The increase in LED technology has resulted in brighter and smaller LED electronic displays, making it a trend for more screens to enter rooms. However, this also means that the control and driving of the LED screen must meet higher requirements as the brightness and pixel density improve. Currently, the interior screen control methods use scanning mode or rank mode, with static and dynamic scanning modes available for LED electronic display screens. Dynamic scanning has two modes - dynamic real image and dynamic virtual - while static scanning is used for both real and virtual pixels.
The scanning method of an LED electronic display is determined by the ratio of the number of rows to the entire area. This ratio is also known as the scan rate and can be categorized into different driving methods such as 1/2, 1/4, 1/8 sweep, and 1/16 sweep. The type of driver used in the display will affect the setting of the receiving card. For example, if the receiving card was initially used on a 1/4 scan screen and is now utilized on a static screen, the display will light up randomly. However, adjusting the settings on the receiving card can help resolve this issue. To configure the receiving card, it must be connected to the fundamental devices such as transmission cards, display screens, and computers. Appropriate software can then be accessed on the computer to carry out the required settings. In summary, the scan mode and principles of an LED electronic display are crucial factors that need to be considered while setting up the display.
LED electronic display scanning method:
Dynamic scanning is a control method that utilizes a point-to-column approach in regulating the output of drive IC to the pixel dots. Unlike static scanning, dynamic scanning requires a specialized control circuit, but its cost is generally lower.
Static scanning is a method of controlling the flow of data from the output of driving IC to the pixels. Unlike dynamic scanning, static scanning does not require control circuits. This point-to-point control method has its advantages, including a smaller size and higher cost compared to dynamic scanning. If you need to control individual pixels, static scanning may be the way to go.
The working principle of an LED electronic display in 1/4 scan mode involves reducing the number of signal lines required for the display. By scanning only one-fourth of the display at a time, the required number of signal lines is reduced, resulting in lower power consumption and cost-effectiveness. This method is commonly used in large LED displays for outdoor advertising and other purposes. To ensure proper functioning, the display must be designed and wired with the correct voltages and frequencies, as well as the use of high-quality components to prevent signal interference and data loss.
To meet the control requirements, the power supply V1-V4 is opened for one-fourth in a single frame image. This technique proves useful in utilizing the display characteristics of LEDs and lowering hardware costs. However, it has a drawback, as each LED can only display for one-fourth of the time in a frame image. Creating a similar content by rearranging the original text while retaining the same information helps convey the message in a concise manner.
The type of classification depends on the LED electronic display scanning. To create similar content, the information from the original text must be retained but presented in a different way.
The indoor full-color LED electronic display scanning method includes constant flow 1/16 for P4 and P5, while P6 and P7.62 have a scanning rate of 1/8.
The outdoor full-color LED electronic display can be scanned by using various methods. For instance, P10 and P12 can be scanned through 1/2 or 1/4, while P16, P20, and P25 can be static. It is important to note that these scanning methods can produce different results and it is advisable to choose the appropriate method depending on the specific needs of the display.
One common technique used for single and two-color LED electronic displays is the scanning method. This typically involves a constant flow of 1/4, constant current 1/8 scan, or constant current 1/16 scan. These methods help to ensure that the display is efficient and accurately conveys the desired information.