One、Understanding Basic Concepts of LED Screens
The core of an LED screen is organic light-emitting diodes (OLED), which display images by emitting light of different colors. The common OLED technologies include:

• OLED Screen: Using traditional OLED technology, composed of single pixels.
• Micro OLED Screen: Smaller pixel size through further miniaturization of OLED technology.

Each type has its own advantages and disadvantages:

• OLED Screen has long lifespan and fast response speed;
• Micro OLED Screen offers finer details and higher contrast.
  It is necessary to decide which type based on specific application scenarios.

Two、Assessing Display Requirements
Before selecting an LED screen, it is essential to clearly understand your display requirements. Here are some key indicators:

• Display Function: Includes text display, image display, and dynamic images.

• Size Requirements: Specific width and height requirements for different applications.

• Contrast Ratio: Higher contrast enhances readability for text content.

• Response Time: Crucial for real-time displays like billboards and electronic fences.
  Three、Determine Display Purpose
  According to the purpose of LED screens, they can be divided into several types:

• Commercial Application: Brand information display, product promotion, dynamic advertisements.

• Traffic Application: LED broadcasting for指示标志, real-time information display。

• Building Application: Interior or outdoor decoration, enhancing space atmosphere.

• Family Entertainment: Wall TVs, Living room decoration, etc.。
  Each purpose requires different considerations:

• Commercial and traffic applications prioritize stability and durability;

• Family entertainment focuses more on aesthetics and color performance；

• Building application may require environmental adaptability.
  Four, Compare Technical Specifications
  When purchasing an LED screen, technical specifications are the core reference. Key indicators include:

• Color Temperature (CT): Affects the tone of display, with white light close to 2700K, warm tones around 3500-4500K.

• Peak Brightness: Determines overall brightness level.

• Response Time: Crucial for dynamic image displays, typically 1ms to 3ms.
  Different application scenarios have different requirements for these parameters. For example, commercial advertisements may require higher peak brightness and faster response time, while family entertainment focuses more on accurate color reproduction.

Five, Consider Application Environment
The environment in which the LED screen is used will affect its selection:

• Lighting Conditions: Strong light or complex lighting may negatively impact display performance.
• Temperature Control: Some applications may operate under high or low temperatures.
• Dust and Water Resistance: Outdoor applications require consideration of dust and water resistance grades.
  These factors directly influence the lifespan and stability of LED screens, so it is important to evaluate them before purchasing.

Six, Budget and Practical Recommendations
It’s important to budget wisely and not prioritize high-end products excessively. Choose price-appropriate products based on your needs:

• Basic model: Meets general display requirements;
• Mid-range model: Suitable for commercial advertising or dynamic displays;
• High-end model: Pursues detailed imagery and long lifespan.
  Moreover, it is advisable to check the After-sales service policy when purchasing an LED screen to ensure you can address any issues promptly.