PRISM SHEET AND BACK LIGHT ASSEMBLY HAVING THE SAME

摘要

PURPOSE: A prism sheet and a back light assembly having the same are provided to uniformly maintain brightness according to a viewing angle without reducing the brightness by forming a complex pattern in which a triangle prism, a lenticula prism, and a curved surface triangle prism, are mixed. CONSTITUTION: A prism pattern mixes two or more prisms of different form on a base film. The prism pattern arranges a plurality of prisms. An optical source section(110) is composed of a lamp(111) and a mp reflector(112). A light guide plate(120) guides light delivered from the optical source section to an LCD panel(P). A reflective sheet(150) is arranged in the lower side of the light guide plate. The surface of the light guide plate is formed into an uneven shape or a dot shape in order to easily reflect and diffuse the light and transfer to a direction of the LCD panel.