Projection display method of vehicle and vehicle

Abstract

The invention discloses a projection display method of a vehicle and the vehicle. The vehicle comprises a vehicle body and the projection equipment, and the projection equipment is arranged in the vehicle body. The projection display method comprises the steps that the state of a vehicle door of a vehicle is obtained; in response to the condition that the state of the vehicle door is the locking state, controlling a projection mode of the vehicle to be an internal projection mode, and projecting first projection information of projection equipment to a side vehicle window of the vehicle body; and in response to the state of the vehicle door being the pre-opening state, controlling the projection mode of the vehicle to be an external projection mode, and projecting second projection information of the projection equipment to the outside of the vehicle through the side vehicle window. Through the above mode, the projection equipment can be utilized to realize picture display in different areas based on the vehicle door state, the entertainment interaction function of the vehicle-mounted intelligent cabin can be met, and the function of safely reminding other traffic participants is also achieved.

Description

Technical Field

[0001] The present application relates to the field of vehicle-mounted projection technology, and in particular to a vehicle projection display method and a vehicle. Background Art

[0002] With the development of automobiles, the performance of the three major components used by various automobile manufacturers has not differed much, so the automobiles produced by various manufacturers are gradually developing towards intelligence and comprehensive functions. In-vehicle projection display technology is one of the important components of in-vehicle intelligent interaction. Although the side window projection display technology is available in the existing technology, it can only realize some functions of its vehicle intelligent cockpit, and cannot realize intelligent interaction in the car and interaction with external traffic participants at the same time. Summary of the invention

[0003] In order to solve the above problems, the present application proposes a vehicle projection display method and a vehicle, which can realize image display in different areas based on the state of the door, which can not only meet the entertainment interaction function of the on-board smart cockpit, but also has the function of safely reminding other traffic participants.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a projection display method for a vehicle, the projection display method comprising: obtaining the state of the vehicle door; in response to the state of the vehicle door being a locked state, controlling the projection mode of the vehicle to an internal projection mode, and projecting the first projection information of the projection device to the side window of the vehicle body; in response to the state of the vehicle door being a pre-open door state, controlling the projection mode of the vehicle to an external projection mode, and projecting the second projection information of the projection device through the side window to the outside of the vehicle.

[0005] Among them, the side windows are electrically controlled fogging windows, and the projection mode of the vehicle is controlled to be an internal projection mode. The steps of projecting the first projection information of the projection device onto the side windows of the vehicle body include: adjusting the side windows to a fogging mode; and projecting the first projection information of the projection device onto the fogging area of ​​the side windows.

[0006] Among them, the side windows include front side windows and rear side windows, the first projection information includes entertainment interaction information and assisted driving information, and the step of projecting the first projection information of the projection device onto the fogged area of ​​the side windows includes: projecting the assisted driving information onto the fogged area of ​​the front side windows; projecting the entertainment interaction information onto the fogged area of ​​the rear side windows.

[0007] Among them, the side windows are electrically controlled fogging windows, and the projection mode of the vehicle is controlled to be an external projection mode. The step of projecting the second projection information of the projection device through the side windows to the outside of the vehicle includes: adjusting the side windows to a transparent mode; and projecting the second projection information of the projection device through the side windows to the outside of the vehicle.

[0008] Among them, the side window is provided with a polarization selective film, the projection mode of the vehicle is controlled to be an internal projection mode, and the step of projecting the first projection information of the projection device onto the side window of the vehicle body includes: adjusting the polarization direction of the output light of the projection device so that the output light is reflected by the polarization selective film; projecting the first projection information of the projection device onto the side window.

[0009] Among them, the side windows include front side windows and rear side windows, the first projection information includes entertainment interaction information and assisted driving information, and the step of projecting the first projection information of the projection device onto the side windows includes: projecting the assisted driving information onto the area of ​​the front side windows where the polarization selection film is provided; projecting the entertainment interaction information onto the area of ​​the rear side windows where the polarization selection film is provided.

[0010] Among them, the side window is provided with a polarization selective film, the projection mode of the vehicle is controlled to be an external projection mode, and the step of projecting the second projection information of the projection device through the side window to the outside of the vehicle includes: adjusting the polarization direction of the output light of the projection device so that the output light passes through the polarization selective film; projecting the second projection information of the projection device through the side window to the outside of the vehicle.

[0011] In order to solve the above technical problems, another technical solution adopted in the present application is: to provide a vehicle, which includes a vehicle body, a projection device and a control device, the projection device is arranged in the vehicle body, and the control device is used to adopt any of the above-mentioned projection display methods to realize the projection display of the vehicle.

[0012] Among them, the side windows of the vehicle body are electrically controlled fogging windows. In response to the state of the vehicle doors being in a locked state, the control device adjusts the electrically controlled fogging windows to a fogging mode, and controls the projection device to project the first projection information onto the fogged area of ​​the side windows; in response to the state of the vehicle doors being in a pre-opening state, the control device adjusts the electrically controlled fogging windows to a transparent mode, and controls the projection device to project the second projection information through the side windows to the outside of the vehicle.

[0013] Among them, the side window is provided with a polarization selective film. In response to the state of the vehicle door being a locked state, the control device adjusts the polarization direction of the output light of the projection device so that the output light is reflected by the polarization selective film, and controls the projection device to project the first projection information onto the side window; in response to the state of the vehicle door being a pre-open door state, the control device adjusts the polarization direction of the output light of the projection device so that the output light passes through the polarization selective film, and controls the projection device to project the second projection information through the side window to the outside of the vehicle.

[0014] The beneficial effect of the present application is as follows: different from the prior art, the vehicle projection display method of the present application first obtains the status of the vehicle door. When the door is in a locked state, the projection device in the vehicle can be converted to an internal projection mode, and the first projection information is projected onto the side window of the vehicle to realize entertainment interaction in the vehicle. When the door is in a pre-opening state, the projection device in the vehicle is converted to an external projection mode, and the second projection information is projected outside the vehicle, thereby realizing interaction with the outside. In the above manner, the vehicle projection display method of the present application can utilize the projection device to realize screen display in different areas based on the door status, which can not only meet the entertainment interaction function of the vehicle-mounted smart cockpit, but also has the function of safely reminding other traffic participants. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a flow chart of an embodiment of a projection display method for a vehicle of the present application;

[0016] Figure 2 yes Figure 1 Schematic diagram of the process of the first embodiment of step S102;

[0017] Figure 3 yes Figure 2 A flowchart of a specific implementation method of step S202;

[0018] Figure 4 It is a structural schematic diagram of an embodiment of a side window of the present application;

[0019] Figure 5 yes Figure 1 Schematic diagram of the process of the first embodiment of step S103;

[0020] Figure 6 yes Figure 1 A schematic diagram of the flow chart of the second embodiment of step S102;

[0021] Figure 7 It is a structural schematic diagram of an embodiment of the polarization selective film of the present application;

[0022] Figure 8 yes Figure 6 A flowchart of a specific implementation method of step S502;

[0023] Fig. 9 yes Figure 1 A schematic diagram of the flow chart of the second embodiment of step S103;

[0024] Fig.10 It is a structural schematic diagram of an embodiment of a vehicle of the present application;

[0025] Fig.11 It is a structural schematic diagram of an embodiment of the projection device of the present application. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0027] With the development of electric vehicles, the performance of the three major components used by various electric vehicle manufacturers has not differed much, so the electric vehicles produced by various manufacturers are gradually developing towards intelligence and comprehensive functions. In-vehicle projection display technology is one of the important components of in-vehicle intelligent interaction. Although the side window projection display technology is currently available in the existing technology, it can only realize some functions of its vehicle intelligent cockpit, and cannot realize intelligent interaction in the car and interaction with external traffic participants at the same time.

[0028] In order to solve the above problems, the present application first proposes a projection display method for a vehicle, see Figure 1 , Figure 1 FIG. 1 is a flow chart of an embodiment of a projection display method for a vehicle of the present application. Figure 1 As shown, the vehicle interior projection display method of this embodiment specifically includes steps S101 to S103:

[0029] Step S101: Acquire the status of the vehicle door.

[0030] In this embodiment, if you want to realize the projection display of the vehicle, in order to determine the projection mode of the projection device, you first need to obtain the door status of the vehicle through the control device. The door status includes two states. One is the locked state of the vehicle during starting, driving, and parking. The other door status refers to the pre-opening state. In this embodiment, the pre-opening state refers to the state when the child lock of the door is not locked and the door handle is pulled by the hand, the child lock is not locked and the electric door opening button is pressed. When the driver needs to get on the car to open the door, the state when the Bluetooth key is connected and the mobile phone bound to the vehicle is connected to the car computer can also be the pre-opening state of the door. That is, when the control device detects the above situation, it determines that the door is in the pre-opening state. In other embodiments, the pre-opening state of the door includes but is not limited to the above situation.

[0031] Step S102: In response to the door being in a locked state, controlling the projection mode of the vehicle to be an internal projection mode, and projecting first projection information of the projection device onto a side window of the vehicle body.

[0032] When the control device detects that the door is in a locked state, the projection mode of the vehicle is controlled to change to an internal projection mode. At this time, the control device controls the projection device to project the first projection information onto the side windows of the vehicle body for entertainment interaction by the occupants. In addition, the projection device can project different first projection information onto different side windows. For example, when projecting onto the front side windows, the first projection information can be driving assistance information (such as rearview mirror image information, vehicle distance information on both sides, etc.) for the driver to view. When projecting onto the rear side windows, the first projection information can be entertainment interaction information (such as movies, etc.) for the rear passengers to view. When projecting onto the side windows, the area where the projection information is projected can also be set based on actual conditions. For example, when projecting onto the rear side windows, the projection area can be set to part or all of the rear side windows to facilitate viewing by the rear passengers.

[0033] Step S103: In response to the state of the vehicle door being the pre-door opening state, controlling the projection mode of the vehicle to be the external projection mode, and projecting the second projection information of the projection device to the outside of the vehicle through the side window.

[0034] When the control device detects that the state of the vehicle door is in the pre-door opening state, the projection mode of the vehicle is controlled to change to the external projection mode, and the projection information of the projection device is projected outside the vehicle through the side window.

[0035] For example, when the control device detects that the vehicle door is in a state where the child lock is unlocked and the door handle inside is pulled, or the child lock is unlocked and the electric door opening button is pressed, the vehicle door is in a pre-door opening state. In order to remind other traffic participants that the door on this side is about to open, the control device controls the vehicle to project the second projection information through the side window to the outside of the vehicle. At this time, the second projection information can be dynamic image information of the door about to open; when the control device detects that the vehicle door is in a state where the Bluetooth key is connected and the mobile phone bound to the vehicle is connected to the vehicle computer, the vehicle door is also in a pre-door opening state, but the driver needs to open the door to get in the car. At this time, the control device can also control the vehicle to project the second projection information through the side window to the outside of the vehicle to welcome the driver to get in the car. At this time, the second projection information can be a welcoming dynamic pattern information.

[0036] Different from the prior art, the vehicle projection display method of the present application first obtains the status of the vehicle door. When the door is in a locked state, the projection device in the car can be switched to an internal projection mode to project the first projection information onto the side window of the vehicle to realize entertainment interaction in the car. When the door is in a pre-opening state, the projection device in the car is switched to an external projection mode to project the second projection information outside the vehicle, thereby realizing interaction with the outside. In the above manner, the vehicle projection display method of the present application can utilize the projection device to realize screen display in different areas based on the door status, which can not only meet the entertainment interaction function of the vehicle-mounted smart cockpit, but also has the function of safely reminding other traffic participants.

[0037] Optionally, in this embodiment, the side windows of the vehicle body can be set as electrically controlled fogging windows, the vehicle projection mode is controlled to be an internal projection mode, and the method of projecting the first projection information of the projection device onto the side windows of the vehicle body can be as follows: Figure 2 See Figure 2 , Figure 2 yes Figure 1 Schematic diagram of the flow chart of the first embodiment of step S102 in FIG. Figure 2 The method shown implements step S102, and the specific implementation steps include steps S201 to S202:

[0038] Step S201: Adjust the side windows to the fogging mode.

[0039] When the control device detects that the vehicle door is in a locked state, the vehicle can be controlled to be in the internal projection mode. When the vehicle is controlled to be switched to the internal projection mode, in this embodiment, the side windows are electrically controlled fogging windows. At this time, the control device can adjust the side windows to the fogging mode so that the fogged area of ​​the side windows serves as the projection area of ​​the projection device to display the first projection information.

[0040] Step S202: Projecting first projection information of the projection device onto the fogged area of ​​the side window.

[0041] When the control device adjusts the electronically controlled atomization vehicle to the atomization mode, the projection device can be controlled to project the first projection information onto the atomization area of ​​the side window.

[0042] Optionally, in this embodiment, the side windows include front side windows and rear side windows, the first projection information includes entertainment interaction information and auxiliary driving information, and the method for projecting the first projection information of the projection device onto the atomized area of ​​the side windows is as follows: Figure 3 See Figure 3 , Figure 3 yes Figure 2 The flowchart of step S202 in the embodiment is as follows. Figure 3The method shown implements step S202, and the specific implementation steps include step S301 to step S302:

[0043] Step S301: Projecting the auxiliary driving information onto the fogged area of ​​the front side window.

[0044] See also Figure 4 , Figure 4 It is a structural schematic diagram of an embodiment of a side window of the present application. Figure 4 The left figure is a schematic diagram of the structure of an embodiment of the front side window. Figure 4 The figure on the right is a schematic diagram of the structure of an embodiment of the rear side window. Figure 4 As shown in the left figure, as mentioned above, in order to enable the driver to observe the outside world, the control device controls the front side windows to fog only a part of the front side windows. At this time, the control device can project the assisted driving information onto the fogged area of ​​the front side windows, where the assisted driving information includes but is not limited to the electronic rearview mirror image information, the distance prompt information on both sides of the vehicle and other information.

[0045] Step S302: Projecting the entertainment interaction information onto the fogged area of ​​the rear side window.

[0046] like Figure 4 As shown in the right figure, as mentioned above, in order to enable the rear-seat driver to see the projection information more clearly, the rear side windows can be completely fogged when fogging. At this time, the control device can project the entertainment interaction information to the fogged area of ​​the rear side windows. Among them, the entertainment interaction information includes but is not limited to movie information, driving route information and other information. In other embodiments, the rear side windows can also be fogged only in part, which is not limited here.

[0047] Optionally, in this embodiment, the side windows of the vehicle body can be set as electrically controlled fogging windows, and the projection mode of the vehicle is controlled to be an external projection mode. The method of projecting the projection information of the projection device through the side windows to the outside of the vehicle can be as follows: Figure 5 See Figure 5 , Figure 5 yes Figure 1 Schematic diagram of the flow chart of the first embodiment of step S103 in FIG. Figure 5 The method shown implements step S103, and the specific implementation steps include step S401 to step S402:

[0048] Step S401: Adjust the side windows to transparent mode.

[0049] When the control device detects that the vehicle door is in the pre-opening state, the vehicle can be controlled to be in the external projection mode. When the vehicle is controlled to be switched to the external mode, in this embodiment, the side windows are electrically controlled fogging windows. At this time, the control device can adjust the side windows to the transparent mode to make the ground outside the vehicle the projection area of ​​the projection device.

[0050] Step S402: Projecting the second projection information of the projection device to the outside of the vehicle through the side window.

[0051] When the control device adjusts the electrically controlled atomized vehicle to the transparent mode, the projection device can be controlled to project the second projection information outside the vehicle. The second projection information may include dynamic pattern information of the door about to be opened or dynamic pattern information of welcoming guests.

[0052] For example, when the control device detects that the vehicle door is in a state where the child lock is unlocked and the door handle inside is pulled, or the child lock is unlocked and the electric door opening button is pressed, the vehicle door is in a pre-door opening state. In order to remind other traffic participants that the door on this side is about to open, the second projection information projected at this time can be dynamic image information of the door about to open; when the control device detects that the vehicle door is in a state where the Bluetooth key is connected and the mobile phone bound to the vehicle is connected to the vehicle computer, the vehicle door is also in a pre-door opening state, but the driver needs to open the door to get in the car. At this time, the second projection information projected can be a welcoming dynamic pattern information.

[0053] Optionally, in this embodiment, the side window is provided with a polarization selective film, the vehicle projection mode is controlled to be an internal projection mode, and the method of projecting the first projection information of the projection device onto the side window of the vehicle body can be as follows: Figure 6 See Figure 6 , Figure 6 yes Figure 1 102 in the second embodiment of the process flow diagram. This embodiment can be Figure 6 The method shown implements step S102, and the specific implementation steps include step S501 to step S502:

[0054] Step S501: adjusting the polarization direction of the output light of the projection device so that the output light is reflected by the polarization selective film.

[0055] In this embodiment, in order to realize that the projection information can be displayed on the side windows and on the ground outside the vehicle, the side windows can be provided with polarization selective films, that is, based on the principle of polarization splitting, the glass transmittance of the side windows under different usage states is not changed, and the projection images can be displayed in different areas. Figure 7 , Figure 7 Schematic diagram of the structure of an embodiment of the polarization selective film of the present application. Figure 7As shown, the short side of the polarization selective film is the polarization splitting surface, and the long side is the rough full reflection surface. The horizontal lines and dots on the light correspond to the two polarization directions of the projection light, namely the P component and the S component. The P component is the polarization component parallel to the XOY plane, and the S component is the polarization component perpendicular to the XOY plane. After the non-polarized projection light irradiated from above and below hits the microstructure of the film layer, the P light passes through the polarization splitting surface of the microstructure, and the S light is reflected and hits the rough diffuse reflection surface and enters the human eye. Therefore, by controlling the polarization direction of the output light of the projection device, the display area of ​​the projection screen can be freely switched.

[0056] In this embodiment, when the control device detects that the vehicle door is locked, in order to switch the projection mode of the vehicle to the internal projection mode, the control device can adjust the polarization direction of the output light of the projection device so that the output light is reflected by the polarization selective film. In this embodiment, the projection device is additionally provided with a polarization light conversion device and a half-wave plate; the polarization light conversion device can convert the output light of the light source of the projection device into polarized light, and the half-wave plate can change the polarization direction of the output light. That is, the control device can adjust the polarization direction of the output light of the projection device by adjusting the rotation direction of the half-wave plate, so that the output light is reflected by the polarization selective film.

[0057] Step S502: Projecting first projection information of the projection device onto the side window.

[0058] At this time, after the control device adjusts the polarization direction of the output light of the projection device, the projection information can be reflected by the polarization selective film into the human eye, and the control device can control the projection device to project the first projection information onto the side window.

[0059] Optionally, in this embodiment, the side windows include front side windows and rear side windows, the first projection information includes entertainment interaction information and auxiliary driving information, and the method for projecting the first projection information of the projection device onto the side windows is as follows: Figure 8 See Figure 8 , Figure 8 yes Figure 6 The flowchart of step S502 in the embodiment is as follows. Figure 8 The method shown implements step S502, and the specific implementation steps include step S601 to step S602:

[0060] Step S601: Projecting the auxiliary driving information onto the area of ​​the front side window where the polarization selective film is provided.

[0061] As mentioned above, in order to enable the driver to observe the outside world, the front side windows can be provided with polarization selective films only in partial areas. At this time, the control device can project the auxiliary driving information onto the area of ​​the front side windows where the polarization selective films are provided. The auxiliary driving information includes but is not limited to the electronic rearview mirror picture information, the distance prompt information on both sides of the vehicle and other information.

[0062] Step S602: Projecting the entertainment interaction information onto the area of ​​the rear side window provided with the polarization selective film.

[0063] In order to enable the rear-seat driver to see the projected information more clearly, the entire area of ​​the rear side window can be provided with a polarization selective film, and at this time, the control device can project the entertainment interactive information onto the area of ​​the rear side window provided with the polarization selective film. The entertainment interactive information includes but is not limited to movie information, driving route information and other information.

[0064] Optionally, in this embodiment, the side window is provided with a polarization selective film, the projection mode of the vehicle is controlled to be an external projection mode, and the method of projecting the projection information of the projection device through the side window to the outside of the vehicle can be as follows: Fig. 9 See Fig. 9 , Fig. 9 yes Figure 1 Schematic diagram of the flow chart of the second embodiment of step S103 in FIG. Fig. 9 The method shown implements step S103, and the specific implementation steps include step S701 to step S702:

[0065] Step S701: adjusting the polarization direction of the output light of the projection device so that the output light can pass through the polarization selective film.

[0066] In this embodiment, when the control device detects that the vehicle door is in the pre-opening state, in order to switch the projection mode of the vehicle to the external projection mode, the control device can adjust the polarization direction of the output light of the projection device so that the output light passes through the polarization selection film.

[0067] Step S702: Projecting the second projection information of the projection device to the outside of the vehicle through the side window.

[0068] At this time, when the control device adjusts the polarization direction of the output light of the projection device, the projection information can be projected outside the vehicle through the side window, and the control device can control the projection device to project the second projection information onto the side window. The second projection information may include dynamic pattern information of the door about to be opened or dynamic pattern information of welcoming guests.

[0069] For example, when the control device detects that the vehicle door is in a state where the child lock is unlocked and the door handle inside is pulled, or the child lock is unlocked and the electric door opening button is pressed, the vehicle door is in a pre-door opening state. In order to remind other traffic participants that the door on this side is about to open, the second projection information projected at this time can be dynamic image information of the door about to open; when the control device detects that the vehicle door is in a state where the Bluetooth key is connected and the mobile phone bound to the vehicle is connected to the vehicle computer, the vehicle door is also in a pre-door opening state, but the driver needs to open the door to get in the car. At this time, the second projection information projected can be a welcoming dynamic pattern information.

[0070] Optionally, the present application further proposes a vehicle, see Fig.10 , Fig.10 Schematic diagram of the structure of a vehicle of the present application. Fig.10 As shown, the vehicle 100 of this embodiment includes a vehicle body 10, a projection device 20 and a control device 30. The projection device 20 is arranged in the vehicle body 10, and the control device 30 is used to implement projection display of the vehicle 100 by adopting the projection display method of any of the above embodiments.

[0071] Alternatively, if Fig.10 As shown, in the vehicle 100, if the side window 11 of the vehicle body 10 is an electrically controlled fogging window, in response to the state of the vehicle door being a locked state, the control device 30 adjusts the electrically controlled fogging window to a fogging mode, and controls the projection device 20 to project the first projection information to the fogging area of ​​the side window 11; in response to the state of the vehicle door being a pre-opening state, the control device 30 adjusts the electrically controlled fogging window to a transparent mode; and controls the projection device 20 to project the second projection information through the side window 11 to the outside of the vehicle.

[0072] In this embodiment, when the side window 11 of the vehicle body 10 is an electrically controlled fogging window, the projection device 20 can be a traditional projection device.

[0073] Optionally, in the vehicle 100, the side windows are provided with polarization selective films. In response to the state of the vehicle door being a locked state, the control device 30 adjusts the polarization direction of the output light of the projection device 20 so that the output light is reflected by the polarization selective film, and controls the projection device 20 to project the first projection information onto the side window 11; in response to the state of the vehicle door being a pre-door opening state, the control device 30 adjusts the polarization direction of the output light of the projection device 20 so that the output light passes through the polarization selective film, and controls the projection device 20 to project the second projection information through the side window 11 to the outside of the vehicle.

[0074] Among them, in this embodiment, if the side window 11 is an ordinary window, and a polarization selective film is provided on the side window 11, the projection device 20 needs to be additionally provided with a polarization light conversion device and a half-wave plate; the polarization light conversion device can convert the output light of the light source of the projection device 20 into polarized light, and the half-wave plate can change the polarization direction of the output light. If the projection device is a liquid crystal projection device or an LCOS projection device, because the output light of the liquid crystal projection device or the LCOS projection device is linearly polarized light, it is only necessary to add an electrically controlled rotating half-wave plate in front of the lens to change the polarization direction of the output light.

[0075] See also Fig.11 , Fig.11 2 is a schematic diagram of the structure of an embodiment of the projection device of the present application. If the vehicle window is a conventional vehicle window and a polarization selective film is provided, the projection device 20 can be as follows Fig.11 Settings. Fig.11 As shown, the projection device 20 includes an optical machine 21, a polarization converter 22 and a half-wave plate 23. The optical machine 21 includes a light source 211, a light homogenizing device 212, a reflector 213, a prism 214, a display chip 215 and a projection lens 216. The polarization converter 22 is arranged between the light source 211 and the light homogenizing device 212 of the optical machine 21, and is used to convert the output light of the light source 211 into polarized light; the half-wave plate 23 is arranged between the projection lens 216 and the prism 214 of the optical machine 21, and is used to adjust the polarization direction of the output light.

[0076] In one embodiment, a computer program product or computer program is provided, the computer program product or computer program includes computer instructions, the computer instructions are stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the electronic device performs the steps in the above-mentioned method embodiments.

[0077] In addition, if the above functions are implemented in the form of software functions and sold or used as independent products, they can be stored in a storage medium readable by a mobile terminal, that is, the present application also provides a storage device storing program data, the program data can be executed to implement the method of the above embodiment, and the storage device can be, for example, a USB flash drive, an optical disk, a server, etc. In other words, the present application can be embodied in the form of a software product, which includes a number of instructions for enabling a smart terminal to execute all or part of the steps of the method described in each embodiment.

[0078] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0079] Any process or method description in a flowchart or otherwise described herein may be understood to represent a mechanism, segment or portion of a code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by technicians in the technical field to which the embodiments of the present application belong.

[0080] The logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as an ordered list of executable instructions for implementing the logical functions, and can be embodied in any computer-readable medium for use by an instruction execution system, device or apparatus (which can be a personal computer, server, network device or other system that can fetch instructions from the instruction execution system, device or apparatus and execute the instructions), or in combination with these instruction execution systems, devices or apparatuses. For the purpose of this specification, "computer-readable medium" can be any device that can contain, store, communicate, propagate or transmit a program for use by an instruction execution system, device or apparatus or in combination with these instruction execution systems, devices or apparatuses. More specific examples of computer-readable media (a non-exhaustive list) include the following: an electrical connection with one or more wires (electronic device), a portable computer disk box (magnetic device), a random access memory (RAM), a read-only memory (ROM), an erasable and programmable read-only memory (EPROM or flash memory), a fiber optic device, and a portable compact disk read-only memory (CDROM). In addition, the computer-readable medium may even be paper or other suitable medium on which the program is printed, since the program may be obtained electronically, for example, by optically scanning the paper or other medium and then editing, interpreting or processing in other suitable ways if necessary, and then stored in a computer memory.

[0081] The above descriptions are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A projection display method for a vehicle, characterized in that: The vehicle comprises a vehicle body and a projection device, wherein the projection device is arranged in the vehicle body, and the projection display method comprises: Get the status of the vehicle's doors; In response to the state of the vehicle door being a locked state, controlling the projection mode of the vehicle to be an internal projection mode, and projecting the first projection information of the projection device onto the side window of the vehicle body; In response to the state of the vehicle door being a pre-door opening state, the projection mode of the vehicle is controlled to be an external projection mode, and the second projection information of the projection device is projected outside the vehicle through the side window.

2. The projection display method according to claim 1, characterized in that: The side window is an electrically controlled fogging window, the projection mode of the vehicle is controlled to be an internal projection mode, and the step of projecting the first projection information of the projection device onto the side window of the vehicle body comprises: Adjusting the side window to a fogging mode; The first projection information of the projection device is projected onto the fogged area of ​​the side window.

3. The projection display method according to claim 2, characterized in that: The side windows include front side windows and rear side windows, the first projection information includes entertainment interaction information and auxiliary driving information, and the step of projecting the first projection information of the projection device onto the atomized area of ​​the side windows includes: Projecting the auxiliary driving information onto the atomized area of ​​the front side window; The entertainment interaction information is projected onto the fogged area of ​​the rear side window.

4. The projection display method according to claim 1, characterized in that: The side window is an electrically controlled atomizing window, the projection mode of the vehicle is controlled to be an external projection mode, and the step of projecting the second projection information of the projection device to the outside of the vehicle through the side window includes: adjusting the side window to a transparent mode; The second projection information of the projection device is projected outside the vehicle through the side window.

5. The projection display method according to claim 1, characterized in that: The side window is provided with a polarization selective film, the projection mode of the vehicle is controlled to be an internal projection mode, and the step of projecting the first projection information of the projection device onto the side window of the vehicle body comprises: adjusting the polarization direction of the output light of the projection device so that the output light is reflected by the polarization selective film; The first projection information of the projection device is projected onto the side window.

6. The projection display method according to claim 5, characterized in that: The side windows include front side windows and rear side windows, the first projection information includes entertainment interaction information and auxiliary driving information, and the step of projecting the first projection information of the projection device onto the side windows includes: Projecting the auxiliary driving information onto the area of ​​the front side window where the polarization selective film is disposed; The entertainment interaction information is projected onto the area of ​​the rear side window where the polarization selective film is disposed.

7. The projection display method according to claim 1, characterized in that: The side window is provided with a polarization selective film, the projection mode of the vehicle is controlled to be an external projection mode, and the step of projecting the second projection information of the projection device to the outside of the vehicle through the side window comprises: adjusting the polarization direction of the output light of the projection device so that the output light passes through the polarization selective film; The second projection information of the projection device is projected outside the vehicle through the side window.

8. A vehicle, characterized in that: It comprises a vehicle body, a projection device and a control device, wherein the projection device is arranged in the vehicle body, and the control device is used to realize the projection display of the vehicle by adopting the projection display method according to any one of claims 1 to 7.

9. The vehicle according to claim 8, characterized in that The side window of the vehicle body is an electrically controlled atomizing window. In response to the state of the vehicle door being in a locked state, the control device adjusts the electrically controlled atomizing window to a atomizing mode, and controls the projection device to project the first projection information onto the atomized area of ​​the side window; In response to the state of the vehicle door being a pre-door opening state, the control device adjusts the electrically controlled fogging window to a transparent mode, and controls the projection device to project the second projection information through the side window to outside the vehicle.

10. The vehicle according to claim 8, characterized in that The side window is provided with a polarization selective film. In response to the state of the vehicle door being a locked state, the control device adjusts the polarization direction of the output light of the projection device so that the output light is reflected by the polarization selective film, and controls the projection device to project first projection information onto the side window. In response to the state of the vehicle door being a pre-door opening state, the control device adjusts the polarization direction of the output light of the projection device so that the output light passes through the polarization selective film, and controls the projection device to project second projection information through the side window to the outside of the vehicle.

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