Multi-screen driver

Abstract

The utility model discloses a multi-screen driver, which comprises an input interface, a split screen controller, a plurality of video converters and a plurality of display screen interfaces, the split screen controller is respectively and electrically connected with the input interface and the plurality of video converters, and the plurality of display screen interfaces are respectively and electrically connected with one video converter. The input interface is used for externally connecting equipment, the display screen interface is used for connecting a display screen, and the split-screen controller is used for processing a first video signal input by the input interface into a second video signal and transmitting the second video signal to the video converter; and the video converter converts the second video signal transmitted by the split-screen controller into a third video signal and outputs the third video signal through the display screen interface, so that the video signal input by an external device can be projected to a plurality of display screens, and the requirement of a user for adapting the notebook computer to the plurality of display screens is met.

Description

Technical Field

[0001] This utility model relates to the technical field of display screen driving, and in particular to a multi-screen driver. Background Technology

[0002] Currently, desktop computers typically use a video cable connected to an external display port to connect to a monitor. To use two monitors, another video cable is used to connect the monitor to an external display port on the motherboard, achieving dual-screen display. However, laptops generally only have one display port, and some smaller, more streamlined laptops only have a Type-C port. This means laptops cannot be used with multiple monitors, which is insufficient for users who need multiple displays. Furthermore, current display ports simply project the laptop's video signal onto the monitor, failing to display different interfaces on two separate screens, thus not meeting diverse user needs. Utility Model Content

[0003] The main purpose of this utility model is to provide a multi-screen driver to solve the problem that existing laptops only have one display interface or the TYPE-C interface cannot connect to multiple displays at the same time.

[0004] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0005] A multi-screen driver includes an input interface, a split-screen controller, multiple video converters, and multiple display screen interfaces. The split-screen controller is electrically connected to the input interface and the multiple video converters, and each of the multiple display screen interfaces is electrically connected to one of the video converters.

[0006] The input interface is used to connect external devices, the display interface is used to connect to the display screen, the split-screen controller is used to process the first video signal input from the input interface into a second video signal and then transmit it to the video converter, the video converter converts the second video signal transmitted by the split-screen controller into a third video signal and then outputs it through the display interface.

[0007] Furthermore, the second video signal is an HDMI signal, and the third video signal is an eDP signal;

[0008] The input interface is a USB interface, used to support input of USB 2.0 data signals and / or USB 3.0 data signals.

[0009] Furthermore, the split-screen controller outputs the same or different video signals to their respective display interfaces through multiple video converters.

[0010] Furthermore, the multi-screen driver also includes a power module and a power interface for external power supply. The power interface is electrically connected to the power module. The power module processes the power signal input from the power interface and supplies it to the split-screen controller, multiple video converters, and multiple display screen interfaces respectively. The display screen interfaces supply the power output from the power module to the display screen.

[0011] Furthermore, the multi-screen driver also includes a protocol chip, which is electrically connected to the power interface, the input interface and the power module respectively;

[0012] When the protocol chip detects power input through the power interface, the protocol chip transmits the power input through the power module to the split-screen controller, multiple video converters and multiple display interfaces respectively.

[0013] When the power interface is connected to a power source and the protocol chip detects that the input interface is receiving power, the protocol chip transmits the power input from the input interface to the split-screen controller, multiple video converters, and multiple display interfaces via the power module.

[0014] Furthermore, the number of video converters and display screen interfaces are three each; the number of power modules is four, namely a first power module and three second power modules; both the first power module and the second power module are electrically connected to the protocol chip, the first power module is also electrically connected to the split screen controller, and each of the three second power modules is connected to a video converter and a display screen interface.

[0015] The first power module includes a first power unit and a second power unit. The first power unit is electrically connected to the protocol chip and the second power unit, respectively. The second power unit is also electrically connected to the split-screen controller.

[0016] The second power module includes a third power unit, a fourth power unit, and a fifth power unit. The third power unit is electrically connected to the protocol chip, the fourth power unit, and the fifth power unit, respectively. The fourth power unit is electrically connected to the video converter and the display interface, respectively. The fifth power unit is electrically connected to the display interface.

[0017] The first power supply unit and the third power supply unit are both used to convert the first voltage output by the protocol chip into a second voltage and then output it. The second power supply unit is used to convert the second voltage into a third voltage and then output it to the split screen controller. The fourth power supply unit is used to convert the second voltage into a fourth voltage and then output it to the video converter and the display screen interface respectively. The fifth power supply unit is used to convert the second voltage into a fifth voltage and then output it to the display screen interface.

[0018] Furthermore, the multi-screen driver also includes an MCU electrically connected to the power module, as well as an indicator light and a power button electrically connected to the MCU. The MCU drives the indicator light to light up when the user operates the power button and the power module outputs power.

[0019] Furthermore, the multi-screen driver also includes a storage memory, which is electrically connected to the split-screen controller and is used to store configuration data required for the allocation controller's calculations.

[0020] Furthermore, the multi-screen driver also includes: a first crystal oscillator and a first Flash memory electrically connected to the split-screen controller, and a second crystal oscillator, a second Flash memory, and control buttons electrically connected to each video converter.

[0021] Furthermore, the multi-screen driver also includes a gravity sensor electrically connected to the video converter. When the gravity sensor detects a change in the direction of gravity, it sends an electrical signal back to the video converter. The video converter then rotates the image on the display screen based on this electrical signal and through the display screen interface.

[0022] This invention has the following advantages: Compared with the prior art, this invention connects to external devices through an input interface to receive video signals from external devices, and uses a split-screen controller to divide the video signals into multiple groups, which are then transmitted to multiple video converters. The video converters convert the video signals output by the split-screen controller into video signals that are compatible with the display screens, so as to realize that the video signal input from one external device can be projected onto multiple display screens, thus meeting the user's need for a laptop to be compatible with multiple display screens and solving the problem that existing laptops cannot be used with multiple display screens. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the principle of this utility model;

[0025] Figure 2 This is a schematic block diagram illustrating the electrical connections between the protocol chip, power module, split-screen controller, video converter, and video interface of this utility model.

[0026] Figure 3 This is a schematic block diagram illustrating the electrical connection between the MCU, power module, indicator light, and power button of this utility model.

[0027] Figure 4 This is a schematic block diagram illustrating the electrical connection between the screen splitter controller, the first crystal oscillator, the storage memory, and the first Flash memory of this utility model.

[0028] Figure 5 This is a schematic diagram illustrating the electrical connections between the video converter, the second crystal oscillator, the second Flash memory, and the control buttons of this utility model. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Refer to the attached diagram. Figure 5 This invention relates to a multi-screen driver in one embodiment of the present invention.

[0031] See attached document Figure 1 The multi-screen driver includes an input interface 1, a split-screen controller 3, multiple video converters 6, and multiple display interfaces 5. The split-screen controller 3 is electrically connected to the input interface 1 and the multiple video converters 6, and each of the multiple display interfaces 5 is electrically connected to one video converter 6. The input interface 1 is used to connect external devices, and the display interfaces 5 are used to connect to display screens. The split-screen controller 3 processes the first video signal input from the input interface 1 into a second video signal and then transmits it to the video converters 6. The video converters 6 convert the second video signal transmitted by the split-screen controller 3 into a third video signal and then output it through the display interfaces 5.

[0032] This invention connects to external devices via input interface 1 to receive video signals from those devices. The split-screen controller 3 divides the video signals into multiple groups and transmits them to multiple video converters 6. The video converters 6 then convert the video signals output by the split-screen controller 3 into video signals compatible with the display screens. This allows the video signal input from one external device to be projected onto multiple displays, meeting the user's need for a laptop to be compatible with multiple displays and solving the problem that existing laptops cannot be used with multiple displays.

[0033] Specifically, external devices can be laptops, tablets, etc.

[0034] In one embodiment, the second video signal is an HDMI signal, and the third video signal is an eDP signal. That is, the split-screen controller 3 is used to convert the first video signal input from the input interface 1 into an HDMI signal and transmit it to multiple video converters 6. The video converters 6 convert all the HDMI signals into eDP signals and output them through the display interface 5.

[0035] Specifically, when there are two video converters 6, there are also two display interfaces 5, with each video converter 6 connected to one display interface 5. The split-screen controller 3 converts the first video signal input from the input interface 1 into an HDMI signal, and then transmits the HDMI signal to the video converters 6 respectively. After receiving the HDMI signal, the video converter 6 converts the HDMI signal into an eDP signal and outputs it through the display interface 5, so that the video signal of the external device can be projected onto two displays through the multi-screen driver of this utility model.

[0036] When there are three video converters 6, that is, three display interfaces 5, each video converter 6 is connected to one display interface 5. This is used to convert the first video signal input from input interface 1 into an HDMI signal and then transmit the HDMI signal to each of the three video converters 6. Each video converter 6 receives the HDMI signal, converts it into an eDP signal, and outputs it through the display interface 5, so that the video signal from the external device can be projected onto three displays through this multi-screen driver.

[0037] In one embodiment, input interface 1 is a USB interface, used to support input USB 2.0 data signals and / or USB 3.0 data signals. Therefore, input interface 1 can not only receive video signals but also audio signals. Through the split-screen controller 3, video converter 6, display interface 5, and display screen, screen projection can be achieved while simultaneously playing the corresponding audio. Specifically, input interface 1 is a Type-C interface to adapt to devices such as laptops and tablets. Of course, input interface 1 can also be an Apple interface; the type of input interface 1 is not limited here.

[0038] In one embodiment, the split-screen controller 3 outputs the same or different video signals to their respective display interfaces 5 via multiple video converters 6. Specifically, when the multi-screen driver of this invention is connected to an external device, it automatically generates an operating program or software on the external device. Using this program or software, the user can select a display screen to operate on. Specifically, when the user operates the display screen of the external device, after passing through the split-screen control, video converters 6, and display interfaces 5, the display screen displays the same image as the external device. Based on this, the user can display the same or different images on multiple displays, thus realizing the function of simultaneous or different display on multiple displays.

[0039] In one embodiment, the multi-screen driver further includes a power module 7 and a power interface 2 for external power supply. The power interface 2 is electrically connected to the power module 7. The power module 7 processes the power signal input from the power interface 2 and supplies it to the split-screen controller 3, multiple video converters 6, and multiple display screen interfaces 5 respectively. The display screen interfaces 5 supply the power output from the power module 7 to the display screen, so that the split-screen controller 3 and the multiple video converters 6 can be powered on. Furthermore, by using the display screen interfaces 5 to supply the power output from the power module 7 to the display screen, the problem of the display screen needing to be connected to a separate power supply can be eliminated, reducing wiring and greatly improving the convenience of user operation.

[0040] In one embodiment, the multi-screen driver further includes a protocol chip 4, which is electrically connected to the power interface 2, the input interface 1, and the power module 7. When the protocol chip 4 detects power input at the power interface 2, it transmits the power input from the power interface 2 to the split-screen controller 3, multiple video converters 6, and multiple display interfaces 5 via the power module 7. When the power interface 2 is not connected to power, and the protocol chip 4 detects power input at the input interface 1, it transmits the power input from the input interface 1 to the split-screen controller 3, multiple video converters 6, and multiple display interfaces 5 via the power module 7. The protocol chip 4 can be used to detect whether the input interface 1 and the power interface 2 are connected to power signals. When both the power interface 2 and the input interface 1 are connected to power signals, the protocol chip 4 outputs the power signal input from the power interface 2 to the power module 7 to prevent the use of power signals from external devices from causing rapid power consumption on the external devices and affecting their battery life. When only the input interface 1 receives a power signal, the protocol chip 4 transmits the power signal from the input interface 1 to the display interface 5, the split-screen controller 3, and the video converter 6 via the power module 7, so that the multi-screen driver of this utility model can be used in places where there is no external power supply.

[0041] Specifically, protocol chip 4 can be selected from models such as LRD6020 and LDR6282.

[0042] See attached document Figure 2 In one embodiment, there are three video converters 6 and three display interfaces 5. There are four power modules 7: a first power module 71 and three second power modules 72. Both the first power module 71 and the second power modules 72 are electrically connected to the protocol chip 4. The first power module 71 is also electrically connected to the split-screen controller 3. Each of the three second power modules 72 is connected to one video converter 6 and one display interface 5. By configuring the split-screen controller 3 with one first power module 71 and configuring each of the multiple video converters 6 with one second power module 72, a stable power supply can be provided to both the split-screen controller 3 and the video converters 6, preventing power instability from affecting their operation.

[0043] Specifically, the first power module 71 includes a first power unit 711 and a second power unit 712. The first power unit 711 is electrically connected to the protocol chip 4 and the second power unit 712, respectively. The second power unit 712 is also electrically connected to the split-screen controller 3. The second power module 72 includes a third power unit 721, a fourth power unit 722, and a fifth power unit 723. The third power unit 721 is electrically connected to the protocol chip 4, the fourth power unit 722, and the fifth power unit 723, respectively. The fourth power unit 722 is electrically connected to the video converter 6 and the display interface 5, respectively. The fifth power unit 723 is electrically connected to the display interface 5.

[0044] Both the first power supply unit 711 and the third power supply unit 721 are used to convert the first voltage output by the protocol chip 4 into a second voltage before outputting it. It should be understood that the protocol chip 4 outputs a first voltage to the first power supply unit 711 and the third power supply unit 721 respectively for their respective use. The second power supply unit 712 is used to convert the second voltage into a third voltage and output it to the split-screen controller 3, so that the split-screen controller 3 obtains the appropriate voltage for normal operation. The fourth power supply unit 722 is used to convert the second voltage into a fourth voltage and output it to the video converter 6 and the display interface 5 respectively. The fifth power supply unit 723 is used to convert the second voltage into a fifth voltage and output it to the display interface 5, so that the video converter 6 and the display screen obtain the appropriate voltage for normal operation.

[0045] Specifically, when the split-screen controller 3 uses the SM770 chip, the second voltage is 5V. The operating voltages of the split-screen controller 3 include 0.9V, 1.0V, 1.2V, 1.8V, and 3.3V, meaning the third voltage includes 0.9V, 1.0V, 1.2V, 1.8V, and 3.3V. It should be noted that the second power supply unit 712 includes multiple power conversion circuits, which can convert the input 5V into 0.9V, 1.0V, 1.2V, 1.8V, and 3.3V respectively for use by the split-screen controller 3.

[0046] When the video converter 6 uses the RTD2556VD chip, the second voltage is 5V. The operating voltage of the video converter 6 includes 1.1V and 3.3V. The voltage output from the display interface 5 is 3.3V and 12V, meaning the fourth voltage is 1.1V and 3.3V. It should be noted that the fourth power supply unit 722 includes two power conversion circuits, which convert the input 5V into 1.1V and 3.3V respectively. The 1.1V is used by the video converter 6, and the 3.3V is used by both the video converter 6 and the display interface 5. The fifth power supply unit 723 is a single power conversion circuit, which converts the input 5V into 12V and supplies the 12V to the display screen via the display interface 5.

[0047] In the above embodiments, the split-screen controller 3 can also use other types of chips, and the video converter 6 can use chips such as RTD2555. There are no restrictions on the models of the split-screen controller 3 and the video converter 6. The power module 7 can also supply power to the displays without going through the display interface 5, allowing each display to be connected to an external power supply. Furthermore, since the split-screen controller 3 and the video converter 6 use different chip models, their operating voltages are also different. Users can configure the corresponding voltage for the split-screen controller 3 and the video converter 6 according to their respective chip models.

[0048] See attached document Figure 3 In one embodiment, the multi-screen driver further includes an MCU9 electrically connected to the power module 7, and an indicator light 92 and a power button 91 electrically connected to the MCU9. The MCU9 illuminates the indicator light 92 when the user operates the power button 91 and the power module 7 outputs power. The indicator light 92 allows the user to determine the power-on status of the multi-screen driver. Specifically, the MCU9 can be a chip such as MS8S5880 or CMS8S003. The MCU9 is electrically connected to the protocol chip 4, meaning that the power output from the protocol chip 4 is processed by a power conversion circuit before supplying power to the MCU9.

[0049] See attached document Figure 4 and attached Figure 5 In one embodiment, the multi-screen driver further includes a storage memory 32, which is electrically connected to the split-screen controller 3. The storage memory 32 is used to store configuration data required by the split-screen controller 3 during operation, thereby accelerating the operation speed of the frequency divider controller and improving the transmission speed of the video signal. Specifically, the storage memory 32 is also electrically connected to the second power supply unit 712 to supply power to the storage memory 32.

[0050] In one embodiment, the multi-screen driver further includes: a first crystal oscillator 31 and a first Flash memory 33 electrically connected to the split-screen controller 3, and a second crystal oscillator 61, a second Flash memory 62, and control buttons 63 electrically connected to each video converter 6. The first crystal oscillator 31 provides a clock signal to the split-screen controller 3, and the second crystal oscillator 61 provides a clock signal to the video converter 6, ensuring the orderly operation of the split-screen controller 3 and the video converter 6. The first Flash memory 33 can be used to store data and programs of the split-screen controller 3, and the second Flash memory 62 can be used to store data and programs of the video converter 6. Both the first Flash memory 33 and the second Flash memory 62 are also electrically connected to the power module 7 to ensure normal operation upon power-up.

[0051] In this way, by operating the control button 63, the display screen connected to the video converter 6 via the display screen interface 5 can be turned on or off. By operating the control button 63, the display parameters of the display screen, such as the color temperature and brightness, can be adjusted, so that the user can conveniently operate the display screen through the device of this embodiment, thereby increasing the practicality of the device of this embodiment.

[0052] In one embodiment, the multi-screen driver further includes a gravity sensor 8 electrically connected to the video converter 6. When the gravity sensor 8 detects a change in the direction of gravity, it sends an electrical signal to the video converter 6. Based on this electrical signal, the video converter 6 rotates the image on the screen via the display interface 5. Currently, in commercially available multi-screen displays, the screen is rotatably connected to a stand. That is, in the initial state, the screen is located behind the stand. When the screen rotates relative to the stand, the gravity sensor 8 detects the change in the screen's position and sends an electrical signal to the video converter 6. Based on this electrical signal, the video converter 6 rotates the image on the screen accordingly via the display interface 5 for user convenience.

[0053] It should be noted that in the embodiments of the multi-screen driver of this utility model, not every video converter 6 is connected to a gravity sensor 8. Some video converters 6 may be configured with a gravity sensor 8. Users can configure the gravity sensor 8 according to the adapted multi-screen display.

[0054] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0055] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the term "and / or" throughout the text includes three solutions; taking A and / or B as an example, it includes technical solution A, technical solution B, and a technical solution that simultaneously satisfies A and B. Furthermore, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of a person skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0056] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A multi-screen driver, characterized in that, It includes an input interface, a split-screen controller, multiple video converters, and multiple display screen interfaces. The split-screen controller is electrically connected to the input interface and the multiple video converters, and each of the multiple display screen interfaces is electrically connected to one of the video converters. The input interface is used to connect external devices, the display interface is used to connect to the display screen, the split-screen controller is used to process the first video signal input from the input interface into a second video signal and then transmit it to the video converter, the video converter converts the second video signal transmitted by the split-screen controller into a third video signal and then outputs it through the display interface.

2. The multi-screen driver according to claim 1, characterized in that, The second video signal is an HDMI signal, and the third video signal is an eDP signal; The input interface is a USB interface, used to support input of USB 2.0 data signals and / or USB 3.0 data signals.

3. The multi-screen driver according to claim 1, characterized in that, The split-screen controller outputs the same or different video signals to their respective display interfaces through multiple video converters.

4. The multi-screen driver according to claim 1, characterized in that, It also includes a power module and a power interface for external power supply. The power interface is electrically connected to the power module. The power module processes the power signal input from the power interface and supplies it to the split-screen controller, multiple video converters and multiple display interfaces respectively. The display interfaces are used to supply the power output from the power module to the display screen.

5. The multi-screen driver according to claim 4, characterized in that, It also includes a protocol chip, which is electrically connected to the power interface, the input interface and the power module respectively; When the protocol chip detects power input through the power interface, the protocol chip transmits the power input through the power module to the split-screen controller, multiple video converters and multiple display interfaces respectively. When the power interface is connected to a power source and the protocol chip detects that the input interface is receiving power, the protocol chip transmits the power input from the input interface to the split-screen controller, multiple video converters, and multiple display interfaces via the power module.

6. The multi-screen driver according to claim 5, characterized in that, The video converter and the display screen interface each have three; the power module has four, namely a first power module and three second power modules; the first power module and the second power module are both electrically connected to the protocol chip, the first power module is also electrically connected to the split screen controller, and each of the three second power modules is connected to a video converter and a display screen interface. The first power module includes a first power unit and a second power unit. The first power unit is electrically connected to the protocol chip and the second power unit, respectively. The second power unit is also electrically connected to the split-screen controller. The second power module includes a third power unit, a fourth power unit, and a fifth power unit. The third power unit is electrically connected to the protocol chip, the fourth power unit, and the fifth power unit, respectively. The fourth power unit is electrically connected to the video converter and the display interface, respectively. The fifth power unit is electrically connected to the display interface. The first power supply unit and the third power supply unit are both used to convert the first voltage output by the protocol chip into a second voltage and then output it. The second power supply unit is used to convert the second voltage into a third voltage and then output it to the split screen controller. The fourth power supply unit is used to convert the second voltage into a fourth voltage and then output it to the video converter and the display screen interface respectively. The fifth power supply unit is used to convert the second voltage into a fifth voltage and then output it to the display screen interface.

7. The multi-screen driver according to claim 4, characterized in that, It also includes an MCU electrically connected to the power module, as well as an indicator light and a power button electrically connected to the MCU. The MCU drives the indicator light to light up when the user operates the power button and the power module outputs power.

8. The multi-screen driver according to claim 1, characterized in that, It also includes a storage memory, which is electrically connected to the split-screen controller and is used to store configuration data required by the allocation controller during operation.

9. The multi-screen driver according to claim 1, characterized in that, Also includes: A first crystal oscillator and a first Flash memory electrically connected to the split-screen controller, and a second crystal oscillator, a second Flash memory, and control buttons electrically connected to each video converter.

10. The multi-screen driver according to claim 1, characterized in that, It also includes a gravity sensor electrically connected to the video converter. When the gravity sensor detects a change in the direction of gravity, it sends an electrical signal back to the video converter. The video converter then rotates the image on the display screen based on the electrical signal and through the display screen interface.

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