CN110491322B - Screen display drive circuit and control method - Google Patents

Abstract

The invention provides a screen display driving circuit and a method for controlling screen display operation of a display. The screen display driving circuit is arranged in the display and used for controlling OSD operation of the display. The screen display driving circuit comprises a signal port and a microprocessor. The signal port is coupled to the signal channel and is used for receiving the OSD starting instruction and the OSD executing instruction from the host computer successively through the signal channel. The OSD executing command is generated in response to the operation of the cursor device on the host side, and the movement of the cursor displayed on the display panel of the display is controlled by the cursor device. The microprocessor is coupled to the signal port for driving a display panel of the display to display an OSD menu according to the OSD starting instruction and for executing the OSD operation of the display according to the OSD executing instruction and the coordinate of the cursor.

Description

Screen display drive circuit and control method

technical field

The present invention relates to an On-Screen-Display (OSD) drive circuit and its control method, especially to an On-Screen-Display (OSD) drive circuit and its control method which can be controlled by an external cursor device.

Background technique

Generally speaking, users usually have to control an On-Screen-Display (OSD) menu interface on the screen through physical buttons on the monitor, and then adjust parameters to achieve specific visual effects.

In recent years, there are more and more applications on the display, and the entire OSD menu structure is also complicated. Under such circumstances, it becomes more and more inconvenient to simply use physical buttons to operate OSD menu functions. In addition, as the size of the display is getting bigger and bigger, the distance between the user and the display is getting farther and farther, and it is inconvenient to perform OSD operations through physical buttons.

Contents of the invention

The invention provides an On-Screen-Display (OSD) driving circuit and a control method thereof, which are convenient for users to operate the OSD of the display through an external cursor device.

An embodiment of the present invention discloses a method for controlling an On-Screen-Display (OSD) operation of a display. The method includes: the display receives an OSD start command from the host through a signal channel; , to drive the display panel of the display to display the OSD menu; the display receives the OSD execution command from the host side through the signal channel and the coordinates of the cursor on the display panel, wherein the OSD execution command is generated in response to the operation of the cursor device on the host side, and the cursor The movement on the display panel is controlled by the cursor device; and the display executes the OSD operation of the display according to the received OSD execution command and coordinates.

Another embodiment of the present invention discloses an OSD driving circuit. The OSD driving circuit is arranged in the display to control the OSD operation of the display. The OSD driving circuit includes a signal port and a microprocessor. The signal port is coupled to the signal channel, and is used for successively receiving an OSD opening command and an OSD execution command from the host side through the signal channel. The OSD execution command is generated in response to the operation of the cursor device at the host end, and the movement of the cursor displayed on the display panel of the display is controlled by the cursor device. The microprocessor is coupled to the signal port, and is used to drive the display panel of the display to display the OSD menu according to the OSD start command, and to execute the OSD operation of the display according to the OSD execution command and the coordinates of the cursor.

In this way, the user can operate the OSD of the display through the external cursor device, so as to adjust the relevant operating parameters of the display.

Description of drawings

FIG. 1 is a functional block diagram of a display with a built-in screen display driving circuit according to an embodiment of the present invention and a host coupled to the display.

FIG. 2 is a schematic diagram of two layers displayed on the display panel of the display of FIG. 1 .

FIG. 3 is a flowchart of a method for controlling an On-Screen-Display (OSD) operation of a display according to an embodiment of the present invention.

FIG. 4 is a flow chart of controlling the OSD operation of the display in FIG. 1 according to an embodiment of the present invention.

FIG. 5 is a flow chart of controlling the OSD of the display on the host side of FIG. 1 according to an embodiment of the present invention.

【Symbol Description】

100 monitors

110 On-screen display (OSD) drive circuit

112 signal port

114 microprocessors

120 display panel

131 to 133 keys

140 video channels

150 signal channels

200 host side

210 CPU

220 operating system

230 OSD control software

240 cursor device

241, 242 control elements

310, 320 layers

312 Control Windows

314 Cursor

322 OSD menu

330 OSD options

S310 to S340, S410 to S490, S510 to S540 steps

So OSD open command

Sc OSD shutdown command

Scl OSD execution command

S1 coordinates

Sv video signal

Sz OSD menu size

Location of S2 OSD menu

Detailed ways

The present invention mainly provides an on-screen display (On-Screen-Display; OSD) driving circuit and its control method, the user can operate the OSD of the display through an external cursor device (such as: a computer mouse), and Adjust the relevant operating parameters of the display to greatly improve the convenience of OSD operation.

Please refer to FIG. 1 , which is a functional block diagram of a display 100 built with an on-screen display (OSD) driving circuit 110 according to an embodiment of the present invention and a host 200 coupled to the display 100 . The OSD driving circuit 110 is disposed in the display 100 for controlling the OSD operation of the display 100 . The OSD operation of the display 100 refers to displaying an OSD menu on the display panel 120 of the display 100 to provide a visual interface, thereby allowing the user to adjust the parameters of the display 100 . Wherein, the parameters of the above-mentioned display 100 may include but not limited to: brightness, contrast, saturation, color temperature, gamma (Gamma), color gamut, color curve, width of the display screen, length of the display screen, and display screen of the display 100. slope, context mode.

In this embodiment, the host end 200 is a personal computer (such as a desktop personal computer, a notebook computer), and the host end 200 transmits a video signal Sv to the display 100 through the video channel 140, so that the display 100 The received video signal Sv drives the display panel 120 to display the corresponding image. The video channel 140 can be set in a video cable, and the video cable can be selected from a video graphics array (Video Graphics Array; VGA) cable, a digital visual interface (Digital Visual Interface; DVI) cable , a group consisting of a High Definition Multimedia Interface (HDMI) cable and a DisplayPort cable.

The host 200 includes a CPU 210 , an operating system 220 , an OSD control software 230 and a cursor device 240 . Wherein, the central processing unit 210 may be, but not limited to, a central processing unit manufactured by companies such as Intel (Intel), AMD, and NVIDIA. In addition, the operating system 220 and the OSD control software 230 are installed in the host terminal 200 in the form of software, and can be executed by the central processing unit 210 . The operating system 220 may be, but not limited to, a Windows operating system of Microsoft, a macOS operating system of Apple Computer, or a Linux operating system. In addition, the cursor device 240 can be, but not limited to, a computer mouse, a track ball (tracking ball), a joystick (joystick), or a touch panel (touch panel). The main function of the cursor device 240 is to control the display The movement of a cursor displayed on the panel 120 and the related clicking (Click) action in the operating system 220 are performed. The cursor device 240 may include a plurality of control elements 241 to 242, and the control elements 241 to 242 may be buttons, wheels, or touch panels. Under the environment of the operating system 220, actions such as clicking, holding, scrolling, sliding, etc. are performed. In addition, the cursor device 240 can transmit signals to the motherboard of the host terminal 200 through wired or wireless means, wherein the central processing unit 210 is arranged on the motherboard. In a wired manner, the cursor device 240 and the motherboard can be connected via interfaces such as a Universal Serial Bus (USB), RS-232 interface or PS/2 interface; in a wireless manner In other words, the cursor device 240 and the motherboard can communicate through wireless communication interfaces such as Bluetooth (Bluetooth), Wi-Fi, etc.

The OSD driving circuit 110 includes a signal port 112 and a microprocessor 114 . The signal port 112 is coupled to the signal channel 150 for receiving related OSD commands from the host 200 through the signal channel 150 (such as: OSD start command So, OSD execution command Scl . . . , etc.). In one embodiment of the present invention, the signal channel 150 and the video channel 140 are set in the same video cable (for example: VGA, DVI, HDMI or DisplayPort cable), and the video cable connects the display 100 to the host terminal 200 . Wherein, when the above-mentioned video cable is a VGA, DVI or HDMI cable, the signal channel 150 can be a display data channel (Display Data Channel; DDC); when the above-mentioned video cable is a DisplayPort cable, the signal channel 150 can be an auxiliary (Auxiliary; AUX) channel. In another embodiment of the present invention, the signal channel 150 is set in a signal cable different from the above-mentioned video cable, and the above-mentioned signal cable is connected between the display 100 and the host terminal 200 . Wherein, the above-mentioned signal cable may be, but not limited to, an RS-232 cable or a Universal Serial Bus (USB) cable.

The microprocessor 114 is coupled to the signal port 112 for driving the display panel 120 of the display 100 to display the OSD menu according to the OSD command, so as to execute the OSD operation of the display. In order to enable the host computer 200 to transmit OSD commands to the display 100 , in an embodiment of the present invention, the host computer 200 is installed with an OSD control software 230 . Wherein, the OSD control software 230 can be an independent application program, or a subsidiary program embedded in the driver program of the cursor device 240, and its function is mainly to generate relevant OSD commands according to the operation of the cursor device 240, and The generated relevant OSD commands are transmitted to the OSD driving circuit 110 through the signal channel 150 and the signal port 112, so that the OSD driving circuit 110 can control the display 100 to perform corresponding OSD operations according to the received related OSD commands . To further illustrate the functions of the OSD driving circuit 110 and the OSD control software 230, please refer to FIG. 1 and FIG. 2 at the same time. FIG. 2 is a schematic diagram of two layers displayed on the display panel 120 of the display 100 of FIG. 1 . In this embodiment, when the display 100 performs OSD operations, the display panel 120 displays the control window 312 and the OSD menu 322 in two layers 310 and 320 respectively. Wherein, the layer 310 is the uppermost layer among the layers that the display panel 120 can display, so when the display panel 120 displays the OSD menu 322 on the layer 310, the OSD menu 322 will not be covered by other layers . In addition, in this embodiment, the OSD menu 322 is a translucent menu, and the control window 312 is displayed on the lower layer of the OSD menu 322 and completely overlaps with the OSD menu 322 . Since the OSD menu 322 is a semi-transparent menu, even if the control window 312 is displayed on the lower layer of the OSD menu 322 and is completely covered by the OSD menu 322, the displayed content of the control window 312 (for example: cursor 314) can still be viewed by the user. seen. In addition, the OSD menu 322 includes a plurality of OSD options 330, and each OSD option 330 represents an OSD function, such as: brightness, contrast, automatic adjustment, length of display screen, width of display screen, color gamut, color curve, gamma Gamma, Color Temperature, Scene Mode, Saturation, Tilt of Display Screen, Leave...etc. The user can use the cursor device 240 to move the cursor 314 to the OSD option 330 to be adjusted, and by clicking on the cursor device 240, the display 100 will execute the OSD option 330 at the position of the cursor 314. Corresponding OSD operation. For example: when the cursor 314 is moved into the OSD option 330 for adjusting the brightness of the display 100, and the control element 241 of the cursor device 240 is triggered (such as: clicked), the display 100 promptly performs adjustment of its own display screen operation of the brightness.

In addition, it can be further understood that in this embodiment, the control window 312 is a blank window of the operating system 220 and is opened by the operating system 220 . When the control window 312 is opened, the control window 312 will cover the overlapping portion of other windows (if any) of the operating system 220 and the OSD menu 322 . Furthermore, the layer 310 where the control window 312 is located is the second upper layer next to the uppermost layer 320 , and is located between the uppermost layer 320 and other layers. In this way, when the user uses the cursor device 240 to control the cursor 314 and clicks the OSD option 330, due to the existence of the control window 312, it is possible to avoid clicking other windows other than the control window 312 in the display area of the OSD menu 322. , so it can avoid misoperation caused by clicking to other windows.

In the following, the interaction between the display 100 and the host 200 will be further described how to control the OSD operation of the display 100 in an embodiment of the present invention. Please refer to Figure 1 and Figure 2 again. In an embodiment of the present invention, when the host 200 starts the OSD control software 230, the OSD control software 230 will generate an OSD start command So. The OSD start command So is transmitted to the signal port 112 through the signal channel 150 , so that the microprocessor 114 drives the display panel 120 of the display 100 to display the OSD menu 322 according to the OSD start command So. Afterwards, the microprocessor 114 will send the information of the size Sz of the OSD menu and the position S2 of the OSD menu 322 on the display panel 120 back to the host 200, so that the operating system 220 of the host 200 can use the size Sz of the OSD menu and the information of the position S2 of the OSD menu 322 on the display panel 120. The position S2 of the OSD menu 322 on the display panel 120 opens the control window 312 so that the control window 312 and the OSD menu 322 completely overlap. When the OSD menu 322 and the control window 312 are opened, the OSD control software 230 will determine whether the display 100 performs any OSD operation within a predetermined time (for example: ten seconds) after the OSD menu 322 and the control window 312 are opened. If the display 100 does not perform any OSD operation within a predetermined time after the OSD menu 322 and the control window 312 are opened, the operating system 220 will close the control window 312, and the OSD control software 230 will send an OSD close command through the signal channel 150 Sc is connected to the signal port 112 of the OSD driving circuit 110, so that the microprocessor 114 controls the display panel 120 to close the OSD menu 322 according to the OSD close command Sc. On the other hand, when the display panel 120 displays the OSD menu 322 and the control window 312, if the cursor 314 moves to the range of the control window 312, and the cursor device 240 has a click operation, the OSD control software 230 will generate an OSD execution Command Scl, and transmit the OSD execution command Scl and the coordinate S1 of the cursor 314 to the signal port 112 through the signal channel 150, so that the microprocessor 114 controls the display 100 to execute according to the OSD execution command Scl and the coordinate S1 of the cursor 314 Related OSD operations. Further, the microprocessor 114 will judge whether the current display 100 should perform an OSD operation according to the OSD execution command Sc1, and judge which OSD operation the display 100 should perform according to the coordinate S1 of the cursor 314 (that is, according to the coordinate S1 of the cursor 314). The cursor S1 determines which OSD option 330 the cursor 314 is currently located in, so as to perform the OSD operation corresponding to the OSD option 330). In this way, when the OSD driving circuit 110 receives the OSD execution command Scl and the coordinate S1 of the cursor 314 , the OSD driving circuit 110 can control the display 100 to execute the OSD operation corresponding to the OSD option 330 where the cursor 314 is located.

In the above-mentioned embodiment, the OSD start command So is generated because the host 200 starts the OSD control software 230, but the present invention is not limited thereto. For example, when the user operates the cursor device 240 in a specific mode, the OSD control software 230 can detect such an operation in real time and generate an OSD start command So. Wherein, the above-mentioned specific mode is, for example: when holding (Hold) the control element 242 of the cursor device 240, double clicking (double click) another control element 241 of the cursor device 240; or holding the control element 242 continuously for three seconds Clock...and so on the preset operation mode. Wherein, when the OSD control software 230 sends the OSD start command So, the OSD control software 230 will simultaneously notify the operating system 220 to open the operation window 312 . Similarly, the OSD close command Sc is generated in addition to the above-mentioned generation based on whether any OSD operation is performed within a predetermined time after the OSD menu 322 and the control window 312 are opened, the OSD control software 230 can also be based on the cursor device 240 operation to generate an OSD shutdown command Sc. For example, when the OSD menu 322 and the control window 312 are opened, if the user operates the cursor device 240 in the above-mentioned specific mode again, the OSD control software 230 will generate an OSD closing command Sc. In another embodiment of the present invention, when the user wants to close the OSD control software 230, the OSD control software 230 will generate and send the OSD close command Sc to the OSD driving circuit 110 immediately before it is actually closed. Wherein, when the OSD control software 230 sends the OSD close command Sc, the OSD control software 230 will simultaneously notify the operating system 220 to close the operation window 312 .

According to an embodiment of the present invention, a general flowchart of the method for controlling the OSD operation of the display 100 may be shown in FIG. 3 . Please refer to Figure 3. FIG. 3 is a flowchart of a method for controlling an On-Screen-Display (OSD) operation of a display according to an embodiment of the present invention. The method includes the following steps:

Step S310: the display 100 receives the OSD start command So from the host 200 through the signal channel 150;

Step S320: The display 100 drives the display panel 120 to display the OSD menu 322 according to the OSD start command So;

Step S330: the display 100 receives the OSD execution command Sc and the coordinate S1 of the cursor 314 on the display panel 120 from the host 200 through the signal channel 150;

Step S340: The display 100 executes the OSD operation of the display 100 according to the received OSD execution command Sc and the coordinate S1.

In order to further illustrate the method for controlling the OSD operation of the display 100 of the present invention, the following description will be described from the perspectives of the display 100 and the host 200 respectively. Firstly, from the perspective of the display 100 , please refer to FIG. 4 . FIG. 4 is a flow chart of controlling the OSD operation of the display 100 of the display 100 of FIG. 1 according to an embodiment of the present invention, and the flow therein includes the following steps:

Step S410: preset the OSD function of the display 100 to be controlled by the physical buttons 131 to 133 of the display 100;

Step S420: the microprocessor 114 judges whether an external OSD command (such as: OSD opening command So, OSD closing command Sc and OSD execution command Sc1) is received; if so, then execute step S430; otherwise, then repeat steps S410 and S420;

Step S430: the microprocessor 114 judges whether the received external OSD command is an OSD shutdown command Sc; if so, execute step S440; otherwise, execute step S450;

Step S440: In response to the received OSD closing command Sc, the microprocessor 114 controls the display panel 120 to close (ie: stop displaying) the OSD menu 322;

Step S450: the microprocessor 114 judges whether the received external OSD instruction is an OSD opening instruction Oo; if so, execute step S460; otherwise, execute step S470;

Step S460: the microprocessor 114 controls the display panel 120 to open and initialize the OSD menu 322, so that the OSD menu 322 overlaps the control window 312 completely;

Step S470: The microprocessor 114 judges whether the OSD menu 322 completely overlaps the control window 312; if so, execute step S490; otherwise, execute step S480;

Step S480: the microprocessor 114 controls the display panel 120 to initialize the OSD menu 322, so that the OSD menu 322 overlaps the control window 312 completely; and

Step S490 : The microprocessor 114 controls the display panel 120 to perform an OSD operation according to the coordinate S1 of the cursor 314 on the display panel 120 .

The purpose of initializing the OSD menu 322 is to determine the position of the OSD menu 322 and make the initialized OSD menu 322 completely overlap with the control window 312 . Specifically, when performing the initialization operation of the OSD menu 322, the microprocessor 114 will determine the position of the OSD menu 322 according to the coordinate S1 of the cursor 314, and determine the size of the control window 312 according to the size of the OSD menu 322, so that the control The window 312 has the same size as the OSD menu 322 and makes the control window 312 completely overlap the OSD menu 322 . The microprocessor 114 determines the position of the OSD menu 322 according to the coordinate S1 of the cursor 314. Better and friendlier visual and operating experience when operating OSD. In addition, when the microprocessor 114 determines the size of the control window 312 according to the size of the OSD menu 322, the microprocessor 114 will send back information about the size Sz of the OSD menu 322 and the position S2 of the OSD menu 322 on the display panel 120 to the host computer. Terminal 200, so that the operating system 220 of the host terminal 200 opens the control window 312 according to the size Sz of the OSD menu 322 and the position S2 of the OSD menu 322 on the display panel 120, and the opened control window 312 will be completely consistent with the OSD menu 322 overlapping. In addition, in an embodiment of the present invention, when the display resolution of the display panel 120 is changed, the microprocessor 114 will also perform the operation of initializing the OSD menu 322, and at this time, the host terminal 200 will use the operating system 220 according to the adjusted The display resolution of the display panel 120 adjusts the size of the control window 312, so that the size of the adjusted control window 312 is the same as the size of the OSD menu 322; on the other hand, when the display resolution of the display panel 120 is changed, the micro The processor 114 adjusts the position of the OSD menu 322 on the display panel 120 according to the adjusted display resolution of the display panel 120 and the current coordinates of the cursor 314 on the display panel 120, so that the OSD menu 322 is completely consistent with the control window 312. overlapping. In addition, in another embodiment of the present invention, through the above operation of initializing the OSD menu 322 , the OSD menu 322 can be completely displayed by the display panel 120 , and the OSD menu 322 can be prevented from being cut by the edge of the display panel 120 .

The following will be described from the perspective of the host end 200 . Please refer to FIG. 5 . FIG. 5 is a flow chart of controlling the OSD operation of the display 100 by the host terminal 200 of FIG. 1 according to an embodiment of the present invention, and the process includes the following steps:

Step S510: Initialize the OSD control software 230, so that the control window 312 opened later can completely overlap with the OSD menu 322;

Step S512: the OSD control software 230 monitors events of the cursor device 240;

Step S514: The OSD control software 230 determines whether the display resolution of the display 100 has changed; if it has changed, repeat steps S510 and S512; otherwise, execute step S516;

Step S516: The OSD control software 230 determines whether the control window 312 has been opened; if the control window 312 has been opened, then execute step S518; otherwise, execute step S524;

Step S518: The OSD control software 230 determines whether the control window 312 is controlled to be closed; if the control window 312 is to be closed, then execute step S520; otherwise, execute step S530;

Step S520: the OSD control software 230 notifies the operating system 220 to close the control window 312;

Step S522: the OSD control software 230 sends the OSD closing command Sc to the OSD driving circuit 110 through the signal channel 150, so as to control the display 100 to close the OSD menu 322;

Step S524: The OSD control software 230 determines whether the control window 312 is controlled to be opened; if the control window 312 is to be opened, then perform step S526; otherwise, repeat step S512;

Step S526: the OSD control software 230 notifies the operating system 220 to open the control window 312;

Step S528: the OSD control software 230 sends the OSD start command So to the OSD driving circuit 110 through the signal channel 150, so as to control the display 100 to open the OSD menu 322;

Step S530: the OSD control software 230 judges whether the cursor 314 controlled by the cursor device 240 is clicked on the control window 312; if so, execute step S532; otherwise, repeat step S512; and

Step S532: The OSD control software 230 transmits the OSD execution command Scl and the coordinate S1 of the cursor 314 to the OSD driving circuit 110 through the signal channel 150, so as to control the display 100 to perform corresponding OSD operations according to the coordinate S1 of the cursor 314.

To sum up, according to the OSD driving circuit and the control method thereof in each embodiment of the present invention, the display can receive the OSD execution command and the coordinates of the cursor from the host through the signal channel, so that the microprocessor of the OSD driving circuit can The received OSD execution command and the coordinates of the cursor control the display to perform the corresponding OSD operation. In this way, the user can operate the OSD of the display through the external cursor device, so as to adjust the relevant operating parameters of the display.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope of the present invention.

Claims (9)

1. A method for controlling an On-Screen-Display (OSD) operation of a display, comprising: The display receives an OSD opening command from a host through a signal channel; The display drives a display panel of the display to display an OSD menu according to the OSD opening command; The display receives an OSD execution command and the coordinates of a cursor on the display panel from the host side through the signal channel, wherein the OSD execution command is generated in response to an operation of a cursor device on the host side, and the cursor movement on the display panel is controlled by the cursor device; and The display controls the display to perform OSD operations according to the received OSD execution command and the coordinates, Wherein a microprocessor of the display returns the information of the size of the OSD menu and the position of the OSD menu on the display panel to the host, so that an operating system of the host opens a control window, wherein the OSD The menu is a translucent menu, and the display panel displays the control window at the lower layer of the OSD menu, and the control window and the OSD menu completely overlap, Wherein the control window is a blank window of the operating system. When the control window is opened, the control window covers the overlapping parts of other windows of the operating system and the OSD menu. 2. An on-screen display (On-Screen-Display; OSD) driving circuit is arranged in a display to control the OSD operation of the display, and the on-screen display driving circuit includes: A signal port, coupled to a signal channel, is used to successively receive an OSD opening command and an OSD execution command from a host end through the signal channel, wherein the OSD execution command is in response to a cursor device on the host end operation, and the movement of a cursor displayed on a display panel of the display is controlled by the cursor device; and A microprocessor, coupled to the signal port, is used to drive the display panel of the display to display an OSD menu according to the OSD opening command, and is used to control the display to perform OSD operations according to the OSD execution command and the coordinates of the cursor , Wherein the microprocessor is also used to send back information about the size of the OSD menu and the position of the OSD menu on the display panel to the host, so that an operating system at the host can open a control window, wherein the OSD The menu is a translucent menu, and the display panel displays the control window at the lower layer of the OSD menu, and the control window and the OSD menu completely overlap, Wherein the control window is a blank window of the operating system. When the control window is opened, the control window covers the overlapping parts of other windows of the operating system and the OSD menu. 3. The screen display driving circuit according to claim 2, wherein when the display resolution of the display panel changes, the host side adjusts the size of the control window according to the adjusted display resolution, and the microprocessor The position of the OSD menu on the display panel is adjusted according to the adjusted display resolution and the current coordinate of the cursor on the display panel. 4. The screen display driving circuit according to claim 2, wherein the microprocessor also drives the display panel to display the OSD menu according to the coordinates, so that the display area of the OSD menu on the display panel covers The display area for this cursor. 5. The screen display driving circuit according to claim 2, wherein the OSD menu includes a plurality of graphical options, and the microprocessor judges which graphical option the coordinates correspond to in the graphical options, so as to The display is made to execute the OSD operation corresponding to the graphic option according to the graphic option determined by the microprocessor. 6. The screen display driving circuit according to claim 2, wherein the OSD execution command is generated in response to a click operation of the cursor device. 7. The screen display driving circuit according to claim 2, wherein when the display panel displays the OSD menu, and when the microprocessor receives an OSD shutdown command from the signal channel, the microprocessor according to the OSD close command, close the OSD menu. 8. The screen display drive circuit according to claim 2, wherein the signal channel is set in a video cable, and the display receives a video signal from the host through the video cable, and according to the video signal , driving the display panel to display a corresponding picture. 9. The screen display driving circuit according to claim 2, wherein the display is connected to the host end through a signal cable, the signal channel is set in the signal cable, and the display is further connected through a video cable The cable receives a video signal from the host end, the video cable is different from the signal cable, and the display controls the display panel to display corresponding images according to the video signal.

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