Light guide plate illumination device including same and method of manufacturing light guide plate

According to example embodiments, an illumination device is provided that has a light guide plate including one or more edges and including a transparent substrate and a light extraction film disposed on the transparent substrate. The light extraction film includes: a matrix layer; and a plurality o...

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Bibliographic Details
Main Authors YOON HONG, YOON GUN SANG
Format Patent
LanguageEnglish
Korean
Published 02.06.2023
Subjects
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PHYSICS
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Summary:According to example embodiments, an illumination device is provided that has a light guide plate including one or more edges and including a transparent substrate and a light extraction film disposed on the transparent substrate. The light extraction film includes: a matrix layer; and a plurality of scattering particles embedded within the matrix layer. The light guide plate includes first regions where the bulk density of the plurality of scattering particles of the light extraction film is substantially constant and second regions where the bulk density of the plurality of scattering particles of the light extraction film varies along a Gaussian profile. Therefore, it is possible to provide a light guide plate with improved optical properties. 예시적인 실시예들에 따르면, 하나 이상의 가장자리들을 포함하고 투명 기판 및 상기 투명 기판 상에 배치되는 광 추출 필름을 포함하는 도광판을 갖는 조명 장치가 제공된다. 상기 광 추출 필름은, 매트릭스 층; 및 상기 매트릭스 층 내에 임베디드된 복수의 산란 입자들을 포함하되, 상기 도광판은 상기 광 추출 필름의 상기 복수의 산란 입자들의 부피 밀도가 실질적으로 일정한 제1 영역들 및 상기 광 추출 필름의 상기 복수의 산란 입자들의 부피 밀도가 가우시안 프로파일을 따라 변하는 제2 영역들을 포함한다.
Bibliography:Application Number: KR20210164709