First, the growth of LED driver IC is worth looking forward to
LED driver IC, as its name implies, is a driver chip applied to LEDs. It is mainly used to control the current through LEDs to achieve the effect of LED illumination. Thanks to the continuous expansion of LED applications, the development of LED driver ICs Continuous improvement, the scale of the industry continues to expand, and growth is worth looking forward to.
The principle of LED illumination is to convert electrical energy into light, that is, to apply current to the compound semiconductor, and through the combination of electrons and holes, excess energy is released in the form of light to achieve the effect of luminescence. Since the brightness of the light is determined by the magnitude of the current, the stronger the current through the LED, the brighter the brightness. Therefore, the stability of the current will affect the quality of the LED light. Generally, the method of controlling the LED current will adopt a method of supplying a fixed voltage, and The way of resistance adjusts the current intensity through the LED, which is the lowest cost solution. The disadvantage of this is that the resistor not only increases the power consumption, but also reduces the power saving effect, increases the thermal energy, reduces the LED life, and at the same time, when the power supply When the voltage of the supply source changes, the amount of current passing through the LED cannot be adjusted in time, and thus the LED illumination may be unstable.
As the demand for controlling LED current has increased, the demand for LED driver ICs has emerged. It is estimated that LED driver ICs that provide accurate current will become the market with the growth of LED backlight applications and the continuous increase in the resolution of LED large billboards. Mainstream.
Second, the LED driver IC market revenue in 2015 reached nearly 3.5 billion US dollars
According to market research firm Strategies Unlimited, LED driver (IC driver) IC market revenue will be nearly 2 billion US dollars in 2010, reaching nearly 3.5 billion US dollars in 2015, during the compound annual growth rate (CAGR) ) is 12%. The agency also pointed out that LED driver ICs required for LED backlighting will be the main growth force in the market. Popular applications include edge-lit TVs and displays, and LED lighting is the next potential application.
However, Strategies Unlimited also pointed out that while the LED driver market is expanding, it may be accompanied by a decline in product prices. In addition, AC- LED products reduce the number of required driver ICs or even drive ICs, but they do not predict the period. This market revenue has had a significant impact and even helped accelerate the market penetration of LED lighting products. Strategies Unlimited estimates that the LED driver IC market for lighting will grow by 40% between 2010 and 2015; the challenges facing technology in this area include dimming technology, power saving performance, power factor and price.
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