Brief Introduction of LED PCB Technology

Posted on 2020-07-14

LED PCB technology has evolved into the innovation of many new products. A good example is the development of PCBs for LED lighting. The LED is soldered to the circuit board, and the chip generates light when it is electrically connected. The heat sink and ceramic base are used to connect the chip to absorb heat and cool the process.

LED PCB board tend to generate a lot of heat, which makes cooling by traditional methods very laborious. Therefore, the mental core LED circuit board is usually selected to improve the heat dissipation capacity of the LED. In particular, aluminum is commonly used to produce circuit boards for LED lamps. Aluminum PCBs usually include a thin layer of thermally conductive dielectric material, which can reposition and dissolve heat compared to non-yielding PCBs, and has excellent coherence.

PCB LED application

LED PCB lamps can be integrated into many lighting applications. Because they have excellent energy efficiency, low cost and maximum design flexibility, for example:

  • Traffic light.
  • Car headlights.
  • Military lighting.
  • Street tunnel lighting.
  • Airport runway.
  • Street lighting.
  • Photovoltaic (solar) lighting.
  • Flashlight and lantern.
  • The lights of the hospital operating room.
  • Factory lighting, etc.

Kingford provides efficient and cheap LED lighting solutions

As a solution of LED circuit board with more than 20 years of experience. We are able to provide LED circuit board production, sourcing and assembling components under the same roof. We are happy to work with you to develop customized aluminum/metal circuit boards for your specific application. We provide standard FR-4 circuit boards at reasonable prices. They are coated with thermal aluminum, which can effectively dissipate heat, cool all LED circuit components, and significantly improve product performance.

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What is an embedded LED PCB and how it works?

LED stands for Light Emitting Diode. They are semiconductor diodes and belong to the group of electroluminescent lamps. Light is generated by the recombination of charge carrier pairs in semiconductors and has a suitable energy band gap. Due to its low voltage, operating power, compact size, long life and stability, LEDs are used in industrial and consumer markets. One of its most attractive features is that it can produce light without generating a lot of heat, making it safe for daily use. Its function is the main reason why the LED is integrated into the PCB. LEDs are reliable and efficient enough for PCB applications. They play the role of light, especially in non-touch membrane switches. Integrated LED circuit boards are commonly used for polyester graphics and rubber keyboards.

User Interface

Circuit boards are commonly used in the lower circuits of membrane switches, especially because they provide it. The LED display window is displayed. These are usually easy to integrate into printed circuit board switch designs, but there are options when it comes to which type of LED to use.

Single point and blocking LED

They have the most functions and the best results. Please note that matte or textured surfaces are best for greater light diffusion. It is also important to remember that although LEDs cannot pass through the effective area of the switch, they can be graphically convinced that they are part of the switch.

Single point LED integrated or surface-mounted

The integrated or protruding single-point LED can be mounted on the lower ring of the lower layer. For these types of LEDs, different colors can be used, including bi-color LEDs. When the graphic layer is shaped to receive the LED, it is easy to terminate the termination from the same end of the connector. Please note that you do not need to keep the LED completion chart in a separate queue.

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Advantages of integrated LED PCB

As electronic components become thinner, it is advantageous to use LED membrane switches. Because it can make product delivery and final assembly easier. These integrated LED cards are best suited for low-light, consumer, equipment, medical equipment, light to medium-sized industries, and certain marine and aerospace applications. Regardless of the application, the advantages of integrated LED boards are many:

  • Lightweight and unobtrusive.
  • Low cost backlit membrane switch.
  • Resistant to dust and moisture.
  • Easy to integrate into complex interface games.
  • Low energy consumption.
  • There are many colors, sizes and strengths to choose from.
  • It can be used for flexible silver membrane switches and flexible copper membrane switches.

If LEDs are integrated into the circuit board, it is easier to use LED membrane switches in combination with keyboards, touch screens, and other types of membrane switches. Even when creating complex backlight switch assemblies, built-in or embedded LED PCB can provides greater design freedom. The small thickness of LED membrane switches reduces the total area of these complex switch interfaces. Designers and engineers often choose integrated LED PCBs when checking and updating products.

Generally speaking, LED PCB provides the most convenient backlight for membrane switches. Sometimes they are a better choice for backlighting small icons and symbols, because the uniform backlighting of larger icons and symbols with embedded LED PCB circuits is not so easy to implement.

For more information, please contact us.