SURFACE LIGHT EMISSION DEVICE AND LIQUID CRYSTAL DISPLAY

摘要

To provide a surface emitting device and a liquid crystal display in which the number of divided main light-source images is increased to enhance the uniformity of luminance distribution. A surface emitting device 10 according to the invention includes: a diffusing sheet 14 constituting a light exiting surface; a reflector 13 disposed opposite to the diffusing sheet 14; light sources 12 disposed between the diffusing sheet 14 and the reflector 13; and a prism sheet (light-source-image division sheet) 16 disposed between the diffusing sheet 14 and the light sources 12. The prism sheet 16 has linear protrusions 16a on the front surface thereof; and a flat portion 16d parallel to the sheet surface between the adjacent linear protrusions 16a. This generates light-source images through the flat portions 16d in addition to the divided light-source images through the linear protrusions 16a to increase the number of light-source images, thereby improving luminance uniformity.