Wavelength-converting light emitting diode (led) chip and led device equipped with chip
AssigneeSamsung Electronics Co., Ltd.
InventorsYong Tae Kim, Dong Yeoul Lee
Life of this patent
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Abstract
A wavelength-converted light emitting diode (LED) chip is provided. The wavelength-converted LED chip includes an LED chip and a wavelength-converted layer. The LED chip emits light in a predetermined wavelength region. The wavelength-converted layer is formed of a resin containing phosphor bodies of at least one kind which convert a portion of the light emitted from the LED chip into light in a different wavelength region. The wavelength-converted layer is formed on an upper surface of the LED chip, and has a convex meniscus-shaped upper surface.
Claims41
A wavelength-converted light emitting diode (LED) chip comprising:
- an LED chip for emitting light in a predetermined wavelength region;
- and
- a wavelength-converted layer formed of a resin containing phosphors of at least one kind which convert a portion of the light emitted from the LED chip into light in a different wavelength region, formed on an upper surface of the LED chip, and having a convex meniscus-shaped upper surface.
A wavelength-converted light emitting device comprising:
- a member for mounting, having first and second lead structures;
- a light emitting diode (LED) chip mounted on the member for mounting so that the LED chip is electrically connected to the first and second lead structures, for emitting light in a predetermined wavelength region;
- and
- a wavelength-converted layer formed of a resin containing phosphors of at least one kind which convert a portion of the light emitted from the LED chip into light in a different wavelength region, formed on an upper surface of the LED chip, and having a convex meniscus-shaped upper surface.
A method for manufacturing a wavelength-converted light emitting device, the method comprising:
- mounting a light emitting diode (LED) chip for emitting light in a predetermined wavelength region on a member for mounting, having first and second lead structures such that the LED chip is electrically connected to the first and second lead structures;
- preparing a liquid resin containing phosphors of at least one kind, for converting a portion of light emitted from the LED chip into light in a different wavelength region;
- providing the liquid resin containing the phosphors on an upper surface of the LED chip such that the liquid resin provided on the upper surface of the mounted LED chip has a structure of a convex meniscus-shaped upper surface;
- and
- forming a wavelength-converted layer on the upper surface of the LED chip by curing the liquid resin containing the phosphors to maintain the structure.
Dependencies are inferred from the claim text.