METHOD FOR MANUFACTURING A DIMMING APPARATUS

The invention aims to form a thin illuminating display part through a printing process, the display part switching between a plurality of displays. A low refractive index layer (12), a light scattering layer (14), a light shielding layer (15), and a color filter layer (17) are formed on the surface (11a) on a light incident side of a light guiding layer (11) by a printing process. When a first light sending part (2) is lighted, in a first display pattern (13), light is scattered in the light scattering layer (14) and becomes scattering light (L2), and the first display pattern is displayed through white illumination. Light of a second light sending part (17) passes through the color filter layer (17) and a second display pattern (16), and the second display pattern (16) is illuminated and displayed with color. 本发明的课题在于能够通过印刷工序将切换多个显示的照明显示部形成为薄型。在导光层(11)的光入射侧的表面(11a)上，低折射率层(12)、光散射层(14)、遮光层(15)、以及滤色层(17)通过印刷工序形成。当点亮第送光部(2)时，在第显示图案(13)中，光在光散射层(14)散射而成为散射光(L2)，第显示图案(13)以白色照明显示。第二送光部(17)的光透过滤色层(17)，并透过第二显示图案(16)，