OPTICAL LAMINATE AND IMAGE DISPLAYING UNIT PREPARING THE SAME

The present invention relates to an optical laminate, and more specifically, to an optical laminate which includes two base materials having tensile modulus of 2,000 to 7,500 MPa, and an adhesive layer located between the base materials, of which storage modulus at 25°C is less than or equal to 100...

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Bibliographic Details
Main Authors SONG, IN KYU, SUNG, JUN HEE, SONG, BYUNG HOON, LIM, MIN HO, KIM, HEE BONG
Format Patent
LanguageEnglish
Korean
Published 22.12.2015
Subjects
ELECTRICITY
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Summary:The present invention relates to an optical laminate, and more specifically, to an optical laminate which includes two base materials having tensile modulus of 2,000 to 7,500 MPa, and an adhesive layer located between the base materials, of which storage modulus at 25°C is less than or equal to 100 kPa and storage modulus at -20°C is three times less than the storage modulus at 25°C, thereby having excellent flexibility even in various temperature ranges to minimize the occurrence of a crack when the optical laminate is bent, and to an image displaying device including the same. 본 발명은 광학적층체에 관한 것으로, 보다 상세하게는 인장탄성률 2,000MPa 내지 7,500MPa인 2개의 기재 및 상기 기재 사이에 위치한 25℃ 저장탄성률이 100kPa 이하이고, -20℃ 저장탄성률이 25℃ 저장탄성률의 3배 이하인 점착층을 포함함으로써, 다양한 온도 범위에 대해서도 우수한 유연성을 가져, 굴곡시의 크랙 발생을 최소화 할 수 있는 광학적층체 및 이를 포함하는 화상표시장치에 관한 것이다.
Bibliography:Application Number: KR20150158981