Weak current College】 【how to choose the suitable mosaic display programme.

<br> <br> Liquid crystal mosaic display unit because of its slim's screen body becomes the leading type of mosaic display technology, in recent years, liquid crystal display (LCD) for add-on unit for large-screen system, big-screen .monitor applications gradually attention, on the one hand, from appliances LCD TV's go high, this trend, the liquid crystals in other industry gradually as a trend. On the other hand, LCD related parameters in the increase, low power consumption, light weight, .long life (typically a functioning 5 thousand hours), with no radiation, screen brightness uniformity, bright color, etc., and the concatenation of gap shrinking, reached the minimum single slot, increasing downward price 11mm, used in industrial control, information release ., video surveillance, and other broad area of narrow LCD display system splicing the construction cost of relatively low, this is the narrow LCD display system splicing the inevitable reasons emerged. How to choose your own mosaic programmes, has also become a user compare concern the .following for you in a number of ways to illustrate: <br> First, select the display scale <br> <br> DID narrow side LCD display system splicing 40 inch and has 46 inch two kinds of specifications. <br> <br> .First, from the height and width of the room. <br> <br> For example, an indoor display area is reserved for the wall: 8.8 m 3.2 meters high. <br> <br> The first step, first with height minus .1 meters height of the bottom bearing, 3.1 m-1 m = 2.2 m. <br> <br> Next to the monitor from the displayed height of the selected dimension, 16: 9 display specification, 40-inch height General 520 ~ 550mm ., width General 910 ~ 950mm, 46-inch General 600 ~ 630mm, width General 1040 ~ 1080mm, 4. <br> <br> According to the basic dimensions we to calculate the number of stacked layers, 40 inch: 2200 ÷ 550 = .4, 4, 46 inch: 2200 ÷ 630 ≈ 3.5, rounded up to 3 layers. Following us to confirm that the display width, 8.8 m net size of the room, the display of the region should be part of the Middle, you need .to subtract the two sides of the door or decorative width at least 3 meters, the width of the wall that reality to many 5.8 m, then you can arrange to calculate the number of the monitor, the 40 inch: 5800 ÷ 950 ≈ 6.1, .integer, and a maximum of 6 columns; 46 inch: 5800/1080 ≈ 5.4 integer, up to 5 columns. <br> <br> In this way, the theory of mosaic size came out: 40 inch, 4 × 6; 46 .-inch, 3 × 5. <br> <br> Next, we'll make a selection. 40-inch apply selection: 2 × 2 × 2, 3, 4, 2 × 2 × 6, 3 × 3 × 2, .3, 3 × 4, 6, 3 × 4 × 4 × 4, 6, 46 inch of applicable selection: 2 × 2 × 2, 3, 4, 2 × 3 × 3 × 2, 3, 4, 3 × 3 × .5. <br> <br> If you are big screen video monitor screen displays all the images or the command control displays with high resolution images, it is recommended that you choose the right specifications, generally, the 2 × 2, 3, 3 .× 4 × 4, because it is 16: 9 screen, so the General choice principle is the number of columns or rows, ≤ graphics will appear flat slab. <br> <br> If only a single screen display, no combination of Zoom .display purposes, its mosaic size can design according to the maximum size. <br> <br> In this example, the appropriate selection of the entire wall is: 3 × 3, 46-inch; 4 × 4, 40 inch. <br .> <br> Alternative best principles generally follow the same size, large size and priority, the reason is the large number of mosaics of gap, the overall style concise. <br> <br> Another option is, in the same plane, display .the number of do more, generally used in the video image monitoring a large number of occasions. <br> <br> 2. shows the signal needs analysis and equipment selection <br> <br> Signal analysis: <br> <br> .Big-screen mosaic field color display signal is generally classified into three categories: video, computer, network. <br> <br> DID narrow LCD display system splicing with perfect video and computer interfaces, currently has a network interface, thus, mainly in .the video image and computer screen. <br> <br> Video interface provide: General composite audio / video RCA input, YCbCr color analog input a set of interfaces used for industrial purposes; BNC card header. Cable specifications commonly used for 75-3 ., 5, 75-75-9 three, General indoor use 75-3: transmission distance control in 100 meters; 75-5: transmission distance of 100 m-300 m, the major cable: 400-800 meters; 75-9: .transmission distance in the 300 m-300 m; 800 m, the major cable: 800-1600 meters; 800 m-20 km away, fibre. More than 20 km away, fibre + network. <br> <br> Computer interfaces provide .: General VGA analog computer input pin and all the way; D-Sub15 RGBHV two main specifications, diameter usually 75-2, 3, 75-75-5. VGA transmission distance 75-2, 20 m-30 m, 75-3 .line, 30 m-50 m, 75-5-50 m-100 m. <br> <br> Digital computer interfaces provide: General DVI digital video or HDMI digital audio and video input all the way; common specification of 1.8 m- .15 m. <br> <br> For advertising media publicity, it will be fixed using composite video interface, or configure the HD player using chromatic aberration, DVI and HDMI interfaces; <br> <br> For pure video control room, you .will only use composite video; <br> <br> For the command control and industrial control center will display a mixture of video and computer; <br> <br> For business office Hall or business centres, mainly in the video signal, which .is mainly used for business advocacy and information dissemination, depending on the image to display, you can choose to configure high-definition playback device. <br> <br> Image DepartmentRegulating device: <br> <br> Commonly used video equipment including video .splitter, video signal extenders, video matrix switches, video signal multi-screen processor, the video signal converters that several major equipment. <br> <br> Video distributor, mainly for the source video output signal is copied into multiple output; main application .type is 1 3, 1 4, 1-8, 1 minute 16 four kinds of specifications. The interface is divided into two RCA or BNC. <br> <br> Video signal Extender is used primarily to the addition of video signal attenuation, .video signal transmission distance does not exceed 100 m indoor, does not need to configure the signal amplifier, more than 100 m signal Extender is used; <br> <br> Video Matrix Switcher, mainly for multi-channel video signal input and output channel .switching, implement 1-in the amount of the excess. Divided into two RCA or BNC connectors. <br> <br> Video signal multi-screen processor, mainly for the multi-channel input signal in a screen display of the common specifications for .4 screens, 6 screens, 9, 13, 16 five-screen format. <br> <br> Video signal converter key features are the video signal is converted into computer VGA signal output. <br> <br> Computer signal processing equipment including .VGA signal splitter, VGA signal extenders, VGA matrix switcher or RGB matrix switcher. <br> <br> VGA signal splitter is used to copy the output port of the computer into multiple VGA output, common specifications for one (1) point 2, .1 4, 1-8, 1: 16. <br> <br> VGA signal extenders, mainly for computer signal long-distance transmission, a twisted pair transmission and optical fiber transmission in two ways, 200 meters using twisted, 200 meters above .the sea level must use fiber optic transmission. <br> <br> VGA matrix switcher or RGB matrix switch is on the computer signals multiplexer input and output channel selection, 1-in-to-many or many-to-many, can be .exchanged. VGA matrix switcher using computers common VGA interface, RGB matrix switcher is a computer signal into red, green, blue, row frequency, field frequency 5 separate channel, its transmission signal stability, far distance, common VGA 5BNC interface. <br> .<br> Multi-screen controller: <br> <br> Mainly used in video, computer, network, signal of hybrid display. You can remote network logon management, image display and convenient, you can display a screen, window displays, single .screen more roaming picture display. <br> <br> Multi-screen controller can access up to 32 channels of video input (with expansion chassis can access more), a regular 4-way VGA input, 2 way network input and output cable you .can use the VGA or DVI output channel number and screen number. <br> <br> With DLP, PDP plasma splicing wall and DID the competition increasingly liquid crystal mosaic has the advantage of the liquid crystal mosaic has gradually been more industries and areas of .recognition, the bottleneck is now flat Mosaic Mosaic gap is the LCD Panel cutting technology is difficult to do small, generally around 10mm. But as the LCD Panel technology development and believed that this deficiency will soon be improved significantly. <br> <br> .<br> <br> <br>.