Patent ID: 7148515
Filing Date: 2006-12-12
Classification: H01L

Abstract:
1. A light emitting device integrating a rectifier circuit and a plurality of LEDs driven directly by an AC voltage, comprising: a lower substrate having said rectifier circuit, said rectifier circuit having a plurality of first electrical contacts configured on the top surface of said lower substrate; and an upper substrate having said LEDs mutually insulated and arranged in an N×M (N, M≧1) array, said LEDs being forward-connected in an appropriate topology by a plurality of electrical connections so as to form a load circuit matching to said rectifier circuit on said lower substrate, said load circuit having a plurality of second electrical contacts configured correspondingly to said first electrical contacts; wherein said array of said LEDs are faced downward towards the top surface of said lower substrate; and an appropriate electrical connection is established between corresponding pairs of said first electrical contacts and said second electrical contacts so as to complete the full circuit of said light emitting device.