LED stands for Light Emitting Diode. A LED display uses LED pixels to show text, images, and videos. It usually includes both the LED screen and the related control system. If you plan to buy LED display from China, this guide will help you understand types, specifications, and selection tips.
LED Board Types and Characteristics
Indoor or Outdoor LED Display
According to the environment, LED displays are divided into indoor LED display and outdoor LED display.
Indoor LED display works in indoor places. It offers moderate brightness, wide viewing angle, light weight, and higher resolution. Therefore, it is suitable for close viewing distances from 0.5 m to 10 m.
Outdoor LED screen works outside. Its brightness is usually above 5000 cd/m², so it remains visible under direct sunlight. Moreover, outdoor displays are large, support long-distance viewing, and have good waterproof and dustproof performance.
Fixed or Rental LED Display
According to installation, LED displays are divided into fixed LED display and rental LED display.
- Fixed LED screen stays in one place, for example at airports, restaurants, or shopping malls.
- Rental LED screen is portable and mobile for events, such as concerts, sports, and conferences. It comes in different shapes and sizes, which improves stage effects.
In addition, LED displays can also be advertising signage, sports LED signage, transparent LED display, or floor LED screen.
Product Key Indicators and Requirements
Pixel Pitch and Density
Pixel pitch is the distance between the centers of two pixels. Smaller pitch means higher density and closer viewing distance. Larger pitch means lower density but is suitable for long-distance viewing.
Driving Technology
Currently, LED displays use two driving technologies: common anode and common cathode. Most products adopt the common anode. However, common cathode saves more energy and will lead future development.
Brightness
- Outdoor LED screen: usually above 5000 cd/m².
- Indoor LED screen: usually up to 600 cd/m².
The brightness must match the environment. Too high or too low brightness causes eye discomfort and increases cost.
Gray Scale
Gray scale is the brightness level between the darkest and brightest of any primary color. The fuller the gray scale, the better the display effect.
Color Temperature
Color temperature defines the color of a light source. The LED screen color temperature can be adjusted to achieve the best visual results.
Correction Technology
Single-point correction adjusts LEDs with different brightness by current control. This ensures display consistency. Furthermore, LED single-point correction makes thousands of LEDs emit uniform light, which improves brightness and chromaticity.
Viewing Angle
A larger viewing angle ensures clearer and more uniform images when viewed from any direction.
Main Factors When Buy LED Display From China
- Define your requirements clearly.
- Consider installation type (fixed, rental, or transparent).
- Compare suppliers and check certifications.
- Evaluate after-sales service and warranty.
👉 For extra tips, Get our LED Display Buying Guide.
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