CN218141320U

CN218141320U - Optical display, seat and vehicle

Info

Publication number: CN218141320U
Application number: CN202221071702.5U
Authority: CN
Inventors: 李敬科; 刘渊恪
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-04-29
Filing date: 2022-04-29
Publication date: 2022-12-27
Anticipated expiration: 2032-04-29

Abstract

The application provides an optical display, a seat and a vehicle. An optical display includes: the display device comprises a display main body, a light source and a light source, wherein the display main body comprises a light emergent part, a back part and a connecting part, the light emergent part and the back part are oppositely arranged along a first direction of the display main body, and the connecting side part is connected between the light emergent part and the back part; and the pitching mechanism is connected with the connecting side part and is used for driving the display main body to rotate around a first rotating axis arranged along a second direction, and the second direction of the display main body is different from the first direction of the display main body. The pitching mechanism is connected with the connecting side portion, so that the occupied space of the display main body in the first direction (the thickness direction of the display main body) is reduced, the occupied space of the optical display in the thickness direction is reduced, and the optical display can be installed in a narrow installation space.

Description

Optical display, seat and vehicle

Technical Field

The present application relates to the field of display body technology, and more particularly, to an optical display, a seat and a vehicle.

Background

A conventional lcd is usually provided with a tilting mechanism at the back of the screen (light-emitting side) away from the lcd to meet the viewing requirements of different users. Unlike the lcd, the optical display requires a larger optical path cavity (optical cavity for short) for optical imaging, which makes the overall thickness of the optical display in the thickness direction (e.g. along the normal direction of the light emergent portion) larger. If the tilt mechanism is provided on the back of the optical display, the occupied space of the apparatus in the thickness direction increases, which is disadvantageous for installation and application of the optical display in a narrow limited installation space (for example, in a vehicle).

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides an optical display, a seat and a vehicle which reduce the occupied space in the thickness direction.

In a first aspect, the present application provides an optical display comprising: the display device comprises a display main body, a light source and a light source, wherein the display main body comprises a light emergent part, a back part and a connecting part, the light emergent part and the back part are oppositely arranged along a first direction of the display main body, and the connecting side part is connected between the light emergent part and the back part; and the pitching mechanism is connected with the connecting side part and is used for driving the display main body to rotate around a first rotating axis arranged along a second direction, and the second direction of the display main body is different from the first direction of the display main body.

The display main body is provided with the pitching mechanism, so that a user can select the pitching angle of the display main body according to needs, and the use convenience of the user is improved.

The pitching mechanism is connected with the connecting side portion, avoids the back portion of the display main body, reduces the space occupied by the pitching mechanism on the first direction (the thickness direction of the display main body) of the display main body, reduces the occupied space of the optical display on the first direction, and is beneficial to installing the optical display in a narrow installation space.

According to the first aspect, in a possible implementation manner, the pitching mechanism includes a first transmission structure and a second transmission structure which are connected, the second transmission structure is connected with the connecting side portion, and the first transmission structure is used for driving the second transmission structure to move.

The first transmission structure and the second transmission structure are used for transmission, so that the layout flexibility of the pitching mechanism on the connecting side part of the display main body is improved.

According to a first aspect, the pitch mechanism further comprises a driving element, the driving element is connected with the first transmission structure, and the driving element is used for driving the first transmission structure to move.

The driving piece drives the first transmission structure to be connected, the pitching angle of the display main body is automatically rotated, the pitching rotation precision of the display main body is improved, and the operation convenience of the optical display is also improved.

According to the first aspect, in a possible implementation, the second transmission structure is fixedly connected with the connecting side portion, and the second transmission structure is capable of rotating around a second rotation axis; the rotation of the first transmission structure drives the second transmission structure and the display main body to rotate.

The rotating motion of the first transmission structure around the second rotating axis is converted into the rotating motion of the second transmission structure and the display main body around the first rotating axis, so that the occupied space of the pitching mechanism is reduced.

According to a first aspect, in a possible implementation, the first transmission structure comprises a worm, the second transmission structure comprises a worm wheel, and the first transmission structure is engaged with the second transmission structure.

The cooperation between the worm gear possesses self-locking function, can realize that the demonstration main part can hover at every single move within range arbitrary angle, has improved the positional stability who shows the main part, even show that the main part constantly by the circumstances of vibrations (for example optical display installs in the vehicle, and the vehicle is under the road conditions of jolting) still can keep showing the main part positional stability, do not rock and produce the abnormal sound, improved optical display's use reliability.

According to the first aspect, in a possible implementation manner, the worm includes a worm rod head and a rod body, the worm rod head is fixedly connected with the second transmission structure, and one end of the rod body, which is far away from the worm rod head, is used for being connected with the driving member.

The driving piece is connected with the rod body to drive the worm head to rotate. For example, when the optical display is mounted in a seat, the area where the light-emitting portion is located is generally the area where the headrest is located, so that the light-emitting portion is viewed in a planar manner from the viewer. However, the operation of the driving member generally generates certain vibration and noise, and if the driving member is disposed closely to the area where the headrest is located, there is a high possibility that the user sitting on the seat may experience a poor feeling. Through the setting of the body of rod, make the regional certain distance in driving piece interval headrest place, be favorable to reducing the driving piece and influence the person of taking on the seat.

In one possible embodiment, the back and connecting sides of the display body together enclose an interior cavity in which the curved mirror and the light source unit are located.

According to a first aspect, in a possible implementation form, the first transmission structure is engaged with the second transmission structure; every single move mechanism still includes intermeshing's first toper steering gear and second toper steering gear, first toper steering gear with the driving piece is connected, second toper steering gear with first transmission structure fixed connection, the driving piece is used for the drive first toper steering gear rotates, first toper steering gear rotates and drives second toper steering gear rotates, and then drives first transmission structure rotates.

The arrangement of the first conical steering gear and the second conical steering gear can flexibly change the placement position of the driving piece, for example, the connecting side part comprises a first side part, a second side part, a third side part and a fourth side part, the first side part and the second side part are oppositely arranged along the second direction of the display main body, the third side part and the fourth side part are oppositely arranged along the third direction of the display main body, the driving piece is arranged on one side of the third side part or the fourth side part of the display main body, the requirement on the length of the driving piece in the second direction is reduced, for example, a speed reducing motor can be adopted, the requirement on the pitching adjusting moment of the display main body is met by reducing the speed and increasing the moment, and the cost of the driving piece is favorably reduced.

According to the first aspect, in one possible implementation, the first transmission structure comprises a first gear wheel, which is connected with the driving member; the second transmission structure comprises a sector gear fixedly connected with the connecting side part, and the sector gear is meshed with the first gear.

And the fan-shaped gear is adopted for transmission, so that the structural compactness of the optical display is improved.

According to the first aspect, in a possible implementation manner, the first transmission structure includes a first gear fixedly connected to the driving member, the second transmission structure includes a curved tooth disposed on the connecting side portion, the curved tooth is engaged with the gear, and the driving member is configured to drive the first gear to rotate so as to drive the display main body to rotate.

The arc tooth part is arranged on the connecting side part, namely the arc tooth part and the display main body are integrated, so that the arc tooth part does not occupy the space outside the display main body, the structure of the optical display is simplified, and the occupied space of the optical display is reduced.

According to the first aspect, in a possible implementation manner, the first transmission structure includes a first pulley, the first pulley is connected to the driving member, the second transmission structure includes a second pulley, the second pulley is fixedly connected to the connecting side portion, the pitching mechanism further includes a transmission belt, the transmission belt is sleeved on the first pulley and the second pulley, the driving member is configured to drive the first pulley to rotate, and the transmission belt drives the second pulley to rotate.

The belt wheel and the transmission belt are adopted for transmission, so that the installation between the pitching mechanism and the display main body is facilitated.

According to the first aspect, in a possible implementation manner, the second transmission structure is connected to the connection side portion, the second transmission structure is connected to the first transmission structure in a sliding manner, and the driving member is configured to drive the first transmission structure to move along a fourth direction, so that the second transmission structure drives the display main body to rotate.

The fourth direction may be an axial direction of the output shaft of the driver. The linear motion of the driving piece is converted into the rotary motion of the display main body, so that the occupied space of the pitching mechanism is reduced.

According to the first aspect, in a possible implementation manner, a sliding groove is formed in the first transmission structure, and the second transmission structure is arranged in the sliding groove in a penetrating manner and is in sliding connection with the sliding groove. The sliding groove guides the sliding of the second transmission structure relative to the first transmission structure, and the smoothness of the display main body in the adjusting process of the pitching angle is improved.

According to the first aspect, in a possible implementation manner, the pitch mechanism further comprises a lead screw, and the first transmission structure is in threaded connection with the lead screw; the driving piece is used for driving the screw rod to rotate.

The screw rod transmission is adopted, so that the precision of the pitching angle of the pitching mechanism adjusting display main body is improved.

According to the first aspect, in a possible implementation manner, the driving element includes a driving body and an output shaft, the driving body drives the output shaft to make a linear motion, and the first transmission structure is disposed on the output shaft, which is beneficial to reducing an occupied space of the pitching mechanism. The driving piece can adopt a push rod motor, an air cylinder and the like.

According to the first aspect, in a possible implementation manner, the driving member is an air cylinder, and the pitching mechanism further includes an air pump and an air feed pipe, wherein the air feed pipe is connected between the driving body and the air pump.

And the cylinder is adopted for transmission, so that the cost of the driving piece is reduced.

According to the first aspect, in a possible implementation manner, the pitching mechanism further comprises a noise reduction piece, and the noise reduction piece wraps the outer surface of the driving piece, so that vibration and noise generated by the driving piece are reduced.

According to the first aspect, in a possible implementation manner, the pitching mechanism further comprises a vibration isolation member, and the vibration isolation member is arranged on the driving member to reduce the vibration generated by the driving member.

According to the first aspect, in a possible implementation manner, the connection side portion includes a first side portion, a second side portion, a third side portion, and a fourth side portion, which are connected to each other, the first side portion and the second side portion are oppositely disposed along the second direction of the display main body, the third side portion and the fourth side portion are oppositely disposed along the third direction of the display main body, and the driving member is located on one side of the first side portion of the display main body, the second side portion of the display main body, the third side portion of the display main body, or the fourth side portion of the display main body. The third direction is different from the first direction, and the third direction is different from the second direction.

The driving piece is located the connection lateral part of showing the main part, when not occupying the space of the thickness direction of showing the main part, has improved the utilization ratio that shows other side idle spaces of main part.

According to the first aspect, in a possible implementation manner, the optical display further includes a support frame, the pitching mechanism is rotatably connected between the display main body and the support frame bracket, and the support frame supports the display main body and is used for improving the stability of the movement of the display main body.

According to the first aspect, in a possible implementation manner, the pitching mechanism further comprises a rotating shaft, the rotating shaft is rotatably connected with the supporting frame, and the rotating shaft is fixedly connected with the second transmission structure.

According to the first aspect, in a possible implementation manner, the rotating shaft is a spline shaft, the second transmission structure is provided with spline grooves, and the rotating shaft is in spline fit with the spline grooves to prevent the rotating shaft from rotating relative to the second transmission structure.

According to the first aspect, in a possible implementation manner, the pitching mechanism includes a driving member, the driving member includes a driving body and an output shaft rotationally connected to the driving body, the driving body is fixed to the supporting frame, the output shaft is fixedly connected to the connecting side, and the driving body is configured to drive the output shaft to rotate.

The driving piece is directly connected with the support frame and the connecting side in a fixed connection mode, the structure of the optical display is simplified, the number of elements of the optical display is reduced, and the optical display is convenient to assemble.

According to the first aspect, in a possible implementation manner, the pitching mechanism further includes an enclosure fixed to the support frame, and the pitching mechanism is accommodated in the enclosure.

The pitching mechanism is contained in the packaging shell, and the packaging shell can achieve the effects of dust prevention, noise reduction, vibration resistance, shock resistance and the like.

According to the first aspect, in one possible implementation, the center of gravity of the display body is located on the first rotation axis to improve the stability of the balance of the display body 32 when rotating around the first rotation axis.

According to a first aspect, in one possible implementation manner, the display main body includes a housing, a light source unit, and a curved mirror, and the back portion, the light exit portion, and the connection side portion are provided on the housing; the light source unit is fixed on the connecting side part and used for outputting imaging light; the curved mirror is fixed on the connecting side part or the back part and used for reflecting the imaging light to the outside of the shell through the light emergent part.

Because the light source unit and the curved mirror are not directly fixed on the same shell through other adapters (such as respective fixed frame bodies), the number of elements of the optical display is reduced, the assembly difficulty of the optical display is reduced, the assembly precision of the optical display is improved, the structure of the optical display is simplified, and the improvement of the precision of a light path system of the optical display and the improvement of the output quality of imaging light of the optical display are facilitated.

According to the first aspect, in a possible implementation manner, the display main body further includes a transflective optical element, the transflective optical element is fixedly covered on the light emergent portion and is configured to transmit and reflect the imaging light, the imaging light emitted by the light source unit is reflected to the curved mirror through the transflective optical element, and the curved mirror transmits the incident imaging light to the outside of the housing through the transflective optical element.

In a second aspect, the present application provides a seat, comprising a seat body and the optical display according to the first aspect, wherein the seat body comprises an accommodating cavity, at least a portion of the display body is accommodated in the accommodating cavity, and the pitching mechanism is accommodated in the accommodating cavity.

The pitching mechanism does not increase the size of the display main body in the thickness direction, and the whole thickness of the optical display is compressed to be extremely optical, so that the optical display is successfully integrated into a limited accommodating cavity in the seat.

According to the second aspect, in one possible implementation, the seat body further includes a headrest area and a resting area, and the display body is located in the headrest area so that the light emergent portion can be flush with eyes of a viewer.

In a third aspect, the present application provides a vehicle comprising an optical display according to the first aspect mounted on the vehicle.

The pitching mechanism does not increase the size of the display main body in the thickness direction, and the whole thickness of the optical display is compressed to be optical, so that the optical display is successfully integrated into the limited installation space of a vehicle.

Drawings

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

fig. 2 is a schematic view of an application scenario of a first seat according to an embodiment of the present application;

FIG. 3 is a perspective cross-sectional view of a first seat provided in accordance with a first embodiment of the present application;

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

fig. 5 is a perspective cross-sectional view of a part of the structure of an optical display provided in the first embodiment of the present application;

FIG. 6 is a schematic diagram of an optical path of an optical display provided in a first embodiment of the present application;

fig. 7 is a schematic perspective view of a housing provided in the first embodiment of the present application;

fig. 8 is a schematic view of an application scenario of an optical display according to a first embodiment of the present application;

FIG. 9 is a perspective cross-sectional view of a first seat provided by a first embodiment of the present application;

fig. 10 is a schematic perspective assembly view of a console panel and a framework according to a first embodiment of the present application;

fig. 11a is a schematic perspective view of a master controller according to a first embodiment of the present application;

fig. 11b is a perspective view of another view of the master controller according to the first embodiment of the present application;

fig. 12 is a schematic view illustrating a scenario where a control panel is mounted on a vehicle door according to an embodiment of the present application;

FIG. 13a is a schematic perspective view of a first seat provided in accordance with a second embodiment of the present application;

FIG. 13b is a schematic perspective view of the optical display and the frame shown in FIG. 13 a;

FIG. 13c is a schematic perspective exploded view of a portion of the structure and the frame of the optical display shown in FIG. 13 b;

FIG. 13d is a perspective exploded view of the optical display and the frame shown in FIG. 13 b;

FIG. 13e is an exploded view of a portion of the tilt mechanism of the optical display shown in FIG. 13 d;

FIG. 14 is a schematic perspective view of an optical display including a multi-start worm provided in accordance with an embodiment of the present application;

FIG. 15a is a schematic perspective view of a first seat provided in one possible implementation of the present application;

FIG. 15b is a schematic perspective view of a first seat provided in one possible implementation of the present application;

FIG. 15c is a schematic perspective view of a first seat provided in one possible implementation of the present application;

FIG. 16a is a schematic perspective view of a first seat provided in one possible implementation of the present application;

FIG. 16b is a rear view of the first seat shown in FIG. 16 a;

FIG. 16c is a cross-sectional view of the first seat shown in FIG. 16B taken along line B-B;

figure 17a is a schematic perspective view of a first seat provided by a third embodiment of the present application;

FIG. 17b is an exploded perspective view of the optical display of the first seat shown in FIG. 17 a;

figure 18a is a schematic perspective view of a first seat provided by a fourth embodiment of the present application;

FIG. 18b is an exploded perspective view of the optical display of the first seat shown in FIG. 19 a;

FIG. 19a is a schematic perspective view of a first seat provided in a fifth embodiment of the present application;

FIG. 19b is an exploded perspective view of the optical display of the first seat shown in FIG. 19 a;

figure 20a is a schematic perspective view of a first seat provided by a sixth embodiment of the present application;

FIG. 20b is a perspective view of a portion of the optical display of the first chair shown in FIG. 20 a;

FIG. 20c is an enlarged view of a portion of FIG. 20 b;

fig. 21a is a schematic perspective view of a first seat provided in a seventh embodiment of the present application;

FIG. 21b is a perspective view of a portion of the optical display of the first seat shown in FIG. 21 a;

figure 22a is a schematic perspective view of a first seat provided by an eighth embodiment of the present application;

FIG. 22b is a perspective view of a portion of the optical display of the first chair shown in FIG. 22 a;

figure 23a is a schematic perspective view of a first seat provided by a ninth embodiment of the present application;

FIG. 23b is a perspective view of a portion of the optical display of the first chair shown in FIG. 23 a;

FIG. 23c is an enlarged view of a portion of the optical display shown in FIG. 23 b;

figure 24a is a schematic perspective view of a first seat provided in a tenth embodiment of the present application;

FIG. 24b is a perspective view of a portion of the optical display of the first seat shown in FIG. 24 a;

figure 25a is a schematic perspective view of a first seat provided in an eleventh embodiment of the present application;

FIG. 25b is a perspective view of a portion of the optical display of the first seat shown in FIG. 25 a;

FIG. 26 is an exploded isometric view of a first seat provided in accordance with a twelfth embodiment of the present application;

FIG. 27 is a functional block diagram of a vehicle provided in an embodiment of the present application;

FIG. 28 is a schematic view of an optical display integrated with a near-eye device according to the present application;

fig. 29 is a schematic view of an optical display integrated with a projector according to 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 includes a vehicle body 200 and a seat mounted on the vehicle body 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 tool body 200. The second seat 500 is a rear seat arranged 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.

Referring to fig. 2, the first seat 300 includes a seat body 301 and an optical display 303 mounted on the seat body 301. In the present application, an occupant seated in the second seat 500 viewing the optical display 303 is referred to as a viewer. It will be appreciated that the optical display 303 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. 3, the seat body 301 further includes a frame 3015 and a cover 3016. The frame 3015 is used for shaping the first seat 300 and for bearing. The covering 3016 covers the frame 3015, so that the first seat 300 forms a receiving cavity 3017. The shroud 3016 typically includes a flexible filler to improve the comfort of a user sitting in the first seat 300. The receiving cavity 3017 is used to receive the optical display 303.

The seat body 301 also includes a headrest region 3018 and a rest region 3019. The headrest region 3018 corresponds to a head region where the seat main body 301 supports the occupant. The rest zone 3019 corresponds to other areas of the seat body 301. The optical display 303 is located in the headrest region 3018 of the first seat 300 to enable a viewer on the second seat 500 to keep looking straight with the optical display 303, improving the viewing comfort of the viewer.

At least a portion of the optical display 303 is housed in the housing cavity 3017, and the optical display 303 can be exposed from the cover 3016 to output imaging light bearing image information to the outside of the seat main body 301. The optical display 303 includes a support frame 31, a display body 32 enclosure 34, a tilt mechanism 35, and electrical components 37.

The support frame 31 is fixed to the frame 3015 of the first seat 300 and is received in the receiving cavity 3017 to support the display main body 32. The display body 32 is received in the receiving cavity 3017 and is located in the headrest area 3018. Referring to fig. 3 and 4, the display main body 32 is rotatably connected to the supporting frame 31 for outputting the imaging light carrying the image information. The enclosure 34 is fixed on the support frame 31 for accommodating and protecting the pitching mechanism 35, and has the functions of dust prevention, noise reduction, vibration resistance, impact resistance, and the like. The tilt mechanism 35 is housed in the package case 34. Pitching mechanism 35 is connected between support frame 31 and display subject 32, and pitching mechanism 35 is used for driving display subject 32 and rotates relative to support frame 31 to adapt to the demand that different height crowds, different position of sitting even stand and watch, improved user's convenience of use. The electrical part 37 is provided on the first seat 300 and located outside the display main body 32, for supplying power to the display main body 32 and inputting image signals, etc.

When the optical display 303 is installed in the first seat 300, the space inside the first seat 300 that can be reserved for the optical display is limited and relatively dispersed due to the complex framework structure of the in-vehicle seat. In the thickness direction of the first seat 300 (the arrangement direction of the first seat 300 and the second seat 500), the installation space reserved for the optical display 303 is very limited. The optical display 303 requires a large optical cavity for optical imaging.

Compared with the conventional optical display in which the electrical component and the optical component are arranged in the same cavity, in the present application, the electrical component 37 is arranged outside the display main body 32, and does not occupy the internal space of the display main body 32, that is, the electrical component 37 and the internal optical element of the display main body 32 are arranged in a separated cavity, which is beneficial to reducing the occupied space of the optical cavity of the display main body 32 and the miniaturization of the display main body 32. The display main body 32, the electrical components 37, and other components can be mounted and laid out according to the internal space of the accommodating cavity 3017, so that the flexibility of mounting the optical display 303 is improved, and the space utilization rate of the accommodating cavity 3017 in the first seat 300 is also improved.

Also, the electrical components 37 generate heat during operation, and since the electrical components 37 are disposed outside the display main body 32, a heat dissipation structure for dissipating heat from the electrical components 37 does not need to be provided on the display main body 32. Because the display main body 32 is not provided with a heat dissipation structure, the reflection times of the stray light in the internal light path of the display main body 32 are reduced, which is beneficial to improving the output quality of the imaging light output by the display main body 32 and improving the display quality of the optical display 303.

The supporting frame 31 includes a supporting portion 311, a first supporting arm 313 and a second supporting arm 315. The supporting portion 311 is connected between the first supporting arm 313 and the second supporting arm 315. The enclosure 34 is fixed to the first support arm 313. The package 34 is positioned between the first support arm 313 and the display body 32. The tilt mechanism 35 is connected between the first support arm 313 and the display main body 32. The first support arm 313 and the second support arm 315 may be fixed to the framework 3015 by welding or fastening, and the fixing manner between the support frame 31 and the framework 3015 is not limited in this application. In another embodiment of the present application, the support frame 31 may be omitted, and the display main body 32 may be directly connected to the frame 3015 or the like in a rotatable manner.

Referring to fig. 5, the main body 32 includes a housing 1, a light source unit 3, a transflective optical element 5 and a curved mirror 7. The housing 1 is provided with an inner cavity 101. The light source unit 3 is fixed to the housing 1 and accommodated in the cavity 101, for emitting imaging light. A transflective optical element 5 is fixed to the housing 1 for transmitting and reflecting the imaging light. The transflective optical element 5 is exposed outside the seat main body 301 to enable a head-up with a viewer. The transflective optical device 5 is a light-emitting surface of the display main body 32. The curved mirror 7 is fixed to the housing 1 and reflects the imaging light. The electrical components 37, the enclosure 34 and the pitch mechanism 35 are located outside the interior cavity 101. The housing 1, the light source unit 3, the transflective optical element 5, and the curved mirror 7 together enclose an optical path cavity (simply referred to as an optical cavity) of the optical display 303 to form an optical path of the imaging light inside the display main body 32. It is to be understood that the present application is not limited to the structure of the display body 32, and the display body 32 may include other optical elements, such as a mirror, etc.

As shown in fig. 6, the imaging light emitted from the light source unit 3 is reflected to the curved mirror 7 through the optical transflector 5, and the imaging light reflected by the curved mirror 7 is transmitted to the outside of the housing 1 through the optical transflector 5. Among them, the light source unit 3 may be referred to as an image source. The transflective optical element 5 may reflect the imaging light emitted from the light source unit 3 to the curved mirror 7, and the imaging light reflected by the transmissive curved mirror 7 is transmitted to the outside of the housing 1 through the transflective optical element 5 and then enters the eye 80, and the eye 80 sees an enlarged virtual image. The virtual image is viewable by the eyes 80 and need not be received by the light sheet. As shown in fig. 6, 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.

In the present application, since the light source unit 3, the transflective optical element 5, and the curved mirror 7 are not directly fixed to the same housing 1 through other adapters (e.g., respective fixing frames), the number of elements of the optical display 303 is reduced, the assembly difficulty of the optical display 303 is reduced, the assembly precision of the optical display 303 is improved, the structure of the optical display 303 is simplified, and thus, the improvement of the precision of the optical path system of the optical display 303 is facilitated, and the output quality of the imaging light of the optical display 303 is improved.

The relative positions of the light source unit 3, the transflective optical element 5, and the curved mirror 7 are determined by optical principles, which is advantageous for improving the display effect of the optical display 303. The components of the optical component (the light source unit 3, the transflective optical element 5, and the curved mirror 7) are integrated in the housing 1, and the electrical component 37 is located outside the housing 1, which is beneficial to the design of sealing (including a dustproof and waterproof structure) for the optical component and the electrical component 37 according to the protection level required by each of the optical component and the electrical component, and effectively prevents large particulate matters from entering the inner cavity 101 of the housing 1, thereby ensuring the display effect of the optical display 303.

In some embodiments of the present application, the housing 1 includes a light exit portion 11, a back portion 13, and a connecting side portion 15. The light emergent portion 11, the back portion 13 and the connecting side portion 15 together enclose an inner cavity 101. The light exit portion 11 and the back portion 13 are disposed opposite to each other in a first direction (X direction shown in fig. 3 and 6) of the display main body 32. In the present embodiment, the light emitting portion 11 includes a light transmitting area communicating with the cavity 101. The light exit portion 11 has a normal direction along the first direction. The curved mirror 7 and the light source unit 3 are located in the inner cavity 101. The transflective optical element 5 is fixedly covered on the light emergent portion 11, and the curved mirror 7 is positioned between the back portion 13 and the transflective optical element 5 in the first direction of the display main body 32. The connecting side portion 15 is connected between the light exit portion 11 and the back portion 13. The tilting mechanism 35 is connected to the connecting side portion 15 (as shown in fig. 3) and is configured to rotate the display main body 32 relative to the support frame 31 about a first rotation axis arranged along a second direction (Y direction shown in fig. 3) of the display main body 32. The curved mirror 7 is fixed to the connecting side portion 15 or the back portion 13, and is used for reflecting the imaging light reflected by the transflective optical element 5 to the outside of the housing 1 through the light exit portion 11 for the user to watch.

Because the pitching mechanism 35 is connected with the connection side portion 15, the pitching mechanism 35 avoids the back portion 13, and further occupies or does not occupy the space of the display main body 32 in the first direction (thickness direction), so that the occupied space of the optical display 303 in the first direction is reduced, and the optical display 303 is favorably mounted in the narrow accommodating cavity 3017.

Referring to fig. 6 and 7, the connecting side portion 15 includes a first side portion 151, a second side portion 153, a third side portion 155, and a fourth side portion 157. The first side 151 and the second side 153 are disposed opposite to each other in the second direction (Y direction as shown in fig. 7), and the third side 155 and the fourth side 157 are disposed opposite to each other in the third direction (Z direction as shown in fig. 7). Third side 155 may be considered the top of display body 32 and fourth side 157 may be considered the bottom of display body 32. The light source unit 3 is fixed to the third side portion 155 (shown in fig. 6). It should be understood that the present application is not limited to the structure of the housing 1 and the display main body 32, the housing 1 carries optical elements such as the light source unit 3, and the display main body 32 includes the light emitting portion 11, the back portion 13, and the connecting side portion 15.

In the third direction of the display main body 32, the position of the light source unit 3 is higher than the curved mirror 7 and the transflective optical element 5 along the direction from the third side portion 155 to the fourth side portion 157, so that when a user views the optical display 303, the light source unit 3 on the third side portion 155 is difficult to see through the transflective optical element 5, and as the light source unit 3 is hidden in the third side portion 155, stray light of the light source unit 3 does not directly transmit through the transflective optical element 5 to reach human eyes, thereby facilitating improvement of user experience and improving imaging quality of the optical display 303.

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 consists of three primary colors, and the color image is displayed by controlling the strength 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.

The transflector 5 is capable of transmitting a portion of incident light onto the transflector 5 and an optical element that reflects 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 has been greatly improved, and aspheric surfaces generally refer to quadric surfaces such as paraboloids, ellipsoids, involute surfaces, hyperboloids and the like with rotating shafts, high-order curved surfaces, and non-rotating aspheric surfaces such as off-axis aspheric surfaces. According to different use scenes, one aspheric surface can 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. An optical free-form surface has a complex structure, a high degree of freedom, and no clear expression definition, and an optical surface which does not have global rotational symmetry, does not have a uniform optical axis, and has a plurality of curvature radii on the entire surface is generally considered to be an optical free-form 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. 3 and fig. 4 again, in some embodiments of the present application, the package 34 includes a first package portion 341 and a second package portion 343 connected to each other. The pitching mechanism 35 includes a transmission assembly 353 and a driving member 356. The transmission assembly 353 is connected between the display main body 32 and the first support arm 313.

The transmission assembly 353 includes a first transmission structure and a second transmission structure. The first transmission structure is located at the side of the first side portion 151 of the display main body 32. The first transmission structure is rotatable about a second axis of rotation. The second transmission structure is connected with the display main body 32, and the rotation motion of the first transmission structure around the second rotation axis is converted into the rotation motion of the second transmission structure and the display main body 32 around the first rotation axis, so that the occupied space of the pitching mechanism 35 is reduced.

In this embodiment, the first transmission comprises a worm 3531 and the second transmission comprises a worm wheel 3533. The worm 3531 includes a fixedly connected worm head 3535 and a rod 3537. The worm head 3535 and the worm wheel 3533 are accommodated in the first sealing portion 341. The rod 3537 is accommodated in the second sealing portion 343. The worm head 3535 meshes with the worm wheel 3533. One end of the rod body 3537 is fixedly connected with the worm head 3535. The worm wheel 3533 is sleeved outside the rotating shaft 3515 in a rotation stopping manner. In the present embodiment, the worm 3531 is a single-headed worm having a strong self-locking function, and the position of the optical display main body 32 is not easily changed by an external force in a normal case.

The worm wheel 3533 and the worm 3531 are matched to have a self-locking function, the display main body 32 can hover at any angle in a pitching rotation range, the position stability of the display main body 32 is improved, the position stability of the display main body 32 relative to the support frame 31 can be kept even under the condition that the display main body 32 is vibrated continuously (for example, the vehicle 1000 runs under a bumpy road condition), abnormal sound is not generated due to shaking, and the use reliability of the optical display 303 is improved.

Driver 356 is coupled to an end of rod 3537 distal from worm head 3535 and is located outside of enclosure 34 for providing a driving force to display body 32. The driving member 356 drives the worm wheel 3533 to rotate through the worm 3531, and further drives the display main body 32 to rotate relative to the supporting frame 31. It is understood that in other embodiments, the drive member 356 may be housed within the enclosure 34 so as to be protected by the enclosure 34.

In this embodiment, the rod 3537 is movably inserted into the frame 3015, and the driving member 356 is fixed to the frame 3015 and located in the depending area 3019. Referring to fig. 8, the driver 356 is disposed in the resting region 3019 such that the driver 356 is spaced away from the headrest region 3018 and away from the ears of an occupant seated in the first seat 300. In addition, the driving element 356 is received in the receiving cavity 3017, and the covering 3016 of the first seat 300 can also isolate the noise generated by the driving element 356, thereby further reducing the influence of the driving element 356 on the passengers seated in the first seat 300. Since the mounting space of the depending section 3019 is sufficient, there is less restriction on the size and shape of the driving member 356, facilitating the mounting of the driving member 356.

In the vehicle-mounted environment, the optical display 303 disposed on the seat back of the first seat 300 is not large in the angle range requiring pitch adjustment in order to fit human eyes, and the rotation speed required by the vehicle-mounted optical display is low. In the present embodiment, the center of gravity of the display main body 32 is located on the first rotation axis to improve the balance stability of the display main body 32 when rotating around the first rotation axis. It will be appreciated that the centre of gravity may also be located spaced from the first axis of rotation. Because the worm gear can be decelerated, the requirement on the load of the driving piece 356 is not high, the driving piece 356 can adopt a stepping motor, and the stepping motor can drive the worm at a low speed. In addition, the initial vibration and noise of the stepping motor can be controlled to be very small, and the service life of the stepping motor and the service life of the transmission system are better.

In other embodiments of the present application, the driving component 356 may also be a dc speed reduction motor, an ac motor, a servo motor, or other types of motors, and a reduction box, an anti-rotation-blocking device, an angle detection sensor, an encoder, or the like may be added to the driving component 356 according to the functional requirements.

Referring to fig. 9 and 10, electrical component 37 includes a main controller 371, a first cable 372, a second cable 373, a third cable 374, a control board 375, and a fourth cable 376.

The master controller 371 is fixed on the framework 3015 (as shown in fig. 11 a) and located in the depending region 3019 for controlling the light source unit 3 and the driving member 356. The main controller 371 is located in the relying region 3019 and does not occupy the headrest region 3018, so that the installation flexibility of the optical display 303 and the space utilization rate of the accommodating cavity 3017 are improved.

The first cable 372 is electrically connected between the light source unit 3 and the master 371. The first cable 372 is used to transmit an image signal (e.g., a video signal) output from the master controller 371 to the light source unit 3. The second cable 373 is electrically connected between the light source unit 3 and the master 371. The second cable 373 supplies power to the light source unit 3, and ensures stable output of the light source unit 3. The first cable 372 and the second cable 373 may be combined into one.

The third cable 374 is electrically connected between the master controller 371 and the driving member 356, and is used for transmitting the driving signal output by the master controller 371 to the driving member 356, so that the master controller 371 controls the driving member 356.

The dashboard 375 is fixed to the frame 3015 (shown in fig. 10) and located on the side of the fourth side 157 of the display body 32. The dashboard 375 is positioned in the resting area 3019 so as not to occupy space in the headrest area 3018. The fourth cable 376 is electrically connected between the console board 375 and the main controller 371, so that the user can control the display main body 32 through the console board 375. The control panel 375 may be provided with keys 3751 thereon. Keys 3751 include physical keys, touch screen, and the like.

When the driving member 356 drives the display main body 32 to rotate, the position of each device of the display main body 32 relative to the electrical component 37 needs to be changed continuously to achieve the purpose of adapting to the viewer, that is, the display main body 32 and the electrical component 37 move relatively, cables between the display main body 32 and the electrical component 37 need to be redundant to reduce cable activities as much as possible, because the driving member 356, the control panel 375 and the main controller 371 are fixed on the framework 3015, when the display main body 32 rotates, the light source unit 3 rotates along with the display main body 32, and the driving member 356, the control panel 375 and the main controller 371 are relatively static. Therefore, the first cable 372 and the second cable 373 between the light source unit 3 and the master 371 need a larger redundancy, and the redundancy of the third cable 374 between the master 371 and the driving member 356 can be reduced, and the redundancy of the fourth cable 376 between the control board 375 and the master 371 can be reduced.

In some embodiments of the present application, master 371 is secured to backbone 3015 by fasteners (e.g., screws), as shown in fig. 11 a. Referring to fig. 11b, the main controller 371 includes a main control chip (not shown) and a protective casing 3713, wherein the protective casing 3713 is fixedly sleeved outside the main control chip. The protective shell 3713 is provided with a heat dissipation structure for dissipating heat generated by the main control chip. The heat dissipation structure includes heat dissipation teeth 3716 and heat dissipation through holes 3717 disposed on the protection shell 3713 to improve the heat dissipation efficiency of the main controller 371. The protective case 3713 may include an upper case 3718 and a lower case 3719 that are covered together, for example, the upper case 3718 and the lower case 3719 may be formed by different or the same processes, for example, the upper case 3718 may be a die-cast case, and the lower case may be a sheet metal case. It is to be understood that the present application is not limited to the structure and manufacturing process of the protective shell 3713.

The position where the main controller 371 is disposed is not limited in the present application, and in other embodiments of the present application, the main controller 371 may be disposed at other positions, for example, if the first seat 300 has a sufficient space in the headrest region 3018, the main controller 371 may be disposed on the back 13 of the housing 1, and so on. The main controller 371 and the light source unit 3 of the display main body 32 may be connected by wired communication or wireless communication.

In other embodiments of the present application, the fourth cable 376 may be omitted, and the console panel 375 may be connected to the main controller 371 in wireless communication, that is, the console panel 375 may be a remote controller, and the console panel 375 may be disposed around the display main body 32 or at an armrest of the second seat 500. In some embodiments of the present application, the console panel 375 is covered by a cover plate to protect the console panel 375, and the console panel 375 may also be directly connected to the housing 1.

Referring to fig. 13a, 13b, 13c and 13d, a first seat 300s provided in the second embodiment of the present application has substantially the same structure as the first seat provided in the first embodiment, except for the structure of the pitch mechanism 35.

The enclosure 34 includes a first enclosure portion 341 and a second enclosure portion 343 connected to each other, and the pitch mechanism 35 further includes a first connection assembly 351, a vibration isolator 357, and a second connection assembly 352. The first connecting element 351 is at least partially accommodated in the first packaging portion 341. The first connecting member 351 is connected between the first supporting arm 313 and the first side 151, and the second connecting member 352 is connected between the second supporting arm 315 and the second side 153, so that the supporting frame 31 is rotatably connected with the display main body 32. The transmission assembly 353 is in transmission connection with the first connection assembly 351, and the driving member 356 is in transmission connection with the transmission assembly 353. The transmission assembly 353 is used for transmitting the power output by the driving member 356 to the first connection assembly 351, so that the display main body 32 rotates relative to the support frame 31. The vibration isolator 357 is disposed between the driving member 356 and the frame 3015, and is used to block the vibration of the driving member 356 from being transmitted to the seat occupant of the first seat 300s through the frame 3015 to be sensed by the seat occupant, so as to achieve the mute adjustment and ensure the immersive viewing effect of the viewer on the optical display 303.

Referring to fig. 13d and 13e, the first connecting element 351 includes a boss 3511, a flange 3512, a flange bearing housing 3513, a bearing 3514 and a rotating shaft 3515. A boss 3511 is fixed to the first side 151, and a flange 3512 is fixed to the boss 3511. The flange bearing housing 3513 is fixed to an inner surface of the first support arm 313 facing the first side 151. The bearing 3514 is fixedly accommodated in the flange bearing housing 3513. The rotating shaft 3515 is rotatably connected with the bearing 3514. The rotating shaft 3515 is disposed through the worm wheel 3533 and the flange 3512. The rotating shaft 3515 is connected with the worm wheel 3533 in a rotation stopping manner, and the rotating shaft 3515 is connected with the flange 3512 in a rotation stopping manner, so that the rotating shaft 3515 is connected with the first side portion 151 in a rotation stopping manner.

In this embodiment, the flange 3512 is a spline flange, the rotating shaft 3515 is a spline shaft, the worm wheel 3533 is provided with a spline hole, the flange 3512 is in spline fit with the rotating shaft 3515, and the worm wheel 3533 is in spline fit with the rotating shaft 3515. With the spline fitting, the rotation of the rotation shaft 3515 with respect to the display main body 32 can be restricted, improving the stability of the display main body 32 when moving around the first rotation axis. In other embodiments of the present application, the rotating shaft 3515 may not be a spline shaft, and the flange 3512 may not be a spline flange.

Referring to fig. 13d again, the second connecting element 352 has a structure similar to that of the first connecting element 351, and the second connecting element 352 includes a flange 3522, a flange bearing housing 3523, a bearing 3524 and a rotating shaft 3525. A flange 3522 is secured to the second side 153. The flange bearing housing 3523 is fixed to the second support arm 315. The bearing 3524 is fixedly accommodated in the flange bearing sleeve 3523. The rotating shaft 3525 is rotatably connected with the bearing 3524, so that the second side portion 153 is rotatably connected with the second supporting arm 315. Since the first side portion 151 and the second side portion 153 are rotatably connected to the supporting bracket 31, the rotational stability of the display main body 32 is improved.

The first connecting element 351 and the second connecting element 352 are not limited in structure in the present application, for example, the second connecting element 352 may be omitted, and the first connecting element 351 may be configured to rotatably connect the supporting frame 31 and the display main body 32.

It is understood that in other embodiments of the present application, as shown in fig. 14, the worm 3531 may also be a multi-start worm to achieve a semi-self-locking, and an external force exceeding a certain magnitude may drive the display main body 32 to rotate reversely, so as to prevent the tilt mechanism 35 of the optical display 303 from being damaged by an external force, and at the same time, ensure that the angle of the optical display 303 is kept stable. The pitch mechanism 35 may also include an anti-stall device to prevent back driving from causing damage to the drive 356.

The driving member 356 can be flexibly disposed according to the inner space of the accommodating cavity 3017 and by setting different lengths and angles of inclination of the rod 3537, for example, the driving member 356 can be located on the side of the display main body 32 where the first side 151 is located, the side of the second side 153 is located, the side of the third side 155 is located, the side of the fourth side 157 is located, or the side of the back 13, that is, the driving member 356 can be located on the side, the top, and the bottom of the display main body 32.

In one possible implementation, as shown in fig. 15a, in the first seat 300a, the worm wheel 3533 is connected to the first side portion 151, the worm 3531 may omit a rod, the driving element 356 is located at a side of the first side portion 151 of the display main body 32, the driving element 356 is located adjacent to the worm wheel 3533, and the driving element 356 is located at or adjacent to the headrest portion 3018, so as to simplify the structure of the transmission assembly and fully utilize the space of the receiving cavity 3017 at the side of the first side portion 151 of the display main body 32.

In one possible implementation, as shown in fig. 15b, in the first seat 300b, the worm wheel 3533 is connected to the first side 151, the rod 3537 of the worm 3531 extends toward the top of the first seat 300b, the driving element 356 extends out of the side of the third side 155 of the display main body 32, and the driving element 356 is spaced from the worm head 3535 in the axial direction of the worm head 3535, so as to reduce the influence of noise or vibration generated by the driving element 356 on the ears of the occupant in the first seat 300b by using the space of the accommodating cavity 3017 on the side of the third side 155 of the display main body 32.

In one possible implementation manner, as shown in fig. 15c, in the first seat 300c, the worm wheel 3533 is connected to the first side portion 151, the rod 3537 of the worm 3531 extends toward the bottom of the first seat 300c, the driving element 356 is located at a side of the first side portion 151 of the display main body 32, and the driving element 356 and the worm head 3535 are spaced apart from each other in an axial direction of the worm head 3535, so as to reduce an influence of noise or vibration generated by the driving element 356 on ears of a rider on the first seat 300c by using a space of the accommodating cavity 3017 at the side of the first side portion 151 of the display main body 32.

In one possible implementation, as shown in fig. 16a, 16b and 16c, in the first seat 300d, the display main body 32 further has a mounting portion 19 for fixing the transflective optical element 5, and the mounting portion 19 is provided protruding from the connecting side portion 15. The installation portion 19 and the connection side portion 15 form an accommodation space, and the pitching mechanism 35 is accommodated in the accommodation space. In the first direction of the display main body 32, the pitch mechanism 35 is hidden behind the mounting portion 19 from the viewer, looking toward the back of the housing 1 from the transflective optical element 5. The tilt mechanism 35 multiplexes the space of the display main body 32 in the second direction, compressing the width of the non-display functional part of the optical display 303. In addition, the first connecting assembly may be omitted, the worm wheel 3533 may be directly fixed on the first side 151, the rod 3537 of the worm 3531 extends toward the bottom of the first seat 300d, and the driving member 356 is located outside the light emitting area of the display main body 32 to increase the screen occupation ratio of the display main body 32. In the axial direction of the worm head 3535, the driving member 356 is spaced from the worm head 3535 to reduce the influence of noise or vibration generated by the driving member 356 on the ear of the occupant in the first seat 300d while utilizing the accommodation cavity 3017 in the space below the display main body 32.

As shown in fig. 17a and 17b, a first seat 300e according to a third embodiment of the present application has substantially the same structure as the first seat 300e according to the first embodiment, and in the first seat 300e, an optical display 303 includes a support frame 31, a display main body 32, a package housing 34, and a tilt mechanism 35, except that a driving member in the tilt mechanism 35 may be omitted, a worm 3531 may be a multi-start worm, both ends of the worm 3531 are directly mounted in the package housing 34 through bearings, and the display main body 32 may be rotated by pushing the display main body 32 with a hand. The elimination of the driving components simplifies the construction and assembly of the optical display 303 and reduces the manufacturing cost of the optical display 303.

As shown in fig. 18a and 18b, a first seat 300f provided by a fourth embodiment of the present application has substantially the same structure as the first seat provided by the first embodiment, except that in the first seat 300f, a driving member 356 is located at a side of the fourth side portion 157 of the display main body 32, the pitching mechanism 35 further includes a first conical steering gear 3611 and a second conical steering gear 3613 engaged with each other, the first conical steering gear 3611 is connected with the driving member 356, the second conical steering gear 3613 is fixedly connected with the first transmission structure 3531, the driving member 356 is configured to drive the first conical steering gear 3611 to rotate, the rotation of the first conical steering gear 3611 drives the second conical steering gear 3613 to rotate, the first transmission structure 3531 is driven by the second conical steering gear 3613 to rotate, and further drives the second transmission structure 3533 to rotate, wherein the first transmission structure 3531 may be, but is not limited to, and the second transmission structure 3533 may be, but is not limited to be a worm gear. The conical steering gear is additionally arranged on the first transmission structure 3531, the driving piece 356 can be transversely arranged instead of being vertically arranged, and is arranged right below the optical display 303, so that the length of the driving piece 356 of the optical display 303 is not limited, the driving piece 356 can adopt a speed reduction motor, the pitching adjusting moment requirement of the vehicle-mounted optical display is met by reducing the speed and increasing the moment, and the cost of the driving piece 356 is reduced. Functional components such as an anti-rotation lock, an angle sensor, and an encoder may also be added to the upper length direction of the driving member 356 in the pitching mechanism 35 as needed.

Referring to fig. 19a and 19b, a first seat 300g according to a fifth embodiment of the present invention is substantially the same as the first seat 300g according to the first embodiment, except that the first transmission structure includes a first gear 3531, the first gear 3531 is connected to a driving member 356, the second transmission structure includes a sector gear 3533 fixedly connected to the first side portion 151 connected to the side portion, the sector gear 3533 is engaged with the gear 3531, and the driving member 356 is used for driving the gear 3531 to rotate so as to drive the sector gear 3533 to rotate, thereby driving the display main body 32 to rotate. The driver 356 may be located below the fourth side 157 of the connecting side. And by adopting sector gear transmission, compared with worm wheel and worm transmission, the transmission structure is more compact. It will be appreciated that the second transmission structure may also be connected to other locations of the connecting side portions, for example, the second side portion, the third side portion, the fourth side portion. The driver 356 may be located elsewhere on the first seat 300.

Referring to fig. 20a, 20b and 20c, a first seat 300h according to a sixth embodiment of the present invention is substantially the same as the first seat 300 of the first embodiment, in the first seat 300h, a supporting frame 31 is rotatably connected to a connecting side portion 15, except that a driving member 356 is disposed below a fourth side portion 157 of the connecting side portion 15, the first transmission structure includes a first gear 3531 fixedly connected to the driving member 356, the second transmission structure includes a curved tooth portion 1573 disposed on the fourth side portion 157, the curved tooth portion 1573 is engaged with the first gear 3531, and the driving member 356 is configured to drive the first gear 3531 to rotate so as to drive the display main body 32 to rotate. In this embodiment, the curved tooth portion 1573 is an arc-shaped rack structure disposed on the fourth side portion 157. The arc tooth portion 1573 is directly integrated with the housing 1, and the transmission structure does not occupy the width space of the optical display 303. The arc tooth 1573 may be disposed at other positions of the connecting side, such as the first side, the second side, and the third side. The driver 356 may be disposed at other positions of the first seat 300 h.

Referring to fig. 21a and 21b, a first seat 300i provided in a seventh embodiment of the present invention has substantially the same structure as the first seat provided in the first embodiment, in the first seat 300i, a supporting frame 31 is rotatably connected to a connecting side portion 15, and a difference is that a driving member 356 can be located below a fourth side portion 157 of the connecting side portion 15, the first transmission structure includes a first pulley 3531, the first pulley 3531 is connected to the driving member 356, the second transmission structure includes a second pulley 3533, the second pulley 3533 is fixedly connected to the connecting side portion 15, the tilting mechanism 35 further includes a transmission belt 3538, the transmission belt 3538 is sleeved on the first pulley 3531 and the second pulley 3533, the driving member 356 is used for driving the first pulley 3531 to rotate, and the transmission belt 3538 drives the second pulley 3533 to rotate, so as to rotate the display main body 32. The belt wheel and the transmission belt are adopted for transmission, so that the installation between the pitching mechanism and the display main body 32 is facilitated, and the assembly efficiency of the optical display 303 is improved.

Referring to fig. 22a and 22b, a first seat 300j provided in the eighth embodiment of the present application has substantially the same structure as the first seat provided in the first embodiment, except that in the first seat 300j, the transmission assembly is omitted from the pitching mechanism, the driving member 356 can be directly fixed on the supporting frame 31, and the driving member 356 is connected to the connecting side portion 15, that is, the driving member 356 is located between the supporting frame 31 and the display main body 32. The driver 356 may be integrated with the display body 32, simplifying the construction of the optical display. The drive 356 may be a low profile speed reducing direct drive motor.

Referring to fig. 23a, 23b and 23c, a first seat 300k according to a ninth embodiment of the present invention has substantially the same structure as the first seat 300k according to the first embodiment, in which the second transmission structure is connected to the connecting side portion 15 and the second transmission structure is rotatably connected to the supporting frame 31, different in that the first transmission structure includes a moving member 3531, the second transmission structure includes a connecting shaft 3533, the connecting shaft 3533 is slidably connected to the moving member 3531, and the connecting shaft 3533 is rotatably connected to the supporting frame 31. The moving member 3531 may be a hinge. The driving member 356 is used to drive the moving member 3531 to move linearly, so that the connecting shaft 3533 drives the display main body 32 to rotate. The moving element 3531 is provided with a sliding groove 3539, and the connecting shaft 3533 penetrates through the sliding groove 3539 and is connected with the sliding groove 3539 in a sliding manner. The pitch mechanism 35 further includes a lead screw 365, and the moving member 3531 is screwed with the lead screw 365. The driver 356 is used to drive the screw 365 to rotate. The drive 356 may be a lead screw motor. The driving member 356 drives the screw 365 to rotate, and the screw 365 drives the moving member 3531 to move linearly along the axial direction (fourth direction) of the screw 365. Because the connecting shaft 3533 is slidably connected with the moving member 3531, the connecting shaft 3533 is rotatably connected with the supporting frame 31, and the linear motion of the moving member 3531 drives the display main body 32 to rotate relative to the supporting frame 31.

By adopting the lead screw transmission, the occupied space of the pitching mechanism 35 can be reduced, and the angle control accuracy of the optical display 303 can be improved. In addition, the sliding groove 3539 guides the sliding of the second transmission structure relative to the first transmission structure, so that the rotating smoothness of the display main body 32 is improved.

In other embodiments of the present application, the structure of the moving element 3531 is not limited, and the connection mode between the moving element 3531 and the connecting shaft 3533 is not limited.

Referring to fig. 24a and 24b, a first seat 300m according to a tenth embodiment of the present disclosure has substantially the same structure as the first seat according to the ninth embodiment, in the first seat 300m, a second transmission structure is connected to the connecting side portion 15, the second transmission structure is rotatably connected to the supporting frame, the first transmission structure includes a moving member 3531, the second transmission structure includes a connecting shaft 3533, the connecting shaft 3533 is slidably connected to the moving member 3531, and the connecting shaft 3533 is rotatably connected to the supporting frame 31. The moving member 3531 may be a hinge. The moving element 3531 is provided with a sliding groove 3539, and the connecting shaft 3533 penetrates through the sliding groove 3539 and is connected with the sliding groove 3539 in a sliding manner. Except that the driver 356 is a push rod motor. The driving member 356 includes a driving body 3561 and an output shaft 3563, the driving body 3561 drives the output shaft 3563 to move linearly, and the moving member 3531 is disposed on the output shaft 3563. The driving body 3561 drives the output shaft 3563 to move linearly along the axial direction of the output shaft 3563, and drives the moving member 3531 to move linearly. Because the connecting shaft 3533 is slidably connected with the moving member 3531, the connecting shaft 3533 is rotatably connected with the supporting frame 31, and the linear motion of the moving member 3531 drives the display main body 32 to rotate relative to the supporting frame 31.

The push rod motor is adopted for transmission, so that the occupied space of the pitching mechanism 35 can be reduced, and the angle control precision of the optical display 303 can be improved.

In a possible implementation manner, referring to fig. 25a and 25b, a first seat 300n provided in an eleventh embodiment of the present application has substantially the same structure as the first seat provided in the ninth embodiment, in the first seat 300n, a second transmission structure is connected to the connecting side portion 15, the second transmission structure is rotatably connected to the supporting frame, the first transmission structure includes a moving member 3531, the second transmission structure includes a connecting shaft 3533, the connecting shaft 3533 is slidably connected to the moving member 3531, and the connecting shaft 3533 is rotatably connected to the supporting frame 31. The moving member 3531 may be a hinge. The moving element 3531 is provided with a sliding groove 3539, and the connecting shaft 3533 penetrates through the sliding groove 3539 and is connected with the sliding groove 3539 in a sliding manner. Except that the driver 356 is a pneumatic cylinder. The driving member 356 includes a driving body 3561 and an output shaft 3563, the driving body 3561 drives the output shaft 3563 to move linearly, and the moving member 3531 is disposed on the output shaft 3563. The driving body 3561 drives the output shaft 3563 to move linearly along the axial direction of the output shaft 3563, so as to drive the moving member 3531 to move linearly. Because the connecting shaft 3533 is slidably connected with the moving member 3531, the connecting shaft 3533 is rotatably connected with the supporting frame 31, and the linear motion of the moving member 3531 drives the display main body 32 to rotate relative to the supporting frame 31.

The pitching mechanism further comprises an air pump 367 and an air delivery pipe 369, and the air delivery pipe 369 is connected between the driving body 3561 and the air pump 367. The air cylinder is adopted for transmission, so that the occupied space of the pitching mechanism can be reduced, and the mounting flexibility of the optical display 303 can be improved.

Referring to fig. 26, a first seat 300q according to a twelfth embodiment of the present disclosure has substantially the same structure as the first seat according to the first embodiment, except that the pitching mechanism 35 further includes a noise reduction member 358, the noise reduction member 358 is wrapped around the outer surface of the driving member 356 to reduce the vibration and noise generated by the driving member 356, and the noise reduction member 358 may be made of a material with strong noise reduction and sound absorption capabilities, such as sound absorption cotton.

The first to the twelfth embodiments may be combined with each other.

Referring to fig. 27, fig. 27 is a functional schematic diagram of a vehicle 1000 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 as an example), a power supply 24, a computer system 25, and a display system 26, which may communicate with each other. The display system 26 may include the display device provided in the 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 sense the measured information and convert the sensed information into electrical signals according to a certain rule or output information in other desired forms. As shown in fig. 27, 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 elements such as a throttle controller and an engine controller for controlling the driving speed of the vehicle, which is 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 to enable network communication between the vehicle and devices other than 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) and memory 2502 (which may also be referred to as storage). In practical applications, the memory 2502 may be also inside the computer system 25, or may be external to the computer system 25, for example, as a cache in a vehicle, and the present application is not limited thereto.

The processor 2501 may include one or more general-purpose processors, such as a Graphics Processing Unit (GPU), among others. The processor 2501 may be configured to execute related 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 include a combination of the above kinds of memories. 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 may call 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, which is described in detail below in the present application.

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 the 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. The detailed structure of the display system 26 refers to the above-mentioned embodiment of the display device, and is not described herein again.

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 merely examples, and are not limited thereto. In other embodiments of the present application, the vehicle 1000 further includes a door 210 on which a dashboard 375 may be disposed, see fig. 12, for ease of operation.

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.

While the application is not limited to the application of the optical Display 303 to the vehicle 1000, the optical Display 303 may be applied to other devices, and in one possible application scenario, the optical Display 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. 28, 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 303 is integrated into a projector, which can project an image onto a wall or a projection screen, see fig. 29.

The application scenarios given above are only examples, and the optical display provided in the present application may also be applied to other possible scenarios, such as medical devices, 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 for the components, such as "first," "second," etc., are used merely to distinguish between the objects 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 think 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 display device comprises a display main body, a light-emitting part and a connecting side part, wherein the light-emitting part and the back part are arranged oppositely along a first direction of the display main body, and the connecting side part is connected between the light-emitting part and the back part; and

the pitching mechanism is connected with the connecting side part and used for driving the display main body to rotate around a first rotating axis arranged along a second direction, and the second direction of the display main body is different from the first direction of the display main body.

2. The optical display of claim 1,

the pitching mechanism comprises a first transmission structure and a second transmission structure which are connected, the second transmission structure is connected with the connecting side portion, and the first transmission structure is used for driving the second transmission structure to move.

3. The optical display of claim 2,

the pitching mechanism further comprises a driving piece, the driving piece is connected with the first transmission structure, and the driving piece is used for driving the first transmission structure to move.

4. The optical display of claim 2,

the second transmission structure is fixedly connected with the connecting side part and can rotate around a second rotation axis; the rotation of the first transmission structure drives the second transmission structure and the display main body to rotate.

5. The optical display according to claim 4,

the first transmission structure comprises a worm, the second transmission structure comprises a worm wheel, the worm wheel is fixed on the connecting side portion, and the worm wheel is meshed with the worm.

6. The optical display of claim 5,

the worm comprises a worm rod head and a rod body which are fixedly connected, the worm rod head is meshed with the worm wheel, and one end, far away from the worm rod head, of the rod body is used for being connected with the driving piece.

7. The optical display according to claim 4,

the first transmission structure is engaged with the second transmission structure,

the pitching mechanism further comprises a first conical steering gear and a second conical steering gear which are meshed with each other, the first conical steering gear is connected with the driving part, the second conical steering gear is fixedly connected with the first transmission structure,

the driving piece is used for driving the first conical steering gear to rotate, and the first conical steering gear rotates to drive the second conical steering gear to rotate.

8. The optical display of claim 3,

the first transmission structure comprises a first gear, the first gear is connected with the driving piece,

the second transmission structure comprises a sector gear fixedly connected with the connecting side part, the sector gear is meshed with the first gear,

the driving piece is used for driving the first gear to rotate so as to drive the sector gear to rotate.

9. The optical display of claim 3,

the first transmission structure comprises a first gear fixedly connected with the driving piece,

the second transmission structure comprises an arc tooth part arranged on the connecting side part, the arc tooth part is meshed with the first gear, and the driving part is used for driving the first gear to rotate so as to drive the display main body to rotate.

10. The optical display of claim 3,

the first transmission structure comprises a first belt wheel which is connected with the driving part,

the second transmission structure comprises a second belt wheel which is fixedly connected with the connecting side part,

the pitching mechanism also comprises a transmission belt which is sleeved on the first belt wheel and the second belt wheel,

the driving piece is used for driving the first belt wheel to rotate, and the driving belt drives the second belt wheel to rotate.

11. The optical display of claim 3,

the pitching mechanism further comprises a noise reduction piece, and the noise reduction piece is wrapped on the outer surface of the driving piece.

12. The optical display of claim 3,

the connecting side part comprises a first side part, a second side part, a third side part and a fourth side part which are arranged in a connecting mode, the first side part and the second side part are arranged oppositely along the second direction of the display main body, the third side part and the fourth side part are arranged oppositely along the third direction of the display main body, the driving part is located on one side of the first side part, the second side part, the third side part and the fourth side part of the display main body, the third direction is different from the first direction, and the third direction is different from the second direction.

13. The optical display of claim 1,

the pitching mechanism comprises a driving piece, the driving piece comprises a driving body and an output shaft which is rotatably connected with the driving body, the output shaft is fixedly connected with the connecting side part, and the driving body is used for driving the output shaft to rotate.

14. The optical display according to any one of claims 1 to 13,

the optical display further comprises a packaging shell, and the pitching mechanism is contained in the packaging shell.

15. The optical display according to any one of claims 1 to 13,

the optical display further comprises an installation part which is convexly arranged on the connecting side part, the installation part and the connecting side part form an accommodating space in a surrounding mode, and at least part of the pitching mechanism is accommodated in the accommodating space.

16. The optical display according to any one of claims 1 to 13,

the optical display further comprises a support frame, and the pitching mechanism is rotatably connected between the display main body and the support frame.

17. The optical display according to any of claims 1-13, wherein the center of gravity of the display body is located on the first rotation axis.

18. The optical display according to any one of claims 1-13,

the display main body comprises a shell, a light source unit and a curved mirror;

the back part, the light-emitting part and the connecting side part are arranged on the shell;

the light source unit is fixed on the connecting side part and used for outputting imaging light;

the curved mirror is fixed on the connecting side part or the back part and is used for reflecting the imaging light to the outside of the shell through the light emergent part.

19. The optical display of claim 18,

the display main body further comprises a transflective optical element, the transflective optical element is fixedly arranged on the light emergent portion in a covering mode, the imaging light emitted by the light source unit is reflected to the curved mirror through the transflective optical element, and the curved mirror transmits the incident imaging light to the outside of the shell through the transflective optical element.

20. A seat comprising a seat body and an optical display according to any of claims 1 to 19, the seat body comprising a receiving cavity, the display body being at least partially received in the receiving cavity, and the tilt mechanism being received in the receiving cavity.

21. The seat according to claim 20,

the seat main body further comprises a headrest area and a leaning area, and the display main body is located in the headrest area.

22. A vehicle comprising an optical display according to any one of claims 1 to 19 mounted on the vehicle.