What are the functions and functions of LED driver ICs?

In the operation of the LED full-color display, the main function of the driver IC is to receive display data that conforms to a specific protocol (from information sources such as receiving cards or video processors), and internally generate time changes in PWM and current, output and brightness PWM current related to grayscale refresh to light up the LED. The driver IC, logic IC, and peripheral ICs such as MOS switches work together on the display function of the LED display to determine its display effect. Here are the driving and control methods of LED display.

The role and function of LED full-color display driver IC

General chips and special chips

General-purpose chips are not designed specifically for LEDs, but are some logic chips with LED display logic functions (such as serial 2-parallel shift registers). The dedicated chip is a dedicated LED display driver chip designed based on the light-emitting characteristics of the LED, providing a constant current source to ensure stable driving of the LED. Do you know the common sense about these 4 LED display chips?

Evolution of driver ICs

In the early applications of LED displays, constant voltage driver ICs were the mainstream. However, with the development of LED display technology, special chips have emerged to meet the demand for high-quality picture display on LED displays. In recent years, highly integrated LED constant current driver chips have gradually replaced traditional 8-channel drivers and improved performance. Take you to understand the technological evolution of LED screens.

Performance indicators of driver IC

Performance indicators include refresh rate, grayscale level and image expressiveness. In order to ensure the comfort of LED displays, low brightness and high gray have become the main criteria for considering the performance of driver ICs. To improve performance indicators, factors such as current consistency between channels, communication interface speed, and constant current response speed need to be considered.

Driver IC trends

Energy saving: Energy saving is the eternal pursuit of LED displays. The driver IC effectively reduces the constant current inflection point voltage and optimizes the algorithm to reduce the operating voltage and operating current, thereby improving LED utilization and reducing the power supply voltage to achieve energy saving.

Integration: The reduction of LED pixel pitch has led to a significant increase in the number of packaged devices that need to be mounted per unit area, increasing the difficulty of circuit design. To solve this problem, driver IC suppliers have launched a highly integrated 48-channel LED constant current driver IC that integrates peripheral circuits into the wafer, simplifying circuit design. Here is an introduction to the pixel density and resolution of LED displays.

In summary, LED driver IC plays a vital role in LED full-color displays, and its evolving performance indicators and trends will promote the continuous improvement of LED display technology.

Thank you for watching. I hope we can solve your problems. Sostron is a professional LED display manufacturer. We provide all kinds of displays, display leasing and display solutions around the world. If you want to know: How to install indoor and outdoor LED displays? Please click read.

Follow me! Take you to know more about led display knowledge.