Light source module, method for controlling light source module, and vehicle

Abstract

A light source module, a method for controlling the light source module, and a vehicle. The light source module comprises a light emitting module and a first optical switch module. The light emitting module is used for emitting a light beam comprising at least one color. The first optical switch module adjusts the position of an optical switch so as to transmit the received light beam to different display modules. By means of providing the optical switch and adjusting the position of the optical switch, multi-scenario multiplexing of a light source is realized, and the display requirements of a plurality of display modules are realized by means of one light source, thereby reducing the complexity of the overall light source module, improving the utilization rate of the light source, and reducing costs.

Description

A light source module, a method for controlling the light source module, and a vehicle. Technical Field

[0001] This application relates to the field of optical display, and more particularly to a light source module, a method for controlling the light source module, and a vehicle. Background Technology

[0002] In recent years, with the increasing demand for efficient human-vehicle information interaction, in-vehicle display technology has been continuously iterating and upgrading to enhance the driving experience. Various display technologies have emerged on the market, such as traditional screen displays, projection displays, and transparent displays. These technologies significantly improve the display experience for consumers inside the car, making the cabin more premium and technologically advanced. Among them, laser projection systems have gradually gained attention and recognition due to their advantages such as high brightness and large image size.

[0003] With the development of intelligent driving in vehicles, the application scenarios of in-vehicle display technology are gradually increasing, such as headlight modules with projection functions, in-cabin display systems, and head-up displays for the driver's seat. More application scenarios mean that more light sources need to be installed in the vehicle to meet the corresponding application scenarios. When expanding additional in-vehicle display application scenarios, more light source modules must be added, which not only increases the complexity of the vehicle display system design, but also increases the cost of the light sources in the display system, resulting in low light source utilization efficiency.

[0004] Therefore, how to improve the utilization rate of light sources to meet the display needs of vehicles in various scenarios is a technical problem that urgently needs to be solved in this field. Summary of the Invention

[0005] This application provides a light source module, a method for controlling the light source module, and a vehicle. By adding an optical switch to a light source remote positioning scheme, this application enables the reuse of the light source across multiple scenarios. This application expands the application scenarios of a single light source, reduces the complexity of the overall module, improves the utilization rate of the light source, and reduces the light source cost required for multi-scenario applications.

[0006] In a first aspect, a light source module is provided. The light source module includes a light-emitting module and a first optical switch module. The first optical switch module includes a first optical switch and a first driving module, the first driving module being used to drive the first optical switch to switch between a first position and a second position. The light-emitting module is used to emit a first light beam, the first light beam including at least one of a red light beam, a green light beam, or a blue light beam. When the first optical switch is in the first position, the light beam of the first color in the first light beam is transmitted into a first optical fiber. When the first optical switch is in the second position, the light beam of the first color is transmitted into a second optical fiber. The first optical fiber includes an optical fiber communicating with a first display module, and the second optical fiber includes an optical fiber communicating with a second display module.

[0007] Based on the above solution, this application provides a light source module with a switchable optical switch. The optical switch, positioned at different locations, allows the light beam incident on the switch to be transmitted to different display modules. The light source module provided by this application can meet the concurrent display requirements of at least two display modules and also satisfy the color display requirements of the display modules. This application not only reduces the light source cost required for multiple display modules but also reduces the number of light sources in the overall light source pool, decreases the complexity of the light source module, and improves the utilization rate of the light source.

[0008] It should be noted that the first optical fiber includes one or more optical fibers, and the second optical fiber includes one or more optical fibers. However, no specific limit is made on the exact number of optical fibers contained in the first and second optical fibers.

[0009] It should be noted that the first beam can be a monochromatic beam including one of red, green or blue beams, or a mixed beam including any two of red, green or blue beams, or a tricolor mixed beam including red, green and blue beams.

[0010] In conjunction with the first aspect, in certain implementations of the first aspect, the first light beam comprises light beams of at least two colors. Specifically, when the first optical switch is in a first position, the light beam of the first color is transmitted into the first optical fiber, and the light beam of the second color in the first light beam is transmitted into the second optical fiber. When the first optical switch is in a second position, either the light beam of the first color is transmitted into the second optical fiber, or the light beam of the second color is transmitted into the first optical fiber.

[0011] Based on the above scheme, the first beam is a mixed beam comprising at least two colors. An optical switch is used to separate the different colors of the first beam and transmit the different colored beams to different optical fibers. This application achieves beam splitting of the mixed beam through an optical switch and transmits beams of different wavelengths in different directions. This application further reduces the number of optical switch modules required in the light source module, and achieves control of the mixed beam through the optical switch, reducing the difficulty and complexity of the design of the light output module location.

[0012] In conjunction with the first aspect, in some implementations of the first aspect, the first light beam includes light beams of three colors. The first driving module is also used to drive the first optical switch to switch between a first position, a second position, and a third position. When the first optical switch is in the first position, the first-color light beam is transmitted into the first optical fiber, the second-color light beam in the first light beam is transmitted into the second optical fiber, and the third-color light beam in the first light beam is transmitted into the third optical fiber. When the first optical switch is in the second position, the first-color light beam is transmitted into the second optical fiber, the second-color light beam is transmitted into the third optical fiber, and the third-color light beam is transmitted into the first optical fiber. When the first optical switch is in the third position, the first-color light beam is transmitted into the third optical fiber, the second-color light beam is transmitted into the first optical fiber, and the third-color light beam is transmitted into the second optical fiber. The third optical fiber includes an optical fiber communicating with the third display module.

[0013] Based on the above scheme, the optical switch can split the first beam containing three colors and transmit beams of different wavelengths to different optical fibers, thereby transmitting them to different display modules. The optical switch switches between three positions, changing the three colors of the beam transmitted to the three display modules. When the optical switch is in different positions, each of the three display modules acquires a beam of different primary colors, thus achieving color display. This application achieves control of the mixed beam using a single optical switch module and can simultaneously meet the concurrent display requirements of three display modules. By switching positions, the optical switch changes the color of the beam transmitted to each display module, satisfying the color display requirements of the three display modules. When this application is extended to three display modules, the utilization rate of the light source is further improved.

[0014] In conjunction with the first aspect, in some implementations of the first aspect, the light-emitting module includes a first light-emitting module, a second light-emitting module, and a third light-emitting module. The first light-emitting module is used to emit a light beam of a first color, the second light-emitting module is used to emit a light beam of a second color, and the third light-emitting module is used to emit a light beam of a third color. The light source module also includes a second optical switch module for transmitting the light beam of the second color into the first optical fiber or the second optical fiber. The light source module also includes a third optical switch module for transmitting the light beam of the third color into the first optical fiber or the second optical fiber.

[0015] Based on the above scheme, the light source module includes three light-emitting modules for emitting beams of the three primary colors. Each light-emitting module corresponds to a light switch module, which controls the transmission direction of the beam emitted by the corresponding light-emitting module. By adjusting the position of the light switch, the beams of each color are transmitted to the first display module and the second display module respectively. The overall structure is simple, giving the overall light source module and display module high stability.

[0016] In conjunction with the first aspect, in some implementations of the first aspect, the first driving module is further configured to drive the first optical switch to switch between a first position, a second position, and a third position. When the first optical switch is in the third position, a beam of light of the first color is transmitted into the third optical fiber. The third optical fiber includes an optical fiber connected to the third display module.

[0017] Based on the above scheme, by adjusting the position of the light switch, the light beams of each color are transmitted to the first display module, the second display module, and the third display module respectively. The overall structure is simple, giving the overall light source module and display module high stability.

[0018] It should be noted that the second driving module can similarly drive the second optical switch to switch between three positions, thereby changing the transmission direction of the incident second-color beam. Similarly, the third driving module drives the position of the third optical switch to change the transmission direction of the third-color beam. For the sake of simplicity, this application will not elaborate further.

[0019] In conjunction with the first aspect, in some implementations of the first aspect, the light source module further includes a control module. The control module is used to send first indication information to the first driving module. The first indication information is used to indicate that the first optical switch is in a first position, a second position, or a third position.

[0020] Based on the above scheme, the control module sends a first instruction message to the first drive module based on the operating information of the display module, instructing the drive module to control the position of the light switch, thereby meeting the display requirements of the display module. The first instruction message can also instruct the first light switch to be in a fixed position and not to switch. For example, when some display modules require monochromatic light to be constantly on, the position of the light switch can be fixed to stop switching. As another example, the first display module includes modules with daytime display requirements, and the second display module includes modules with nighttime display requirements. During the day, the user can send the first instruction message to instruct the light switch to be fixed in a specific position, allowing the light beam to enter the first display module. At night, the user can send the first instruction message to instruct the light switch to be fixed in a specific position, allowing the light beam to enter the second display module. This application allows for time-division fine-grained control of the display module, instructing the light switch to switch between different positions or be fixed in a specific position according to the needs of the display module. This application can further meet the personalized needs of multiple display modules and improve user satisfaction.

[0021] It should be noted that the control module can also send a first indication message to the second drive module to indicate the position of the second optical switch; the control module can also send a second indication message to the second drive module to indicate the position of the second optical switch. Similarly, the control module can send a first indication message or a third indication message to the third drive module. This application does not impose any special limitations on the indication messages sent by the control module.

[0022] In conjunction with the first aspect, in some implementations of the first aspect, the first indication information is also used to instruct the first optical switch to switch between a first position and a second position at a first frequency.

[0023] In conjunction with the first aspect, in some implementations of the first aspect, the first indication information is also used to instruct the first optical switch to switch between the first position, the second position, and the third position at a second frequency.

[0024] Based on the above scheme, the optical switch can switch between different positions at a specific frequency according to the indication information, so as to satisfy the display module to obtain the light beams of the three primary colors in a short time. Combined with the persistence of color vision of the human eye, this achieves color display. This application controls the color of the light beam transmitted to the display module and the time interval between different colored light beams by controlling the position switching of the optical switch. The overall device has a simple structure, high stability, and high utilization of the light source.

[0025] In conjunction with the first aspect, in some implementations of the first aspect, the control module is further configured to acquire the operating information of the display module and determine the first instruction information based on the operating information. The operating information includes at least one of the following: image information to be displayed by the first, second, or third display module; operating mode information of the first, second, or third display module; and operating time information of the first, second, or third display module.

[0026] Based on the above solution, the control module can control the light switch according to the multi-dimensional needs of the display module, thereby controlling the color of the light beam incident on the display module. This application can meet various operational requirements of the display module, further improving user experience and user satisfaction.

[0027] It should be noted that the display module's operating mode information includes, but is not limited to, color projection mode, monochrome projection mode, and constant illumination mode. For example, the first display module includes a roof-mounted display module, which is in monochrome projection mode at a specific time. Based on this, the control module controls the first light switch to be fixed in a first position at a specific time, so that a beam of light of the first color is transmitted to the first display module, enabling the first display module to achieve monochrome display.

[0028] In conjunction with the first aspect, in some implementations of the first aspect, the optical switch includes a grating mirror structure or a mirror structure.

[0029] Based on the above scheme, the optical switch structure of this application is simple, has good stability, and the overall system complexity of the optical module is low.

[0030] It should be noted that when the optical switch is a reflector structure, it is used to reflect the incident light beam and change the propagation direction of the light beam exiting the optical switch. When the optical switch is a grating reflector structure, it is used to diffract the incident light beam, diffracting the light beam of different wavelengths to different propagation directions.

[0031] In conjunction with the first aspect, in some implementations of the first aspect, the light source module further includes a lens module. The lens module is used to receive the first light beam and transmit the first light beam to the first optical switch.

[0032] Based on the above solution, the light source module of this application also includes a lens module. The lens module is used to couple the light beam emitted from the light-emitting module to the optical switch, thereby reducing the light loss of the light emitted from the light-emitting module when it is transmitted to the optical switch and further improving the light output efficiency of the overall light source module.

[0033] It should be noted that the lens module transmits the first beam to the first optical switch, including focusing the first beam to the first optical switch.

[0034] In conjunction with the first aspect, in some implementations of the first aspect, the light source module further includes a lens module. The lens module is used to receive a light beam of the first color and couple the light beam of the first color into a first optical fiber, or couple the light beam of the first color into a second optical fiber.

[0035] Based on the above solution, the light source module of this application also includes a lens module, which is used to couple the light beam emitted from the optical switch into the optical fiber, thereby reducing the light loss of the light beam transmitted into the optical fiber and further improving the light output efficiency of the overall light source module.

[0036] It should be noted that the lens module couples the light beam emitted from the optical switch into the optical fiber, including focusing the light beam emitted from the optical switch into the optical fiber.

[0037] It should be understood that the above-mentioned lens module may include one or more lenses, and this application does not make any special limitation on the type or number of lenses in the lens module.

[0038] It should be understood that the above-mentioned lens module may include a module composed of one or more optical elements, or it may include an integrated waveguide structure. This application does not impose any special limitations on the specific form of the lens module.

[0039] Secondly, a method for controlling a light source module is provided. The light source module includes a light-emitting module and a first optical switch module. The light-emitting module emits a first light beam, which includes at least one of a red beam, a green beam, or a blue beam. The first optical switch module includes a first optical switch and a first driving module. The method includes sending first indication information, which instructs the first driving module to drive the first optical switch to switch between a first position and a second position. When the first optical switch is in the first position, a beam of a first color in the first light beam is transmitted into a first optical fiber. When the first optical switch is in the second position, the beam of the first color is transmitted into a second optical fiber. The first optical fiber includes an optical fiber communicating with a first display module, and the second optical fiber includes an optical fiber communicating with a second display module.

[0040] In conjunction with the second aspect, in some implementations of the second aspect, the first light beam comprises light beams of at least two colors. When the first optical switch is in a first position, the light beam of the first color is transmitted into the first optical fiber, and the light beam of the second color in the first light beam is transmitted into the second optical fiber. When the first optical switch is in a second position, either the light beam of the first color is transmitted into the second optical fiber, or the light beam of the second color is transmitted into the first optical fiber.

[0041] In conjunction with the second aspect, in some implementations of the second aspect, the first light beam includes light beams of three colors. The first indication information is further used to instruct the first driving module to drive the first optical switch to switch between a first position, a second position, and a third position. When the first optical switch is in the first position, the first-color light beam is transmitted into the first optical fiber, the second-color light beam in the first light beam is transmitted into the second optical fiber, and the third-color light beam in the first light beam is transmitted into the third optical fiber. When the first optical switch is in the second position, the first-color light beam is transmitted into the second optical fiber, the second-color light beam is transmitted into the third optical fiber, and the third-color light beam is transmitted into the first optical fiber. When the first optical switch is in the third position, the first-color light beam is transmitted into the third optical fiber, the second-color light beam is transmitted into the first optical fiber, and the third-color light beam is transmitted into the second optical fiber. The third optical fiber includes an optical fiber communicating with the third display module.

[0042] In conjunction with the second aspect, in some implementations of the second aspect, the light-emitting module includes a first light-emitting module, a second light-emitting module, and a third light-emitting module. The first light-emitting module is used to emit a light beam of a first color, the second light-emitting module is used to emit a light beam of a second color, and the third light-emitting module is used to emit a light beam of a third color. The first indication information is further used to instruct the second optical switch module to transmit the light beam of the second color into the first optical fiber or the second optical fiber; and / or the first indication information is further used to instruct the third optical switch module to transmit the light beam of the third color into the first optical fiber or the second optical fiber.

[0043] In conjunction with the second aspect, in some implementations of the second aspect, the first indication information is further used to instruct the first driving module to drive the first optical switch to switch between a first position, a second position, and a third position. When the first optical switch is in the third position, a beam of light of the first color is transmitted into the third optical fiber. The third optical fiber includes an optical fiber connected to the third display module.

[0044] In conjunction with the second aspect, in some implementations of the second aspect, the first indication information is also used to indicate that the first driving module drives the first optical switch to a first position, a second position, or a third position.

[0045] In conjunction with the second aspect, in some implementations of the second aspect, the first indication information is also used to instruct the first driving module to drive the first optical switch to switch between the first position and the second position at a first frequency.

[0046] In conjunction with the second aspect, in some implementations of the second aspect, the first indication information is also used to instruct the first driving module to drive the first optical switch to switch between the first position, the second position, and the third position at a second frequency.

[0047] In conjunction with the second aspect, in some implementations of the second aspect, the method includes acquiring the operating information of the display module and determining first instruction information based on the operating information. The operating information includes at least one of the following: image information to be displayed by the first, second, or third display module; operating mode information of the first, second, or third display module; and operating time information of the first, second, or third display module.

[0048] In conjunction with the second aspect, in some implementations of the second aspect, the optical switch includes a grating mirror structure or a mirror structure.

[0049] In conjunction with the second aspect, in some implementations of the second aspect, the light source module further includes a lens module. The lens module is used to receive the first light beam and transmit the first light beam to the first optical switch.

[0050] In conjunction with the second aspect, in some implementations of the second aspect, the light source module further includes a lens module. The lens module is used to receive a beam of light of the first color and couple the beam of light of the first color into a first optical fiber, or couple the beam of light of the first color into a second optical fiber.

[0051] Thirdly, embodiments of this application provide a projection module. The projection module includes an image generation unit, a first display module, a second display module, and a light source module provided in any of the first aspects and implementations thereof. The image generation unit outputs image information to be displayed by the first and second display modules, and the light source module transmits a beam of light superimposed with the image information to the first and second display modules.

[0052] It should be noted that the image generation unit may include one or more, each corresponding to the first display module, the second display module, or the third display module; or one image generation unit may correspond to one or more display modules; this application does not impose any special limitation on the correspondence between the image generation unit and the display module.

[0053] Fourthly, embodiments of this application provide a vehicle display system, including a control system and a light source module provided in the first aspect and any implementation thereof. The control system is used to acquire operating information of a first display module and a second display module, and to control the color of the light beam transmitted from the light source module to the first and second display modules according to the operating information.

[0054] It is understood that a control system can be a control device, controller, control module, control apparatus, etc. In some feasible implementations, the control system can be a central control system, and also has other control functions, including but not limited to acquiring the operating information of the display module and controlling the position of one or more optical switches based on the operating information.

[0055] Fifthly, embodiments of this application provide a means of transportation, including a vehicle body and a light source module provided in the first aspect and any implementation thereof, wherein the light source module is mounted on the vehicle body.

[0056] A sixth aspect provides a control device comprising: at least one processor for executing a computer program or instructions to perform the method described in any possible implementation of the second aspect. Optionally, the device further comprises a memory for storing the computer program or instructions. Optionally, the device further comprises a communication interface through which the processor reads the computer program or instructions.

[0057] In one implementation, the device is a control module.

[0058] In another implementation, the device is a chip, chip system, or circuit for controlling the light source module.

[0059] In a seventh aspect, a processor is provided for executing any possible implementation of the methods described in the second and second aspects above.

[0060] Unless otherwise specified, or unless it contradicts its actual function or internal logic in the relevant description, the sending and receiving / receiving operations involved in the processor can be understood as processor output and receiving, input, etc., and this application does not limit them in this regard.

[0061] Optionally, the device further includes: a memory for storing a program; correspondingly, at least one processor for executing the computer program or instructions in the memory.

[0062] Optionally, the device also includes a communication interface. The communication interface is coupled to the processor and can be used to input information to the processor or output information from the processor.

[0063] Eighthly, a computer-readable storage medium is provided that stores program code for execution by a device, the program code including methods for performing any possible implementation of the second aspect and the second aspect described above.

[0064] Ninth aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to perform the methods in any possible implementation of the second aspect and the second aspect described above.

[0065] In a tenth aspect, a chip is provided, the chip including a processor and a communication interface, the processor reading instructions from a memory through the communication interface and executing the methods in any possible implementation of the second aspect and the second aspect described above.

[0066] Optionally, as one implementation, the chip also includes a memory storing computer programs or instructions, and a processor for executing the computer programs or instructions in the memory. When the computer programs or instructions are executed, the processor is used to perform the methods in any of the possible implementations of the second aspect and the second aspect described above.

[0067] The beneficial effects of the second to tenth aspects mentioned above can be found in the description of the beneficial effects in the first aspect, and will not be repeated here. Attached Figure Description

[0068] Figure 1 shows a schematic diagram of a light source remoteization architecture.

[0069] Figure 2 shows a control schematic diagram of a single-chip projection display technology.

[0070] Figure 3 shows a schematic diagram of the structure of a light source module provided in an embodiment of this application.

[0071] Figure 4 shows a schematic diagram of the structure of a light source module in a light source pool provided in an embodiment of this application.

[0072] Figure 5 shows a schematic diagram of the timing of light emission from a light source module according to an embodiment of this application.

[0073] Figure 6 shows another structural schematic diagram of a light source module in a light source pool provided in an embodiment of this application.

[0074] Figure 7 shows a schematic diagram of another timing of light emission from a light source module provided in an embodiment of this application.

[0075] Figure 8 shows a schematic diagram of the structure of a light source module in another light source pool provided in an embodiment of this application.

[0076] Figure 9 shows another structural schematic diagram of a light source module in a light source pool provided in an embodiment of this application.

[0077] Figure 10 is a functional block diagram of a vehicle provided in an embodiment of this application.

[0078] Figure 11 shows a schematic diagram of the structure of a control device provided in an embodiment of this application.

[0079] Figure 12 shows a schematic diagram of another control device provided in an embodiment of this application.

[0080] Figure 13 shows a schematic diagram of another light source module provided in an embodiment of this application. Detailed Implementation

[0081] The technical solutions in this application will now be described with reference to the accompanying drawings.

[0082] The following description is provided to facilitate understanding of the embodiments of this application.

[0083] First, the terms "first," "second," and various numerical designations used in the textual descriptions or drawings of the embodiments of this application shown below are for descriptive convenience only and are not intended to limit the scope of the embodiments of this application. For example, the first display module and the second display module are different display modules, etc.

[0084] Second, the term "comprising" and any variations thereof in the embodiments of this application shown below are intended to cover non-exclusive inclusion, for example, a system, product or device that includes a series of units is not necessarily limited to those units that are explicitly listed, but may include other units that are not explicitly listed or that are inherent to such products or devices.

[0085] Third, in the embodiments of this application, the words "exemplarily" or "for example" are used to indicate examples, illustrations, or descriptions. Embodiments or designs described as "exemplarily" or "for example" should not be construed as being more preferred or advantageous than other embodiments or designs. The use of words such as "exemplarily" or "for example" is intended to present the relevant concepts in a specific manner to facilitate understanding.

[0086] Fourth, in the embodiments of this application, image light refers to light carrying an image (or image information) used to generate an image, and can also be called imaging light, etc.

[0087] Fifth, in the accompanying drawings of this application, the thickness, size, and shape of the various optical elements have been slightly exaggerated for ease of illustration. Specifically, the shapes of the optical elements shown in the drawings are illustrated by way of example, and the drawings are for illustrative purposes only and are not drawn strictly to scale.

[0088] Sixth, unless otherwise specified, all terms used in this application (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0089] It is understood that the embodiments described in this application are only some of the embodiments of this application, and not all of the embodiments. Those skilled in the art will recognize that, with the development of technology and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0090] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0091] In recent years, with the increasing demand for efficient human-vehicle information interaction, in-vehicle display technology has been continuously upgraded to enhance the driving experience. Various display technologies have emerged on the market, such as traditional screen displays, projection displays, and transparent displays. These new display applications have improved the in-vehicle display experience for consumers and made the cabin more premium and technologically advanced.

[0092] In in-vehicle displays, laser projection systems are gaining increasing attention and acceptance due to their advantages such as high brightness and large image size. To further reduce the size of laser projection equipment, solve heat dissipation issues, and simplify vehicle integration, the technology of extending the light source distance has become a research hotspot.

[0093] The light source distance solution places the laser in a location inside the vehicle that is suitable for heat dissipation or where space requirements are not high, forming a light source pool.

[0094] Figure 1 shows a schematic diagram of a light source remoteization architecture.

[0095] Light sources for different application scenarios are integrated into a single light source pool, and the laser light source required for each application scenario and the display module of the scenario are connected via optical fiber.

[0096] As an example, not a limitation, application scenario 1 is an in-vehicle projection scenario, where users in the cockpit use projectors or other devices to project onto a projection screen as needed. Laser 1, as the light source, transmits its emitted beam separately to application scenario 1 via optical fiber. Application scenario 2 is a head-up display (HUD) scenario, where the HUD device projects vehicle status information, external object indications, and navigation information through the windshield into the driver's field of vision. Laser 2, as the light source, transmits its emitted beam separately to application scenario 2 via optical fiber. Laser 1 and Laser 2 are integrated within a light source pool and are connected to the corresponding optomechanical equipment in the application scenario via optical fiber.

[0097] By using a distanced light source design and integrating the light source into a light source pool, the module size of the picture generation unit (PGU) can be significantly reduced. Furthermore, concentrating the light source within the light source pool facilitates better heat dissipation control of the laser.

[0098] It should be understood that each individual projection display system requires a separate light source. This technology is also known as monolithic projection optics, meaning that a projection display system uses a single light source chip.

[0099] It should be understood that this application only illustrates two application scenarios, and this application does not make any special limitations on the actual number of application scenarios or the specific application scenarios.

[0100] Figure 2 shows a control schematic diagram of a single-chip projection display technology.

[0101] The single-chip projection display system employs time-division multiplexing display technology, which sequentially illuminates different lasers at different times and combines this with the persistence of vision effect of the human eye to achieve the display of color images. The lasers corresponding to each application scenario include the three primary colors of light: red (R), green (G), and blue (B).

[0102] As an example and not a limitation, the control chip controls the laser to sequentially emit red (R), green (G), and blue (B) beams in extremely short time intervals. The three primary colors are mixed by the persistence of vision of the human eye to form a complete color image.

[0103] In one specific implementation, laser 1 and laser 2 each integrate RGB three-color lasers, and each laser can independently emit red, green or blue beams at different times.

[0104] In another specific implementation, laser 1 and laser 2 are each composed of three independent laser modules, which are used to emit red, green and blue beams respectively.

[0105] In summary, this approach combines a remote light source with a monolithic projection display system, employing time-division multiplexing for image display. Utilizing the persistence of vision, the system ensures that at any given moment, only one color of laser beam is emitted from each scene's laser, while other colors remain dormant. Furthermore, adding additional application scenarios necessitates increasing laser costs and reducing light source utilization efficiency. Integrating more lasers also increases the complexity of the light source pool and places higher demands on the heat dissipation module.

[0106] Based on this, the technical solution disclosed in this application, under the architecture of a remote light source pool, adds an optical switch to switch the light source path, allowing a single laser light source to meet the needs of multiple application scenarios. When adding new application scenarios, there is no need to add additional laser light sources, thereby reducing laser costs while retaining advantages in size and heat dissipation. The technical solution disclosed in this application reduces the number of lasers required for multiple application scenarios, reduces the complexity of the integrated design of the light source pool, and further reduces the cost of the light source module. Furthermore, the technical solution disclosed in this application further improves the utilization rate of the light source.

[0107] It should be noted that this application refers to one or more lasers capable of emitting red, green, and blue beams as a laser light source or a set of laser light sources; a set of laser light sources can meet the display needs of multiple scenarios.

[0108] Figure 3 shows a schematic diagram of the structure of a light source module provided in an embodiment of this application.

[0109] The light source module includes a light-emitting module and a first optical switch module. The light source module emits an image beam, which is transmitted to a display module for image display. Specifically, the light-emitting module emits a first beam, which may include one or more of red, green, and blue light beams. The first drive module in the first optical switch module controls the first optical switch to switch between a first position and a second position to control the propagation direction of the emitted beam, transmitting the emitted beam to optical fibers connected to different display modules.

[0110] In one specific implementation, the light source module also includes a lens module to reduce light loss during beam transmission and further improve the overall light output efficiency of the light source module.

[0111] Figure 13 shows a schematic diagram of another light source module provided in an embodiment of this application.

[0112] In one specific implementation, the light source module further includes a lens module located between the first optical switch module and the optical fiber connected to the display module, as shown in the light source module structure in Figure 13(a). The lens module is used to couple the light beam emitted from the first optical switch to the optical fiber corresponding to the display module.

[0113] In one specific implementation, the first driving module controls the rotation of a first optical switch, thereby switching the first optical switch between a first position and a second position. The first optical switch is used to change the exit direction of the incident light beam. When the first optical switch is in the first position, it transmits the light beam emitted from the light-emitting module to the first optical fiber, and the lens module is used to couple the light beam into the first optical fiber for transmission to the first display module. When the first optical switch is in the second position, it transmits the light beam emitted from the light-emitting module to the second optical fiber, and the lens module is used to couple the light beam into the second optical fiber for transmission to the second display module.

[0114] It should be understood that the rotation axis of the drive module can be set at the center of the optical switch or at one end of the optical switch. This application does not make any special limitation on the position of the rotation axis of the drive module in the optical switch.

[0115] It should be understood that the first driving module can also control the displacement of the first optical switch, causing the first optical switch to switch between a first position and a second position, so that the incident light beam is transmitted to the first optical fiber or the second optical fiber. This application does not impose any special limitations on this. Similarly, other position switching driving methods should not be considered to be outside the scope of protection of this application.

[0116] It should be understood that the first optical fiber is used to transmit the received light beam to the first display module, and the first optical fiber includes one or more optical fibers connected to the first display module; the second optical fiber is used to transmit the received light beam to the second display module, and the second optical fiber includes one or more optical fibers connected to the second display module; this application does not make any special limitation on the number of optical fibers included in the first optical fiber and the second optical fiber.

[0117] It should be noted that, in addition to controlling the first optical switch to switch between the first and second positions, the first driving module can also control the first optical switch to be in either the first or second position. In other words, the first driving module can control the first optical switch to remain fixed in either the first or second position for a specific duration.

[0118] In one specific implementation, the first optical switch includes a reflector for receiving and reflecting a first light beam. When the first optical switch is in a first position, it reflects the incident first light beam toward the direction of the first optical fiber; when the first optical switch is in a second position, it reflects the incident first light beam toward the direction of the second optical fiber.

[0119] In another specific implementation, the first optical switch includes a grating reflector for receiving the incident first light beam and diffracting it to distribute it in different directions according to wavelength. When the first optical switch is in a first position, it reflects the first color of the incident first light beam to the first optical fiber; when the first optical switch is in a second position, it reflects the first color of the incident first light beam to the second optical fiber.

[0120] It should be noted that different colors of light have different wavelengths, which can also be understood as light beams of different wavelengths being light beams of different colors.

[0121] In one specific implementation, the lens module includes a collimating lens for coupling the incident light beam into the optical fiber.

[0122] It should be noted that the lens module may include one or more lenses, and this application does not specify the number of lenses in the lens module.

[0123] In another specific implementation, the lens module can also be located between the light-emitting module and the light-switching module, as shown in the light source module structure in Figure 13(b).

[0124] The light source module also includes a lens module, which is located between the light-emitting module and the first optical switch module. The lens module is used to transmit the first light beam emitted by the light-emitting module to the first optical switch.

[0125] In one specific implementation, the first driving module controls the rotation of a first optical switch, thereby switching the first optical switch between a first position and a second position. The first optical switch is used to change the exit direction of the incident light beam. When the first optical switch is in the first position, the light beam emitted from the light-emitting module is transmitted to the first optical fiber, and the light beam is directly transmitted into the first optical fiber to be transmitted to the first display module. When the first optical switch is in the second position, the light beam emitted from the light-emitting module is transmitted to the second optical fiber, and the light beam is directly transmitted into the second optical fiber to be transmitted to the second display module.

[0126] It should be noted that additional optical structures can be set between the optical switching module and the optical fiber to couple light into the optical fiber, thereby further improving the coupling efficiency of the beam. This application does not impose any special limitations on this.

[0127] It should be noted that the lens module is used to converge the incident light beam. The lens module can be positioned in the optical path between the output module and the optical switch to converge the light beam emitted from the output module to the optical switch. Alternatively, the lens module can be positioned between the optical switch and the optical fiber to converge the light beam emitted from the optical switch into the optical fiber. Lens modules can also be positioned between the output module and the optical switch, and between the optical switch and the optical fiber; this application does not impose any special limitations on this.

[0128] For the sake of simplicity, the following description uses the example of a lens module located between the optical switch and the optical fiber. The role of the lens module in the optical path between the light output module and the optical switch module can be referred to the implementation method of a lens module located between the optical switch and the optical fiber, and will not be repeated here.

[0129] In one specific implementation, the light-emitting module includes one or more laser modules for emitting red, green, and blue beams.

[0130] It should be understood that this application does not impose a special limitation on the number of laser modules and / or lasers included in the light-emitting module. One or more laser modules or lasers may be used to emit light beams of the same color, and this application does not impose a special limitation in this regard. It should be understood that the more laser modules or lasers used to emit light beams of the same color, the higher the brightness and color saturation of the image formed by the emitted light beams.

[0131] It should be understood that in some specific implementations, the laser module is also referred to as a laser or a laser chip, and this application does not make any special limitation on this.

[0132] In one specific implementation, the first light beam includes a light beam of one color. That is, the first light beam is a red beam, a green beam, or a blue beam, or it can be understood as a light beam of one color being a red beam, a green beam, or a blue beam. The light source module also includes a second light-emitting module and a third light-emitting module, which are used to emit light beams of the three colors respectively. Correspondingly, the light source module also includes a second light-switching module and a third light-switching module, each of which is used to transmit the received light beam to the first display module or the second display module.

[0133] The specific implementation method is described below with reference to Figure 4.

[0134] Figure 4 shows a schematic diagram of the structure of a light source module in a light source pool provided in an embodiment of this application.

[0135] As examples and not limitations, the implementation of this application is described using a specific implementation of a red laser as the first light-emitting module, a specific implementation of a green laser as the second light-emitting module, and a specific implementation of a blue laser as the third light-emitting module as examples.

[0136] Correspondingly, the red beam is a specific implementation of the first color beam, the green beam is a specific implementation of the second color beam, and the blue beam is a specific implementation of the third color beam.

[0137] As an example, and not a limitation, the current light source module can support the display requirements of two different display modules. The light beam emitted from the light source module is transmitted to display module 1 (not shown in the figure) via fiber optic cable 1, and the light beam emitted from the light source module is transmitted to display module 2 (not shown in the figure) via fiber optic cable 2. The three colors of lasers are controlled by three optical switch modules, each including an optical switch and a driving module. Each optical switch, under the action of the driving module, can switch between position 1 and position 2. By rapidly switching the position of each optical switch, the different colors of laser beams emitted from the lasers enter different optical fibers. Combined with the persistence of vision effect of the human eye, this achieves the display of a color image.

[0138] It should be understood that optical fiber 1 is a specific implementation of the first optical fiber in the embodiments of this application, and optical fiber 2 is a specific implementation of the second optical fiber in the embodiments of this application. This application does not make any special limitations on it.

[0139] It should be understood that display module 1 is a specific implementation of the first display module in this application, and display module 2 is a specific implementation of the second display module in the embodiments of this application. This application does not make any special limitations on it.

[0140] It should be understood that position 1 is a specific implementation of the first position of this application, and position 2 is a specific implementation of the second position of this application. This application does not make any special limitations on these two positions.

[0141] The following description uses the beam emitted by a red laser as an example.

[0142] A red laser emits a red beam, denoted as beam r. An optical switch module 1 controls the transmission direction of beam r. The optical switch module 1 includes an optical switch 1 and a driving module 1. The driving module 1 drives the optical switch 1 to switch between position 1 and position 2. When the optical switch 1 is in position 1, beam r is transmitted towards fiber 1; when the optical switch 1 is in position 2, beam r is transmitted towards fiber 2.

[0143] Specifically, when optical switch 1 is in position 1, it reflects the incident light beam r towards the direction of optical fiber 1, and this reflected beam is denoted as beam 1r; when optical switch 1 is in position 2, it reflects the incident light beam r towards the direction of optical fiber 2, and this reflected beam is denoted as beam 2r. The lens module is used to couple beam 1r into optical fiber 1 and transmit it to display module 1; the lens module is also used to couple beam 2r into optical fiber 2 and transmit it to display module 2.

[0144] It should be understood that optical switch module 1 is a specific implementation of the first optical switch module of this application, optical switch 1 is a specific implementation of the first optical switch of this application, and driving module 1 is a specific implementation of the first driving module of this application. This application does not make any special limitations on these aspects.

[0145] The green laser emits a green beam, denoted as beam g. The optical switch module 2 controls the transmission direction of beam g. The structure and working principle of the optical switch module 2 are similar to those of the optical switch module 1. The way the optical switch module 2 couples the incident beam g into optical fiber 1 and optical fiber 2 is similar to the way the optical switch module 1 couples the beam r into optical fiber 1 and optical fiber 2. For the sake of simplicity, this application will not describe it in detail here.

[0146] The blue laser emits a blue beam, denoted as beam b. The optical switch module 3 controls the transmission direction of beam b. The structure and working principle of the optical switch module 3 are similar to those of the optical switch module 1. The way the optical switch module 3 couples the incident beam b into optical fiber 1 and optical fiber 2 is similar to the way the optical switch module 1 couples the beam r into optical fiber 1 and optical fiber 2. For the sake of simplicity, this application will not elaborate further.

[0147] It should be noted that in the above implementation, optical switch module 1 is a specific implementation of the first optical switch module, optical switch module 2 is a specific implementation of the second optical switch, and optical switch module 3 is a specific implementation of the third optical switch module. It should be understood that the three optical switches can have the same structure and the same driving method; alternatively, the three optical switches can have different structures and different driving methods, and this application does not impose any special limitations on this.

[0148] It should be noted that the first optical switch module can be optical switch module 1, optical switch module 2 or optical switch module 3, and the first color beam can be a red beam, a green beam or a blue beam. The above embodiments are only describing a specific implementation method, and this application does not make any special limitations on it.

[0149] It should be noted that optical fiber 1 includes optical fibers connected to display module 1, and optical fiber 1 includes one or more optical fibers. The optical fibers 1 for incident beams 1r, 1g, and 1b can be different optical fibers, used respectively to transmit beams 1r, 1g, and 1b to display module 1. It should be understood that the relationship between optical fiber 2 and display module 2 is similar, and will not be elaborated further here.

[0150] The light source module disclosed in this application also includes a control module. The control module modulates the light-emitting module and the optical switch module in the light source module based on the acquired operating information of the first and second display modules. Specifically, the control module controls the position of the optical switch in the optical switch module based on the acquired operating information, thereby transmitting the light beam emitted by the light-emitting module to the corresponding display module. The control module is also used to control the light-emitting module to emit a first light beam.

[0151] As an example and not a limitation, the description uses the control module driving the first optical switch module as an example. Based on the module's operating information, the control module sends a first instruction to the first driving module of the first optical switch module. This first instruction instructs the first driving module to switch the first optical switch between a first position and a second position, thereby controlling the transmission of the light beam emitted from the light source module to the first display module or the second display module. The control module also controls whether the light-emitting module emits a red, green, or blue light beam at a specific time.

[0152] It should be noted that the control module controls the switching of the optical switch positions in the second and third optical switch modules in a manner similar to controlling the first optical switch in the first optical switch module, and this application will not elaborate further here.

[0153] It should be noted that the control module can send first indication information to the first optical switch module, the second optical switch module, and the third optical switch module respectively to control the position switching of the three optical switches; the control module can also send different indication information to the three optical switch modules respectively to control the position switching of the three optical switches, and this application does not make any special limitation in this regard.

[0154] For ease of description, the following description will take the control of the first optical switch module, the second optical switch module, and the third optical switch module by the first indication information as an example.

[0155] It should be noted that the working information of the display module includes at least one of the following: the image information that the display module needs to display, the working mode information of the display module, and the working time information of the display module.

[0156] It should be noted that the image information that the display module needs to display includes, but is not limited to, navigation, map and other image information that needs to be displayed based on user operation; or screen, video and other image information that needs to be displayed based on user operation; or other image information that needs to be projected.

[0157] It should be noted that the display module's operating mode information includes, but is not limited to, the display module being in color projection mode, monochrome projection mode, illumination mode, constant-on mode, and breathing light mode.

[0158] It should be noted that the display module's operating time information includes, but is not limited to, the display module needing to be in a specific mode at a specific time, or the display module needing to display specific image information at a specific time. For example, when the display module is a head-up display, it can display relevant navigation information during the predicted user's commute time. Or, for example, when the display module is a vehicle headlight, it can be in illumination mode at night.

[0159] It should be understood that the first display module and the second display module are different display modules. The working information of different display modules may be the same or different, and this application does not make any special limitation in this regard.

[0160] As an example and not a limitation, the following description uses the light source module shown in Figure 4 as an example.

[0161] Figure 5 shows a schematic diagram of the timing of light emission from a light source module according to an embodiment of this application.

[0162] In one specific implementation, as shown in the figure, according to the operating information of the display modules, display module 1 needs to be illuminated with red, green, and blue light beams sequentially at times t0, t1, and t2, while display module 2 needs to be illuminated with green, blue, and red light beams sequentially at times t0, t1, and t2. Therefore, the control module, according to the timing required by the operating information, causes the red laser in the light-emitting module of the light source module to emit light at times t0 and t2, the green laser to emit light at times t0 and t1, and the blue laser to emit light at times t1 and t2. The control module also controls the optical switching module in the light source module to couple the red light beam to fiber 1 and the green light beam to fiber 2 at time t0; to couple the green light beam to fiber 1 and the blue light beam to fiber 2 at time t1; and to couple the blue light beam to fiber 1 and the red light beam to fiber 2 at time t2. Combined with the persistence of vision effect of the human eye, this allows the user to view a color image when viewing display modules 1 and 2.

[0163] As an example and not a limitation, optical switch module 1, optical switch module 2, and optical switch module 3 are optical switch modules with the same structure. Each optical switch module includes an optical switch and a driving module, which are distinguished by the numbers 1, 2, and 3 for the sake of brevity and clarity. Each optical switch can switch between position 1 and position 2 under the action of the driving module, so that the light beam emitted from the optical switch is coupled into optical fiber 1 or optical fiber 2 by the lens module.

[0164] It should be noted that positions 1 and 2 are relative to the optical switch itself. As an example and not a limitation, position 1 includes the initial position of the optical switch in the light source module; position 2 includes the position of the optical switch after rotating counterclockwise by an angle of 1 from the initial position under the action of the driving module.

[0165] Specifically, optical switch module 1 controls the transmission direction of the red beam, optical switch module 2 controls the transmission direction of the green beam, and optical switch module 3 controls the transmission direction of the blue beam. At time t0, drive module 1 sets optical switch 1 to position 1, and drive module 2 sets optical switch 2 to position 2, thereby transmitting the red beam to display module 1 through optical fiber 1 and the green beam to display module 2 through optical fiber 2. At time t1, drive module 2 sets optical switch 2 to position 1, and drive module 3 sets optical switch 3 to position 2, thereby transmitting the green beam to display module 1 through optical fiber 1 and the blue beam to display module 2 through optical fiber 2. At time t2, drive module 3 sets optical switch 3 to position 1, and drive module 1 sets optical switch 1 to position 2, thereby transmitting the blue beam to display module 1 through optical fiber 1 and the red beam to display module 2 through optical fiber 2.

[0166] It should be understood that the RGB timing of the display module's operating information indication is only described illustratively in this application. Specific implementations require the control module to determine the RGB timing based on the display module's operating information, or based on user-set or input image information and / or video stream information; this application does not impose any special limitations on this.

[0167] It should be understood that the control device can be integrated into the light source module; the control module can also be set up separately or integrated into other modules, and this application does not make any special limitations on this.

[0168] In one specific implementation, the first indication information is also used to instruct the driving module to drive the optical switch to switch between a first position and a second position at a specific frequency. For example, the first indication information instructs the driving module 1 to position 1 at time t0 and position 2 at time t2, controlling the optical switch 1 to switch between positions 1 and 2 at this frequency. The first indication information is also used to instruct the light-emitting module not to emit a red beam at time t1. Through similar control logic, the first indication information also controls optical switches 2 and 3 to switch between positions 1 and 2 at a specific frequency, and controls whether the light-emitting module emits a green or blue beam at a specific time. Based on this, display modules 1 and 2 acquire red, green, and blue beams at fixed frequencies. Display modules 1 and 2 modulate the image light based on the three primary colors of the acquired light to achieve color display.

[0169] In one specific implementation, the first indication information is also used to instruct the drive module to fix the optical switch in a first position or a second position.

[0170] It should be noted that the first indication information indicates that the optical switch is fixed in the first position or the second position, including indicating that the optical switch is fixed in the first position or the second position at a specific time. The first indication information can also be used to indicate the duration for which the optical switch is fixed in the first position or the second position. The first indication information can also indicate that the optical switch is fixed in the first position or the second position in response to specific conditions.

[0171] As an example and not a limitation, the description uses the first indication information indicating the first optical switch module as an example. For instance, when the image to be displayed by the first display module is a constantly lit red image, the first indication information instructs the first optical switch to be fixed in a first position at the current moment, so that the red beam emitted by the light-emitting module is transmitted to the first display module. The first indication information may also instruct the first optical switch to remain in the first position for a specific duration, and then switch to a second position.

[0172] It should be understood that the light beam received by the first display module can be a single-color laser beam. When the first display module has other color display requirements, the position of the light switch can be controlled by the drive module to transmit other monochromatic laser beams to the first display module; alternatively, by adding other devices such as a phosphor wheel at the first display module, the wavelength of the received monochromatic laser beam can be modulated to obtain other wavelengths corresponding to other colors of light beams.

[0173] In summary, the technical solution disclosed in this application uses three independent optical switch modules, each corresponding to one of three independent monochromatic lasers. This allows the beams emitted from the three monochromatic lasers to be transmitted to two different display modules, thereby meeting the concurrent color display requirements of the two display modules. Using a single light source to meet the concurrent display needs of two different display scenarios not only reduces the cost of the light source but also lowers the complexity of the overall light source module design, further improving the utilization rate of the light source.

[0174] Furthermore, the light source module disclosed in this application has good scalability. If it is necessary to expand the display module, there is no need to increase the number of light sources. Optical fibers can be laid in the light source pool to connect the expanded display modules, and the position of the optical switches can be controlled to allow the light source pool to meet the concurrent display needs of multiple scenarios.

[0175] As an example and not a limitation, the following description, with reference to the accompanying drawings, illustrates a light source module that supports the display requirements of three display modules, as well as the switching control of the light switch.

[0176] Figure 6 shows another structural schematic diagram of a light source module in a light source pool provided in an embodiment of this application.

[0177] Based on the above technical solution, the light source module provided in this application can be further expanded to transmit the incident light beam to three display modules. Each light switch can be switched between three positions to transmit the light beam to three different display modules.

[0178] In one specific implementation, a first driving module drives a first optical switch to switch between a first position, a second position, and a third position. When the first optical switch is in the first position, a beam of light of the first color is coupled into a first optical fiber through a lens module. When the first optical switch is in the second position, the beam of light of the first color is coupled into a second optical fiber through a lens module. When the first optical switch is in the third position, the beam of light of the first color is coupled into a third optical fiber through a lens module. The third optical fiber includes an optical fiber connected to a third display module.

[0179] It should be noted that the control of the second color beam by the second optical switch module and the control of the third color beam by the third optical switch module are similar to the control of the first color beam by the first optical switch module. For the sake of brevity, this application will not elaborate further here.

[0180] In one specific implementation, the first position may include the initial position of the optical switch; the second position may include the position of the optical switch after rotating counterclockwise by a specific angle from the first position; and the third position may include the position of the optical switch after rotating clockwise by a specific angle from the first position.

[0181] The following describes a specific implementation method for a light source module to support the concurrent display of three display modules, using the first light switch module as light switch module 1, the second light switch module as light switch module 2, and the third light switch module as light switch module 3.

[0182] It should be noted that, in one specific implementation, the first color beam is a red beam, the second color beam is a green beam, and the third color beam is a blue beam; the first optical fiber is optical fiber 1, the second optical fiber is optical fiber 2, and the third optical fiber is optical fiber 3; the first position is position 1, the second position is position 2, and the third position is position 3; the first display module is display module 1, the second display module is display module 2, and the third display module is display module 3. It should be understood that this application describes an embodiment as a specific implementation and does not constitute any limitation on the scope of protection of this application.

[0183] The following description uses the beam emitted by a red laser as an example.

[0184] A red laser emits a red beam, denoted as beam r. An optical switch module 1 controls the transmission direction of beam r. The optical switch module 1 includes an optical switch 1 and a driving module 1. The driving module 1 drives the optical switch 1 to switch between positions 1, 2, and 3. When the optical switch 1 is in position 1, beam r is transmitted towards fiber 1; when the optical switch 1 is in position 2, beam r is transmitted towards fiber 2; and when the optical switch 1 is in position 3, beam r is transmitted towards fiber 3.

[0185] Specifically, when optical switch 1 is in position 1, it reflects the incident light beam r towards the direction of optical fiber 1, and this reflected beam is denoted as beam 1r; when optical switch 1 is in position 2, it reflects the incident light beam r towards the direction of optical fiber 2, and this reflected beam is denoted as beam 2r; when optical switch 1 is in position 3, it reflects the incident light beam r towards the direction of optical fiber 3, and this reflected beam is denoted as beam 3r. The lens module is used to couple beam 1r into optical fiber 1 and transmit it to display module 1 (not shown in the figure); the lens module is also used to couple beam 2r into optical fiber 2 and transmit it to display module 2; the lens module is also used to couple beam 3r into optical fiber 3 and transmit it to display module 3.

[0186] The green laser emits a green beam, denoted as beam g. Optical switch module 2 controls the transmission direction of beam g. The structure and working principle of optical switch module 2 are similar to those of optical switch module 1. The way optical switch module 2 couples the incident beam g into optical fibers 1, 2, and 3 is similar to the way optical switch module 1 couples the beam r into optical fibers 1, 2, and 3. For simplicity, this application will not elaborate further.

[0187] The blue laser emits a blue beam, denoted as beam b. The optical switch module 3 controls the transmission direction of beam b. The structure and working principle of the optical switch module 3 are similar to those of the optical switch module 1. The way the optical switch module 3 couples the incident beam b into optical fibers 1, 2, and 3 is similar to the way the optical switch module 1 couples the beam r into optical fibers 1, 2, and 3. For the sake of simplicity, this application will not elaborate further.

[0188] The light source module disclosed in this application also includes a control module. The control module modulates the light-emitting module and the optical switch module in the light source module based on the obtained operating information of the first display module, the second display module, and the third display module.

[0189] As an example and not a limitation, the description uses the control module driving the first optical switch module as an example. Based on the module's operating information, the control module sends a first instruction to the first driving module of the first optical switch module. This first instruction instructs the first driving module to switch the first optical switch between a first position, a second position, and a third position, thereby controlling the transmission of the light beam emitted from the light source module to the first display module, the second display module, or the third display module. The control module also controls whether the light-emitting module emits a red, green, or blue light beam at a specific time.

[0190] It should be noted that the control module controls the switching of the optical switch positions in the second and third optical switch modules in a manner similar to controlling the first optical switch in the first optical switch module, and this application will not elaborate further here.

[0191] It should be noted that the working information of the display module is similar to the function and content in the above embodiments, and for the sake of brevity, it will not be described again here.

[0192] It should be understood that the first display module, the second display module, and the third display module are different display modules. The working information of the different display modules may be the same or different, and this application does not make any special limitation in this regard.

[0193] The following description uses Figure 7 as an example to illustrate the control of the light source module shown in Figure 6.

[0194] Figure 7 shows a schematic diagram of another timing of light emission from a light source module provided in an embodiment of this application.

[0195] In one specific implementation, as shown in the figure, based on the operating information of the display modules, display module 1 needs to be illuminated with red, green, and blue light beams sequentially at times t0, t1, and t2; display module 2 needs to be illuminated with green, blue, and red light beams sequentially at times t0, t1, and t2; and display module 3 needs to be illuminated with blue, red, and green light beams sequentially at times t0, t1, and t2. The control module controls the optical switch module in the light source module. At time t0, the red light beam is coupled to fiber 1, the green light beam to fiber 2, and the blue light beam to fiber 3; at time t1, the green light beam is coupled to fiber 1, the blue light beam to fiber 2, and the red light beam to fiber 3; and at time t2, the blue light beam is coupled to fiber 1, the red light beam to fiber 2, and the green light beam to fiber 3. Combined with the persistence of vision effect of the human eye, this allows the user to view a color image when viewing display modules 1, 2, and 3.

[0196] Specifically, optical switch module 1 controls the transmission direction of the red beam, optical switch module 2 controls the transmission direction of the green beam, and optical switch module 3 controls the transmission direction of the blue beam. The control of the position of the optical switches by the drive module within the optical switch modules is similar to the aforementioned implementation method, and for the sake of simplicity, it will not be described in detail here.

[0197] In one specific implementation, the first indication information is also used to instruct the driving module to drive the optical switch to switch between a first position, a second position, and a third position at a specific frequency. For example, the first indication information instructs the driving module 1 to position 1 at time t0, position 3 at time t1, and position 2 at time t2. The optical switch 1 is controlled to switch between positions 1, 2, and 3 at this frequency. Through similar control logic, the first indication information also controls optical switches 2 and 3 to switch between positions 1, 2, and 3 at a specific frequency. Based on this, display modules 1, 2, and 3 acquire red, green, and blue light beams at fixed frequencies. Display modules 1, 2, and 3 modulate the image light based on the acquired primary colors of the light to achieve color display.

[0198] In one specific implementation, the first indication information is also used to instruct the drive module to fix the optical switch in a first position, a second position, or a third position. The specific control logic and implementation are similar to those in the above embodiments, and for the sake of brevity, will not be described in detail here.

[0199] In summary, the technical solution disclosed in this application uses three independent optical switch modules, each corresponding to one of the three independent monochromatic lasers. This allows the beams emitted from the three monochromatic lasers to be transmitted to three different display modules, thereby meeting the concurrent color display requirements of the three display modules. Using a single light source to meet the concurrent display needs of three different display scenarios not only further reduces the cost of the light source but also reduces the complexity of the overall light source module design, further improving the utilization rate of the light source.

[0200] In another specific implementation, the first beam comprises beams of at least two colors. That is, the first beam is a mixture of at least two colors chosen from red, green, or blue beams.

[0201] In one specific implementation, the optical switch module includes a mirror structure, and a first driving module is used to control the first optical switch to be in a first position, a second position, or a third position. The first optical switch is used to transmit a first light beam to a corresponding display module. It should be noted that the display module can further modulate the received mixed light beam; this application does not impose any special limitations on this.

[0202] In one specific implementation, the light source module also includes a second light-emitting module and a third light-emitting module, with the three light-emitting modules respectively used to emit light beams of three different colors.

[0203] In another specific implementation, the optical switch in the optical switch module includes a grating structure. By diffracting the mixed light, different wavelengths of the mixed light are transmitted to different angles, thereby realizing time-division multiplexing of different wavelengths of light.

[0204] As an example and not a limitation, grating structures include, but are not limited to, holographic gratings or surface relief gratings.

[0205] The specific implementation method is described below with reference to Figure 8.

[0206] Figure 8 shows a schematic diagram of the structure of a light source module in another light source pool provided in an embodiment of this application.

[0207] As an example rather than a limitation, the optical switch module 4 is described as a specific implementation of the first optical switch module.

[0208] In one specific implementation, the light-emitting module includes a red laser, a green laser, and a blue laser. Each laser is equipped with a lens group to focus the monochromatic beam emitted by the laser into the optical switch module 4.

[0209] At any given time, at least two laser beams are emitted. When optical switch 4 is in position 1, it diffracts the received mixed beam 1, causing dispersion and transmitting the beams of different colors to optical fibers 1 and 2 respectively. When optical switch 4 is in position 2, it diffracts the received mixed beam 2, transmitting the separated beams of different colors to optical fibers 1 and 2 respectively. When optical switch 4 is in position 3, it diffracts the received mixed beam 3, transmitting the separated beams of different colors to optical fibers 1 and 2 respectively.

[0210] In one specific implementation, mixed beam 1 includes a red beam and a green beam, mixed beam 2 includes a green beam and a blue beam, and mixed beam 3 includes a red beam and a blue beam. When the driving module 4 drives the optical switch 4 to position 1, the optical switch 4 diffracts the mixed beam 1, separating the red beam and the green beam, denoted as beam r and beam g, respectively. The diffracted beams r and g are coupled to optical fibers 1 and 2, respectively, through lens modules. Similarly, when the optical switch is in positions 2 and 3, the received mixed beams 2 and 3 are diffracted using a similar principle, causing beams of different wavelengths to propagate in different directions. The specific method principle is similar to the principle of diffracting the mixed beam 1 when the optical switch 4 is in position 1, and for simplicity, it will not be described in detail here.

[0211] It should be noted that the control module is also used to control the color of the beam included in the mixed light emitted by the light-emitting module at a specific time. The control module is also used to send a first indication message to the optical switch module, which instructs the drive module 4 to drive the optical switch 4 to switch between position 1, position 2, and position 3.

[0212] It should be understood that the timing of the control module controlling the switching of the optical switch is similar to the method shown in Figure 5, and for the sake of simplicity, it will not be described again here.

[0213] It should be understood that hybrid beam 1, hybrid beam 2, and hybrid beam 3 are all specific implementations of the first beam, and this application does not impose any special limitations on them.

[0214] In summary, the technical solution disclosed in this application utilizes an optical switch with a grating structure. A single optical switch module disperses the incident mixed light beam, allowing different colored beams to be transmitted to optical fibers 1 and 2 respectively, thereby supporting the concurrent display requirements of display module 1 and display module 2. This embodiment reduces the number of optical switches and lowers the complexity of the control module in controlling the switching of the optical switches.

[0215] Furthermore, the light source module disclosed in this application has good scalability. If it is necessary to expand the display module, there is no need to increase the number of light sources. Optical fibers can be laid in the light source pool to connect the expanded display modules, and the position of the optical switches can be controlled to allow the light source pool to meet the concurrent display needs of multiple scenarios.

[0216] In another specific implementation, the first beam comprises beams of three colors. That is, the first beam is a mixture of red, green, and blue light.

[0217] As an example and not a limitation, the following description, with reference to the accompanying drawings, illustrates a light source module that supports the display requirements of three display modules.

[0218] Figure 9 shows another structural schematic diagram of a light source module in a light source pool provided in an embodiment of this application.

[0219] As an example rather than a limitation, the optical switch module 5 is described as a specific implementation of the first optical switch module.

[0220] In one specific implementation, the light-emitting module includes a red laser, a green laser, and a blue laser. Each laser is equipped with a lens group to focus the monochromatic beam emitted by the laser into the optical switch module 5.

[0221] It should be noted that the mixed beam 4 is a specific implementation of the first beam, and the mixed beam 4 includes a red beam, a green beam, and a blue beam.

[0222] When the optical switch 5 is in position 1, it is used to diffract the received mixed beam 4, causing the mixed beam 4 to disperse and transmit beams of different colors to optical fibers 1, 2 and 3 respectively.

[0223] Specifically, when optical switch 5 is in position 1, the red light beam (beam r) is coupled into fiber 1 through the lens module, the green light beam (beam g) is coupled into fiber 2 through the lens module, and the blue light beam (beam b) is coupled into fiber 3 through the lens module. When optical switch 5 is in position 2, beam r is coupled into fiber 3 through the lens module, beam g is coupled into fiber 1 through the lens module, and beam b is coupled into fiber 2 through the lens module. When optical switch 5 is in position 3, beam r is coupled into fiber 2 through the lens module, beam g is coupled into fiber 3 through the lens module, and beam b is coupled into fiber 1 through the lens module.

[0224] It should be understood that in the above implementation, the red beam is a specific implementation of the first color beam. In other implementations, the first color beam can also be a green beam or a blue beam, and this application does not make any special limitation in this regard.

[0225] It should be noted that the control module is also used to send a first indication message to the optical switch module. The first indication message is used to instruct the drive module 5 to drive the optical switch 5 to switch between position 1, position 2 and position 3.

[0226] It should be understood that the timing of the control module controlling the switching of the optical switch is similar to the method shown in Figure 7, and for the sake of simplicity, it will not be described again here.

[0227] In summary, the technical solution disclosed in this application utilizes an optical switch with a grating structure. A single optical switch module disperses the incident mixed light beam, allowing different colored beams to be transmitted to optical fibers 1, 2, and 3 respectively, thereby supporting the concurrent display requirements of display modules 1, 2, and 3. This embodiment reduces the number of optical switches and lowers the complexity of the control module in controlling the switching of the optical switches.

[0228] In one specific implementation, based on the above implementation, the first instruction information sent by the control module to the optical switch module is also used to instruct the optical switch to switch between the first position and the second position at a first frequency.

[0229] In another specific implementation, based on the above implementation, the first instruction information sent by the control module to the optical switch module is also used to instruct the optical switch to switch between the first position, the second position and the third position at a second frequency.

[0230] It should be understood that in the solution of this application, the first display module, the second display module, or the third display module may include, but is not limited to, display modules and lighting scenarios in various projection display scenarios where the light source module disclosed in this application can be applied.

[0231] It should be noted that "projection display scenario" is merely an exemplary name. In the home projection field, projection display scenario includes devices such as home projectors. The light source module provided in this application can be applied to home projection display systems, meeting the needs of multiple display scenarios in a home with a single light source module, eliminating the need to deploy separate projection light sources for each display scenario. In the automotive field, projection scenario can also be referred to as imaging scenario, entertainment scenario, high-definition demand scenario, etc., including but not limited to in-vehicle entertainment system display devices, multimedia projection systems, head-up display systems for the driver's seat, starry sky display systems on the vehicle roof, vehicle side window display systems, headlight module projection systems, passenger seat display systems, etc.

[0232] The following describes the vehicles in which the light source module disclosed in this application can be applied.

[0233] Figure 10 is a functional block diagram of a vehicle provided in an embodiment of this application.

[0234] Specifically, vehicle 100 may include a sensing system 120, a display device 130, a light source pool 140, and a computing platform 150. The light source pool 140 is connected to the display device 130 and provides light to the display device 130, enabling it to display image light. The sensing system 120 may include one or more sensors for sensing information about the environment surrounding vehicle 100. For example, the sensing system 120 may include a positioning system, such as a Global Positioning System (GPS), a BeiDou Navigation Satellite System, or another positioning system. Alternatively, the sensing system 120 may include one or more of the following: an inertial measurement unit (IMU), lidar, millimeter-wave radar, ultrasonic radar, and a camera device.

[0235] Some or all of the functions of vehicle 100 can be controlled by computing platform 150. Computing platform 150 may include one or more processors, such as processor 151, processors 152 to 15n (n being a positive integer), where a processor is a circuit with signal processing capabilities. In one implementation, the processor can be a circuit with instruction read and execute capabilities, such as a central processing unit (CPU), a microprocessor, a graphics processing unit (GPU) (which can be understood as a type of microprocessor), or a digital signal processor (DSP). In another implementation, the processor can implement certain functions through the logical relationships of hardware circuits, where these logical relationships are fixed or reconfigurable. For example, the processor may be a hardware circuit implemented using an application-specific integrated circuit (ASIC) or a programmable logic device (PLD), such as a field-programmable gate array (FPGA). In reconfigurable hardware circuits, the process of the processor loading a configuration document and configuring the hardware circuit can be understood as the processor loading instructions to implement some or all of the functions of the aforementioned units. In addition, it can also be hardware circuits designed for artificial intelligence, which can be understood as a type of ASIC, such as a neural network processing unit (NPU), tensor processing unit (TPU), deep learning processing unit (DPU), etc. Furthermore, the computing platform 150 may also include a memory for storing instructions. Some or all of the processors 151 to 15n can call and execute the instructions in the memory to achieve the corresponding functions.

[0236] It is understood that the light source module provided in this application embodiment can be applied to the vehicle shown in the figure. Specifically, the light source module provided in this application embodiment may be one example corresponding to light source pool 140 in the figure, or may be included in light source pool 140, meaning that all or part of the light source pool 140 shown in the figure possesses the structure and function of the light source module in this application embodiment. Furthermore, the light source module provided in this application can be applied to both left-hand drive and right-hand drive vehicles. This application embodiment does not limit the type of vehicle.

[0237] It is understood that the display module 1, display module 2 and display module 3 described in the embodiments of this application can be the display device 130 shown in the figure, or can be included in the display device 130, that is, all or part of the display device 130 shown in the figure has the structure and function of the display module in the embodiments of this application.

[0238] Figure 11 shows a schematic diagram of the structure of a control device provided in an embodiment of this application.

[0239] The control device 1000 shown in the figure may include a transceiver unit 1010 and a processing unit 1020. The transceiver unit 1010 can be used to implement corresponding communication functions. The transceiver unit 1010 may also be referred to as a communication interface or communication unit. The processing unit 1020 can be used to determine and generate information. Optionally, the transceiver unit 1010 may include a receiving unit and a sending unit, whereby the receiving unit is used to implement the function of receiving data and the sending unit is used to implement the function of sending data.

[0240] Optionally, the control device 1000 may further include a storage unit, which can be used to store instructions and / or data, and the processing unit 1020 can read the instructions and / or data in the storage unit to enable the device to implement the aforementioned embodiments.

[0241] The control device 1000 may be a control module in the above embodiments, or it may be a chip used to implement the functions of the control module in the above method embodiments. It should be understood that the control device 1000 may correspond to the control module in the implementation described in Figures 4 to 9 of this application.

[0242] In one possible design, the processing unit 1020 is used to determine the output of first indication information based on the operating information of the display module. The first indication information is used to instruct the optical switch to switch between a first position and a second position. The first indication information is also used to instruct the optical switch to switch between a first position, a second position, and a third position. The first indication information is further used to instruct the optical switch to be in the first, second, or third position. The first indication information is also used to instruct the first optical switch to switch between the first and second positions at a first frequency. The first indication information is also used to instruct the first optical switch to switch between the first, second, and third positions at a second frequency. The transceiver unit 1010 can be used to acquire the operating information of the display module. The transceiver unit 1010 can also be used to transmit the first indication information.

[0243] It should be understood that the control device 1000 here is embodied in the form of a functional unit. The term "unit" here may refer to application-specific integrated circuits (ASICs), electronic circuits, processors (e.g., shared processors, proprietary processors, or group processors) and memory for executing one or more software or firmware programs, combined logic circuits, and / or other suitable components that support the described functions.

[0244] In addition, the transceiver unit 1010 may also be a transceiver circuit (for example, it may include a receiving circuit and a transmitting circuit), and the processing unit 1020 may be a processing circuit.

[0245] Figure 12 shows a schematic diagram of another control device provided in an embodiment of this application.

[0246] The control device 2000 shown in the figure may include a processor 2010.

[0247] Optionally, the device 2000 further includes a transceiver 2020 for receiving and / or transmitting signals. For example, the processor 2010 controls the transceiver 2020 to receive and / or transmit signals. Optionally, the transceiver 2020 may include a receiver for receiving signals and a transmitter for transmitting signals.

[0248] The processor 2010 may be coupled to the memory 2030, which is used to store computer programs or instructions and / or data. The processor 2010 is used to execute the computer programs or instructions stored in the memory 2030, or to read the data stored in the memory 2030, in order to perform the embodiments described above.

[0249] Optionally, there may be one or more processors 2010.

[0250] Optionally, the memory 2030 may be one or more.

[0251] Alternatively, the memory 2030 can be integrated with the processor 2010, or it can be set up separately.

[0252] As an example, processor 2010 may have the functions of processing unit 1020 shown in FIG11, memory 2030 may have the functions of storage unit, and transceiver 2020 may have the functions of transceiver unit 1010 shown in FIG11.

[0253] For example, the control device 2000 can be used to implement the operations performed by the control module in the various embodiments described above.

[0254] It should be understood that the specific process by which each transceiver and processor performs the above-mentioned corresponding steps has been described in detail in the above method embodiments, and will not be repeated here for the sake of brevity.

[0255] This application also provides a processor for executing computer programs or instructions stored in a memory, or reading data / signaling stored in a memory, to perform the methods in the above-described method embodiments. Optionally, there may be one or more processors.

[0256] This application also provides a chip, including a processor and a communication interface. The processor reads instructions stored in the memory through the communication interface and executes the methods provided in the above embodiments.

[0257] This application also provides a computer-readable storage medium storing computer instructions for implementing the methods executed by a control device or control module in the above-described method embodiments.

[0258] For example, when the computer program is executed by a computer, it enables the computer to implement the methods executed by the control device or control module in the various embodiments of the above methods.

[0259] This application also provides a computer program product comprising instructions that, when executed by a computer, implement the methods performed by the control device or control module in the above-described method embodiments.

[0260] This application embodiment also provides a vehicle, including a light source module as described above and a vehicle body, wherein the light source module is mounted on the vehicle body.

[0261] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0262] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0263] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0264] If the aforementioned functions are implemented as software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a portion of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0265] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A light source module, characterized in that, include: The system includes a light-emitting module and a first optical switch module. The first optical switch module comprises a first optical switch and a first driving module. The first driving module is used to drive the first optical switch to switch between a first position and a second position. The light-emitting module is used to emit a first light beam, which includes at least one of a red light beam, a green light beam, or a blue light beam. When the first optical switch is in the first position, the first color beam in the first light beam is transmitted into the first optical fiber. When the first optical switch is in the second position, the light beam of the first color is transmitted into the second optical fiber. The first optical fiber includes an optical fiber connected to the first display module, and the second optical fiber includes an optical fiber connected to the second display module.

2. The light source module according to claim 1, characterized in that, The first beam comprises beams of at least two colors, wherein, When the first optical switch is in the first position, the first color beam is transmitted into the first optical fiber, and the second color beam in the first beam is transmitted into the second optical fiber. When the first optical switch is in the second position, the light beam of the first color is transmitted into the second optical fiber, or the light beam of the second color is transmitted into the first optical fiber.

3. The light source module according to claim 1 or 2, characterized in that, The first light beam includes three colors of light, and the first driving module is further used to drive the first optical switch to switch between the first position, the second position, and the third position, wherein, When the first optical switch is in the first position, the first color beam is transmitted into the first optical fiber, the second color beam in the first beam is transmitted into the second optical fiber, and the third color beam in the first beam is transmitted into the third optical fiber. When the first optical switch is in the second position, the first color beam is transmitted into the second optical fiber, the second color beam is transmitted into the third optical fiber, and the third color beam is transmitted into the first optical fiber. When the first optical switch is in the third position, the first color light beam is transmitted into the third optical fiber, the second color light beam is transmitted into the first optical fiber, and the third color light beam is transmitted into the second optical fiber. The third optical fiber includes an optical fiber connected to the third display module.

4. The light source module according to claim 1, characterized in that, The light-emitting module includes a first light-emitting module, a second light-emitting module, and a third light-emitting module. The first light-emitting module emits a light beam of the first color, the second light-emitting module emits a light beam of the second color, and the third light-emitting module emits a light beam of the third color. The light source module also includes: The second optical switch module is used to transmit the second color beam into the first optical fiber or the second optical fiber; The third optical switch module is used to transmit the beam of the third color into the first optical fiber or the second optical fiber.

5. The light source module according to claim 1 or 4, characterized in that, The first driving module is also used to drive the first optical switch to switch between the first position, the second position, and the third position. When the first optical switch is in the third position, the light beam of the first color is transmitted into the third optical fiber. The third optical fiber includes an optical fiber connected to the third display module.

6. The light source module according to any one of claims 1 to 5, characterized in that, The light source module also includes a control module. The control module is used to send first indication information to the first drive module, the first indication information being used to indicate that the first optical switch is in the first position, the second position, or the third position.

7. The light source module according to claim 6, characterized in that, The first indication information is also used to instruct the first optical switch to switch between the first position and the second position at a first frequency.

8. The light source module according to claim 6 or 7, characterized in that, The first indication information is also used to instruct the first optical switch to switch between the first position, the second position, and the third position at a second frequency.

9. The light source module according to any one of claims 6 to 8, characterized in that, The control module is also used to acquire the working information of the display module and determine the first indication information based on the working information; The work information includes at least one of the following: The image information to be displayed by the first display module, the second display module, or the third display module; the working mode information of the first display module, the second display module, or the third display module; and the working time information of the first display module, the second display module, or the third display module.

10. The light source module according to any one of claims 1 to 9, characterized in that, The optical switch includes a grating mirror structure or a mirror structure.

11. The light source module according to any one of claims 1 to 10, characterized in that, Also includes: A lens module is used to receive the first light beam and transmit the first light beam to the first optical switch.

12. The light source module according to any one of claims 1 to 10, characterized in that, Also includes: A lens module is used to receive a beam of light of the first color and couple the beam of light of the first color into the first optical fiber, or couple the beam of light of the first color into the second optical fiber.

13. A method for controlling a light source module, characterized in that, The light source module includes a light-emitting module and a first optical switch module. The light-emitting module is used to emit a first light beam, which includes at least one of a red light beam, a green light beam, or a blue light beam. The first optical switch module includes a first optical switch and a first driving module. The method includes: Send a first instruction message, which is used to instruct the first driving module to drive the first optical switch to switch between a first position and a second position; When the first optical switch is in the first position, the first color beam in the first light beam is transmitted into the first optical fiber. When the first optical switch is in the second position, the light beam of the first color is transmitted into the second optical fiber. The first optical fiber includes an optical fiber connected to the first display module, and the second optical fiber includes an optical fiber connected to the second display module.

14. The method according to claim 13, characterized in that, The first beam comprises beams of at least two colors, wherein, When the first optical switch is in the first position, the first color beam is transmitted into the first optical fiber, and the second color beam in the first beam is transmitted into the second optical fiber. When the first optical switch is in the second position, the light beam of the first color is transmitted into the second optical fiber, or the light beam of the second color is transmitted into the first optical fiber.

15. The method according to claim 13 or 14, characterized in that, The first beam comprises beams of three colors, wherein, The first indication information is further used to instruct the first driving module to drive the first optical switch to switch between the first position, the second position, and the third position; wherein, When the first optical switch is in the first position, the first color beam is transmitted into the first optical fiber, the second color beam in the first beam is transmitted into the second optical fiber, and the third color beam in the first beam is transmitted into the third optical fiber. When the first optical switch is in the second position, the first color beam is transmitted into the second optical fiber, the second color beam is transmitted into the third optical fiber, and the third color beam is transmitted into the first optical fiber. When the first optical switch is in the third position, the first color light beam is transmitted into the third optical fiber, the second color light beam is transmitted into the first optical fiber, and the third color light beam is transmitted into the second optical fiber. The third optical fiber includes an optical fiber connected to the third display module.

16. The method according to claim 13, characterized in that, The light-emitting module includes a first light-emitting module, a second light-emitting module, and a third light-emitting module. The first light-emitting module emits a light beam of the first color, the second light-emitting module emits a light beam of the second color, and the third light-emitting module emits a light beam of the third color. The first indication information is further used to instruct the second optical switch module to transmit the beam of the second color into the first optical fiber or the second optical fiber; and / or The first indication information is also used to instruct the third optical switch module to transmit the beam of the third color into the first optical fiber or the second optical fiber.

17. The method according to claim 13 or 16, characterized in that, in, The first indication information is further used to instruct the first driving module to drive the first optical switch to switch between the first position, the second position, and the third position. When the first optical switch is in the third position, the light beam of the first color is transmitted into the third optical fiber. The third optical fiber includes an optical fiber connected to the third display module.

18. The method according to any one of claims 13 to 17, characterized in that, The first indication information is also used to indicate that the first driving module drives the first optical switch to the first position, the second position, or the third position.

19. The method according to any one of claims 13 to 17, characterized in that, The first indication information is also used to instruct the first driving module to drive the first optical switch to switch between the first position and the second position at a first frequency.

20. The method according to any one of claims 13 to 17, characterized in that, The first indication information is also used to instruct the first driving module to drive the first optical switch to switch between the first position, the second position and the third position at a second frequency.

21. The method according to any one of claims 13 to 20, characterized in that, Also includes: Obtain the operating information of the display module, and determine the first indication information based on the operating information; The work information includes at least one of the following: The image information to be displayed by the first display module, the second display module, or the third display module; the working mode information of the first display module, the second display module, or the third display module; and the working time information of the first display module, the second display module, or the third display module.

22. The method according to any one of claims 13 to 21, characterized in that, The optical switch includes a grating mirror structure or a mirror structure.

23. The method according to any one of claims 13 to 22, characterized in that, The light source module also includes a lens module, which is used to receive the first light beam and transmit the first light beam to the first optical switch.

24. The method according to any one of claims 13 to 22, characterized in that, The light source module further includes a lens module, which is used to receive the light beam of the first color and couple the light beam of the first color into the first optical fiber, or couple the light beam of the first color into the second optical fiber.

25. A projection module, characterized in that, include: The image generation unit, the first display module, the second display module, and the light source module as described in any one of claims 1 to 12, The image generation unit is used to output the image information that the first display module and the second display module need to display, and the light source module transmits the light beam superimposed with the image information to the first display module and the second display module.

26. A vehicle display system, characterized in that, Includes a control system and a light source module as described in any one of claims 1 to 12. The control system is used to acquire the working information of the first display module and the second display module, and control the color of the light beam transmitted from the light source module to the first display module and the second display module according to the working information.

27. A means of transportation, characterized in that, The vehicle includes a light source module as described in any one of claims 1 to 12 and the vehicle body, wherein the light source module is mounted on the vehicle body.

28. A control device, characterized in that, Includes a processor, said processor being configured to, by executing computer programs or instructions, or by executing logic circuits, The control device is made to perform the method of any one of claims 13 to 24.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions, which, when executed on a computer... This causes the method of any one of claims 13 to 24 to be performed.

30. A computer program product, characterized in that, Includes instructions that, when executed on a computer, This causes the method of any one of claims 13 to 24 to be performed.

31. A chip system, characterized in that, The chip system includes a processor, a memory, and input / output ports. The memory stores computer programs; the processor executes the computer programs stored in the memory. So that the processor performs the method as described in any one of claims 13 to 24.

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