Screen size is measured diagonally, from one corner of the screen to the opposite corner. This measurement is typically expressed in inches (in) or centimeters (cm).
Understanding Screen Size Measurement
The screen size measurement you see advertised for a device is not the actual size of the display. It's the diagonal measurement, meaning the distance from one corner to the opposite corner, measured in a straight line.
Here's a breakdown of how screen size measurement works:
- Screen Aspect Ratio: The screen size measurement is often paired with the screen's aspect ratio, which describes the width and height of the screen. Common aspect ratios include 16:9 (wide-screen) and 16:10 (more square-like).
- Bezel Size: The bezel is the frame around the screen. The advertised screen size does not include the bezel width. This means the actual visible screen area is slightly smaller than the advertised measurement.
- Active Area: The active area refers to the actual display area, excluding the bezel. This is the area where images and content are displayed.
Practical Implications of Screen Size
Understanding screen size is crucial when:
- Choosing a new device: Larger screens offer a more immersive experience but can be less portable.
- Comparing different devices: You can use screen size measurements to compare the physical dimensions of devices.
- Calculating display resolution: Screen size and resolution are closely related. Higher resolution screens provide sharper images but require more processing power.
Example:
A smartphone with a 6.5-inch screen has a diagonal measurement of 6.5 inches. However, the actual visible display area might be slightly smaller due to the bezel width.
