When professionals in the LED display industry gather, conversations often revolve around LED display products: topics like dot pitch, refresh rates, and constant current drive are common. If you’re unfamiliar with these terms, such discussions can feel overwhelming. So, what should you do? It’s often said that mastering the terminology is the first step to appearing knowledgeable about LED displays. Today, we’re sharing the most comprehensive guide to LED display terminology, designed to transform you from a novice to an expert in no time!
1. What is LED?
LED stands for Light-Emitting Diode. In the display industry, it specifically refers to LEDs that emit visible light.
2. What is a Pixel?
A pixel is the smallest light-emitting unit of an LED display, similar to the pixels in a computer monitor.
3. What is Pixel Pitch (Dot Pitch)?
Pixel pitch refers to the distance between the centers of two adjacent pixels. The smaller the pitch, the shorter the viewing distance. In the industry, pixel pitch is often abbreviated as P.
4. What is Pixel Density?
Also known as dot matrix density, pixel density refers to the number of pixels per square meter on the display.
5. What is an LED Display Module?
An LED display module is the smallest independent unit of an LED Screen, composed of multiple pixels. Common configurations include 8×8 and 8×7 pixel arrangements.
6. What is DIP?
DIP stands for Dual In-line Package, a traditional method of assembling electronic components.
7. What is SMT? What is SMD?
- SMT stands for Surface Mount Technology, the most widely used method in electronic assembly today.
- SMD stands for Surface Mount Device, referring to components mounted using SMT.
8. What is an LED Display Module?
An LED Screen module is a basic unit with a circuit and installation structure that can form a functional display screen when assembled.
9. What is an LED Display Screen?
An LED display screen is composed of an array of LED devices controlled to display images or videos.
10. What is Luminous Brightness?
Luminous brightness is the intensity of light emitted per unit area of the LED display, measured in cd/m² (candela per square meter). Simply put, it’s the brightness of one square meter of the display.
11. What is Brightness Level?
Brightness level refers to the range of brightness adjustment, from the lowest to the highest, either manually or automatically.
12. What is Maximum Brightness?
Maximum brightness is the highest brightness level achievable by an LED video wall under specific ambient lighting conditions, with each primary color at its peak brightness and grayscale.
13. What is White Balance and White Balance Adjustment?
- White balance refers to the balance of white light, achieved by adjusting the brightness ratio of the three primary colors (RGB).
- White balance adjustment involves fine-tuning the RGB brightness ratios to achieve accurate white light.
14. What is Contrast Ratio?
Contrast ratio is the ratio of the maximum brightness of the LED display to the background brightness under specific ambient lighting conditions.
15. What is Refresh Rate?
Refresh rate is the number of times the display updates its image per second, measured in Hertz (Hz).
16. What is Viewing Angle? What is Optimal Viewing Angle?
- Viewing angle is the angle at which the display’s brightness drops to half of its maximum when viewed from the side. It’s divided into horizontal and vertical viewing angles.
- Optimal viewing angle is the angle at which the display’s content is clearest, with no color distortion.
17. What is the Typical Aspect Ratio of LED Screen?
- Graphic screens: Aspect ratio depends on the content being displayed.
- Video screens: Typically 4:3 or close to 4:3. The ideal ratio for modern displays is 16:9.
With this guide, you’ll be well-equipped to navigate conversations about LED Screen like a pro!