LCD monitor is a flat panel display, which uses liquid crystals. Although laptops have used LCD’s as their flat panel technology almost exclusively, LCD is also the most popular for flat panel desktop monitors. Toward the end of 2003, sales of LCD displays for desktops overtook CRTs for the first time.
Important Specifications
The following are the important factors to consider when evaluating an LCD monitor:
Resolution:
The horizontal and vertical size expressed in pixels (e.g., 1024×768). Unlike CRT monitors, LCD monitors have a native-supported resolution for best display effect.
Dot pitch:
Dot pitch is the distance between the centers of two adjacent pixels. The smaller the dot pitch size, the less granularity is present, resulting in a sharper image. Dot pitch may be the same both vertically and horizontally, or different.
Viewable size:
The size of an LCD panel measured on the diagonal and more specifically known as active display area.
Response time:
Response time is the minimum time necessary to change a pixel’s color or brightness. Response time is also divided into rise and fall time. For LCD Monitors, this is measured in BTB (black to black) or GTG (gray to gray). These different types of measurements make comparison difficult.
Refresh rate:
The number of times per second in which the monitor draws the data it is being given. A refresh rate that is too low can cause flickering and will be more noticeable on larger monitors. Many high-end LCD televisions now have a 120 Hz refresh rate current and former NTSC countries only. This allows for less distortion when movies filmed at 24 frames per second (fps) are viewed due to the elimination of telecine. The rate of 120 was chosen as the least common multiple of 24 fps (cinema) and 30 fps (TV).
Viewing angle, Brightness and Color support:
How many types of colors are supported? The amount of light emitted from the display
Contrast ratio:
Contrast ratio is the ratio of the intensity of the brightest bright to the darkest dark.
Aspect ratio:
The ratio of the width to the height Input ports (e.g., DVI, VGA, LVDS, or even S-Video and HDMI).
Important Specifications
The following are the important factors to consider when evaluating an LCD monitor:
Resolution:
The horizontal and vertical size expressed in pixels (e.g., 1024×768). Unlike CRT monitors, LCD monitors have a native-supported resolution for best display effect.
Dot pitch:
Dot pitch is the distance between the centers of two adjacent pixels. The smaller the dot pitch size, the less granularity is present, resulting in a sharper image. Dot pitch may be the same both vertically and horizontally, or different.
Viewable size:
The size of an LCD panel measured on the diagonal and more specifically known as active display area.
Response time:
Response time is the minimum time necessary to change a pixel’s color or brightness. Response time is also divided into rise and fall time. For LCD Monitors, this is measured in BTB (black to black) or GTG (gray to gray). These different types of measurements make comparison difficult.
Refresh rate:
The number of times per second in which the monitor draws the data it is being given. A refresh rate that is too low can cause flickering and will be more noticeable on larger monitors. Many high-end LCD televisions now have a 120 Hz refresh rate current and former NTSC countries only. This allows for less distortion when movies filmed at 24 frames per second (fps) are viewed due to the elimination of telecine. The rate of 120 was chosen as the least common multiple of 24 fps (cinema) and 30 fps (TV).
Viewing angle, Brightness and Color support:
How many types of colors are supported? The amount of light emitted from the display
Contrast ratio:
Contrast ratio is the ratio of the intensity of the brightest bright to the darkest dark.
Aspect ratio:
The ratio of the width to the height Input ports (e.g., DVI, VGA, LVDS, or even S-Video and HDMI).
No comments:
Post a Comment