Sharp Kabushiki Kaisha Corporation

Osamu Jinushi

Toshio Hata

Tomokazu Nada

Makoto Matsuda

Hiroaki Onuma

Yoshihiro Kawaguchi

Keiichi Sawai

A light emitting device which can adjust color temperature as power is supplied from a single power source and a lighting device including the light emitting device are provided. The light emitting device includes an anode electrode land; a cathode electrode land; a first light emitting unit and a second light emitting unit which are electrically connected to the anode electrode land and the cathode electrode land, are adjacently provided in parallel with each other; and a low pass filter including a capacitance member which is provided in parallel with the first light emitting unit and the second light emitting unit, and a resistance member which is provided in series with the first light emitting unit and the second light emitting unit, in which electric resistance of the first light emitting unit is larger than electric resistance of the second light emitting unit.

Lighting device and light emitting device having red and green phosphor arranged therein

There is provided a light-emitting device including an anode electrode land, a cathode electrode land, and a first light-emitting unit and a second light-emitting unit electrically connected to the anode electrode land and the cathode electrode land and provided in parallel to each other, in which the first light-emitting unit and the second light-emitting unit each include blue light-emitting LED chips, the first light-emitting unit and the second light-emitting unit have different amounts of change in luminous flux with respect to an amount of change in current applied between the anode electrode land and the cathode electrode land, and a color temperature generated from an entire light-emitting unit including the first light-emitting unit and the second light-emitting unit can be adjusted.

Light-emitting device

A light emitting device which can adjust color temperature as power is supplied from a single power source comprises an anode electrode land; a cathode electrode land; a first light emitting unit and a second light emitting unit; a low pass filter including a capacitance member which is provided in parallel with the first light emitting unit and the second light emitting unit; and a resistance member which is provided in series with the first light emitting unit and the second light emitting unit. A phosphor which is included in the first light emitting unit and the second light emitting unit includes a red phosphor which is excited by the primary light that is emitted from the LED element and emits light with a peak light emission wavelength into a red region, and a green phosphor which is excited by the primary light that is emitted from the LED element and emits light with a peak light emission wavelength into a green region.

In a semiconductor chip mounted in a semiconductor device, when an opening portion ( ) is formed in a surface protective film ( ) on a pad ( ), the opening portion ( ) is so formed as to have a plurality of openings ( ), each smaller than a tip diameter of a probe needle ( ) and arranged in a grid pattern or stripe pattern. In this configuration, electrical continuity is achieved between the probe needle ( ) and the pad ( ) through a bump electrode ( ) if the bump electrode is properly formed. Electrical continuity between the probe needle ( ) and the pad ( ) is prevented by the opening ( ) and is not achieved if the bump electrode ( ) is improperly formed.

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Sakai, Japan

Osamu Jinushi