SMD 1921 mainly refers to a surface-mount lamp bead model for LED display screens. Specifically, SMD 1921 lamp beads are widely used in the field of LED display screens, especially in outdoor full-color display screens.
The following is a detailed analysis of SMD 1921:
1. Definition and characteristics
Definition: SMD 1921 is an LED lamp bead packaged using surface mount technology (Surface Mounted Device, referred to as SMD), and its name may be derived from a specific package size or model number.
Features:
Waterproof and UV-resistant: This model of LED usually has good waterproof and UV-resistant properties and is suitable for outdoor environments.
High brightness: It can provide higher brightness output to ensure that the display screen is still clearly visible in strong outdoor light environments.
Good stability: Made of high-quality materials and advanced processes, it has high stability and reliability.
2. Application scenarios
Outdoor full-color display screen: SMD 1921 lamp beads are one of the commonly used components of outdoor full-color LED display screens. These displays are widely used in outdoor places such as commercial centers, shopping centers, media centers, commercial streets, leisure and cultural squares, entertainment squares, railway stations, airports, passenger stations, etc.
Stage rental screen: Due to its waterproof, high brightness and good stability, SMD 1921 lamp beads are also used in stage rental LED screens to ensure normal display in various complex environments.
3. Technical parameters
Brightness: The brightness of SMD 1921 lamp beads is relatively high, and the brightness of some products can even reach more than 7000cd/square meter, meeting the high brightness requirements of outdoor displays.
Waterproof level: Reach IP65 or above, and can work normally in outdoor harsh weather and environment.
Packaging method: SMD surface mount packaging is adopted for easy installation and maintenance.
Scanning mode: Generally 8 scans or higher scanning frequency to ensure the refresh rate and display effect of the display.
4. Advantages and disadvantages
Advantages:
* Strong waterproof and UV protection performance.
* High brightness and good stability.
* Suitable for a variety of outdoor and indoor display scenarios.
Disadvantages (if applicable):
* Compared with other higher-end LED lamp bead models, there may be some deficiencies in certain specific performances (but the specific deficiencies need to be determined based on the specific product and technical parameters).
In summary, SMD 1921 is a surface-mount lamp bead model widely used in the field of LED display screens, and is favored by the market for its high brightness, stability and waterproof performance.