The light guide plate and surface light equipment, from the illuminant panel and the Liquid Crystal Display for liquid crystal display and the production mannered null

摘要

PPROBLEM TO BE SOLVED: To provide a structure of a light guide plate and its manufacturing method capable of improving the luminance of emitted light. PSOLUTION: In the light guide plate 1, light is incident on an incident part from a light source; and the incident light is propagated internally and emitted from an emission surface. The emitted light illuminates a display screen. On the opposite surface to the emission surface, a plurality of minutely formed parts 10 are formed and dotted into concave shapes; and the diameter dimension defining the size of the minutely formed parts is smaller than an interval of pixels constituting a display screen. The light guide plate is manufactured by forming a synthetic resin material by fabricating a resist structure, having a top wall surface and sidewall surfaces inclined against the top wall surface, in an intermediate step of the manufacturing process. The resist structure is formed, by forming exposed parts and unexposed parts by irradiating a resist film on a substrate with X-rays or ultraviolet rays, and developing the exposed resist film. By controlling the energy intensity distribution of the X-rays or ultraviolet rays, the inclined surfaces are formed as boundaries of irradiated regions and non-irradiated regions. PCOPYRIGHT: (C)2009,JPO&INPIT