The devices are usually used for display, projection, or for physical reproduction. Monitors and printers are two of the most commonly-known output devices used with a computer. Computer output devices are all peripheral hardware, and are connected to a computer by cables, or by wireless networking. A computer can still function without an output device. There is no indicator of errors, nor of the need for additional input.
Monitor — This is the most common computer output device. It creates a visual display by the use of which users can view processed data.
Monitors come in various sizes and resolutions. All monitors depend on a video card, which is positioned either on the computer motherboard or in a special expansion slot.
The video card sorts out the computer data into image details that the monitors can then show. Altogether, these are referred to as a component video signal. A characteristic of this technology is its ability to input and output high-quality analog video signals by omitting the process of video-signal separation and combination. A component video port has separate connectors for each of the three video-signal types: A green connector for the Y signal, a blue connector for the Pb Cb signal, and a red connector for the Pr Cr signal.
In most cases, the compatible video formats are i, p, p, and i, with connectors labeled Y, Cb, and Cr compatible with i video and connectors labeled Y, Pb, and Pr with higher-quality video formats. While component video ports offer higher quality and greater benefits than most other types of analog video input, they also entail inconveniences, including more troublesome connections since they use three connectors and greater space requirements on devices equipped with such ports.
Additionally, they are incapable of transmitting control signals. A D-Terminal connector combines the three types of component video signals into a single cable and is easier to connect.
It also embeds a control signal to identify scanning lines, scanning method, and aspect ratio. In passing, it's called a D-Terminal only because its connector is shaped like the letter "D"; the "D" does not mean "digital. The table below gives the types of D-Terminals D1 — 5 and corresponding video formats. While many products feature D5 terminals, which are compatible with p video, this is not specified in the official JEITA standard. Comparisons of picture quality between component video and D-Terminal standards show that component video, with its three separate connectors, offers higher picture quality, due to structural characteristics of the cable and connector.
Many believe this difference becomes even more marked with longer cables. Let's consider S-Video and composite video ports. Video consists of a brightness signal and a color signal, combined to create a composite video signal. A composite video port transmits the composite video signal as is; an S-Video port transmits the composite signal separated into a brightness signal and a color signal.
Since less processing is needed to combine and separate the brightness and color signals, an S-Video port provides higher picture quality than a composite video port. Additionally, there are two types of S-Video ports: S1, which can identify video with aspect ratios of and ; and S2, which can identify "letterbox" video with black bands above and below, to display aspect-ratio video on aspect-ratio monitors. A display device receiving video with a aspect ratio or letterbox video performs the appropriate scaling to display the correct aspect ratio.
They are likely to be phased out gradually in the future, except for applications requiring the connection of older video equipment such as VHS video decks or DV cameras. Analog video interfaces, including D-Terminal and component video, can be summarized as follows, in descending order of general perception of picture quality: component video, D-Terminal, S-Video, and composite video. Let's conclude by returning to the subject of PC environments.
While USB was not originally intended as a display interface, demand has emerged for an easier way easier than using a D-Sub cable to set up multi-monitor environments, particularly for laptops and low-priced netbooks. These are then connected to LCD monitors. After the user installs a device driver, the PC recognizes the adapter as a monitor adapter.
Users can create a multi-monitor environment in Windows by activating the secondary monitor connected to the adapter in Display Properties. In terms of display performance, these adapters are not well suited to uses that require high-speed response; they are associated with slight delays in reflecting mouse or keyboard operations.
These, too, are ideal for laptops and netbooks, since they allow users to use laptops connected to large-screen LCD monitors at their office desks or at home, then use the laptops for mobile use when out and about simply by unplugging a single USB cable.
Ordering and questions 1 or contact us. A basic understanding of touch panels Is the beauty of a curve decisive for color reproduction? A close look at LCD video performance The difference in image quality is perfectly obvious!
LCD monitors feature a wide range of video input interfaces Driven by demand for higher-resolution monitor environments and the proliferation of high-definition devices, the types of video input interfaces "interfaces" hereinafter found in LCD monitors continue to proliferate. Input terminals of the FlexScan EV monitor The interfaces for LCD monitors designed for use with PCs can be grouped into two categories: analog interfaces, carryovers from the days of CRT monitors, and the digital interfaces developed more recently.
Page Top. A D-Sub female connector photo at left installed on the monitor side and a D-Sub male connector center photo on the cable side. A D-Sub cable features a screw on each end of the connector that can be turned by hand to prevent unintended disconnection photo at right. A DVI-D female connector installed on the monitor side photo at left and a DVI-D single-link pin male connector installed on the cable center photo.
As with D-Sub cables, a DVI-D cable can be secured into place by turning the screws on either end of the connector photo at right. Pin layouts identify the DVI connector type. The HDMI connector has 19 pins. We can also custom design and manufacture a monitor with and without touchscreen, customized the cabling, and custom add or remove technology to fit your industry requirements. Different types of monitor ports. Different types of monitor ports Xenarc Technologies offers the best in industry truly rugged LCD Monitor and Touch Screen Display solutions that are designed and built to last.
DVI : Video only, perfect for older systems or for Hz at p. VGA: Old, legacy video connector. Only to be used when nothing else available. Thunderbolt: A hardware interface developed by Intel in collaboration with Apple that allows the connection of external peripherals and monitors to a computer. Common, but old. Monitor with VGA port. Monitor with DVI port. Modern types. Monitor with HDMI port — the king of multimedia.
Monitor with Display Port — only becomes ubiquitous. Monitor with USB port. In conclusion. Login Register.
0コメント