Corning Precision Materials Co., Ltd.

Samsung Corning Precision Materials Co., Ltd.

Joo Young Lee

Seo Hyun Kim

Eun Ho Choi

Gun Sang Yoon

Hyun Hee Lee

Kyoung Wook Park

Hong Yoon

Dong Hyun Kim

Il Hee Baek

June Hyong Park

Yoon Young Kwon

Hyunhee Lee

Young Zo Yoo

Jeong Woo Park

Min Seok Kim

Jeong Yeong Park

SooHo Park

Myong Woon Kim

Hyung Soo Shin

Seung Ho Yoo

Sang Jun Yim

Sang Do Lee

Sang Ick Lee

Kwang Je Woo

JongSe Park

The present invention relates to a light extraction substrate for an organic light emitting element and, more specifically, to a light extraction substrate for an organic light emitting element that can enhance the light extraction efficiency of the organic light emitting element by optimizing a stack structure that can maximize scattering efficiency, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element and an organic light emitting element comprising the same, the light extraction substrate comprising: a base substrate; a plurality of light scattering objects arranged on the base substrate; a matrix layer formed on the base substrate to cover the plurality of light scattering objects; and a planarization layer that is formed on the matrix layer and of which the surface makes contact with an organic light emitting element, wherein at least one of the cover matrix layer, the planarization layer, and the light scattering objects has a different index of refraction.

Light extraction substrate for organic light emitting element and organic light emitting element comprising same

The present invention relates to a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same and, more particularly, to a light extraction substrate for an organic light emitting element exhibiting a good light extraction efficiency, a method for manufacturing the same, and an organic light emitting element comprising the same. To this end, the present invention provides a light extraction substrate for an organic light emitting element, a method for manufacturing the same, and an organic light emitting element comprising the same, the light extraction substrate comprising a first light extraction layer having a plurality of pores formed therein and made of a first metal oxide doped with a dopant; and a second light extraction layer formed on the first light extraction layer and made of a second metal oxide which has a different atomic diffusion rate compared to the first metal oxide.

Light extraction substrate for organic light emitting element, method for manufacturing same, and organic light emitting element comprising same

The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, and more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, capable of significantly increasing light extraction efficiency of the organic light emitting diode. To this end, provided in the present invention is the method for manufacturing the light extraction substrate for the organic light emitting diode, comprising: a mixture-preparing step of preparing a mixture by mixing a sol-gel solution containing a first metal oxide, and a plurality of scattering particles composed of a second metal oxide having a refractive index different from that of the first metal oxide; a mixture coating step of coating the mixture on a base substrate; a mixture firing step of firing the mixture which has been coated to form, on the base substrate, a matrix layer comprising the first metal oxide and inside of which the scattering particles are dispersed; and a filling layer forming step of forming a filling layer by filling the surface of the matrix layer with a material having a refractive index different from that of the matrix layer, wherein the filling layer fills cracks formed on the matrix layer when firing the mixture, and wherein corrugation is formed on the surface of the filling layer by the scattering particles and the shape of the cracks which is transferred onto the surface of the filling layer.

Method for manufacturing light extraction substrate for organic light emitting diode, light extraction substrate for organic light emitting diode, and organic light emitting diode comprising same

The present invention provides a light extraction substrate for an organic light emitting device, comprising: a base substrate; a scattering layer formed on the base substrate and made of TiO; a plurality of first light scatterers formed inside the scattering layer and having a porous form; and a flat layer formed on the scattering layer, wherein the scattering layer is internally permeated by a part of the materials constituting the flat layer.

Light extraction substrate for organic light emitting device, and organic light emitting device comprising same

The present invention relates to a large area organic light emitting panel and, more particularly, to a large area organic light emitting panel which prevents an observer in front of the panel from recognizing a seam connecting organic light emitting panels, i.e. which can implement a seamless effect. To this end, the present invention provides a large area organic light emitting panel comprising: a plurality of organic light emitting panels arranged vertically and horizontally; and a seam part, formed between the plurality of organic light emitting panels, for connecting the plurality of organic light emitting panels and refracting, to the front, light laterally emitted from the organic light emitting panels by a wave guiding effect.

Large area organic light emitting panel

The present invention relates to an organic light emitting diode, and more specifically, to an organic light emitting diode capable of significantly increasing light extraction efficiency through optimization of a corrugated structure, which is formed by being transferred from an inner light extraction layer, thereby enabling excellent light-emitting efficiency. To this end, provided in the present invention is the organic light emitting diode comprising: a first substrate; the inner light emitting layer formed on the first substrate; a first electrode formed on the inner light emitting layer; an organic light emitting layer formed on the first electrode; and a second electrode formed on the organic light emitting layer, wherein corrugation is formed on the surface of the inner light emitting layer, wherein the corrugation is sequentially transferred onto the first electrode, the organic light emitting layer, and the second electrode, and wherein the surface of the second electrode comprises the corrugated structure, wherein the corrugated structure comprises a plurality of convex portions and a plurality of concave portions, which are formed between the convex portions that are adjacent, and wherein the depth/pitch ratio with respect to the pitch between the convex portions that are adjacent and the depth of the concave portions is 0.1 to 7.

Organic light emitting diode

The present invention relates to an organic light-emitting device for lighting, and more specifically relates to an organic light-emitting device for lighting whereby it is possible to achieve excellent brightness by increasing the light-emitting area per unit area of an organic light-emitting element. For this purpose, the present invention provides an organic light-emitting device comprising: a first substrate and a second substrate disposed facing each other; a frame section which is formed between the first substrate and the second substrate, and is formed on the periphery of the first substrate and the second substrate so as to hermetically close the space between the first substrate and the second substrate; and a flexible organic light-emitting element which is disposed inside of the space, and of which at least one part has a curved surface.

Organic light-emitting device for lighting

The present invention relates to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, and more specifically, to a method for manufacturing a light extraction substrate for an organic light emitting diode, a light extraction substrate for an organic light emitting diode, and an organic light emitting diode comprising same, the method capable of complicating or diversifying the path of a light that is emitted by forming cracks on a matrix layer that can induce scattering of the light emitted from the organic light emitting diode, thereby further improving light extraction efficiency of the organic light emitting diode. To this end, provided in the present invention is the method for manufacturing the light extraction substrate for the organic light emitting diode, comprising: a mixture-preparing step of preparing a mixture by mixing a sol-gel solution containing a first metal oxide, and a plurality of scattering particles composed of a second metal oxide having a refractive index different from that of the first metal oxide; a mixture coating step of coating the mixture on a base substrate; and a mixture firing step of firing the mixture which has been coated to form, on the base substrate, the matrix layer comprising the first metal oxide and inside of which the scattering particles are dispersed, wherein in the mixture firing step, cracks that can induce scattering of the light emitted from the light emitting diode are formed on the matrix layer due to the difference in the coefficient of thermal expression (CTE) of the base substrate and the first metal oxide.

Method for manufacturing light extraction substrate

The present invention relates to a method for manufacturing a light extraction substrate for an organic light-emitting element, a light extraction substrate for an organic light-emitting element and an organic light-emitting element comprising the same and, more specifically, to: a method for manufacturing a light extraction substrate for an organic light-emitting element, the method being capable of improving light extraction efficiency of the organic light-emitting element and also increasing luminance uniformity; a light extraction substrate for an organic light-emitting element; and an organic light-emitting element comprising the same. To this end, the present invention provides a method for manufacturing a light extraction substrate for an organic light-emitting element, comprising: a mixture preparation step of preparing a mixture by mixing a plurality of scattering particles with an inorganic binder; a mixture coating step of coating the mixture on a base substrate; a buffer layer formation step of forming a buffer layer by coating an inorganic material on the coated mixture; a calcination step of calcinating the mixture and the buffer layer; a first electrode formation step of forming a first electrode, which is made of a metal, in a crack formed in the mixture and the buffer layer in the calcination step; and a second electrode formation step of forming, on the first electrode, a second electrode electrically connected to the first electrode.

Method for manufacturing light extraction substrate for organic light-emitting element, light extraction substrate for organic light-emitting element, and organic light-emitting element comprising same

The present invention relates to a method for manufacturing an ultrathin organic light-emitting device and, more specifically, to a method for manufacturing an ultrathin organic light-emitting device capable of dramatically reducing the thickness thereof, in addition to improving light extraction efficiency. To this end, the present invention provides a method for manufacturing an ultrathin organic light-emitting device, comprising: a polymer material coating step for coating a polymer material onto a support; a frit coating step for coating a frit paste onto the polymer material; a heat treatment and separation step for conducting heat treatment at a temperature at which the polymer material breaks down, thereby separating the support and a frit substrate which has been formed by heat-treating the frit paste; and a device layer forming step for forming, in sequence, a device layer comprising a first electrode, a device layer comprising an organic light-emitting layer, and a device layer comprising a second electrode, on one side of the frit substrate which has been in contact with the polymer material.

Method for manufacturing ultrathin organic light-emitting device

The present invention relates to a light extraction substrate for an organic light emitting device, a fabrication method therefor and an organic light emitting device including the same and, more specifically, to a light extraction substrate for an organic light emitting device, a fabrication method therefor and an organic light emitting device including the same, wherein the light extraction substrate has aperiodic photonic crystal patterns formed on the front side thereof, through which light emitted from an organic light emitting element is emitted to the outside, thereby avoiding the dependency of light extraction on a specific wavelength band which occurs in existing periodic photonic crystal patterns, and inducing light extraction from a wider wavelength band. To this end, the present invention provides the light extraction substrate for the organic light emitting device, the fabrication method therefor and the organic light emitting device including the same, wherein the light extraction substrate, which is arranged on one surface through which the light emitted from the organic light emitting element is emitted to the outside, comprises: a base substrate; a matrix layer formed between the organic light emitting element and the base substrate; and the photonic crystal patterns formed on the base substrate, arranged inside the matrix layer and formed to have an aperiodic structure, wherein the matrix layer and the photonic crystal patterns form an internal light extraction layer of the organic light emitting device.

Light extraction substrate for organic light emitting device, fabrication method therefor and organic light emitting device including same

A zinc oxide (ZnO) precursor and a method of depositing a ZnO-based thin film using the same, with which a high-quality and high-purity ZnO-based thin film can be deposited. The ZnO precursor includes a mixture solvent containing at least two organic solvents which are mixed and a source material comprising diethyl zinc or dimethyl zinc which is diluted in the mixture solvent.

Zinc oxide precursor and method of depositing zinc oxide-based thin film using the same

A method of fabricating a light extraction substrate for an OLE) by which the flatness of the light extraction substrate for an OLED can be increased. Particles of a first metal oxide and a sol of a second metal oxide are inputted and mixed into an organic solvent. A base substrate is coated with a mixture of the first and second metal oxides and the organic solvent. A resultant coating film on the base substrate is heat-treated. The coating film is coated with the second metal oxide to form a metal oxide thin film on the base substrate. In the metal oxide thin film, the particles of the first metal oxide are impregnated in a matrix of the second metal oxide.

Method of fabricating light extraction substrate for OLED

A metal oxide thin film substrate for an organic light-emitting device (OLED) which exhibits superior light extraction efficiency and can be easily fabricated at low cost and a method of fabricating the same and a method of fabricating the same. The metal oxide thin film substrate for an OLED includes a base substrate and a metal oxide thin film formed on the base substrate, the metal oxide thin film being made of a mixture of at least two metal oxides having different refractive indices.

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Chungcheongnam-do, South Korea

Joo Young Lee