TW201438000A - Method for forming screen wall by splicing display device - Google Patents

Abstract

The invention relates to a method for forming a screen wall by splicing a plurality of display devices. The method includes steps: arranging N display devices as a matrix form; entering separately a splicing function menu of the display devices; setting separately a splicing amount regarding to an amount of the display devices needed to splice the screen wall as ''N''; setting separately a splicing position regarding to a position of the display devices correspond to the matrix; inputting a image signal to the display devices; capturing 1/N part of the image signal correspond to the splicing position and displaying the captured part on a screen of the display devices. Comparing to the prior art, the invention has no need to use a image splicing processor, so as to decrease the cost.

Description

Display device splicing method for forming video wall

The present invention relates to a splicing method, and more particularly to a method of splicing a video wall into a display device.

A screen wall is a multi-screen TV wall that can display large images by splicing a plurality of display devices. It is also an image and graphic display system. The video wall can be regarded as a computer that can be displayed from a computer. Mega display screen with VGA signal or multiple video signals. By transmitting video or computer VGA signals to the video wall, the video wall can display clear, colorful, high-brightness complex full-color multimedia graphics information, which is the best way to display, publicize and advertise mobile images.

At present, the image splicing processor plays a very important role in realizing the role of the video wall. The image splicing processor is also called a video wall controller, a video wall splicer, a splicing wall controller, a multi-screen processor, a multi-screen splicing processor, a display wall splicer, a digital splicing processor, a multi-screen image processor or a display. Wall processor, etc. Its main function is to divide a complete image signal into N blocks and assign them to N display devices (such as TV or projector) to complete a large dynamic image display screen with multiple display devices, which can support the input of various video devices. Such as: camera, satellite receiver, set-top box or computer. The image splicing processor can realize the combination of multiple signal outputs into a super-high resolution signal with a resolution superimposed, so that the video wall forms a logic display screen with ultra-high resolution, ultra-high brightness and large display size, and completes multiple signals. The source (network signal, RGB signal, and video signal) display functions in various ways such as window movement and zoom on the TV wall. It is widely used in government offices, electric power, water conservancy, telecommunications, commercial venues or various types of exhibitions and other television walls. However, due to the price of the image splicing processor, the cost of the video wall is still high.

In view of this, the object of the present invention is to provide a method for splicing a video wall into a display device, which omits the image splicing processor, so as to reduce the cost of the video wall.

In order to achieve the above object, the present invention provides a method for splicing a video wall into a display device, comprising the steps of: arranging N display devices into a matrix; respectively entering a splicing function menu of the display devices; respectively setting a display to be spliced into a video wall The number of splicings of the device is N; respectively, the display devices respectively correspond to the splicing positions in the matrix; input image signals to the display devices; and respectively capture 1 of the image signals corresponding to the splicing positions The /N portion is displayed on the screen of the display devices.

In an embodiment of the invention, the method further comprises: enlarging the image signal corresponding to the 1/N portion of the stitching positions to a full screen size of the screen.

In an embodiment of the invention, after the step of separately entering the splicing function menus of the display devices, the method further comprises: opening the splicing function.

In order to achieve the above object, the present invention also provides a method for splicing a video wall into a display device, which is composed of a matrix arranged by N display devices, and the display devices respectively include a screen and a main control chip, and the main control chip Providing a capture module and a zoom module, the method comprising the steps of: inputting an image signal to the display devices; entering a splicing function menu of one of the display devices; setting a display device to be spliced into a video wall The number of the splicing is N; the display device is selected to correspond to the splicing position in the matrix, wherein the splicing position corresponds to the 1/N portion of the image signal; the setting value of the splicing number and the splicing position is stored in the display device; The image capture control signal is transmitted to the capture module; the capture module is captured and the corresponding 1/N portion of the image signal is captured as a stitched image signal; and the stitching is transmitted. Video signal to zoom module; magnifying the stitched image signal to the full screen size of the screen through the zoom module; and separately entering the remaining The splicing function menu of the display device is operated according to the above steps, and the corresponding 1/N portion of the image signal is captured and enlarged to the full screen size of the screen; wherein the display devices respectively display the image combination on the screen A complete picture of the TV wall.

In an embodiment of the invention, the display device is respectively provided with a splicing control module, and the splicing control module is provided with a splicing function menu, and the splicing function menu includes a splicing function switch option, a splicing number option and a splicing position option.

In an embodiment of the invention, one end of the capture module is connected to the splicing control module and the other end is connected to the zoom module.

In an embodiment of the invention, the splicing function switch option includes an open and close option; the splicing number option corresponds to a splicing position option.

In an embodiment of the invention, the step of storing the set value in the display device further includes storing the set value in the splicing control module.

The invention provides a method for splicing a video wall into a display device, and by adding a splicing control module to the display device, the display device can realize the function of self-splicing without installing an image splicing processor. The cost of the image stitching processor is saved when the video wall is formed.

In order to make the objects, features, and advantages of the present invention more readily understood by those of ordinary skill in the art, the following description of the preferred embodiments and the accompanying drawings.

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1 is a schematic structural view of a display device of a method for splicing a video wall by a display device according to a preferred embodiment of the present invention.
FIG. 2 is a schematic diagram of a splicing function menu of a display device according to a preferred embodiment of the present invention.

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of a display device for forming a video wall in a method for splicing a video wall by a display device according to an embodiment of the present invention. The method for splicing the video wall of the display device of the embodiment is a matrix formed by the array of N display devices, and the matrix of the N is arranged, N is a natural number greater than 1, N=axb, Where a≥1, b>1, and a and b are integers. The display devices respectively include a screen, a main control chip and a splicing control module. The screen is a display screen of the display device, which may be the display surface of the liquid crystal television or the projection surface of the projector. The main control chip is provided with a capture module and a zoom module. One end of the capture module is connected to the splicing control module and the other end is connected to the zoom module, and the splicing control module is provided with a splicing function menu. The splicing function menu includes the splicing function switch option, the splicing number option and the splicing position option (refer to FIG. 2), the splicing function switch option includes an opening and closing option, and the splicing number option and the splicing position option correspond to each other.

The method for splicing the display device to form a video wall comprises at least the following steps, but is not limited to the following sequence: arranging N sets of display devices as axb matrix, respectively entering the splicing function menus of the display devices, opening the splicing function, respectively setting The number of splicings of the display device to be spliced into a video wall is N, and each of the display devices is selected to correspond to a splicing position in the matrix, and the image signals are respectively input to the display devices, and corresponding to the image signals respectively. After being enlarged to the full screen size of the screen, the 1/N portion of the splicing position is displayed on the screen of the display devices.

More specifically, the specific steps of the method are as follows. The N display devices are arranged in a matrix of axb, so that the screens of the display devices together form a super-large screen combination, and the signal lines are connected to the respective display devices in the video wall, and the same image signals are respectively input. When set, the user enters (or opens) a splicing function menu of one of the display devices, such as clicking a corresponding physical button on the display device or an OSD (screen display menu) option of the display device to enter/open The splicing function menu. Turn on the splicing function switch option and select to open the splicing function. The number of splicing options is turned on. Since the number of display devices to be spliced into a video wall is N, the number of splicing is set to N in this option. Turning on the splicing position option, selecting the display device corresponding to the splicing position in the matrix, the option is selected according to the relative position of the display device in the video wall, wherein the splicing position corresponds to 1/1 of the image signal Part N, in order to further capture the 1/N portion of the image signal corresponding to the position. The splicing control module stores the set number of splicing and splicing position selected by the user.

The splicing control module converts the set value to an image capture control signal and transmits it to the capture module. The capture module captures the control signal according to the image, further captures the corresponding 1/N portion of the image signal, and converts the captured 1/N portion into a spliced image signal. Then, the capture module transmits the spliced image signal to the zoom module. The zoom module enlarges the stitched image signal to the full screen size of the screen, so that the image displayed on the screen of the stitched image signal can fill the screen according to a predetermined ratio. The remaining display devices that have not been set up are also opened according to the above steps, and the splicing function menu is further operated and set so that the display devices can capture the corresponding 1/N portions of the image signals one by one. Zoom in to the full screen size of the respective screen. Finally, the images displayed by each of the N display devices on their screens are combined to form a complete image of the video wall.

Please refer to FIG. 2 at the same time. FIG. 2 is a schematic diagram of a splicing function menu of the display device according to an embodiment of the present invention. In this embodiment, the number of splicing options is “4/6/9”, and the splicing position option is spliced according to the splicing. Appears or highlights the corresponding graphical options for the number of options. If the number of stitching is set to 4, the stitching position option appears as 2 grids of 2x2, and the user selects one of the four grids according to the relative position of the display device in the matrix of the video wall. If the number of stitching is set to 6, the stitching position option will appear with 6 grids of 2x3. If the number of stitching is set to 9, the stitching position option will appear with 9 grids of 3x3, but is not limited thereto.

Taking the number of display devices as four and the TV walls arranged in a 2x2 matrix as an example, the following is further explained. The four display devices in the video wall respectively input the same video signal. After the user opens the splicing function menu of the display device at the upper left position of the video wall, the splicing function switch is selected to be turned on, and the setting (click) the number of splicing options is "4". The option "4" can be highlighted or highlighted to indicate that it has been selected. The user then sets the stitching position option corresponding to "4" of the stitching number option. At this time, the 2x2 grid matrix can be highlighted or highlighted to be selected, and the remaining 2x3 and 3x3 grids can be dark, low or Do not show. The user selects the spliced image signal corresponding to the upper left position of the display device, which is the upper left grid of the 2x2 grid matrix, which is 1/4 of the image signal, and the splicing control module automatically or manually stores the user. Selecting the set value of the splicing function menu, and converting the set value to the image capturing control signal to the capturing module, the capturing module extracts the control signal according to the image capturing the first 1/1 of the image signal input by the input device 2 rows and the first 1/2 column, that is, the upper left 1/4 block of the complete image, and then captured/converted into a spliced image signal, and then transmitted to the zoom module, and the spliced image signal is enlarged by the zoom module The full screen size of the screen to the display unit of this unit.

Similarly, the other three display devices respectively capture the upper right, lower left, and lower right of the corresponding input image signals according to the above steps, and enlarge the captured spliced image signals on the screen of the display device, and the four displays are displayed. The device captures and enlarges the input image signals on the TV wall and combines them into a complete image frame, which realizes the self-splicing function of the four display devices.

In summary, the method for splicing a video wall formed by the display device of the present invention can realize the self-implementation of the display device without adding an image splicing processor by adding a splicing control module to the display device. The splicing function saves the cost of the image splicing processor when forming a video wall.

While the present invention has been described above in terms of the preferred embodiments thereof, it is not intended to limit the invention, and the present invention may be modified and modified without departing from the spirit and scope of the invention. The scope of protection is subject to the definition of the scope of the patent application.

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Claims (8)

A method for splicing a display device to form a video wall, comprising the following steps:
Arranging N display devices as a matrix;

Entering the splicing function menus of the display devices respectively;

The number of splicing of the display device to be spliced into a video wall is set to N;

Setting each of the display devices respectively corresponding to a splicing position in the matrix;

Inputting an image signal to the display devices;

The 1/N portions of the image signal corresponding to the stitching positions are respectively captured and displayed on a screen of the display devices.
The method for splicing a video wall of the display device according to the first aspect of the invention, wherein the 1/N portions of the image signal corresponding to the stitching positions are respectively captured and displayed on the screen of the display devices. The step further includes enlarging the image signal corresponding to the 1/N portion of the stitching positions to the full screen size of the screen. The method for splicing a video wall according to the display device of claim 1, wherein after the step of separately entering the splicing function menu of the display devices, the method further comprises: opening a splicing function. A display device is formed by splicing a video wall, which is composed of a matrix arranged by N display devices, and the display devices respectively include a screen and a main control chip, and the main control chip is provided with a capture module. And a zoom module, the method includes the following steps:
Inputting an image signal to the display devices;

a splicing function menu that enters one of the display devices;

Setting a number of stitching of the display device to be spliced into a video wall is N;

Selecting the display device corresponding to a splicing position in the matrix, wherein the splicing position corresponds to a 1/N portion of the image signal;

And storing the number of the splicing and one of the splicing positions in the display device;

Converting the set value to an image capture control signal and transmitting to the capture module;

The corresponding 1/N portion of the image signal is captured by the capture module and the control signal is captured as a stitched image signal;

Transmitting the spliced image signal to the zoom module;

Enlarging the spliced image signal to the full screen size of the screen through the zoom module;

The splicing function menus of the remaining display devices are respectively accessed, and the corresponding 1/N portions of the image signals are captured and enlarged to the full screen size of the screen;

The images displayed on the screen by the display devices are combined into a complete picture of the video wall.
The splicing control module is provided with a splicing control module, and the splicing function module includes a splicing function module, and the splicing function module includes a splicing control module, and the splicing function module includes A stitching function switch option, a stitching number option and a stitching position option. The method of assembling a display device to form a video wall according to the fifth aspect of the invention, wherein one end of the capture module is connected to the splicing control module and the other end is connected to the zoom module. The method of assembling a display device according to claim 5, wherein the splicing function switch option comprises an opening and closing option; the splicing number option corresponds to the splicing position option. The method of splicing a display device to form a video wall according to claim 5, wherein the step of storing the set value in the display device further comprises storing the set value in the splicing control module.