There are generally two screens and four screens.
Multi-screen card is a kind of graphics card, which is inserted into the PCI slot of the computer. Install the driver and you can use it. If a four-screen card is used, four monitors can be arranged in a row for splicing. Pretty cool! Ha ha! but
This kind is mostly used in professional occasions, design, production, medical treatment, monitoring, or other functions.
Professional multi-screen cards are expensive, ranging from 3 thousand to 10 thousand yuan each.
The simplest way, you can use two VGA output or two DVI output graphics cards, and you can cooperate with the driver to make a dual-screen extended display. It's also very cool!
The following is the explanation of multi-screen card.
Multilayer screen
Multi-screen card is a special graphics card with different names, including multi-screen card, multi-screen display card and multi-head card.
Head), multi-head graphics card, etc. If your job is to deal with a lot of information, such as images, words, videos and so on. You should be busy with frequent switching of various applications. Even a 25-inch monitor
Can't meet your requirements. Do you want a bigger screen? Or there are several monitors for you to use at the same time, and you want to display different application windows or splices in your computer on each monitor.
Display the same content, then you need a multi-screen display card to help you.
Multi-screen graphics card can make a PC support multiple monitors/TVs; Display different pictures on different screens, and several monitors/TVs can be combined together.
Overall situation; The mouse can roam freely between multiple screens, move the cursor smoothly from one screen to any other display, and expand any application from occupying one screen to occupying two or more.
Multiple screens, and different applications can switch between different screens at will. In addition, a computer can install multiple cards at the same time, choose the number of screens at will, and arrange the screen modes at will; This will make you more obvious.
Display information, more comfortable and convenient.
Multi-screen cards can display all kinds of software and information you need on their respective screens at the same time. For example, to process the word list, you can download this word (EXCELL) file directly from.
WINDOWS Explorer is dragged to the word list processing software. Or maximize the opening of the web browser and email manager on two screens. The benefits of multi-screen graphics cards are not only increased.
Wide working window size, more importantly, more different working windows can be realized through a PC, which provides a broad field for your work.
Application field of multi-screen graphics card
Large screen splicing (splicing cg animation, splicing dynamic video) projection wall; Public security, military, railway, transportation, aerospace, post and telecommunications, satellite launch and other command and dispatch systems; Graphic image editing, 3D animation, multimedia design.
Rice; Process control in industrial field; Securities trading, futures and bank information display; CAD/CAM design, typesetting and editing system, video image editing.
Number of screens supported by multi-screen card
The number of supported screens is the most important technical index of multi-screen graphics cards. At present, the common multi-screen graphics card can support 2 screens, 4 screens and 8 screens, which are basically the square of 2. Theoretically, the number of screens supported by the system is acceptable.
In order to expand by inserting a multi-screen graphics card, consider the number of PCI slots on your computer motherboard. If you need to display more screens but fewer PCI slots, then you are shopping.
You should make a reasonable calculation and choose a multi-screen graphics card that supports more screens.
What display chipset does the multi-screen card use?
Like ordinary graphics cards, the performance of multi-screen graphics cards depends largely on the performance of the display chipset. It uses multiple chipsets to support multi-screen display. By understanding the core of the display, the buyer can
Film information, know something about the performance of multi-screen cards.
Resolution supported by multi-screen card
Resolution is no stranger to friends with graphics cards and monitors. As a device supporting display output, the resolution of multi-screen graphics card is also a very important technical performance index of multi-screen graphics card. and
Just like choosing an ordinary graphics card, it is enough to know the format type, quantity and resolution supported by the product, as well as the refresh rate and color in this case.
Multi-screen display mode and control supported by multi-screen card
At present, there are two modes to drive the universal multi-screen graphics card. One is to directly use Windows 98/2000/XP and other operating systems to support multi-screen display.
Function. In this driving mode, each output port can be set with different resolution, which is more suitable for fields that need multi-task and multi-display windows. For example, another display mode of AutoCAD is called overlay display.
Display mode, it is easier to display a display window or application program by splicing multiple screens, such as splicing screen walls and displaying industrial process control configuration software. Design, web design, text typesetting, securities and stocks
Display and other fields.
No matter what kind of display driving mode, the arrangement of display screen in application can't be fixed, so how to switch and adjust the operation mode is very important. Production by different manufacturers
Products have different designs, such as HYDRAVISION multi-screen control software provided by Appian company, which enables customers to control multi-window and multi-task display conveniently.
Multi-screen card output interface type
The multi-screen display card can support TV and other video output devices (such as Taiwan Province Video-UFO display card with video output port) in addition to the conventional display, so it supports output.
The types of input and output interfaces are also important. Common interfaces include VGA interface, DVI interface and video interface.
Multi-screen card extension function
Some multi-screen graphics cards have many accessories to enhance their functions, which can make them more powerful. So when shopping, you should choose according to your actual situation. Multi-screen card addition
NTSC/PAL/SECAM
Video capture chips, such as Jpro four-screen card of Appian company and PROMEDIA four-screen card of COLOGRAPHIC company, all have video capture chips. This option enables multi-screen card products to be broadcast.
Play the external video source signal, and play it in the form of a window on the display under the playing software provided by the multi-screen card.
Multi-screen card supports 3D, OpenGL and other technologies.