[Analysis] China's LED lights grow bottlenecks and the use of recent developments

From the perspective of the status quo and trend of the development of LED lamp technology, China's LED high-level operation lamps will be further popularized, prices will steadily decline, LED lighting, turn signals and fog lamps will begin to commercialize, LED automotive lamps will become more natural and artistic. The purpose of the development of the standard, while the LED intelligent control system will also grow rapidly.

Domestic LED lamp growth bottleneck

Automotive lighting has grown from the original candlelight to the use of incandescent lamps. In recent years, new HID lights and LED lights have been presented. Since the Audi R8, the first model to add and remove LED headlights, international luxury car manufacturers such as Run, BMW, Toyota, and Ford have introduced new format cars with colorful LED lamps to attract customers, especially The use of LEDs by Japanese cars has become quite common. It is known as a car lamp that does not require replacement of light bulbs for the rest of the world. It is one of the most dazzling products in the world of automotive electronics.

Second, because of the small number of auto brands in China, and the need to focus on mid- and low-end vehicles, the demand for LED is very limited. The national brand vehicles that occupy the domestic market share of domestic cars have very strict requirements on the selection and certification of LED suppliers, and it is difficult for domestic LED companies to enter their supply chains. However, following the emergence of an easy-to-apply sedan with independent intellectual property rights, one or two or even more new models will be introduced each year. As a result, the automotive lighting has been updated more quickly. The selling point of the market and the localization purchase LED gradually increase with the intention of reducing the cost, which is a growing opportunity for domestic LED companies.

The advantages of LED lights have the following seven points:

1. Good monochromaticity and richness in color picking. The color saturation reaches 130% full color, making the light more clear and gentle. 2, long life, good earthquake resistance. The LED is a semiconductor device, which is different from an incandescent lamp. There are vulnerable moving parts such as glass and tungsten. The failure is extremely low and maintenance can be avoided. 3, light no delay, respond quickly. LED start-up time is only a few tens of nanoseconds, start time is significantly shorter than incandescent lamps, so that the driver left more time and effort to the driver. 4, high efficiency, low energy consumption. LED light source does not need to filter color can be directly born car lights need red, tiger color and other colors, no consumption, power usage rate of up to 80%. 5, small size and light weight. Using its characteristics, it can design thin, light, and compact all kinds of luminaires, providing space for car styling design. 6, green lighting. In the LED spectrum, the monochromaticity is good, there is an excess red, purple, and mid-spectrum spectrum, which does not reveal the amount of mercury harmful substances, and the amount of heat and radiation is very small. 7, a single LED luminous flux. At present, the luminous flux of a single LED can reach 120lm/W, and the product level is less than or equal to 60lm/W. In addition, high-power LEDs often need to add large-size collectors, so LED light sources generally adopt LED array design.

From the beginning, the cost of LED lights is too high. LED chips are difficult to produce and have a high threshold. The temperature, dryness, power supply, and dust removal requirements of the crystal growth process are very severe. In the early stage, huge investment was needed to build an industrial park-style workshop. At present, the tail end of LED chips is China, which is 47% of the LED market. While the LED factories in China are only sealing and tearing down the resin, the chip needs a lot of enthusiasm, which is the reason for the high cost. Really, the high cost of LED lights really is not the final issue, the amount of volume and bulk of the subject matter will naturally come down, but also to see the LED down to the incandescent price difference. No, we believe that the price of LED lights will not become a stagnation of its growth. LED lights will replace incandescent headlights just like the original incandescent lamp replaced by a candlelight.

The use of domestic LED lights

Domestic LED lamp development authority analysis? LED bulb classification, characteristics and classification of LED lights

LED light gallbladder classification again, domestic LED mainly middle and low LED products, it is difficult to reach the vehicle LED scale. Hella Automotive Lighting Research and Development Co., Ltd. Ministry of Arts and Engineers Kim Kui-man revealed that only the product is being broken on the patented technology, it is probably related to the use of LED market has a place on the market, it is difficult for domestic companies to purchase to the country Vehicle LED production line equipment, which is the end of the chip production equipment can not be purchased, the country set the trade barriers week thin. The first-generation car light source is directly extinguished by fuel (candle torches, kerosene, or acetylene), and it can humbly request the lights of the early stage, but it is in the process of receiving light with low efficiency, strong light intensity, and inflexible function. Operation complex and other implicit errors.