Lg Electronics Inc.

Moongoo Choi

Jinwoo Sung

Hyunkwon Shin

Sangcheon Kim

Seongman Jeon

Jinmok Oh

Hyunho Lee

Ilhwan Kim

Chilkeun Park

Mangeun Kim

Byoungkwon Cho

Dongseon Jang

Joodo Park

Hyouk Chon Kwon

Koun Park

Juchul Lee

A hybrid organic/inorganic quantum dot composite with high reliability is disclosed. The hybrid organic/inorganic quantum dot composite includes quantum dot, polymer resin, and silica, in which the silica is formed in the polymer resin, one end of the polymer resin forms a chemical bond with the quantum dot, and another end of the polymer resin includes a functional group capable of forming an additional chemical bond. The hybrid organic/inorganic quantum dot composite is resistant to moisture and oxygen permeation, and thus, it is not degraded easily by bonding oxygen and moisture to quantum dots even if moisture and oxygen permeate into the composite. The quantum dot composite may be used as a secondary raw material capable of being processed into another form while maintaining physical properties of quantum dots as a primary raw material.

Hybrid organic/inorganic quantum dot composite and method for preparing the same

A quantum dot-polymer complex and a method for preparing the same. The quantum dot-polymer complex includes a first phase formed of a matrix resin, a globular second phase dispersed in the first phase, the second phase including a quantum dot therein, and a third phase disposed along a surface of the second phase between the first and second phases.

Method for preparing quantum dot-polymer complex, quantum dot-polymer complex, light conversion film, backlight unit and display device having the same

A light emitting device package assembly including a first substrate, a plurality of light emitting device packages disposed on the first substrate, and a light conversion member disposed on the light emitting device packages. Each of the light emitting device packages includes a main body disposed on the first substrate and including a first cavity, a light source disposed in the first cavity, and a first matrix disposed in the first cavity. Further, the light conversion member includes a second substrate including a plurality of second cavities, a second matrix disposed in the second cavities, and first light conversion particles disposed in the second matrix.

Light emitting device package assembly and method of fabricating the same

A backlight unit including a light source formed to provide primary light; a quantum dot phosphor excited by the primary light provided from the light source to emit secondary light having a wavelength different from a wavelength of the primary light and disposed to be spaced apart from the light source; an optical agent absorbing light having a specific wavelength from the primary light provided by the light source and the secondary light emitted from the quantum dot phosphor; and a matrix configured to support the quantum dot phosphor and the optical agent. Further, the quantum dot phosphor and the optical agent are randomly mixed in the matrix; and the quantum dot phosphor, the optical agent, and the matrix form a composite.

Backlight unit and display device comprising same

A light conversion member having excellent reliability and white balance characteristics, and a backlight unit and a display device including the same are provided. The light conversion member according to the present disclosure includes at least one light conversion layer including quantum dots and at least one band-pass filter which reduces transmittance of light having a wavelength band of 480 nm or more.

Light conversion member, and backlight unit and display device including the same

A display device includes at least one light-emitting element configured to emit blue light, a red conversion layer disposed on an upper or lower portion of the at least one light-emitting element and including a red light-emitting quantum dot, a green conversion layer disposed on the upper or lower portion of the at least one light-emitting element and including a green light-emitting phosphor, and a substrate comprising thin film transistors electrically connected to the light-emitting element.

Display device

Provided is a quantum dot composite film. The quantum dot composite film includes a first barrier film, a quantum dot phosphor film disposed on the first barrier film, and a second barrier film disposed on the quantum dot phosphor film, wherein the first barrier film or the second barrier film is a dichroic mirror barrier film. Therefore, since the quantum dot composite film bonded to various optical functional films is provided, the number of optical films requires for a typical thin-film-type lighting apparatus may be effectively reduced.

Quantum dot composite film and backlight unit using same

A light conversion film including a first barrier film, a light conversion layer disposed on the first barrier film, the light conversion layer including a matrix resin and red quantum dots that are dispersed into the matrix resin, and a second barrier film disposed on the light conversion layer. The light conversion film satisfies following Equation (1): 5&#x2266;(weight of quantum dot within light conversion layer/total weight of light conversion layer)&#xd7;100&#xd7;t&#x2266;50, where, t is a thickness of the light conversion layer.

Light conversion film, and backlight unit and display device having the same

The present invention relates to a light emitting device package and a lighting device with the same. The light emitting device package comprises a package body having a first surface and a second surface, wherein the first surface has a mounting portion positioned thereon, and a through hole provided therein to pass through the first surface and the second surface, at least one pair of first electrodes on the first surface, at least one pair of second electrodes on the second surface connected to the first electrodes through the through hole respectively, a light emitting device on the mounting portion connected to the first electrodes electrically, a light wavelength conversion layer positioned on the light emitting device, and a protective layer on the light wavelength conversion layer for sealing the mounting portion.

Light emitting device package and lighting device with the same

A display apparatus is provided and includes a display panel, and a backlight unit supplying light from a rear of the display panel. The backlight unit includes a light source, a circuit board layer, a reflection layer, a pattern layer, and a vacant layer. The circuit board layer has the light source seated thereon. The reflection layer is formed on the circuit board layer to reflect light emitted from the light source. The pattern layer is positioned on a top surface of the light source. The vacant layer is formed between the reflection layer and the pattern layer.

Display apparatus

A light generating device which may be used as a backlight unit and a display device including the light generating device are discussed. According to an embodiment, the light generating device can include a base layer; light source devices disposed on the base layer and configured to emit light, the light source devices being spaced apart from each other, at least one of the light source devices including a light emitting diode for generating the light; and a light shielding layer covering the light source devices and configured to control an amount of the light being transmitted through the light shielding layer, wherein the light shielding layer includes slits disposed spaced apart from each other.

Backlight unit and display device

A light generating device which may be used as a backlight unit and a display device including the light generating device are discussed. According to an embodiment, the light generating device can include a first layer; a plurality of light source devices disposed on the first layer and configured to emit light, each at least one of the light source devices including a light emitting unit diode for generating the light; a second layer covering the light source devices; and first and second light shielding layers disposed on the second layer and configure to selectively control transmit a propagation of the light emitted from the light source devices, the first and second light shielding layers being composed of a same material or different materials, the first and second light shielding layers being disposed to correspond with the light source devices.

Growing community of inventors

Seoul, South Korea

Moongoo Choi