CN209881933U - Liquid crystal splicing device - Google Patents
Liquid crystal splicing device Download PDFInfo
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- CN209881933U CN209881933U CN201922004624.1U CN201922004624U CN209881933U CN 209881933 U CN209881933 U CN 209881933U CN 201922004624 U CN201922004624 U CN 201922004624U CN 209881933 U CN209881933 U CN 209881933U
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Abstract
The utility model provides a liquid crystal splicing apparatus includes the PC, the concatenation screen, connect the control box of PC and concatenation screen, the concatenation screen includes four liquid crystal concatenation units, the control box includes the circuit board, install the main chip on the circuit board, the management chip, 8K video signal in the PC gets into the main chip, the main chip gets into liquid crystal concatenation unit by HDMI output interface after with 8K video signal cutting processing, manage one end to the PC of chip, the other end is connected to the main chip, the PC is through managing the distribution of chip control main chip to 8K video signal's cutting and cutting back video signal in liquid crystal concatenation unit. The utility model discloses liquid crystal splicing apparatus simple structure, PC accessible management chip switches over wantonly to the demonstration content in the liquid crystal concatenation unit, adopts the liquid crystal display panel of the super narrow frame of 4K to be favorable to reducing the quantity of liquid crystal concatenation simultaneously, makes its stable performance, occupation space little.
Description
Technical Field
The utility model relates to a display device field specifically is a liquid crystal splicing apparatus.
Background
Liquid crystal splicing screens are applied more and more widely in various industries in recent years, due to the characteristics that the ultra-narrow frames and the splicing sizes are not limited, the liquid crystal splicing screens play more and more important roles in the fields of video conferences, security monitoring, traffic guidance, big data visualization display and the like, and the application of liquid crystal splicing walls spliced and combined in various sizes is endless. The physical resolution of the conventional liquid crystal splicing units on the market at present is 2K, and the size of more than 65 inches can reach 4K. With the advent of the 5G era, 8K image video signals can be transmitted and displayed more and more widely. At present, if 8K images in the market want to obtain a point-to-point display effect on a liquid crystal splicing wall, at least 16 2K splicing screens are needed to be realized in a 4-row and 4-column combination mode, and a professional 16-output image processor is needed, so that the scheme has the advantages of large occupied area, high manufacturing cost and unstable performance.
Therefore, the problem to be solved in the field is to provide a liquid crystal splicing device with stable performance and low cost.
SUMMERY OF THE UTILITY MODEL
To the problem, the utility model discloses liquid crystal splicing apparatus simple structure, PC accessible management chip switch wantonly the display content in to the liquid crystal concatenation unit, and the liquid crystal display panel who adopts the super narrow frame of 4K simultaneously is favorable to reducing the quantity of liquid crystal concatenation, makes its stable performance, occupation space little.
In order to solve the above problems, the liquid crystal splicing device of the present invention comprises a PC, a splicing screen, and a control box for connecting the PC and the splicing screen, wherein the splicing screen comprises four liquid crystal splicing units, each liquid crystal splicing unit comprises a liquid crystal driver having an HDMI interface connected with the HDMI interface, and a liquid crystal panel connected with the liquid crystal driver, the control box comprises a circuit board, a main chip and a management chip are mounted on the circuit board, an HDMI input interface and a DP input interface are provided between the main chip and the PC, 8K video signals in the PC enter the main chip from the HDMI input interface or the DP input interface, an HDMI output interface is provided between the main chip and the liquid crystal splicing unit, the main chip cuts the 8K video signals and then enters the liquid crystal splicing unit from the HDMI output interface, the management chip is connected with an RS232 input interface and an RS232 output interface, and one end of the management chip is connected to the PC through the RS232 input interface, the other end is connected to the main chip through an RS232 output interface, and the PC controls the main chip to cut the 8K video signals and the distribution of the cut video signals in the liquid crystal splicing unit through the management chip.
Furthermore, the circuit board further comprises an A/D conversion module and a power interface for connecting the A/D conversion module and mains supply, and the mains supply is converted into an applicable DC power supply through the A/D conversion module.
Furthermore, one end of the A/D conversion module is divided into three paths, and the three paths are respectively connected to the main chip, the liquid crystal driver and the liquid crystal panel, the other end of the A/D conversion module is connected to commercial power through a power interface, a 220V AC power supply is input into the A/D conversion module through the power interface, the A/D conversion module converts the AC power supply into two paths of 5V DC power supplies and one path of 12V DC power supply, the two paths of 5V DC power supplies respectively supply power for the main chip and the liquid crystal driver, and the one path of 12V DC power supply supplies power.
Furthermore, the utility model discloses liquid crystal splicing apparatus simple structure, PC accessible management chip switch over wantonly to the demonstration content in the liquid crystal concatenation unit, adopt the liquid crystal display panel of the super narrow frame of 4K to be favorable to reducing the quantity of liquid crystal concatenation simultaneously, make its stable performance, occupation space little.
Drawings
Fig. 1 is a schematic diagram of the structure of the liquid crystal splicing apparatus of the present invention.
Fig. 2 is a schematic structural diagram of a control box in the liquid crystal splicing apparatus of the present invention.
Detailed Description
The directional terms of the present invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only directions in the drawings, and are only used for explaining and explaining the present invention, but not for limiting the scope of the present invention.
The utility model discloses liquid crystal splicing apparatus's component structure is given with fig. 1 and fig. 2, and it includes PC 1, concatenation screen 2, connects the control box 3 of PC and concatenation screen, concatenation screen 2 includes that four are listed as the liquid crystal splicing unit of seamless concatenation range with two lines, and every liquid crystal splicing unit all includes the liquid crystal drive of HDMI interface and HDMI interface connection, the liquid crystal display panel who is connected with the liquid crystal drive, the liquid crystal display panel is the liquid crystal display panel of the super narrow frame of 4K. Control box 3 includes shell and circuit board, the circuit board includes main chip and management chip, wherein is connected with HDMI input interface and DP input interface on the main chip, and the main chip passes through HDMI input interface and DP input interface and is connected with the PC, and wherein the one end of management chip is connected with RS232 input interface, and the other end is connected with RS232 output interface, the management chip passes through RS232 input interface and is connected to the PC, through RS232 output interface connection to main chip, still be connected with four HDMI output interfaces on the main chip, the main chip is connected to the HDMI interface on four liquid crystal concatenation units through four HDMI output interfaces respectively. The circuit board further comprises an A/D conversion module and a power interface, one end of the A/D conversion module is divided into three paths which are respectively connected to the main chip, the liquid crystal drive and the liquid crystal panel, the other end of the A/D conversion module is connected to commercial power through the power interface, a 220V AC power is input into the A/D conversion module through the power interface, the A/D conversion module converts the A/D conversion module into two paths of 5V DC power and one path of 12V DC power, the two paths of 5V DC power respectively supply power for the main chip and the liquid crystal drive, and the one path of 12V DC power supplies power for the.
The operating principle of the control box 3 is as follows: 8K video signals in the PC enter a main chip through an HDMI input interface or a DP input interface, the main chip is divided into 4K video signals, the four 4K video signals obtained after division are transmitted to four liquid crystal splicing units through four HDMI output interfaces, a liquid crystal driver detects that the 4K video signals enter the liquid crystal splicing units and then drives a liquid crystal panel to display, and the PC operates a management chip to control the cutting of the 8K video signals and the distribution of the 4K video signals in the liquid crystal splicing units. The utility model discloses liquid crystal splicing apparatus simple structure, PC accessible management chip switches over wantonly to the demonstration content in the liquid crystal concatenation unit, adopts the liquid crystal display panel of the super narrow frame of 4K to be favorable to reducing the quantity of liquid crystal concatenation simultaneously, makes its stable performance, occupation space little.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (3)
1. The liquid crystal splicing device is characterized by comprising a PC (1), a splicing screen (2) and a control box (3) for connecting the PC and the splicing screen, wherein the splicing screen (2) comprises four liquid crystal splicing units, each liquid crystal splicing unit comprises a liquid crystal drive with an HDMI interface connected with the HDMI interface and a liquid crystal panel connected with the liquid crystal drive, the control box (3) comprises a circuit board, a main chip and a management chip are mounted on the circuit board, an HDMI input interface and a DP input interface are arranged between the main chip and the PC, 8K video signals in the PC enter the main chip from the HDMI input interface or the DP input interface, an HDMI output interface is arranged between the main chip and the liquid crystal splicing unit, the main chip cuts the 8K video signals and then enters the splicing liquid crystal unit from the HDMI output interface, and the management chip is connected with an RS232 input interface and an RS232 output interface, one end of the management chip is connected to the PC through the RS232 input interface, the other end of the management chip is connected to the main chip through the RS232 output interface, and the PC controls the main chip to cut the 8K video signals and the distribution of the cut video signals in the liquid crystal splicing unit through the management chip.
2. The liquid crystal splicing apparatus of claim 1, wherein the circuit board further comprises an a/D conversion module and a power interface for connecting the a/D conversion module and the commercial power, and the commercial power is converted into an applicable DC power by the a/D conversion module.
3. The liquid crystal splicing device of claim 2, wherein one end of the a/D conversion module is divided into three parts, and the three parts are respectively connected to the main chip, the liquid crystal driver and the liquid crystal panel, the other end of the a/D conversion module is connected to the mains supply through a power interface, a 220V AC power is input to the a/D conversion module through the power interface, the a/D conversion module converts the three parts into two 5V DC power supplies and one 12V DC power supply, the two 5V DC power supplies respectively supply power to the main chip and the liquid crystal driver, and the one 12V DC power supply supplies power to the liquid crystal panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004624.1U CN209881933U (en) | 2019-11-20 | 2019-11-20 | Liquid crystal splicing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922004624.1U CN209881933U (en) | 2019-11-20 | 2019-11-20 | Liquid crystal splicing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209881933U true CN209881933U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922004624.1U Active CN209881933U (en) | 2019-11-20 | 2019-11-20 | Liquid crystal splicing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209881933U (en) |
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2019
- 2019-11-20 CN CN201922004624.1U patent/CN209881933U/en active Active
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