US 8,541,941 B2 · Light emitting element

Abstract

A light emitting element includes a resonator structure which has a first reflecting member, a second reflecting member, and a light emission layer placed between the first reflecting member and the second reflecting member, and part of light resonated between the first reflecting member and the second reflecting member is transmitted through the first reflecting member or the second reflecting member in the resonator structure. A wavelength at which a resonator output spectrum from the resonator structure has a maximum value is located between a wavelength at which an inner light emission spectrum of the light emission layer has a maximum value and a wavelength at which relative luminous efficiency has a maximum value.

Claims10

Dependent claims

A light emitting element comprising a resonator structure which has a first reflecting member, a second reflecting member, and a light emission layer placed between the first reflecting member and the second reflecting member, part of light resonated between the first reflecting member and the second reflecting member being transmitted through the first reflecting member or the second reflecting member in the resonator structure,

wherein a wavelength at which a resonator output spectrum from the resonator structure has a maximum value is located within a wavelength corresponding to a range of 90% to 50% of a highest value of a light emission intensity of an inner light emission spectrum of the light emission layer, and
a wavelength at which the inner light emission spectrum has a maximum value lies within a range of 450 nm to 480 nm.

Dependencies are inferred from the claim text.

Facts

Application

13/667,503Filed 2 Nov 2012 · division

Published

US 2013/0168715 A14 Jul 2013

Granted

24 Sep 2013

Term ends

Not estimatedThe source records don’t support an estimate.

Classification7 codes

H05B 33/24
Characterised by the chemical or physical composition or the arrangement of auxiliary dielectric or reflective layers: of metallic reflective layers
H10H 20/856
Optical field-shaping means, e.g. lenses: reflecting means
H10K 59/876
Arrangements for extracting light from the devices: comprising a resonant cavity structure, e.g. Bragg reflector pair
H10K 59/878
Arrangements for extracting light from the devices: comprising reflective means

Family

PCT/JP2009/002645Parent of this division · filed 11 Jun 2009

US 2013/0168715 A1Pre-grant publication · published 4 Jul 2013

Application13/322,776Parent of this division

US 8,339,033 B2Parent of this division

US 2012/0092872 A1Published application

US 8,541,941 B2This patent

From the US filing history. Foreign family members aren’t listed.

Light emitting element

Life of this patent

Light emitting element

Life of this patent

Abstract

Claims10