Patent ID: 8040930
Filing Date: 2011-10-18
Classification: H01S,H05B,H05K,Y02P

Abstract:
1. A drive circuit for driving a semiconductor light emitting element, comprising: a rigid board having a first surface and a second surface that is opposite to the first surface; a first pattern formed in a first layer of the rigid board so as to be electrically connected to an anode of the semiconductor light emitting element, the first pattern being formed on the first surface; a second pattern formed in a second layer of the rigid board so as to be electrically connected to a cathode of the semiconductor light emitting element, the second pattern being formed on the second surface; a flexible board; a third pattern formed in a third layer of the flexible board, and through which the first pattern and the anode are to be electrically connected to each other; and a fourth pattern formed in a fourth layer of the flexible board, and through which the second pattern and the cathode are to be electrically connected to each other, wherein the first pattern and the second pattern are formed so as to overlap with each other when viewed in a direction along a normal line of the rigid board, the third pattern and the fourth pattern are formed so as to overlap with each other when viewed in a direction along a normal line of the flexible board, and a width of the first pattern and a width of the second pattern are substantially the same, and the width of the first pattern and the width of the second pattern are substantially the same as a width of the rigid board.