Point light source, light-emitting module and display device having the same

A point light source comprising:

• a body including a bottom portion and a protrusion portion protruded from the bottom portion;
• a light-emitting unit including a light-emitting chip disposed at the protrusion portion to be inclined with respect to the bottom portion by an inclined-angle;
• and
• a fluorescent unit covering the bottom portion, the protrusion portion and the light-emitting chip,
• wherein a surface of the protrusion portion comprises a round curved-surface.

A light-emitting module comprising:

• a light-guiding unit including a groove;
• a point light source disposed at the groove that includes a light-emitting chip emitting a first light, and a fluorescent unit receiving the first light and emitting a second light to the light-guiding unit;
• and
• a power supply substrate, on which the point light source is mounted, and providing a driving current to the light-emitting chip.

A display device comprising:

• a point light source including:
• a body including a bottom surface, a first inclined-surface and a second inclined surface inclined with respect to the bottom surface by a first and a second angle, respectively, the first and second inclined-surfaces being substantially symmetric with respect to a perpendicular surface to the bottom surface;
• a light-emitting unit including a first light-emitting chip disposed at the first inclined-surface and a second light-emitting chip disposed at the second inclined-surface;
• and
• a fluorescent unit covering the bottom surface, the first inclined surface, the second inclined-surface, the first light-emitting chip and the second light-emitting chip;
• a power supply substrate, on which the point light source is mounted, the power supply substrate providing a driving current to the first and second light-emitting chips;
• a light-guiding unit including a light-emitting surface, an opposite surface disposed opposite to the light-emitting surface and a side surface including a groove in which the point light source is disposed, wherein a shape of the groove corresponds to a shape of the fluorescent unit of the point light source;
• and
• a display panel displaying an image by using a light emitted from the light-emitting surface.