Patent ID: 9708492
Date: 2017-07-18
CPC Classifications: C08K,C09D,F21V,F21Y,H01L

Claim:
1. An LED device comprising: a substrate; an LED element disposed on the substrate; and a reflective layer disposed at least around the LED element on the substrate, wherein the reflective layer contains a white pigment and a polysiloxane, the rate of decrease in reflectance of light with a wavelength of 500 nm of the reflective layer after storage of the reflective layer at 180° C. for 1,000 hours is 10% or less of the reflectance before storage at 180° C., and the reflective layer has no glass transition point in a range of from −70° C. to 150° C., wherein the amount of bifunctional silicon in the polysiloxane is 40% by mass or less with respect to the total amount of silicon in the polysiloxane.