Source: {"pile_set_name": "USPTO Backgrounds"}

In recent years, LEDs (light emitting diodes) having excellent characteristics that a power consumption is low, and a lifetime is long have been used as light sources of various lighting devices extensively. Because fundamental lights emitted by the LED elements are limited to three lights of red, green, and blue as of now, in order to obtain a suitable while light as a general lighting intended purpose, there are used a method of obtaining the while light by additively mixing the above-mentioned three fundamental lights together, and a method of obtaining an artificial white light by combination of a blue LED with the phosphor that emits a yellow fluorescence having a complementary relationship with the blue. In recent years, the latter method has been used extensively, and the lighting device using the LED package combining the blue LED with a YAG phosphor is used for backlight of a liquid crystal panel (for example, refer to Patent Literature 1).
In the patent literature example, the LED package is configured in such a manner that after the LED elements have been mounted on a bottom surface of a recessed mounting portion having a reflection surface formed on a side wall, a silicone resin or an epoxy resin having YAG phosphor grains dispersed therein is poured into the mounting portion where the YAG phosphor grains are dispersed within the mounting portion to form a resin packaged portion. Also, the patent literature discloses an example in which for the purpose of achieving an even height of the resin packaged portion within the mounting portion into which the resin has been poured, an excess resin storage portion into which a poured excess resin of a defined amount or more is discharged from the mounting portion and stored is formed. With this configuration, even if the amount of discharge from a dispenser is dispersed at the time of pouring the resin, the resin packaged portion having a given amount of resin and a defined height is formed on each of the LED elements.