in the luxury car market to stimulate demand for LED lamps

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The car interior LED and exterior LED LED can be divided into two classes. The interior LED is mainly used in other aspects of digital instrumentation assembly LED backlit display, LED is similar to its technical performance indicators, and mobile phones and other consumer products, but t he angle of the led ceiling lights, color, brightness, threshold voltage, current optical, electrical The consistent performance and reliability requirements. Exterior LED is mainly used in the brake lights, front turn signals, after the turn lights, side turn lamps, rear fog lights and reversing lights. LED forward lighting headlamps in the development phase, Japanese Koito, Hella in Germany are the kind of lights on display, but has not yet reached the extent of the commercial mass production, mainly due to the brightness of a single LED component is not strong enough white LED headlamp still decay, the price is too high, and so on, it is estimated that the goods listed in the next five years will be.

Special design requirements

Automotive lamps to incandescent light for a long time for a reference to determine the standard of the optical, electrical and shape of the car lights, these s tandards almost impossible to change in the near future. LED light source to replace incandescent, LED automotive lighting the incandescent point source standards, the starting point of the LED light source is LED array, LED automotive lighting design is a new way of thinking. Its technology roadmap is the use of monochromatic LED light source, without the filter directly use different wavelengths of more efficient LED components designed to meet the requirements of automotive lighting red, yellow, white, three-dimensional array of lamps, which determines the LED car lighting design and special processing.

Three points: First, high efficiency, high power, high reliability (-40 ° C to 125 ° C) of the main requirements of the LED components; Second, electrical, optical parameters of stability, consistency, higher threshold voltage, as the number of components inconsistency is less than 0.1V, good monochrome and color difference of less than 5 nm; LED compone nts by 1000 hours (DC) light degradation of the intensity is less than 20%, another example, the LED wiring board assembly processing requirements there are led rope lighting three points: First, the wiring board is oddly shaped, three-dimensional array structure of the good thermal conductivity, electrical conductivity function; Second, high temperature resistance, impact resistance, vibration and current overload; three excellent constant current (or constant pressure) control circuit.