Standard for customers to choose high quality LED display screen

בשנים האחרונות, LED display screen is widely used in various fields such as indication, display, decoration, backlight, general lighting and urban night scene. It can be roughly divided into: indoor LED display, outdoor LED display, commercial LED advertising screen, led creative screen, stadium LED screen, LED floor tile screen, LED color screen, וכו.

different companies focus on different sales strategies. Some companies focus on price war, materials, performance, quality are often unsatisfactory, do not covet cheap, buy some substandard low-quality products, regret.

So how can consumers choose a product that they are satisfied with in the complicated environment of LED display industry? The following LED display factory will briefly summarize several points for you as your reference for screening: the most important component of

LED display screen is led device. The general selection criteria are: בהירות גבוהה, low operating voltage, צריכת חשמל נמוכה, large-scale, חיים ארוכים, impact resistance and stable performance. Failure rate
refers to the failure rate of LED display screen from the beginning of assembly to 72 hours aging, and the failure rate shall not be higher than 3 / 10000 (refers to the failure caused by LED device itself)

2 2 LED is a semiconductor device, which is sensitive to static electricity and easily leads to static failure. לָכֵן, antistatic ability is very important to the life of display screen. באופן כללי, the failure voltage of LED human body electrostatic mode test should not be lower than 2000V.

3. שְׁטִיחוּת
LED display surface flatness should be within 0, כדי להבטיח שתמונת התצוגה לא תהיה מעוותת. בליטה מקומית או קעורה תוביל לזווית מתה של מסך התצוגה.

4. בהירות וזווית ראייה
the brightness of indoor full-color LED display screen should be above 800 CD / m2, and outdoor full-color LED display screen should be above 1500? CD / m2, כדי להבטיח את התצוגה הרגילה של מסך תצוגת LED, otherwise, the brightness will be too low to see the displayed image. If the environment is very bright, please give priority to LED or rear projection. The brightness is mainly determined by the quality of LED tube core? The size of

visual angle directly determines the visible area space of LED display, אז כמה שיותר גדול יותר טוב. גודל זווית הראייה נקבע בעיקר על ידי שבב LED.

5. אפקט איזון לבן
white balance effect is one of the most important indicators of LED display. בכרומטיקה, כאשר היחס של אדום, green and blue is 1:4.6:0.16, הלבן הטהור יוצג. אם לפרופורציה בפועל יש סטייה קטנה, there will be a deviation of white balance. איכות האיזון הלבן נקבעת בעיקר על ידי שבבי LED, ולשבבי LED יש גם השפעה על יכולת הפחתת הצבע.

6. יכולת הפחתת צבע
color reducibility refers to the color restoration of LED display screen, זה, the color displayed on LED display screen should be highly consistent with the color of the playback source, כדי להבטיח את האותנטיות של התמונה.

7. Whether there are mosaics or dead spots?
mosaics refer to the small four squares which are always bright or black on the LED display screen, שזו התופעה של נמק מודול. The number of dead point is mainly determined by the quality of LED chip. א 6032 a 6032 8. With or without color block a 6032 color block refers to the lack of color in a small area; הסיבה העיקרית היא לשלוט ב-IC ובספק הכוח, control the quality of circuit layout.

9. The appearance of LED display screen
LED display screen appearance is the most intuitive, the most original to do the most preliminary evaluation of product quality. The appearance quality can reflect the production process and material quality of LED display screen manufacturer.