| 摘要 |
In a shielded reflective LED, each of light sources can be surface-mounted substantially without being influenced by heat distortion based on the difference in thermal expansion coefficient between resin and metal because the light source is so small-sized that only one light-emitting element is sealed with a resin. Moreover, variations in luminous intensity and chromaticity of each of light-emitting elements used in three-color light sources can be examined in advance. Hence, well-matched three-color light sources can be mounted in combination so that display unevenness of a full color display can be reduced greatly. Further, the surface of the substrate portion on which the light source is fixed is silk-screen-printed in black. Hence, external light which enters the device through the optical opening portion when the device is turned off is reflected by the reflecting mirror and absorbed to the surface of the substrate portion. As a result, pseudo-lighting in which external light is radiated out again through the optical opening portion can be prevented thoroughly, so that contrast between light when the device is turned on and light when the device is turned off can be made high. <IMAGE> <IMAGE> |
