Light emitting device having common N-electrode
First Claim
1. A light emitting device comprising a plurality of GaN-based light emitting elements formed on an insulating substrate,wherein the plurality of light emitting elements are monolithically formed,wherein the plurality of light emitting elements form two groups and, within each of the two groups, the light emitting elements are connected in series,wherein an array of the two groups of light emitting elements has at least two common n electrodes, and wherein one of the two common n-electrodes and two light emitting elements form an approximately square shape.
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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.
41 Citations
6 Claims
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1. A light emitting device comprising a plurality of GaN-based light emitting elements formed on an insulating substrate,
wherein the plurality of light emitting elements are monolithically formed, wherein the plurality of light emitting elements form two groups and, within each of the two groups, the light emitting elements are connected in series, wherein an array of the two groups of light emitting elements has at least two common n electrodes, and wherein one of the two common n-electrodes and two light emitting elements form an approximately square shape.
Specification