Koninklijke Philips Corporation N.v.

Philips Lighting Holding B.v.

Philips Lumileds Lighting Company LLC

Lumileds Lighting U.s., LLC

Takaaki Yagi

Gerard Harbers

Serge J Bierhuizen

Takeshi Tamura

Johannes W H S Smitt

Fusanori Arakane

In various embodiments, a light-emitting apparatus is disclosed. In one example, the light-emitting apparatus comprises a substrate, an LED string mounted on the substrate, in which LED string a plurality of LEDs are connected in series, a power supply path connected in series to the LED string, and a plurality of protection elements, each protection element having a first node commonly connected to the power supply path and a second node connected between a pair of the LEDs in the series, wherein the protection elements include capacitors or zener diodes, and an AC impedance of each protection element is smaller than an impedance between the pair of LEDs and a case ground.

Light-emitting apparatus and lighting appliance provided with the same

A light-emitting apparatus including a substrate, an LED string mounted on the substrate, the LED string in which a plurality of light-emitting diodes D-Dare connected in series, a power supply line() connected in series to the LED string, and a plurality of protection capacitors C (C-C), each being arranged between a connection N (N-N) between at least one set of light-emitting diodes in the LED string and the power supply lineand having an impedance smaller than an impedance between the connection N and an case ground.

A backlight for a display includes a plurality of illumination modules, each illumination module including a light source and a reflective member. A portion of the reflective member is disposed over the light source. A liquid crystal display panel is disposed over the plurality of illumination modules. The reflective member is configured such that a majority of light from the light source is directed parallel to the liquid crystal display panel, to provide uniform illumination of the liquid crystal display panel. In some embodiments, the light source is at least one semiconductor light emitting diode.

Illumination module for sectional illumination

A light-emitting device comprises a substrate, electrical terminals disposed on a top side of the substrate, and a light-emitting semiconductor device disposed above the substrate. The light-emitting semiconductor device has a bottom side oriented to face toward the top side of the substrate. Electrodes are disposed on the bottom side of the light-emitting semiconductor device and electrically connected to the terminals on the substrate. A glass layer is arranged in a path of output light emitted by the light-emitting semiconductor device. The glass layer contains fluorescent material that converts at least a portion of the output light to converted light having a wavelength different from a wavelength of the output light. The fluorescent material may include SrS:Eu that emits red light and (Sr, Ba, Ca)Ga S :Eu that emits green light.

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Saitama, Japan

Takaaki Yagi