Light Conversion Resin Composition Light Conversion Sheet and Display Device

• Main Authors: AHN GIHWAN, KIM TAEYONG, BAEK SUNGHO
• Format: Patent
• Language: English; Korean
• Published: 26.06.2020
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; BLASTING; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; GENERAL PROCESSES OF COMPOUNDING; HEATING; LIGHTING; MECHANICAL ENGINEERING; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; ORGANIC MACROMOLECULAR COMPOUNDS; PHYSICS; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WEAPONS; WORKING-UP

The present invention is a light conversion resin composition for forming a light conversion sheet which converts light emitted by a light-emitting device into white light, and emits the same. More specifically, the present invention provides a light conversion resin composition in which the light conversion resin composition includes quantum dots, a curable resin, and a light scattering agent, and the light conversion sheet has a light reflectance of 15 to 50% at a wavelength of 450 nm. The light conversion resin composition according to the present invention exhibits excellent luminous efficiency to provide the light conversion sheet having excellent light output when applied to a light source, thereby being able to be effectively applied to manufacture the light source which implements white light. 본 발명은 발광 소자가 방출하는 광을 백색광으로 변환하여 방출하는 광변환 시트를 형성하기 위한 광변환 수지 조성물로서, 상기 광변환 수지 조성물은 양자점, 경화성 수지 및 광산란제를 포함하고, 상기 광변환 수지 조성물로부터 형성되는 광변환 시트는 450nm 파장에서 광반사율이 15 내지 50%인 광변환수지 조성물을 제공한다. 본 발명에 따른 광변환 수지 조성물은 탁월한 발광 효율을 나타내어 광원에 적용시 광출력이 우수한 광변환 시트를 제공할 수 있으므로 백색광을 구현하는 광원의 제조에 효과적으로 적용될 수 있다.