COB LED Tech Principle
COB?（chip-on-board LED technology）
Which is the latest full color LED technology product, based?of chip surface bonding tech combined with high precision dispersion.
The bare IC mounted directly onto the substrate on the back of the PCB. Then using special method of welding , make a bond?between the base and the silicon chip?to reach high brightness.
Common cathode flip-chip COB are the popular tech in market currently.?
Common cathode LED?, the voltage of red chip is required to be about 2.8V, and the voltage of blue and green chip is required to be about 3.8V. Accurate power supply and less power consumption.?The heat generated by LED display during?operation is relatively low.
Common anode LED, when the current remains unchanged, the higher voltage, the higher?power, and the greater the relative ratio of power consumption. At the same time, the LED display will also bring more heat during operation.
At last, one of COB Tech advantages I want to mention is its larger viewing angle. Lighting angle is between?-75°and 75°.
At present, the COB Tech has widely used in our company’s Star product—ACE BLOCK. NPP LED Wall(0.7mm, 0.9mm, 1.25mm, 1.56mm) is the core of our R&D team.?