Introduction to LED Display: What is a LED Display?

06 Jan / 2023

LEDs have a wide range of applications and are used in many industries. A LED display is a panel using arrays of LEDs as pixels. With the development of technology, a LED display is usually utilized in our daily life to produce light nowadays.





Table of contents





What is a LED Display?

LED Display is short for Light-Emitting Diode Display, using a panel of light-emitting diodes (LED) to generate light and display information. Since the LED display can emit bright lights, the signals or words shown on LED displays are visible both indoors and outdoors. Hence, LED displays are used everywhere. A LED display can be seen on digital numbers on elevators, traffic lights, shop signs, billboards outside, and so on.There are three types of LED Displays, including LED Digit Display, Dot Matrix Display, and SMD Display.


LED Digit Displays

LED Digit Displays are displays with LEDs enclosed in a component, and the LEDs can be lit individually to show alphabets and numbers. For instance, a 16 segment display can show both uppercase and lowercase English letters.


(Figure 1: Digit Display)


Related article:Introduction of 16 Segment Display


Dot Matrix Displays

Dot Matrix Displays are arrayed by different LED light sources in oblong shapes, and the light can be generated to show the numbers on clocks or operation status on machines.


(Figure 2: Dot Matrix Display)




SMD Displays

Last, SMD Displays are displays with LEDs mounted on the PCB by the manner of SMT. SMD LED displays are known for their lighter and thinner volume compared to traditional digital displays.


(Figure 3: SMD Display)


Related article:Introduction of SMD LED: What is SMD LED? 


How Does a LED Display Work?

A LED display is composed of a lot of closely-spaced LEDs. LED is a semiconductor device producing light. The illumination is emitted when the electrons carry the current passing through LED.

Red, green and blue LEDs are mounted in a fixed pattern on a LED display. When looking at the LED screen from a certain distance, the array of colored pixels are seen as an image or word. By adjusting the intensity and arrangement of the diodes, diverse colors of beams and images can be formed. Therefore,the information a LED display offers can be totally different by simply changing the brightness of each LED on the display.


What are the Colors that a LED Display can emit?

The most fundamental colors that a LED display can emit are the three primary colors: red, green and blue. All visible colors are the combination of lights of these three colors. By changing the colors and varying the brightness, various colors can be emitted. Take the color “white” for example. Once mixing all the primary colors, white lights can be produced.

Red, orange, yellow, and green are basic emitted colors of LED displays’ chips. According to different applications, the emitted colors are also available to be adjusted and customized.



What are the Features of a LED Display?

One of the important features of LEDs is that the performance is better than other light sources with no doubts. A LED display can illuminate with higher energy efficiency.

The other feature of a LED Display is that LEDs generally don't produce heat in the form of infrared (IR) radiation. When turning on the LEDs, a LED display emits almost zero heat. Because of not producing heat, a LED display is cool to touch when it is illuminated. Also, a LED display reduces the possible problem of cooling the electronic parts.

Besides, durability is also a feature of LED displays. The common standard for LED lifespan is about 100,000 hours or 10 years. Although weather and power might also influence the useful life, a LED display is still considered to be durable.


What are the Applications of a LED Display?

A LED display can display diverse information. In addition to showing visual images or graphs, a LED display is capable of generating general illumination, as when used for stage lighting or decorative purposes. Therefore, an LED display is widely used in many situations and uses, including showing promotion, advertising, and sports scores.

For example, LED displays may be often used in different industries, especially in commercial and retail companies, or in house and consumer electronics. Many electronics in our daily lives like digital clocks, timers, microwaves, and LED video walls are made by LED displays, making LED displays highly versatile electronic components.

On the other hand, LED displays are also widely used in roads. Destination signs on public transportation and variable-message signs on freeways all consist of LED displays to indicate direction.


What are the Advantages of Oasistek?

Taiwan Oasis Technology Co., Ltd. (Oasistek) has long been dedicated to the production and development of Light-Emitting Diodes (LED) and semiconductor components for more than 48 years. Oasistek provides products and services with a complete and scientific quality control system, and our mission is to satisfy our clients’ needs in every aspect.

It is necessary to choose the most appropriate product according to types, colors, sizes, brightness and digital symbols of the LED displays. Here are several advantages to choose Oasistek’s LED displays as first option:


  • Integration of Manufacturing: Oasistek has a complete vertical integration of upstream to downstream. Moreover, the R&D team of Oasistek integrates optics, circuits, controls, and mechanisms to improve and control manufacturing quality.
  • Customization: The customization like adjusting colors of beam and the surface of LED displays is available. Oasistek devotes our resources to fulfill different needs.
  • Electronic Professional Manufacturing Service: Oasistek offers OEM service to various LED displays with professional technology. We provide printing, assembly, testing and packaging of various electronic products with LED light sources.
  • Worldwide Certification: Oasistek incorporates safety systems in every step of our manufacturing process. Besides, we have global certification and experience to serve our clients in both domestic and international markets.


Oasistek has provided well-recognized LED displays and LED components to our clients. For more product information, please be sure to contact Oasistek and submit your questions. We will reply to your messages as soon as possible.