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Understanding LED screen inversion technology in 5 minutes

 - Understanding LED screen inversion technology in 5 minutes

LED flip chips: what are they?
What is the purpose of LED screen inversion technology?
How does LED screen inversion technology work?

Despite the fact that it has become an inevitable trend that LED screen inverted will replace formal dress frequently in the industry, at present, the market is still dominated by formal dress. It is unclear whether inverted packaging can really replace it, according to industry insiders.

LED flip chips: what are they?

Currently, LED chip structures are divided into three main groups: front, reverse, and vertical, with the front structure being the most common. In 2007, packaging companies applied flip packaging technology to lighting for the first time. ‘Flip chip’ refers to the traditional wire bonding method and the process after ball planting. As opposed to traditional chips connected to substrates through metal wire bonding, flip chips face downward, which is equivalent to turning the former over.

 - Understanding LED screen inversion technology in 5 minutes

What is the purpose of LED screen inversion technology?

LED display screens must be easy to transport, lightweight, thin, and easy to disassemble. By using existing technology, the unit box can be reduced in size. As a result of the external frame, power supply system, and led crystal integrated into the led display screen, the display screen has a grainy appearance, which affects the display effect.

In light of the shortcomings in the above technologies, the utility model provides a led flip screen, which flips and welds the led chip on the circuit board, reducing the cost of traditional lamp bead support, gold wire, and chip mounting, boosting production efficiency, and allowing for easy splicing and disassembling of the surface.

To achieve the above purpose, the utility model provides an inverted LED display screen. Display screens consist of a circuit board, a drive IC, and a LED chip. In order to construct the display screen, a multilayer structure is used. The drive IC, the circuit board, the led chip, and the glue are based on this. The PCB base plate is mounted with an inverted led chip welded to it. The drive IC is set on the pcb base plate and connected with the led chip.

How does LED screen inversion technology work?

  1. The active layer is closer to the substrate, shortens the heat flow path to the substrate, and has a lower thermal resistance;
  2. High light efficiency, suitable for large current drives;
  3. It is possible to extend the life of a product and reduce its maintenance costs by improving its reliability;
  4. Optics can be matched more easily, and the size can be smaller.

The flip LED full-color display has indeed solved many problems in terms of technology alone. Flip-chip non-gold wire packaging, for example, solves the problem of non-brightness and flicker caused by faulty soldering or poor gold wire contact; Flip chip welding improves the heat dissipation ability, improves the stability of the product under high current impact, and improves its life. It is faster and easier to install and use invertedly to avoid hidden dangers or quality problems during installation. In the near future, perhaps the flip chip market will become increasingly clear with the continuous development of flip chip technology.

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