Brightness-enhancing light guiding plate and liquid crystal display device using the same

摘要

Disclosed are a brightness-enhancing light guiding plate and an LCD using the same, in which a brightness enhancing recess portion for improving an optical distribution, changing a light path and enhancing brightness is formed at a surface by which light is reflected. The brightness enhancing recess portion has a reflection recess surface having a maximum surface area and a non-reflection recess surface having a minimum surface area, thereby improving the brightness, changing the light path and improving the optical distribution and thus improving a displaying performance.