External Light Extraction Film with Wrinkle Structure

An objective of the present invention is to provide a film capable of improving light extraction efficiency by being attached to a surface of an OLED lighting substrate with a more streamlined, low-cost, and highly productive process. According to the objective of the present invention, the present...

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Bibliographische Detailangaben
Hauptverfasser:	HWANG, YONG OON, MO, GYEONG DEOK, PARK, JUNG WOO, KONG, TAE SIK, HWANG, WOO HYUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	An objective of the present invention is to provide a film capable of improving light extraction efficiency by being attached to a surface of an OLED lighting substrate with a more streamlined, low-cost, and highly productive process. According to the objective of the present invention, the present invention provides a light extraction film having a wrinkle structure formed on a microlens array film. The wrinkle structure is formed by applying a mixture solution of divinylbenzene (DVB) and a photo-curing agent for liquid to the microlens array film and irradiating ultraviolet rays while purging an inert gas or a nitrogen gas to cure the mixture solution. 본 발명의 목적은 OLED 조명 기판 겉면에 부착하여 광 추출 효율을 향상시킬 수 있는 필름을 제공하되, 좀 더 간소화되고 저비용 및 높은 생산성을 지니는 공정으로 상기 필름을 제공하고자 하는 것이다. 상기 목적에 따라 본 발명은 마이크로렌즈 어레이 필름 위에 주름구조를 형성한 광 추출용 필름을 제공하며, 상기 주름구조는 DVB(Divinylbenzene)와 액상용 광 경화제와 혼합하여 상기 마이크로렌즈 어레이 필름에 도포하고 자외선을 조사하여 경화시키면서 주름구조체를 형성한 광 추출용 필름을 제공하였다.