Light-emitting device and method for compensating chromaticity of light-emitting device

Abstract

An object of the present invention is to provide a light-emitting device having a temperature compensation function implemented with simple circuitry, and a method of temperature compensation in such a light-emitting device. More specifically, the invention provides a light-emitting device and a method of temperature compensation using a light-emitting device, wherein the light-emitting device includes a substrate, a first LED chip which is arranged on the substrate, and which has a characteristic such that Δx and Δy, each representing an amount of displacement on an xy chromaticity diagram, both are negative as temperature rises, and a second LED chip which is arranged on the substrate, and which has a characteristic such that Δx and Δy, each representing an amount of displacement on an xy chromaticity diagram, both are positive as temperature rises.

Dependencies are inferred from the claim text.