CN112540737B - Display capable of switching image sources and operating system - Google Patents

Abstract

A display capable of switching image sources includes a first transmission interface, a second transmission interface, a first peripheral interface, a system on chip, and a display panel. The first transmission interface is used to couple a first electronic device and receive a first image signal from the first electronic device. The second transmission interface is used to couple a second electronic device and receive a second image signal from the second electronic device. The first peripheral interface is used to couple a first peripheral device. The first peripheral device provides input information. The system on chip selects at least one of the first and second image signals according to the input information to generate a video signal. The system on chip generates a video signal according to at least one of the first and second image signals. The display panel presents a picture according to the video signal.

Description

Display and operating system with switchable image sources

Technical Field

The invention relates to a display, and in particular to a display capable of switching image sources.

Background technique

Generally speaking, a personal computer usually includes a screen, a host and multiple external devices (such as a mouse and a keyboard). Currently, many users have more than two personal computers. When a user needs to use multiple personal computers, the user needs to open multiple screens and use multiple sets of external devices to control multiple hosts, which greatly increases the inconvenience.

Summary of the invention

The present invention provides a display capable of switching image sources, comprising a first transmission interface, a second transmission interface, a first peripheral interface, a system on chip, and a display panel. The first transmission interface is used to couple a first electronic device and receive a first image signal from the first electronic device. The second transmission interface is used to couple a second electronic device and receive a second image signal from the second electronic device. The first peripheral interface is used to couple a first peripheral device. The first peripheral device provides input information. The system on chip selects at least one of the first and second image signals according to the input information to generate a video signal. The display panel presents a picture according to the video signal.

The present invention further provides an operating system, including a first electronic device, a second electronic device and a display. The first electronic device is used to provide a first image signal. The second electronic device is used to provide a second image signal. The display includes a first transmission interface, a second transmission interface, a first peripheral interface, a system single chip and a display panel. The first transmission interface is used to couple the first electronic device and receive the first image signal. The second transmission interface is used to couple the second electronic device and receive the second image signal. The first peripheral interface is used to couple a first peripheral device. The first peripheral device provides input information. The system single chip selects at least one of the first and second image signals according to the input information to generate a video signal. The display panel presents a picture according to the video signal.

The present invention is described in detail below with reference to the accompanying drawings and specific embodiments, but is not intended to limit the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of an operating system of the present invention.

FIG. 2 is a schematic diagram of an operation of the display of the present invention.

3A and 3B are schematic diagrams of selection screens of the present invention.

FIG. 4 is another schematic diagram of the operation of the display of the present invention.

FIG. 5A is a diagram showing a possible embodiment of a system on a chip of the present invention.

FIG. 5B is another embodiment of the system on a chip of the present invention.

FIG. 5C is another embodiment of the system on a chip of the present invention.

FIG. 5D is another embodiment of the system on a chip of the present invention.

Wherein, the reference numerals are:

100: operating system; 110: display;

120, 130: electronic devices; 140: peripheral devices;

IMG ₁ , IMG ₂ : image signal; FI, FI ₁ ~ FI ₃ : input information;

FO: output information; 111, 112: transmission interface;

113: System on a chip; 114-116: Peripheral interface;

117: display panel; PI ₁ , PI ₂ : image transmission port;

PD ₁ , PD ₂ : data transmission port; FS ₁ , FS ₂ : selection information;

118: specific area; 119: cursor;

141: Mouse; 142: Keyboard;

143: USB flash drive; 200, 400: selection screen;

410, 411, 412, 420, 421: options;

421: Brightness adjustment axis; 210: Touch screen;

510: control circuit; 520: switch circuit;

SC ₁ , SC ₂ : control signal; SI: video signal;

PA ₁ ~ PA ₄ : path; 521, 522: switch module;

511-514: controller; 530: hub;

531: Uplink port; 532~534: Downlink ports.

Detailed ways

The structural principle and working principle of the present invention are described in detail below in conjunction with the accompanying drawings:

In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the following embodiments are specifically cited and described in detail with the accompanying drawings. The present invention specification provides different embodiments to illustrate the technical features of different implementations of the present invention. Among them, the configuration of each element in the embodiment is for illustrative purposes and is not intended to limit the present invention. In addition, some repetitions of the figure numbers in the embodiments are for the purpose of simplifying the description and do not mean the correlation between different embodiments.

FIG. 1 is a schematic diagram of an operating system of the present invention. As shown in the figure, the operating system 100 includes a display 110, electronic devices 120, 130, and a peripheral device 140. In the present embodiment, the electronic devices 120 and 130 share the display 110 and the peripheral device 140. For example, when the electronic device 120 is coupled to the display 110, the display 110 presents a picture according to the image signal IMG1 provided by the electronic device 120. At this time, the electronic device 120 receives an input information FI from the peripheral device 140 through the display 110, or sends an output information FO to the peripheral device 140 through the display 110. When the electronic device 130 is coupled to the display 110, the display 110 presents a picture according to the image signal IMG2 provided by the electronic device 130. At this time, the electronic device 130 receives the input information FI from the peripheral device 140 through the display 110, or sends the output information FO to the peripheral device 140 through the display 110.

In other embodiments, when the display 110 presents a picture according to the image signal IMG1 provided by the electronic device 120, if the electronic device 130 is coupled to the display 110, the display 110 continues to present a picture according to the image signal IMG1 provided by the electronic device 120. In some embodiments, after the display 110 is powered on, if the display 110 finds that the electronic devices 120 and 130 provide image signals IMG1 and IMG2, respectively, the display 110 may select the image signal IMG1 or IMG2 according to a preset value. For example, when the preset value points to the electronic device 120, the display 110 presents a picture according to the image signal IMG1. However, when the preset value points to the electronic device 130, the display 110 presents a picture according to the image signal IMG2. In one possible embodiment, the preset value is stored in the display 110 in advance.

The present invention does not limit the types of the electronic devices 120 and 130. Any device that can output image signals can be used as the electronic device 120 or 130. In a possible embodiment, at least one of the electronic devices 120 and 130 is a host, a tablet, a notebook computer, or a smart phone.

In other embodiments, if the display 110 finds that the electronic devices 120 and 130 provide image signals IMG1 and IMG2 respectively, the display 110 presents a picture-by-picture screen according to the image signals IMG1 and IMG2. In one possible embodiment, if the electronic device 120 is coupled to the display 110 earlier, the display 110 presents a picture-by-picture screen according to the image signal IMG1 of the electronic device 120, and presents a picture-by-picture screen according to the image signal IMG2 of the electronic device 130. At this time, the electronic device 120 can communicate with the peripheral device 140 through the display 110, while the electronic device 130 cannot communicate with the peripheral device 140 through the display 110.

In some embodiments, if the display 110 finds that the electronic devices 120 and 130 provide image signals IMG1 and IMG2 respectively, the display 110 may present two screens of similar size. For example, the display 110 presents a first screen according to the image signal IMG1 and presents a second screen according to the image signal IMG2, wherein the first screen may be located on the left or right side of the second screen. In this embodiment, the display 110 includes transmission interfaces 111 and 112, a system on chip (SOC) 113, a peripheral interface 114, and a display panel 117.

The transmission interface 111 is used to couple to the electronic device 120 and receive the image signal IMG1. The present invention does not limit how the transmission interface 111 receives the image signal IMG1. In one possible embodiment, the transmission interface 111 receives the image signal IMG1 through a transmission line. In another possible embodiment, the transmission interface 111 includes a wireless transceiver (not shown). In this example, the transmission interface 111 receives the image signal IMG1 wirelessly.

In this embodiment, the transmission interface 111 includes an image transmission port PI1 and a data transmission port PD1. The image transmission port PI1 is used to receive the image signal IMG1. The data transmission port PD1 is used to transmit data. For example, the data transmission port PD1 may transmit input information FI to the electronic device 120 or receive output information FO from the electronic device 120. In other embodiments, the data transmission port PD1 may transmit a selection information FS1 generated by the electronic device 120 to the system single chip 113. In this example, the system single chip 113 acts according to the selection information FS1, such as adjusting the video signal SI, or sending a control signal (not shown) to adjust the state of the display panel 117, such as brightness. In other embodiments, the selection information FS1 may be integrated into the image signal IMG1. Therefore, the image transmission port PI1 can also transmit the selection information FS1.

The present invention does not limit the type of the image transmission port PI1. In a possible embodiment, the image transmission port PI1 is a High Definition Multimedia Interface (HDMI) connection port, a Display Port (DP) connection port, a Video Graphics Array (VGA) connection port, a Digital Visual Interface (DVI) connection port, or a Universal Serial Bus Type C (USB Type C) connection port.

In some embodiments, when the image transmission port PI1 is a USB Type C connection port, the USB Type C connection port can transmit data (such as output information FO, input information FI, and selection information FS1) in addition to the image signal IMG1, so the data transmission port PD1 can be omitted. In addition, the present invention does not limit the type of the data transmission port PD1. Any transmission port that can transmit data can be used as the data transmission port PD1. In a possible embodiment, the data transmission port PD1 is a USB connection port.

The transmission interface 112 is used to couple to the electronic device 130 and receive the image signal IMG2. In the present embodiment, the transmission interface 112 includes an image transmission port PI2 and a data transmission port PD2. The image transmission port PI2 is used to receive the image signal IMG2. The data transmission port PD2 is used to transmit data. Since the characteristics of the image transmission port PI2 and the data transmission port PD2 are similar to those of the image transmission port PI1 and the data transmission port PD1, they are not described in detail.

In some embodiments, the image transmission port PI2 may be the same as or different from the image transmission port PI1. For example, the image transmission ports PI1 and PI2 may both be HDMI connection ports. In other embodiments, the image transmission port PI1 is a DP connection port, and the image transmission port PI2 is an HDMI connection port. In addition, the present invention does not limit the number of transmission interfaces. In other embodiments, the display 110 has more transmission interfaces for receiving image signals from different electronic devices.

The peripheral interface 114 is used to couple the peripheral device 140. The peripheral interface 114 may receive the input information FI generated by the peripheral device 140 or provide the output information FO to the peripheral device 140 by wired or wireless means. The present invention does not limit the type of the peripheral interface 114. In one possible embodiment, the peripheral interface 114 includes a USB connection port. In addition, the present invention does not limit the number of peripheral interfaces. In other embodiments, the display 110 may have more peripheral interfaces for coupling more peripheral devices.

The system single chip 113 generates a video signal SI according to at least one of the image signals IMG1 and IMG2. The display panel 117 presents a picture according to the video signal SI. For example, when the electronic device 120 is coupled to the transmission interface 111 and the electronic device 130 is not coupled to the transmission interface 112, the system single chip 113 receives and processes the image signal IMG1 provided by the electronic device 120 to generate the video signal SI. Therefore, the picture presented by the display panel 117 is controlled by the electronic device 120.

The present invention does not limit how the system-on-chip 113 processes the image signal IMG1. In one possible embodiment, the system-on-chip 113 directly uses the image signal IMG1 as the video signal SI. In addition, the system-on-chip 113 further conducts a data path (not shown) between the data transmission port PD1 and the peripheral interface 114, so that the electronic device 120 can receive input information FI from the peripheral device 140, or provide output information FO to the peripheral device 140. In other embodiments, when the transmission interface 111 has a specific transmission port (such as USB Type C), the system-on-chip 113 conducts a data path between the data pin of the specific transmission port and the peripheral interface 114.

When the electronic device 120 is not coupled to the transmission interface 111 and the electronic device 130 is coupled to the transmission interface 112, the system single chip 113 receives and processes the image signal IMG2 to generate the video signal SI. In one possible embodiment, the system single chip 113 directly uses the image signal IMG2 as the video signal SI. At this time, the system single chip 113 conducts the data path (not shown) between the data transmission port PD2 and the peripheral interface 114. Therefore, the electronic device 130 can receive input information FI from the peripheral device 140, or provide output information FO to the peripheral device 140.

When the electronic devices 120 and 130 are both coupled to the transmission interfaces 111 and 112, the system chip 113 generates the video signal SI according to a preset value. For example, if the preset value points to the transmission interface 111, the system chip 113 generates the video signal SI according to the image signal IMG1, and conducts the data path between the transmission interface 111 and the peripheral interface 114. If the preset value points to the transmission interface 112, the system chip 113 generates the video signal SI according to the image signal IMG2, and conducts the data path between the transmission interface 112 and the peripheral interface 114. In other embodiments, the system chip 113 receives and integrates the image signals IMG1 and IMG2 according to the preset value. The display panel 117 presents a picture-in-picture display or two similarly sized and adjacent pictures according to the result of the integration of the system chip 113 (i.e., the video signal SI). In this example, only a single electronic device (such as 120 or 130) can communicate with the peripheral device 140 through the peripheral interface 114.

In other embodiments, the system on chip 113 may perform a specific action according to the selection information FS1 or FS2 sent by the electronic device 120 or 130. The specific action may be to switch the source of the image signal. For example, when the system on chip 113 generates the video signal SI according to the image signal IMG1 provided by the electronic device 120, if the electronic device 120 sends the selection information FS1, the system on chip 113 uses the image signal IMG2 from the electronic device 130 instead, and generates the video signal SI according to the image signal IMG2. At this time, the system on chip 113 cuts off the data path between the electronic device 120 and the peripheral device 140, and opens the data path between the electronic device 130 and the peripheral device 140. However, if the electronic device 130 has not yet been coupled to the transmission interface 112, the system on chip 113 may continue to generate the video signal SI according to the image signal IMG1. In one possible embodiment, the system on chip 113 adds a notification image component to the video signal SI to present a notification text on the display panel 117 to inform the user that the electronic device 130 has not yet connected to the transmission interface 112. In another possible embodiment, the system on chip 113 may not present a picture because the system on chip 113 has not received the image signal IMG2. However, as long as the electronic device 130 is coupled to the transmission interface 112, the system on chip 113 can immediately generate the video signal SI according to the image signal IMG2.

In other embodiments, the SoC 113 may control the state of the display panel 117, such as brightness or resolution, through the video signal SI or an additional control signal (not shown) according to the selection information FS1 or FS2 sent by the electronic device 120 or 130. In some embodiments, the SoC 113 may rotate the image presented by the display panel 117 according to the selection information FS1 or FS2 sent by the electronic device 120 or 130.

The present invention does not limit the formats of the selection information FS1 and FS2. Taking the selection information FS1 as an example, in a possible embodiment, the selection information FS1 is integrated into the image signal IMG1. The system single chip 113 can extract the selection information FS1 by decoding the image signal IMG1, and switch the source of the image signal or adjust the video signal SI according to the selection information FS1.

The present invention does not limit when the electronic devices 120 and 130 generate the selection information FS1 and FS2. Taking the electronic device 120 as an example, when a trigger event occurs, the electronic device 120 generates the selection information FS1 to the system single chip 113. The trigger event may come from the peripheral device 140. For example, if the peripheral device 140 is a keyboard, when the user presses the hot key (such as pressing the F2 key twice in succession), it indicates that a trigger event occurs. Therefore, the electronic device 120 generates the selection information FS1. In another possible embodiment, the trigger event may come from the electronic device 120 itself. For example, assume that the electronic device 120 is a smart phone. In this example, when the user draws a specific pattern on the electronic device 120, the electronic device 120 sends the selection information FS1.

FIG. 2 is a schematic diagram of an operation of the display of the present invention. In the present embodiment, the electronic devices 120 and 130 are both hosts, and the display 110 further includes peripheral interfaces 115 and 116. Since the characteristics of the peripheral interfaces 115 and 116 are similar to those of the peripheral interface 114, they are not described in detail. In the present embodiment, the peripheral interface 114 is coupled to the mouse 141. The peripheral interface 115 is coupled to the keyboard 142. The peripheral interface 116 is coupled to the USB flash drive 143.

For the convenience of explanation, it is assumed that the display 110 presents a picture according to the image signal IMG1. In this example, when the user moves the mouse 141, the mouse 141 generates an input information FI1. The electronic device 120 adjusts the image signal IMG1 according to the input information FI1 to change the position of the cursor 119. In addition, when the user presses the keyboard 142, the keyboard 142 generates an input information FI2. The electronic device 120 adjusts the image signal IMG1 according to the input information FI2 to present the text input by the user on the display panel 117. In addition, the USB flash drive 143 may provide an input information FI3 to the electronic device 120, or receive and store output information FO from the electronic device 120.

In this embodiment, the display panel 117 has a specific area 118. When the user moves the cursor 119 to the specific area 118 through the mouse 141 or the keyboard 142, and the cursor 119 stays in the specific area 118 for a preset time (such as 3 seconds), the specific area 118 presents a selection screen for the user to select an image input source. In other embodiments, the user may use certain specific keys, a specific pressing sequence, or a key combination of the keyboard 142 to make the specific area 118 present a selection screen. For example, when the user presses the F2 key of the keyboard 142 twice in succession, the specific area 118 presents a selection screen. In another possible embodiment, when the user presses the F2 key of the keyboard 142 twice in succession, the display 110 directly switches the image source.

3A and 3B are schematic diagrams of the selection screen of the present invention. As shown in the figure, the selection screen 300 includes an input source option 310. In other embodiments, the selection screen 300 has more options for the user to adjust the state of the display panel 117, such as brightness, resolution or rotate the screen presented by the display panel 117.

In FIG. 3A , when the user clicks on the input source option 310 , the source of the image signal can be changed. For example, when the user clicks on the option 311 , the system-on-chip 113 generates a video signal SI to the display panel 117 according to the image signal IMG1 from the electronic device 120 . At this time, the system-on-chip 113 conducts the data path between the electronic device 120 and each of the peripheral interfaces 114 to 116 , and cuts off the data path between the electronic device 130 and the peripheral interfaces 114 to 116 . If the user clicks on the option 312 , the system-on-chip 113 generates a video signal SI to the display panel 117 according to the image signal IMG2 provided by the electronic device 130 . At this time, the system-on-chip 113 conducts the data path between the electronic device 130 and each of the peripheral interfaces 114 to 116 , and cuts off the data path between the electronic device 120 and the peripheral interfaces 114 to 116 .

In other embodiments, if the electronic device 130 has not been coupled to the transmission interface 112 and the user has selected the option 312, the system on chip 113 maintains the data path between the electronic device 120 and each of the peripheral interfaces 114-116. Therefore, the system on chip 113 continues to generate the video signal SI to the display panel 117 according to the image signal IMG1. In one possible embodiment, the system on chip 113 adjusts the video signal SI to present a notification screen on the display panel 117 to notify the user that the electronic device 130 has not been coupled to the transmission interface 112. In another possible embodiment, if the electronic device 130 has not been coupled to the transmission interface 112 and the user has selected the option 312, the display panel 117 may present a black screen until the electronic device 130 is coupled to the transmission interface 112.

In other embodiments, the selection screen 300 further includes a brightness option 320. In FIG. 3B , when the user clicks the brightness option 320, the brightness of the display panel 117 can be changed. For example, when the user moves the brightness adjustment axis 321 to the right, the brightness of the display panel 117 increases. When the user moves the brightness adjustment axis 321 to the left, the brightness of the display panel 117 decreases.

The present invention does not limit the size of the selection screen 300. In one possible embodiment, when the resolution of the display panel 117 increases, the images presented by the display panel 117 become smaller. At this time, the selection screen 300 has a larger area to facilitate the user to click. When the resolution of the display panel 117 decreases, the images presented by the display panel 117 become larger. At this time, the selection screen 300 has a smaller area to avoid the selection screen 300 occupying most of the screen.

FIG. 2 is another operation diagram of the display of the present invention. In this embodiment, the electronic device 120 is a smart phone having a touch screen 410. In addition, the electronic device 130 is a host. In this example, the transmission interfaces 111 and 112 may both be USB Type C connection ports, but this is not intended to limit the present invention.

When the user opens a switching application of the electronic device 120, the touch screen 410 presents a selection screen 400 for the user to switch the source of the image signal. At this time, the screen of the display panel 117 may be synchronized with the selection screen 400 of the touch screen 410. In this embodiment, the electronic device 120 detects the track pattern drawn by the user on the touch screen 410, and provides a selection information FS1 to the display 110 according to the detection result. The system single chip (not shown) in the display 110 selects the source of the image signal according to the selection information FS1.

For example, when the user's finger touches the touch screen 410 and slides to the right, the electronic device 120 sends a selection message FS1. At this time, since the selection message FS1 meets a first preset condition, the display 110 selects the image signal IMG2 provided by the electronic device 130 and presents the screen according to the image signal IMG2. In addition, the display 110 conducts the data path between the transmission interface 112 and each of the peripheral interfaces 114-116. Therefore, the user can operate the electronic device 130 through the mouse 141 and the keyboard 142. In addition, the electronic device 130 can also access the USB flash drive 143.

In other embodiments, when the user's finger contacts the touch screen 410 and slides upward, the electronic device 120 sends a selection message FS1 according to the user's gesture. At this time, since the selection message FS1 meets a second preset condition, the display 110 increases the brightness of the display panel 117. However, if the user's finger contacts the touch screen 410 of the electronic device 120 and slides downward, the display 110 reduces the brightness of the display panel 117. In other implementations, the user can adjust the screen presented by the display panel 117 through the selection screen 400. For example, when the user's finger contacts the touch screen 410 of the electronic device 120 and slides to the lower right, the screen presented by the display panel 117 may be rotated 90 degrees to the right.

FIG5A is a possible embodiment of the system on chip 113 of the present invention. As shown in the figure, the system on chip 113 includes a control circuit 510 and a switch circuit 520. The control circuit 510 generates control signals SC1 and SC2 according to the voltage potentials of the transmission interfaces 111 and 112 to control the switch circuit 520. In a possible embodiment, the control circuit 510 is a scaler.

In the present embodiment, the control circuit 510 determines whether the electronic devices 120 and 130 provide the image signals IMG1 and IMG2 according to the voltage potentials of the image transmission ports PI1 and PI2, and generates the control signals SC1 and SC2 according to the determination result. For example, when the image transmission port PI1 does not receive the image signal IMG1, the voltage potential of a specific pin of the image transmission port PI1 is equal to an initial value. When the image transmission port PI1 receives the image signal IMG1, the voltage potential of the specific pin of the image transmission port PI1 is not equal to the initial value. Therefore, the control circuit 510 can know whether the electronic devices 120 and 130 provide the image signals IMG1 and IMG2 according to the voltage potentials of the specific pins of the image transmission ports PI1 and PI2.

In other embodiments, the control circuit 510 receives the selection information FS1 and FS2 through the data transmission ports PD1 and PD2, and adjusts the control signals SC1 and SC2 according to the selection information FS1 and FS2. In some embodiments, the control circuit 510 further adjusts the video signal SI according to the selection information FS1 and FS2.

The switch circuit 520 is coupled to the transmission interfaces 111 and 112, and according to the control signal SC1, conducts at least one of the image path PA1 between the transmission interface 111 and the control circuit 510 and the image path PA2 between the transmission interface 112 and the control circuit 510. In addition, according to the control signal SC2, the switch circuit 520 conducts the data path PA3 between the transmission interface 111 and the peripheral interface 114 or conducts the data path PA4 between the transmission interface 112 and the peripheral interface 114.

The present invention does not limit the architecture of the switch circuit 520. In this embodiment, the switch circuit 520 includes a switch module 521. The switch module 521 controls the image paths PA1 and PA2 according to the control signal SC1. The image path PA1 is coupled between the transmission interface 111 and the control circuit 510. The image path PA2 is coupled between the transmission interface 112 and the control circuit 510.

When the control signal SC1 meets a first state (e.g., the potential of the control signal SC1 is equal to a first voltage), the switch module 521 conducts the image path PA1 and does not conduct the image path PA2. Therefore, the image path PA1 transmits the image signal IMG1 to the control circuit 510. When the control signal SC1 meets a second state (e.g., the potential of the control signal SC1 is equal to a second voltage), the switch module 521 conducts the image path PA2 and does not conduct the image path PA1. Therefore, the image path PA2 transmits the image signal IMG2 to the control circuit 510. In other embodiments, when the control signal SC1 meets a third state (e.g., the potential of the control signal SC1 is equal to a third voltage), the switch module 521 conducts the image paths PA1 and PA2 to provide the image signals IMG1 and IMG2 to the control circuit 510.

In other embodiments, the switch circuit 520 further includes a switch module 522. The switch circuit 520 includes a switch module 521. The switch module 521 controls the data paths PA3 and PA4 according to the control signal SC2. The data path PA3 is coupled between the transmission interface 111 and the peripheral interface 114. The data path PA4 is coupled between the transmission interface 112 and the peripheral interface 114.

When the control signal SC2 meets a first state (e.g., the potential of the control signal SC2 is equal to the first voltage), the switch module 522 conducts the data path PA3. Therefore, the electronic device 120 can receive input information FI from the peripheral interface 114, or provide output information FO to the peripheral interface 114. When the control signal SC2 meets a second state (e.g., the potential of the control signal SC2 is equal to the second voltage), the switch module 522 conducts the data path PA4. Therefore, the electronic device 130 can receive input information FI from the peripheral interface 114, or provide output information FO to the peripheral interface 114.

For ease of explanation, FIG. 5A only shows the electronic devices 120 and 130. Therefore, the switch module 522 provides two data paths (i.e., PA3 and PA4). In other embodiments, when the system single chip 113 is coupled to more electronic devices, the switch module 522 provides more data paths. In addition, the switch circuit 520 may have more switch modules 522. In this example, each switch module 522 is coupled between a peripheral interface and multiple electronic devices.

FIG5B is another embodiment of the system on chip 113 of the present invention. In this embodiment, the system on chip 113 includes controllers 511, 512 and switch modules 521, 522. The controller 511 generates a control signal SC1 according to a trigger signal ST to instruct the switch module 521 to output at least one of the image signals IMG1 and IMG2. In some embodiments, the controller 511 may decode the image signal IMG1 or IMG2 to obtain the selection information FS1 or FS2, and then adjust the video signal SI according to the selection information FS1 or FS2.

The controller 512 detects the voltage potential of the image pins of the transmission interfaces 111 and 112 to determine whether the electronic devices 120 and 130 provide the image numbers IMG1 and IMG2, and generates a trigger signal ST and a control signal SC2 according to the determination result. For example, when the electronic device 120 is coupled to the transmission interface 111. The controller 512 notifies the controller 511 through the trigger signal ST. In this example, the controller 511 generates a control signal SC1 to command the switch module 521 to conduct the image path PA1. At this time, the switch module 521 does not conduct the image path PA2. In addition, the controller 512 commands the switch module 522 to conduct the data path PA3 and not conduct the data path PA4 through the control signal SC2. Therefore, the electronic device 120 receives the input information FI from the peripheral interface 114 through the data path PA3, or provides the output information FO to the peripheral interface 114.

In other embodiments, when the electronic device 130 is coupled to the transmission interface 111, the controller 512 informs the controller 511 through the trigger signal ST. Therefore, the controller 511 instructs the switch module 521 to conduct the image path PA2. At this time, the switch module 521 does not conduct the image path PA1. In addition, the controller 512 instructs the switch module 522 to conduct the data path PA4 and not conduct the data path PA3 through the control signal SC2. Therefore, the electronic device 130 receives the input information FI from the peripheral interface 114 through the data path PA4, or provides the output information FO to the peripheral interface 114.

In one possible embodiment, the controller 511 and the switch module 521 are integrated into a first integrated circuit (IC). In this example, the controller 512 and the switch module 522 are integrated into a second integrated circuit. The first and second integrated circuits operate independently. In another possible embodiment, the controller 512 receives the selection information FS1 or FS2 and provides it to the controller 511 through another transmission line (not shown).

FIG. 5C is another embodiment of the system-on-chip 113 of the present invention. FIG. 5C is similar to FIG. 5B, except that the controller 513 detects the voltage potential of the image pins of the transmission interfaces 111 and 112 to determine whether the transmission interfaces 111 and 112 have received the image signal. Taking the transmission interface 111 as an example, when the voltage potential of the image pin of the transmission interface 111 is not equal to an initial value, it means that the transmission interface 111 has received the image signal IMG1. Therefore, the controller 513 instructs the switch module 521 to conduct the image path PA1 through the control signal SC1. At this time, the switch module 521 may not conduct the image path PA2. In other embodiments, if the transmission interfaces 111 and 112 receive the image signals IMG1 and IMG2 respectively, the controller 513 may instruct the switch module 521 to conduct the image paths PA1 and PA2 through the control signal SC1.

In other examples, when the controller 513 learns that the transmission interface 111 has received the image signal IMG1, the controller 513 triggers the controller 514, so that the controller 514 instructs the switch module 522 to turn on the data path PA3 through the control signal SC2. Similarly, when the controller 513 learns that the transmission interface 112 has received the image signal IMG2, the controller 513 triggers the controller 514, so that the controller 514 instructs the switch module 522 to turn on the data path PA4 through the control signal SC2. In some embodiments, when the controller 513 learns that the transmission interfaces 111 and 112 have received the image signals IMG1 and IMG2, respectively, the controller 513 may request the controller 514 to turn on the data path PA3 or PA4 according to a preset value. In this embodiment, the controller 514 provides the selection information FS1 and FS2 of the electronic devices 120 and 130 to the controller 513. The controller 513 modifies the video signal SI according to the selection information FS1 or FS2.

FIG. 5D is another embodiment of the system-on-chip 113 of the present invention. FIG. 5D is similar to FIG. 5C, except that the switch module 523 is coupled between the controller 514 and a hub 530. The hub 530 has an uplink port (UFP) 531 and downlink ports (DFP) 532-534. The uplink port 531 is coupled to the switch module 523. The downlink ports 532-534 are respectively coupled to the peripheral interfaces 114-116. The switch module 523 provides data paths PA5 and PA6. The data path PA5 is coupled between the transmission interface 111 and the uplink port 531. The data path PA6 is coupled between the transmission interface 112 and the uplink port 531.

When the electronic device 120 is coupled to the transmission interface 111, the controller 513 triggers the controller 514. The controller 514 requests the switch module 523 to conduct the data path PA5 through the control signal SC2. At this time, the switch module 523 does not conduct the data path PA6.

When the electronic device 130 is coupled to the transmission interface 112, the controller 514 issues a control signal SC2. The switch module 523 conducts the data path PA6 and blocks the data path PA5 according to the issued control signal SC2.

Unless otherwise defined, all terms (including technical and scientific terms) herein are generally understood by those with ordinary knowledge in the technical field to which the present invention belongs. In addition, unless otherwise expressly stated, the definition of a term in a general dictionary should be interpreted as consistent with the meaning in the article in the relevant technical field, and should not be interpreted as an ideal state or overly formal tone.

Of course, the present invention may have many other embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art may make various corresponding changes and modifications based on the present invention, but these corresponding changes and modifications should all fall within the scope of protection of the claims attached to the present invention.

Claims (20)

1. A switchable image source display comprising:

The first transmission interface is used for coupling with a first electronic device and receiving a first image signal from the first electronic device;

a second transmission interface for coupling to a second electronic device and receiving a second image signal from the second electronic device;

the first peripheral interface is used for being coupled with a first peripheral device, wherein the first peripheral device provides an input message;

A system on a chip for selecting at least one of the first and second image signals according to the input information to generate a video signal; and

A display panel for displaying a picture according to the video signal;

The second transmission interface is an USB Type C connection port, and the USB Type C connection port transmits a first output message from the second electronic device to the first peripheral device, and transmits the input message from the first peripheral device to the second electronic device.

2. The display of claim 1, wherein when the system single chip selects the first image signal for generating the video signal, the first electronic device receives the input information through the first transmission interface and generates a selection message according to the input information, and the system single chip receives the selection message through the first transmission interface and instructs the display panel to display a selection screen according to the selection message.

3. The switchable image source display of claim 2, wherein the system on chip performs a specific action when a specific option of the selection screen is selected.

4. The switchable image source display of claim 3, wherein the specific action is to generate the video signal based on the second image signal and to conduct a data path between the first peripheral interface and the second transmission interface.

5. The display of claim 3, wherein the specific action is adjusting the brightness or resolution of the display panel.

6. The display of claim 2, wherein the display panel has a specific area for presenting the selection screen, the selection screen has a first option and a second option, the system single chip generates the video signal according to the first image signal when the first option is clicked, and the system single chip generates the video signal according to the second image signal when the second option is clicked.

7. The display of claim 6, wherein the selection screen further has a third option, and the system on chip adjusts the brightness of the display panel when the third option is clicked.

8. The switchable image sourced display of claim 1 wherein the system on a single die comprises:

A control circuit for generating a control signal according to the voltage potential of the first and second transmission interfaces; and

And a switch circuit coupled to the first and second transmission interfaces for receiving the first and second image signals and outputting at least one of the first and second image signals to the control circuit according to the control signal, so that the control circuit generates the video signal according to at least one of the first and second image signals.

9. The switchable image source display of claim 8 wherein the switching circuit provides the input information to the first electronic device via the first transmission interface when the switching circuit provides the first image signal to the control circuit, and provides the input information to the second electronic device via the second transmission interface when the switching circuit provides the second image signal to the control circuit.

10. The switchable image source display of claim 9, further comprising:

a second peripheral interface for coupling to a second peripheral device,

When the switch circuit provides the first image signal to the control circuit and the first electronic device provides output information to the first transmission interface, the switch circuit provides the output information to the second peripheral device.

11. The switchable image source display of claim 10, further comprising:

The hub is provided with an uplink port, a first downlink port and a second downlink port, wherein the uplink port is coupled with the switch circuit, the first downlink port is coupled with the first peripheral interface, and the second downlink port is coupled with the second peripheral interface.

12. The switchable image source display of claim 1, wherein the first transport interface is a universal serial bus Type C (USB Type C) connection port.

13. The switchable image source display of claim 1, wherein the first transmission interface comprises a first image transmission port for receiving the first image signal, and the second transmission interface comprises a second image transmission port for receiving the second image signal, the first image transmission port being of the same type as or different from the second image transmission port.

14. The switchable image source display of claim 1, wherein the system on chip takes the first image signal as the video signal when the first transmission interface is coupled to the first electronic device and the second transmission interface is not coupled to the second electronic device, and takes the second image signal as the video signal when the first transmission interface is not coupled to the first electronic device and the second transmission interface is coupled to the second electronic device.

15. The display of claim 1, wherein when the first and second transmission interfaces are coupled to the first and second electronic devices, respectively, and the first peripheral interface does not receive the input information of the first peripheral device, the system on a chip uses the first or second image signal as the video signal according to a predetermined value.

16. The display of claim 8, wherein when the first and second electronic devices are coupled to the first and second transmission interfaces, respectively, and the first peripheral interface does not receive the input information of the first peripheral device, the control circuit integrates the first and second image signals to generate a third image, and the display panel presents a sub-picture according to the third image.

17. An operating system, comprising:

a first electronic device for providing a first image signal;

a second electronic device for providing a second image signal; and

A display, comprising:

a first transmission interface for coupling the first electronic device and receiving the first image signal;

a second transmission interface for coupling with the second electronic device and receiving the second image signal;

the first peripheral interface is used for being coupled with a first peripheral device, wherein the first peripheral device provides an input message;

A system on a chip for selecting at least one of the first and second image signals according to the input information to generate a video signal; and

A display panel for displaying a picture according to the video signal;

The second transmission interface is an USB Type C connection port, and the USB Type C connection port transmits a first output message from the second electronic device to the first peripheral device, and transmits the input message from the first peripheral device to the second electronic device.

18. The operating system of claim 17 wherein when the system microchip selects the first image signal for generating the video signal, the first electronic device receives the input information via the first transmission interface and generates a selection message according to the input information, and the system microchip receives the selection message via the first transmission interface and instructs the display panel to display a selection screen according to the selection message.

19. The operating system of claim 18 wherein the system microchip generates the video signal based on the first image signal when a first option of the selection screen is selected and generates the video signal based on the second image signal when a second option of the selection screen is selected.

20. The operating system of claim 19 wherein the system on chip adjusts the brightness of the display panel when a third option of the selection screen is selected.