| 摘要 |
PURPOSE: To make a display case thin and a display device light in weight without using an acryl-made light guiding plate in a back light device of a liquid crystal display device. CONSTITUTION: Emitted light from a light source 13 is reflected toward one side by a lamp sheet 14 fitted around the light source 13 arranged on the other side so as to guide to the back face side of an LCD module 20. The light emitted from the light source 13 and the light reflected by the lamp sheet 14 are reflected irregularly by a blast-processed wavy face 17 formed on the inner face of the back face case 12 of a display case 10 and the wavy reflective face 19 of a silver-deposition-processed reflective film 16 so as to guide toward the back face side of the LCD module 20. The light reflected irregularly by the wavy reflective face 19 on the inner face of the back face case 12 is scattered by a scattering sheet 21 arranged on the back face side of the LCD module 20 so as to radiate toward the back face side of the LCD module 20. |
