Abstract: Disclosed are an organic material including a compound represented by the following Chemical Formula 1, and an organic light emitting device including the organic material. In Chemical Formula 1, A is an oxygen (O) atom or a sulfur (S) atom, M is a divalent or trivalent metal atom, R1 is an organic group, Y is a substituted or unsubstituted condensed polycyclic aromatic group, Z1 to Z4 are independently a carbon atom or a nitrogen atom, m is an integer ranging from 1 to 4, and n is 2 or 3.

Abstract: An ultraviolet-absorbing film comprising a fluorescent brightening agent and having a transmission of the rays of 410 nm or less of 90% or less, wherein the fluorescent brightening agent is represented by the following formula (I): wherein R1 and R4 each represents a hydrogen atom, an alkyl group or an alkoxyl group; R2 and R3 each represents an alkyl group; and [A] represents a substituted aryl or substituted ethenyl group.

Abstract: Daylight fluorescent articles are disclosed that utilize durable fluorescent pigment particles resulting from a fluorescent dye incorporated within a matrix polymer selected from polycarbonate, polyester and mixtures thereof and where the particles are of various desired shapes and sizes. Embodiments of such fluorescent pigment particles may also be retroreflective and are especially useful for pavement marking surfaces and retroreflective products for highway transportation safety.

Abstract: Preparation of a solid fluorescent composition comprising (1) mixing a host chromophore and an effective amount of a pigment precursor in a solvent, then generating a pigment as guest chromophore in-situ from the pigment precursor, and, subsequently, isolating the mixture of the host and guest chromophores, thereby forming a solid solution, or (2) mixing a polymer as a matrix or a polymer precursor and a pigment precursor in a solvent, if desired in the presence of a chromophore being a host component, then generating a pigment in-situ from the pigment precursor (being the guest component if a host component is present), and, subsequently, isolating the mixture of polymer and pigment, and—if present—the host component, thereby forming a solid solution, wherein in all cases where there is a host component, the absorption spectrum of the pigment (guest chromophore) overlaps with the fluorescence emission spectrum of the host chromophore.