AREA LIGHT SOURCE APPARATUS AND LIQUID CRYSTAL DISPLAY DEVICE

摘要

An area light source apparatus includes a first light source and a second light source. Each of the first light source and the second light source is a three-wavelength light-emitting diode. The first light source includes first spectral characteristics including a first peak value at a blue peak wavelength, a second peak value at a green peak wavelength, and a third peak value at a red peak wavelength. The second light source includes second spectral characteristics including a fourth peak value at a blue peak wavelength, a fifth peak value at a green peak wavelength, and a sixth peak value at a red peak wavelength. The second peak value is substantially equal to the fifth peak value, and the third peak value is substantially equal to the sixth peak value.

主权项

1. An area light source apparatus comprising:
a first light source and a second light source which are aligned in a single direction; and a light guide including a side surface facing the first light source and the second light source and a principal surface crossing the side surface, wherein each of the first light source and the second light source is a three-wavelength light-emitting diode comprising a blue light-emitting diode chip, a red phosphor and a green phosphor, the first light source includes first spectral characteristics including a first peak value at a blue peak wavelength, a second peak value at a green peak wavelength, and a third peak value at a red peak wavelength, the second light source includes second spectral characteristics including a fourth peak value at a blue peak wavelength, a fifth peak value at a green peak wavelength, and a sixth peak value at a red peak wavelength, and the second peak value and the fifth peak value are substantially equal to each other, and the third peak value and the sixth peak value are substantially equal to each other.