liquid crystal screen splicing


  According to different needs, LCD splicing can achieve the following functions: single screen splitting, the single-screen display alone, any combination of display, full-screen LCD splicing, double splicing LCD splicing screen, vertical screen display, optional compensation or masking of the image frame, support for digital signal roaming, zooming and stretching, cross-screen display, setting and running of various display profiles, real-time processing of full HD signal.


  The LCD splicing can be used as a monitor alone, but also can be spliced into a large screen. According to different requirements, it can achieve the following functions: single screen splitting, the single-screen display alone, any combination of display, full-screen LCD splicing, double splicing LCD splicing, vertical screen display, optional compensation or masking of the image frame, support for digital signal roaming, scaling and stretching, cross-screen display, setting and operation of various display profiles, real-time processing of full HD signals. Real-time processing. The LCD splicing is a complete finished product, ready to use, as simple as building blocks, single or multiple LCD splicing is very simple to use and install. The LCD splicing is only 6.7mm wide around the edge, with a tempered glass protective layer, built-in intelligent temperature control alarm circuit, and the unique "fast dissipation" cooling system. In addition, the LCD splicing technology enables analog signal and digital signal to access at the same time. LCD splicing series products use the unique and the world's most advanced digital processing technology so that users can truly experience the full HD large screen effect.


Technical principles of liquid crystal screen splicing


Resolution


  LCD splicing screen resolution is an important indicator of the display image format. Usually, we refer to the resolution refers to the physical resolution of the LCD screen, that is, the screen shows the number of points, is the horizontal and vertical pixel value, this value determines the clarity of the LCD screen.


  By 2013, the mainstream resolution of LCD splicing screen products is 1366 × 768 and 1920 × 1080 two kinds, in line with what is usually said 16:9 widescreen ratio, 1366 × 768 is to achieve the minimum resolution limit of national HDTV standards. The future of high-definition television signals, there are three main formats, respectively, 720p, 1080i, and 1080p, the current popular Blu-ray BD and HD DVD also use these three formats.


  Some businesses like to do above the concept of "resolution", some of the physical resolutions is only 1366 × 768 small size screen LCD screen flaunted as the highest supported resolution of 1920 × 1080, where there is actually a trap. Consumers are misguided in this "physical" and "highest support" two words above, the LCD screen can actually show how wide the screen, how high the pixels, lies entirely in its physical resolution only. A flaunting the highest support for 1920 × 1080 resolution TV in fact only shows that the product is to support the 1920 × 1080 signal input format, in addition to the panel characteristics, but also and TV drive decoding technology, but in fact, if the physical resolution of the panel is only 1366 × 768, then the panel in the display of 1920 × 1080 signal screen. This is not a one-to-one correspondence of the point-to-point display, but through the transformation of the image of the 1920 × 1080 signal into a 1366 × 768 format in line with the panel output is presented in front of the audience, and this conversion process will be accompanied by the compression and loss of screen effects, the user sees is not the quality of the original 1920 × 1080 screen.


  In addition, it should be noted that the resolution and screen aspect ratio is actually not equal. In general, the horizontal and vertical dot pitch of the screen pixels is the same, that is to say, the pixels are square, so the resolution parameter ratio can be seen as the screen aspect ratio, for example, the resolution of a 1366×768 panel screen ratio is 16:9. For example, there is no contradiction between a product with a resolution of 1024×1024 and a product with a screen ratio of 16:9, 1024×1024 does not mean that the screen of the product is square.


  Distributed control technology


  The distributed signal control technology is the patented control of IWS splicing processors


  One of the technology, splicer internal use of each independent module, parallel processing, signal input into the splicer before the need to complete the scheduling and control of the signal through proprietary technology, to achieve the balance between the various channels of signal transmission and hardware bandwidth issues.


  For signals entering the non-public area, each window signal corresponds to an independent processing module and controls the display content of the corresponding display unit; the external matrix completes the signal distribution and scheduling switching; for unimportant signals, the input CBD area. During window operation, according to different window display modes, the matrix completes the micro allocation of the corresponding signal. In some special cases, if more display bandwidth is needed, part of the display function of the bottom map can be released to increase bandwidth requirements.


 Principle action


  The LCD splicing is a specialized terminal display device designed for engineering applications. It is based on FPGA array and parallel high-speed graphics processing technology, realizing unified processing of multiple high-speed video signals, replacing card-type splicing controller fundamentally, and solving the problem of a limited number of VGA signal input. It will be the most excellent high-definition, high-brightness, and high color gamut liquid crystal display technology, embedded hardware splicing technology, multi-screen image processing technology, signal switching technology, etc. into one, forming a high brightness, high definition, low power consumption, high life, advanced liquid crystal splicing curtain wall display system. Liquid crystal splicing curtain wall is a new kind of large-screen splicing method, which can be infinitely spliced. Flat-panel splicing display technology will be the mainstream application technology of the next generation of splicing display system. Liquid crystal display technology has developed over the years, has occupied an important position in the field of flat panel mosaic display.  The advantages of the splicing curtain wall, such as ultra-light, ultra-thin, long life, low maintenance cost, low power consumption, no radiation, high-definition, stand out, and attract attention.  The LCD mosaic curtain wall, with the LCD screen as the basic display unit, integrates the latest LCD display technology and pure hardware high-speed real-time splicing control technology, all input signals can be freely displayed in the window of the display wall, and fully supports cross-screen, roaming, picture-in-picture, superimposition, zoom, and other high-end display functions. The controller is tailor-made for the display, dedicated to the machine, and can maximize the performance of the display unit.  The LCD mosaic wall provides clear images, flexible and diverse combinations, rich display content, giving users maximum freedom to design and provide shocking display results. The LCD splicing wall is widely used in video surveillance, telecommunications, public utilities, process processing, traffic control, security monitoring, national defense, stage entertainment, TV studio, stocks, large exhibition, shopping malls, banks, office halls, company welcome screen, stores, scheduling command, etc. The practicality of the LCD splicing wall is very important. The practicality of LCD splicing curtain wall has a large combination of space: can use small screen splicing, can also use large screen splicing; can be a single screen splicing or a pair of M × N whole screen splicing; can also be a combination of large and small screen splicing. According to the customer on the LCD splicing curtain wall system proposed system scale and application requirements, according to the use of the system environment, choose the right product and splicing mode, design a specific implementation plan to meet the application requirements of the system.


  According to the user's requirements for the input signal, choose different video processing system, VGA, composite video, S-VIDEO, YPBPR/YCBCR, or DVI signal input, to meet different occasions, different signal input requirements. Through the control software, it can realize various signal switching, splicing into a full-screen display, any combination of display, image stretching display, image roaming display, image superimposed display, etc. The LCD splicing curtain wall can be customized to meet the different needs of customers, providing different implementation plans and technical support.

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The working principle and application of liquid crystal screen splicing