Abstract: The present invention relates to a coating composition having excellent wavelength conversion efficiency and a wavelength converting thin film/sheet prepared using the same. The coating composition of the present disclosure includes 1 to 60 wt % of polyorgano-silsesquioxane, 0.0001 to 30.0 wt % of a wavelength converting agent, and a solvent, and exhibits a transmittance of 70% or more as compared to that of an aqueous solution. A wavelength converting thin film/sheet prepared by using the coating composition has not only excellent photoluminescence, thermal resistance, and light-fastness, but also moisture and oxygen permeability is low, and the visible light transmittance thereof is 70% or more as compared to that of the air, and when patterning is added, the photoluminescence intensity of sheet is at least two-fold higher than that of a non-patterned sheet.
Type:
Grant
Filed:
February 4, 2015
Date of Patent:
February 14, 2017
Assignee:
KOREA INSTITUTE OF SCIENCE AND TECHONLOGY
Inventors:
So-Hye Cho, Seung Sang Hwang, Seung Yong Lee, Jong-Ku Park, Kyung-Youl Baek, Albert Sung Soo Lee