CN102043499B - Touch display device, touch display system and method for adjusting touch area - Google Patents

Abstract

A touch display device, a touch display system and a method for adjusting a touch area are provided. The touch display device can receive the image signal and display an image picture representing the image signal, and comprises a touch module for providing a touch area with a touch function; the touch control module obtains the signal resolution and the display state of the image signal through the display state adjusting module to judge whether the display simultaneously displays the image picture and a dead area, wherein the dead area is an area where the display does not display the image picture; if so, the touch module adjusts the coordinates of the touch area so that the touch area corresponds to the range of the image picture. The technical scheme of the invention can adjust the touch area and is more convenient to operate.

Description

Touch display device, touch display system and method for adjusting touch area

technical field

The present invention relates to a touch display device, a touch display system and a method for adjusting a touch area thereof, in particular to a touch display device capable of adjusting a touch area, a touch display system and a method for adjusting a touch area .

Background technique

公司所推出的新一代操作系统

7为例，该操作系统已经支持触控显示系统。With the advancement of technology, the applications of touch display systems are also increasing. micro

The new generation operating system launched by the company

7 as an example, the operating system already supports the touch display system.

In the prior art, the touch display system usually displays the image signal output by the computer system on the touch display device, and then returns the touched coordinates in the touch area to the computer system for operation. The prior art also discloses a touch display device, the touch module of which is arranged in front of a general display using a transparent touch panel, and the touch module can return the coordinate signal touched on the touch panel to the computer system , to control the computer system.

Therefore, generally speaking, the image screen displayed by the touch display device should be consistent with the touch area. However, in the prior art, since the specifications, sizes, and signal resolutions of the monitors are set differently, the monitors have display state settings, such as aspect, full, or 1:1 display settings. Among them, Aspect is to make the video screen displayed on the monitor show the effect of the top and bottom edges, and 1:1 is to display the video screen in the center of the monitor in a point-to-point manner with real resolution, but in this way, the top and bottom of the monitor Or there may be inactive areas on the left and right, where the inactive areas are areas where the display does not display images, and are also commonly known as black areas.

Please refer to FIG. 1 below, which is a schematic diagram of a display screen of a touch display device in the prior art. As shown in Figure 1, assuming that the display state is set to 1:1 at this time, and the video resolution is 1280*800, then due to the setting of the signal resolution and display state, the video screen 92 will be displayed on the display screen 90 at the same time. And ineffective area 93. However, the touch module cannot know the range of its image frame 92 , so it still regards the touch area 91 as the size of the entire display frame 90 . Therefore, when the user wants to press the pressing point A of the image screen 92, in fact, the pressing point A' must be pressed to correspond to the pressing point A. Therefore, it will be extremely inconvenient for the user.

In view of this, it is necessary to invent a new touch display system and a method for adjusting the touch area to solve the deficiency of the prior art.

Contents of the invention

The main purpose of the present invention is to provide a touch display device, which has the effect of adjusting the touch area.

Another main purpose of the present invention is to provide a touch display system, which also has the effect of adjusting the touch area.

Another main purpose of the present invention is to provide a method for adjusting the touch area.

To achieve the above purpose, the touch display device of the present invention can receive an image signal and display an image frame representing the image signal. The touch display device includes a touch module and a display. The touch module is used for providing a touch area with touch function. The monitor is used for displaying video images. The display has a display state adjustment module, which is used to control the display state of the display. The range of the image frame is determined by the signal resolution of the image signal and the display state. The touch module obtains the signal resolution and display state of the image signal through the display state adjustment module, so as to judge whether the display simultaneously displays the image image and the inactive area, wherein the inactive area is the area where the display does not display an image image; if so, touch The control module adjusts the coordinates of the touch area so that the touch area corresponds to the range of the corresponding image frame.

The touch display system of the present invention includes a computer system and a touch display device. The computer system has an operating system for outputting image signals. The touch display device is electrically connected with the computer system to receive image signals and display image frames representing the image signals. The touch display device includes a touch module and a display. The touch module is used for providing a touch area with touch function. The monitor is used for displaying video images. The display has a display state adjustment module, which is used to control the display state of the display. The range of the image frame is determined by the signal resolution of the image signal and the display state. The operating system is used to know the signal resolution and display state of the image signal, so as to judge whether the display displays the image image and the inactive area at the same time, wherein the inactive area is the area where the image image is not displayed on the display; if so, the touch module or operation The system adjusts the coordinates of the touch area so that the touch area corresponds to the range of the image frame.

The method for adjusting the touch area of the present invention is used in a touch display device. The touch display device provides a touch area with a touch function. The method includes the following steps: receiving an image signal, and displaying a representative image signal on the touch display device Detect and obtain the signal resolution of the video signal; detect and obtain the display status displayed by the touch display device, wherein the signal resolution and display status determine the range of the video screen; determine whether the touch display device displays the video screen at the same time and an inactive area, wherein the inactive area is an area where no video image is displayed in the display screen (touch display device); correspond.

The technical solution of the invention can adjust the touch area, so that the user can operate more conveniently.

Description of drawings

FIG. 1 is a schematic diagram of a display screen of a touch display device in the prior art.

FIG. 2 is a structural diagram of the touch display system of the present invention.

FIG. 3 is a schematic diagram of a display screen of the touch display device of the present invention.

FIG. 4 is a flow chart of the steps of the first embodiment of the method for adjusting the touch area of the present invention.

FIG. 4A is a schematic diagram of the touch display device of the present invention after adjusting the touch area.

FIG. 5 is a flow chart of the steps of the second embodiment of the method for adjusting the touch area of the present invention.

FIG. 6 is a flow chart of the steps of the third embodiment of the method for adjusting the touch area of the present invention.

FIG. 7 is a schematic diagram of a new operation screen displayed by the touch display device of the present invention.

Description of main component symbols:

Prior Art Display 12

Display screen 90 Display status adjustment module 121

Touch Area 91 Computer System 20

Video screen 92 Operating system 21

Inactive area 93 Display screen 30

Press point A, A' Touch area 31

Video screen 32

The present invention has no effect area 33

Touch display system 1 New operating area 34

Touch display device 10 New operation screen 35

Touch Module 11 Comparison Table T

Detailed ways

In order to make the above and other objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention are listed below and described in detail in conjunction with the accompanying drawings.

Please refer to FIG. 2 and FIG. 3 at the same time, which are related schematic diagrams of the touch display system and the display screen of the present invention, wherein FIG. 2 is a structure diagram of the touch display system of the present invention, and FIG. 3 is a display of the touch display device of the present invention. Screen diagram.

The touch display system 1 of the present invention includes a touch display device 10 , a computer system 20 and a comparison table T. As shown in FIG. The touch display device 10 is electrically connected to the computer system 20 to receive image signals. The touch display device 10 includes a touch module 11 and a display 12 . The touch module 11 provides a touch area 31 with a touch function, so that the user can control the computer system 20 in the touch area 31 by touch. The display 12 has a display function, and can display an image frame 32 representing an image signal on its display screen 30 . The display 12 has a display state adjustment module 121 , and the display state adjustment module 121 can control the setting of the display state of the display 12 , such as aspect, full or 1:1 display settings. By setting the display state, the image frame 32 can be normally displayed in the center of the display 12, and presented by the upper and lower top edges or in a real point-to-point manner. In an embodiment of the present invention, the display state adjustment module 121 may be composed of electronic circuits, software, hardware, firmware or a combination thereof, but the present invention is not limited thereto.

The computer system 20 has an operating system 21 capable of supporting touch functions, and is used to output image signals to the display 12 to display an image frame 32 representing the image signals. The video signals all have their video resolutions. By matching different image resolutions and display states, different ranges of image frames 32 can be displayed on the display screen 30 .

The following is an example of display screen 30 shown in FIG. 800. It can be known from FIG. 3 that in addition to displaying the video frame 32 , the display screen 30 also includes a non-active area 33 , wherein the non-active area 33 is an area where the display 12 does not display the video frame 32 . At this time, the touch display system 1 is adjusted by the operating system 21 or the touch module 11 so that the range of the touch area 31 corresponds to the image frame 32 . The adjustment method will be described in detail later, so it will not be repeated here.

Moreover, the touch display system 1 may also have a comparison table T, which is used to store the corresponding results of the image resolution and the display state. The touch display system 1 can know the coordinates to be adjusted of the touch area 31 by comparing the image resolution and the display state with the comparison table T. The comparison table T can be established in different modules according to the requirements of different implementations, and the present invention is not limited thereto. The detailed comparison method will be described in detail later, so it will not be repeated here.

Next, please refer to FIG. 4 to FIG. 6 , which are flowcharts of steps of various implementations of the method for adjusting the touch area of the present invention. It should be noted here that although the following embodiments use the touch display system 1 with the touch display device 10 as an example to illustrate the method for adjusting the touch area of the present invention, the method for adjusting the touch area of the present invention does not It is not limited to use in the touch display system 1 .

First of all, please refer to FIG. 4 , which is a flow chart of the steps of the first embodiment of the method for adjusting the touch area of the present invention.

First proceed to step 401: receive an image signal, and display an image frame representing the image signal on the touch display device.

The computer system 20 transmits the image signal to the touch display device 10 . After receiving the image signal, the touch display device 10 can display an image frame 32 representing the image signal on the display 12 .

Then proceed to step 402 : detect and obtain the signal resolution and the display state by the display state adjustment module.

In this step 402, the display state adjustment module 121 detects and obtains the signal resolution of the image signal transmitted from the computer system 20, and obtains the resolution set by the display state adjustment module 121 itself, that is, the touch display device 10 The displayed display state.

Then go to step 403: judge whether to display the image frame and the inactive area at the same time by the touch module or the display state adjustment module.

In this step 403 , the determination can be made by the touch module 11 or the display state adjustment module 121 .

In the following, the implementation of judging by the touch module 11 is taken as an example for description. In this embodiment, the comparison table T is set in the touch module 11 . Since the signal resolution and display state have been detected in step 402 , the display state adjustment module 121 transmits the detection result to the touch module 11 . According to the detection result, the touch module 11 directly checks the comparison table T to know what the display screen 30 is at this time. In this way, the touch module 11 can determine whether the display 12 displays the image frame 32 and the inactive area 33 at the same time.

On the other hand, the display state adjustment module 121 may directly query the comparison table T for judgment after knowing the signal resolution and the display state. In this embodiment, the comparison table T is set in the display state adjustment module 121 . Then the display state adjustment module 121 judges whether the display 12 displays the image frame 32 and the inactive area 33 at the same time, and then generates a corresponding signal according to the judgment result. Finally, the corresponding signal is transmitted to the touch module 11, so that the touch module 11 can directly perform subsequent processing. In this way, the touch module 11 can directly know whether the display 12 displays the image frame 32 and the inactive area 33 at the same time through the corresponding signal.

It should be noted that the touch module 11 or the display state adjustment module 121 can also directly calculate whether the inactive area 33 will be displayed according to the display state and signal resolution.

The data transmission between the above-mentioned touch module 11 and the display state adjustment module 121 can be transmitted through its internal integrated circuit (Inter-Integrated Circuit, I2C), but the present invention is not limited thereto.

If only the image frame 32 is displayed on the display screen 30, it means that the touch area 31 and the image frame 32 are already in a corresponding state, and thus the above-mentioned determination process ends.

If the image frame 32 and the inactive area 33 are displayed on the display screen 30 at the same time, it means that the range of the touch area 31 and the image frame 32 do not match, so step 404 is performed: adjusting the coordinates of the touch area by the touch module , so that the touch area corresponds to the range of the image screen.

For this step 404, please also refer to FIG. 4A , which is a schematic diagram of the adjusted touch area of the touch display device of the present invention.

By looking up the comparison table T or directly calculating according to the signal resolution and display state, the touch module 11 already knows what the range of the image frame 32 is under the signal resolution and display state. Therefore, in step 404 , as shown in FIG. 4A , the touch module 11 redefines the start and end coordinates of the touch area 31 so that the start and end coordinates correspond to the range of the image frame 32 .

In this way, the user can precisely operate the touch display device 10 .

It should be noted that this embodiment can also continue to step 405: redefine the range of the inactive area to increase the range of the touch area.

After the step of readjusting the coordinates of the touch area 31 in step 404, the touch module 11 can also redefine the range of the inactive area 33 to increase the range of the touch area 31 so that the touch area 31 can be more compatible with The ranges of the image frames 32 correspond to each other. In detail, the touch module 11 can set the range of the touch area 31 to be slightly larger than the range of the image frame 32 , that is, slightly cover the inactive area 33 , so as to increase the range of the touch area 31 . In this way, it will be more convenient for the user to operate the buttons located at the four corners of the touch area 31 , for example, when pressing the “close window” button.

The method for adjusting the touch area of the present invention can also be achieved by using the second embodiment described below. Next, please refer to FIG. 5 . FIG. 5 is a flow chart of the steps of the second embodiment of the method for adjusting the touch area of the present invention.

The second embodiment of the method for adjusting the touch area of the present invention firstly performs step 501 : receiving an image signal, and displaying an image frame representing the image signal on the touch display device.

Same as step 401 , the computer system 20 transmits the image signal to the touch display device 10 , so that the touch display device 10 can display the image frame 32 on the display 12 after receiving the image signal.

Next, proceed to step 502: detect and obtain signal resolution and display status through the operating system or the display status adjustment module.

In this step 502 , the operating system 21 detects and obtains the signal resolution of the image signal output by the computer system 20 itself, and obtains the display state displayed by the touch display device 10 through the display state adjustment module 121 . On the other hand, the operating system 21 can also use the display state adjustment module 121 to simultaneously detect and obtain its display state and the resolution of the returned signal, and the present invention is not limited thereto.

Data transmission can be performed between the computer system 20 and the display state adjustment module 121 through a Display Data Channel/Command Interface (DDC/CI), but the present invention is not limited thereto.

Then proceed to step 503 : determine whether to display the image frame and the inactive area at the same time by the operating system.

In this embodiment, the comparison table T is established in the operating system 21 . After knowing the signal resolution and display state, the operating system 21 uses the query table T to determine whether the signal resolution and display state will display the image frame 32 and the inactive area 33 on the display screen 30 . On the other hand, the operating system 21 can also directly calculate whether to display the inactive area 33 according to the display status and signal resolution.

If the inactive area 33 is not displayed on the display screen 30, the adjustment process is ended.

If the display screen 30 displays the inactive area 33 , proceed to step 504 : adjust the coordinates of the touch area through the operating system, so that the touch area corresponds to the range of the video image.

Since the operating system 21 knows the range of the inactive area 33 by querying the comparison table T or directly calculating according to the signal resolution and display state, so in step 504, the computer system 20 changes the setting of the operating system 21, The touch signals controlling the inactive area 33 are directly filtered out to redefine the coordinates of the touch area 31 . In other words, when the computer system 20 processes the touch signal transmitted from the touch module 11, it directly changes the touch signal to the corresponding position on the image screen 32, while the touch signal or image in the inactive area 33 is deemed not to exist. In this way, as shown in FIG. 4A , the operating system 21 can directly use its internal settings to reposition the coordinates of the touch area 31 so that they can correspond to the image screen 32 .

Similarly, the second embodiment can continue to step 505: redefine the range of the inactive area to increase the range of the touch area.

The operating system 21 can also set the range that the touch signal can receive to be slightly larger than the range of the image screen 32, so as to increase the range of the touch area 31, so that the touch area 31 can be more corresponding to the range of the image screen 32 , for user convenience.

Next, please refer to FIG. 6 . FIG. 6 is a flow chart of the steps of the third embodiment of the method for adjusting the touch area of the present invention.

First proceed to step 601: receive an image signal, and display an image frame representing the image signal on the touch display device.

This step 601 is the same as step 501. The computer system 20 transmits the image signal to the touch display device 10 , so that the touch display device 10 can display an image frame 32 on the display 12 after receiving the image signal.

Then go to step 602: detect and obtain the signal resolution and display status through the operating system or the display status adjustment module.

The operating system 21 detects and obtains the signal resolution transmitted by the computer system 20 itself, or simultaneously obtains the signal resolution and its display state from the display state adjustment module 121 . This step 602 is the same as step 502 .

Then proceed to step 603 : judge whether to display the image frame and the inactive area at the same time by the operating system.

The operating system 21 determines whether the image frame 32 and the inactive area 33 are displayed on the display screen 30 by using the comparison table T or directly performing calculations based on the display status and signal resolution. This step 603 is the same as step 503.

If the inactive area 33 is not displayed on the display screen 30, the adjustment process is ended.

If the display screen 30 displays the inactive area 33 , proceed to step 604 : adjust the coordinates of the touch area by the touch module, so that the touch area corresponds to the range of the image frame.

That is, as shown in FIG. 4A , the operating system 21 transmits the determined corresponding signal to the touch module 11, so that the touch module 11 redefines the coordinates of the start and end of the touch area 31 so that it can conform to the image frame 32 range, so that the touch area 31 corresponds to the range of the image screen 32 .

The transmission between the above corresponding signals can be achieved through the USB interface, but the present invention is not limited thereto.

Similarly, the third embodiment may continue to step 605: redefine the range of the inactive area to increase the range of the touch area.

In this step 605, the touch module 11 can set the range of the touch area 31 to be slightly larger than the range of the image screen 32, so as to increase the range of the touch area 31, so that the touch area 31 can be more closely aligned with the range of the image screen 32. The ranges correspond to each other to facilitate user operation.

It should be noted here that the method for adjusting the touch area of the present invention is not limited to the order of the above steps, as long as the purpose of the present invention can be achieved, the order of the above steps can also be changed.

On the other hand, the present invention also includes another embodiment. Please refer to FIG. 7 . FIG. 7 is a schematic diagram showing a new operation screen displayed by the touch display device of the present invention.

In the above-mentioned first and third embodiments, since the touch module 11 is used to redefine the coordinates of the touch area 31, the touch module 11 can also redefine a new operation within the range of the inactive area 33. Coordinates of area 34. The new operation area 34 can provide shortcut key operations such as sending and receiving emails, so as to control the computer system 20 . On the other hand, the new operation area 34 can also provide basic controls corresponding to the display 12 , such as adjusting the brightness or contrast of the image screen, etc., but the present invention is not limited thereto. At the same time, the display 12 can increase and display the new operation picture 35 within the scope of the inactive area 33 , so that the new operation area 34 can correspond to the new operation picture 35 . The way to display the new operation picture 35 can utilize the On-Screen Display (OSD) technology of the display 12, but the present invention is not limited to this way. Since the touch module 11 has defined the coordinates of the new operation area 34, when the user presses the new operation screen 35, the touch module 11 transmits the control command to the computer system 20 or the display 12, so that the user can operate more conveniently. Computer system 20 or display 12 .

To sum up, the present invention, regardless of its purpose, means, and efficacy, shows its characteristics that are completely different from the known technology. I urge the examiner to be aware of it and grant a patent as soon as possible to benefit the society. I really appreciate it. However, it should be noted that the above-mentioned embodiments are only examples for the convenience of description, and the scope of rights claimed in the present invention should naturally be based on the scope of the claims, rather than limited to the above-mentioned embodiments.

Claims (20)

1. touch control display apparatus, this touch control display apparatus can receive a signal of video signal, and shows an image frame that represents this signal of video signal, and this touch control display apparatus comprises:

One touch-control module is in order to provide the touch area with touch controllable function; And

One display, in order to show this image frame, this display has a show state adjusting module, in order to control a show state of this display, wherein the scope of this image frame determines by a signal resolution and this show state of this signal of video signal, this touch-control module is learnt this signal resolution and this show state of this signal of video signal via this show state adjusting module, to judge whether this display shows this image frame and territory, a neutral zone simultaneously, wherein this territory, neutral zone does not show the zone of this image frame for this display; If then this touch-control module is adjusted the coordinate of this touch area, so that this touch area is corresponding with the scope of this image frame.

2. touch control display apparatus as claimed in claim 1, wherein this show state adjusting module is compared this signal resolution and this show state according to comparison list or is directly calculated according to this signal resolution and this show state, to export a respective signal to this touch-control module, judge for this touch-control module whether this display shows this image frame and this territory, neutral zone simultaneously.

3. touch control display apparatus as claimed in claim 1, wherein this touch-control module is compared this signal resolution and this show state according to comparison list or is directly calculated according to this signal resolution and this show state, whether shows simultaneously this image frame and this territory, neutral zone to judge this display picture.

4. touch control display apparatus as claimed in claim 1, wherein this touch-control module redefines the scope in this territory, neutral zone, to increase the scope of this touch area, so that this touch area is corresponding with the scope of this image frame.

5. touch control display apparatus as claimed in claim 1, wherein this touch-control module redefines the scope in this territory, neutral zone, with a newly-increased new operating area, and this display demonstration one new operation screen, so that this new operating area is corresponding with the scope of this new operation screen.

6. touch control display system, this touch control display system comprises:

One computer system has an operating system, in order to export a signal of video signal; And

One touch control display apparatus, this touch control display apparatus and this computer system are electrically connected, and to receive this signal of video signal and to show an image frame that represents this signal of video signal, this touch control display apparatus comprises:

One touch-control module is in order to provide the touch area with touch controllable function; And

One display, in order to show this image frame, this display has a show state adjusting module, and in order to control a show state of this display, wherein the scope of this image frame determines by a signal resolution and this show state of this signal of video signal; Whether this signal resolution and this show state of this operating system in order to learn this signal of video signal shows this image frame and territory, a neutral zone simultaneously to judge this display, and wherein this territory, neutral zone does not show the zone of this image frame for this display; If then this touch-control module or this operating system are adjusted the coordinate of this touch area, so that this touch area is corresponding with the scope of this image frame.

7. touch control display system as claimed in claim 6, wherein this operating system is learnt this show state via this show state adjusting module.

8. touch control display system as claimed in claim 6, wherein this operating system is learnt this signal resolution and this show state via this show state adjusting module.

9. touch control display system as claimed in claim 6, wherein this operating system is compared this signal resolution and this show state according to comparison list or is directly calculated according to this signal resolution and this show state, whether shows simultaneously this image frame and this territory, neutral zone to judge this display.

10. touch control display system as claimed in claim 6, wherein this touch-control module or this operating system redefine the scope in this territory, neutral zone, to increase the scope of this touch area, so that this touch area is corresponding with the scope of this image frame.

11. touch control display system as claimed in claim 6, wherein this touch-control module redefines the scope in this territory, neutral zone, with a newly-increased new operating area, and this display demonstration one new operation screen, so that this new operating area is corresponding with the scope of this new operation screen.

12. a method of adjusting the touch area is used for a touch control display apparatus, this touch control display apparatus provides the touch area with touch controllable function, and the method may further comprise the steps:

Receive a signal of video signal, and show an image frame that represents this signal of video signal at this touch control display apparatus;

Detect and obtain a signal resolution of this signal of video signal;

Detection also obtains the shown show state of this touch control display apparatus, and wherein this signal resolution and this show state determine the scope of this image frame;

Judge whether this touch control display apparatus shows this image frame and territory, a neutral zone simultaneously, wherein this territory, neutral zone does not show the zone of this image frame for this touch control display apparatus; And

If then adjust the coordinate of this touch area, so that this touch area is corresponding with the scope of this image frame.

13. the method for adjustment as claimed in claim 12 touch area is further comprising the steps of:

Utilize an operating system to detect and obtain this signal resolution of this signal of video signal; And

Detect and obtain this show state via a show state adjusting module.

14. the method for adjustment as claimed in claim 12 touch area is further comprising the steps of:

Detect and obtain this signal resolution and this show state via a show state adjusting module.

15. the method for adjustment as claimed in claim 12 touch area, the step of wherein adjusting this touch area is further comprising the steps of:

Utilize an operating system to redefine the coordinate of this touch area, so that this touch area is corresponding with the scope of this image frame.

16. the method for adjustment as claimed in claim 15 touch area is further comprising the steps of:

Redefine the scope in this territory, neutral zone, to increase the scope of this touch area, so that this touch area is corresponding with the scope of this image frame.

17. the method for adjustment as claimed in claim 12 touch area, the step of wherein adjusting this touch area is further comprising the steps of:

Utilize a touch-control module to redefine the coordinate of this touch area, so that this touch area is corresponding with the scope of this image frame.

18. the method for adjustment as claimed in claim 17 touch area is further comprising the steps of:

Redefine the scope in this territory, neutral zone, to increase the scope of this touch area, so that this touch area is corresponding with the scope of this image frame.

19. such as the method for the described adjustment touch area of claim 17, further comprising the steps of:

Redefine the scope in this territory, neutral zone, with a newly-increased new operating area; And

Show a new operation screen, so that this new operating area is corresponding with the scope of this new operation screen.

20. the method for adjustment as claimed in claim 12 touch area judges wherein whether this touch control display apparatus shows simultaneously that the step in this image frame and this territory, neutral zone is further comprising the steps of:

Compare this signal resolution and this show state by comparison list; Perhaps

Directly calculate according to this signal resolution and this show state.

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