LIGHT EMITTING DIODE PACKAGE AND LIQUID CRYSTAL DISPLAY DEVICE INCLUDING THE SAME

摘要

A light emitting diode package includes: a light emitting diode (LED); and an LED lens over the LED, the LED lens having a symmetrical shape with respect to a central axis, wherein the LED lens includes a lower surface having first and second lower surfaces, an upper surface and a side surface connecting the lower surface and the upper surface, wherein the light through the first lower surface is totally reflected on the upper surface and is emitted though the side surface, wherein the first lower surface includes a first curved surface extending from the central axis and a second curved surface extending from a first end portion of the first curved surface, and wherein the second lower surface is flat and extends from a second end portion of the second curved surface.

主权项

1. A liquid crystal display device, comprising:
a light emitting diode (LED) printed circuit board (PCB); an LED package on the LED PCB, the LED package having an LED and an LED lens on the LED, the LED lens having a substantially symmetrical shape with respect to a central axis; and a liquid crystal panel on the LED package, wherein the LED lens includes a lower surface having first and second lower surfaces, an upper surface and a side surface connecting the lower surface and the upper surface, wherein a light incident on the first lower surface is substantially, totally reflected on the upper surface and is emitted through the side surface, wherein the first lower surface includes a first curved surface extending from the central axis and a second curved surface extending from a first end portion of the first curved surface, and wherein the second lower surface is flat and extends from a second end portion of the second curved surface.