Light emitting device, light emitting module, and illuminating apparatus

A light emitting device, comprising:

• a substrate having a surface;
• a first LED structure, disposed on the surface, and having a first side and a second side opposite to the first side;
• a second LED structure disposed on the surface at the first side, and electrically connected to the first LED structure;
• a third LED structure disposed on the surface at the second side, and electrically connected to the first LED structure;
• a first connection pad disposed on the surface at the second side;
• a first connection line extended from the first connection pad toward the first LED structure and having a width less than the first connection pad;
• a second connection pad disposed on the surface at the second side;
• a second connection line connected to the second connection pad and having a width less than the second connection pad;
• a third connection pad disposed on the surface at the second side;
• a third connection line connected to the third connection pad and having a uniform width that is less than the third connection pad;
• and
• a first wavelength conversion layer formed in a unitary structure and continuously covering the first LED structure and the second LED structure without covering the third LED structure, a portion of the first connection line, the first connection pad, the second connection pad, and the third connection pad,
• wherein the first connection pad and the second connection pad are configured to connect to a same polarity,
• wherein the third connection pad is configured to connect to a polarity different from both of the first connection pad and the second connection pad,
• wherein the first LED structure is driven through the first connection pad, the first connection line, the third connection line, and the third connection pad, and
• wherein the third LED structure is driven through the second connection pad, the second connection line, the third connection line, and the third connection pad.