OPTICAL LAMINATE AND MANUFACTURING METHOD FOR THE SAME AND SMART WINDOW COMPRISING THE SAME AND AUTOMOBILE OR WINDOWS FOR BUIDING USING THE SAME

• Main Authors: AHN GI HWAN, KIM SUNG SU, BAEK SUNG HO
• Format: Patent
• Language: English; Korean
• Published: 29.08.2024
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; 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; DIFFUSION TREATMENT OF METALLIC MATERIAL; DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; FIXED CONSTRUCTIONS; FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES,FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS,BLINDS, GATES; FREQUENCY-CHANGING; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LADDERS; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PERFORMING OPERATIONS; PHYSICS; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FORVEHICLES; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TRANSPORTING; VEHICLES IN GENERAL; WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILARDEVICES FOR VEHICLES

본 발명은 액정층; 상기 액정층의 일면 상에 형성된, 제1 투명 도전층; 상기 액정층의 타면 상에 형성된, 제2 투명 도전층; 상기 제1 투명 도전층 상에 형성된, 제1 흡수형 편광판; 상기 제2 투명 도전층 상에 형성된, 반사형 편광판; 상기 반사형 편광판 상에 형성된, 반파장 위상차층; 상기 반파장 위상차층 상에 형성된, 제2 흡수형 편광판을 포함하며, 상기 반사형 편광판의 투과축은, 상기 제1 흡수형 편광판 및 제2 흡수형 편광판의 투과축과 서로 수직인, 투과율 가변 광학 적층체 및 이의 제조방법과, 이를 포함하는 스마트 윈도우 및 이를 적용한 자동차 또는 건물용 창호에 관한 것이다. The present invention relates to an optical laminate with variable transmissivity and a manufacturing method therefor, a smart window comprising same, and an automobile or building window/door employing same, the optical laminate comprising: a liquid crystal layer; a first transparent conductive layer formed on one surface of the liquid crystal layer; a second transparent conductive layer formed on the other surface of the liquid crystal layer; a first absorptive polarizer formed on the first transparent conductive layer; a reflective polarizer formed on the second transparent conductive layer; a half-wave retardation layer formed on the reflective polarizer; and a second absorptive polarizer formed on the half-wave retardation layer, wherein the transmission axis of the reflective polarizer is perpendicular to the transmission axes of the first absorptive polarizer and the second absorptive polarizer.