As TFT-LCD displays become integral to devices from smartphones to TVs, understanding how to measure their size accurately is crucial. This guide breaks down the science behind TFT-LCD display sizing for consumers and industry professionals.
1. Diagonal Length: The Fundamental Metric
TFT display size is defined by the diagonal length of the visible area, measured in inches (1 inch = 2.54 cm). For instance, a 10.1-inch screen has a 25.66 cm diagonal (10.1×2.54).
2. Calculating Width & Height via Aspect Ratio
Using the Pythagorean theorem and aspect ratio (e.g., 16:9), dimensions can be derived. For a 10.1-inch 16:9 display:
Width ≈ 8.8 inches
Height ≈ 4.95 inches
3. Key Considerations
Measurement Scope: Only the active TFT-LCD display area, excluding bezels.
Manufacturer Specifications: Slight variations may exist between brands.
Usage Context: Match size to application.
4. Common Sizes & Applications
Selecting the optimal TFT-LCD display requires evaluating diagonal length, aspect ratio, and usage scenarios. Please consult manufacturer datasheets for precise metrics.
Post time: Apr-29-2025