Light Emitting Diode (LED)
What is a LED?
A LED application and use
1. What is a LED?
LED is short for Light Emitting Diode; each LED has a semiconductor inside, and a continuous voltage source activates the light produced by the reaction of the semiconductor, a process known as “electroluminescence”.
2. LED technology
LEDs can emit different light and colors, such as McDonald’s hamburger advertisements displayed on the LED display screen, crispy yellow bread, fresh green vegetables, and even the fragrant fumes of frying steak are endowed with rich colors, etc. Are you hungry? Are you sure don’t want one?
In the following chart are our common LED colors and semiconductors.
3. LED type
There are mainly 4 types of LED technology used for LED screens:
- LED DIP (Dual In-Line Package)
A high-resistance packaged LED emits only one color, usually a combination of red, yellow, and blue (RGB) three-color LEDs, which can display any color.
LED DIP is a good choice for led outdoor displays due to its excellent brightness and environmental wear resistance, but its disadvantage is reduced not only viewing angle but also high labor cost and long delivery time, making outdoor LED displays use DIP has fewer and fewer customers.
- SMD LED (Surface Mount Device)
SMD LED has a good viewing angle, and due to the fully automated production of the production machine, the delivery time is faster than DIP, the price is affordable, and it is more and more popular with customers.
- GOB (Glue on Board)
GOB is a new technology,by using patented transparent glue to cover the surface of the PCB board of the module, thousands of SMD lamps have been welded on it so that the surface of the LED module has obtained a special protective film.
GOB is a high-protection LED display, a small-pitch LED display, and a rental screen with natural needs for LED protection.
- COB (Chip on Board)
COB is to directly integrate and package all chips on a special PCB board without brackets and solder pins.
Compared with the traditional SMD method, the COB package omits the two major processes of making LED chips into lamp beads and reflow soldering.
4. A LED application and use
The technology of LED is currently widely used in many industries; it is mainly used for signals, indicators, signs and displays, and so on.
LED technology In the early 1960s, a young scientist working at General Electric developed the first LEDs, which were widely used in the lighting industry due to their advantages of good durability, long life, and low energy consumption.
With the advancement of LED technology, LED displays have also begun to appear, used in prosperous places where outdoor advertisements can be placed, such as shopping centers, transportation hubs, sports events, airports, etc.
Nowadays, we are pursuing a life of science and technology, and the sci-fi films we watch are slowly becoming a reality.
LED displays have formed 3D, 4D virtual, and real displays with VR, AI, and RX, such as simulated characters holding meetings in high-end simulation scenes.
When making a volcano adventure movie, you can build a virtual scene without spending a lot of time and expense shooting in a dangerous volcanic area; It is displayed in multiple dimensions; you can’t believe the pictures you see are fake.
The above is the explanation of LED technology.
We understand the principle of its light emission, the color, type, application, and LED development.
If you have any questions about the content of the LED display, you can leave a message below, and the Bibiled team will answer it for you.