Wavelength conversion member, backlight unit including wavelength conversion member, liquid crystal display device, and method of manufacturing wavelength conversion member

A method of manufacturing a wavelength conversion member,

• the wavelength conversion member including a first substrate, a second substrate, and a wavelength conversion layer disposed between the first substrate and the second substrate and including quantum dots which are excited by excitation light to emit fluorescence, and
• the method comprising:
• preparing a polymerizable composition which includes the quantum dots and a polymerizable compound having a boiling point of 190° C. or lower and a molecular weight of 200 or lower;
• forming a coating film by applying the polymerizable composition including the quantum dots to a single surface of the first substrate;
• forming the wavelength conversion layer by irradiating the coating film with active energy rays to cure the coating film while maintaining a film surface temperature T of the coating film in a temperature range defined by 25° C.<T<(the boiling point of the polymerizable composition-5)° C.;
• and
• laminating the second substrate on the wavelength conversion layer.

A method of manufacturing a wavelength conversion member,

• the wavelength conversion member including a first substrate, a second substrate, and a wavelength conversion layer disposed between the first substrate and the second substrate and including quantum dots which are excited by excitation light to emit fluorescence, and
• the method comprising:
• preparing a polymerizable composition which includes at least the quantum dots and a polymerizable compound having a boiling point of 190° C. or lower and a molecular weight of 200 or lower;
• forming a coating film by applying the polymerizable composition including the quantum dots to a single surface of the first substrate;
• laminating the second substrate on the coating film such that the coating film is interposed between the first substrate and the second substrate;
• and
• forming the wavelength conversion layer by irradiating the coating film with active energy rays to cure the coating film while maintaining a film surface temperature T of the coating film in a temperature range defined by 25° C.<T<(the boiling point of the polymerizable composition+15°) C.