Abstract: A light radiation device and method for fabricating the display device using the same. The light radiation device includes a light source generating light and a light guide unit guiding the light, wherein the light guide unit includes a cover portion covering the light source, and a guide portion projecting from the cover portion and including flexible optical fiber.

Abstract: The present invention relates to a method of preparing a novel water-soluble and self-doped polyaniline graft copolymer, wherein aniline was grafted onto a poly(styrenesulfonic acid-c-aminostyrene) backbone. The graft copolymer is useful for advanced applications such as electrode manufacture, EMI shielding, static electricity dissipation, metal anti-corrosion, electrochromic materials, sensors, functional film and marine-fouling prevention.

Abstract: The present invention relates to novel water-soluble and self-doped polyaniline graft copolymer, wherein aniline was grafted onto the poly(styrenesulfonic acid-c-aminostyrene), preparation and its preparation. The water-soluble and self-doped conducting polyaniline graft copolymer of the present invention has the merit that water-soluble backbone moieties (sulfonic acid groups), which do not participate in self-doping, make the polymer soluble in water or polar organic solvent such as dimethyl sulfoxide (DMSO). The polymeric dopant (backbone poly(styrenesulfonic acid)) is so structurally stable in wide range of pH that macrophase separation by dopant migration can be prevented and doping/de-doping is reversible.