A display system and setting adjustment method thereof

Abstract

The present invention discloses a display system and an adjustment method thereof. The display system includes a plurality of display devices connected in series and in communication. The system is characterized in that when one of the plurality of display devices is selected as a first display device, the first display device has a first hot-swappable pin. The first display device receives a setting adjustment instruction and controls the potential of the first hot-swappable pin to a preset potential according to the setting adjustment instruction. The other display devices also control the potential of their respective hot-swappable pins to a preset potential in accordance with the potential of the first hot-swappable pin, thereby enabling their respective interrupt pins to enter a synchronous setting mode. The first display device receives setting data and transmits the setting data to the other display devices for setting. The present invention can reduce the time for users to adjust each display device in the display system one by one, and can also avoid setting differences between display devices, thereby facilitating user operation and improving the user experience.

Description

Technical Field

[0001] The present invention relates to a display system and a setting adjustment method thereof, and in particular to a display system and a setting adjustment method thereof capable of synchronously adjusting a plurality of display devices connected in series. Background Art

[0002] Ultra-large displays (displays significantly larger than conventional monitors) are often required in conference rooms, public spaces, command centers, and other settings. These displays typically utilize tiled displays, which consist of multiple conventional monitors spliced together. An image splitter divides the image signal into several parts, which are then transmitted to each conventional monitor for display. For example, nine identically sized displays might be spliced together to form a 3x3 video wall. Adjusting the display parameters of each screen in the video wall typically requires adjusting each screen individually. This is not only cumbersome but also creates the risk that the parameters of individual screens may be inconsistent with those of others, affecting the overall display quality of the video wall. Summary of the Invention

[0003] The present invention provides a display system and a setting adjustment method thereof to solve the above-mentioned problem.

[0004] In order to achieve the above-mentioned objectives, the present invention provides a display system, which includes multiple display devices connected in series and in communication. When one of the multiple display devices is selected as a first display device, the first display device has a first hot-swappable pin. The first display device receives a setting adjustment instruction and controls the potential of the first hot-swappable pin to a preset potential according to the setting adjustment instruction; the other display devices also control the potential of their respective hot-swappable pins to the preset potential in accordance with the potential of the first hot-swappable pin, thereby enabling their respective interrupt pins to enter a synchronous setting mode; the first display device receives setting data and transmits the setting data to the other display devices for setting, wherein the first hot-swappable pin has a default low potential and a default high potential, and the preset potential is a blank area between the default low potential and the default high potential.

[0005] As an optional technical solution, the default low potential is between the first potential and the second potential, and the default high potential is between the third potential and the fourth potential, wherein the first potential is less than the second potential, and the third potential is less than the fourth potential; the preset potential is the average value of the second potential and the third potential.

[0006] As an optional technical solution, the first display device has a first I / O pin and a first resistor, the first resistor is electrically connected to the first I / O pin and the first hot plug pin, the first display device pulls down the first I / O pin according to the setting adjustment instruction, and at the same time controls the potential of the first hot plug pin to the preset potential through the first resistor.

[0007] As an optional technical solution, the display system includes a first display device and a second display device connected to each other, the second display device having a second hot plug pin, a second interrupt pin and a second potential detection device, the second potential detection device electrically connected to the second hot plug pin and the second interrupt pin, the first hot plug pin and the second hot plug pin are communicatively connected; the second display device controls the potential of the second hot plug pin to be at the preset potential in accordance with the potential of the first hot plug pin, and the second potential detection device enables the second interrupt pin when detecting that the potential of the second hot plug pin is at the preset potential, and the second display device enters the synchronization setting mode.

[0008] As an optional technical solution, the display system further includes a third display device, the first display device, the second display device and the third display device are connected in sequence, the third display device has a third hot plug pin, a third interrupt pin and a third potential detection device, the third potential detection device is electrically connected to the third hot plug pin and the third interrupt pin, and the third hot plug pin is communicatively connected to the second hot plug pin; the third display device controls the potential of the third hot plug pin to be at the preset potential in accordance with the potential of the second hot plug pin, and the third potential detection device enables the third interrupt pin when detecting that the potential of the third hot plug pin is at the preset potential, and the third display device enters the synchronization setting mode.

[0009] As an optional technical solution, the first display device receives the setting data and transmits the setting data to the second display device, and the second display device receives the setting data and transmits the setting data to the third display device.

[0010] As an optional technical solution, the display system further includes a third display device, which is connected to the first display device and the second display device in sequence. The third display device has a third hot-swappable pin, a third interrupt pin and a third potential detection element. The third potential detection element is electrically connected to the third hot-swappable pin and the third interrupt pin, and the third hot-swappable pin is communicatively connected to the first hot-swappable pin. The third display device controls the potential of the third hot-swappable pin to be at the preset potential in accordance with the potential of the first hot-swappable pin. When the third potential detection element detects that the potential of the third hot-swappable pin is at the preset potential, it enables the third interrupt pin, and the third display device enters the synchronization setting mode.

[0011] In addition, the present invention also provides a setting adjustment method for a display system, wherein the display system includes a plurality of display devices connected in series and in communication, and the setting adjustment method includes:

[0012] Step A, selecting one of the plurality of display devices as a first display device, the first display device having a first hot-swap pin, and the first display device receiving a setting adjustment instruction;

[0013] Step B: the first display device controls the potential of the first hot-swap pin to a preset potential according to the setting adjustment, wherein the first hot-swap pin has a default low potential and a default high potential, and the preset potential is a blank area between the default low potential and the default high potential;

[0014] Step C, each of the other display devices also controls its own hot-swap pin to the preset potential in accordance with the potential of the first hot-swap pin of the first display device, thereby enabling its own interrupt pin to enter a synchronous setting mode; and

[0015] In step D, the first display device receives the setting data and transmits the setting data to other display devices for setting.

[0016] As an optional technical solution, the default low potential is between the first potential and the second potential, and the default high potential is between the third potential and the fourth potential, wherein the first potential is less than the second potential, and the third potential is less than the fourth potential; the preset potential is the middle value between the second potential and the third potential.

[0017] As an optional technical solution, the display system includes a first display device and a second display device connected to each other, the second display device having a second hot plug pin and a second interrupt pin, and the first hot plug pin is communicatively connected to the second hot plug pin; in step C, in accordance with the potential of the first hot plug pin, the potential of the second hot plug pin is controlled to the preset potential, so that the second interrupt pin is enabled, and the second display device enters the synchronization setting mode.

[0018] As an optional technical solution, the display system further includes a third display device, the first display device, the second display device and the third display device are connected in sequence, the third display device has a third hot plug pin and a third interrupt pin, and the third hot plug pin is communicatively connected to the second hot plug pin; in step C, in accordance with the potential of the second hot plug pin, the potential of the third hot plug pin is controlled to the preset potential, thereby enabling the third interrupt pin and the third display device entering the synchronization setting mode.

[0019] As an optional technical solution, in step D, the first display device receives the setting data and transmits the setting data to the second display device, and the second display device receives the setting data and transmits the setting data to the third display device.

[0020] As an optional technical solution, the display system further includes a third display device, which is connected to the first display device and the second display device in sequence. The third display device has a third hot-swappable pin, a third interrupt pin and a third potential detection element. The third potential detection element is electrically connected to the third hot-swappable pin and the third interrupt pin, and the third hot-swappable pin is communicatively connected to the first hot-swappable pin. In step C, the potential of the third hot-swappable pin is controlled to the preset potential in accordance with the potential of the first hot-swappable pin, so that the third interrupt pin is enabled and the third display device enters the synchronization setting mode.

[0021] The display system and setting adjustment method of the present invention utilizes inter-display device communication connections to cause the other display devices to enter a synchronized setting mode when a user arbitrarily selects a display device as the current display device. Thus, when a user inputs setting data into the current display device, the current display device can simultaneously transmit the setting data to the other display devices. This allows all display devices in the display system to receive the same settings and complete setting adjustments synchronously. This reduces the time required for the user to adjust each display device in the display system one by one, avoids setting differences between display devices, facilitates user operation, and enhances the user experience.

[0022] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments, but this does not limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1A is a schematic diagram of a display system according to a first embodiment of the present invention;

[0024] Figure 1B is a schematic diagram of a display system according to a second embodiment of the present invention;

[0025] Figure 1C is a schematic diagram of a display system according to a third embodiment of the present invention;

[0026] Figure 2A is a block diagram of a display system according to a first embodiment of the present invention;

[0027] Figure 2B is a block diagram of a display system according to a second embodiment of the present invention;

[0028] Figure 2C is a block diagram of a display system according to a third embodiment of the present invention;

[0029] Figure 3A is a schematic diagram of a first display device and a second display device in a first embodiment of the present invention;

[0030] Figure 3B is a schematic diagram of a first display device, a second display device, and a third display device in a second embodiment of the present invention;

[0031] Figure 3C is a schematic diagram of a first display device, a second display device, and a third display device in a third embodiment of the present invention;

[0032] Figure 4 The figure is a flow chart of the setting adjustment method of the display system of the present invention. DETAILED DESCRIPTION

[0033] In order to provide a further understanding of the purpose, structure, features and functions of the present invention, the following detailed description is given in conjunction with the embodiments.

[0034] Please refer to Figures 1A to 4 , Figure 1A 1B is a schematic diagram of a display system according to a first embodiment of the present invention; FIG. 1B is a schematic diagram of a display system according to a second embodiment of the present invention; Figure 1C is a schematic diagram of a display system according to a third embodiment of the present invention; Figure 2A FIG2 is a block diagram of a display system according to a first embodiment of the present invention; FIG2B is a block diagram of a display system according to a second embodiment of the present invention; Figure 2C is a block diagram of a display system according to a third embodiment of the present invention; Figure 3A is a schematic diagram of a first display device and a second display device in a first embodiment of the present invention; Figure 3B is a schematic diagram of a first display device, a second display device, and a third display device in a second embodiment of the present invention; Figure 3C is a schematic diagram of a first display device, a second display device, and a third display device in a third embodiment of the present invention; Figure 4 The figure is a flow chart of the setting adjustment method of the display system of the present invention.

[0035] The display system of the present invention includes multiple display devices connected in series and in communication. During use, when one of the multiple display devices is selected as a first display device (i.e., the current display device that can be directly operated), the first display device has a first hot-swappable pin. The first display device receives a configuration adjustment instruction and controls the voltage of the first hot-swappable pin to a preset voltage according to the configuration adjustment instruction. The other display devices also control the voltage of their respective hot-swappable pins to the preset voltage in accordance with the voltage of the first hot-swappable pin, thereby enabling their respective interrupt pins to enter a synchronous configuration mode. The first display device receives configuration data and transmits the configuration data to the other display devices for configuration. After configuration is completed, the multiple display devices return to normal operating mode. The first hot-swappable pin has a default low voltage and a default high voltage, and the default voltage is a blank area between the default low voltage (logic low) and the default high voltage (logic high).

[0036] like Figure 1A As shown, the display system 1000 may include a host 1200 and two display devices. The host is used to provide image signals to each display device, one of which is selected as the first display device 100, and the other is selected as the other display device, such as defined as the second display device 200. Figure 1B As shown, the display system 1000' may include three display devices, wherein the display device adjacent to the host 1200 is selected as the first display device 100, and the remaining two display devices are defined as the second display device 200 and the third display device 300. Figure 1C As shown, the display system 1000" may include three display devices, the second display device arranged in sequence is selected as the first display device 100, and the remaining two display devices are defined as other display devices, such as the second display device 200 and the third display device 300. In actual operation, the display system may include any number of display devices, and is not limited to this. It should be noted that Figures 1A to 1C The display devices in the central display system are arranged in sequence, but this is not limited to the actual operation. The display devices can be connected in series to form various shapes.

[0037] The present invention adds a new control voltage value (i.e., a preset voltage) in the middle protection zone between the default low voltage and the default high voltage of the old control mode as the trigger voltage value for the synchronous setting adjustment. In the present invention, the default low voltage is between the first voltage (min.Logic Low voltage) and the second voltage (max.Logic Low voltage), and the default high voltage is between the third voltage (min.Logic High voltage) and the fourth voltage (max.Logic High voltage), wherein the first voltage is less than the second voltage, and the third voltage is less than the fourth voltage. The preset voltage is the middle value between the second voltage and the third voltage. In one embodiment, the preset voltage is [(min.Logic High voltage) + (max.Logic Low voltage)] / 2, which is the center voltage value. In this case, the preset voltage is a single value; in another embodiment, the preset voltage has a value range between the second voltage and the third voltage.

[0038] Typically, the voltage levels of hot-swap pins in display devices are defined as follows: 0-0.8V is the default low voltage, with the first voltage being 0V and the second voltage being 0.8V; 2.0-5.0V is the default high voltage, with the third voltage being 2.0V and the fourth voltage being 5.0V. The default voltage can be the average of the second voltage (0.8V) and the third voltage (2.0V) (0.8 + 2.0) / 2 = 1.4V. In the present invention, 1.4 + / - 0.3V is used as the logic low voltage for synchronization adjustment, i.e., 1.4 + / - 0.3V is used as the default voltage. In this case, the default voltage has a range of values.

[0039] In the display system of the present invention, when any display device is selected as the first display device 100 (i.e., the current display device), the potential of the first hot-swap pin 101 of the first display device 100 is controlled at a preset potential. In response to the potential of the first hot-swap pin 101, the other display devices also control the potential of their respective hot-swap pins at the preset potential, thereby enabling their respective interrupt pins to enter a synchronous setting mode. In this way, when a user inputs setting data into the first display device 100, the first display device 100 can simultaneously transmit the setting data to the other display devices, so that the display devices connected in series in the display system can all receive the same settings and complete the setting adjustment synchronously. This reduces the time required for the user to adjust each display device in the display system one by one, and also avoids setting differences between the display devices, facilitating user operation and improving the user experience.

[0040] The present invention adds a hot-swap pin voltage level definition to serve as a trigger signal for communication between display devices when synchronization adjustment is required. That is, the display system of the present invention determines whether synchronization is being executed based on the voltage level of the hot-swap pin of the selected first display device 100. This voltage level represents the blank area between the non-default high and low units.

[0041] In the present invention, the aforementioned voltage level definition of the added hot-swap pin can be achieved through circuit design. Figures 2A to 2C As shown, the first display device 100 has a first I / O pin 102 and a first resistor 103. The first resistor 103 is electrically connected to the first I / O pin 102 and the first hot-swap pin 101. Upon receiving the setting adjustment command, the first display device 100 pulls the first I / O pin 102 low, while simultaneously controlling the potential of the first hot-swap pin 101 to the aforementioned predetermined potential via the first resistor 103.

[0042] In this embodiment, Figures 2A to 3C As shown, in addition to the first hot-swap pin 101, the first I / O pin 102, and the first resistor 103, the first display device 100 also has a first interrupt pin 104 and a first potential detector 105. The first potential detector 105 is electrically connected to the first hot-swap pin 101 and the first interrupt pin 104. Upon receiving a setting adjustment command, the first display device 100 controls the potential of the first hot-swap pin 101 to a predetermined potential. When the first potential detector 105 detects that the potential of the first hot-swap pin 101 is at the predetermined potential, it enables the first interrupt pin 104 and generates an interrupt signal. However, since the first display device 100 is the initiator of the synchronous setting adjustment, it can ignore this interrupt signal.

[0043] In actual operation, the first display device 100 may include a first circuit board (not shown) and a first processing unit 120. The first processing unit 120 is disposed on the first circuit board and may be a microcontroller unit (MCU). The first hot-swap pin 101, the first I / O pin 102, and the first interrupt pin 104 may be disposed on the first processing unit 120. The first resistor 103 and the first voltage detector 105 may be disposed on the first circuit board together with the first processing unit 120 or may be integrated with the first processing unit 120.

[0044] like Figure 2A and Figure 3AAs shown, the display system 1000 includes a first display device 100 and a second display device 200 connected to each other. The second display device 200 has a second hot plug pin 201, a second interrupt pin 204, and a second potential detection element 205. The second potential detection element 205 is electrically connected to the second hot plug pin 201 and the second interrupt pin 204. The first hot plug pin 101 and the second hot plug pin 201 are communicatively connected. In actual operation, the communication connection between the first hot plug pin 101 and the second hot plug pin 201 can be achieved via a wire, but this is not limited to this. After receiving the setting adjustment command, the first display device 100 controls the potential of the first hot plug pin 101 to the aforementioned preset potential. Since the first hot plug pin 101 of the first display device 100 is communicatively connected to the second hot plug pin 201 of the second display device 200, the second display device 200 also controls the potential of the second hot plug pin 201 to the preset potential in accordance with the potential of the first hot plug pin 101. At this time, the second potential detection element 205 detects that the potential of the second hot plug pin 201 is at the preset potential and enables the second interrupt pin 204 to generate an interrupt signal, so that the second display device 200 enters the synchronization setting mode.

[0045] like Figure 1A As shown, each display device in display system 1000 utilizes a similar circuit design, including an upstream port and a downstream port. In this embodiment, first display device 100 is a display device adjacent to host 1100, and second display device 200 is a downstream device of first display device 100. When first display device 100 receives a setting adjustment command, it communicates with the upstream port of second display device 200 via its downstream port, causing second display device 200 to enter a synchronized setting mode.

[0046] like Figure 2B and Figure 3BAs shown, the display system 1000′ may include a first display device 100, a second display device 200, and a third display device 300. The first display device 100, the second display device 200, and the third display device 300 are connected in sequence. The third display device 300 has a third hot plug pin 301, a third interrupt pin 304, and a third voltage detection element 305. The third voltage detection element 305 is electrically connected to the third hot plug pin 301 and the third interrupt pin 304. The third hot plug pin 301 is communicatively connected to the second hot plug pin 201. After receiving the setting adjustment command, the first display device 100 controls the voltage of the first hot plug pin 101 to the aforementioned preset voltage. Since the first hot plug pin 101 of the first display device 100 is communicatively connected to the second hot plug pin 201 of the second display device 200, the second hot plug pin 201 is also controlled to the preset voltage. Because the third hot-swap pin 301 of the third display device 300 is communicatively connected to the second hot-swap pin 201 of the second display device 200, the third display device 300 controls the potential of the third hot-swap pin 301 to the predetermined potential in accordance with the potential of the second hot-swap pin 201. At this point, the third potential detector 305 detects that the potential of the third hot-swap pin 301 is at the predetermined potential and activates the third interrupt pin 304 to generate an interrupt signal, thereby causing the third display device 300 to enter the synchronization setting mode.

[0047] like Figure 2B and Figure 3B As shown, the second display device 200 further has a second I / O pin 202 and a second resistor 203. The third display device 300 further has a third I / O pin 302 and a third resistor 303. Similarly, the second display device 200 may have a second circuit board (not shown) and a second processing unit 220, and the third display device 300 may have a third circuit board (not shown) and a third processing unit 320. The second processing unit 220 is disposed on the second circuit board and may be an MCU (microcontroller unit). The second hot swap pin 201, the second I / O pin 202, and the second interrupt pin 204 may be disposed on the second processing unit 220. The second resistor 203 and the second potential detector 205 may be disposed on the second circuit board together with the second processing unit 220 or may be integrated with the second processing unit 220.

[0048] like Figure 2B and Figure 3BAs shown, in this embodiment, the second display device 200 further includes a fourth hot-swap pin 206, a fourth I / O pin 207, a fourth resistor 208, a fourth interrupt pin 209, and a fourth voltage detection element 210. The first hot-swap pin 101 is communicatively connected to the second hot-swap pin 201, and the third hot-swap pin 301 is communicatively connected to the fourth hot-swap pin 206. Because the second hot-swap pin 201 and the fourth hot-swap pin 206 are both located on the second processing unit 220, the second hot-swap pin 201 and the third hot-swap pin 301 are communicatively connected. Similarly, the fourth hot-swap pin 206, the fourth I / O pin 207, and the fourth interrupt pin 209 can be located on the second processing unit 220, and the fourth resistor 208 and the fourth voltage detection element 210 can be located on the second circuit board along with the second processing unit 220 or can be integrated into the second processing unit 220.

[0049] In this embodiment, after the second hot-swap pin 201 is controlled at a preset potential, the fourth I / O pin 207 is pulled low, and the potential of the fourth hot-swap pin 206 is simultaneously controlled at the preset potential via the fourth resistor 208. Because the third hot-swap pin 301 of the third display device 300 is communicatively connected to the fourth hot-swap pin 206 of the second display device 200, the third display device 300 controls the potential of the third hot-swap pin 301 at the preset potential in accordance with the potential of the fourth hot-swap pin 206.

[0050] like Figure 2B and Figure 3B As shown, each display device in display system 1000' utilizes a similar circuit design, each including an upstream port design (upstream port) and a downstream port design (downstream port). In this embodiment, the first display device 100 is the display device closest to the host 1100, and the second and third display devices 200 and 300 can be considered downstream devices of the first display device 100. When the first display device 100 receives a configuration adjustment command, it communicates with the upstream port of the second display device 200 via its downstream port. The downstream port of the second display device 200 then communicates with the upstream port of the third display device 300. This causes the second and third display devices 200 and 300, which are sequentially connected to the first display device 100, to control their hot plug pins to a preset voltage, enable their interrupt pins, and enter synchronous configuration mode. In actual operation, when the first display device 100 is the display device farthest from the host 1100, that is, the second and third display devices 200 and 100 are upstream devices of the first display device 100, the signal transmission and response methods are similar. When the number of display devices in the display system is greater than three, the signal transmission and response methods are similar and will not be further described.

[0051] like Figure 2C and Figure 3C As shown, the display system 1000 includes a first display device 100, a second display device 200 and a third display device 300. Different from the second embodiment, the third display device 300, the first display device 100 and the second display device 200 are connected in sequence, and the second hot plug pin 201 of the second display device 200 is connected to the hot plug pin 201 of the second display device 200. The third hot-swap pin 301 of the third display device 300 is communicatively connected to the first hot-swap pin 101 of the first display device 100. After receiving the setting adjustment command, the first display device 100 controls the voltage of the first hot-swap pin 101 to the aforementioned preset voltage. Since the first hot-swap pin 101 of the first display device 100 is communicatively connected to the second hot-swap pin 201 of the second display device 200 and the third hot-swap pin 301 of the third display device 300, the second hot-swap pins 201 and the third hot-swap pin 301 are also controlled to the preset voltage. At this point, when the second voltage detector 205 detects that the voltage of the second hot-swap pin 201 is at the preset voltage, it enables the second interrupt pin 204 and generates an interrupt signal, thereby causing the second display device 200 to enter the synchronous setting mode. When the third voltage detector 305 detects that the voltage of the third hot-swap pin 301 is at the preset voltage, it enables the third interrupt pin 304 and generates an interrupt signal, thereby causing the third display device 300 to enter the synchronous setting mode.

[0052] like Figure 2C and Figure 3C As shown, in this embodiment, the first display device 100 further includes a fifth hot-swap pin 106, a fifth I / O pin 107, a fifth resistor 108, a fifth interrupt pin 109, and a fifth voltage detection element 110. The first hot-swap pin 101 is communicatively connected to the second hot-swap pin 201, and the third hot-swap pin 301 is communicatively connected to the fifth hot-swap pin 106. Because the first hot-swap pin 101 and the fifth hot-swap pin 106 are both located on the first processing unit 120, the third hot-swap pin 301 is communicatively connected to the first hot-swap pin 101. Similarly, the fifth hot-swap pin 106, the fifth I / O pin 107, and the fifth interrupt pin 109 can be disposed on the first processing unit 120, and the fifth resistor 108 and the fifth voltage detection element 110 can be disposed on the first circuit board together with the first processing unit 120 or can be integrated into the first processing unit 120.

[0053] In this embodiment, after the first hot-swap pin 101 is controlled at a preset potential, the fifth I / O pin 107 is pulled low, and the potential of the fifth hot-swap pin 106 is simultaneously controlled at the preset potential via the fifth resistor 108. Because the third hot-swap pin 301 of the third display device 300 is communicatively connected to the fifth hot-swap pin 106 of the first display device 100, the potential of the third hot-swap pin 301 of the fourth display device 300 is controlled at the preset potential in accordance with the potential of the fifth hot-swap pin 106. Simultaneously, because the second hot-swap pin 201 of the second display device 200 is communicatively connected to the first hot-swap pin 101 of the first display device 100, the potential of the second hot-swap pin 201 of the second display device 200 is also controlled at the preset potential in accordance with the potential of the first hot-swap pin 101.

[0054] like Figure 2C and Figure 3C As shown, each display device in display system 1000' utilizes a similar circuit design, each display device including an upstream port design (upstream port) and a downstream port design (downstream port). In this embodiment, the first display device 100 is an intermediate display device not adjacent to the host 1100. The third display device 300 can be considered an upstream device of the first display device 100, and the second display device 200 can be considered a downstream device of the first display device 100. When the first display device 100 receives a setting adjustment command, it communicates with the upstream port of the second display device 200 via its downstream port. Simultaneously, the first display device 100 controls the hot plug pin of its upstream port to a preset voltage via the first hot plug pin 101 of its downstream port. This allows the upstream port of the first display device 100 to communicate with the downstream port of the third display device 300, causing the display devices upstream and downstream of the first display device 100 to control their hot plug pins to a preset voltage, enable their interrupt pins, generate an interrupt signal, and enter a synchronous setting mode. When the number of display devices in the display system is greater than 3, the procedure is similar and will not be further described.

[0055] In the prior art, hot-swap pins only provide unidirectional control. However, the display device of the present invention, through the design of existing hardware components, enables hot-swap pins to achieve bidirectional control during the synchronization setting adjustment process. In the present invention, each display device in the display system utilizes a similar circuit design. This allows the user to select any display device in the display system as the first display device 100. Regardless of which display device the user selects as the first display device (i.e., the current display device), synchronization adjustment can be achieved.

[0056] In the present invention, after entering the synchronous setting mode, in the second embodiment, the first display device 100 receives the setting data and simultaneously transmits it to the second display device 200. The second display device 200 receives the setting data and simultaneously transmits it to the third display device 300. In the third embodiment, the first display device 100 receives the setting data and simultaneously transmits it to the second and third display devices 200 and 300. In this way, the setting data input by the user is synchronously received, and synchronous adjustments are made when the setting is complete, facilitating user operation.

[0057] In the present invention, the signal transmission and response between two and three display devices are used as examples. In actual operation, this is not a limitation. After the first display device 100 receives the setting adjustment instruction, the other display devices, in the order of connection with the first display device 100, successively control their hot plug pins to a preset voltage, enable their interrupt pins, generate interrupt signals, and enter synchronous setting mode until all display devices except the first display device enter synchronous setting mode. After entering synchronous setting mode, the first display device 100 receives the setting data, and the other display devices, in the order of connection with the first display device 100, successively receive the setting data and transmit it to the next display device until all display devices have received the setting data. After the setting is completed, the first display device 100 resets the hot plug pin, and the other display devices also reset their hot plug pins, returning to normal operation mode.

[0058] like Figure 4 As shown, the present invention also proposes a setting adjustment method of the display system 1000, the setting adjustment method includes:

[0059] In step A ( S110 ), one of the plurality of display devices in the display system 1000 is selected as the first display device 100 . The first display device 100 has a first hot-swap pin 101 . The first display device 100 receives a setting adjustment instruction.

[0060] In step B ( S120 ), the first display device 100 controls the voltage level of the first hot plug pin 101 to a predetermined voltage level (e.g., lowering the voltage level of the first hot plug pin 101 to 1.4+ / -0.3V as described above) according to the setting adjustment command. The first hot plug pin 101 has a default low voltage level and a default high voltage level. The default voltage level is a blank area between the default low voltage level (logic low) and the default high voltage level (logic high).

[0061] In step C ( S130 ), the other display devices also control the potential of their respective hot plug pins to the preset potential in accordance with the potential of the first hot plug pin 101 of the first display device 100 , thereby enabling their respective interrupt pins and generating interrupt signals to enter the synchronous setting mode.

[0062] In step D ( S140 ), the first display device 100 receives the setting data and transmits the setting data to other display devices for setting.

[0063] In actual operation, the setting adjustment method may further include step E, where after the setting is completed, the multiple display devices return to a normal working mode.

[0064] In actual operation, before executing step A, all display devices 100 may be in normal operating mode. The hot-swap pin of each display device is at an initial voltage level. In step A, the configuration adjustment command may, for example, invoke an OSD menu on the first display device 100, but is not limited to this. At this point, the first display device 100 is informed by the configuration adjustment command that synchronization configuration is about to be performed. Display devices other than the first display device 100 may remain in normal operating mode.

[0065] In step B, in one embodiment, the first display device 100 may pull the first I / O pin 102 low according to the setting adjustment command, and control the potential of the first hot plug pin 101 to a predetermined potential via the first resistor 103. Because the first hot plug pin 101 is communicatively connected to the second hot plug pin 201 of the second display device 200, the potential signal of the first hot plug pin 101 is transmitted to the second hot plug pin 201. In actual operation, the first potential detector 105 of the first display device 100 detects that the first hot plug pin 101 is at the predetermined potential and enables the first interrupt pin 104 to generate an interrupt signal. However, as the initiator of the synchronization adjustment, the first display device 100 may ignore the interrupt signal.

[0066] In step C, in one embodiment, the potential of the second hot plug pin 201 of the second display device 200 is also controlled at a predetermined potential in accordance with the potential of the first hot plug pin 101. Upon detecting that the second hot plug pin 201 is at the predetermined potential, the second potential detector 205 enables the second interrupt pin 204, generating an interrupt signal, causing the second display device 200 to enter the synchronization setting mode. In the second embodiment, when a third display device 300 is connected sequentially, similarly, the potential of the third hot plug pin 301 is controlled at the predetermined potential in accordance with the potential of the second hot plug pin 201, thereby enabling the third interrupt pin 304 and generating an interrupt signal, causing the third display device 300 to enter the synchronization setting mode. The same logic applies if additional display devices are included. Thus, the display devices other than the first display device 100 enter the synchronization setting mode from the normal operating mode.

[0067] In step D, after entering the synchronous setting mode, in the second embodiment, the first display device 100 receives the setting data and transmits it to the second display device 200. The second display device 200 receives the setting data and transmits it to the third display device 300. The same applies to the other display devices. In the third embodiment, the first display device 100 receives the setting data and simultaneously transmits it to the second display device 200 and the third display device 300. In this embodiment, the setting data is, for example, the relevant setting parameters entered in the OSD menu, but in actual operation, this is not limited to this.

[0068] In step E, after the setting is completed, the first hot-swap pin 101 is restored to its initial potential to return to normal operating mode, thereby restoring the second hot-swap pin 201 to its initial potential to return to normal operating mode. The same applies to other display devices. When returning to normal operating mode, the first I / O pin 103 of the first display device 100 can be set to High-Z (high impedance) mode to prevent it from affecting the normal function of the first hot-swap pin 101. Similarly, the second I / O pin 203 can be set to High-Z (high impedance) mode to prevent it from affecting the normal function of the second hot-swap pin 201. The same applies to other display devices.

[0069] The display system and adjustment method of the present invention, when arbitrarily selecting a display device as the current display device, uses the potential of the first hot-swappable pin of the first display device to control the potential at a preset potential, and the other display devices also control the potential of their respective hot-swappable pins at the preset potential in accordance with the potential of the first hot-swappable pin, thereby enabling their respective interrupt pins to enter a synchronous setting mode. In this way, when the user inputs setting data to the current display device, the current display device can simultaneously transmit the setting data to the other display devices, so that the display devices in the display system can all receive the same settings and complete the setting adjustment synchronously, thereby reducing the time for the user to adjust each display device in the display system one by one, and also avoiding the situation where setting differences between display devices occur, facilitating user operation and improving the user experience.

[0070] 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

1. A display system comprising a plurality of display devices connected in series and in communication, characterized in that: When one of the multiple display devices is selected as the first display device, the first display device has a first hot plug pin. The first display device receives a setting adjustment instruction and controls the potential of the first hot plug pin to a preset potential according to the setting adjustment instruction; the other display devices also control the potential of their respective hot plug pins to the preset potential in accordance with the potential of the first hot plug pin, thereby enabling their respective interrupt pins to enter a synchronous setting mode; the first display device receives setting data and transmits the setting data to the other display devices for setting, wherein the first hot plug pin has a default low potential and a default high potential, and the preset potential is a blank area between the default low potential and the default high potential.

2. The display system according to claim 1, wherein: The default low potential is between the first potential and the second potential, and the default high potential is between the third potential and the fourth potential, wherein the first potential is less than the second potential, and the third potential is less than the fourth potential; the preset potential is the middle value between the second potential and the third potential.

3. The display system according to claim 1, wherein: The first display device has a first I / O pin and a first resistor, the first resistor is electrically connected to the first I / O pin and the first hot-swap pin, the first display device pulls down the first I / O pin according to the setting adjustment instruction, and at the same time controls the potential of the first hot-swap pin to a preset potential through the first resistor.

4. The display system according to claim 1, wherein: The display system includes a first display device and a second display device connected to each other, the second display device having a second hot plug pin, a second interrupt pin and a second potential detection component, the second potential detection component electrically connected to the second hot plug pin and the second interrupt pin, the first hot plug pin and the second hot plug pin being communicatively connected; the second display device controls the potential of the second hot plug pin to be at a preset potential in accordance with the potential of the first hot plug pin, and the second potential detection component enables the second interrupt pin when detecting that the potential of the second hot plug pin is at the preset potential, and the second display device enters the synchronization setting mode.

5. The display system according to claim 4, characterized in that The display system also includes a third display device. The first display device, the second display device and the third display device are connected in sequence. The third display device has a third hot plug pin, a third interrupt pin and a third potential detection element. The third potential detection element is electrically connected to the third hot plug pin and the third interrupt pin. The third hot plug pin is communicatively connected to the second hot plug pin. The third display device controls the potential of the third hot plug pin to be at a preset potential in accordance with the potential of the second hot plug pin. When the third potential detection element detects that the potential of the third hot plug pin is at the preset potential, it enables the third interrupt pin, and the third display device enters the synchronization setting mode.

6. The display system according to claim 4, wherein: The display system also includes a third display device, which is connected to the first display device and the second display device in sequence. The third display device has a third hot plug pin, a third interrupt pin and a third potential detection element. The third potential detection element is electrically connected to the third hot plug pin and the third interrupt pin, and the third hot plug pin is communicatively connected to the first hot plug pin. The third display device controls the potential of the third hot plug pin to be at a preset potential in accordance with the potential of the first hot plug pin. When the third potential detection element detects that the potential of the third hot plug pin is at the preset potential, it enables the third interrupt pin, and the third display device enters the synchronization setting mode.

7. A method for adjusting settings of a display system, characterized in that: The display system includes a plurality of display devices connected in series and in communication, and the setting adjustment method includes: Step A, selecting one of the plurality of display devices as a first display device, the first display device having a first hot-swap pin, and the first display device receiving a setting adjustment instruction; Step B: the first display device controls the potential of the first hot-swap pin to a preset potential according to the setting adjustment, wherein the first hot-swap pin has a default low potential and a default high potential, and the preset potential is a blank area between the default low potential and the default high potential; Step C, each of the other display devices also controls its own hot-swap pin to the preset potential in accordance with the potential of the first hot-swap pin of the first display device, thereby enabling its own interrupt pin to enter a synchronous setting mode; and In step D, the first display device receives the setting data and transmits the setting data to other display devices for setting.

8. The setting adjustment method according to claim 7, characterized in that: The default low potential is between the first potential and the second potential, and the default high potential is between the third potential and the fourth potential, wherein the first potential is less than the second potential, and the third potential is less than the fourth potential; the preset potential is the middle value between the second potential and the third potential.

9. The setting adjustment method according to claim 7, characterized in that: The display system includes a first display device and a second display device connected to each other, the second display device having a second hot plug pin and a second interrupt pin, and the first hot plug pin is communicatively connected to the second hot plug pin; in step C, the potential of the second hot plug pin is controlled to the preset potential in accordance with the potential of the first hot plug pin, thereby enabling the second interrupt pin and the second display device entering the synchronization setting mode.

10. The setting adjustment method according to claim 9, wherein: The display system further includes a third display device. The first display device, the second display device, and the third display device are connected in sequence. The third display device has a third hot-swappable pin and a third interrupt pin. The third hot-swappable pin is communicatively connected to the second hot-swappable pin. In step C, the potential of the third hot-swappable pin is controlled to the preset potential in accordance with the potential of the second hot-swappable pin, thereby enabling the third interrupt pin and causing the third display device to enter the synchronization setting mode.

11. The setting adjustment method according to claim 9, wherein: The display system also includes a third display device, which is connected to the first display device and the second display device in sequence. The third display device has a third hot plug pin, a third interrupt pin and a third potential detection element. The third potential detection element is electrically connected to the third hot plug pin and the third interrupt pin. The third hot plug pin is communicatively connected to the first hot plug pin. In step C, the potential of the third hot plug pin is controlled to the preset potential in accordance with the potential of the first hot plug pin, so that the third interrupt pin is enabled and the third display device enters the synchronization setting mode.

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