Transparent light emitting diodes
DC CAFCFirst Claim
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1. A light emitting device, comprising:
- a lead frame having a transparent plate therein; and
a light emitting diode (LED) chip, mounted on the lead frame and placed on or above the transparent plate in the lead frame, emitting light through at least front and back sides of the LED chip;
wherein the transparent plate in the lead frame allows the light emitted from the LED chip to be extracted out of the LED chip from the front or back sides of the LED chip and through the transparent plate in the lead frame.
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Abstract
A transparent light emitting diode (LED) includes a plurality of III-nitride layers, including an active region that emits light, wherein all of the layers except for the active region are transparent for an emission wavelength of the light, such that the light is extracted effectively through all of the layers and in multiple directions through the layers. Moreover, the surface of one or more of the III-nitride layers may be roughened, textured, patterned or shaped to enhance light extraction.
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Citations
26 Claims
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1. A light emitting device, comprising:
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a lead frame having a transparent plate therein; and a light emitting diode (LED) chip, mounted on the lead frame and placed on or above the transparent plate in the lead frame, emitting light through at least front and back sides of the LED chip; wherein the transparent plate in the lead frame allows the light emitted from the LED chip to be extracted out of the LED chip from the front or back sides of the LED chip and through the transparent plate in the lead frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method for fabricating a light emitting device, comprising:
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providing a lead frame having a transparent plate therein; and mounting a light emitting diode (LED) chip on the lead frame, wherein the LED is placed on or above the transparent plate in the lead frame; wherein light is emitted through at least front and back sides of the LED chip; and wherein the transparent plate in the lead frame allows the light emitted from the LED chip to be extracted out of the LED chip from the front or back sides of the LED chip and through the transparent plate in the lead frame. - View Dependent Claims (15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification