| 摘要 |
PURPOSE: A flexible printed circuit board is provided to improve the workability and stability of a printed circuit board by providing a property of being easily folded in an area where folding is required. CONSTITUTION: A printed circuit board comprises a first substrate for arranging light emitting devices(60a-60n) and a second substrate(200) extending the first substrate. The first substrate includes an A area for arranging the light emitting device and a B area for arranging an electrode line(80) for the light emitting device. The light emitting device has an electrically similar property to a diode. The light emitting device is set by group. A pair of electrode lines is allocated to each group of the light emitting device. A dummy electrode line(210) is formed to become wider than the electrode line to prevent to be folded or contorted due to an external force. |
