To provide a light-emitting device which can radiate a narrow and long shape with good appearance by one light-emitting element, while making most of the characteristics of thin size of an LED and by which high outside radiant efficiency can be obtained, and a display for a vehicle mounting or the like using this type of light-emitting device.
The light radiated in nearly parallel from a reflecting type LED 8 of the light-emitting device 1 enters in nearly parallel from the incidence face 7 toward the upper face 5 of the light-guide body 2, thereby, all of it is reflected by either one of the reflecting faces 6a of approximately 45 degrees of the lower face (step-shape reflecting mirror) 6 and goes toward Z axis direction. When this is viewed from the upper face 5 direction, only the reflecting faces 6a that are positioned separated at a certain interval are illuminating essentially as shown in Fig. (a), but because of high luminance of the reflecting light, all the light looks connected continuously in x axis direction and the whole lower face 6 looks to be evenly illuminating. When this type of light-emitting element 1 that looks illuminating in rectangular shape is arranged at an interval in plural pieces, the interval between the light-emitting device 1 looks illuminating due to high luminance, and a display of novel design is obtained.
MISAWA AKIHIRO
YAMANAKA OSAMU
TAKAHASHI TOSHINORI
OTA HISATOSHI
Next Patent: ILLUMINATION DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE