LIGHT GUIDE PLATE FOR BACK LIGHT

摘要

PURPOSE: A light guide plate for back light is provided to realize a uniform brightness characteristic by using a curve light reflecting structure and maximize the efficiency of reflection by using a straight light reflecting structure. CONSTITUTION: A plurality of light reflecting structures(22,24) are formed at a rear surface of a light guide plate(20) for reflecting light emitted from linear light sources(10) to a front. The light reflecting structures are formed in V-shaped grooves. One of the light reflecting structures is a straight light reflecting structure(24) formed in a y-axis direction horizontal to a surface which the light enters. The other is a curve light reflecting structure(22) radially formed on an x-axis toward a length center of the straight light reflecting structure.