Avantama Ag

Benjamin Hartmeier

Norman Albert Lüchinger

Marek Oszajca

Stefan Loher

Ines Weber

Christoph Josef Brabec

Tobias Stubhan

Yi Hou

Norman Lüchinger

Norman Albert LÜCHINGER

Norman Albert LÜJCHINGER

A display device includes a light emitter comprising a set of light emitter portions, wherein at least one light emitter portion of the set is configured to emit light with an excitation wavelength, and a color conversion layer including a set of conversion layer portions. At least one conversion layer portion of the set comprises a film comprising a solid polymer composition that includes luminescent crystals of perovskite structure, which are selected from compounds of formula (I): MMX(I), wherein Mrepresents Cs, Mrepresents Pb, and X independently represents anions selected from the group consisting of Cl, Br, I, cyanide, and thiocyanate. The luminescent crystals are of size between 3 nm and 3000 nm, and emit light of a wavelength in response to excitation by the light emitted by at least one corresponding light emitter portion of the set, wherein the excitation wavelength is shorter than the wavelength.

Display device

A luminescent component includes a first element comprising a first solid polymer composition, wherein the first solid polymer composition includes first luminescent crystals, wherein the first luminescent crystals are of the perovskite structure, and are selected from compounds of formula (I): MMX, wherein Mrepresents Cs, optionally doped with up to 30 mol % of one or more other metals having coordination number 12, Mrepresents Pb, optionally doped with up to 30 mol % of one or more other metals having coordination number 6, X independently represents anions selected from the group consisting of Cl, Br, I, cyanide, and thiocyanate. The first luminescent crystals are of size between 3 nm and 3000 nm, and emit light of a first wavelength in response to excitation by light with a wavelength shorter than the first wavelength. An encapsulation including a polymer or an inorganic matrix encloses the first element.

Luminescent component

A luminescent component comprises a first film comprising a first solid polymer composition and a second film comprising a second solid polymer composition. The first solid polymer composition comprises first luminescent crystals. The second solid polymer composition comprises second luminescent crystals. The first luminescent crystals are of size between 3 nm and 3000 nm, and emit red light in response to excitation by light with a shorter wavelength. The second luminescent crystals are of size between 3 nm and 3000 nm, and emit green light in response to excitation by light with a shorter wavelength. Said luminescent component is particularly suited for the application in LCD-backlight color conversion.

The present disclosure relates to the field of electronic devices, such as organic electronics, wherein said device comprises a substrate and a multitude of layers, wherein at least one of said layers is a buffer layer, wherein said buffer layer comprises metal oxide nanoparticles comprising physisorbed metal salts as described in the specification. The disclosure further provides for intermediate goods and materials suitable for manufacturing such electronic devices, to specific manufacturing methods and to specific uses.

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Zurich, Switzerland

Benjamin Hartmeier