Patent ID: 9651826
Date: 2017-05-16
CPC Classifications: C09K,G02F,H05B

Claim:
1. A wavelength conversion member, which comprises a wavelength conversion layer, wherein the wavelength conversion layer comprises at least one quantum dot which has a property of being excited with exciting light to emit fluorescence, and at least one oxygen permeability coefficient-reducing agent, an oxygen permeability coefficient per 1 mm thickness of the wavelength conversion layer is less than 150.0 cm the oxygen permeability coefficient-reducing agent is a compound which exhibits an oxygen permeability coefficient-reducing capability of reducing the oxygen permeability coefficient per 1 mm thickness of the wavelength conversion layer by equal to or more than 30% per 10 parts by weight of the oxygen permeability coefficient-reducing agent relative to 100 parts by weight of the wavelength conversion layer except for the oxygen permeability coefficient-reducing agent, and wherein the wavelength conversion layer comprises the oxygen permeability coefficient-reducing agent in an amount of 1 to 50 parts by weight relative to 100 parts by weight of the wavelength conversion layer except for the oxygen permeability coefficient-reducing agent.