Disclosed is an optical film or optical sheet which is used for a polarizing plate using iodine as a dye or a liquid crystal display device using the polarizing plate. The optical film or optical sheet is made from a resin containing a triazine compound represented by general formula (1). [In the formula, R1 represents a linear or branched alkyl group having 1-12 carbon atoms, a cycloalkyl group having 3-8 carbon atoms, an alkenyl group having 3-8 carbon atoms, an aryl group having 6-18 carbon atoms, an alkylaryl group having 7-18 carbon atoms, or an arylalkyl group having 7-18 carbon atoms; and R2 represents an alkyl group having 1-8 carbon atoms or an alkenyl group having 3-8 carbon atoms.]