CN111192537A

CN111192537A - Vehicle with projection device, projection device and projection method thereof

Info

Publication number: CN111192537A
Application number: CN202010103746.0A
Authority: CN
Inventors: 吴迪; 王瑞钦; 冯博文; 刘源; 沈洁
Original assignee: Hangzhou Maizr Technology Co Ltd
Current assignee: Hangzhou Maizr Technology Co Ltd
Priority date: 2020-02-20
Filing date: 2020-02-20
Publication date: 2020-05-22

Abstract

The invention provides a vehicle with a projection device and the projection device, wherein the vehicle with the projection device comprises a vehicle body, a rear view glass and the projection device, the rear view glass is arranged at the rear side of the vehicle body, the projection device is arranged in the vehicle body, and the lens device projects at least one content towards the direction of the rear view glass so that the outside of the vehicle can obtain the content through the rear view glass.

Description

Vehicle with projection device, projection device and projection method thereof

Technical Field

The invention relates to the field of automobiles, in particular to a vehicle with a projection device, the projection device and a projection method thereof.

Background

The method for displaying the advertisement information on the vehicle overcomes the defects of fixed places and limited propagation range of advertisement putting ends. For example, the arrangement places of the advertising ends such as a billboard and an outdoor television are fixed, and only the advertising radiation is generated in the fixed area, so that the propagation range is limited. The mobile vehicle is used for advertising, the advertising propagation range is expanded, and the population radiated by the advertisement is increased.

However, the method for placing advertisements on vehicles is limited, and the currently used methods mainly include vehicle body advertisement printing, vehicle body external LED-mounted playing, and the like, which all have certain disadvantages.

The advertisement content printed on the car body is fixed, and only the fixed content can be publicized in a certain time period. In addition, the advertisement putting party generally purchases the vehicle body advertisement in a certain time period to carry out propaganda, the advertisement putting party changes when the advertisement putting time limit is reached, the put content needs to be changed, the vehicle body needs to be printed again, the replacement cost of the advertisement is high, the operation is complex, repeated printing is carried out on the vehicle body, and the vehicle body is easy to damage.

And the advertisement is played outside the vehicle body through the LED equipment, and the LED equipment can influence the advertisement putting effect. The types of LEDs which can be installed on the vehicle are limited, the installed LED equipment needs to be adapted to the conditions of the vehicle, the LED equipment with a large display surface cannot be installed on the body of a small car, and the small LED equipment is generally installed at the position of the roof and the like, so that the content which can be played is limited, and the transmission effect is not ideal. In order to install the LED equipment with a large display surface, a vehicle with a large flat surface is needed, the requirement on the vehicle is high, and the installation of the LED equipment is limited.

Therefore, the traditional vehicle advertisement putting mode has certain defects, has certain requirements on vehicles and putting equipment, and causes the limited vehicle advertisement putting mode and the limited spreading effect.

Disclosure of Invention

An advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the vehicle is provided with a projection device, and information projected by the projection device can be obtained externally, so as to achieve the effect of displaying information outwards.

Another advantage of the present invention is to provide a vehicle with a projection apparatus, a projection apparatus and a projection method thereof, wherein the projection apparatus includes a carrier sheet mounted on a rear glass side of the vehicle for presenting projected contents to be externally captured.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the content projected by the projection device is externally obtained through the rear glass, so as to display rich information outwards by utilizing the larger visual range provided by the rear glass.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, in which information displayed outside the vehicle can be changed by changing the projection content of the projection device, and the content replacement is simple and convenient and is low in cost.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the projection device includes a projection lens and a carrying mechanism, the carrying mechanism is disposed on a rear glass of the vehicle, and the projection lens projects content onto the carrying mechanism, so that the projected content is captured from the outside through the rear glass.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the rear glass provides a larger visual range, so that the carrying mechanism can provide a larger display area correspondingly, and display rich contents.

Another advantage of the present invention is to provide a vehicle with a projection apparatus, a projection apparatus and a projection method thereof, wherein the carrying mechanism can be attached to the rear glass of the vehicle so that contents can be externally accessed through the rear glass.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the carrying mechanism is rolled inside the rear glass, and the carrying mechanism can be rolled and formed inside the rear glass to display the content projected by the projection lens through the rear glass.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the carrier curtain can be rolled up and stored, so that a person sitting in a front seat can observe the situation behind the vehicle through the rear glass, thereby ensuring driving safety.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the projection device can be a rear projection or a front projection, and the projection mode is not limited.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the carrier curtain has a transparent state and an opaque state, and the carrier curtain can be controlled to switch between the transparent state and the opaque state to be suitable for viewing conditions and projections behind the vehicle, respectively.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, wherein the carrier curtain can be a transparent curtain, so that a person inside the vehicle can observe the rear of the vehicle through the carrier curtain and the rear glass.

Another advantage of the present invention is to provide a vehicle with a projection device, a projection device and a projection method thereof, which can be used to add the projection device to an existing vehicle so that the existing vehicle can realize a projection function.

In accordance with one aspect of the present invention, the foregoing and other objects and advantages are achieved in the present invention which comprises:

a vehicle body;

a rear glass mounted on a rear side of the vehicle body; and

the projection device is arranged inside the vehicle body and projects at least one content towards the direction of the rear view glass, so that the outside of the vehicle can obtain the content through the rear view glass.

According to one embodiment of the invention, the projection device comprises a projection lens and a bearing curtain, the bearing curtain is attached to the rear view glass, the projection lens is installed on the vehicle body, and the projection lens projects the content to the bearing curtain.

According to an embodiment of the present invention, a surface of the carrier sheet is attached to the rear view glass, and the content projected by the projection lens to the carrier sheet is displayed on the surface of the carrier sheet attached to the rear view glass, so that the outside can obtain the content through the rear view glass.

According to an embodiment of the present invention, the projection apparatus includes a projection lens and a carrying mechanism, the projection lens and the carrying mechanism are mounted on the vehicle body, wherein the projection lens projects the content to the carrying assembly.

According to an embodiment of the present invention, the carrying mechanism includes at least one receiving member and a carrying curtain, one end of the carrying curtain is connected to the receiving member, the receiving member rolls up the carrying curtain, and the other end of the carrying curtain can be stretched to unfold the carrying curtain.

According to one embodiment of the invention, the receiving member is mounted on the vehicle body at the periphery of the rear glass, and the carrier curtain is unfolded to be formed at the inner side of the rear glass, wherein the carrier curtain is provided with a projection surface facing the rear glass.

According to one embodiment of the invention, the projection lens is installed at the back side of the carrier curtain to project the content to the projection surface.

According to an embodiment of the invention, the projection lens is installed at a front side of the carrier curtain to project the content to the carrier curtain, so as to project the content to the projection surface.

According to one embodiment of the invention, the receiving element retracts the carrier sheet to expose the rear view glass, and the carrier sheet is stretched to form the projection surface facing the rear view glass.

According to one embodiment of the invention, the bearing curtain is electrically controlled dimming glass, the bearing curtain is in a light-transmitting opaque state when being electrified, and the bearing curtain is in a transparent state when not being electrified.

According to one embodiment of the invention, the carrier curtain is a transparent curtain.

According to one embodiment of the invention, the carrier curtain is a non-transparent curtain.

According to an embodiment of the invention, the carrier curtain has a transparent state and a non-transparent state, when the carrier curtain is in the transparent state, the condition outside the vehicle is obtained from the inside of the vehicle, and when the carrier curtain is in the non-transparent state, the projection lens projects the content to the carrier curtain.

According to an embodiment of the present invention, the carrier curtain is a dimmable nano projection curtain, the carrier curtain is in an opaque state when powered on to present the content projected by the projection lens, and the carrier curtain is in a transparent state when powered off to allow light to pass through.

According to another aspect of the present invention, there is further provided a projection device for mounting on a vehicle, wherein the projection device comprises:

the bearing curtain is arranged on the inner side of a rear view glass of the vehicle; and

the projection lens is arranged in the vehicle, and projects at least one content to the bearing curtain, and the content is presented on the surface of the bearing curtain facing to the rear glass of the vehicle, so that the outside of the vehicle can obtain the content through the rear glass of the vehicle.

According to one embodiment of the invention, the carrier curtain is attached to the rear glass of the vehicle.

According to an embodiment of the invention, the projection apparatus further includes a receiving member, the receiving member is configured to be mounted on the vehicle, wherein one end of the carrier curtain is connected to the receiving member, the receiving member rolls up the carrier curtain, and the other end of the carrier curtain can be stretched to unfold the carrier curtain.

According to another aspect of the present invention, the present invention further provides a projection method for a vehicle with a projection device, comprising the steps of:

(A) projecting at least one content towards a rear view glass of the vehicle by means of a projection device; and

(B) imaging inside the rear glass of the vehicle to allow the outside world to access the content through the rear glass of the vehicle.

According to one embodiment of the present invention, the step (a) includes the steps of:

a bearing curtain is pasted on the inner side of the rear-view glass of the vehicle; and

and projecting the content to the surface of the rear-view glass attached to the vehicle by the carrying curtain.

installing a bearing device on the inner side of the rear view glass of the vehicle;

stretching a bearing curtain of the bearing device to form a rear view glass with a projection surface facing the vehicle; and

projecting the content onto the projection surface.

Further objects and advantages of the invention will be fully apparent from the ensuing description and drawings.

These and other objects, features and advantages of the present invention will become more fully apparent from the following detailed description, the accompanying drawings and the claims.

Drawings

FIG. 1 is a schematic view of a vehicle with a projection device according to a preferred embodiment of the present invention.

Fig. 2 is a perspective view of a vehicle with a projection device according to a preferred embodiment of the present invention.

FIG. 3 is a partial schematic view of a projection of a vehicle with a projection device according to a preferred embodiment of the invention.

FIG. 4 is a schematic view of a vehicle with a projection device according to another preferred embodiment of the present invention.

Fig. 5 is a schematic projection diagram of a vehicle with a projection device according to another preferred embodiment of the invention.

FIG. 6 is another partial schematic view of a projection of a vehicle with a projection device according to another preferred embodiment of the invention.

FIG. 7 is a partial schematic view of a projection of a vehicle with a projection device according to another preferred embodiment of the invention.

Fig. 8 is a schematic diagram of switching between the rolled and unrolled states of the projection apparatus of a vehicle with the projection apparatus according to another preferred embodiment of the invention.

FIG. 9 is a perspective view of a vehicle with a projection device according to another preferred embodiment of the present invention.

FIG. 10 is an un-projected schematic view of a vehicle with a projection device according to another preferred embodiment of the invention.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents, and other technical solutions without departing from the spirit and scope of the invention.

It will be understood by those skilled in the art that in the present disclosure, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced devices or components must be in a particular orientation, constructed and operated in a particular orientation, and thus the above terms are not to be construed as limiting the present invention.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

Referring to fig. 1 to 3, the present invention provides a vehicle with a projection device, including a vehicle 10 and a projection device 20, wherein the projection device 20 is installed inside the vehicle 10 and projects onto a rear glass of the vehicle 10, so that a person outside the vehicle can obtain the projected content.

The vehicle 10 includes a vehicle body 11 and a rear glass 12, and the rear glass 12 is mounted on the rear side of the vehicle body 11 toward the rear of the vehicle 10. The rear view glass 12 is transparent to light.

The projection device 20 is installed on the vehicle body 11, and the projection device 20 projects at least one content to the rear glass 12 side, so that the content can be obtained through the rear glass 12 by the outside.

The projection device 20 includes a projection lens 21 and a carrier curtain 22, the projection lens 21 is mounted on the vehicle body 10, and the carrier curtain 22 is mounted on the rear glass 12. Further, the carrier curtain 22 is attached to the rear glass 12. One surface of the carrier curtain 22 is attached to the rear view glass 12, the projection lens 21 is installed on the other side of the carrier curtain 22 to perform rear projection on the carrier curtain 22, and the projection lens 21 projects the content onto the carrier curtain 22 to be displayed in the forward direction on the surface of the carrier curtain 22 attached to the rear view glass 12, so that the content can be acquired through the rear view glass 12 by the outside.

In an example of the present invention, the carrier curtain 22 is implemented as an electrically controlled light adjusting glass, when the carrier curtain is not powered on, the optical characteristics of the liquid crystal are utilized to realize the photoelectric effect of the film, and the liquid crystal molecules in the carrier curtain 22 are in an irregular distribution state, so that the carrier curtain has a light-transmitting and opaque appearance. After the carrier curtain 22 is powered on, the liquid crystal molecules in the carrier curtain 22 are arranged regularly, and light can penetrate through the carrier curtain 22 freely, so that the carrier curtain 22 is transparent.

When the projection lens 21 outputs content, the carrier curtain 22 is not powered on, so that the carrier curtain 22 can present the content projected by the projection lens 21. When the carrier curtain 22 is in the power-on state, the carrier curtain 22 is in the transparent state, so that a person inside the vehicle can see the situation outside the vehicle 10 through the carrier curtain 22 and the rear view glass 12.

The projection device 20 is connected to a power supply of the vehicle 10 to obtain power through the power supply of the vehicle 10, and the power supply of the vehicle 10 supplies the projection device 20 with power to operate the projection device 20. Specifically, the power supply of the vehicle 10 outputs electric energy to the projection lens 21 to operate the projection lens 21, and does not transmit electric energy to the carrier curtain 22 to make the carrier curtain 22 not operate, and the carrier curtain 22 is in a light-transmitting opaque state to image the content projected by the projection lens 21.

The power supply of the vehicle 10 supplies electric energy to the carrier curtain 22 to operate the carrier curtain 22, and the carrier curtain 22 is in a transparent state, so that a person inside the vehicle can see the situation outside the vehicle 10 through the carrier curtain 22 and the rearview glass 12.

The power supply of the vehicle 10 controls whether to supply electric energy to the projection lens 21 and the carrier curtain 22 according to the driving condition of the vehicle 10. For example, when the vehicle 10 is in the reverse state, the power supply of the vehicle 10 supplies power to the carrier curtain 22, so that the carrier curtain 22 is in the transparent state. In other situations where it is desirable to observe the rear condition of the vehicle 10, the power source of the vehicle 10 can deliver power to the carrier curtain 22 to control the carrier curtain 22 to be in the transparent state. During the driving process of the vehicle 10, the power supply of the vehicle 10 outputs electric energy to the projection lens 21 to enable the projection lens 21 to work, and does not transmit electric energy to the carrier curtain 22 to enable the carrier curtain 22 not to work, and the carrier curtain 22 presents the content projected by the projection lens 21.

In one example of the present invention, the carrier curtain 22 is implemented as a dimmable nano projection curtain, and the carrier curtain 22 is in an opaque state in a power-on state to present the content projected by the projection lens 21. The carrier sheet 22 is in a transparent state when not powered on, and does not affect the situation that people in the vehicle observe the rear of the vehicle 10 outwards.

In other examples of the present invention, the carrier sheet 22 is implemented as a transparent screen, a non-transparent screen, or the like, and the projection lens 21 may be capable of projecting the backside of the carrier sheet 22 toward the carrier sheet 22. The content projected from the back side of the carrier sheet 22 can be retrieved from the front side of the carrier sheet 22. Wherein the back side of the carrier curtain 22 faces the interior of the vehicle body 11, and the front side surface of the carrier curtain 22 is attached to the rear view glass 12. The projection lens 21 projects from the back side of the carrier sheet 22 to the carrier sheet 22, and the content is formed on the front side of the carrier sheet 22 to show the content in the forward direction. The content may be accessible to the exterior of the vehicle 10 through the rear view glass 12.

The projection lens 21 is mounted on the vehicle body 11 at the back side of the carrier curtain 22, so that the projection lens 21 projects the content onto the carrier curtain 22. It is understood that the installation position of the projection lens 21 is not limited, and the content may be projected onto the carrier curtain 22.

The projection lens 21 projects the content to the curtain carrier 22, and the content can be obtained from the outside through the curtain carrier 22 and the rear view glass 12, that is, the information inside the vehicle body 10 can be obtained from the outside. The rearview glass 12 provides a larger visual range, so that the bearing curtain 22 can be matched with the rearview glass 12 to generate a larger projection display area and display abundant contents outwards, and the transmission effect is good and the transmission efficiency is high.

The content projected by the projection lens 21 can be replaced, and the content can be adapted to the time requirement of the content transmission and can be played according to the playing time limit of the content.

In an example of the present invention, the curtain carrier 22 is implemented as a transparent curtain, when the projection lens 21 does not project on the curtain carrier 22, the curtain carrier 22 is transparent, and a vehicle occupant can obtain the external environment through the curtain carrier 22 and the rear view glass 12. The projection lens 21 can be controlled to project or not, and when the projection lens 12 is controlled not to project, so that the carrier curtain 22 is in a transparent state, the inside passenger can observe the situation behind the vehicle. The projection lens 21 is controlled to project onto the carrier curtain 22, and the carrier curtain 22 displays the content, so that the content can be obtained by the outside through the rear view glass 12.

In another example of the present invention, the carrier curtain 22 is implemented as an opaque rear projection curtain, and the carrier curtain 22 can also be controlled to transition between a transparent state and an opaque state. When the carrier curtain 22 is controlled to be in the transparent state, the projection lens 21 does not project on the carrier curtain 22, so that a person in the vehicle can observe the situation behind the vehicle through the carrier curtain 22 and the rearview glass 12. When the curtain carrier 22 is controlled to be in the opaque state, the projection device 21 can project the curtain carrier 22 to form the content on the surface outside the curtain carrier 22, and the content can be externally obtained through the rear view glass 12.

The control of the carrier sheet 22 and the projection lens 21 may be performed manually or automatically. For example, in an example of the present invention, the projection device 20 further includes a detector, and the detector detects a situation behind the vehicle 10 to feed back to an occupant in the vehicle, so as to monitor an environment behind the vehicle. The projection device 20 automatically controls the carrier curtain 22 to switch states according to the environmental conditions detected by the detector, and controls whether the projection lens 21 projects, so that personnel in the vehicle can observe the conditions behind the vehicle at the right time.

The projection device 20 can be installed on an existing vehicle, the carrier curtain 22 is customized according to the rear-view glass of the vehicle installed as required, or the carrier curtain 22 with a standard size is selected, the carrier curtain 22 is attached to the rear-view glass of the vehicle, and the projection lens 21 is installed in the vehicle, so that the projection lens 21 can project onto the carrier curtain 22. The content projected by the projection lens 21 is captured by the outside through the carrier curtain 22 and the rear glass 12.

Referring to fig. 4 to 10, another preferred embodiment of the present invention is shown, in which the vehicle 10A includes a vehicle body 11A and a rear glass 12A, and the rear glass 12A is mounted on the rear side of the vehicle body 11A toward the rear of the vehicle 10A. The rear glass 12A is transparent to light.

The projection device 20A is installed on the vehicle body 11A, and the projection device 20A projects at least one content toward the rear glass 12A, so that the content can be obtained through the rear glass 12A by the outside.

The projection device 20A includes a projection lens 21A and a carrying mechanism 22A, and the carrying mechanism 22A is retractably mounted on the vehicle body 11A. The bearing mechanism 22A is located on the inner side of the rear glass 12A, wherein the inner side of the rear glass 12A faces the inside of the vehicle body 11A, and the outer side of the rear glass 12A faces the outside of the vehicle body 11A. The projection lens 21A is disposed on one side of the carrying mechanism 22A, and projects the content onto the carrying mechanism 22A.

The carrying mechanism 22A includes at least one receiving component 221A and a carrying curtain 222A, the receiving component 221A is fixedly installed on the vehicle body 11A, and one end of the carrying curtain 222A is connected to the receiving component 221A, so that the receiving component 221A can roll the carrying curtain 222A. The other end of the carrier sheet 222A can be stretched to unfold the carrier sheet 222A. The carrier sheet 222A is rolled up in the receiving member 221A, so that the receiving member 221A receives the carrier sheet 222A. The receiving member 221A winds the carrier curtain 222A to receive the carrier curtain 222A. The other end of the curtain carrier 222A can be pulled out to unfold the curtain carrier 222A, and the curtain carrier 222A is unfolded inside the rear view glass 12A.

Specifically, a rolling end of the carrier sheet 222A is fixed to the receiving member 221A, a stretching end of the carrier sheet 222A opposite to the rolling end can be stretched to unfold the carrier sheet 222A, the rolling end of the carrier sheet 222A is rolled to wind the stretching end of the carrier sheet 222A to the receiving member 221A, and the carrier sheet 222A is rolled to the receiving member 221A.

The stretched end of the carrier curtain 222A is stretched to unfold the carrier curtain 222A, and after the stretched end of the carrier curtain 222A is stretched, the carrier curtain 222A is unfolded inside the rear view glass 12. The carrier curtain 222A has a projection surface 2220A, and the projection surface 2220A faces the rear glass 12. The content projected by the projection lens 21A to the carrier curtain 222A is presented on the projection surface 2220A, so as to show the content to the outside in the forward direction. The content presented by the projection plane 2220A and the projection plane 2220A can be observed from the outside through the rear view glass 12.

In an example of the present invention, further, at least one fixing member is installed at the stretching end of the carrier curtain 222A to fix the stretching end to the vehicle body 11A, so that the carrier curtain 222A is stably held at the inner side of the rear view glass 12 to avoid being influenced by the unstable driving of the vehicle 10.

The projection lens 21A projects the content onto the curtain 222A to present the content on the projection surface 2220A. The content presented by the projection plane 2220A can be obtained by the outside world through the rear view glass 12.

The support mechanism 22A is switchable between an extended state and a stowed state. When the carrying mechanism 22A is in the unfolded state, the projection lens 21A can project the content to the carrying curtain 222A. When the carrying mechanism 22A is in the accommodating state, the carrying curtain 222A is retracted into the accommodating part 221A, and the projection lens 21A does not project the carrying curtain 222A.

When the carrier curtain 222A is in the storage state, the inner side of the rear view glass 12A is not shielded, and an occupant in the vehicle can observe the environment behind the vehicle through the rear view glass 12.

When the carrier curtain 222A is in the unfolded state, the inner side of the rear view glass 12A is shielded, and a person in the vehicle can observe the environment behind the vehicle through other means. For example, a camera device is installed behind the vehicle to acquire an environment image behind the vehicle and transmit the environment image to the vehicle interior personnel, so that the vehicle interior personnel can observe the situation behind the vehicle.

The installation position of the receiving member 221A is located on the vehicle body 11 around the rear glass 12, and the specific position is not limited. The receptacle 221A can be installed above the rear glass 12, and the curtain carrier 222A is pulled downward from above the rear glass 12 so that the projection plane 2220A of the curtain carrier 222A faces the rear glass 12. The receiving member 221A may be installed below the rear view glass 12, and the curtain carrier 222A is pulled upward from below the rear view glass 12 so that the projection surface 2220A of the curtain carrier 222A faces the rear view glass 12. The receiving members 221A can be installed on the left and right sides of the rear glass 12, so that the curtain carrier 222A is pulled up to both sides, so that the projection surface 2220A of the curtain carrier 222A faces the rear glass 12. The receiving member 221A may be attached to the rear glass 12.

As shown in fig. 6, the projection lens 21A may be installed inside the carrier curtain 222A, wherein the inner side of the carrier curtain 222A faces the inside of the vehicle body 11. The projection lens 21A projects the content from the inner side of the carrier sheet 222A toward the carrier sheet 222A. That is, the projection lens 21A performs rear projection on the curtain carrier 222A, so that the content projected by the projection lens 21A is presented on the projection surface 2220A of the curtain carrier 222. For example, the projection lens 21A may be mounted on a rear seat of the vehicle body 11 to face the carrier sheet 222A.

As shown in fig. 7, the projection lens 21A can also be installed at the front side of the carrier curtain 222A to project the carrier curtain 222A forward, so as to project the carrier curtain 222A forward.

The size of the carrier curtain 222A can be adapted to the size of the rear view glass 12A, so that the projection surface 2220A of the carrier curtain 222A has a large display area, rich information can be displayed, and the propagation efficiency is improved.

It is worth mentioning that the size and shape of the carrier curtain 222A can be adapted according to the size and shape of the rear view glass 12A of the vehicle 10A, and can also be implemented as a standard size. The rear view glass 12A provides a larger visible range for the projection apparatus 20A, so that the projection surface 2220A of the curtain carrier 222A can display rich contents, and the transmission efficiency and the transmission effect are improved.

The content projected by the projection lens 21A can be replaced to meet the requirement of displaying different information. The content projected by the projection lens 21A can be replaced, the replacement is simple, the cost is low, the requirement of content diversification is met, the customization can be realized according to the requirement of a content delivery party, and the content can be replaced according to the change of the content delivery party.

In one example of the present invention, the carrier curtain 222A is implemented as a dimmable nano projection curtain, as shown in fig. 9, the carrier curtain 222A is in an opaque state in a power-on state to present the content projected by the projection lens 21A. As shown in fig. 10, the carrier curtain 222A is in a transparent state in a non-powered state, and does not affect the situation that the vehicle occupant observes the rear of the vehicle 10A outward.

In another example of the present invention, the carrier curtain 222A is implemented as a transparent curtain, and the projection lens 21A may be installed inside the carrier curtain 222A, i.e. at the back side of the carrier curtain 222A, to perform rear projection on the carrier curtain 222A. The projection lens 21A projects the content from the back side of the carrier sheet 222A to project the content to the carrier sheet 222A, the content is presented on the projection surface 2220A, and the outside can obtain the content through the rear view glass 12. The carrier curtain 222A is a transparent curtain, and the outside can also penetrate through the carrier curtain 222A after penetrating through the rearview glass 12A and be acquired by the personnel in the vehicle, so that the personnel in the vehicle can observe the outside situation through the carrier curtain 222A and the rearview glass 12A. Further, the carrier curtain 222A can be rolled into the receiving member 221A, so that a person in the vehicle can directly observe the situation behind the vehicle 10 through the rear view glass 12A.

The carrier sheet 222A is retracted into the receiving member 221A when the projection lens 21A is not projecting, and the carrier sheet 222A may also be retracted into the receiving member 221A.

In another example of the present invention, the carrier curtain 222A is implemented as an opaque rear projection curtain, the projection lens 21A is installed at the back side of the carrier curtain 222A to project the content from the back side to the carrier curtain 222A, so as to present the content on the projection surface 2220A of the carrier curtain 222A, and the content presented by the projection surface 2220A can be acquired by the outside through the rear view glass 12A. The carrier curtain 222A can be controlled to be rolled up in the receiving member 221A. In another example of the present invention, the carrier sheet 222A can be controlled to transition between a transparent state and an opaque state. When the carrier curtain 222A is controlled to be in the transparent state, the vehicle occupant can see through the carrier curtain 222A and the rear view glass 12A to observe the payment behind the vehicle. When the curtain carrier 222A is in the opaque state, the projection lens 21A projects the content to the curtain carrier 222A, so that the outside can obtain the content presented by the projection surface 2220A of the curtain carrier 222A through the rear view glass 12A.

The vehicle occupant can control the operation of the projection device 20A. Further, the carrying mechanism 22A is controlled in the deployed state or the housed state. The vehicle occupant can control the carrying mechanism 22A in the deployed state to observe the situation behind the vehicle.

In another example of the present invention, the projection device 20 further includes a detector mounted on the rear side of the vehicle to detect the environment on the rear side of the vehicle. The detector detects the situation behind the vehicle 10A to feed back to the personnel in the vehicle, so as to realize monitoring of the environment behind the vehicle. The projection device 20A automatically controls the carrying mechanism 22A to switch states according to the environmental conditions detected by the detector, and controls whether the projection lens 21A performs projection or not, so that the personnel in the vehicle can observe the conditions behind the vehicle at the right time.

The projection device 20A can be installed on an existing vehicle, and the carrying device 22A of the projection device 20A is installed inside a rear view glass of the existing vehicle, wherein the receiving part 221A is fixedly installed at a position around the rear view glass, and the position thereof can be selected according to the vehicle body condition of the vehicle, so as to stably install the receiving part 221A. The carrier curtain 222A is rolled up in the receiving member 221A. The projection lens 21A is mounted on one side of the carrier sheet 222A. The mounting position of the projection lens 21A is determined according to the projection mode and the vehicle body condition of the vehicle. If the projection mode is a rear projection type, the projection lens 21A is installed at the back side of the carrier curtain 222A to perform rear projection on the carrier curtain 222A. If the projection mode is a forward projection type, the projection lens 21A is installed on the front side of the carrier curtain 222A to project the carrier curtain 222A forward.

The invention further provides a projection method for a vehicle with a projection device, comprising the following steps:

projecting the content onto the projection surface.

It will be appreciated by persons skilled in the art that the embodiments of the invention described above and shown in the drawings are given by way of example only and are not limiting of the invention. The objects of the invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the examples, and any variations or modifications of the embodiments of the present invention may be made without departing from the principles.

Claims

1. A vehicle with a projection device, comprising:

a vehicle body;

a rear glass mounted on a rear side of the vehicle body; and

2. The vehicle with projection device of claim 1, wherein the projection device comprises a projection lens and a carrier sheet, the carrier sheet is attached to the rear view glass, the projection lens is mounted to the vehicle body, and wherein the projection lens projects the content onto the carrier sheet.

3. The vehicle with the projection device according to claim 2, wherein a surface of the carrier curtain is attached to the rear glass, and the content projected by the projection lens onto the carrier curtain is presented on the surface of the carrier curtain attached to the rear glass, so that the content can be obtained through the rear glass by the outside.

4. The vehicle with projection device of claim 1, wherein the projection device comprises a projection lens and a carrying mechanism, the projection lens and the carrying mechanism being mounted to the vehicle body, wherein the projection lens projects the content toward the carrying mechanism.

5. The vehicle with projection device of claim 4, wherein the carrying mechanism comprises at least one receiving member and a carrying curtain, one end of the carrying curtain is connected to the receiving member, the receiving member takes up the carrying curtain, and the other end of the carrying curtain can be stretched to unfold the carrying curtain.

6. The vehicle with the projection device according to claim 5, wherein the receptacle is mounted to the vehicle body around the rear glass, the carrier curtain is deployed to be formed inside the rear glass, and the carrier curtain has a projection surface facing the rear glass.

7. The vehicle with projection device of claim 6, wherein the projection lens is mounted on the back side of the carrier curtain to project the content to the projection surface.

8. The vehicle with projection device of claim 6, wherein the projection lens is installed on a front side of the carrier curtain to project the content to the carrier curtain to project the content onto the projection surface.

9. The vehicle with a projection device according to any one of claims 4 to 8, wherein the housing retracts the carrier sheet to expose the rear glass, and the carrier sheet is stretched to form the projection surface facing the rear glass.

10. The vehicle with the projection device according to claim 2, wherein the carrier curtain is an electrically controlled dimming glass, the carrier curtain is in a transparent opaque state when being powered on, and the carrier curtain is in a transparent state when not being powered on.

11. The vehicle with the projection device according to claim 2 or 5, wherein the carrier curtain is a transparent curtain.

12. The vehicle with the projection device according to claim 2 or 5, wherein the carrier curtain is a non-transparent curtain.

13. The vehicle with projection device of claim 12, wherein the carrier curtain has a transparent state and a non-transparent state, the carrier curtain obtains the external environment of the vehicle from the inside of the vehicle when in the transparent state, and the projection lens projects the content to the carrier curtain when in the non-transparent state.

14. The vehicle with projection device of claim 2 or 5, wherein the carrier curtain is a dimmable nano projection curtain, the carrier curtain is in an opaque state when powered on to present the content projected by the projection lens, and the carrier curtain is in a transparent state when not powered on to allow light to pass through.

15. A projection device for mounting to a vehicle, comprising:

16. The projection device of claim 15, wherein the carrier curtain is mounted to a rear glass of the vehicle.

17. The projection apparatus according to claim 15 wherein the projection apparatus further comprises a receptacle for mounting to the vehicle, wherein one end of the carrier sheet is attached to the receptacle, the receptacle furls the carrier sheet, and the other end of the carrier sheet can be stretched to unfold the carrier sheet.

18. The projection apparatus according to claim 16, wherein the carrier sheet is an electrically controlled light control glass, the carrier sheet is in a transparent opaque state when the carrier sheet is powered on, and the carrier sheet is in a transparent state when the carrier sheet is not powered on.

19. The projection device of claim 16 or 17, wherein the carrier curtain is a transparent curtain.

20. The projection device of claim 16 or 17, wherein the carrier curtain is a non-transparent curtain.

21. The projection apparatus according to claim 20, wherein the carrier sheet has a transparent state and a non-transparent state, the carrier sheet in the transparent state captures the environment outside the vehicle from the inside of the vehicle, and the projection lens projects the content onto the carrier sheet in the non-transparent state.

22. The projection apparatus according to claim 16 or 17, wherein the carrier curtain is a dimmable nano projection curtain, the carrier curtain is in an opaque state when powered on to present the content projected by the projection lens, and the carrier curtain is in a transparent state when not powered on to allow light to pass through.

23. A projection method for a vehicle with a projection device, comprising the steps of:

24. The projection method of claim 23, wherein the step (a) comprises the steps of:

25. The projection method of claim 23, wherein the step (a) comprises the steps of:

projecting the content onto the projection surface.