Light emitting device having shared electrodes
First Claim
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1. A light-emitting device, comprising:
- a first light emitting diode (LED) region comprising at least a first LED element and a second LED element arranged on a single growth substrate; and
a first electrode arranged adjacent to the first LED region and on the single growth substrate,wherein the first LED element and the second LED element are connected in parallel and share a first first-type electrode and a first second-type electrode, andwherein the first LED element has a shape different from a shape of the second LED element so that the first LED element has a recessed region and the first electrode is disposed substantially in the recessed region.
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Abstract
A light-emitting device operating on a high drive voltage and a small drive current. LEDs (1) are two-dimensionally formed on an insulating substrate (10) of e.g., sapphire monolithically and connected in series to form an LED array. Two such LED arrays are connected to electrodes (32) in inverse parallel. Air-bridge wiring (28) is formed between the LEDs (1) and between the LEDs (1) and electrodes (32). The LED arrays are arranged zigzag to form a plurality of LEDs (1) to produce a high drive voltage and a small drive current. Two LED arrays are connected in inverse parallel, and therefore an AC power supply can be used as the power supply.
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Citations
20 Claims
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1. A light-emitting device, comprising:
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a first light emitting diode (LED) region comprising at least a first LED element and a second LED element arranged on a single growth substrate; and a first electrode arranged adjacent to the first LED region and on the single growth substrate, wherein the first LED element and the second LED element are connected in parallel and share a first first-type electrode and a first second-type electrode, and wherein the first LED element has a shape different from a shape of the second LED element so that the first LED element has a recessed region and the first electrode is disposed substantially in the recessed region. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
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19. A light-emitting device, comprising:
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a first light emitting diode (LED) region comprising at least a first LED element and a second LED element arranged on a single growth substrate, the first LED element and the second LED element being connected in parallel and sharing a first-type electrode and a second-type electrode; and a first electrode spaced apart from and connected to the first-type electrode, wherein the first electrode and the first-type electrode are arranged in separate regions on the single growth substrate, wherein the first LED element and the second LED element are monolithically formed on the single growth substrate, and wherein the first LED element has a shape different from a shape of the second LED element so that the first LED element has a recessed region and the first electrode is disposed substantially in the recessed region. - View Dependent Claims (20)
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Specification