how to led displays work


LED displays are one of the most popular types of display in the world today. They are used in various fields, such as commercial, industrial, and residential applications. They are very efficient and have low energy consumption as compared to other display types. In this article, we will take a closer look at how LED displays work.

What Are LED Displays?

LED stands for Light Emitting Diode; these are small devices that emit light when an applied voltage is present. A high frequency of light produces bright colors, and different color combinations can be programmed into the LED. LED displays are screens made up of these small devices connected together.

How Do LED Displays Work?

LED displays work by emitting light when an electrical current passes through them. The current arrives via a circuit board (driver circuit), which determines the sequence and timing of the LEDs that light up. The driver circuit controls how the display lamps in a variety of ways, like flashing, dimming, or pulsing.

The basic idea behind LED displays is to create an image by using pixels (picture elements that display an individual point) and lighting them up at specific times and in specific patterns. One pixel is formed by arranging three RGB diodes (Red, Green, and Blue LED).

The LED chip emits light of a specific color when a certain amount of energy is introduced. An LED display comprises thousands of these chips arranged in different arrangements to make up different shapes, messages, symbols, images, and videos.

What Are The Different Types of LED Displays?

1. Surface-Mounted Display (SMD)

Surface-mounted displays (SMDs) are the most common types of LED displays on the market. The SMDs are mounted in a matrix, and they create a brighter, more extended, and sharper display. They are also easy and quick to install and maintain.

2. Dual in-line package (DIP)

In comparison to SMDs, DIPs are more substantial, and they have a much lower brightness. They are characterized by an obstruction in the display, and certain images require a higher voltage to be displayed well.

3. Organic Light Emitting diodes (OLEDs)

Organic Light Emitting diodes (OLEDs) are a new type of LED display. They are unique in that they are incredibly flexible and lightweight, making them ideal for portable devices. OLEDs consume less power than conventional displays and produce a bright, rich color display.

4. Inorganic LEDs (I-Leds)

Inorganic LEDs (I-Leds) are similar to OLED displays, but they are more durable and long-lasting. They exhibit a higher level of brightness and are more energy-efficient than OLEDs. Unlike OLEDs, their display doesn't degrade over time, making them a suitable choice for outdoor or industrial displays.

5. MicroLED

MicroLEDs are a newer type of LED displays. They are made of tiny LEDs measuring 50 to 100 microns in size. These small LEDs emit extremely bright light, and by placing them together, you can achieve a high resolution on a screen. MicroLEDs are still in the early stages of development and have yet to hit the consumer market.


LED displays are the go-to option for displaying information in a more noticeable, practical, and cost-efficient way. They emit less heat, are less fragile, and offer higher brightness and resolution, making them a better alternative to traditional display types. By providing a better understanding of how LED displays work, you will be better equipped to choose which type of LED display is right for your needs.


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