The LCD splicing screen has the advantages of ultra-light, ultra-thin, long life, low maintenance cost, low power consumption, no radiation, high definition, etc., and is well received by users. With the improvement of urban management informatization, whether it is street advertisements or large video screens in the management center, it seems that the shadow of LCD splicing is indispensable.
With the rapid development of liquid crystal display technology, LCD splicing screens and "liquid crystal seamless splicing walls" have also gained more extensive development space in the application of this era.
So, in contrast, what are the differences between them? Today, let’s analyze the composition structure.
1. What are the standard configurations of LCD splicing screens?
The large-screen splicing screen is composed of multiple single screens, which use multiple display screens to display a complete large image. It is mainly composed of liquid crystal display, signal switching and distribution, image processor, control system and other parts. The display quality of the splicing unit directly affects the effect of the entire projection wall. The use of different types of projection units will produce different effects. Each splicing unit can receive the RGB signal sent by the image processor or the RGB signal directly output by the computer. Video signal, etc. The signal switching part is composed of video signal and computer signal switching.
LCD splicing screen
This part is mainly to switch the video signal and computer signal to the input end of the image processor or projection unit for display. The signal distribution part is composed of a distributor, which mainly ensures that the display images of the local display and the projector are the same. The image processor is the core of LCD splicing. It divides a complete image signal and allocates it to each video display unit, completing a super-large dynamic image display screen with multiple ordinary video units. The video wall processor can realize the combination of multiple physical outputs into a super high resolution display output with superimposed resolution, so that the screen wall can form a logical display screen with super high resolution, super brightness and super large display size. The signal source (network signal, RGB signal and video signal) can be displayed in various ways such as windowing, moving, and zooming on the screen wall.
The management of the large LCD splicing screen is realized by software or a central control system, which can realize functions such as adjustment of the splicing wall, window management, network control, and matrix switching. The manufacturer will also pre-store some commonly used modes, and the user can call the pre-stored mode at any time during use to achieve the desired effect. Although the current LCD splicing is not perfect for us. But LCD splicing is still one of the most ideal choices for everyone. It can be seen that although everyone’s current pursuit of LCD splicing has elements that blindly follow the trend, in terms of the overall characteristics of the current large-screen display technology, LCD splicing is still our most ideal choice among many candidates for display applications.
2. What are the standard configurations of LCD seamless splicing walls?
1. The basic composition of the LCD splicing wall: rack, splicing unit, matrix (distributor), host computer, control software package, and various wires
2. LCD splicing wall display size and appearance size calculation The size of the TV wall is conventionally calculated by the number of curtain wall units (width m * height n) and the size of the unit. For example, a 4x4 40" curtain wall has 4 units wide and 4 units high and a total of 16 40" LCD units. The 40" TV wall unit has a width of 911.7mm and a height of 524.2mm. The display area of the curtain wall is 4x911.7=3648mm and 4x524. 2=2096.8mm. For specific use, you can choose vertical or wall-mounted installation according to the installation environment. When you choose different installation methods, add the size of the side cabinet and the vertical low seat to get the appearance size of the curtain wall.
3. Splicing unit: The Provens splicing curtain wall uses DID LCD screen and has been technically processed to make it meet the design requirements of the splicing curtain wall.
a. The outer frame is colored. The outer frame of the processed LCD screen is completely black, forming a whole with the curtain wall, which is beautiful and generous.
b. The LCD hanging design pioneered by Providence. By processing the structure and technology of the liquid crystal screen, the traditional installation form of the liquid crystal screen is changed, and the installation and disassembly of the liquid crystal unit becomes very convenient. This technology has been patented.
Power supply: Each unit of the splicing curtain wall has an independent switching power supply module. The input of the whole machine uses a single-phase three-wire AC power supply with a protective ground, and the entire engineering system uses the same protective ground. Do not use unprotected power supply, and the grounding pin of the power cord cannot be damaged.
Matrix switcher: The matrix switcher is a switching device that switches and distributes VIDEO or VGA signals. It can switch multiple VIDEO and VGA input signals to any one or more output channels at the same time. The device has on-site power failure protection function, can save the working state of the device before shutting down, has an RS-232 communication interface for online use with a computer, and provides communication protocols and demonstration programs to facilitate online use.
Host computer (control host) Curtain wall system control provides a software package, which can be installed on any brand of PC. In windows environment, run the software and communicate through RS232 serial communication, which is used to control the signal and various functions of the curtain wall.
