Semiconductor light source with uniform light color

Abstract

The invention discloses a semiconductor light source with uniform light color. The semiconductor light source is characterized in that the semiconductor light source comprises an LED light-emitting unit, an LED substrate and chip resistors; the LED light-emitting unit comprises red light LED chips, green light LED chips and blue light LED chips, the chips with the same color are not adjacent, and any three adjacent chips can form a regular triangle; lED chip bonding pads, chip positive and negative electrode bonding pads and circuit wires are arranged on the LED substrate and used for bearing the LED chips and connecting the positive and negative electrodes of the chips respectively; the chips of the same kind are connected with one another and connected with a group of chip resistors in series; the three kinds of chips are in circuit connection in parallel. According to the light source, optical parameters of the various chips are controlled and adjusted through the different chip resistors, and any needed light color is achieved; and meanwhile, the three-color chips are uniformly and interactively distributed in a triangular shape, so that mixed light is more uniform and symmetrical than a conventional rectangular array, and the application requirements of higher requirements on the color and the quality of the light source are met.

Description

technical field [0001] The invention relates to a semiconductor light source with uniform light color, which belongs to the application field of semiconductor lighting. Background technique [0002] Due to the characteristics of high luminous efficiency, long life, energy saving and environmental protection, and green production, LED light sources meet the needs of the country in building an energy-saving country, and have been widely used in the field of lighting in recent years. With the satisfaction of basic lighting, people's demand for lighting has increased. In the future, more light colors and high-quality light sources will be needed to meet the growing lighting demand. And the diverse requirements for light source selection in different application scenarios. [0003] In addition to white light lighting, any color light source is also one of the directions that need to be improved. In the realization of arbitrary color light sources, some researches have used ultr...

AI Technical Summary

Problems solved by technology

However, the current ultraviolet light chip and phosphor are mixed excitation, and its light extraction efficiency is low, and the epoxy resin used for packaging is easy to decompose and age under ultraviolet light irradiation, thereby reducing the light transmittance

Or learn from the display technology and directly emit light from the three primary color chips, but the circuit is complicated and the control cost is high, so it is not suitable for the lighting industry

[0004] In addition, most of the existing surface light sources, whether monochrome or tri-color, use a rectangular array, and the distance between the light-emitting units is relatively large, and there will always be dark areas between the light-emitting units, resulting in uneven light-emitting surfaces. , so that there are problems such as glare, which cannot meet the requirements of the high-end lighting industry

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