rotation angle of the polarized light is also changed, and the intensity of the light rays passing through the second polarizer is weakened. Each pixel point of the LCD display screen is composed of three primary colors, and the color image is displayed by controlling the intensity of the three primary colors. The present application does not limit the type of the light source unit 3, and for example, the light source unit 3 may also adopt a Digital Light Processing (DLP) technology, a laser scanning projection, and the like.

In some embodiments of the present application, referring to fig. 9, the light source unit 3 includes a light emitting region 301 and a non-light emitting region 302. The light emitting region 301 is for emitting imaging light. The non-light emitting region 302 may be a bezel of the light source unit 3. In some embodiments of the present application, the non-light-emitting region 302 is fixedly connected to the fixing posts 14.

A non-emissive area 302 is provided around the emissive area 301, with fastening holes 31 being provided in the non-emissive area 302. The number of the fastening holes 31 corresponds to the number of the fixing posts 14. The number of the fastening holes 31 is four, and the four fastening holes 31 are distributed at four corners of the light source unit 3. Referring to fig. 10a, the number of the fixing posts 14 is four. The fixing column 14 is a screw column, a threaded hole matched with the screw is formed in the fixing column 14, the screw penetrates through the fastening hole 31, and then the screw penetrates through the threaded hole of the fixing column 14, so that the light source unit 3 is fixed on the fixing column 14. The shape of the light source unit 3 is not limited in the present application, and may be, for example, a circle, an irregular shape, or the like, and the light source unit 3 may emit imaging light. In other embodiments of the present application, the fixing post 14 may be fixedly inserted into the fastening hole 31.

The non-light-emitting area 302 is provided with a positioning hole 33 for passing through the light source positioning post 15 to position the light source unit 3 on the housing 1.

In some embodiments of the present disclosure, the positioning hole 33 includes a first positioning hole 332 and a second positioning hole 334, the light source positioning column 15 includes a first light source positioning column 152 and a second light source positioning column 154, the first light source positioning column 152 passes through the first positioning hole 332, and the second light source positioning column 154 passes through the second positioning hole 334. In the arrangement direction of the first positioning holes 332 and the second positioning holes 334, the length of the first positioning holes 332 is greater than the length of the second positioning holes 334, for example, the second positioning holes 334 are circular holes, and the first positioning holes 332 are elongated holes having a length in the first direction greater than the diameter of the second positioning holes 334.

Ideally, the positioning holes 33 are matched with the light source positioning columns 15 in shape, and a preset distance (design distance) between two positioning holes 33 is the same as the preset distance between two light source positioning columns 15, for example, the positioning holes 33 are circular, and the light source positioning columns 15 are cylindrical. However, in practice, manufacturing errors inevitably exist, so that there is an error between the actual spacing between the light source positioning columns 15 and the preset spacing. This may cause the light source positioning posts 15 of the light source unit 3 not to be mounted in the corresponding positioning holes 33.

In the present application, in the arrangement direction of the first positioning holes 332 and the second positioning holes 334, the length of the first positioning holes 332 is greater than the length of the second positioning holes 334, and the first positioning holes 332 are left with an assembly margin for the light source unit 3 to be assembled on the housing 1, that is, when there is a certain difference between the actual distance between the first light source positioning posts 152 and the second light source positioning posts 154 and the preset distance, the light source unit 3 may also be assembled on the housing 1. For example, when the actual distance between the first light source positioning pillars 152 and the second light source positioning pillars 154 is larger than the preset distance, the first light source positioning pillars 152 can still be inserted into the first positioning holes 332, and the second light source positioning pillars 154 can still be inserted into the second positioning holes 334, so that the manufacturing accuracy requirements and the manufacturing cost of the housing 1 and the optical display 10 are reduced.

In other embodiments of the present application, the fixing post 14, the first light source positioning post 152, and the second light source positioning post 154 may be omitted, the light source unit 3 may be directly fixed on the mounting surface 1113 of the first sidewall 111, and the present application does not limit the fixing manner of the light source unit 3 and the housing 1, for example, the non-light-emitting region 302 of the light source unit 3 may be omitted, the light-emitting region 301 of the light source unit 3 is adhered to the first sidewall 111 by a glue, and the light source unit 3 covers the first sidewall 111.

In other embodiments of the present application, the light source unit 3 may be fixed outside the housing 1, that is, the mounting surface 1113 may be disposed on an outer side surface of the housing 1, for example, a light-transmitting region may be disposed on a sidewall of the housing 1, and the imaging light emitted from the light source unit 3 enters the inner cavity of the housing 1 through the light-transmitting region. The light-transmitting area can be a through hole or a transparent area.

Referring to fig. 9 and fig. 3 in combination, the light emitting region 301 includes a first light emitting region edge 3011 and a second light emitting region edge 3013 that are disposed opposite to each other, in some embodiments of the present application, the first light emitting region edge 3011 is disposed at an end of the light emitting region 301 close to the mounting opening 103, and the second light emitting region edge 3013 is disposed at an end of the light emitting region 301 away from the mounting opening 103. The imaging light L includes imaging light L1 and imaging light L2, and the two paths of imaging light define a divergence angle of light emitted from the light source unit 3. Here, the imaging light L1 exits from the first light emitting area edge 3011, and the imaging light L2 exits from the second light emitting area edge 3013.

The light emitting area 301 of the light source unit 3 has a light emitting surface, the transflective optical element 5 has a reflective surface, the light emitting surface of the light source unit 3 is disposed obliquely with respect to the reflective surface of the transflective optical element 5, and the imaging light emitted from the light emitting surface can be directly incident on the transflective optical element 5 without using other optical elements, thereby simplifying the internal optical path of the optical display 10 and the structure of the optical display 10.

Referring to fig. 3 and fig. 10b, the mounting opening 103 includes a first mounting edge 1031 and a second mounting edge 1033 disposed oppositely, the first mounting edge 1031 is located on an edge of the second side wall 112 away from an end of the mounting opening 105, and the second mounting edge 1033 is located on an edge of the third side wall 113 away from an end of the mounting opening 105. A first point on the first mounting edge 1031 and a second point on the second light-emitting region edge 3013 are located on the connecting line M. The first light emitting region edge 3011 is located on a first side of the connecting line M, and the second mounting edge 1033 is located on a second side of the connecting line M. When the user uses the optical display 10, the eye 80 is located on the first side where the first mounting edge 1031 is located, and the eye 80 is located above the connecting line M, so that the eye 80 does not directly see the light emitting region 301 (i.e., a bright spot) of the light source unit 3 when the user normally views the optical display, and stray light of the light source unit 3 is prevented from directly transmitting the transflective optical element 5 to reach human eyes (normally, the stray light is firstly reflected to the curved mirror 7 by the transflective optical element 5, and is reflected by the curved mirror 7 and then enters the human eyes through the transflective optical element 5), thereby improving the display effect of the optical display 10 and improving the use experience of the user.

As can be seen from fig. 3, the mounting opening 103 comprises a first mounting edge 1031, which may be referred to as an upper edge of the mounting opening 103, and a second mounting edge 1033, which may be referred to as a lower edge of the mounting opening 103. Correspondingly, the first light emitting region edge 3011 of the light emitting region 301 may be referred to as an upper edge of the light emitting region 301, and the second light emitting region edge 3013 may be referred to as a lower edge of the light emitting region 301.

The transflector 5 is capable of transmitting a portion of incident light onto the transflector 5 and reflecting a portion of the incident light. For example, a transflective optical element may transmit 50% of incident light, and a transflective optical element may reflect 50% of incident light; alternatively, the transflector element may transmit 30% of incident light and the transflector element may reflect 70% of incident light. The proportion of the total incident light transmitted by the transflective optical element 5 can be selected as desired. The material of the transflective optical element 5 may be glass, etc.

In the present embodiment, the curved mirror 7 is a mirror that matches a free-form surface required for optical imaging.

The surface type of an optical element adopted in the traditional optical design is a standard spherical surface, and a plurality of spherical mirrors are generally required to be matched for correcting aberration, so that the optical structure is complex and the occupied space is large.

With the development of the optical industry, the design and manufacturing technology of aspheric surfaces with more complex surface types is greatly improved, and aspheric surfaces generally refer to quadric surfaces such as paraboloids, ellipsoids, involute surfaces, hyperboloids and the like with revolving shafts and high-order curved surfaces, and non-revolving aspheric surfaces such as off-axis aspheric surfaces. According to different use scenes, one aspheric surface can usually replace two or more spherical surfaces to correct aberration, so that the optical structure is simplified, and miniaturization and light weight of an optical path are realized.

Compared with an aspheric surface, the free-form surface is an optical structure with a more complex surface type, the curvature radiuses of all points on the surface of the free-form surface are different, and the degree of freedom of the surface type is very high. The free-form surface can not only replace a plurality of aspheric surfaces to correct aberration, but also improve the optical quality to the maximum extent and simplify the optical structure. The optical free-form surface has a complex structure and high degree of freedom, has no definite expression definition, and is generally considered as an optical free-form surface without global rotational symmetry, a uniform optical axis and a plurality of curvature radii on the whole surface.

In other embodiments of the present application, the curved mirror 7 may also be a spherical mirror or an aspherical mirror, which is not limited in the present application.

Referring to fig. 11 and 12, the curved mirror 7 includes a mirror body 72, a connecting portion 74 and a positioning protrusion 76. The connecting portion 74 is disposed on the lens body 72 in a protruding manner, and the connecting portion 74 is accommodated in the positioning portion 16 and is used for matching and fixedly connecting with the positioning portion 16. The positioning protrusion 76 is protruded from the mirror body 72, and the positioning protrusion 76 is received in the positioning groove 106.

The mirror 72 includes a first edge 722, a second edge 724, a third edge 726, and a fourth edge 728. The first edge 722 and the second edge 724 are disposed opposite to each other along a first direction (e.g., an X direction shown in fig. 11 and 12). The third edge 726 is disposed opposite the fourth edge 728 along a second direction (e.g., the Y direction shown in fig. 11 and 12), which is different from the second direction. The normal direction of the first positioning surface 162 is a third direction (e.g., the Z direction shown in fig. 11 and 12), which is different from the first direction, and the third direction is different from the second direction. In this embodiment, the first direction is perpendicular to the second direction, the first direction is perpendicular to the third direction, and the second direction is perpendicular to the third direction. The first edge 722 is disposed on a side of the mirror 72 adjacent to the fourth sidewall 114, the second edge 724 is disposed on a side of the mirror 72 adjacent to the fifth sidewall 115, the third edge 726 is disposed on a side of the mirror 72 adjacent to the first sidewall 111, and the fourth edge 728 is disposed on a side of the mirror 72 adjacent to the third sidewall 113. In some embodiments of the present application, the light emitting region 301 of the light source unit 3 is located higher than the curved mirror 7 and the transflective optical element 5 in the second direction from the fourth edge 728 towards the third edge 726 of the curved mirror 7 (as shown in fig. 1 and 3).

In some embodiments of the present application, the number of the connection portions 74 is plural. Each connecting portion 74 is correspondingly received in one of the positioning portions 16, and is fixedly connected to the first positioning surface 162 in the positioning portion 16.

The first edge 722, the second edge 724, and the third edge 726 are all provided with a connecting portion 74 in a protruding manner, and each connecting portion 74 is correspondingly received in one positioning portion 16. Each connecting portion 74 is fixedly connected to the first positioning surface 162 in the positioning portion 16 through the connecting assembly 8. In this embodiment, one connecting portion 74 is protruded from each of the first edge 722 and the second edge 724, and two connecting portions 74 are protruded from the third edge 726. The four connecting portions 74 are located at approximately four corners of the mirror body 72.

The engagement between the coupling portions 74 on the first edge 722, the coupling portions 74 on the second edge 724, and the coupling portions 74 on the third edge 726, and the corresponding positioning portions 16 enables the curved mirror 7 to be positioned on the main housing 11.

Each connecting portion 74 is further provided with a groove 742 penetrating through the connecting portion 74 along the third direction for penetrating the positioning post 18. Referring to fig. 13 and 14, each positioning post 18 on the housing 1 is inserted into a groove 742 of one of the connection portions 74 for positioning the connection portion 74, thereby facilitating the assembly between the curved mirror 7 and the housing 1 and improving the assembly accuracy and the assembly efficiency of the optical display 10.

A second positioning surface 740 (shown in fig. 12) abutting or abutting against the first positioning surface 162 is disposed on one side of each connecting portion 74 facing the first positioning surface 162. The curved mirror 7 is provided with a reflective layer (e.g. a reflective coating) to form a reflective surface for reflecting the imaging light, which reflective surface may be located on the side of the curved mirror 7 facing the mounting opening 105, or on the side of the curved mirror 7 facing away from the mounting opening 105, i.e. facing the mounting opening 103. The second positioning surface 740 may or may not have a reflective layer. The first positioning surface 162 is parallel to and abuts against the second positioning surface 740, so that the curved mirror 7 is positioned in the third direction and the rotation of the curved mirror 7 around the first direction and the second direction is limited. In some embodiments of the present application, the second positioning surfaces 740 of the plurality of connection portions 74 are located on the same plane. In other embodiments of the present application, the first positioning surface 162 may be disposed non-parallel to the second positioning surface 740, and the second positioning surfaces 740 of the plurality of connection portions 74 may be disposed parallel or non-parallel.

Through the cooperation between the connecting portion 74 arranged on the edge of the mirror body 72 and the corresponding positioning portion 16, the curved mirror 7 is limited to rotate around three directions while being positioned in three directions, which is beneficial to further improving the position stability of the curved mirror 7 relative to the housing 1, and further improving the display quality of the optical display 10.

Due to the difference in the materials used, the curved mirror and other mating components (e.g., housing) of the optical display typically have different coefficients of thermal expansion, which makes the curved mirror susceptible to deformation caused by compression by the other mating components when the ambient temperature changes significantly. Taking the curved mirror and the housing as an example, in a case where the ambient temperature of the optical display is greater than a predetermined temperature (e.g., 70 degrees celsius), the curved mirror and the housing may deform due to thermal expansion, and the housing may press the curved mirror. Once the curved mirror is deformed, the optical path of the imaging light reflected by the deformed portion is distorted, which affects the imaging light output quality of the optical display.

In some embodiments of the present application, the curved mirror 7 has a coefficient of thermal expansion that is different from the coefficient of thermal expansion of the housing 1. In consideration of the thermal expansion factors of the housing 1 and the curved mirror 7, a clearance 700 (shown in fig. 14) is reserved between the edges of the curved mirror 7 (including the first edge 722, the second edge 724, the third edge 726, the fourth edge 728, and the edges of the connecting portions 74) to reserve a thermal expansion space between the curved mirror 7 and the housing 1, so as to reduce the possibility of deformation of the curved mirror 7 due to squeezing and improve the optical path stability of the optical display 10.

The reserved gap 700 includes a first reserved gap 701 and a second reserved gap 702. A first allowance space 701 is provided between the side 164 and the edge of the connection portion 74 to reserve a thermal expansion space for the connection portion 74 and the case 1.

The second clearance 702 is provided between the inner wall of the groove 742 of each connection portion 74 and the corresponding positioning column 18, so as to reserve a thermal expansion space for the positioning column 18 and the connection portion 74. In some embodiments of the present application, the mirror 72 has a greater length in the first direction than the mirror 72 in the second direction, and the curved mirror 7 may have a greater degree of thermal expansion in the first direction than in the second direction. Taking the positioning portion 16 on the fourth side wall 114 and the corresponding connecting portion 74 as an example, in the first direction, a second reserved gap 702 exists between a part of the inner wall of the groove 742 and the corresponding positioning post 18, and in the second direction, a part of the inner wall of the groove 742 and the corresponding positioning post 18 are tightly attached together, so as to reduce the possibility of deformation of the curved mirror 7 due to thermal expansion and improve the positioning accuracy of the positioning portion 16 on the connecting portion 74. In other embodiments of the present application, the length of the mirror 72 in the first direction is greater than or equal to the length of the mirror 72 in the second direction.

Referring to fig. 12, the positioning protrusion 76 is protruded from the fourth edge 728 of the mirror body 72, and the positioning protrusion 76 is received in the positioning groove 106 and is clamped with the inner wall of the positioning groove 106 for positioning the curved mirror 7 in the first direction, so as to improve the assembly efficiency and the assembly accuracy of the curved mirror 7 assembled on the housing 1. The shape of the positioning protrusion 76 may be square, conical, etc., and the shape of the positioning protrusion 76 is not limited in the present application. In other embodiments of the present application, the positioning protrusion 76 may be accommodated in the positioning groove 106.

The number and positions of the connecting portions 74 on the curved mirror 7 are not limited in the present application, and the number and positions of the positioning protrusions 76 on the edge of the mirror body 72 are not limited in the present application. For example, as shown in fig. 15a, in one possible implementation, the connecting portion 74 on the third edge 726 may be omitted, the connecting portion 74 on the first edge 722 is disposed near the third edge 726, the connecting portion 74 on the second edge 724 is disposed near the third edge 726, and two connecting portions 74 may protrude from the fourth edge 728. In one possible implementation, as shown in fig. 15b, the positioning protrusion 76 on the fourth edge 728 may be omitted, and the connecting portion 74 is not disposed on the fourth edge 728. In one possible implementation, as shown in fig. 15c, the connection 74 on the first edge 722 can be omitted, the connection 74 on the second edge 724 can be omitted, and the positioning protrusions 76 are provided on the third edge 726 and the fourth edge 728, so that the curved mirror 7 can be fixed on the housing by the positioning protrusions 76 engaging with the positioning grooves 106. As shown in fig. 15d, in one possible implementation, the first edge 722, the second edge 724, the third edge 726, and the fourth edge 728 are each provided with a positioning protrusion 76.

In other embodiments of the present application, the positioning column 18, the positioning portion 16, and the connecting column 19 may be omitted, and the connecting portion 74 is directly fixed to the housing 1 by gluing or other methods.

The present application does not limit the shape of the mirror 72, the number of edges of the mirror 72, and the number of the connecting portions 74, for example, in other embodiments of the present application, the mirror 72 may be circular, the number of edges of the mirror 72 may be one, the number of the connecting portions 74 may be one, and the connecting portions 74 are protruded on the mirror 72.

The present application does not limit the positioning protrusion 76 to be provided on the fourth edge 728, and the positioning protrusion 76 may be provided on the edge of the scope 72. In other embodiments of the present application, the positioning groove 106 and the positioning protrusion 76 may be omitted.

In other embodiments of the present application, the curved mirror 7 may not be accommodated in the inner cavity of the main housing 11, the curved mirror 7 is fixedly covered on the assembly opening 105, the positioning portion 16 may be disposed on the outer side of the housing 1, the first positioning surface 162 may be disposed on the outer side of the housing 1, and the positioning groove 106 may also be disposed on the outer side of the housing 1.

Referring to fig. 2b, fig. 11, fig. 16 and fig. 17, the number of the connecting elements 8 is plural. Each connecting assembly 8 includes a flexible bumper 82, a press tab 84, a first anchor 86 and a second anchor 88. The flexible cushion 82 is interposed between the connection portion 74 and the pressing piece 84, and the connection portion 74, the flexible cushion 82, and the pressing piece 84 are sequentially stacked. The first fixing member 86 is disposed through the pressing plate 84 and the groove 742 (shown in fig. 14) of the connecting portion 74 and is fixedly connected to one of the positioning posts 18, and the second fixing member 88 is disposed through the pressing plate 84 and is fixedly connected to one of the connecting posts 19. The first fixing member 86 and the second fixing member 88 both apply force to the pressing sheet 84, and the pressing sheet 84 presses the connecting portion 74 onto the first positioning surface 162, so as to realize the fixed connection between the housing 1 and the curved mirror 7. The flexible bumper 82 may also be located between the first mount 86 and the second mount 88. In other embodiments of the present application, the first fixing member 86 and the second fixing member 88 may be disposed through the flexible buffer 82, and the length of the flexible buffer 82 and the length of the pressing sheet 84 may be less than or equal to the length of the pressing sheet 84.

The flexible cushion 82 has elastic deformability. On one hand, the flexible buffer 82 can reduce the possibility of damage to the connection portion 74 due to the pressing of the pressing sheet 84, and on the other hand, the flexible buffer 82 can absorb vibration, thereby improving the shock resistance of the optical display 10 and further improving the quality of the output image light of the optical display 10. The flexible buffer 82 may be selected from adhesive tape, foam, silicone rubber, or other elastomeric materials. In some embodiments of the present application, the durometer of the sheeting 84 is greater than the durometer of the flexible bumper 82. The pressing sheet 84 may be, but is not limited to, one of a sheet metal part, a die-cast part, and a plastic part.

The pressing sheet 84 presses the curved mirror 7 onto the housing 1, so that the position of the curved mirror 7 is limited between the housing 1 and the pressing sheet 84, the position stability of the curved mirror 7 on the housing 1 is improved, the possibility that the curved mirror 7 is damaged due to large local stress is reduced, the service life of the curved mirror 7 is prolonged, and the use reliability of the optical display 10 is improved.

In some embodiments of the present application, the first fixing element 86 and the second fixing element 88 are screws, the positioning column 18 is provided with threaded holes, the connecting column 19 is provided with threaded holes, the first fixing element 86 is in threaded connection with the positioning column 18, the second fixing element 88 is in threaded connection with the connecting column 19, and the connecting column 19 can be, but is not limited to, one of a self-tapping screw column, a hot-melting nut, and an in-mold injection nut. First mounting 86, second mounting 88 all wear to locate preforming 84 and with shell 1 fixed connection, and compress tightly curved mirror 7 and be fixed in on shell 1, have improved joint strength and the connection stability between curved mirror 7 and the shell 1.

In some embodiments of the present application, the connection portion 74 and the positioning protrusion 76 may be omitted, and the curved mirror 7 is directly fixed to the housing 1 by the connection assembly 8.

In some embodiments of the present application, the positioning portion 16, the first positioning surface 162, the positioning column 18, and the connecting column 19 may be omitted from the housing 1, and the second fixing member 88 and the pressing sheet 84 may be omitted from the connecting assembly 8, and the flexible buffer 82 and the curved mirror 7 are directly fixed on the housing 1 through the first fixing member 86, for example, the first fixing member 86 may penetrate through the flexible buffer 82 and be fixedly connected with the housing 1.

In some other embodiments of the present application, the vehicle may be a truck, motorcycle, bus, boat, helicopter, lawn mower, recreational vehicle, playground vehicle, construction equipment, trolley, golf cart, train, cart, or the like, and the present application is not particularly limited.

As shown in fig. 18a, in one possible implementation manner, the optical display 10 in the present application is integrated into an on-board display, the on-board display may be installed at the seat back of the vehicle 1000, and the on-board display may also be installed at other positions such as a passenger seat position.

As shown in fig. 18b, the optical display 10 in fig. 18b is integrated in a Head-up display (HUD). The HUD can project navigation information, instrument information and the like in the front view range of the driver, and the driver is prevented from looking over the information by lowering his head, so that the driving safety is influenced. The vehicle further comprises a reflector 201 for projecting the imaging light projected by the HUD to the exterior of the vehicle. The reflector 201 may be a windshield. The imaging light projected by the HUD forms a virtual image on the outside of the vehicle after being reflected by the reflector 201. The types of HUD include, but are not limited to, windshields (Windshield, W) -HUD, augmented reality heads-up display (AR-HUD), and the like. Where the optical display 10 in fig. 18a protrudes from the seat back portion, the optical display may also be completely embedded in the seat back, i.e. not protruding from the seat back.

In yet another possible implementation, the optical display 10 in the present application may also be integrated in a vehicle lamp. Besides the illumination function, the car lamp can also realize an Adaptive Driving Beam (ADB), can project more complex figures such as characters, traffic signs and the like, can project pictures such as videos and the like, and can increase the function of assisting Driving or entertainment.

Referring to fig. 19, fig. 19 is a functional schematic diagram of a vehicle according to an embodiment of the present disclosure.

The vehicle may include various subsystems such as a sensor system 21, a control system 22, one or more peripherals 23 (one shown for example), a power supply 24, a computer system 25, and a display system 26, which may be in communication with each other. The display system 26 may include a display device provided by embodiments of the present application. The vehicle may also include other functional systems such as an engine system, a cabin, etc. that power the vehicle, and the application is not limited thereto.

The sensor system 21 may include a plurality of detecting devices, which can sense the measured information and convert the sensed information into an electrical signal according to a certain rule or output information in other required forms. As shown in fig. 19, the detection devices may include a Global Positioning System (GPS), a vehicle speed sensor, an Inertial Measurement Unit (IMU), a radar Unit, a laser range finder, a camera, a wheel speed sensor, a steering sensor, a gear sensor, or other elements for automatic detection, and the like, which are not limited in the present application.

Control system 22 may include several elements, such as a steering unit, a braking unit, a lighting system, an autopilot system, a map navigation system, a network time tick system, and an obstacle avoidance system, as illustrated. The control system 22 can receive information (such as vehicle speed, vehicle distance, etc.) sent by the sensor system 21, and realize functions of automatic driving, map navigation, etc.

Optionally, the control system 22 may further include components such as a throttle controller and an engine controller for controlling the vehicle speed, which are not limited in this application.

The peripheral device 23 may include several elements such as a communication system, a touch screen, a user interface, a microphone, and a speaker, among others. Wherein the communication system is used for realizing network communication between the vehicle and other devices except the vehicle. In practical applications, the communication system may employ wireless communication technology or wired communication technology to implement network communication between the vehicle and other devices. The wired communication technology may refer to communication between the vehicle and other devices through a network cable or an optical fiber, and the like.

Power source 24 represents a system that provides electrical or energy to a vehicle, which may include, but is not limited to, rechargeable lithium or lead-acid batteries, and the like. In practical applications, one or more battery assemblies in the power supply are used for providing electric energy or energy for starting the vehicle, and the type and material of the power supply are not limited in the present application.

Several functions of the vehicle may be controlled by the computer system 25. The computer system 25 may include one or more processors 2501 (illustrated as one processor for example) and memory 2502 (also referred to as storage devices). In practical applications, the memory 2502 may be also inside the computer system 25, or may be outside the computer system 25, for example, as a cache in a vehicle, and the present application is not limited thereto.

Among other things, the processor 2501 may include one or more general-purpose processors, such as a Graphics Processing Unit (GPU). The processor 2501 may be configured to operate the relevant programs or instructions corresponding to the programs stored in the memory 2502 to implement the corresponding functions of the vehicle.

Memory 2502 may include volatile memory (volatile memory), such as RAM; the memory may also include a non-volatile memory (non-volatile memory), such as a ROM, a flash memory (flash memory), a HDD, or a Solid State Disk (SSD); the memory 2502 may also comprise a combination of the above-described types of memory. The memory 2502 may be used to store a set of program codes or instructions corresponding to the program codes, so that the processor 2501 calls the program codes or instructions stored in the memory 2502 to implement the corresponding functions of the vehicle. In the present application, a set of program codes for controlling the vehicle can be stored in the memory 2502, and the processor 2501 can call the program codes to control the safe driving of the vehicle, and the details of how to implement the safe driving of the vehicle are described in the following text.

Optionally, the memory 2502 may store information such as road maps, driving routes, sensor data, and the like, in addition to program code or instructions. The computer system 25 may be combined with other elements of the functional block diagram of the vehicle, such as sensors in a sensor system, GPS, etc., to implement the relevant functions of the vehicle. For example, the computer system 25 may control the driving direction or driving speed of the vehicle based on the data input from the sensor system 21, and the like, but the present application is not limited thereto.

The display system 26 may interact with other systems within the vehicle, for example, it may display navigation information sent by the control system 22, or play videos sent by the computer system 25 and peripheral devices 23, etc. For the specific structure of the display system 26, reference is made to the above-mentioned embodiments of the display device, and details are not repeated here.

The four subsystems illustrated in the present embodiment, the sensor system 21, the control system 22, the computer system 25 and the display system 26, are only examples and are not limited. In practical applications, a vehicle may combine several elements in the vehicle according to different functions, thereby obtaining subsystems with corresponding different functions. In practice, the vehicle may include more or fewer subsystems or components, and the application is not limited thereto.

The vehicle in the embodiment of the present application may be a known vehicle such as an automobile, an airplane, a ship, a rocket, or may be a vehicle newly appearing in the future. The vehicle may be an electric vehicle, a fuel vehicle, or a hybrid vehicle, for example, a pure electric vehicle, an extended range electric vehicle, a hybrid electric vehicle, a fuel cell vehicle, a new energy vehicle, and the like, which is not specifically limited in this application.

While the application is not limited to the application of the optical Display 10 to the vehicle 1000, the optical Display 10 may be applied to other devices, and in one possible application scenario, the optical Display in the application is integrated with a Near Eye Display (NED) device, the NED device may be, for example, an AR device or a VR device, the AR device may include, but is not limited to, AR glasses or an AR helmet, and the VR device may include, but is not limited to, VR glasses or a VR helmet. Referring to fig. 20, taking AR glasses as an example, a user may wear the AR glasses device to play a game, watch a video, participate in a virtual meeting, or perform video shopping.

In another possible application scenario, the optical display 10 of the present application is integrated into a projector, which can project an image onto a wall or a projection screen, see fig. 21.

The application scenarios given above are merely examples, and the optical display provided in the present application may also be applied in other possible scenarios, such as medical equipment, and the present application is not limited thereto.

Directional phrases used in this application, such as, for example, "upper," "lower," "front," "rear," "left," "right," "inner," "outer," "side wall," and the like, refer only to the orientation of the appended drawings and are therefore used in order to better and more clearly illustrate and understand the present application and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation and is therefore not to be considered limiting of the present application.

Moreover, the ordinal numbers used herein to describe the components, such as "first," "second," etc., are used solely to distinguish one from another as to what is described and do not have any sequential or technical meaning. The term "connected" and "coupled" as used herein includes both direct and indirect connections (couplings), unless otherwise specified.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An optical display, comprising:

the shell is provided with a first positioning surface;

a light source unit fixed to the housing for emitting imaging light; and

the curved mirror comprises a mirror body and a connecting part convexly arranged on the mirror body, the mirror body is used for reflecting the imaging light to the outside of the shell, and the connecting part is fixedly connected with the first positioning surface.

2. The optical display of claim 1,

the connecting part is provided with a groove, the shell further comprises a positioning column which is convexly arranged on the first positioning surface, and the positioning column penetrates through the groove.

3. The optical display of claim 2,

a reserved gap is reserved between the inner wall of the groove and the positioning column.

4. The optical display of claim 2,

the shell further comprises a positioning part arranged on the shell, the first positioning surface is arranged on the inner wall of the positioning part, and the connecting part is contained in the positioning part.

5. The optical display according to claim 4,

the inner wall of the positioning portion further comprises a side face connected with the first positioning face, and a reserved gap is reserved between the side face and the edge of the connecting portion.

6. The optical display of claim 2,

the quantity of connecting portion is a plurality of, the mirror body includes first edge, second edge, third edge and fourth edge, first edge with the second edge sets up along the first direction relatively, the third edge with the fourth edge sets up along the second direction relatively, the first direction is different from the second direction, first edge the second edge reaches the third edge all is equipped with connecting portion, recess on the connecting portion link up along the third direction connecting portion, the third direction is different from the first direction, the third direction is different from the second direction.

7. The optical display of claim 2,

the optical display further comprises a connecting assembly, the connecting assembly comprises a pressing sheet and a first fixing piece, the curved mirror is located between the pressing sheet and the shell, the first fixing piece penetrates through the pressing sheet and the positioning column, and the pressing sheet presses the curved mirror onto the shell.

8. The optical display of claim 7,

the shell still includes protruding locating spliced pole on the first locating surface, coupling assembling still includes the second mounting, the second mounting with spliced pole fixed connection.

9. The optical display of claim 7,

the connecting assembly further comprises a flexible buffer member, and the flexible buffer member is located between the pressing sheet and the connecting portion.

10. The optical display of claim 1,

the curved mirror comprises a mirror body and a positioning convex part convexly arranged on the edge of the mirror body, and the positioning convex part is contained in the positioning groove.

11. The optical display according to any one of claims 1 to 10,

the shell is provided with an assembly port communicated with the inner cavity of the shell, the curved mirror is arranged at the assembly port,

the optical display also comprises a cover body, and the cover body is fixedly connected with the shell and covers the curved mirror.

12. A chair comprising an optical display according to any one of claims 1 to 11, mounted on the chair.

13. A vehicle comprising an optical display according to any one of claims 1 to 11 mounted on the vehicle.