Detailed description of monitor types and parameters
If you're planning to buy a monitor, it's important to understand the different types and key specifications that can affect your choice. Do you know what parameters matter most when selecting an LCD monitor? The following guide will help you navigate the key features and classifications of modern monitors to find the right one for your needs.
**First, the Key Parameters**
When purchasing an LCD monitor, the first thing to consider is the **screen size**, or "viewing area." Unlike CRT monitors, the size of an LCD refers to the actual visible area. For example, a 15-inch LCD is roughly equivalent to a 17-inch CRT, while a 19-inch LCD is similar to a 21-inch CRT. Common sizes include 3.5", 5.6", 8", 10.4", 12", 15", 17", and 19" with a 4:3 aspect ratio, and larger options like 22", 26", 32", up to 82" with a 16:9 ratio.
Another crucial parameter is **response time**, which measures how quickly the monitor can change from one image to another. Modern LCDs have improved significantly, with response times now as low as 4ms. This affects how smoothly motion is displayed. For gaming or high-speed video, a faster response time (under 16ms) ensures clearer visuals without blur or ghosting. Most mainstream models today offer 8ms or 12ms, providing excellent performance for everyday use.
**Brightness and Contrast** are also important. Brightness is measured in candelas per square meter (cd/m²) or nits, indicating how bright the screen can get. Higher brightness is ideal for well-lit environments. Contrast, on the other hand, refers to the difference between the brightest and darkest parts of an image. A higher contrast ratio (like 1000:1 or more) results in sharper images and deeper blacks.
The **color gamut** determines how many colors the monitor can display. Standard LCDs usually cover about 72% of the sRGB color space, but some high-end models, like those used by Longview, can reach up to 92%, offering richer and more accurate colors.
**Viewing angle** is another factor. LCDs tend to show color distortion when viewed from the side or above/below. A wider viewing angle (up to 89° horizontally and vertically) ensures better visibility from different positions. This is especially useful in shared workspaces or for users who move around frequently.
Lastly, the **number of dead pixels** is an indicator of quality. Monitors are graded based on this: AA grade means no dead pixels; A grade allows up to 3, with no more than one bright spot in the center; B grade allows up to 3, and C grade indicates more than 3 dead pixels.
**Second, the Classification**
LCD monitors come in various sizes, including sub-3.5", 5.6", 8", 10.4", 12", 15", 17", 19", 22", 26", 32", up to 82". They are also categorized by usage: security monitors, surveillance monitors, broadcast monitors, industrial monitors, and general-purpose displays. Each type is designed for specific applications, so choosing the right one depends on your needs—whether it's for home use, professional work, or industrial settings.
By understanding these parameters and classifications, you can make a more informed decision when selecting the best LCD monitor for your purpose.
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