Encapsulant material for optical component and light-emitting device
AssigneeSony Chemical & Information Device Corporation
InventorsKouki Hatsuda, Hiroshi Samukawa, Katsuhiko Komuro
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Abstract
A light-emitting device is provided which uses an encapsulant material made from a polymer having a high relative light output. The light-emitting device includes a light-emitting element and a member sealing the light-emitting element. The encapsulant material has one or more than two kinds of units given by the following formula (1) and a refractive index of 1.55 or more. where R is a hydrogen atom, alkyl group or phenyl group, Y is an alkyl group of which the carbon number is 1 to 6 or an alkyloxy group of which the carbon number is 1 to 6 and Z is an aromatic compound that meets predetermined requirements.
Claims9
A LED light-emitting device comprising:
- a light-emitting element;
- and
- an encapsulant material sealing the light-emitting element,
- wherein the encapsulant material having one or more kinds of units given by the following formula (1) and a refractive index of 1.55 to 1.65:
- where R is a hydrogen atom, alkyl group or phenyl group, Y is an alkyl group of which the carbon number is 1 to 6 or an alkyloxy group of which the carbon number is 1 to 6 and Z is one of functional groups given by the following formulas (2), (3), and (5) to (7) in which Z can be bonded to Y in all possible positions:
An optical component encapsulant material for an LED made from a polymer having one or more kinds of units given by the following formula (1) and a refractive index of 1.56, wherein the polymer is a polymethyl(alkyletherbiphenyl-pendant)siloxane:
- where R is a hydrogen atom, alkyl group or phenyl group, Y is an alkyl group of which the carbon number is 1 to 6 or an alkyloxy group of which the carbon number is 1 to 6, wherein the Z is the functional group given by the formula (2) in which Z can be bonded to Y in all possible positions:
Dependencies are inferred from the claim text.