מהם הסיווגים הנפוצים של מסכי LED בשוק?

1. הוא מחולק לפנים, חיצוני וחצי חיצוני בהתאם לסביבת השימוש
שטח המסך הפנימי בדרך כלל פחות מ 1 מטר מרובע ליותר מ 10 מ"ר, עם צפיפות נקודה גבוהה. הוא משמש בסביבה אור ישירה או בתאורה. מרחק הצפייה הוא מטרים ספורים משם, ולגוף המסך אין יכולת איטום ומים. The outdoor screen area generally ranges from a few square meters to tens or even hundreds of square meters. The point density is thin (בעיקר 1000-4000 נקודות למ"ר), and the luminous brightness is 3000-6000cd / square meter (different orientations and brightness requirements). It can be used under direct sunlight. The viewing distance is tens of meters away. The screen has good wind, rain and lightning protection capabilities. The semi outdoor screen is between outdoor and indoor, with high luminous brightness. It can be used outdoors without direct sunlight. גוף המסך אטום, usually under the eaves or in the window.
2. According to the color, it is divided into monochrome, double primary color and triple primary color (צבע מלא)
Monochrome refers to the luminous material with only one color on the display screen, בעיקר אדום בודד, and yellow green can also be used on some special occasions (such as funeral home). The dual primary color screen is generally composed of red and yellow green luminescent materials. The three primary color screen is divided into full color, which is composed of red, yellow green (אורך גל 570 ננומטר), blue and natural color, which is composed of red, ירוק טהור (אורך גל 525 ננומטר) וכחול.

3. It can be divided into synchronous and asynchronous according to the control or use mode
Synchronous mode means that the working mode of LED display screen is basically the same as that of computer monitor. It maps the computer image on the monitor point by point at the update rate of at least 30 fields / ס. It usually has the ability of multi gray color display, which can achieve the effect of multimedia publicity and advertising. Asynchronous mode means that the LED display screen has the ability of storage and automatic playback. The edited text and grayscale free pictures on the PC are transmitted to the LED display screen through the serial port or other network interfaces, and then played automatically offline by the LED display screen. בדרך כלל, there is no multi grayscale display ability. It is mainly used to display text information and can be networked on multiple screens.
4. Divided by pixel density or pixel diameter
As the LED dot matrix module used for indoor screen has relatively uniform specifications, it is usually divided according to the pixel diameter of the module, בעיקר כולל: ∮ 3.0mm 60000 פיקסלים / m2 ∮ 3.75mm 44000 פיקסלים / m2 ∮ 5.0mm. בהווה, there is no very unified standard for the pixel diameter and pixel spacing of outdoor screen. There are about 1024 ו 1600 pixels per m2, 2000 points, 2500 points, 4096 points and other specifications.