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Led package having an array of light emitting cells coupled in series

A technology of light-emitting diodes and light-emitting diode lamps, which is applied in the direction of electrical components, fabric elongation, and electric solid devices, can solve the problems of reduced photometric efficiency and increased junction temperature, and achieves separation prevention, stable structure, and reliable technology. simplified effect

Active Publication Date: 2008-03-12
SEOUL SEMICONDUCTOR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the junction temperature of the LED increases due to the increase of the input electric power
An increase in the junction temperature of an LED results in a decrease in photometric efficiency, which indicates the degree to which input energy is converted to visible light

Method used

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  • Led package having an array of light emitting cells coupled in series
  • Led package having an array of light emitting cells coupled in series
  • Led package having an array of light emitting cells coupled in series

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Embodiment Construction

[0055] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The following examples are provided for illustrative purposes only so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the following embodiments, but may be implemented in other forms. In the drawings, the width, length, thickness, etc. of elements are exaggerated for convenience of illustration. Throughout the specification and drawings, like reference numerals refer to like elements.

[0056]

[0057] A light emitting diode (LED) package according to the present invention includes an array of light emitting units coupled in series. 1 to 5 are cross-sectional views illustrating arrays of light emitting cells coupled in series, which are suitable for use in embodiments of the present invention. Here, FIGS. 1 and 2 are cross-sectional views illust...

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Abstract

Disclosed is a light emitting diode (LED) package having an array of light emitting cells coupled in series. The LED package comprises a package body and an LED chip mounted on the package body. The LED chip has an array of light emitting cells coupled in series. Since the LED chip having the array of light emitting cells coupled in series is mounted on the LED package, it can be driven directly using an AC power source.

Description

technical field [0001] The present invention relates to a light emitting diode (LED) package, and more particularly to an LED package having an array of light emitting cells coupled in series, which can be directly connected to an alternating current (AC) power source and controlled by AC power drive. Background technique [0002] Light emitting diodes (LEDs) have been widely used in indicator lights, electronic display panels and displays because they can display color. LEDs are also used for general lighting because they can exhibit white light. Since such LEDs have high efficiency and long lifetime and are not harmful to the environment, their fields of application continue to expand. [0003] Meanwhile, the LED is a semiconductor device formed of a semiconductor p-n junction structure, and emits light through recombination of electrons and holes. Generally, LEDs are driven by current flowing in one direction. Therefore, when an AC power source is used to drive the LE...

Claims

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Application Information

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IPC IPC(8): H01L33/00H01L33/34H01L33/48
CPCH01L2924/01322H01L2224/48091H01L2224/48137H01L2224/49107H01L2924/12041H01L2924/00014H01L2924/00D06C3/06
Inventor 李贞勋李建宁金洪山金大原崔爀仲
Owner SEOUL SEMICONDUCTOR
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