Back to results
US 8,552,443 B2Granted
Light emitting device, light emitting device package and lighting system including the same
AssigneeLG Innotek Co., Ltd.
InventorsJeong Hyeon Choi, Jae Wook Kim, Jeung Mo Kang, Du Hyun Kim
Life of this patent
Estimating the term…
Abstract
Provided are a light emitting device, a light emitting device package and a lighting system comprising the same. The light emitting device comprises a light emitting structure comprising a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer, and an anti-reflection region on a lateral surface of the light emitting structure.
Claims12
A light emitting device comprising:
- a light emitting structure comprising a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer;
- and
- an anti-reflection region on the light emitting structure,
- wherein the anti-reflection region comprises an anti-reflection layer, and
- wherein the anti-reflection layer comprises at least two layers having refractive indexes different from each other,
- wherein the anti-reflection layer comprises:
- a first refractive layer having a first refractive index;
- a second refractive layer having a second refractive index greater than the first refractive index on the first refractive layer;
- and
- a third refractive layer having a third refractive index greater than the second refractive index, and the second refractive layer is disposed on the third refractive layer.
7 more elements
A light emitting device package comprising:
- a light emitting device including a light emitting structure and an anti-reflection region on the light emitting structure;
- and
- a package body in which the light emitting device is disposed,
- wherein the anti-reflection region comprises an anti-reflection layer,
- wherein the anti-reflection layer comprises two or more layers having refractive indexes different from each other, and wavelengths reflected from each boundary of the anti-reflection layer destructively interfere with each other,
- wherein the anti-reflection layer is on lateral surfaces of the light emitting structure, and
- wherein the anti-reflection layer comprises a roughness on lateral surfaces of the light emitting structure.
4 more elements
A lighting system comprising:
- a light emitting module comprising a light emitting device package including a light emitting device comprising an anti-reflection region on a light emitting structure;
- and
- a package body in which the light emitting device is disposed,
- wherein the anti-reflection region comprises an anti-reflection layer, and
- wherein the anti-reflection layer comprises at least two layers having refractive indexes different from each other,
- wherein the anti-reflection layer is on lateral surfaces of the light emitting structure, and
- wherein the anti-reflection layer comprises a roughness on lateral surfaces of the light emitting structure.
4 more elements
Dependencies are inferred from the claim text.