LED lights challenge traditional light bulbs to increase brightness and luminous efficiency is the center of gravity

LED market development and market base size have an absolute impact. In 2001, LED entered the mobile phone market, making the overall market show the first wave of high-speed growth, especially the high-brightness LED market achieved an annual growth rate of 46% between 2001 and 2004. However, after 2004, as the proportion of color screen mobile phones exceeded 80%, the speed of display backlights changed to white LEDs slowed down, and Taiwan’s Taiwanese and Korean manufacturers also introduced low-priced LEDs for keyboards, making LED prices significantly Sliding down. Under the influence of the lack of new markets and the sluggish growth of the old market base, the global LED market has entered a low growth trend after 2005.

At the beginning of 2008, global energy prices were soaring, and energy-saving advantages LED became a popular star industry, and new manufacturers have stepped into the LED industry. In-house manufacturers are optimistic about the penetration of LED in the lighting market and LCD backlight market, and continue to expand production. In the optimistic market, the third quarter of 2008 was affected by the global financial tsunami, and the market demand was frozen in an instant. In addition to the optimistic penetration rate of emerging markets such as lighting, Christmas lights, small-size display backlights and other existing markets Due to the decline in consumer purchasing power, there is a decline.

Due to the slowdown in demand, it is difficult to consume the capacity expanded at the beginning of the year, resulting in a huge downward change in the unit price of the product. The overall market sentiment has turned from prosperity to decline. Fortunately, the market growth in the first half of the year offset some of the negative impact of the market recession in the second half of the year. The market grew slightly by 3% from 2007, reaching $6.76 billion.

The product structure has not changed significantly, and high-brightness LEDs are still mainstream products. As for the analysis of individual product items, the global LED product portfolio has not changed much in 2008. High-brightness LED is still the main product type. However, due to the global financial tsunami, the consumer spending power is declining. The general brightness and invisible light (infrared light) LED market The market share has declined.

Quaternary compounds and GaN-based compounds are used as high-brightness LEDs, and their product characteristics such as brightness and luminous efficiency continue to increase, and their applications continue to expand. Especially in the large and large LCD backlight market, NB and LCD-TV began to introduce LED backlight modules to offset the impact of the financial turmoil on market demand, the market size still maintained 5% growth, the market share increased to 72 %.

In the past few years, the general brightness LED , due to its low unit price and high product reliability, still has considerable advantages in the field of high-brightness applications such as toys and decorative light strings, and the unit price is quite stable. Affected by the global financial tsunami, consumers' demand for such products decreased, and the unit price of products also showed a decline. The market for general brightness LEDs declined by 6% compared with 2007, and the market share fell by 1% from 2007, only 15%.

Affected by the decline of the mobile phone market and the introduction of laser diode complementary products in the optical mouse market, the invisible (infrared) LED market declined by 3% compared with 2007, and the market share fell to 13%.

The market share of portable products has stabilized. In terms of application market analysis, LED applications are quite extensive. For example, electronic products, home appliances, automobiles, traffic signals, billboards, etc. require point light sources or surface light sources, all of which are LED application markets . Early LEDs are mainly used in point light source applications such as home appliances, electronic products or toys due to low light-emitting brightness. Since 2000, with the increase in brightness and efficiency of high-brightness LED products, portable products (such as mobile phones, PDAs, digital cameras, etc.) The large-scale use as a product screen or button light source, coupled with the growth of the portable product market, makes portable products the largest application market for LEDs .