Indoor full-color LED display LED lamp heating needs to improve the luminous efficiency of the LED

Indoor full-color LED display is currently facing the biggest problem is heat dissipation, LED display is the same. Indoor full-color LED display panel consumes a lot of power, and a considerable part of energy is wasted on heating. Fever can cause many problems. Why can led display screen be widely used, and how to solve the heat dissipation problem of full-color indoor LED display screen?

1. Extensibility: The bigger the full-color LED display in the room is, the higher the input of equipment in the production line is. And the size of the LED display is very easy to increase, just like building blocks. Resolution is also easy to achieve according to user needs.

2. Full color: The light bulb, neon lamp and so on are monochrome. LED realizes the combination of RGB three primary colors. How to solve the problem of heat dissipation of indoor full-color LED display?

3. High reliability: LED is solid illumination, high reliability, unlike neon lamps, bulbs and other need vacuum tubes.

4. Long life: The theoretical life of LED chip can reach 100,000 hours, and the actual life is more than 30,000 hours.

5. Environmentally friendly: LED display screen itself is energy-saving and pollution-free products.

Where does heat come from? From power supply to LED lamp, to LED driver, to adjustable resistance, the heating part includes LED lamp, LED driver and LED connection. We take 5V power supply as an example:

Power supply voltage: 5V.

LED: LED G/B Vfwd = 3.2V, LED R Vfwd = 2V

1. The luminous efficiency of LED is about 20%, and the heat of LED accounts for 50% of the total heat.

2. Controllers and connecting wires account for about 5% of total calorific value.

3. Driving Pressure Drop: 1.8V (G/B) or 3V (R) Pressure Drop, Driving Part of the total heating accounted for more than 45%.

Indoor full-color LED display LED lamp heating needs to improve the luminous efficiency of the LED, less heating of the controller and connection lines, little room for improvement. There is a lot of room for improvement in the driving part, which is also the part we expect to improve.