TWI513306B - Adjust the system for displaying settings on the screen of multiple monitors - Google Patents

Description

System for adjusting the display function of multiple monitors

The invention relates to a method and a system for adjusting an On-Screen Display (OSD) setting function of a display, in particular to adjusting a plurality of units by a Consumer Electronic Control (CEC) protocol. The method and system for setting the function are displayed on the screen of the display.

Generally, a place with multiple monitors, such as a computer classroom, a cram school, or an online coffee shop, usually allows each display to maintain the same on-screen display setting function and synchronously control each display on the screen using the traditional RS232 protocol. Display function. However, there are the following pitfalls under the RS232 protocol:

1. A host computer is required to connect to the displays and the display can be set by the host computer. That is, the display must be set by an additional and specific computer host to set other displays.

2. Since the transmission command of the RS232 protocol is one-way transmission, it is easy to have a missing command.

3. Due to the characteristics of the RS232 protocol, each monitor needs to occupy two General Purpose I/O (GPIO) pins (received for receiving/transmitting), and cannot use a single pin to transmit data.

Accordingly, it is an object of the present invention to provide a method and system for displaying a setting function on a screen of a plurality of displays that overcomes the aforementioned deficiencies.

The method for adjusting the display setting function of a plurality of displays of the present invention comprises the following steps: (a) serially connecting a plurality of displays to each other, the displays each recording a control instruction set conforming to a consumer electronic control protocol, the control instruction The set includes a plurality of sets of control commands, each of which defines a display setting function on the screen; (b) after the display setting function is set on the screen of one of the displays, the broadcast mode is scheduled to be transmitted by the consumer electronic control protocol The control command of the set function is displayed on the remaining display; and (c) the remaining displays adjust their own settings according to the received control command.

Preferably, in step (b), the display transmits information including a target device code and the control command, and the target device code is set to a broadcast mode such that the remaining displays receive the control command at the same time; The information content transmitted in the step (b) further includes an acknowledgement code transmitted after the control command, and the confirmation code is used by the display that sends the information to verify whether the control command is correctly transmitted after transmitting the information, if not correct Resend again when transmitting.

Preferably, in the method for adjusting the setting function on the screen of the plurality of displays, the on-screen display setting function set by the display in the step (b) is a switching mode displayed on the screen, and the screen is displayed on the screen. The switching mode is a power mode, a power saving mode, a color temperature mode, a silent mode, a dynamic contrast mode, a language mode, an overscan mode, an extended display capability identification data length mode, a computer communication mode, a trademark display mode, or a menu lock mode; and the remaining display of the step (c) adjusts the power mode of the switching mode corresponding to the screen, the power saving mode, the color temperature mode, the silent mode, the dynamic pair Ratio mode, the language mode, The overscan mode, the length mode of the extended display capability identification material, the computer communication mode, the trademark display mode, or the menu lock mode. The on-screen display setting function may also be an adjustable parameter, the adjustable parameter is a brightness value, a contrast value or a volume value; and the remaining displays of step (c) adjust the brightness of the brightness corresponding to the adjustable parameter. Value, contrast value, or volume value.

The system for adjusting the display setting function of the plurality of displays of the present invention comprises a plurality of displays connected in series, wherein the displays each record a control instruction set conforming to a consumer electronic control protocol, the control instruction set includes a plurality of sets of control commands, each of which defines a switching mode or an adjustable parameter displayed on the screen, and when one of the displays sets an internal switching mode or the adjustable parameter displayed on the screen, the consumer electronic control protocol The predetermined broadcast mode transmits a control command having the switching mode or the adjustable parameter displayed on the screen to the remaining displays, so that the remaining displays adjust their own settings according to the control command.

Preferably, the displays each comprise an image control circuit having a consumer electronic control pin, and each of the consumer electronic control pins is connected in series with each other by a connecting line.

Preferably, the switching mode displayed on the screen is a power mode of the display, a power saving mode, a color temperature mode, a silent mode, a dynamic contrast mode, a language mode, an overscan mode, an extended display capability, a length mode of the identification data, and a computer communication. Mode, trademark display mode, or menu lock mode; this adjustable parameter is the brightness value, contrast value or volume value of the display.

The method and system for adjusting the display setting function on the screen of multiple displays of the present invention are as follows:

1. Commands can be set by any one of the monitors to set other monitors. It is not necessary to use a host computer to connect to the monitors for setting.

2. Due to the characteristics of the Consumer Electronic Control Protocol (CEC), each display only needs to occupy one consumer electronic control pin to be responsible for transmitting and receiving functions, which can save the use of control pins.

3. Since the transmission command of the consumer electronic control agreement is a two-way transmission, if the loss can be requested to be retransmitted, there will be no missing command.

The foregoing and other objects, features, and advantages of the invention are set forth in the <RTIgt;

Referring to FIG. 1, for convenience of description, a preferred embodiment of the system 100 for adjusting the on-screen display function of a plurality of displays is illustrated by taking three displays 1, 1', 1" as an example, and the system 100 further includes a The wires 5 are connected, and the displays 1, 1', 1" are connected in series with each other by the connecting wires 5. Preferably, the connecting line 5 of this example is implemented as a single core wire.

It should be noted that those skilled in the consumer electronics control (CEC) agreement know that because the consumer electronic control protocol is to provide command control compatible with the display of the HDMI interface, in addition, two or more than one or more All belong to the scope of application of the method of the present invention, and are not limited to three.

The display module 1 has an image control circuit 10 and an input module 11, and the input module 11 of the embodiment is a button group disposed on the main body of the display 1 for adjusting the display function on the screen, and the user operates the input module 11 The OSD menu can be opened, and the input module 11 can be operated in this state to generate an adjustment. The input mode of the function switching mode (such as power on/off) or adjustable parameter (such as brightness value) is displayed on the screen.

The image control circuit 10 of the present embodiment has a main control unit 101, an OSD unit 102, a memory unit 103, and a consumer electronic control pin 13. The main control unit 101 is electrically connected to the OSD unit 102, the memory unit 103, and the consumer. The electronic control pin 13, the OSD unit 102 is controlled by the main control unit 101, and the main control unit 101 obtains an input command representing a switching mode (such as power on/off) or adjusting adjustable parameters (such as brightness value), and then notifying The OSD unit 102 switches the power on/off or adjusts the brightness value, thereby achieving the purpose of adjusting the display function on the screen.

The display 1', 1" also has similar elements as described above: the image control circuits 10', 10" also have main control units 101', 101", OSD units 102', 102", memory units 103', 103" and consumer electronics The control pins 13', 13" are not repeated here because the components have similar functions.

Referring to FIG. 2, with reference to FIG. 1, the method for adjusting the on-screen display setting function of a plurality of displays of the present invention will be described below.

Step 201: The plurality of displays 1, 1', 1" are connected in series with each other; for example, the respective consumer electronic control pins 13, 13', 13" are connected in series with each other by a connecting line 5. Preferably, the connecting line 5 of this example is implemented as a single core wire.

It should be added that the consumer electronic control agreement does not require a specific master-servant relationship, and no additional computer host is required, and the consumer electronic control protocol only needs to use one pin to connect the devices, without input pins and output connections. Foot (will occupy two pins), and because the transmission command of the consumer electronic control agreement is bidirectional transmission and if it is lost, retransmission is required, there will be no missing command The situation happened.

Step 202: One of the displays 1 sets an internal on-screen display function, and the on-screen display function includes a “switching mode displayed on the screen” or a “adjustable parameter”, and “switching mode displayed on the screen” is setting A power mode (on/off), a power saving (ECO) mode, a color temperature mode (Color Mode), a mute mode, a dynamic contrast ratio (DCR) mode, a language mode, An extension display identification data (EDID) length setting mode, a computer communication (DDCCI) mode, a trademark (Logo) display mode, or an OSD lock mode, wherein the extended display The capability identification data includes the manufacturer name and serial number, which can be set to 128 or 256 bytes. The "tunable parameter" is a brightness value, a contrast value, or a volume value.

Step 203: The display transmits a control command having the switching mode or the adjustable parameter displayed on the screen to the remaining displays 1', 1" in a broadcast mode predetermined by the consumer electronic control protocol.

In this embodiment, the memory units 103, 103', 103" of each display 1, 1', 1" are recorded with a control instruction set conforming to the consumer electronic control protocol, and the control instruction set includes a plurality of sets of control instructions, each control The instructions respectively define a switching pattern or the adjustable parameter displayed on the screen as described above.

Referring to FIG. 3, the content of the information 3 conforming to the Consumer Electronic Control Agreement includes a "Start Bit" 31, a "Header Block" 32 and a "Data Block" 33, which are described below.

The content of the "header block" 32 includes a "starting device code" 321, A "target device code" 322, an "end of message (EOM)" 323, and a "confirmation code (ACK)" 324 are described below.

The "starting device code" 321 is the sender's own logical address. Since it is sent by itself, it will add its own logical address. The "target device code" 322 sets the logical address to "15", which means The "broadcast mode" is sent to other devices connected in series. The consumer electronic control protocol has fifteen sets of device logic addresses (Logic Address), which represent different devices. "15" stands for "broadcast mode". That is, it is set to "broadcast mode". The "message end code" 323 represents the last byte of the "target device code" 322; the function of the "confirmation code" 324 is that the master (display 1) can detect the current state of use of the bus bars of the devices currently connected in series. If not used, the master (display 1) sends the message 3 to the other recipients (display 1', 1"), and then the receiver generates a "confirmation code" 324 based on the content of the received message 3, and then The master receives the "confirmation code" 324 sent from other recipients. If the content of the "confirmation code" 324 is incorrect, it means that the target device has an error, and the master will retransmit the message 3 to other recipients. (display 1 ', 1").

The content of the "data block" 33 includes a "command data" 331, a "message end code" 332 and a "confirmation code" 333. The "instruction data" 331 content format includes a "reserved address" and "Control Command", "Reserved Address" is the address designed by the factory to be user-controlled (User Control) custom function; the setting function of "Control Command" includes "switch mode displayed on the screen" or " Adjustable parameters are described below.

1 is the meaning of the "reserved address" of the "command data" 331, the control command, and the corresponding "switching mode on the screen display"; however, those skilled in the art can also according to the requirements. The definition of "switching mode displayed on the screen" is adjusted by itself, and is not limited by those listed in Table 1.

Table 2 is the "adjustable parameter" used by the user in the preferred embodiment; however, those skilled in the art can also add or delete the definition of "adjustable parameter" according to the requirements, not as listed in Table 2. limit.

In addition, the "message end code" 332 of the "data block" 33 represents the last byte of the "command data" 331; the role of the "confirmation code" 324 is that the master (display 1) transmits the message 3 to other receiving After the display (display 1', 1"), the recipient generates a "confirmation code" 324 according to the content of the "command data" 331 of the received information 3, such as: calculating the checksum of the "instruction data" 331 (Checksum); The master receives the "confirmation code" 324 sent from other recipients. If the content of the "confirmation code" 324 is determined to be wrong, the master will retransmit the message 3 to other recipients (display 1', 1 "), so there will be no missing commands.

Step 204: The remaining displays 1', 1" adjust their own settings according to the control command; that is, when the display 1 is in the broadcast mode, the display 1', 1" can be transmitted on the screen by the control command transmitted from the connection line 5. Display the switching mode / adjustable parameter content to adjust its own settings, without using an additional computer host, display 1 can complete the display display function of the display 1', 1".

In summary, the method and system for adjusting the display function of the plurality of displays on the screen of the present invention are: It is worth noting that in other embodiments, the display 1', 1" may also have a similar input module. 11 input module (not shown), so The on-screen display setting function of other displays can be controlled by any one of the displays.

1. Reducing the cost: by one of the displays 1 transmitting the command data 331 containing the control command and the information 3 for setting the target device code 322 to the broadcast mode, the remaining displays 1', 1" can simultaneously receive the control. The command cut is automatically set, so other monitors can be set by any one of the monitors. No need to use an additional host to connect the monitors 1, 1', 1" to save the cost of setting up the host computer.

2. Precise control: the content of the information 3 includes an acknowledgement code 333 transmitted after the command material 331, and the confirmation code 33 is used by the display 1 transmitting the information 3 to verify whether the control command is correctly transmitted after transmitting the information 3, if not Retransmitted once when transmitting correctly, there will be no missing commands.

3. Saving pins: Compared with the traditional RS232 communication protocol, the receiving and sending will occupy two GPIO pins in each display. Due to the characteristics of the consumer electronic control protocol, each display only needs to occupy one consumer electronic. The control pin is responsible for the transceiving function, which saves the use of the control pin and saves cost, so that the object of the present invention can be achieved.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

100‧‧‧ system

1, 1', 1" ‧ ‧ display

10, 10', 10" ‧ ‧ image control circuit

101, 101’, 101” ‧ ‧ main control unit

102, 102’, 102”‧‧‧OSD units

103, 103’, 103”‧‧‧ memory unit

11, 11', 11" ‧ ‧ input module

13, 13’, 13” ‧ ‧ consumer electronic control pins

201~204‧‧‧Steps

3‧‧‧Information

31‧‧‧ Start code

32‧‧‧Header block

321‧‧‧Starting device code

322‧‧‧Target device code

323‧‧‧Message End Code

324‧‧‧Confirmation code

33‧‧‧Information block

331‧‧‧Instruction Information

332‧‧‧Message End Code

333‧‧‧Confirmation code

5‧‧‧Connecting line

1 is a system block diagram showing a preferred embodiment of a system for adjusting the on-screen display function of a plurality of displays; 2 is a flow chart illustrating a preferred embodiment of the method of the present invention for adjusting the on-screen display setting function of a plurality of displays; and FIG. 3 is a schematic diagram showing the information format conforming to the consumer electronic control protocol.

201~204‧‧‧Steps

Claims (4)

A system for adjusting a display function of a plurality of displays on a screen, comprising a plurality of displays connected in series with each other and at least one single core wire, wherein the displays each record a control instruction set conforming to a consumer electronic control protocol, the control command The set includes a plurality of sets of control commands, each of which defines a switching mode or an adjustable parameter displayed on the screen, and when one of the displays sets an internal switching mode or the adjustable parameter displayed on the screen, the consumer electronic Controlling the predetermined broadcast mode of the protocol to send a control command having the switching mode or the adjustable parameter displayed on the screen to the remaining displays, so that the remaining displays adjust their own settings according to the control command; the displays further include a consumer electronic The image control circuit of the control pin is controlled, and each of the consumer electronic control pins is connected to each other in the single core line. a system for adjusting a setting function on a screen of a plurality of displays according to the first aspect of the patent application, wherein the display transmits information including a target device code and the control command, and the target device code is set to broadcast The mode is such that the remaining displays receive the control command at the same time. a system for adjusting a setting function on a screen of a plurality of displays according to the second aspect of the patent application, wherein the information content further includes an acknowledgement code transmitted after the control command, and the confirmation code is for transmitting the information. The display verifies that the control command is retransmitted once when it is not correctly transmitted. A system for adjusting a setting function of a plurality of displays on a screen according to the third aspect of the patent application, wherein the switching mode displayed on the screen is a power mode, a power saving mode, a color temperature mode, a silent mode, and a dynamic pair of the display. Ratio mode, language mode, overscan mode, extended display capability identification data length mode, computer communication mode, trademark display mode, or menu lock mode; the adjustable parameter is the display brightness value, contrast value or volume value.