Light emitting device having light emitting elements
DCFirst Claim
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1. A light emitting device, comprising:
- an insulating substrate;
at least a first array of GaN-based light emitting elements connected in series and disposed on the insulating substrate,wherein the first array of light emitting elements forms a current path comprising a first part, a second part, and a third part, the first part extending from a first side of the insulating substrate to a second side of the insulating substrate, the second part extending from the second side of the insulating substrate to the first side of the substrate, and the third part extending from the first side of the insulating substrate to the second side of the insulating substrate.
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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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10 Claims
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1. A light emitting device, comprising:
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an insulating substrate; at least a first array of GaN-based light emitting elements connected in series and disposed on the insulating substrate, wherein the first array of light emitting elements forms a current path comprising a first part, a second part, and a third part, the first part extending from a first side of the insulating substrate to a second side of the insulating substrate, the second part extending from the second side of the insulating substrate to the first side of the substrate, and the third part extending from the first side of the insulating substrate to the second side of the insulating substrate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification