Nexdot

Michele D'Amico

Yu-Pu Lin

Marc Pousthomis

Alexis Kuntzmann

Valérie Alezra

Edgar Cao

Robin Faideau

Wilfried Solo-Ojo

Benoît Dubertret

Guillaume Naudin

Akram Yahia Ammar

A display that includes an image producing system and a light filtering layer in the blue range, the light filtering layer having a limited impact on the gamut of the display. The image producing system has a gamut Gdefined in a color space The light filtering layer includes semi-conductive nanoparticles, and the absorbance through the light filtering layer is greater than 0.25 for each light wavelength ranging from 350 nm to λ, λbeing in the range from 420 nm to 450 nm. The gamut Gof the image producing system with the filtering layer has an area greater than 90% of the area of gamut Gin the color space.

Blue filter for display

A method for obtaining at least one particle, including: (a) preparing solution A including at least one precursor of at least one of Si, B, P, Ge, As, Al, Fe, Ti, Zr, Ni, Zn, Ca, Na, Ba, K, Mg, Pb, Ag, V, Te, Mn, Ir, Sc, Nb, Sn, Ce, Be, Ta, S, Se, N, F, and Cl; (b) preparing aqueous solution B; (c) forming droplets of solution A; (d) forming droplets of solution B; (e) mixing droplets; (f) dispersing mixed droplets in a gas flow; (g) heating dispersed droplets to obtain the at least one particle; (h) cooling the at least one particle; and (i) separating and collecting the at least one particle. The aqueous solution is acidic, neutral, or basic. In step (a) and/or step (b) at least one colloidal suspension of a plurality of nanoparticles is mixed with the solution. Also, a device for implementing the method.

Method for obtaining encapsulated nanoparticles

Disclosed is a composite particle including a plurality of nanoparticles encapsulated in an inorganic material, wherein the plurality of nanoparticles is uniformly dispersed in the inorganic material. Also disclosed is relates to a light emitting material, a support supporting at least one composite particle and/or a light emitting material and an optoelectronic device including at least one composite particle and/or a light emitting material.

Uniformly encapsulated nanoparticles and uses thereof

A composite particle including a core and a shell, wherein the core has at least one inorganic nanoparticle and the shell is made of vitrified glass, methods for obtaining thereof and uses thereof. The uses include a film having a host material and at least one composite particle and an optoelectronic devise including at least one composite particle or the film.

Glass composite particles and uses thereof

Disclosed is a color conversion layer including at least one light emitting material including at least one composite particle surrounded partially or totally by at least one surrounding medium; wherein the light emitting material is configured to emit light in response to an excitation and the at least one composite particle includes a plurality of nanoparticles encapsulated in an inorganic material; and wherein the inorganic material has a difference of refractive index compared to the at least one surrounding medium superior or equal to 0.02 at 450 nm. Also disclosed is a display apparatus.

Multicolor display apparatus

Color conversion layer and display apparatus having the same

Disclosed is a luminescent particle including a first material, wherein the luminescent particle includes at least one particle including a second material and at least one nanoparticle dispersed in the second material; wherein the first material and the second material have a bandgap superior or equal to 3 eV; and wherein the luminescent particle is a colloidal particle. Also disclosed is a light emitting material, a support and an optoelectronic device.

Luminescent particles comprising encapsulated nanoparticles and uses thereof

Disclosed is an ink including at least one particle including a first material; and at least one liquid vehicle; wherein the particle includes at least one particle including a second material and at least one nanoparticle dispersed in the second material; wherein the first material and the second material have an extinction coefficient less or equal to 15&#xd7;10at 460 nm. The invention also relates to inks, light emitting materials including at least one ink, patterns including at least one ink, particles deposited on a support, optoelectronic devices including at least one ink and method for depositing an ink on a support.

Ink comprising encapsulated nanoparticles, method for depositing the ink, and a pattern, particle and optoelectronic device comprising the ink

Disclosed is a color conversion layer including at least one light emitting material including at least one composite particle surrounded partially or totally by at least one surrounding medium; wherein the light emitting material is configured to emit light in response to an excitation and the at least one composite particle includes a plurality of nanoparticles encapsulated in an inorganic material; and wherein the inorganic material has a difference of refractive index compared to the at least one surrounding medium superior or equal to 0.02 at 450 nm. Also disclosed is an illumination source and a display apparatus.

Growing community of inventors

Romainville, France

Michele D'Amico