Laser projection equipment and system thereof

Abstract

The utility model relates to a display technology, and provides a laser projection device and a system thereof, the laser projection device comprises a signal processing module, the signal processing module comprises a first signal interface configured to receive an HDBASE-T signal, a second signal interface configured to receive an HDBASE-T signal, and a third signal interface configured to receive an HDBASE-T signal; the first signal conversion unit is connected with the first signal interface and is configured to convert the HDBASE-T signal into an HDMI (High Definition Multimedia Interface) signal; a processing unit connected with the first signal conversion unit and configured to process the HDMI signal into a VBYONE signal for output; and the imaging module is connected with the signal processing module and is configured to form a projection image based on the VBYONE signal. According to the invention, the format selected by the user can be switched at will, the actual use requirement of the user is met, and the transmission cost of the HDMI cable is reduced.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to display technology. More particularly, to a laser projection device and system thereof. BACKGROUND

[0002] Laser projection systems such as projectors are increasingly popular, and in many commercial scenarios, long-focus projectors are used. A long-focus projector, as the name implies, is a projector with a longer focal length than an ultra-short-focus projector. In addition to having a longer focal length, a long-focus projector also has a longer projection ratio, allowing it to be placed farther away from the screen.

[0003] Existing long-focus projectors need to be hung and suspended to project images. For example, for projector devices in areas such as large supermarkets, conference rooms, airports, and public places, long cables and complex wiring are often required. In this case, it is difficult to control the projector using a PC computer, so a long-distance signal transmission control device is needed to achieve remote control of the projector by the computer.

[0004] The existing HDMI cable transmission distance is only about 5 meters, which limits the use of high-definition devices, and the price of the HDMI cable is relatively high, which does not meet the user's use demand. CONTENT OF THE UTILITY MODEL

[0005] Embodiments of the present application provide a laser projection device and system, which can solve the problem that the existing HDMI cable transmission distance is only about 5 meters, which limits the use of high-definition devices, and the price of the HDMI cable is relatively high, which does not meet the user's use demand.

[0006] In a first aspect, embodiments of the present application provide a laser projection device, which comprises:

[0007] A signal processing module, comprising:

[0008] A first signal interface configured to receive an HDBASE-T signal;

[0009] A first signal conversion unit connected with the first signal interface and configured to convert the HDBASE-T signal into an HDMI signal;

[0010] A processing unit connected with the first signal conversion unit and configured to process the HDMI signal into a VBYONE signal output;

[0011] An imaging module connected with the signal processing module and configured to form a projection image based on the VBYONE signal.

[0012] The application sets a first signal conversion unit in front of the signal processing module, so as to convert the HDBASE-T signal which can be transmitted at a long distance into an HDMI signal which can be processed by the signal processing module, so that the HDBASE-T cable or the HDMI cable can be used according to the actual condition, the wiring cost is reasonably reduced on the basis of ensuring stable transmission, and the laser projection equipment can flexibly receive different signals according to actual needs, the universality of the laser projection equipment is improved, and the user experience is improved.

[0013] In some embodiments, the signal processing module further comprises:

[0014] The second signal conversion unit is connected with the processing unit and the imaging module respectively, and is configured to convert the VBYONE signal into an HDMI signal and output the VBYONE signal.

[0015] The application sets a second signal conversion unit behind the signal processing module, so that the HDMI signal can be restored to an HDBASE-T signal by the second signal conversion unit and transmitted to other equipment, so that the HDBASE-T cable or the HDMI cable can be used according to the actual condition, the laser projection equipment can flexibly receive different signals according to actual needs, the universality of the laser projection equipment is improved, and the user experience is improved.

[0016] In some embodiments, the signal processing module further comprises:

[0017] The third signal conversion unit is connected with the second signal conversion unit, and is configured to convert the VBYONE signal into an HDMI signal and output the VBYONE signal.

[0018] The embodiment sets a third signal conversion unit to realize signal conversion and signal branching.

[0019] In some embodiments, the signal processing module further comprises:

[0020] The fourth signal conversion unit is connected with the first signal conversion unit and the processing unit respectively, and is configured to convert one HDMI signal into at least two HDMI signals.

[0021] The embodiment sets a fourth signal conversion unit to realize that the HDMI signal input signal processing module can also be output to other equipment, so as to realize multi-device loop control.

[0022] In some embodiments, the signal processing module further comprises:

[0023] Crystal oscillator units are connected with the first signal conversion unit, the second signal conversion unit, the third signal conversion unit and the fourth signal conversion unit respectively.

[0024] The crystal oscillator units are configured to provide clock signals for the signal conversion units.

[0025] In some embodiments, the imaging module comprises:

[0026] The digital light processing chip is configured to convert the VBYONE signal into an HSSI signal and a control signal output;

[0027] The laser is configured to output laser based on the control signal output;

[0028] The color wheel is configured to output the laser to the digital micromirror processing chip;

[0029] The digital micromirror processing chip is configured to form a light signal corresponding to a projection image based on the HSSI signal and the laser;

[0030] The lens is configured to project the light signal onto a projection screen corresponding to the laser projection device.

[0031] In some embodiments, the light signal output by the digital micromirror processing chip is a low-resolution light signal, and the imaging module further comprises:

[0032] The galvanometer is configured to jitter the low-resolution light signal into a high-resolution light signal.

[0033] The embodiment improves the image resolution by setting the galvanometer, thereby reducing the defect of reduced image resolution caused by signal switching.

[0034] In some embodiments, the laser projection device further comprises:

[0035] The power module is connected with the signal processing module and the digital light processing chip and the laser respectively.

[0036] In some embodiments, the signal processing module is further provided with a second signal interface configured to receive an HDMI signal.

[0037] The embodiment realizes multi-signal transmission by setting multiple HDMI signal input ports, and can also input the HDBASE-T signal and the HDMI signal into the same laser projection device at the same time, thereby improving the universality of the laser projection device.

[0038] In a second aspect, the embodiment of the present application provides a laser projection system, which comprises:

[0039] a projection screen configured to display a projection image;

[0040] a signal source device connected with the first laser projection device, configured to send an HDMI signal and / or an HDBASE-T signal to the laser projection device;

[0041] a laser projection device configured to form a projection image based on the HDMI signal and / or the HDBASE-T signal to project onto the projection screen.

[0042] In some embodiments, the laser projection device at least includes a first laser projection device and a second laser projection device, the second laser projection device is connected with the first laser projection device, and the first laser projection device is configured to send an HDMI signal and / or an HDBASE-T signal to the second laser projection device.

[0043] The embodiments of the present application simplify wiring and setting, improve efficiency, realize long-distance transmission of images, and ensure that all screens display the same content by using laser projection devices for forwarding, facilitating management and maintenance, and at the same time, the content of the main screen can be synchronized to other displays, improving the efficiency of the conference and the experience of the audience.

[0044] The laser projection device and the system thereof according to the present application, by setting a signal processing module, the signal processing module includes: a first signal interface configured to receive an HDBASE-T signal; a first signal conversion unit connected with the first signal interface and configured to convert the HDBASE-T signal into an HDMI signal; a processing unit connected with the first signal conversion unit and configured to process the HDMI signal into a VBYONE signal for output; and an imaging module connected with the signal processing module and configured to form a projection image based on the VBYONE signal, realizing the effect that the laser projection device can transmit high-definition image signals at a long distance, and the signal format transmitted between multiple laser projection devices is no longer limited, and can be arbitrarily switched to the format selected by the user, meeting the actual use requirements of the user and reducing the transmission cost of the HDMI cable. BRIEF DESCRIPTION OF DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present application or the implementation manners in the related art, the drawings needed to be used in the embodiments or related technical description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0046] Figure 1 FIG. 1 is a structural schematic diagram of a laser projection system;

[0047] Figure 2 Fig. 1 is a schematic diagram of a signal transmission structure of a laser projection system in the prior art;

[0048] Figure 3 Fig. 2 is a schematic diagram of a signal transmission structure of a laser projection device according to the present application;

[0049] Figure 4 Fig. 3 is a schematic diagram of a signal transmission structure of a signal processing module of a laser projection device according to the present application;

[0050] Figure 5 Fig. 4 is a schematic diagram of a composition structure of a signal processing module of a laser projection device according to the present application;

[0051] Figure 6 Fig. 5 is a schematic diagram of a signal transmission structure of another signal processing module of a laser projection device according to the present application;

[0052] Figure 7 Fig. 6 is a schematic diagram of a composition structure of another signal processing module of a laser projection device according to the present application;

[0053] Figure 8 Fig. 7 is a schematic diagram of a signal transmission path of a laser projection device according to the present application;

[0054] Figure 9 Fig. 8 is a schematic diagram of another signal transmission path of a laser projection device according to the present application;

[0055] Figure 10 Fig. 9 is a schematic diagram of a signal transmission path of a laser projection system according to the present application;

[0056] Figure 11 Fig. 10 is a schematic diagram of another signal transmission path of a laser projection system according to the present application;

[0057] Figure 12 Fig. 11 is a schematic diagram of still another signal transmission path of a laser projection system according to the present application;

[0058] Figure 13 Fig. 12 is a schematic diagram of yet another signal transmission path of a laser projection system according to the present application.

[0059] Explanation of Reference Signs

[0060] 100, signal source device;

[0061] 200, laser projection device;

[0062] 210, signal processing module; 211, first signal conversion unit; 212, second signal conversion unit; 213, third signal conversion unit; 214, crystal oscillator unit; 215, fourth signal conversion unit; 216, processing unit;

[0063] 220, imaging module; 221, digital light processing chip; 222, laser; 223, color wheel; 224, digital micromirror processing chip; 225, lens; 226, galvanometer;

[0064] 230, power module;

[0065] 300, projection screen. DETAILED DESCRIPTION

[0066] The exemplary embodiments will be described in detail herein with reference to the attached drawings. In the following description, the same or similar components are designated by the same or similar reference numerals, and a repeated description of the same or similar components will be omitted. The following exemplary embodiments are not intended to represent all embodiments in accordance with the present application. Rather, they are merely examples in accordance with some aspects of the present application as detailed in the appended claims.

[0067] For the purpose of clarity, the exemplary embodiments of the present application will be described in detail in connection with the drawings attached hereto. It is obvious, however, that the described exemplary embodiments are only a part of the embodiments in accordance with the present application, and do not represent all of the embodiments in accordance with the present application.

[0068] It is to be understood that the terms used in the present application are merely used to describe particular embodiments of the present application and are not intended to limit the scope of the present application. Unless otherwise defined, such terms are to be interpreted as is customary and well-understood by those of ordinary skill in the art.

[0069] Also, the terms "include" and "have" and their conjugates, are intended to be inclusive, unless otherwise specified, and are to be construed as containing, without excluding, for example, a series of components of products or equipment, not necessarily those clearly listed, but also other components not clearly listed or inherent to such products or equipment.

[0070] In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate the orientation or positional relationship based on the orientation or position shown in the drawings, and are merely used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

[0071] The terms "first", "second", "third", etc. are used only for descriptive purposes and do not connote or imply relative importance or an ordering between or among the indicated technical features. Thus, a feature defined with "first", "second", etc. can include one or more of the features implicitly or explicitly.

[0072] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral connection; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0073] Figure 1 It is a structural schematic diagram of a laser projection system. Referring to Figure 1 As shown, the laser projection system includes a signal source device 100, a laser projection device 200 and a projection screen 300, the signal source device 100 sends a signal corresponding to a projection image to the laser projection device 200, the laser projection device 200 converts the signal corresponding to the projection image into a laser signal, and projects it onto the projection screen 300, thereby realizing the effect of laser projection.

[0074] When the laser projection device needs to project in an open area such as a supermarket, a conference room, an airport, a public place, etc., it often needs a very long cable and a complex wiring layout. At this time, it is more difficult to use a PC computer host as a signal source device to control the projector. In order to reduce the complexity of wiring, in the related art, the following laser projection system can be used.

[0075] Figure 2 It is a structural schematic diagram of a signal transmission structure of a laser projection system in the prior art. Referring to Figure 2 As shown, the computer host outputs an HDMI signal as a kind of signal source device to the first projection device, the first projection device receives the HDMI signal and outputs the HDMI signal to the second projection device, the second projection device receives the HDMI signal and outputs the HDMI signal to the third projection device, each projection device can correspond to a projection screen, the projection screen forms a projection image based on the converted optical signal of the projection device, and multiple projection devices share the same HDMI signal, thereby realizing the effect of multiple screens synchronously displaying the same content projection image.

[0076] However, the cable transmission distance of the HDMI signal used by the laser projection system is only about 5 meters, which limits the use range of the high-definition device, and the price of the HDMI cable is relatively high, which does not meet the user's use demand.

[0077] Therefore, the laser projection system provided by the embodiments of the present application replaces at least part of the HDMI signal transmission with HDBASE-T signal transmission, aiming to solve the above problems of the prior art.

[0078] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0079] The present application mainly improves the laser projection device, therefore, the composition of the laser projection device needs to be explained, specifically:

[0080] Figure 3 The signal transmission structure of the laser projection device of the present application is shown. Referring to Figure 3 The laser projection device includes a signal processing module 210 and an imaging module 220.

[0081] Specifically, the signal processing module 210 is configured to process the HDMI signal into a VBYONE signal output.

[0082] The signal processing module 210 includes:

[0083] The first signal interface is configured to receive the HDBASE-T signal;

[0084] The first signal conversion unit 211 is connected with the first signal interface and is configured to convert the HDBASE-T signal into an HDMI signal;

[0085] The processing unit 216 is connected with the first signal conversion unit and is configured to process the HDMI signal into a VBYONE signal output.

[0086] The interface of the processing unit 216 can be provided with multiple, for example, three HDMI first signal interfaces, one HDMI signal port is connected with the first signal conversion unit 211, can receive the formatted HDBASE-T signal, and the other two HDMI signal ports normally receive the HDMI signal, therefore, the signal processing module 210 can receive the HDMI signal and the HDBASE-T signal at the same time in addition to receiving the HDMI signal or the HDBASE-T signal alone.

[0087] The imaging module 220 is connected with the signal processing module 210, and is configured to form a projection image based on the VBYONE signal.

[0088] For example, the signal processing module 210 includes a first signal conversion unit 211 and a second signal conversion unit 212.

[0089] The first signal conversion unit 211 is configured to convert the HDBASE-T signal into an HDMI signal, and output the HDMI signal to the signal processing module.

[0090] The second signal conversion unit 212 is configured to convert the HDMI signal into an HDBASE-T signal, and output the HDBASE-T signal.

[0091] Optionally, the signal processing module 210 further includes a third signal conversion unit 213.

[0092] Specifically, the third signal conversion unit 213 is configured to convert the VBYONE signal into an HDMI signal and a VBYONE signal.

[0093] Figure 4 A signal processing module and a signal transmission structure of the signal processing module of the laser projection device are provided. Figure 4 As shown in the figure, the HDBASE-T signal is first processed by the first signal conversion unit 211 into an HDMI signal, and then converted by the signal processing module 210 into a VBYONE signal. The VBYONE signal is forwarded by the third signal conversion unit 213 to the imaging module 220 as a VBYONE signal, or converted into an HDMI signal. The HDMI signal is converted by the second signal conversion unit 212 into an HDBASE-T signal and output to other laser projection devices.

[0094] Optionally, Figure 5 A signal processing module and a composition structure of the signal processing module of the laser projection device are provided. Figure 5 As shown in the figure, the signal processing module 210 further includes a crystal oscillator unit 214 connected with the first signal conversion unit 211, the second signal conversion unit 212, and the third signal conversion unit 213.

[0095] For example, the crystal oscillator unit 214 transmits a 125MHz crystal oscillator to the first signal conversion unit 211, a 125MHz crystal oscillator to the second signal conversion unit 212, and a 24MHz crystal oscillator to the third signal conversion unit 213.

[0096] Figure 6Another signal processing module and signal transmission structure of the laser projection device of the present application are shown in FIG. 2B. Referring to FIG. 2B, Figure 6 As shown, the HDBASE-T signal is first processed by the first signal conversion unit 211 into an HDMI signal output, and then the HDMI signal is divided by the fourth signal conversion unit 215 into one HDMI signal output to other laser projection devices or third-party terminals, and one HDMI signal output to the signal processing module 210. The HDMI signal is converted by the signal processing module 210 into a VBYONE signal output, and the VBYONE signal is forwarded by the third signal conversion unit 213 to the imaging module 220 or converted into an HDMI signal output, and the HDMI signal is converted by the second signal conversion unit 212 into an HDBASE-T signal output to other laser projection devices.

[0097] Optionally, Figure 7 Another signal processing module and signal processing module structure of the laser projection device of the present application are shown in FIG. 2C. Referring to FIG. 2C, Figure 7 As shown, the signal processing module 210 further includes a crystal unit 214 connected with the first signal conversion unit 211, the second signal conversion unit 212, the third signal conversion unit 213 and the fourth signal conversion unit 215 respectively.

[0098] For example, the crystal unit 214 transmits a 125MHz crystal to the first signal conversion unit 211, a 25MHz crystal to the fourth signal conversion unit 215, a 125MHz crystal to the second signal conversion unit 212, and a 24MHz crystal to the third signal conversion unit 213.

[0099] For example, the first signal conversion unit 211 can be a receiving chip, such as VS100RX, the second signal conversion unit 212 can be a conversion chip, such as NT68411, the third signal conversion unit 213 can be a transmitting chip, such as VS100TX, and the fourth signal conversion unit 215 can be a shunt chip, such as LT86102UXE.

[0100] Referring to the above two structures, two corresponding laser projection device structures can be designed. For example, Figure 8 A signal transmission path of the laser projection device of the present application is shown in FIG. 3A; Figure 9 Another signal transmission path of the laser projection device of the present application is shown in FIG. 3B. Referring to FIG. 3B, Figure 8 and Figure 9 As shown, the imaging module 220 includes:

[0101] The digital light processing chip 221 is configured to convert the VBYONE signal into an HSSI signal and a control signal output.

[0102] a laser 222 configured to output laser based on a control signal, wherein the control signal comprises laser brightness control (PWM) and laser switch control (Duty).

[0103] a color wheel 223 configured to output the laser to a digital micromirror processing chip 224.

[0104] the digital micromirror processing chip 224 configured to form a light signal corresponding to a projection image based on the HSSI signal and the laser.

[0105] a lens 225 configured to project the light signal to a projection screen corresponding to the laser projection device.

[0106] Optionally, the light signal output by the digital micromirror processing chip is a low-resolution light signal, and the imaging module 220 further comprises:

[0107] a galvanometer 226 disposed between the digital micromirror processing chip 224 and the lens 225, configured to jitter the low-resolution light signal into a high-resolution light signal, for example, jittering a 2K signal into a 4K signal.

[0108] For example, the laser projection device further comprises a power module 230 connected with the signal processing module 210 and the digital light processing chip 221 and the laser 222 respectively.

[0109] Based on the structure of the laser projection device described above, the present application further provides a laser projection system, comprising:

[0110] a projection screen 300 configured to display a projection image;

[0111] a signal source device 100 connected with the first laser projection device, configured to send an HDMI signal and / or an HDBASE-T signal to the laser projection device 200;

[0112] and the laser projection device 200 connected with the signal source device 100, configured to form a projection image based on the HDMI signal and / or the HDBASE-T signal to project onto the projection screen.

[0113] In some embodiments, the laser projection device is provided with a plurality of laser projection devices, at least comprising a first laser projection device and a second laser projection device, the second laser projection device being connected with the first laser projection device, and the first laser projection device being configured to send an HDMI signal and / or an HDBASE-T signal to the second laser projection device.

[0114] For example, the signal source device is a computer host, the laser projection device is provided with three, and a laser projection system is formed. The fourth signal conversion unit comprises an HDBASE-T loop-through chip or an HDMI loop-through chip. Figure 10 A signal transmission path schematic diagram of the laser projection system; Figure 11 Another signal transmission path schematic diagram of the laser projection system; Figure 12 Still another signal transmission path schematic diagram of the laser projection system; Figure 13 Still another signal transmission path schematic diagram of the laser projection system.

[0115] Reference Figure 10 As shown in the figure, the computer host outputs an HDBASE-T audio and video signal, transmits the audio and video signal to the first projection device through an HDBASE-T network cable, the first projection device identifies the HDBASE-T signal and displays the projection, at the same time, the first projection device outputs an HDBASE-T audio and video signal to the second projection device through an HDBASE-T conversion chip, the second projection device identifies the HDBASE-T signal and displays the projection, at the same time, the second projection device outputs an HDBASE-T audio and video signal to the third projection device through an HDBASE-T loop-through chip.

[0116] Reference Figure 11 As shown in the figure, the computer host outputs an HDBASE-T audio and video signal, transmits the audio and video signal to the first projection device through an HDBASE-T network cable, the first projection device identifies the HDBASE-T signal and displays the projection, at the same time, the first projection device outputs an HDBASE-T audio and video signal to the second projection device through an HDBASE-T conversion chip, the second projection device identifies the HDBASE-T signal and displays the projection, at the same time, the second projection device outputs an HDBASE-T audio and video signal to the third projection device through an HDBASE-T loop-through chip.

[0117] Reference Figure 12 As shown in the figure, the computer host outputs an HDBASE-T audio and video signal, transmits the audio and video signal to the first projection device through an HDBASE-T network cable, the first projection device identifies the HDBASE-T signal and displays the projection, at the same time, the first projection device outputs an HDBASE-T audio and video signal to the second projection device through an HDBASE-T conversion chip, the second projection device identifies the HDBASE-T signal and displays the projection, at the same time, the second projection device outputs an HDBASE-T audio and video signal to the third projection device through an HDBASE-T loop-through chip.

[0118] Reference Figure 13As shown, the computer host outputs HDMI audio and video signals, transmits the audio and video signals to the first projection device through the HDMI line, the first projection device identifies the HDMI signal and displays the projection, at the same time, the first projection device outputs the HDBASE-T audio and video signals to the second projection device through the HDBASE-T conversion chip, the second projection device identifies the HDBASE-T signal and displays the projection, at the same time, the second projection device outputs the HDMI audio and video signals to the third projection device through the HDMI loop-through chip.

[0119] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

[0120] For the convenience of explanation, the above description has been made in combination with specific embodiments. However, the above exemplary discussion is not intended to exhaust or limit the embodiments to the specific forms disclosed above. Various modifications and variations can be derived according to the above teachings. The selection and description of the above embodiments are to better explain the principles and practical applications, so that those skilled in the art can better use the embodiments and various different modified embodiments suitable for specific use considerations.

Claims

1. A laser projection device, characterized by, include: The signal processing module includes: The first signal interface is configured to receive HDBASE-T signals; A first signal conversion unit, connected to a first signal interface, is configured to convert the HDBASE-T signal into an HDMI signal; The processing unit, connected to the first signal conversion unit, is configured to process the HDMI signal into a VBYONE signal for output. An imaging module, connected to the signal processing module, is configured to form a projection image based on the VBYONE signal.

2. The laser projection device of claim 1, wherein, The signal processing module further includes: The second signal conversion unit is connected to the processing unit and the imaging module respectively, and is configured to convert the VBYONE signal into HDMI signal and VBYONE signal output.

3. The laser projection device of claim 2, wherein, The signal processing module further includes: The third signal conversion unit, connected to the second signal conversion unit, is configured to convert the HDMI signal into an HDBASE-T signal for output.

4. The laser projection device according to any one of claims 1-3, wherein, The signal processing module further includes: The fourth signal conversion unit is connected to the first signal conversion unit and the processing unit respectively, and is configured to convert one HDMI signal into at least two HDMI signals.

5. The laser projection device of claim 4, wherein, The signal processing module further includes: The crystal oscillator unit is connected to the first signal conversion unit, the second signal conversion unit, the third signal conversion unit, and the fourth signal conversion unit, respectively.

6. The laser projection device of claim 1, wherein, The imaging module includes: The digital optical processing chip is configured to convert VBYONE signals into HSSI signals and control signals for output. The laser is configured to output laser light based on a control signal; A color wheel is configured to output the laser to a digital micromirror processing chip; The digital micromirror processing chip is configured to form a projection image based on the HSSI signal and the light signal corresponding to the laser; The lens is configured to project light signals onto a projection screen corresponding to the laser projection device.

7. The laser projection device of claim 6, wherein, The optical signal output by the digital micromirror processing chip is a low-resolution optical signal, and the imaging module further includes: A galvanometer, disposed between the digital micromirror processing chip and the lens, is configured to dither the low-resolution optical signal into a high-resolution optical signal.

8. The laser projection device of claim 1, wherein, The signal processing module is also provided with a second signal interface, which is configured to receive HDMI signals.

9. A laser projection system, characterized by, include: A projection screen, configured to display a projected image; A signal source device, connected to a first laser projection device, is configured to send HDMI signals and / or HDBASE-T signals to the laser projection device; The laser projection device as described in any one of claims 1-8 is configured to form a projection image based on the HDMI signal and / or HDBASE-T signal for projection onto the projection screen.

10. The laser projection system of claim 9, wherein, The laser projection device includes at least a first laser projection device and a second laser projection device, the second laser projection device being connected to the first laser projection device, and the first laser projection device being configured to send HDMI signals and / or HDBASE-T signals to the second laser projection device.

Images