BOARD FOR CURRENT DRIVING ELEMENTS AND ITS MANUFACTURING METHOD

摘要

PROBLEM TO BE SOLVED: To realize a board for current driven elements such as organic EL light emitting elements, capable of feeding the emitting elements with sufficient power voltages. SOLUTION: Before a unit block 1 having a transistor 11 for driving current driven elements such as organic EL light emitting elements is fitted into a recess formed in a board 3, a power source wiring pattern 2 for feeding a power to the transistor 11 is formed in advance. This allows the power source wiring pattern 2 to be made thick enough to feed the current driven elements with sufficient power voltages.