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US 8,300,177 B2Granted
Backlight device, liquid crystal display device and illuminating device
AssigneeSharp Kabushiki Kaisha
InventorsMasashi Takemoto, Kiyohisa Ohta, Kenichi Ukai, Nobuyuki Takahashi
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Abstract
A backlight device (10) includes: an LED package (12) including an LED chip (12A) and an Ag reflective layer (12B); and an optical member (for example, a prism sheet (16)) for adjusting light emitted from the LED package (12). The optical member (16) adjusts an amount of a halogen thus contained and the like so that emission of halogen is decreased to a degree in which no silver halide is generated on the Ag reflective layer (12B).
Claims15
A backlight device comprising:
- an LED package including an LED chip and a light reflecting surface, the light reflecting surface containing Ag as its raw material;
- and
- an optical member for adjusting light emitted from the LED package,
- release of a halogen from the optical member being small to such an extent that no silver halide is generated on the light reflecting surface, wherein:
- the optical member is made of resin, and does not contain a halogen, except for a halogen incorporated in a molecular chain of the resin which constitutes the optical member.
2 more elements
A backlight device comprising:
- an LED package including an LED chip and a light reflecting surface, the light reflecting surface containing Ag as its raw material;
- and
- an optical member for adjusting light emitted from the LED package,
- release of a halogen from the optical member being small to such an extent that no silver halide is generated on the light reflecting surface, wherein
- a halogen in the optical member includes bromine of not more than 800 ppm and/or chlorine of not more than 800 ppm so that the total amount of bromine and chlorine is not more than 1000 ppm.
2 more elements
An illuminating device comprising:
- a light source;
- a member having a light reflecting surface which contains Ag as its raw material;
- and
- an optical member for adjusting light emitted from the light source,
- release of a halogen from the optical member being small to such an extent that no silver halide is generated on the light reflecting surface, wherein:
- the optical member is made of resin, and does not contain a halogen, except for a halogen incorporated in a molecular chain of the resin which constitutes the optical member.
3 more elements
Dependencies are inferred from the claim text.