A kind of 4K LCD TV splicing apparatus and liquid crystal-spliced system
Technical field
This utility model belongs to large screen splicing display field, particularly relates to a kind of 4K LCD TV splicing apparatus and liquid crystal is spelled
Welding system.
Background technology
Along with the development of society, video image is more and more applied to our life, because image more can be intuitively
Express thinking and transmission information.Video image gradually penetrates into the every nook and cranny of our life, and screen size is increasing,
The content presented is more and more rich and varied.Currently, maximum telescreen is the television set of 200 inches in the world, and LED large-size screen monitors are permissible
Accomplish bigger size.LCD large screen splicing is mainly used in KTV, Internet bar, cinema, meeting room, the display and demonstration Room, monitoring tune
The public arenas such as degree center, breach the size limitation of single LCD display, it is possible in showing product with bigger visual range
Appearance, advertisement, video clip, fine definition picture, improve the popularity of environment class and enterprise.Traditional splicing be by
The video flowing of one 1080P resolution is amplified to a bigger painting canvas and shows, the video image after such as amplifying is at 3 × 3=9
Show on the combination that individual screen is combined into.
But, the image definition after amplifying reduces, and burrs on edges highlights, and has certain distortion, meanwhile, practical existing
Having the splicing apparatus in splicing system to be typically correspondingly arranged with liquid crystal display screen, be arranged at after liquid crystal display screen, front is invisible, simultaneously
In the splicing system of multiple liquid crystal display screens, each liquid crystal display screen to be separately provided a splicing apparatus and matrix switcher or distribution
Device is attached, as it is shown in figure 1, the splicing system in figure is 9 LCDs splicing engineerings of a 3X3, plays main frame
The TV digital signal of (computer or disc player) 40 exports 9 splicings after matrix switcher or allotter 70 carry out cutting
Device 100, the part signal cut is exported 9 corresponding display screens 50 and shows, wherein by 9 splicing apparatus 100 again
The video signal that splicing apparatus is come by a plurality of DVI line receiving matrix switch or allotter, then comes according to splicing size
Amplifying video signal, if matrix is distant from display screen, then it is farther that DVI line draws, line is the most more long, and system cost is more
Height, system is the most unstable.It addition, matrix device cost is high, equipment runs the control needing upper computer software, and splicing apparatus also needs
Want the control of upper computer software, so, in a system, need to use two upper computer softwares and control respectively, control difficulty
Height, stability is difficult to ensure that, if matrix and splicing apparatus come from different producers, can there is the incompatible problem of equipment same
Time, the liquid crystal display screen resolution that existing splicing apparatus is corresponding is 1080P, and after splicing is amplified, definition is low.
The most existing splicing apparatus makes equipment number in splicing system many, and line is many, and cost is high, controls complexity, equipment
Stability is low, and the definition that display image is amplified in splicing is the highest.
Utility model content
This utility model embodiment provides a kind of 4K LCD TV splicing apparatus, it is intended to solves existing splicing apparatus and makes
In splicing system, equipment number is many, and line is many, and cost is high, controls complexity, and stabilization of equipment performance is low, and the clear of display image is amplified in splicing
The problem that clear degree is the highest.
This utility model embodiment is achieved in that a kind of 4K LCD TV splicing apparatus,
Including field programmable gate array chip, with the electrical connection of described field programmable gate array chip input
The HDMI/DVI of HDMI video decoding chip and outfan multiple with described field programmable gate array chip electrical connection compiles
Code chip;
The HDMI of described HDMI video decoding chip connects plays main frame, by the digital signal solution of described broadcasting main frame
Code becomes transmission extremely described field programmable gate array chip after 4K high-definition signal, and described HDMI/DVI coding chip is by high-definition signal
Shown to display screen by the output of DVI output interface after being converted into DVI signal;
Described field programmable gate array chip is also associated with storage chip.
Further, described field programmable gate array chip model is XC6SLX45, described HDMI video decoding chip
Model is ADV7619, and described HDMI/DVI coding chip model is CH7301.
Further, described field programmable gate array chip connects 9 HDMI/DVI coding chips.
This utility model embodiment also provides for a kind of liquid crystal-spliced system, and wherein, described liquid crystal-spliced system comprises above-mentioned
4K LCD TV splicing apparatus, play main frame and multiple display screen, described 4K LCD TV splicing apparatus input connects
Described broadcasting main frame, outfan connects the plurality of display screen by multiple DVI output interfaces.
Further, described 4K LCD TV splicing apparatus is provided with 9 DVI output interfaces 9 display screens of connection.
The 4K LCD TV splicing apparatus of this utility model embodiment, by arrange field programmable gate array chip with
HDMI video decoding chip receives to be play host signal and is converted into HDMI high-definition signal, and encodes core by multiple HDMI/DVI
HDMI signal is decoded into multiple different DVI signal and exports multiple DVI interface by sheet so that equipment number in splicing system
Few, line tails off, and cost reduces, and controls simple, and stabilization of equipment performance is high, and the high-definition signal after conversion is after splicing is amplified simultaneously
Display image is the highest.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the existing splicing apparatus composition splicing system that this utility model embodiment provides;
Fig. 2 is the schematic diagram of the 4K LCD TV splicing apparatus module composition that this utility model embodiment provides;
Fig. 3 is the schematic diagram of the 4K LCD TV splicing apparatus composition splicing system that this utility model embodiment provides.
Detailed description of the invention
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing and enforcement
Example, is further elaborated to this utility model.Should be appreciated that specific embodiment described herein is only in order to explain
This utility model, is not used to limit this utility model.
It should be noted that when element is referred to as " being fixed on " or " being arranged at " another element, and it can be directly separately
On one element or may be simultaneously present centering elements.When an element is known as " being connected to " another element, and it can
To be directly to another element or to may be simultaneously present centering elements.
Also, it should be noted the orientation term such as left and right, upper and lower in this utility model embodiment, it is only the most relative
Concept or with the normal operating condition of product as reference, and should not be regarded as restrictive.
With reference to shown in Fig. 2, this utility model embodiment provides, a kind of 4K LCD TV splicing apparatus 101,
Including field programmable gate array chip 10, it is electrically connected with described field programmable gate array chip 10 input
HDMI video decoding chip 20 and with the electrical connection of more than 10 outfan of described field programmable gate array chip
HDMI/DVI coding chip 30;
The HDMI of described HDMI video decoding chip 20 connects plays main frame 40, by the numeral letter of described broadcasting main frame
After number being decoded into 4K high-definition signal, transmission is to described field programmable gate array chip 10, and described HDMI/DVI coding chip 30 will
High-definition signal is shown to display screen 50 by the output of DVI output interface after being converted into DVI signal;
Described field programmable gate array chip is also associated with storage chip 60;
So, the video signal playing main frame is converted into 4k high-definition signal by splicing apparatus, shows after being amplified output
Image definition is high, does not haves distortion or burr phenomena, meanwhile, when being applied to splicing system, it is only necessary to this practicality
The splicing apparatus of new embodiment, it is not necessary to as each display screen of prior art will be separately configured a traditional splicing
Device, is greatly saved number of devices in whole system, decreases the connection of circuit between devices in system, reduces into
This, PC control software reduces, and control system becomes simple so that the stability of system is also improved.
In this utility model embodiment, described field programmable gate array chip model is XC6SLX45, described HDMI
Video decoding chip model is ADV7619, and described HDMI/DVI coding chip model is CH7301.
In this utility model embodiment, described field programmable gate array chip connects has 9 HDMI/DVI to encode core
Sheet, it will be understood that in other embodiments of the present utility model, HDMI/DVI coding chip quantity can be carried out according to actual needs
Adaptive design.
As it is shown on figure 3, this utility model embodiment also provides for a kind of liquid crystal-spliced system, wherein, described liquid crystal-spliced system
System comprises 4K LCD TV splicing apparatus 101 described above, and described 4K LCD TV splicing apparatus input connects described broadcasting
Main frame 40, outfan connects multiple display screens 50 by multiple DVI output interfaces.
As an embodiment of the present utility model, described 4K LCD TV splicing apparatus is provided with 9 DVI output interfaces
Connecting 9 display screens, it will be understood that in other embodiments of the present utility model, described 4K LCD TV splicing apparatus is with aobvious
Display screen may be arranged as multiple according to actual displayed demand such as 12 or 15.
In this utility model embodiment, unlike existing splicing system, come from video source such as playing main frame
Signal become 4K HDMI signal from 1080P, the resolution of 4K HDMI signal is 3840x2160, the present embodiment 3 ×
In 3 liquid crystal-spliced engineerings, 4K LCD TV splicing apparatus 9 DVI high definition ports of output, it is coupled with the input interface of display screen
On, the true resolution of 3 × 3 liquid crystal-spliced engineerings has brought up to 3840 × 2160 from original 1080P, and definition improves 4
Times, image quality be improved significantly.A liquid crystal-spliced device need not be hung on the most each display screen the most respectively, save equipment,
Reduce cost, it is not required that host computer is controlled, reduce the control difficulty of system.For the splicing engineering of 2 × 2, defeated
3840 × 2160 resolution signal sources entered have only to split four parts, need not scale, can direct point-to-point display at liquid crystal
On the combination of display screen, splice simple and quick.
The 4K LCD TV splicing apparatus of this utility model embodiment offer and liquid crystal-spliced system, can by arranging scene
Programming gate array chip receives with HDMI video decoding chip and plays host signal and be converted into HDMI high-definition signal, and by many
HDMI signal is decoded into multiple different DVI signal and exports multiple DVI interface by individual HDMI/DVI coding chip so that splicing
Devices in system number is few, and line tails off, and cost reduces, and controls simple, and stabilization of equipment performance is high, simultaneously the high-definition signal after conversion
Display image after splicing is amplified is the highest.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all at this
Any amendment, equivalent and the improvement etc. made within the spirit of utility model and principle, should be included in this utility model
Protection domain within.