KR102640468B1 - Full output synchronized modular multi-screen pc without heterogeneity between displays in displaying images - Google Patents

Abstract

A seamless modular multi-screen PC with full output synchronized so that there is no sense of inconsistency between displays when displaying images is disclosed. It has a display unit for splitting multiple images and displaying them on a multi-screen, and a display unit that receives image data from image sources, respectively. It includes an image processing device for providing to a display unit, and the image processing device includes a GPU board, a mother board that synchronizes and displays image sources, and receives and processes image data from the image sources to the GPU board and the mother board. It includes a plurality of input slot cards and output slot cards for receiving image data provided from the GPU board and motherboard, converting it into an image signal, and then providing it to the display unit. Input slot cards and output slots Each of the cards is fixed to the outside of the case of the image processing device through a fastener so that it can be combined and separated from the outside of the image processing device. The seamless modular multi-screen PC of the present invention allows for free configuration according to various environments by providing various input/output slot cards (HDMI, DisplayPort, HDBaseT, VGA, etc.), eliminating the need to use a separate AV conversion device. Make sure there is no such thing.

Description

Seamless modular multi-screen PC with full output synchronized so that there is no discrepancy between displays when displaying images

The present invention relates to a multi-screen PC, and specifically, when receiving video data from a plurality of video sources and displaying the video on a split screen, that is, a multi-screen, through one display, full output is synchronized so that there is no heterogeneity between the displays. It is about a seamless modular multi-screen PC.

The Gen-Lock function refers to a function that synchronizes to prevent screen tearing by reducing delay when switching images, and combines images to realize multi-screen on the display by receiving multiple video sources. It is widely used in devices (image processing devices).

Examples of conventional image synthesis devices are disclosed in Republic of Korea Patent No. 10-1498674 (registered on February 26, 2015) and Republic of Korea Patent No. 10-1498667 (registered on February 26, 2015).

A problem that frequently occurs in these conventional video synthesis devices is that when the terminals of some video cables are disconnected from the input slot or output slot (or input/output slots collectively) as needed or by mistake, multi-screen display is not possible. This means that the screen of the display may be misaligned or severely distorted. That is, as shown in FIG. 1, in image synthesis devices, while displaying a multi-screen on the display 10, a user connects a transmission cable (N, where N is 16) from the corresponding slot of the image synthesis device 1, while a plurality of images (S1 to S16) are aligned as shown in FIG. 1, only the image (e.g., S5) corresponding to the separated portion is It must not be displayed on the display 10, and when the transmission cable is reinserted into the slot of the image synthesis device 1, the image S5 is moved to that position while maintaining the current alignment state. It should be displayed in. Here, the plurality of images (S1 to S16) may be independent images or one enlarged image. However, in conventional image synthesis devices, the transmission cable is connected to the image synthesis device. When separating or reinserting in (1), there is a problem in which the arrangement of the images is completely different or distorted images are displayed on the display 10 (hereinafter, these phenomena are referred to as 'screen misalignment' for convenience). In addition, within the image synthesis device 1, a graphics card (hereinafter abbreviated as 'slot card') is provided with an input slot or output slot to allow the combination of a transmission cable while performing the function of a graphics card for processing images. (must be provided at least in numbers corresponding to the number of split images). In the case of the conventional video synthesis device 1, these plural slot cards are located inside the case and a CPU, etc. is installed. Since the motherboard and the GPU board equipped with the GPU are connected in an integrated form or are not easy to separate, or at least do not have a structure that allows each of the slot cards to be separated one by one, maintenance work or regular management, that is, is not necessary. Accordingly, when it is necessary to replace some of the slot cards or to separate and inspect some of the slot cards due to failure, there are many problems in the work. Therefore, measures to solve these problems are urgently needed in the relevant technology field.

Republic of Korea Patent No. 10-1498674 (registered on February 26, 2015) Republic of Korea Patent No. 10-1498667 (registered on February 26, 2015)

The problem that the present invention aims to solve is that even when some of the plurality of transmission cables are separated or reconnected in the video synthesis device, the image corresponding to the slot is displayed as is at the corresponding position on the display displaying the multi-screen. The goal is to provide a modular multi-screen PC that can solve the problem of the display not displaying the entire image or distorting the entire image on the display, that is, a seamless modular multi-screen PC with full output synchronized so that there is no discrepancy between displays when displaying images.

Another problem that the present invention aims to solve is to solve the inconvenience of replacing some slot cards in an image synthesis device or removing and inspecting some slot cards due to failure. The aim is to provide a seamless modular multi-screen PC that includes an image synthesis device with a structure that allows the slot card to be attached and detached.

Another problem that the present invention aims to solve is to enable free configuration according to changes in the environment by providing various input/output slot cards (HDMI, DisplayPort, HDBaseT, VGA, etc.), eliminating the need to use a separate AV conversion device. The goal is to provide a seamless modular multi-screen PC that eliminates any problems.

A seamless modular multi-screen PC according to an aspect of the present invention for solving the above problem includes a display unit 120 for splitting a plurality of images and displaying them on a multi-screen, and receiving image data from a plurality of image sources. It includes an image processing device 110 for receiving each image and providing the image to the display unit, wherein the image processing device synchronizes a GPU board equipped with a graphics processing unit (GPU) and the plurality of image sources to the display unit. A motherboard for displaying video data from the plurality of video sources, processing the video data, and providing the video data to the GPU board and the motherboard - each of the input slot cards includes, Includes an input slot that allows insertion of one end of each input transmission cable to receive video data - and receives a plurality of video data provided from the GPU board and the motherboard to receive a video signal A plurality of output slot cards to be converted to and then provided to the display unit - each of the output slot cards includes an output slot that allows insertion of a set of output transmission cables to output a video signal. Included, each of the input slot cards and the output slot cards is fixed to the outside of the case of the image processing device through a fastener so as to be detachable from the outside of the image processing device.

According to one embodiment, the image processing device further includes a power supply for supplying power required for driving the image processing device, and the power supply is supplied from the outside of the case of the image processing device through a fastener. It is fixed.

According to one embodiment, the number of input slot cards is four, and each of them has four input slots, and the number of output slot cards is four, and each of them can have four output slots.

According to one embodiment, the number of input slot cards may be 8, and each may have 4 input slots, and the number of output slot cards may be 8, and each may have 4 output slots.

According to one embodiment, the motherboard may display a multi-screen on the display unit by operating the CPU and the modular multi-screen PC, and the input transmission cable may be disconnected from the corresponding input slot or the output cable may be disconnected from the input slot. When the transmission cable is separated from the corresponding output slot, an indicator holding part to maintain a constant voltage at all times, whether the input transmission cable is normally inserted into the input slot of each of the input slot cards, and the An input sensor for sensing whether the output transmission cable is normally inserted into the output slot of each output slot card, and an EDID (Extended display identification data) information maintenance unit - the EDID information maintenance unit includes resolution information, frame rate ( F/R), color depth, and color format are maintained - and includes a Gen-Lock unit for synchronizing video signals output through the output slot cards.

The present invention provides a seamless modular multi-screen PC with full output synchronized so that there is no heterogeneity between displays when displaying images, so that even when some of the plurality of transmission cables are separated from the video synthesis device or reconnected after separation, the corresponding slot This has the effect of improving the problem of the image not being displayed at the corresponding position on the multi-screen display, or the problem of the entire image on the display being distorted. In addition, the present invention provides a modular multi-screen PC including an image synthesis device with an improved structure so that each slot card can be attached and detached from the outside, thereby replacing some slot cards in the image synthesis device or some slots due to failure. This can eliminate the inconvenience of having to separate and inspect the card.

In addition, the present invention provides various input/output slot cards (HDMI, DisplayPort, HDBaseT, VGA, etc.) to enable free configuration according to changes in the environment, thereby eliminating the need to use a separate AV conversion device. .

It should be noted that the effect of the invention is not limited to this, and is further described in the specific details for carrying out the invention section below.

1 is a diagram for explaining the general configuration of an image synthesis device,
Figure 2 is a diagram for explaining a seamless modular multi-screen PC according to an embodiment of the present invention;
FIGS. 3A and 3B are diagrams for explaining the external features of the image processing device 110 in the seamless modular multi-screen PC of FIG. 2;
FIGS. 4A, 4B, and 4C are diagrams for explaining the internal structure of the image processing device 110 and the characteristics of important components, including the internal slot card 130, in the seamless modular multi-screen PC of FIG. 2;
FIG. 5 is a block diagram of the motherboard 160 in the image processing device 110 of the seamless modular multi-screen PC of FIG. 2;
FIG. 6 schematically shows the operation timing diagram of the indicator holding unit, input sensor, and EDID information holding unit in the motherboard 160 of FIG. 5;
Figure 7 shows another example of an image processing device in a seamless modular multi-screen PC according to an embodiment of the present invention.

As mentioned above, the present invention eliminates the need to use a separate AV conversion device by providing various input/output slot cards (HDMI, DisplayPort, HDBaseT, VGA, etc.) to enable free configuration according to various environments. .

Hereinafter, preferred embodiments of the present invention will be described with reference to the attached drawings. It should be noted that the attached drawings and examples are simplified and illustrated with the intention of helping those skilled in the art to understand the present invention.

FIG. 2 is a diagram for explaining a seamless modular multi-screen PC according to an embodiment of the present invention, and FIGS. 3A and 3B show external features of the image processing device 110 in the seamless modular multi-screen PC of FIG. 2. It is an explanatory drawing, and FIGS. 4A, 4B, and 4C illustrate the internal structure of the image processing device 110 and the characteristics of important components, including the internal slot card 130, in the seamless modular multi-screen PC of FIG. 2. This is a drawing for

Referring to FIGS. 2, 3A, 3B, 4A, 4B, and 4C, the seamless modular multi-screen PC according to an embodiment of the present invention includes an image processing device 110 and a display unit 120. , including slot cards 130.

The display unit 120 is a component that can split a plurality of images and display them on a multi-screen.

The image processing device 110 is a component that receives image data from each of the image sources 11 and provides the image data to the display unit 120 . The video sources 11 are shown as one block in FIG. 2, but refer to any devices that can provide video data, such as multimedia devices, cameras, CCTV, etc. located in different physical locations. For convenience, signals provided from image sources 11, that is, signals input to the image processing device 110, are referred to as image data, and signals processed by the image processing device 110 and output to the display unit 120 are referred to as image data. It is referred to as a video signal. Additionally, input and output are defined based on the image processing device 110.

The image processing device 110 includes a GPU board 170 equipped with a graphics processing unit (GPU), a motherboard ( 160), and a plurality of input slot cards (131 to 134) and a plurality of output slot cards (135 to 138).

The plurality of input slot cards 131 to 134 are components for receiving image data from a plurality of image sources 11, processing it, and then providing it to the GPU board 170 and the mother board 160. Each of the input slot cards 131 to 134 includes input slots 131a to 134a that allow insertion of one end of each input transmission cable to receive video data from the video sources 11. do. Each input slot card has four input slots. For convenience, the four input slots (e.g., 131a) provided in one input slot card (e.g., 131) are indicated by only one reference number.

The plurality of output slot cards 135 to 138 receive video data processed by the GPU and CPU, that is, a plurality of video data provided from the GPU board 170 and the mother board 160, and convert them into video signals. It is a component for providing to the display unit 120 after processing. Each of the output slot cards 135 to 138 includes output slots 135a to 138a that allow the insertion of one end of an output transmission cable to output an image signal to the display unit 120. As in the case of the input slot card, each output slot card is provided with four output slots, but for convenience, only one output slot (e.g., 135a) is indicated by a reference number.

Each of the input slot cards 131 to 134 and the output slot cards 135 to 138 is formed in a modular form so that these slot cards can be easily separated and worked outside the image processing device 110, thereby facilitating maintenance. It can provide convenience in regular maintenance work. In the conventional case, there was a problem in that it was difficult to separate the input slot card or output slot card without causing physical damage because they were located inside the case or completely combined with the motherboard. Therefore, as shown, the image processing device 110 is configured to be fixed on the outside of the case through a fastener, so that the input slot card or output slot card can be removed by loosening the fastener from the outside of the case when necessary. do. The fastener may be a hand screw so that it can be easily removed without relying on tools, but is not limited to this example. In the drawings, fasteners for separating or combining the input slot card are indicated with reference numerals 131b to 134b, and fasteners for separating or combining the output slot card are indicated with reference numerals 135b to 138b. In addition, each slot card is equipped with two fasteners at the top and bottom to ensure stable coupling.

Additionally, the image processing device 110 of the present invention further includes a power supply 140 for supplying power required to drive the image processing device. In the case of the power supply 140, it is fixed through a fastener 141 on the outside of the case of the image processing device 110, and can be easily separated by loosening the fastener 141 when inspection of the power supply 140 is necessary. Consists of.

2 to 4C illustrate that the number of input slot cards is 4 and the number of output slot cards is 4. In other words, each of the four input slot cards has four input slots, allowing input from a total of 16 video sources. Correspondingly, each of the four output slot cards also has four output slots. A total of 16 video signals are configured to implement 16 split screens through the display unit 120.

However, as illustrated in FIG. 7, there are 8 input slot cards (each input slot card has 4 input slots) and 8 output slot cards (each output slot card has 4 output slots). formed), it is possible to receive input from a total of 32 image sources and implement 32 split screens through the display unit 120.

Referring again to FIG. 3A, the cases 111a, 111b, 111c, 111d, and 111e of the image processing device 110 are formed in a rectangular parallelepiped shape, and include a front portion 111c, a rear portion 111b, and a top portion 111a. , side portions 111d and 111e, and a lower surface portion (reference notation not shown). Heat dissipation gratings 112a and 112b are formed on the top portion 111a and the side portions 111d and 111e to dissipate heat. In FIG. 3A, only the left side portion 111e is shown in detail, but the right side portion 111d is also configured to have the same shape. The side portions 111d and 111e are further provided with handle portions 113a and 113b to facilitate holding the image processing device 110 when moving it.

Referring again to FIG. 3B, the image processing device 110 is further provided with an external port connection section 150 so that external ports such as a LAN port can be connected.

Referring to FIGS. 4A to 4C together, the input slot cards and output slot cards (collectively referred to as modular slot cards 130) configured in a modular form in the image processing device 110 are used in the image processing device 110. ) is configured so that it can be conveniently separated from the case to the outside. Figure 4b shows the state in which these modular slot cards 130 are simultaneously separated from the slot card opening 111c1 of the case. Looking at FIG. 4C, which is an enlarged view of the modular slot cards 130 in FIG. 4B, the modular slot cards 130 include input slot cards 131 to 134 and output slot cards 135 to 138. ) is provided with a slot card fixing part (139) to stably maintain the card. Figure 4c illustrates a state in which one input slot card 131 of the input slot cards 131 to 134 is removed by removing the fastener 131b.

Next, FIG. 5 is a block diagram showing the configuration of the motherboard 160 in the image processing device 110 of the seamless modular multi-screen PC of FIG. 2, and FIG. 6 shows an indicator holding portion in the motherboard 160 of FIG. 5, It schematically shows the operation timing diagram of the input sensor, EDID information holding unit, etc.

The motherboard 160 includes a central processing unit (CPU), an indicator holding unit, an input sensor, an extended display identification data (EDID) information holding unit, and a genlock unit 162. The CPU, indicator holding unit, input sensor, and EDID are indicated by reference numeral 161 as screen misalignment prevention units.

The CPU is a component that performs the function of processing and controlling information from the input sensor, indicator holding unit, and EDID information holding unit.

When the modular multi-screen PC of the present invention starts operating and displays a multi-screen on the display unit 120, the indicator holding unit is configured to separate the input transmission cable from the corresponding input slot or the output transmission cable from the corresponding output slot. When a separation event occurs, a constant voltage (e.g., 5V) is maintained at all times (in the timing diagram of FIG. 6, after tON (the starting point of operation of the modular multi-screen PC), the high state is always maintained).

The input sensor senses whether the input transmission cable is normally inserted into the input slot of each of the input slot cards, and whether the output transmission cable is properly inserted into the output slot of each output slot card. If the input transmission cable and the output transmission cable are properly inserted, a multi-screen, or split screen, is displayed normally through the display unit 120. If they are not inserted properly, the corresponding screen is not displayed. am. In the timing diagram of FIG. 6, tOFF indicates the point at which the input transmission cable or output transmission cable is removed from the corresponding slot, and the input sensor maintains a high level after the tON point and remains at a low level after the tOFF point. In this state, when the user normally inserts the corresponding transmission cable into the slot (tH indicates the point of normal insertion), the input sensor again maintains the high level.

The EDID information maintenance unit continuously maintains information about resolution information, frame rate (F/R), color depth, and color format.

As mentioned earlier, in the case of conventional image processing devices, when reinserting like this, a screen misalignment problem occurs in which the arrangement of images is completely different or distorted images are displayed through the display unit 120, but the present invention In the case of this way, the information just before the transmission cable is removed from the slot is maintained by the indicator holding unit and the EDID information holding unit, so when the transmission cable is removed from the slot and re-inserted, the conventional It is possible to solve screen misalignment problems that occur in image processing devices.

The Gen-Lock unit is a component that synchronizes video signals output through output slot cards and displays them through the display unit 120, and is a component that prevents screen interruption due to delay when switching images.

In the above, the seamless modular multi-screen PC of the present invention has been described as an example, but it should be noted that the scope of the present invention is not limited by this exemplary description but is defined by the claims below.

110: Image processing (compositing) device
120: display unit
130: Input slot card and output slot card
140: Power supply

Claims (5)

As a seamless modular multi-screen PC,
A display unit 120 for splitting a plurality of images and displaying them on a multi-screen; and
An image processing device 110 for receiving image data from a plurality of image sources and providing the image data to the display unit,
The image processing device includes a GPU board equipped with a graphics processing unit (GPU), a mother board for synchronizing the plurality of image sources and displaying them on the display unit, and receiving image data from the plurality of image sources. After processing, a plurality of input slot cards are provided to the GPU board and the mother board - each of the input slot cards requires insertion of one end of each input transmission cable to receive video data. Includes an input slot that allows - And, a plurality of output slot cards for receiving a plurality of image data provided from the GPU board and the mother board, converting them into image signals and providing them to the display unit - The output Each of the slot cards includes an output slot that allows insertion of a respective end of an output transmission cable to output a video signal, and each of the input slot cards and the output slot cards includes:
It is fixed through a fastener on the outside of the case of the image processing device so that it can be coupled and separated from the outside of the image processing device,
The motherboard is,
In a state in which a multi-screen is displayed on the display unit by the operation of a CPU (Central processing unit) or the modular multi-screen PC, the input transmission cable is disconnected from the corresponding input slot, or the output transmission cable is disconnected from the corresponding output slot. An indicator holding unit for maintaining a constant voltage when separated, whether the input transmission cable is properly inserted into the input slot of each of the input slot cards, and an output slot of each of the output slot cards. An input sensor for sensing whether the output transmission cable is normally inserted, an EDID (Extended display identification data) information maintenance unit - the EDID information maintenance unit stores resolution information, frame rate (F/R), and color depth ( A seamless modular multi-screen PC, characterized by maintaining information on color depth, color format, and a Gen-Lock unit for synchronizing video signals output through the output slot cards.
The method according to claim 1, wherein the image processing device:
A seamless modular multi-screen further comprising a power supply for supplying power required to drive the image processing device, wherein the power supply is fixed to the outside of the case of the image processing device through a fastener. PC.
The seamless module according to claim 1, wherein the number of input slot cards is 4, each of which is formed with 4 input slots, and the number of output slot cards is 4, and each of the output slot cards is formed of 4 output slots. Type multi-screen PC.
The seamless module according to claim 1, wherein the number of input slot cards is 8, each of which is formed with 4 input slots, and the number of output slot cards is 8, each of which is formed with 4 output slots. Type multi-screen PC.
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